/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c

Bug Summary

File:	src/gnu/usr.bin/binutils/gdb/dwarf2read.c
Warning:	line 8711, column 22 The left expression of the compound assignment is an uninitialized value. The computed value will also be garbage
Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name dwarf2read.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/gnu/usr.bin/binutils/obj/gdb -resource-dir /usr/local/lib/clang/13.0.0 -D PIE_DEFAULT=1 -I . -I /usr/src/gnu/usr.bin/binutils/gdb -I /usr/src/gnu/usr.bin/binutils/gdb/config -D LOCALEDIR="/usr/share/locale" -D HAVE_CONFIG_H -I /usr/src/gnu/usr.bin/binutils/gdb/../include/opcode -I ../bfd -I /usr/src/gnu/usr.bin/binutils/gdb/../bfd -I /usr/src/gnu/usr.bin/binutils/gdb/../include -I ../intl -I /usr/src/gnu/usr.bin/binutils/gdb/../intl -D MI_OUT=1 -D TUI=1 -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/gnu/usr.bin/binutils/obj/gdb -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -fcommon -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c /usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c
1/* DWARF 2 debugging format support for GDB.

 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
 2004
 Free Software Foundation, Inc.

 Adapted by Gary Funck (gary@intrepid.com), Intrepid Technology,
 Inc.  with support from Florida State University (under contract
 with the Ada Joint Program Office), and Silicon Graphics, Inc.
 Initial contribution by Brent Benson, Harris Computer Systems, Inc.,
 based on Fred Fish's (Cygnus Support) implementation of DWARF 1
 support in dwarfread.c

 This file is part of GDB.

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or (at
 your option) any later version.

 This program is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */

31#include "defs.h"
32#include "bfd.h"
33#include "symtab.h"
34#include "gdbtypes.h"
35#include "objfiles.h"
36#include "elf/dwarf2.h"
37#include "buildsym.h"
38#include "demangle.h"
39#include "expression.h"
40#include "filenames.h"	/* for DOSish file names */
41#include "macrotab.h"
42#include "language.h"
43#include "complaints.h"
44#include "bcache.h"
45#include "dwarf2expr.h"
46#include "dwarf2loc.h"
47#include "cp-support.h"
48#include "hashtab.h"
49#include "command.h"
50#include "gdbcmd.h"

52#include <fcntl.h>
53#include "gdb_string.h"
54#include "gdb_assert.h"
55#include <sys/types.h>

57/* A note on memory usage for this file.
 
 At the present time, this code reads the debug info sections into
 the objfile's objfile_obstack.  A definite improvement for startup
 time, on platforms which do not emit relocations for debug
 sections, would be to use mmap instead.  The object's complete
 debug information is loaded into memory, partly to simplify
 absolute DIE references.

 Whether using obstacks or mmap, the sections should remain loaded
 until the objfile is released, and pointers into the section data
 can be used for any other data associated to the objfile (symbol
 names, type names, location expressions to name a few).  */

71#ifndef DWARF2_REG_TO_REGNUM
72#define DWARF2_REG_TO_REGNUM(REG)(gdbarch_dwarf2_reg_to_regnum (current_gdbarch, REG)) (REG)
73#endif

75#if 0
76/* .debug_info header for a compilation unit
 Because of alignment constraints, this structure has padding and cannot
 be mapped directly onto the beginning of the .debug_info section.  */
79typedef struct comp_unit_header
{
  unsigned int length;	/* length of the .debug_info
		   contribution */
  unsigned short version;	/* version number -- 2 for DWARF
		   version 2 */
  unsigned int abbrev_offset;	/* offset into .debug_abbrev section */
  unsigned char addr_size;	/* byte size of an address -- 4 */
}
88_COMP_UNIT_HEADER;
89#define _ACTUAL_COMP_UNIT_HEADER_SIZE 11
90#endif

92/* .debug_pubnames header
 Because of alignment constraints, this structure has padding and cannot
 be mapped directly onto the beginning of the .debug_info section.  */
95typedef struct pubnames_header
{
  unsigned int length;	/* length of the .debug_pubnames
		   contribution  */
  unsigned char version;	/* version number -- 2 for DWARF
		   version 2 */
  unsigned int info_offset;	/* offset into .debug_info section */
  unsigned int info_size;	/* byte size of .debug_info section
		   portion */
}
105_PUBNAMES_HEADER;
106#define _ACTUAL_PUBNAMES_HEADER_SIZE13 13

108/* .debug_pubnames header
 Because of alignment constraints, this structure has padding and cannot
 be mapped directly onto the beginning of the .debug_info section.  */
111typedef struct aranges_header
{
  unsigned int length;	/* byte len of the .debug_aranges
		   contribution */
  unsigned short version;	/* version number -- 2 for DWARF
		   version 2 */
  unsigned int info_offset;	/* offset into .debug_info section */
  unsigned char addr_size;	/* byte size of an address */
  unsigned char seg_size;	/* byte size of segment descriptor */
}
121_ARANGES_HEADER;
122#define _ACTUAL_ARANGES_HEADER_SIZE12 12

124/* .debug_line statement program prologue
 Because of alignment constraints, this structure has padding and cannot
 be mapped directly onto the beginning of the .debug_info section.  */
127typedef struct statement_prologue
{
  unsigned int total_length;	/* byte length of the statement
		   information */
  unsigned short version;	/* version number -- 2 for DWARF
		   version 2 */
  unsigned int prologue_length;	/* # bytes between prologue &
			   stmt program */
  unsigned char minimum_instruction_length;	/* byte size of
				   smallest instr */
  unsigned char default_is_stmt;	/* initial value of is_stmt
			   register */
  char line_base;
  unsigned char line_range;
  unsigned char opcode_base;	/* number assigned to first special
		   opcode */
  unsigned char *standard_opcode_lengths;
}
145_STATEMENT_PROLOGUE;

147static const struct objfile_data *dwarf2_objfile_data_key;

149struct dwarf2_per_objfile
150{
/* Sizes of debugging sections.  */
unsigned int info_size;
unsigned int abbrev_size;
unsigned int line_size;
unsigned int pubnames_size;
unsigned int aranges_size;
unsigned int loc_size;
unsigned int macinfo_size;
unsigned int str_size;
unsigned int ranges_size;
unsigned int frame_size;
unsigned int eh_frame_size;

/* Loaded data from the sections.  */
char *info_buffer;
char *abbrev_buffer;
char *line_buffer;
char *str_buffer;
char *macinfo_buffer;
char *ranges_buffer;
char *loc_buffer;

/* A list of all the compilation units.  This is used to locate
   the target compilation unit of a particular reference.  */
struct dwarf2_per_cu_data **all_comp_units;

/* The number of compilation units in ALL_COMP_UNITS.  */
int n_comp_units;

/* A chain of compilation units that are currently read in, so that
   they can be freed later.  */
struct dwarf2_per_cu_data *read_in_chain;
183};

185static struct dwarf2_per_objfile *dwarf2_per_objfile;

187static asection *dwarf_info_section;
188static asection *dwarf_abbrev_section;
189static asection *dwarf_line_section;
190static asection *dwarf_pubnames_section;
191static asection *dwarf_aranges_section;
192static asection *dwarf_loc_section;
193static asection *dwarf_macinfo_section;
194static asection *dwarf_str_section;
195static asection *dwarf_ranges_section;
196asection *dwarf_frame_section;
197asection *dwarf_eh_frame_section;

199/* names of the debugging sections */

201#define INFO_SECTION".debug_info"     ".debug_info"
202#define ABBREV_SECTION".debug_abbrev"   ".debug_abbrev"
203#define LINE_SECTION".debug_line"     ".debug_line"
204#define PUBNAMES_SECTION".debug_pubnames" ".debug_pubnames"
205#define ARANGES_SECTION".debug_aranges"  ".debug_aranges"
206#define LOC_SECTION".debug_loc"      ".debug_loc"
207#define MACINFO_SECTION".debug_macinfo"  ".debug_macinfo"
208#define STR_SECTION".debug_str"      ".debug_str"
209#define RANGES_SECTION".debug_ranges"   ".debug_ranges"
210#define FRAME_SECTION".debug_frame"    ".debug_frame"
211#define EH_FRAME_SECTION".eh_frame" ".eh_frame"

213/* local data types */

215/* We hold several abbreviation tables in memory at the same time. */
216#ifndef ABBREV_HASH_SIZE121
217#define ABBREV_HASH_SIZE121 121
218#endif

220/* The data in a compilation unit header, after target2host
 translation, looks like this.  */
222struct comp_unit_head
223{
unsigned long length;
short version;
unsigned int abbrev_offset;
unsigned char addr_size;
unsigned char signed_addr_p;

/* Size of file offsets; either 4 or 8.  */
unsigned int offset_size;

/* Size of the length field; either 4 or 12.  */
unsigned int initial_length_size;

/* Offset to the first byte of this compilation unit header in the
   .debug_info section, for resolving relative reference dies.  */
unsigned int offset;

/* Pointer to this compilation unit header in the .debug_info
   section.  */
char *cu_head_ptr;

/* Pointer to the first die of this compilation unit.  This will be
   the first byte following the compilation unit header.  */
char *first_die_ptr;

/* Pointer to the next compilation unit header in the program.  */
struct comp_unit_head *next;

/* Base address of this compilation unit.  */
CORE_ADDR base_address;

/* Non-zero if base_address has been set.  */
int base_known;
256};

258/* Fixed size for the DIE hash table.  */
259#ifndef REF_HASH_SIZE1021
260#define REF_HASH_SIZE1021 1021
261#endif

263/* Internal state when decoding a particular compilation unit.  */
264struct dwarf2_cu
265{
/* The objfile containing this compilation unit.  */
struct objfile *objfile;

/* The header of the compilation unit.

   FIXME drow/2003-11-10: Some of the things from the comp_unit_head
   should logically be moved to the dwarf2_cu structure.  */
struct comp_unit_head header;

struct function_range *first_fn, *last_fn, *cached_fn;

/* The language we are debugging.  */
enum language language;
const struct language_defn *language_defn;

const char *producer;

/* The generic symbol table building routines have separate lists for
   file scope symbols and all all other scopes (local scopes).  So
   we need to select the right one to pass to add_symbol_to_list().
   We do it by keeping a pointer to the correct list in list_in_scope.

   FIXME: The original dwarf code just treated the file scope as the
   first local scope, and all other local scopes as nested local
   scopes, and worked fine.  Check to see if we really need to
   distinguish these in buildsym.c.  */
struct pending **list_in_scope;

/* Maintain an array of referenced fundamental types for the current
   compilation unit being read.  For DWARF version 1, we have to construct
   the fundamental types on the fly, since no information about the
   fundamental types is supplied.  Each such fundamental type is created by
   calling a language dependent routine to create the type, and then a
   pointer to that type is then placed in the array at the index specified
   by it's FT_<TYPENAME> value.  The array has a fixed size set by the
   FT_NUM_MEMBERS compile time constant, which is the number of predefined
   fundamental types gdb knows how to construct.  */
struct type *ftypes[FT_NUM_MEMBERS29];	/* Fundamental types */

/* DWARF abbreviation table associated with this compilation unit.  */
struct abbrev_info **dwarf2_abbrevs;

/* Storage for the abbrev table.  */
struct obstack abbrev_obstack;

/* Hash table holding all the loaded partial DIEs.  */
htab_t partial_dies;

/* Storage for things with the same lifetime as this read-in compilation
   unit, including partial DIEs.  */
struct obstack comp_unit_obstack;

/* When multiple dwarf2_cu structures are living in memory, this field
   chains them all together, so that they can be released efficiently.
   We will probably also want a generation counter so that most-recently-used
   compilation units are cached...  */
struct dwarf2_per_cu_data *read_in_chain;

/* Backchain to our per_cu entry if the tree has been built.  */
struct dwarf2_per_cu_data *per_cu;

/* How many compilation units ago was this CU last referenced?  */
int last_used;

/* A hash table of die offsets for following references.  */
struct die_info *die_ref_table[REF_HASH_SIZE1021];

/* Full DIEs if read in.  */
struct die_info *dies;

/* A set of pointers to dwarf2_per_cu_data objects for compilation
   units referenced by this one.  Only set during full symbol processing;
   partial symbol tables do not have dependencies.  */
htab_t dependencies;

/* Mark used when releasing cached dies.  */
unsigned int mark : 1;

/* This flag will be set if this compilation unit might include
   inter-compilation-unit references.  */
unsigned int has_form_ref_addr : 1;

/* This flag will be set if this compilation unit includes any
   DW_TAG_namespace DIEs.  If we know that there are explicit
   DIEs for namespaces, we don't need to try to infer them
   from mangled names.  */
unsigned int has_namespace_info : 1;
353};

355/* Persistent data held for a compilation unit, even when not
 processing it.  We put a pointer to this structure in the
 read_symtab_private field of the psymtab.  If we encounter
 inter-compilation-unit references, we also maintain a sorted
 list of all compilation units.  */

361struct dwarf2_per_cu_data
362{
/* The start offset and length of this compilation unit.  2**31-1
   bytes should suffice to store the length of any compilation unit
   - if it doesn't, GDB will fall over anyway.  */
unsigned long offset;
unsigned long length : 31;

/* Flag indicating this compilation unit will be read in before
   any of the current compilation units are processed.  */
unsigned long queued : 1;

/* Set iff currently read in.  */
struct dwarf2_cu *cu;

/* If full symbols for this CU have been read in, then this field
   holds a map of DIE offsets to types.  It isn't always possible
   to reconstruct this information later, so we have to preserve
   it.  */
htab_t type_hash;

/* The partial symbol table associated with this compilation unit.  */
struct partial_symtab *psymtab;
384};

386/* The line number information for a compilation unit (found in the
 .debug_line section) begins with a "statement program header",
 which contains the following information.  */
389struct line_header
390{
unsigned int total_length;
unsigned short version;
unsigned int header_length;
unsigned char minimum_instruction_length;
unsigned char default_is_stmt;
int line_base;
unsigned char line_range;
unsigned char opcode_base;

/* standard_opcode_lengths[i] is the number of operands for the
   standard opcode whose value is i.  This means that
   standard_opcode_lengths[0] is unused, and the last meaningful
   element is standard_opcode_lengths[opcode_base - 1].  */
unsigned char *standard_opcode_lengths;

/* The include_directories table.  NOTE!  These strings are not
   allocated with xmalloc; instead, they are pointers into
   debug_line_buffer.  If you try to free them, `free' will get
   indigestion.  */
unsigned int num_include_dirs, include_dirs_size;
char **include_dirs;

/* The file_names table.  NOTE!  These strings are not allocated
   with xmalloc; instead, they are pointers into debug_line_buffer.
   Don't try to free them directly.  */
unsigned int num_file_names, file_names_size;
struct file_entry
{
  char *name;
  unsigned int dir_index;
  unsigned int mod_time;
  unsigned int length;
  int included_p; /* Non-zero if referenced by the Line Number Program.  */
} *file_names;

/* The start and end of the statement program following this
   header.  These point into dwarf2_per_objfile->line_buffer.  */
char *statement_program_start, *statement_program_end;
429};

431/* When we construct a partial symbol table entry we only
 need this much information. */
433struct partial_die_info
{
  /* Offset of this DIE.  */
  unsigned int offset;

  /* DWARF-2 tag for this DIE.  */
  ENUM_BITFIELD(dwarf_tag)enum dwarf_tag tag : 16;

  /* Language code associated with this DIE.  This is only used
     for the compilation unit DIE.  */
  unsigned int language : 8;

  /* Assorted flags describing the data found in this DIE.  */
  unsigned int has_children : 1;
  unsigned int is_external : 1;
  unsigned int is_declaration : 1;
  unsigned int has_type : 1;
  unsigned int has_specification : 1;
  unsigned int has_stmt_list : 1;
  unsigned int has_pc_info : 1;

  /* Flag set if the SCOPE field of this structure has been
     computed.  */
  unsigned int scope_set : 1;

  /* The name of this DIE.  Normally the value of DW_AT_name, but
     sometimes DW_TAG_MIPS_linkage_name or a string computed in some
     other fashion.  */
  char *name;
  char *dirname;

  /* The scope to prepend to our children.  This is generally
     allocated on the comp_unit_obstack, so will disappear
     when this compilation unit leaves the cache.  */
  char *scope;

  /* The location description associated with this DIE, if any.  */
  struct dwarf_block *locdesc;

  /* If HAS_PC_INFO, the PC range associated with this DIE.  */
  CORE_ADDR lowpc;
  CORE_ADDR highpc;

  /* Pointer into the info_buffer pointing at the target of
     DW_AT_sibling, if any.  */
  char *sibling;

  /* If HAS_SPECIFICATION, the offset of the DIE referred to by
     DW_AT_specification (or DW_AT_abstract_origin or
     DW_AT_extension).  */
  unsigned int spec_offset;

  /* If HAS_STMT_LIST, the offset of the Line Number Information data.  */
  unsigned int line_offset;

  /* Pointers to this DIE's parent, first child, and next sibling,
     if any.  */
  struct partial_die_info *die_parent, *die_child, *die_sibling;
};

493/* This data structure holds the information of an abbrev. */
494struct abbrev_info
{
  unsigned int number;	/* number identifying abbrev */
  enum dwarf_tag tag;		/* dwarf tag */
  unsigned short has_children;		/* boolean */
  unsigned short num_attrs;	/* number of attributes */
  struct attr_abbrev *attrs;	/* an array of attribute descriptions */
  struct abbrev_info *next;	/* next in chain */
};

504struct attr_abbrev
{
  enum dwarf_attribute name;
  enum dwarf_form form;
};

510/* This data structure holds a complete die structure. */
511struct die_info
{
  enum dwarf_tag tag;		/* Tag indicating type of die */
  unsigned int abbrev;	/* Abbrev number */
  unsigned int offset;	/* Offset in .debug_info section */
  unsigned int num_attrs;	/* Number of attributes */
  struct attribute *attrs;	/* An array of attributes */
  struct die_info *next_ref;	/* Next die in ref hash table */

  /* The dies in a compilation unit form an n-ary tree.  PARENT
     points to this die's parent; CHILD points to the first child of
     this node; and all the children of a given node are chained
     together via their SIBLING fields, terminated by a die whose
     tag is zero.  */
  struct die_info *child;	/* Its first child, if any.  */
  struct die_info *sibling;	/* Its next sibling, if any.  */
  struct die_info *parent;	/* Its parent, if any.  */

  struct type *type;		/* Cached type information */
};

532/* Attributes have a name and a value */
533struct attribute
{
  enum dwarf_attribute name;
  enum dwarf_form form;
  union
    {
char *str;
struct dwarf_block *blk;
unsigned long unsnd;
long int snd;
CORE_ADDR addr;
    }
  u;
};

548struct function_range
549{
const char *name;
CORE_ADDR lowpc, highpc;
int seen_line;
struct function_range *next;
554};

556/* Get at parts of an attribute structure */

558#define DW_STRING(attr)((attr)->u.str)    ((attr)->u.str)
559#define DW_UNSND(attr)((attr)->u.unsnd)     ((attr)->u.unsnd)
560#define DW_BLOCK(attr)((attr)->u.blk)     ((attr)->u.blk)
561#define DW_SND(attr)((attr)->u.snd)       ((attr)->u.snd)
562#define DW_ADDR(attr)((attr)->u.addr)	   ((attr)->u.addr)

564/* Blocks are a bunch of untyped bytes. */
565struct dwarf_block
{
  unsigned int size;
  char *data;
};

571#ifndef ATTR_ALLOC_CHUNK4
572#define ATTR_ALLOC_CHUNK4 4
573#endif

575/* Allocate fields for structs, unions and enums in this size.  */
576#ifndef DW_FIELD_ALLOC_CHUNK4
577#define DW_FIELD_ALLOC_CHUNK4 4
578#endif

580/* A zeroed version of a partial die for initialization purposes.  */
581static struct partial_die_info zeroed_partial_die;

583/* FIXME: decode_locdesc sets these variables to describe the location
 to the caller.  These ought to be a structure or something.   If
 none of the flags are set, the object lives at the address returned
 by decode_locdesc.  */

588static int isreg;		/* Object lives in register.
		   decode_locdesc's return value is
		   the register number.  */

592/* FIXME: We might want to set this from BFD via bfd_arch_bits_per_byte,
 but this would require a corresponding change in unpack_field_as_long
 and friends.  */
595static int bits_per_byte = 8;

597/* The routines that read and process dies for a C struct or C++ class
 pass lists of data member fields and lists of member function fields
 in an instance of a field_info structure, as defined below.  */
600struct field_info
{
  /* List of data member and baseclasses fields. */
  struct nextfield
    {
struct nextfield *next;
int accessibility;
int virtuality;
struct field field;
    }
   *fields;

  /* Number of fields.  */
  int nfields;

  /* Number of baseclasses.  */
  int nbaseclasses;

  /* Set if the accesibility of one of the fields is not public.  */
  int non_public_fields;

  /* Member function fields array, entries are allocated in the order they
     are encountered in the object file.  */
  struct nextfnfield
    {
struct nextfnfield *next;
struct fn_field fnfield;
    }
   *fnfields;

  /* Member function fieldlist array, contains name of possibly overloaded
     member function, number of overloaded member functions and a pointer
     to the head of the member function field chain.  */
  struct fnfieldlist
    {
char *name;
int length;
struct nextfnfield *head;
    }
   *fnfieldlists;

  /* Number of entries in the fnfieldlists array.  */
  int nfnfields;
};

645/* One item on the queue of compilation units to read in full symbols
 for.  */
647struct dwarf2_queue_item
648{
struct dwarf2_per_cu_data *per_cu;
struct dwarf2_queue_item *next;
651};

653/* The current queue.  */
654static struct dwarf2_queue_item *dwarf2_queue, *dwarf2_queue_tail;

656/* Loaded secondary compilation units are kept in memory until they
 have not been referenced for the processing of this many
 compilation units.  Set this to zero to disable caching.  Cache
 sizes of up to at least twenty will improve startup time for
 typical inter-CU-reference binaries, at an obvious memory cost.  */
661static int dwarf2_max_cache_age = 5;

663/* Various complaints about symbol reading that don't abort the process */

665static void
666dwarf2_statement_list_fits_in_line_number_section_complaint (void)
667{
complaint (&symfile_complaints,
    "statement list doesn't fit in .debug_line section");
670}

672static void
673dwarf2_complex_location_expr_complaint (void)
674{
complaint (&symfile_complaints, "location expression too complex");
676}

678static void
679dwarf2_const_value_length_mismatch_complaint (const char *arg1, int arg2,
			      int arg3)
681{
complaint (&symfile_complaints,
    "const value length mismatch for '%s', got %d, expected %d", arg1,
    arg2, arg3);
685}

687static void
688dwarf2_macros_too_long_complaint (void)
689{
complaint (&symfile_complaints,
    "macro info runs off end of `.debug_macinfo' section");
692}

694static void
695dwarf2_macro_malformed_definition_complaint (const char *arg1)
696{
complaint (&symfile_complaints,
    "macro debug info contains a malformed macro definition:\n`%s'",
    arg1);
700}

702static void
703dwarf2_invalid_attrib_class_complaint (const char *arg1, const char *arg2)
704{
complaint (&symfile_complaints,
    "invalid attribute class or form for '%s' in '%s'", arg1, arg2);
707}

709/* local function prototypes */

711static void dwarf2_locate_sections (bfd *, asection *, void *);

713#if 0
714static void dwarf2_build_psymtabs_easy (struct objfile *, int);
715#endif

717static void dwarf2_create_include_psymtab (char *, struct partial_symtab *,
                                         struct objfile *);

720static void dwarf2_build_include_psymtabs (struct dwarf2_cu *,
                                         struct partial_die_info *,
                                         struct partial_symtab *);

724static void dwarf2_build_psymtabs_hard (struct objfile *, int);

726static void scan_partial_symbols (struct partial_die_info *,
		  CORE_ADDR *, CORE_ADDR *,
		  struct dwarf2_cu *);

730static void add_partial_symbol (struct partial_die_info *,
		struct dwarf2_cu *);

733static int pdi_needs_namespace (enum dwarf_tag tag);

735static void add_partial_namespace (struct partial_die_info *pdi,
		   CORE_ADDR *lowpc, CORE_ADDR *highpc,
		   struct dwarf2_cu *cu);

739static void add_partial_enumeration (struct partial_die_info *enum_pdi,
		     struct dwarf2_cu *cu);

742static char *locate_pdi_sibling (struct partial_die_info *orig_pdi,
		 char *info_ptr,
		 bfd *abfd,
		 struct dwarf2_cu *cu);

747static void dwarf2_psymtab_to_symtab (struct partial_symtab *);

749static void psymtab_to_symtab_1 (struct partial_symtab *);

751char *dwarf2_read_section (struct objfile *, asection *);

753static void dwarf2_read_abbrevs (bfd *abfd, struct dwarf2_cu *cu);

755static void dwarf2_free_abbrev_table (void *);

757static struct abbrev_info *peek_die_abbrev (char *, int *, struct dwarf2_cu *);

759static struct abbrev_info *dwarf2_lookup_abbrev (unsigned int,
				 struct dwarf2_cu *);

762static struct partial_die_info *load_partial_dies (bfd *, char *, int,
				   struct dwarf2_cu *);

765static char *read_partial_die (struct partial_die_info *,
	       struct abbrev_info *abbrev, unsigned int,
	       bfd *, char *, struct dwarf2_cu *);

769static struct partial_die_info *find_partial_die (unsigned long,
				  struct dwarf2_cu *);

772static void fixup_partial_die (struct partial_die_info *,
	       struct dwarf2_cu *);

775static char *read_full_die (struct die_info **, bfd *, char *,
	    struct dwarf2_cu *, int *);

778static char *read_attribute (struct attribute *, struct attr_abbrev *,
	     bfd *, char *, struct dwarf2_cu *);

781static char *read_attribute_value (struct attribute *, unsigned,
	     bfd *, char *, struct dwarf2_cu *);

784static unsigned int read_1_byte (bfd *, char *);

786static int read_1_signed_byte (bfd *, char *);

788static unsigned int read_2_bytes (bfd *, char *);

790static unsigned int read_4_bytes (bfd *, char *);

792static unsigned long read_8_bytes (bfd *, char *);

794static CORE_ADDR read_address (bfd *, char *ptr, struct dwarf2_cu *,
	       int *bytes_read);

797static LONGESTlong read_initial_length (bfd *, char *,
                                  struct comp_unit_head *, int *bytes_read);

800static LONGESTlong read_offset (bfd *, char *, const struct comp_unit_head *,
                          int *bytes_read);

803static char *read_n_bytes (bfd *, char *, unsigned int);

805static char *read_string (bfd *, char *, unsigned int *);

807static char *read_indirect_string (bfd *, char *, const struct comp_unit_head *,
		   unsigned int *);

810static unsigned long read_unsigned_leb128 (bfd *, char *, unsigned int *);

812static long read_signed_leb128 (bfd *, char *, unsigned int *);

814static char *skip_leb128 (bfd *, char *);

816static void set_cu_language (unsigned int, struct dwarf2_cu *);

818static struct attribute *dwarf2_attr (struct die_info *, unsigned int,
		      struct dwarf2_cu *);

821static int dwarf2_flag_true_p (struct die_info *die, unsigned name,
                             struct dwarf2_cu *cu);

824static int die_is_declaration (struct die_info *, struct dwarf2_cu *cu);

826static struct die_info *die_specification (struct die_info *die,
			   struct dwarf2_cu *);

829static void free_line_header (struct line_header *lh);

831static void add_file_name (struct line_header *, char *, unsigned int,
                         unsigned int, unsigned int);

834static struct line_header *(dwarf_decode_line_header
                          (unsigned int offset,
                           bfd *abfd, struct dwarf2_cu *cu));

838static void dwarf_decode_lines (struct line_header *, char *, bfd *,
		struct dwarf2_cu *, struct partial_symtab *);

841static void dwarf2_start_subfile (char *, char *);

843static struct symbol *new_symbol (struct die_info *, struct type *,
		  struct dwarf2_cu *);

846static void dwarf2_const_value (struct attribute *, struct symbol *,
		struct dwarf2_cu *);

849static void dwarf2_const_value_data (struct attribute *attr,
		     struct symbol *sym,
		     int bits);

853static struct type *die_type (struct die_info *, struct dwarf2_cu *);

855static struct type *die_containing_type (struct die_info *,
			 struct dwarf2_cu *);

858static struct type *tag_type_to_type (struct die_info *, struct dwarf2_cu *);

860static void read_type_die (struct die_info *, struct dwarf2_cu *);

862static char *determine_prefix (struct die_info *die, struct dwarf2_cu *);

864static char *typename_concat (struct obstack *, const char *prefix, const char *suffix,
	      struct dwarf2_cu *);

867static void read_typedef (struct die_info *, struct dwarf2_cu *);

869static void read_base_type (struct die_info *, struct dwarf2_cu *);

871static void read_subrange_type (struct die_info *die, struct dwarf2_cu *cu);

873static void read_file_scope (struct die_info *, struct dwarf2_cu *);

875static void read_func_scope (struct die_info *, struct dwarf2_cu *);

877static void read_lexical_block_scope (struct die_info *, struct dwarf2_cu *);

879static int dwarf2_get_pc_bounds (struct die_info *,
		 CORE_ADDR *, CORE_ADDR *, struct dwarf2_cu *);

882static void get_scope_pc_bounds (struct die_info *,
		 CORE_ADDR *, CORE_ADDR *,
		 struct dwarf2_cu *);

886static void dwarf2_add_field (struct field_info *, struct die_info *,
	      struct dwarf2_cu *);

889static void dwarf2_attach_fields_to_type (struct field_info *,
			  struct type *, struct dwarf2_cu *);

892static void dwarf2_add_member_fn (struct field_info *,
		  struct die_info *, struct type *,
		  struct dwarf2_cu *);

896static void dwarf2_attach_fn_fields_to_type (struct field_info *,
			     struct type *, struct dwarf2_cu *);

899static void read_structure_type (struct die_info *, struct dwarf2_cu *);

901static void process_structure_scope (struct die_info *, struct dwarf2_cu *);

903static char *determine_class_name (struct die_info *die, struct dwarf2_cu *cu);

905static void read_common_block (struct die_info *, struct dwarf2_cu *);

907static void read_namespace (struct die_info *die, struct dwarf2_cu *);

909static const char *namespace_name (struct die_info *die,
		   int *is_anonymous, struct dwarf2_cu *);

912static void read_enumeration_type (struct die_info *, struct dwarf2_cu *);

914static void process_enumeration_scope (struct die_info *, struct dwarf2_cu *);

916static struct type *dwarf_base_type (int, int, struct dwarf2_cu *);

918static CORE_ADDR decode_locdesc (struct dwarf_block *, struct dwarf2_cu *);

920static void read_array_type (struct die_info *, struct dwarf2_cu *);

922static enum dwarf_array_dim_ordering read_array_order (struct die_info *, 
				       struct dwarf2_cu *);

925static void read_tag_pointer_type (struct die_info *, struct dwarf2_cu *);

927static void read_tag_ptr_to_member_type (struct die_info *,
			 struct dwarf2_cu *);

930static void read_tag_reference_type (struct die_info *, struct dwarf2_cu *);

932static void read_tag_const_type (struct die_info *, struct dwarf2_cu *);

934static void read_tag_volatile_type (struct die_info *, struct dwarf2_cu *);

936static void read_tag_string_type (struct die_info *, struct dwarf2_cu *);

938static void read_subroutine_type (struct die_info *, struct dwarf2_cu *);

940static struct die_info *read_comp_unit (char *, bfd *, struct dwarf2_cu *);

942static struct die_info *read_die_and_children (char *info_ptr, bfd *abfd,
			       struct dwarf2_cu *,
			       char **new_info_ptr,
			       struct die_info *parent);

947static struct die_info *read_die_and_siblings (char *info_ptr, bfd *abfd,
			       struct dwarf2_cu *,
			       char **new_info_ptr,
			       struct die_info *parent);

952static void free_die_list (struct die_info *);

954static void process_die (struct die_info *, struct dwarf2_cu *);

956static char *dwarf2_linkage_name (struct die_info *, struct dwarf2_cu *);

958static char *dwarf2_name (struct die_info *die, struct dwarf2_cu *);

960static struct die_info *dwarf2_extension (struct die_info *die,
			  struct dwarf2_cu *);

963static char *dwarf_tag_name (unsigned int);

965static char *dwarf_attr_name (unsigned int);

967static char *dwarf_form_name (unsigned int);

969static char *dwarf_stack_op_name (unsigned int);

971static char *dwarf_bool_name (unsigned int);

973static char *dwarf_type_encoding_name (unsigned int);

975#if 0
976static char *dwarf_cfi_name (unsigned int);

978struct die_info *copy_die (struct die_info *);
979#endif

981static struct die_info *sibling_die (struct die_info *);

983static void dump_die (struct die_info *);

985static void dump_die_list (struct die_info *);

987static void store_in_ref_table (unsigned int, struct die_info *,
		struct dwarf2_cu *);

990static unsigned int dwarf2_get_ref_die_offset (struct attribute *,
			       struct dwarf2_cu *);

993static int dwarf2_get_attr_constant_value (struct attribute *, int);

995static struct die_info *follow_die_ref (struct die_info *,
			struct attribute *,
			struct dwarf2_cu *);

999static struct type *dwarf2_fundamental_type (struct objfile *, int,
			     struct dwarf2_cu *);

1002/* memory allocation interface */

1004static struct dwarf_block *dwarf_alloc_block (struct dwarf2_cu *);

1006static struct abbrev_info *dwarf_alloc_abbrev (struct dwarf2_cu *);

1008static struct die_info *dwarf_alloc_die (void);

1010static void initialize_cu_func_list (struct dwarf2_cu *);

1012static void add_to_cu_func_list (const char *, CORE_ADDR, CORE_ADDR,
		 struct dwarf2_cu *);

1015static void dwarf_decode_macros (struct line_header *, unsigned int,
                               char *, bfd *, struct dwarf2_cu *);

1018static int attr_form_is_block (struct attribute *);

1020static void
1021dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym,
	     struct dwarf2_cu *cu);

1024static char *skip_one_die (char *info_ptr, struct abbrev_info *abbrev,
	   struct dwarf2_cu *cu);

1027static void free_stack_comp_unit (void *);

1029static void *hashtab_obstack_allocate (void *data, size_t size, size_t count);

1031static void dummy_obstack_deallocate (void *object, void *data);

1033static hashval_t partial_die_hash (const void *item);

1035static int partial_die_eq (const void *item_lhs, const void *item_rhs);

1037static struct dwarf2_per_cu_data *dwarf2_find_containing_comp_unit
(unsigned long offset, struct objfile *objfile);

1040static struct dwarf2_per_cu_data *dwarf2_find_comp_unit
(unsigned long offset, struct objfile *objfile);

1043static void free_one_comp_unit (void *);

1045static void free_cached_comp_units (void *);

1047static void age_cached_comp_units (void);

1049static void free_one_cached_comp_unit (void *);

1051static void set_die_type (struct die_info *, struct type *,
	  struct dwarf2_cu *);

1054static void reset_die_and_siblings_types (struct die_info *,
			  struct dwarf2_cu *);

1057static void create_all_comp_units (struct objfile *);

1059static struct dwarf2_cu *load_full_comp_unit (struct dwarf2_per_cu_data *);

1061static void process_full_comp_unit (struct dwarf2_per_cu_data *);

1063static void dwarf2_add_dependence (struct dwarf2_cu *,
		   struct dwarf2_per_cu_data *);

1066static void dwarf2_mark (struct dwarf2_cu *);

1068static void dwarf2_clear_marks (struct dwarf2_per_cu_data *);

1070/* Try to locate the sections we need for DWARF 2 debugging
 information and return true if we have enough to do something.  */

1073int
1074dwarf2_has_info (struct objfile *objfile)
1075{
struct dwarf2_per_objfile *data;

/* Initialize per-objfile state.  */
data = obstack_alloc (&objfile->objfile_obstack, sizeof (*data))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (*data))); if (__o->chunk_limit - __o->next_free
 < __len) _obstack_newchunk (__o, __len); ((__o)->next_free
 += (__len)); (void) 0; }); __extension__ ({ struct obstack *
__o1 = (__h); void *value; value = (void *) __o1->object_base
; if (__o1->next_free == value) __o1->maybe_empty_object
 = 1; __o1->next_free = (((((__o1->next_free) - (char *
) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask
)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk
 > __o1->chunk_limit - (char *)__o1->chunk) __o1->
next_free = __o1->chunk_limit; __o1->object_base = __o1
->next_free; value; }); });
memset (data, 0, sizeof (*data));
set_objfile_data (objfile, dwarf2_objfile_data_key, data);
dwarf2_per_objfile = data;

dwarf_info_section = 0;
dwarf_abbrev_section = 0;
dwarf_line_section = 0;
dwarf_str_section = 0;
dwarf_macinfo_section = 0;
dwarf_frame_section = 0;
dwarf_eh_frame_section = 0;
dwarf_ranges_section = 0;
dwarf_loc_section = 0;

bfd_map_over_sections (objfile->obfd, dwarf2_locate_sections, NULL((void*)0));
return (dwarf_info_section != NULL((void*)0) && dwarf_abbrev_section != NULL((void*)0));
1096}

1098/* This function is mapped across the sections and remembers the
 offset and size of each of the debugging sections we are interested
 in.  */

1102static void
1103dwarf2_locate_sections (bfd *ignore_abfd, asection *sectp, void *ignore_ptr)
1104{
if (strcmp (sectp->name, INFO_SECTION".debug_info") == 0)
  {
    dwarf2_per_objfile->info_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_info_section = sectp;
  }
else if (strcmp (sectp->name, ABBREV_SECTION".debug_abbrev") == 0)
  {
    dwarf2_per_objfile->abbrev_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_abbrev_section = sectp;
  }
else if (strcmp (sectp->name, LINE_SECTION".debug_line") == 0)
  {
    dwarf2_per_objfile->line_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_line_section = sectp;
  }
else if (strcmp (sectp->name, PUBNAMES_SECTION".debug_pubnames") == 0)
  {
    dwarf2_per_objfile->pubnames_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_pubnames_section = sectp;
  }
else if (strcmp (sectp->name, ARANGES_SECTION".debug_aranges") == 0)
  {
    dwarf2_per_objfile->aranges_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_aranges_section = sectp;
  }
else if (strcmp (sectp->name, LOC_SECTION".debug_loc") == 0)
  {
    dwarf2_per_objfile->loc_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_loc_section = sectp;
  }
else if (strcmp (sectp->name, MACINFO_SECTION".debug_macinfo") == 0)
  {
    dwarf2_per_objfile->macinfo_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_macinfo_section = sectp;
  }
else if (strcmp (sectp->name, STR_SECTION".debug_str") == 0)
  {
    dwarf2_per_objfile->str_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_str_section = sectp;
  }
else if (strcmp (sectp->name, FRAME_SECTION".debug_frame") == 0)
  {
    dwarf2_per_objfile->frame_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_frame_section = sectp;
  }
else if (strcmp (sectp->name, EH_FRAME_SECTION".eh_frame") == 0)
  {
    flagword aflag = bfd_get_section_flags (ignore_abfd, sectp)((sectp)->flags + 0);
    if (aflag & SEC_HAS_CONTENTS0x200)
      {
        dwarf2_per_objfile->eh_frame_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
        dwarf_eh_frame_section = sectp;
      }
  }
else if (strcmp (sectp->name, RANGES_SECTION".debug_ranges") == 0)
  {
    dwarf2_per_objfile->ranges_size = bfd_get_section_size (sectp)((sectp)->_raw_size);
    dwarf_ranges_section = sectp;
  }
1164}

1166/* Build a partial symbol table.  */

1168void
1169dwarf2_build_psymtabs (struct objfile *objfile, int mainline)
1170{
/* We definitely need the .debug_info and .debug_abbrev sections */

dwarf2_per_objfile->info_buffer = dwarf2_read_section (objfile, dwarf_info_section);
dwarf2_per_objfile->abbrev_buffer = dwarf2_read_section (objfile, dwarf_abbrev_section);

if (dwarf_line_section)
  dwarf2_per_objfile->line_buffer = dwarf2_read_section (objfile, dwarf_line_section);
else
  dwarf2_per_objfile->line_buffer = NULL((void*)0);

if (dwarf_str_section)
  dwarf2_per_objfile->str_buffer = dwarf2_read_section (objfile, dwarf_str_section);
else
  dwarf2_per_objfile->str_buffer = NULL((void*)0);

if (dwarf_macinfo_section)
  dwarf2_per_objfile->macinfo_buffer = dwarf2_read_section (objfile,
				dwarf_macinfo_section);
else
  dwarf2_per_objfile->macinfo_buffer = NULL((void*)0);

if (dwarf_ranges_section)
  dwarf2_per_objfile->ranges_buffer = dwarf2_read_section (objfile, dwarf_ranges_section);
else
  dwarf2_per_objfile->ranges_buffer = NULL((void*)0);

if (dwarf_loc_section)
  dwarf2_per_objfile->loc_buffer = dwarf2_read_section (objfile, dwarf_loc_section);
else
  dwarf2_per_objfile->loc_buffer = NULL((void*)0);

if (mainline
    || (objfile->global_psymbols.size == 0
 && objfile->static_psymbols.size == 0))
  {
    init_psymbol_list (objfile, 1024);
  }

1209#if 0
if (dwarf_aranges_offset && dwarf_pubnames_offset)
  {
    /* Things are significantly easier if we have .debug_aranges and
       .debug_pubnames sections */

    dwarf2_build_psymtabs_easy (objfile, mainline);
  }
else
1218#endif
  /* only test this case for now */
  {
    /* In this case we have to work a bit harder */
    dwarf2_build_psymtabs_hard (objfile, mainline);
  }
1224}

1226#if 0
1227/* Build the partial symbol table from the information in the
 .debug_pubnames and .debug_aranges sections.  */

1230static void
1231dwarf2_build_psymtabs_easy (struct objfile *objfile, int mainline)
1232{
bfd *abfd = objfile->obfd;
char *aranges_buffer, *pubnames_buffer;
char *aranges_ptr, *pubnames_ptr;
unsigned int entry_length, version, info_offset, info_size;

pubnames_buffer = dwarf2_read_section (objfile,
			 dwarf_pubnames_section);
pubnames_ptr = pubnames_buffer;
while ((pubnames_ptr - pubnames_buffer) < dwarf2_per_objfile->pubnames_size)
  {
    struct comp_unit_head cu_header;
    int bytes_read;

    cu_header.initial_length_size = 0;
    entry_length = read_initial_length (abfd, pubnames_ptr, &cu_header,
                                       &bytes_read);
    pubnames_ptr += bytes_read;
    version = read_1_byte (abfd, pubnames_ptr);
    pubnames_ptr += 1;
    info_offset = read_4_bytes (abfd, pubnames_ptr);
    pubnames_ptr += 4;
    info_size = read_4_bytes (abfd, pubnames_ptr);
    pubnames_ptr += 4;
  }

aranges_buffer = dwarf2_read_section (objfile,
			dwarf_aranges_section);

1261}
1262#endif

1264/* Read in the comp unit header information from the debug_info at
 info_ptr.  */

1267static char *
1268read_comp_unit_head (struct comp_unit_head *cu_header,
     char *info_ptr, bfd *abfd)
1270{
int signed_addr;
int bytes_read;

cu_header->length = read_initial_length (abfd, info_ptr, cu_header,
                                         &bytes_read);
info_ptr += bytes_read;
cu_header->version = read_2_bytes (abfd, info_ptr);
info_ptr += 2;
cu_header->abbrev_offset = read_offset (abfd, info_ptr, cu_header,
                                        &bytes_read);
info_ptr += bytes_read;
cu_header->addr_size = read_1_byte (abfd, info_ptr);
info_ptr += 1;
signed_addr = bfd_get_sign_extend_vma (abfd);
if (signed_addr < 0)
  internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", __LINE__1286,
    "read_comp_unit_head: dwarf from non elf file");
cu_header->signed_addr_p = signed_addr;
return info_ptr;
1290}

1292static char *
1293partial_read_comp_unit_head (struct comp_unit_head *header, char *info_ptr,
	     bfd *abfd)
1295{
char *beg_of_comp_unit = info_ptr;

info_ptr = read_comp_unit_head (header, info_ptr, abfd);

if (header->version != 2)
  error ("Dwarf Error: wrong version in compilation unit header "
  "(is %d, should be %d) [in module %s]", header->version,
  2, bfd_get_filename (abfd)((char *) (abfd)->filename));

if (header->abbrev_offset >= dwarf2_per_objfile->abbrev_size)
  error ("Dwarf Error: bad offset (0x%lx) in compilation unit header "
  "(offset 0x%lx + 6) [in module %s]",
  (long) header->abbrev_offset,
  (long) (beg_of_comp_unit - dwarf2_per_objfile->info_buffer),
  bfd_get_filename (abfd)((char *) (abfd)->filename));

if (beg_of_comp_unit + header->length + header->initial_length_size
    > dwarf2_per_objfile->info_buffer + dwarf2_per_objfile->info_size)
  error ("Dwarf Error: bad length (0x%lx) in compilation unit header "
  "(offset 0x%lx + 0) [in module %s]",
  (long) header->length,
  (long) (beg_of_comp_unit - dwarf2_per_objfile->info_buffer),
  bfd_get_filename (abfd)((char *) (abfd)->filename));

return info_ptr;
1321}

1323/* Allocate a new partial symtab for file named NAME and mark this new
 partial symtab as being an include of PST.  */

1326static void
1327dwarf2_create_include_psymtab (char *name, struct partial_symtab *pst,
                             struct objfile *objfile)
1329{
struct partial_symtab *subpst = allocate_psymtab (name, objfile);

subpst->section_offsets = pst->section_offsets;
subpst->textlow = 0;
subpst->texthigh = 0;

subpst->dependencies = (struct partial_symtab **)
  obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct partial_symtab *))); if (__o->chunk_limit -
 __o->next_free < __len) _obstack_newchunk (__o, __len)
; ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); })
                 sizeof (struct partial_symtab *))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct partial_symtab *))); if (__o->chunk_limit -
 __o->next_free < __len) _obstack_newchunk (__o, __len)
; ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); });
subpst->dependencies[0] = pst;
subpst->number_of_dependencies = 1;

subpst->globals_offset = 0;
subpst->n_global_syms = 0;
subpst->statics_offset = 0;
subpst->n_static_syms = 0;
subpst->symtab = NULL((void*)0);
subpst->read_symtab = pst->read_symtab;
subpst->readin = 0;

/* No private part is necessary for include psymtabs.  This property
   can be used to differentiate between such include psymtabs and
   the regular ones.  */
subpst->read_symtab_private = NULL((void*)0);
1354}

1356/* Read the Line Number Program data and extract the list of files
 included by the source file represented by PST.  Build an include
 partial symtab for each of these included files.
 
 This procedure assumes that there *is* a Line Number Program in
 the given CU.  Callers should check that PDI->HAS_STMT_LIST is set
 before calling this procedure.  */

1364static void
1365dwarf2_build_include_psymtabs (struct dwarf2_cu *cu,
                             struct partial_die_info *pdi,
                             struct partial_symtab *pst)
1368{
struct objfile *objfile = cu->objfile;
bfd *abfd = objfile->obfd;
struct line_header *lh;

lh = dwarf_decode_line_header (pdi->line_offset, abfd, cu);
if (lh == NULL((void*)0))
  return;  /* No linetable, so no includes.  */

dwarf_decode_lines (lh, NULL((void*)0), abfd, cu, pst);

free_line_header (lh);
1380}


1383/* Build the partial symbol table by doing a quick pass through the
 .debug_info and .debug_abbrev sections.  */

1386static void
1387dwarf2_build_psymtabs_hard (struct objfile *objfile, int mainline)
1388{
/* Instead of reading this into a big buffer, we should probably use
   mmap()  on architectures that support it. (FIXME) */
bfd *abfd = objfile->obfd;
char *info_ptr;
char *beg_of_comp_unit;
struct partial_die_info comp_unit_die;
struct partial_symtab *pst;
struct cleanup *back_to;
CORE_ADDR lowpc, highpc, baseaddr;

info_ptr = dwarf2_per_objfile->info_buffer;

/* Any cached compilation units will be linked by the per-objfile
   read_in_chain.  Make sure to free them when we're done.  */
back_to = make_cleanup (free_cached_comp_units, NULL((void*)0));

create_all_comp_units (objfile);

/* Since the objects we're extracting from .debug_info vary in
   length, only the individual functions to extract them (like
   read_comp_unit_head and load_partial_die) can really know whether
   the buffer is large enough to hold another complete object.

   At the moment, they don't actually check that.  If .debug_info
   holds just one extra byte after the last compilation unit's dies,
   then read_comp_unit_head will happily read off the end of the
   buffer.  read_partial_die is similarly casual.  Those functions
   should be fixed.

   For this loop condition, simply checking whether there's any data
   left at all should be sufficient.  */
while (info_ptr < (dwarf2_per_objfile->info_buffer
     + dwarf2_per_objfile->info_size))
  {
    struct cleanup *back_to_inner;
    struct dwarf2_cu cu;
    struct abbrev_info *abbrev;
    unsigned int bytes_read;
    struct dwarf2_per_cu_data *this_cu;

    beg_of_comp_unit = info_ptr;

    memset (&cu, 0, sizeof (cu));

    obstack_init (&cu.comp_unit_obstack)_obstack_begin ((&cu.comp_unit_obstack), 0, 0, (void *(*)
 (long)) xmalloc, (void (*) (void *)) xfree);

    back_to_inner = make_cleanup (free_stack_comp_unit, &cu);

    cu.objfile = objfile;
    info_ptr = partial_read_comp_unit_head (&cu.header, info_ptr, abfd);

    /* Complete the cu_header */
    cu.header.offset = beg_of_comp_unit - dwarf2_per_objfile->info_buffer;
    cu.header.first_die_ptr = info_ptr;
    cu.header.cu_head_ptr = beg_of_comp_unit;

    cu.list_in_scope = &file_symbols;

    /* Read the abbrevs for this compilation unit into a table */
    dwarf2_read_abbrevs (abfd, &cu);
    make_cleanup (dwarf2_free_abbrev_table, &cu);

    this_cu = dwarf2_find_comp_unit (cu.header.offset, objfile);

    /* Read the compilation unit die */
    abbrev = peek_die_abbrev (info_ptr, &bytes_read, &cu);
    info_ptr = read_partial_die (&comp_unit_die, abbrev, bytes_read,
		   abfd, info_ptr, &cu);

    /* Set the language we're debugging */
    set_cu_language (comp_unit_die.language, &cu);

    /* Allocate a new partial symbol table structure */
    pst = start_psymtab_common (objfile, objfile->section_offsets,
		  comp_unit_die.name ? comp_unit_die.name : "",
		  comp_unit_die.lowpc,
		  objfile->global_psymbols.next,
		  objfile->static_psymbols.next);

    if (comp_unit_die.dirname)
pst->dirname = xstrdup (comp_unit_die.dirname);

    pst->read_symtab_private = (char *) this_cu;

    baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 1473, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 1473, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 1473, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);

    /* Store the function that reads in the rest of the symbol table */
    pst->read_symtab = dwarf2_psymtab_to_symtab;

    /* If this compilation unit was already read in, free the
cached copy in order to read it in again.  This is
necessary because we skipped some symbols when we first
read in the compilation unit (see load_partial_dies).
This problem could be avoided, but the benefit is
unclear.  */
    if (this_cu->cu != NULL((void*)0))
free_one_cached_comp_unit (this_cu->cu);

    cu.per_cu = this_cu;

    /* Note that this is a pointer to our stack frame, being
added to a global data structure.  It will be cleaned up
in free_stack_comp_unit when we finish with this
compilation unit.  */
    this_cu->cu = &cu;

    this_cu->psymtab = pst;

    /* Check if comp unit has_children.
       If so, read the rest of the partial symbols from this comp unit.
       If not, there's no more debug_info for this comp unit. */
    if (comp_unit_die.has_children)
{
 struct partial_die_info *first_die;

 lowpc = ((CORE_ADDR) -1);
 highpc = ((CORE_ADDR) 0);

 first_die = load_partial_dies (abfd, info_ptr, 1, &cu);

 scan_partial_symbols (first_die, &lowpc, &highpc, &cu);

 /* If we didn't find a lowpc, set it to highpc to avoid
    complaints from `maint check'.  */
 if (lowpc == ((CORE_ADDR) -1))
   lowpc = highpc;

 /* If the compilation unit didn't have an explicit address range,
    then use the information extracted from its child dies.  */
 if (! comp_unit_die.has_pc_info)
   {
     comp_unit_die.lowpc = lowpc;
     comp_unit_die.highpc = highpc;
   }
}
    pst->textlow = comp_unit_die.lowpc + baseaddr;
    pst->texthigh = comp_unit_die.highpc + baseaddr;

    pst->n_global_syms = objfile->global_psymbols.next -
(objfile->global_psymbols.list + pst->globals_offset);
    pst->n_static_syms = objfile->static_psymbols.next -
(objfile->static_psymbols.list + pst->statics_offset);
    sort_pst_symbols (pst);

    /* If there is already a psymtab or symtab for a file of this
       name, remove it. (If there is a symtab, more drastic things
       also happen.) This happens in VxWorks.  */
    free_named_symtabs (pst->filename);

    info_ptr = beg_of_comp_unit + cu.header.length
                                + cu.header.initial_length_size;

    if (comp_unit_die.has_stmt_list)
      {
        /* Get the list of files included in the current compilation unit,
           and build a psymtab for each of them.  */
        dwarf2_build_include_psymtabs (&cu, &comp_unit_die, pst);
      }

    do_cleanups (back_to_inner);
  }
do_cleanups (back_to);
1551}

1553/* Load the DIEs for a secondary CU into memory.  */

1555static void
1556load_comp_unit (struct dwarf2_per_cu_data *this_cu, struct objfile *objfile)
1557{
bfd *abfd = objfile->obfd;
char *info_ptr, *beg_of_comp_unit;
struct partial_die_info comp_unit_die;
struct dwarf2_cu *cu;
struct abbrev_info *abbrev;
unsigned int bytes_read;
struct cleanup *back_to;

info_ptr = dwarf2_per_objfile->info_buffer + this_cu->offset;
beg_of_comp_unit = info_ptr;

cu = xmalloc (sizeof (struct dwarf2_cu));
memset (cu, 0, sizeof (struct dwarf2_cu));

obstack_init (&cu->comp_unit_obstack)_obstack_begin ((&cu->comp_unit_obstack), 0, 0, (void *
(*) (long)) xmalloc, (void (*) (void *)) xfree);

cu->objfile = objfile;
info_ptr = partial_read_comp_unit_head (&cu->header, info_ptr, abfd);

/* Complete the cu_header.  */
cu->header.offset = beg_of_comp_unit - dwarf2_per_objfile->info_buffer;
cu->header.first_die_ptr = info_ptr;
cu->header.cu_head_ptr = beg_of_comp_unit;

/* Read the abbrevs for this compilation unit into a table.  */
dwarf2_read_abbrevs (abfd, cu);
back_to = make_cleanup (dwarf2_free_abbrev_table, cu);

/* Read the compilation unit die.  */
abbrev = peek_die_abbrev (info_ptr, &bytes_read, cu);
info_ptr = read_partial_die (&comp_unit_die, abbrev, bytes_read,
	       abfd, info_ptr, cu);

/* Set the language we're debugging.  */
set_cu_language (comp_unit_die.language, cu);

/* Link this compilation unit into the compilation unit tree.  */
this_cu->cu = cu;
cu->per_cu = this_cu;

/* Check if comp unit has_children.
   If so, read the rest of the partial symbols from this comp unit.
   If not, there's no more debug_info for this comp unit. */
if (comp_unit_die.has_children)
  load_partial_dies (abfd, info_ptr, 0, cu);

do_cleanups (back_to);
1605}

1607/* Create a list of all compilation units in OBJFILE.  We do this only
 if an inter-comp-unit reference is found; presumably if there is one,
 there will be many, and one will occur early in the .debug_info section.
 So there's no point in building this list incrementally.  */

1612static void
1613create_all_comp_units (struct objfile *objfile)
1614{
int n_allocated;
int n_comp_units;
struct dwarf2_per_cu_data **all_comp_units;
char *info_ptr = dwarf2_per_objfile->info_buffer;

n_comp_units = 0;
n_allocated = 10;
all_comp_units = xmalloc (n_allocated
	    * sizeof (struct dwarf2_per_cu_data *));

while (info_ptr < dwarf2_per_objfile->info_buffer + dwarf2_per_objfile->info_size)
  {
    struct comp_unit_head cu_header;
    char *beg_of_comp_unit;
    struct dwarf2_per_cu_data *this_cu;
    unsigned long offset;
    int bytes_read;

    offset = info_ptr - dwarf2_per_objfile->info_buffer;

    /* Read just enough information to find out where the next
compilation unit is.  */
    cu_header.initial_length_size = 0;
    cu_header.length = read_initial_length (objfile->obfd, info_ptr,
			      &cu_header, &bytes_read);

    /* Save the compilation unit for later lookup.  */
    this_cu = obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct dwarf2_per_cu_data))); if (__o->chunk_limit
 - __o->next_free < __len) _obstack_newchunk (__o, __len
); ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); })
	       sizeof (struct dwarf2_per_cu_data))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct dwarf2_per_cu_data))); if (__o->chunk_limit
 - __o->next_free < __len) _obstack_newchunk (__o, __len
); ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); });
    memset (this_cu, 0, sizeof (*this_cu));
    this_cu->offset = offset;
    this_cu->length = cu_header.length + cu_header.initial_length_size;

    if (n_comp_units == n_allocated)
{
 n_allocated *= 2;
 all_comp_units = xrealloc (all_comp_units,
		     n_allocated
		     * sizeof (struct dwarf2_per_cu_data *));
}
    all_comp_units[n_comp_units++] = this_cu;

    info_ptr = info_ptr + this_cu->length;
  }

dwarf2_per_objfile->all_comp_units
  = obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(n_comp_units * sizeof (struct dwarf2_per_cu_data *))); if (__o
->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); })
     n_comp_units * sizeof (struct dwarf2_per_cu_data *))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(n_comp_units * sizeof (struct dwarf2_per_cu_data *))); if (__o
->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); });
memcpy (dwarf2_per_objfile->all_comp_units, all_comp_units,
 n_comp_units * sizeof (struct dwarf2_per_cu_data *));
xfree (all_comp_units);
dwarf2_per_objfile->n_comp_units = n_comp_units;
1667}

1669/* Process all loaded DIEs for compilation unit CU, starting at FIRST_DIE.
 Also set *LOWPC and *HIGHPC to the lowest and highest PC values found
 in CU.  */

1673static void
1674scan_partial_symbols (struct partial_die_info *first_die, CORE_ADDR *lowpc,
      CORE_ADDR *highpc, struct dwarf2_cu *cu)
1676{
struct objfile *objfile = cu->objfile;
bfd *abfd = objfile->obfd;
struct partial_die_info *pdi;

/* Now, march along the PDI's, descending into ones which have
   interesting children but skipping the children of the other ones,
   until we reach the end of the compilation unit.  */

pdi = first_die;

while (pdi != NULL((void*)0))
  {
    fixup_partial_die (pdi, cu);

    /* Anonymous namespaces have no name but have interesting
children, so we need to look at them.  Ditto for anonymous
enums.  */

    if (pdi->name != NULL((void*)0) || pdi->tag == DW_TAG_namespace
 || pdi->tag == DW_TAG_enumeration_type)
{
 switch (pdi->tag)
   {
   case DW_TAG_subprogram:
     if (pdi->has_pc_info)
{
  if (pdi->lowpc < *lowpc)
    {
      *lowpc = pdi->lowpc;
    }
  if (pdi->highpc > *highpc)
    {
      *highpc = pdi->highpc;
    }
  if (!pdi->is_declaration)
    {
      add_partial_symbol (pdi, cu);
    }
}
     break;
   case DW_TAG_variable:
   case DW_TAG_typedef:
   case DW_TAG_union_type:
     if (!pdi->is_declaration)
{
  add_partial_symbol (pdi, cu);
}
     break;
   case DW_TAG_class_type:
   case DW_TAG_structure_type:
     if (!pdi->is_declaration)
{
  add_partial_symbol (pdi, cu);
}
     break;
   case DW_TAG_enumeration_type:
     if (!pdi->is_declaration)
add_partial_enumeration (pdi, cu);
     break;
   case DW_TAG_base_type:
          case DW_TAG_subrange_type:
     /* File scope base type definitions are added to the partial
        symbol table.  */
     add_partial_symbol (pdi, cu);
     break;
   case DW_TAG_namespace:
     add_partial_namespace (pdi, lowpc, highpc, cu);
     break;
   default:
     break;
   }
}

    /* If the die has a sibling, skip to the sibling.  */

    pdi = pdi->die_sibling;
  }
1754}

1756/* Functions used to compute the fully scoped name of a partial DIE.

 Normally, this is simple.  For C++, the parent DIE's fully scoped
 name is concatenated with "::" and the partial DIE's name.  For
 Java, the same thing occurs except that "." is used instead of "::".
 Enumerators are an exception; they use the scope of their parent
 enumeration type, i.e. the name of the enumeration type is not
 prepended to the enumerator.

 There are two complexities.  One is DW_AT_specification; in this
 case "parent" means the parent of the target of the specification,
 instead of the direct parent of the DIE.  The other is compilers
 which do not emit DW_TAG_namespace; in this case we try to guess
 the fully qualified name of structure types from their members'
 linkage names.  This must be done using the DIE's children rather
 than the children of any DW_AT_specification target.  We only need
 to do this for structures at the top level, i.e. if the target of
 any DW_AT_specification (if any; otherwise the DIE itself) does not
 have a parent.  */

1776/* Compute the scope prefix associated with PDI's parent, in
 compilation unit CU.  The result will be allocated on CU's
 comp_unit_obstack, or a copy of the already allocated PDI->NAME
 field.  NULL is returned if no prefix is necessary.  */
1780static char *
1781partial_die_parent_scope (struct partial_die_info *pdi,
	  struct dwarf2_cu *cu)
1783{
char *grandparent_scope;
struct partial_die_info *parent, *real_pdi;

/* We need to look at our parent DIE; if we have a DW_AT_specification,
   then this means the parent of the specification DIE.  */

real_pdi = pdi;
while (real_pdi->has_specification)
  real_pdi = find_partial_die (real_pdi->spec_offset, cu);

parent = real_pdi->die_parent;
if (parent == NULL((void*)0))
  return NULL((void*)0);

if (parent->scope_set)
  return parent->scope;

fixup_partial_die (parent, cu);

grandparent_scope = partial_die_parent_scope (parent, cu);

if (parent->tag == DW_TAG_namespace
    || parent->tag == DW_TAG_structure_type
    || parent->tag == DW_TAG_class_type
    || parent->tag == DW_TAG_union_type)
  {
    if (grandparent_scope == NULL((void*)0))
parent->scope = parent->name;
    else
parent->scope = typename_concat (&cu->comp_unit_obstack, grandparent_scope,
			 parent->name, cu);
  }
else if (parent->tag == DW_TAG_enumeration_type)
  /* Enumerators should not get the name of the enumeration as a prefix.  */
  parent->scope = grandparent_scope;
else
  {
    /* FIXME drow/2004-04-01: What should we be doing with
function-local names?  For partial symbols, we should probably be
ignoring them.  */
    complaint (&symfile_complaints,
 "unhandled containing DIE tag %d for DIE at %d",
 parent->tag, pdi->offset);
    parent->scope = grandparent_scope;
  }

parent->scope_set = 1;
return parent->scope;
1832}

1834/* Return the fully scoped name associated with PDI, from compilation unit
 CU.  The result will be allocated with malloc.  */
1836static char *
1837partial_die_full_name (struct partial_die_info *pdi,
       struct dwarf2_cu *cu)
1839{
char *parent_scope;

parent_scope = partial_die_parent_scope (pdi, cu);
if (parent_scope == NULL((void*)0))
  return NULL((void*)0);
else
  return typename_concat (NULL((void*)0), parent_scope, pdi->name, cu);
1847}

1849static void
1850add_partial_symbol (struct partial_die_info *pdi, struct dwarf2_cu *cu)
1851{
struct objfile *objfile = cu->objfile;
CORE_ADDR addr = 0;
char *actual_name;
const char *my_prefix;
const struct partial_symbol *psym = NULL((void*)0);
CORE_ADDR baseaddr;
int built_actual_name = 0;

baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 1860, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 1860, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 1860, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);

actual_name = NULL((void*)0);

if (pdi_needs_namespace (pdi->tag))
  {
    actual_name = partial_die_full_name (pdi, cu);
    if (actual_name)
built_actual_name = 1;
  }

if (actual_name == NULL((void*)0))
  actual_name = pdi->name;

switch (pdi->tag)
  {
  case DW_TAG_subprogram:
    if (pdi->is_external)
{
 /*prim_record_minimal_symbol (actual_name, pdi->lowpc + baseaddr,
    mst_text, objfile); */
 psym = add_psymbol_to_list (actual_name, strlen (actual_name),
		      VAR_DOMAIN, LOC_BLOCK,
		      &objfile->global_psymbols,
		      0, pdi->lowpc + baseaddr,
		      cu->language, objfile);
}
    else
{
 /*prim_record_minimal_symbol (actual_name, pdi->lowpc + baseaddr,
    mst_file_text, objfile); */
 psym = add_psymbol_to_list (actual_name, strlen (actual_name),
		      VAR_DOMAIN, LOC_BLOCK,
		      &objfile->static_psymbols,
		      0, pdi->lowpc + baseaddr,
		      cu->language, objfile);
}
    break;
  case DW_TAG_variable:
    if (pdi->is_external)
{
 /* Global Variable.
    Don't enter into the minimal symbol tables as there is
    a minimal symbol table entry from the ELF symbols already.
    Enter into partial symbol table if it has a location
    descriptor or a type.
    If the location descriptor is missing, new_symbol will create
    a LOC_UNRESOLVED symbol, the address of the variable will then
    be determined from the minimal symbol table whenever the variable
    is referenced.
    The address for the partial symbol table entry is not
    used by GDB, but it comes in handy for debugging partial symbol
    table building.  */

 if (pdi->locdesc)
   addr = decode_locdesc (pdi->locdesc, cu);
 if (pdi->locdesc || pdi->has_type)
   psym = add_psymbol_to_list (actual_name, strlen (actual_name),
			VAR_DOMAIN, LOC_STATIC,
			&objfile->global_psymbols,
			0, addr + baseaddr,
			cu->language, objfile);
}
    else
{
 /* Static Variable. Skip symbols without location descriptors.  */
 if (pdi->locdesc == NULL((void*)0))
   return;
 addr = decode_locdesc (pdi->locdesc, cu);
 /*prim_record_minimal_symbol (actual_name, addr + baseaddr,
    mst_file_data, objfile); */
 psym = add_psymbol_to_list (actual_name, strlen (actual_name),
		      VAR_DOMAIN, LOC_STATIC,
		      &objfile->static_psymbols,
		      0, addr + baseaddr,
		      cu->language, objfile);
}
    break;
  case DW_TAG_typedef:
  case DW_TAG_base_type:
  case DW_TAG_subrange_type:
    add_psymbol_to_list (actual_name, strlen (actual_name),
	   VAR_DOMAIN, LOC_TYPEDEF,
	   &objfile->static_psymbols,
	   0, (CORE_ADDR) 0, cu->language, objfile);
    break;
  case DW_TAG_namespace:
    add_psymbol_to_list (actual_name, strlen (actual_name),
	   VAR_DOMAIN, LOC_TYPEDEF,
	   &objfile->global_psymbols,
	   0, (CORE_ADDR) 0, cu->language, objfile);
    break;
  case DW_TAG_class_type:
  case DW_TAG_structure_type:
  case DW_TAG_union_type:
  case DW_TAG_enumeration_type:
    /* Skip aggregate types without children, these are external
       references.  */
    /* NOTE: carlton/2003-10-07: See comment in new_symbol about
static vs. global.  */
    if (pdi->has_children == 0)
return;
    add_psymbol_to_list (actual_name, strlen (actual_name),
	   STRUCT_DOMAIN, LOC_TYPEDEF,
	   (cu->language == language_cplus
	    || cu->language == language_java)
	   ? &objfile->global_psymbols
	   : &objfile->static_psymbols,
	   0, (CORE_ADDR) 0, cu->language, objfile);

    if (cu->language == language_cplus
        || cu->language == language_java)
{
 /* For C++ and Java, these implicitly act as typedefs as well. */
 add_psymbol_to_list (actual_name, strlen (actual_name),
	       VAR_DOMAIN, LOC_TYPEDEF,
	       &objfile->global_psymbols,
	       0, (CORE_ADDR) 0, cu->language, objfile);
}
    break;
  case DW_TAG_enumerator:
    add_psymbol_to_list (actual_name, strlen (actual_name),
	   VAR_DOMAIN, LOC_CONST,
	   (cu->language == language_cplus
	    || cu->language == language_java)
	   ? &objfile->global_psymbols
	   : &objfile->static_psymbols,
	   0, (CORE_ADDR) 0, cu->language, objfile);
    break;
  default:
    break;
  }

/* Check to see if we should scan the name for possible namespace
   info.  Only do this if this is C++, if we don't have namespace
   debugging info in the file, if the psym is of an appropriate type
   (otherwise we'll have psym == NULL), and if we actually had a
   mangled name to begin with.  */

/* FIXME drow/2004-02-22: Why don't we do this for classes, i.e. the
   cases which do not set PSYM above?  */

if (cu->language == language_cplus
    && cu->has_namespace_info == 0
    && psym != NULL((void*)0)
    && SYMBOL_CPLUS_DEMANGLED_NAME (psym)(psym)->ginfo.language_specific.cplus_specific.demangled_name != NULL((void*)0))
  cp_check_possible_namespace_symbols (SYMBOL_CPLUS_DEMANGLED_NAME (psym)(psym)->ginfo.language_specific.cplus_specific.demangled_name,
			 objfile);

if (built_actual_name)
  xfree (actual_name);
2011}

2013/* Determine whether a die of type TAG living in a C++ class or
 namespace needs to have the name of the scope prepended to the
 name listed in the die.  */

2017static int
2018pdi_needs_namespace (enum dwarf_tag tag)
2019{
switch (tag)
  {
  case DW_TAG_namespace:
  case DW_TAG_typedef:
  case DW_TAG_class_type:
  case DW_TAG_structure_type:
  case DW_TAG_union_type:
  case DW_TAG_enumeration_type:
  case DW_TAG_enumerator:
    return 1;
  default:
    return 0;
  }
2033}

2035/* Read a partial die corresponding to a namespace; also, add a symbol
 corresponding to that namespace to the symbol table.  NAMESPACE is
 the name of the enclosing namespace.  */

2039static void
2040add_partial_namespace (struct partial_die_info *pdi,
       CORE_ADDR *lowpc, CORE_ADDR *highpc,
       struct dwarf2_cu *cu)
2043{
struct objfile *objfile = cu->objfile;

/* Add a symbol for the namespace.  */

add_partial_symbol (pdi, cu);

/* Now scan partial symbols in that namespace.  */

if (pdi->has_children)
  scan_partial_symbols (pdi->die_child, lowpc, highpc, cu);
2054}

2056/* See if we can figure out if the class lives in a namespace.  We do
 this by looking for a member function; its demangled name will
 contain namespace info, if there is any.  */

2060static void
2061guess_structure_name (struct partial_die_info *struct_pdi,
      struct dwarf2_cu *cu)
2063{
if ((cu->language == language_cplus
     || cu->language == language_java)
    && cu->has_namespace_info == 0
    && struct_pdi->has_children)
  {
    /* NOTE: carlton/2003-10-07: Getting the info this way changes
what template types look like, because the demangler
frequently doesn't give the same name as the debug info.  We
could fix this by only using the demangled name to get the
prefix (but see comment in read_structure_type).  */

    struct partial_die_info *child_pdi = struct_pdi->die_child;
    struct partial_die_info *real_pdi;

    /* If this DIE (this DIE's specification, if any) has a parent, then
we should not do this.  We'll prepend the parent's fully qualified
       name when we create the partial symbol.  */

    real_pdi = struct_pdi;
    while (real_pdi->has_specification)
real_pdi = find_partial_die (real_pdi->spec_offset, cu);

    if (real_pdi->die_parent != NULL((void*)0))
return;

    while (child_pdi != NULL((void*)0))
{
 if (child_pdi->tag == DW_TAG_subprogram)
   {
     char *actual_class_name
= language_class_name_from_physname (cu->language_defn,
				     child_pdi->name);
     if (actual_class_name != NULL((void*)0))
{
  struct_pdi->name
    = obsavestring (actual_class_name,
		    strlen (actual_class_name),
		    &cu->comp_unit_obstack);
  xfree (actual_class_name);
}
     break;
   }

 child_pdi = child_pdi->die_sibling;
}
  }
2110}

2112/* Read a partial die corresponding to an enumeration type.  */

2114static void
2115add_partial_enumeration (struct partial_die_info *enum_pdi,
	 struct dwarf2_cu *cu)
2117{
struct objfile *objfile = cu->objfile;
bfd *abfd = objfile->obfd;
struct partial_die_info *pdi;

if (enum_pdi->name != NULL((void*)0))
  add_partial_symbol (enum_pdi, cu);

pdi = enum_pdi->die_child;
while (pdi)
  {
    if (pdi->tag != DW_TAG_enumerator || pdi->name == NULL((void*)0))
complaint (&symfile_complaints, "malformed enumerator DIE ignored");
    else
add_partial_symbol (pdi, cu);
    pdi = pdi->die_sibling;
  }
2134}

2136/* Read the initial uleb128 in the die at INFO_PTR in compilation unit CU.
 Return the corresponding abbrev, or NULL if the number is zero (indicating
 an empty DIE).  In either case *BYTES_READ will be set to the length of
 the initial number.  */

2141static struct abbrev_info *
2142peek_die_abbrev (char *info_ptr, int *bytes_read, struct dwarf2_cu *cu)
2143{
bfd *abfd = cu->objfile->obfd;
unsigned int abbrev_number;
struct abbrev_info *abbrev;

abbrev_number = read_unsigned_leb128 (abfd, info_ptr, bytes_read);

if (abbrev_number == 0)
  return NULL((void*)0);

abbrev = dwarf2_lookup_abbrev (abbrev_number, cu);
if (!abbrev)
  {
    error ("Dwarf Error: Could not find abbrev number %d [in module %s]", abbrev_number,
      bfd_get_filename (abfd)((char *) (abfd)->filename));
  }

return abbrev;
2161}

2163/* Scan the debug information for CU starting at INFO_PTR.  Returns a
 pointer to the end of a series of DIEs, terminated by an empty
 DIE.  Any children of the skipped DIEs will also be skipped.  */

2167static char *
2168skip_children (char *info_ptr, struct dwarf2_cu *cu)
2169{
struct abbrev_info *abbrev;
unsigned int bytes_read;

while (1)
  {
    abbrev = peek_die_abbrev (info_ptr, &bytes_read, cu);
    if (abbrev == NULL((void*)0))
return info_ptr + bytes_read;
    else
info_ptr = skip_one_die (info_ptr + bytes_read, abbrev, cu);
  }
2181}

2183/* Scan the debug information for CU starting at INFO_PTR.  INFO_PTR
 should point just after the initial uleb128 of a DIE, and the
 abbrev corresponding to that skipped uleb128 should be passed in
 ABBREV.  Returns a pointer to this DIE's sibling, skipping any
 children.  */

2189static char *
2190skip_one_die (char *info_ptr, struct abbrev_info *abbrev,
     struct dwarf2_cu *cu)
2192{
unsigned int bytes_read;
struct attribute attr;
bfd *abfd = cu->objfile->obfd;
unsigned int form, i;

for (i = 0; i < abbrev->num_attrs; i++)
  {
    /* The only abbrev we care about is DW_AT_sibling.  */
    if (abbrev->attrs[i].name == DW_AT_sibling)
{
 read_attribute (&attr, &abbrev->attrs[i],
	  abfd, info_ptr, cu);
 if (attr.form == DW_FORM_ref_addr)
   complaint (&symfile_complaints, "ignoring absolute DW_AT_sibling");
 else
   return dwarf2_per_objfile->info_buffer
     + dwarf2_get_ref_die_offset (&attr, cu);
}

    /* If it isn't DW_AT_sibling, skip this attribute.  */
    form = abbrev->attrs[i].form;
  skip_attribute:
    switch (form)
{
case DW_FORM_addr:
case DW_FORM_ref_addr:
 info_ptr += cu->header.addr_size;
 break;
case DW_FORM_data1:
case DW_FORM_ref1:
case DW_FORM_flag:
 info_ptr += 1;
 break;
case DW_FORM_data2:
case DW_FORM_ref2:
 info_ptr += 2;
 break;
case DW_FORM_data4:
case DW_FORM_ref4:
 info_ptr += 4;
 break;
case DW_FORM_data8:
case DW_FORM_ref8:
 info_ptr += 8;
 break;
case DW_FORM_string:
 read_string (abfd, info_ptr, &bytes_read);
 info_ptr += bytes_read;
 break;
case DW_FORM_strp:
 info_ptr += cu->header.offset_size;
 break;
case DW_FORM_block:
 info_ptr += read_unsigned_leb128 (abfd, info_ptr, &bytes_read);
 info_ptr += bytes_read;
 break;
case DW_FORM_block1:
 info_ptr += 1 + read_1_byte (abfd, info_ptr);
 break;
case DW_FORM_block2:
 info_ptr += 2 + read_2_bytes (abfd, info_ptr);
 break;
case DW_FORM_block4:
 info_ptr += 4 + read_4_bytes (abfd, info_ptr);
 break;
case DW_FORM_sdata:
case DW_FORM_udata:
case DW_FORM_ref_udata:
 info_ptr = skip_leb128 (abfd, info_ptr);
 break;
case DW_FORM_indirect:
 form = read_unsigned_leb128 (abfd, info_ptr, &bytes_read);
 info_ptr += bytes_read;
 /* We need to continue parsing from here, so just go back to
    the top.  */
 goto skip_attribute;

default:
 error ("Dwarf Error: Cannot handle %s in DWARF reader [in module %s]",
 dwarf_form_name (form),
 bfd_get_filename (abfd)((char *) (abfd)->filename));
}
  }

if (abbrev->has_children)
  return skip_children (info_ptr, cu);
else
  return info_ptr;
2281}

2283/* Locate ORIG_PDI's sibling; INFO_PTR should point to the start of
 the next DIE after ORIG_PDI.  */

2286static char *
2287locate_pdi_sibling (struct partial_die_info *orig_pdi, char *info_ptr,
    bfd *abfd, struct dwarf2_cu *cu)
2289{
/* Do we know the sibling already?  */

if (orig_pdi->sibling)
  return orig_pdi->sibling;

/* Are there any children to deal with?  */

if (!orig_pdi->has_children)
  return info_ptr;

/* Skip the children the long way.  */

return skip_children (info_ptr, cu);
2303}

2305/* Expand this partial symbol table into a full symbol table.  */

2307static void
2308dwarf2_psymtab_to_symtab (struct partial_symtab *pst)
2309{
/* FIXME: This is barely more than a stub.  */
if (pst != NULL((void*)0))
  {
    if (pst->readin)
{
 warning ("bug: psymtab for %s is already read in.", pst->filename);
}
    else
{
 if (info_verbose)
   {
     printf_filtered ("Reading in symbols for %s...", pst->filename);
     gdb_flush (gdb_stdout);
   }

 /* Restore our global data.  */
 dwarf2_per_objfile = objfile_data (pst->objfile,
			     dwarf2_objfile_data_key);

 psymtab_to_symtab_1 (pst);

 /* Finish up the debug error message.  */
 if (info_verbose)
   printf_filtered ("done.\n");
}
  }
2336}

2338/* Add PER_CU to the queue.  */

2340static void
2341queue_comp_unit (struct dwarf2_per_cu_data *per_cu)
2342{
struct dwarf2_queue_item *item;

per_cu->queued = 1;
item = xmalloc (sizeof (*item));
item->per_cu = per_cu;
item->next = NULL((void*)0);

if (dwarf2_queue == NULL((void*)0))
  dwarf2_queue = item;
else
  dwarf2_queue_tail->next = item;

dwarf2_queue_tail = item;
2356}

2358/* Process the queue.  */

2360static void
2361process_queue (struct objfile *objfile)
2362{
struct dwarf2_queue_item *item, *next_item;

/* Initially, there is just one item on the queue.  Load its DIEs,
   and the DIEs of any other compilation units it requires,
   transitively.  */

for (item = dwarf2_queue; item != NULL((void*)0); item = item->next)
  {
    /* Read in this compilation unit.  This may add new items to
the end of the queue.  */
    load_full_comp_unit (item->per_cu);

    item->per_cu->cu->read_in_chain = dwarf2_per_objfile->read_in_chain;
    dwarf2_per_objfile->read_in_chain = item->per_cu;

    /* If this compilation unit has already had full symbols created,
reset the TYPE fields in each DIE.  */
    if (item->per_cu->psymtab->readin)
reset_die_and_siblings_types (item->per_cu->cu->dies,
		      item->per_cu->cu);
  }

/* Now everything left on the queue needs to be read in.  Process
   them, one at a time, removing from the queue as we finish.  */
for (item = dwarf2_queue; item != NULL((void*)0); dwarf2_queue = item = next_item)
  {
    if (!item->per_cu->psymtab->readin)
process_full_comp_unit (item->per_cu);

    item->per_cu->queued = 0;
    next_item = item->next;
    xfree (item);
  }

dwarf2_queue_tail = NULL((void*)0);
2398}

2400/* Free all allocated queue entries.  This function only releases anything if
 an error was thrown; if the queue was processed then it would have been
 freed as we went along.  */

2404static void
2405dwarf2_release_queue (void *dummy)
2406{
struct dwarf2_queue_item *item, *last;

item = dwarf2_queue;
while (item)
  {
    /* Anything still marked queued is likely to be in an
inconsistent state, so discard it.  */
    if (item->per_cu->queued)
{
 if (item->per_cu->cu != NULL((void*)0))
   free_one_cached_comp_unit (item->per_cu->cu);
 item->per_cu->queued = 0;
}

    last = item;
    item = item->next;
    xfree (last);
  }

dwarf2_queue = dwarf2_queue_tail = NULL((void*)0);
2427}

2429/* Read in full symbols for PST, and anything it depends on.  */

2431static void
2432psymtab_to_symtab_1 (struct partial_symtab *pst)
2433{
struct dwarf2_per_cu_data *per_cu;
struct cleanup *back_to;
int i;

for (i = 0; i < pst->number_of_dependencies; i++)
  if (!pst->dependencies[i]->readin)
    {
      /* Inform about additional files that need to be read in.  */
      if (info_verbose)
        {
          fputs_filtered (" ", gdb_stdout);
          wrap_here ("");
          fputs_filtered ("and ", gdb_stdout);
          wrap_here ("");
          printf_filtered ("%s...", pst->dependencies[i]->filename);
          wrap_here ("");     /* Flush output */
          gdb_flush (gdb_stdout);
        }
      psymtab_to_symtab_1 (pst->dependencies[i]);
    }

per_cu = (struct dwarf2_per_cu_data *) pst->read_symtab_private;

if (per_cu == NULL((void*)0))
  {
    /* It's an include file, no symbols to read for it.
       Everything is in the parent symtab.  */
    pst->readin = 1;
    return;
  }

back_to = make_cleanup (dwarf2_release_queue, NULL((void*)0));

queue_comp_unit (per_cu);

process_queue (pst->objfile);

/* Age the cache, releasing compilation units that have not
   been used recently.  */
age_cached_comp_units ();

do_cleanups (back_to);
2476}

2478/* Load the DIEs associated with PST and PER_CU into memory.  */

2480static struct dwarf2_cu *
2481load_full_comp_unit (struct dwarf2_per_cu_data *per_cu)
2482{
struct partial_symtab *pst = per_cu->psymtab;
bfd *abfd = pst->objfile->obfd;
struct dwarf2_cu *cu;
unsigned long offset;
char *info_ptr;
struct cleanup *back_to, *free_cu_cleanup;
struct attribute *attr;
CORE_ADDR baseaddr;

/* Set local variables from the partial symbol table info.  */
offset = per_cu->offset;

info_ptr = dwarf2_per_objfile->info_buffer + offset;

cu = xmalloc (sizeof (struct dwarf2_cu));
memset (cu, 0, sizeof (struct dwarf2_cu));

/* If an error occurs while loading, release our storage.  */
free_cu_cleanup = make_cleanup (free_one_comp_unit, cu);

cu->objfile = pst->objfile;

/* read in the comp_unit header  */
info_ptr = read_comp_unit_head (&cu->header, info_ptr, abfd);

/* Read the abbrevs for this compilation unit  */
dwarf2_read_abbrevs (abfd, cu);
back_to = make_cleanup (dwarf2_free_abbrev_table, cu);

cu->header.offset = offset;

cu->per_cu = per_cu;
per_cu->cu = cu;

/* We use this obstack for block values in dwarf_alloc_block.  */
obstack_init (&cu->comp_unit_obstack)_obstack_begin ((&cu->comp_unit_obstack), 0, 0, (void *
(*) (long)) xmalloc, (void (*) (void *)) xfree);

cu->dies = read_comp_unit (info_ptr, abfd, cu);

/* We try not to read any attributes in this function, because not
   all objfiles needed for references have been loaded yet, and symbol
   table processing isn't initialized.  But we have to set the CU language,
   or we won't be able to build types correctly.  */
attr = dwarf2_attr (cu->dies, DW_AT_language, cu);
if (attr)
  set_cu_language (DW_UNSND (attr)((attr)->u.unsnd), cu);
else
  set_cu_language (language_minimal, cu);

do_cleanups (back_to);

/* We've successfully allocated this compilation unit.  Let our caller
   clean it up when finished with it.  */
discard_cleanups (free_cu_cleanup);

return cu;
2539}

2541/* Generate full symbol information for PST and CU, whose DIEs have
 already been loaded into memory.  */

2544static void
2545process_full_comp_unit (struct dwarf2_per_cu_data *per_cu)
2546{
struct partial_symtab *pst = per_cu->psymtab;
struct dwarf2_cu *cu = per_cu->cu;
struct objfile *objfile = pst->objfile;
bfd *abfd = objfile->obfd;
CORE_ADDR lowpc, highpc;
struct symtab *symtab;
struct cleanup *back_to;
struct attribute *attr;
CORE_ADDR baseaddr;

baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2557, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2557, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2557, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);

/* We're in the global namespace.  */
processing_current_prefix = "";

buildsym_init ();
back_to = make_cleanup (really_free_pendings, NULL((void*)0));

cu->list_in_scope = &file_symbols;

/* Find the base address of the compilation unit for range lists and
   location lists.  It will normally be specified by DW_AT_low_pc.
   In DWARF-3 draft 4, the base address could be overridden by
   DW_AT_entry_pc.  It's been removed, but GCC still uses this for
   compilation units with discontinuous ranges.  */

cu->header.base_known = 0;
cu->header.base_address = 0;

attr = dwarf2_attr (cu->dies, DW_AT_entry_pc, cu);
if (attr)
  {
    cu->header.base_address = DW_ADDR (attr)((attr)->u.addr);
    cu->header.base_known = 1;
  }
else
  {
    attr = dwarf2_attr (cu->dies, DW_AT_low_pc, cu);
    if (attr)
{
 cu->header.base_address = DW_ADDR (attr)((attr)->u.addr);
 cu->header.base_known = 1;
}
  }

/* Do line number decoding in read_file_scope () */
process_die (cu->dies, cu);

/* Some compilers don't define a DW_AT_high_pc attribute for the
   compilation unit.  If the DW_AT_high_pc is missing, synthesize
   it, by scanning the DIE's below the compilation unit.  */
get_scope_pc_bounds (cu->dies, &lowpc, &highpc, cu);

symtab = end_symtab (highpc + baseaddr, objfile, SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2600, "sect_index_text not initialized"), -1) : objfile->
sect_index_text));

/* Set symtab language to language from DW_AT_language.
   If the compilation is from a C file generated by language preprocessors,
   do not set the language if it was already deduced by start_subfile.  */
if (symtab != NULL((void*)0)
    && !(cu->language == language_c && symtab->language != language_c))
  {
    symtab->language = cu->language;
  }
pst->symtab = symtab;
pst->readin = 1;

do_cleanups (back_to);
2614}

2616/* Process a die and its children.  */

2618static void
2619process_die (struct die_info *die, struct dwarf2_cu *cu)
2620{
switch (die->tag)
9
←
Control jumps to 'case DW_TAG_common_block:'  at line 2688→
  {
  case DW_TAG_padding:
    break;
  case DW_TAG_compile_unit:
    read_file_scope (die, cu);
    break;
  case DW_TAG_subprogram:
    read_subroutine_type (die, cu);
    read_func_scope (die, cu);
    break;
  case DW_TAG_inlined_subroutine:
    /* FIXME:  These are ignored for now.
       They could be used to set breakpoints on all inlined instances
       of a function and make GDB `next' properly over inlined functions.  */
    break;
  case DW_TAG_lexical_block:
  case DW_TAG_try_block:
  case DW_TAG_catch_block:
    read_lexical_block_scope (die, cu);
    break;
  case DW_TAG_class_type:
  case DW_TAG_structure_type:
  case DW_TAG_union_type:
    read_structure_type (die, cu);
    process_structure_scope (die, cu);
    break;
  case DW_TAG_enumeration_type:
    read_enumeration_type (die, cu);
    process_enumeration_scope (die, cu);
    break;

  /* FIXME drow/2004-03-14: These initialize die->type, but do not create
     a symbol or process any children.  Therefore it doesn't do anything
     that won't be done on-demand by read_type_die.  */
  case DW_TAG_subroutine_type:
    read_subroutine_type (die, cu);
    break;
  case DW_TAG_array_type:
    read_array_type (die, cu);
    break;
  case DW_TAG_pointer_type:
    read_tag_pointer_type (die, cu);
    break;
  case DW_TAG_ptr_to_member_type:
    read_tag_ptr_to_member_type (die, cu);
    break;
  case DW_TAG_reference_type:
    read_tag_reference_type (die, cu);
    break;
  case DW_TAG_string_type:
    read_tag_string_type (die, cu);
    break;
  /* END FIXME */

  case DW_TAG_base_type:
    read_base_type (die, cu);
    /* Add a typedef symbol for the type definition, if it has a
DW_AT_name.  */
    new_symbol (die, die->type, cu);
    break;
  case DW_TAG_subrange_type:
    read_subrange_type (die, cu);
    /* Add a typedef symbol for the type definition, if it has a
       DW_AT_name.  */
    new_symbol (die, die->type, cu);
    break;
  case DW_TAG_common_block:
    read_common_block (die, cu);
10
←
Calling 'read_common_block'→
    break;
  case DW_TAG_common_inclusion:
    break;
  case DW_TAG_namespace:
    processing_has_namespace_info = 1;
    read_namespace (die, cu);
    break;
  case DW_TAG_imported_declaration:
  case DW_TAG_imported_module:
    /* FIXME: carlton/2002-10-16: Eventually, we should use the
information contained in these.  DW_TAG_imported_declaration
dies shouldn't have children; DW_TAG_imported_module dies
shouldn't in the C++ case, but conceivably could in the
Fortran case, so we'll have to replace this gdb_assert if
Fortran compilers start generating that info.  */
    processing_has_namespace_info = 1;
    gdb_assert (die->child == NULL)((void) ((die->child == ((void*)0)) ? 0 : (internal_error (
"/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", 2706, "%s: Assertion `%s' failed."
, __PRETTY_FUNCTION__, "die->child == NULL"), 0)));
    break;
  default:
    new_symbol (die, NULL((void*)0), cu);
    break;
  }
2712}

2714static void
2715initialize_cu_func_list (struct dwarf2_cu *cu)
2716{
cu->first_fn = cu->last_fn = cu->cached_fn = NULL((void*)0);
2718}

2720static void
2721read_file_scope (struct die_info *die, struct dwarf2_cu *cu)
2722{
struct objfile *objfile = cu->objfile;
struct comp_unit_head *cu_header = &cu->header;
struct cleanup *back_to = make_cleanup (null_cleanup, 0);
CORE_ADDR lowpc = ((CORE_ADDR) -1);
CORE_ADDR highpc = ((CORE_ADDR) 0);
struct attribute *attr;
char *name = "<unknown>";
char *comp_dir = NULL((void*)0);
struct die_info *child_die;
bfd *abfd = objfile->obfd;
struct line_header *line_header = 0;
CORE_ADDR baseaddr;

baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2736, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2736, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2736, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);

get_scope_pc_bounds (die, &lowpc, &highpc, cu);

/* If we didn't find a lowpc, set it to highpc to avoid complaints
   from finish_block.  */
if (lowpc == ((CORE_ADDR) -1))
  lowpc = highpc;
lowpc += baseaddr;
highpc += baseaddr;

attr = dwarf2_attr (die, DW_AT_name, cu);
if (attr)
  {
    name = DW_STRING (attr)((attr)->u.str);
  }
attr = dwarf2_attr (die, DW_AT_comp_dir, cu);
if (attr)
  {
    comp_dir = DW_STRING (attr)((attr)->u.str);
    if (comp_dir)
{
 /* Irix 6.2 native cc prepends <machine>.: to the compilation
    directory, get rid of it.  */
 char *cp = strchr (comp_dir, ':');

 if (cp && cp != comp_dir && cp[-1] == '.' && cp[1] == '/')
   comp_dir = cp + 1;
}
  }

attr = dwarf2_attr (die, DW_AT_language, cu);
if (attr)
  {
    set_cu_language (DW_UNSND (attr)((attr)->u.unsnd), cu);
  }

attr = dwarf2_attr (die, DW_AT_producer, cu);
if (attr) 
  cu->producer = DW_STRING (attr)((attr)->u.str);

/* We assume that we're processing GCC output. */
processing_gcc_compilation = 2;
2779#if 0
/* FIXME:Do something here.  */
if (dip->at_producer != NULL((void*)0))
  {
    handle_producer (dip->at_producer);
  }
2785#endif

/* The compilation unit may be in a different language or objfile,
   zero out all remembered fundamental types.  */
memset (cu->ftypes, 0, FT_NUM_MEMBERS29 * sizeof (struct type *));

start_symtab (name, comp_dir, lowpc);
record_debugformat ("DWARF 2");

initialize_cu_func_list (cu);

/* Process all dies in compilation unit.  */
if (die->child != NULL((void*)0))
  {
    child_die = die->child;
    while (child_die && child_die->tag)
{
 process_die (child_die, cu);
 child_die = sibling_die (child_die);
}
  }

/* Decode line number information if present.  */
attr = dwarf2_attr (die, DW_AT_stmt_list, cu);
if (attr)
  {
    unsigned int line_offset = DW_UNSND (attr)((attr)->u.unsnd);
    line_header = dwarf_decode_line_header (line_offset, abfd, cu);
    if (line_header)
      {
        make_cleanup ((make_cleanup_ftype *) free_line_header,
                      (void *) line_header);
        dwarf_decode_lines (line_header, comp_dir, abfd, cu, NULL((void*)0));
      }
  }

/* Decode macro information, if present.  Dwarf 2 macro information
   refers to information in the line number info statement program
   header, so we can only read it if we've read the header
   successfully.  */
attr = dwarf2_attr (die, DW_AT_macro_info, cu);
if (attr && line_header)
  {
    unsigned int macro_offset = DW_UNSND (attr)((attr)->u.unsnd);
    dwarf_decode_macros (line_header, macro_offset,
                         comp_dir, abfd, cu);
  }
do_cleanups (back_to);
2833}

2835static void
2836add_to_cu_func_list (const char *name, CORE_ADDR lowpc, CORE_ADDR highpc,
     struct dwarf2_cu *cu)
2838{
struct function_range *thisfn;

thisfn = (struct function_range *)
  obstack_alloc (&cu->comp_unit_obstack, sizeof (struct function_range))__extension__ ({ struct obstack *__h = (&cu->comp_unit_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct function_range))); if (__o->chunk_limit - __o
->next_free < __len) _obstack_newchunk (__o, __len); ((
__o)->next_free += (__len)); (void) 0; }); __extension__ (
{ struct obstack *__o1 = (__h); void *value; value = (void *)
 __o1->object_base; if (__o1->next_free == value) __o1->
maybe_empty_object = 1; __o1->next_free = (((((__o1->next_free
) - (char *) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask
)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk
 > __o1->chunk_limit - (char *)__o1->chunk) __o1->
next_free = __o1->chunk_limit; __o1->object_base = __o1
->next_free; value; }); });
thisfn->name = name;
thisfn->lowpc = lowpc;
thisfn->highpc = highpc;
thisfn->seen_line = 0;
thisfn->next = NULL((void*)0);

if (cu->last_fn == NULL((void*)0))
    cu->first_fn = thisfn;
else
    cu->last_fn->next = thisfn;

cu->last_fn = thisfn;
2855}

2857static void
2858read_func_scope (struct die_info *die, struct dwarf2_cu *cu)
2859{
struct objfile *objfile = cu->objfile;
struct context_stack *new;
CORE_ADDR lowpc;
CORE_ADDR highpc;
struct die_info *child_die;
struct attribute *attr;
char *name;
const char *previous_prefix = processing_current_prefix;
struct cleanup *back_to = NULL((void*)0);
CORE_ADDR baseaddr;

baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2871, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2871, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2871, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);

name = dwarf2_linkage_name (die, cu);

/* Ignore functions with missing or empty names and functions with
   missing or invalid low and high pc attributes.  */
if (name == NULL((void*)0) || !dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu))
  return;

if (cu->language == language_cplus
    || cu->language == language_java)
  {
    struct die_info *spec_die = die_specification (die, cu);

    /* NOTE: carlton/2004-01-23: We have to be careful in the
       presence of DW_AT_specification.  For example, with GCC 3.4,
       given the code

         namespace N {
           void foo() {
             // Definition of N::foo.
           }
         }

       then we'll have a tree of DIEs like this:

       1: DW_TAG_compile_unit
         2: DW_TAG_namespace        // N
           3: DW_TAG_subprogram     // declaration of N::foo
         4: DW_TAG_subprogram       // definition of N::foo
              DW_AT_specification   // refers to die #3

       Thus, when processing die #4, we have to pretend that we're
       in the context of its DW_AT_specification, namely the contex
       of die #3.  */

    if (spec_die != NULL((void*)0))
{
 char *specification_prefix = determine_prefix (spec_die, cu);
 processing_current_prefix = specification_prefix;
 back_to = make_cleanup (xfree, specification_prefix);
}
  }

lowpc += baseaddr;
highpc += baseaddr;

/* Record the function range for dwarf_decode_lines.  */
add_to_cu_func_list (name, lowpc, highpc, cu);

new = push_context (0, lowpc);
new->name = new_symbol (die, die->type, cu);

/* If there is a location expression for DW_AT_frame_base, record
   it.  */
attr = dwarf2_attr (die, DW_AT_frame_base, cu);
if (attr)
  /* FIXME: cagney/2004-01-26: The DW_AT_frame_base's location
     expression is being recorded directly in the function's symbol
     and not in a separate frame-base object.  I guess this hack is
     to avoid adding some sort of frame-base adjunct/annex to the
     function's symbol :-(.  The problem with doing this is that it
     results in a function symbol with a location expression that
     has nothing to do with the location of the function, ouch!  The
     relationship should be: a function's symbol has-a frame base; a
     frame-base has-a location expression.  */
  dwarf2_symbol_mark_computed (attr, new->name, cu);

cu->list_in_scope = &local_symbols;

if (die->child != NULL((void*)0))
  {
    child_die = die->child;
    while (child_die && child_die->tag)
{
 process_die (child_die, cu);
 child_die = sibling_die (child_die);
}
  }

new = pop_context ();
/* Make a block for the local symbols within.  */
finish_block (new->name, &local_symbols, new->old_blocks,
lowpc, highpc, objfile);

/* In C++, we can have functions nested inside functions (e.g., when
   a function declares a class that has methods).  This means that
   when we finish processing a function scope, we may need to go
   back to building a containing block's symbol lists.  */
local_symbols = new->locals;
param_symbols = new->params;

/* If we've finished processing a top-level function, subsequent
   symbols go in the file symbol list.  */
if (outermost_context_p ()(context_stack_depth == 0))
  cu->list_in_scope = &file_symbols;

processing_current_prefix = previous_prefix;
if (back_to != NULL((void*)0))
  do_cleanups (back_to);
2971}

2973/* Process all the DIES contained within a lexical block scope.  Start
 a new scope, process the dies, and then close the scope.  */

2976static void
2977read_lexical_block_scope (struct die_info *die, struct dwarf2_cu *cu)
2978{
struct objfile *objfile = cu->objfile;
struct context_stack *new;
CORE_ADDR lowpc, highpc;
struct die_info *child_die;
CORE_ADDR baseaddr;

baseaddr = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2985, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2985, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 2985, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);

/* Ignore blocks with missing or invalid low and high pc attributes.  */
/* ??? Perhaps consider discontiguous blocks defined by DW_AT_ranges
   as multiple lexical blocks?  Handling children in a sane way would
   be nasty.  Might be easier to properly extend generic blocks to 
   describe ranges.  */
if (!dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu))
  return;
lowpc += baseaddr;
highpc += baseaddr;

push_context (0, lowpc);
if (die->child != NULL((void*)0))
  {
    child_die = die->child;
    while (child_die && child_die->tag)
{
 process_die (child_die, cu);
 child_die = sibling_die (child_die);
}
  }
new = pop_context ();

if (local_symbols != NULL((void*)0))
  {
    finish_block (0, &local_symbols, new->old_blocks, new->start_addr,
    highpc, objfile);
  }
local_symbols = new->locals;
3015}

3017/* Get low and high pc attributes from a die.  Return 1 if the attributes
 are present and valid, otherwise, return 0.  Return -1 if the range is
 discontinuous, i.e. derived from DW_AT_ranges information.  */
3020static int
3021dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
      CORE_ADDR *highpc, struct dwarf2_cu *cu)
3023{
struct objfile *objfile = cu->objfile;
struct comp_unit_head *cu_header = &cu->header;
struct attribute *attr;
bfd *obfd = objfile->obfd;
CORE_ADDR low = 0;
CORE_ADDR high = 0;
int ret = 0;

attr = dwarf2_attr (die, DW_AT_high_pc, cu);
if (attr)
  {
    high = DW_ADDR (attr)((attr)->u.addr);
    attr = dwarf2_attr (die, DW_AT_low_pc, cu);
    if (attr)
low = DW_ADDR (attr)((attr)->u.addr);
    else
/* Found high w/o low attribute.  */
return 0;

    /* Found consecutive range of addresses.  */
    ret = 1;
  }
else
  {
    attr = dwarf2_attr (die, DW_AT_ranges, cu);
    if (attr != NULL((void*)0))
{
 unsigned int addr_size = cu_header->addr_size;
 CORE_ADDR mask = ~(~(CORE_ADDR)1 << (addr_size * 8 - 1));
 /* Value of the DW_AT_ranges attribute is the offset in the
    .debug_ranges section.  */
 unsigned int offset = DW_UNSND (attr)((attr)->u.unsnd);
 /* Base address selection entry.  */
 CORE_ADDR base;
 int found_base;
 int dummy;
 char *buffer;
 CORE_ADDR marker;
 int low_set;

 found_base = cu_header->base_known;
 base = cu_header->base_address;

 if (offset >= dwarf2_per_objfile->ranges_size)
   {
     complaint (&symfile_complaints,
                "Offset %d out of bounds for DW_AT_ranges attribute",
	 offset);
     return 0;
   }
 buffer = dwarf2_per_objfile->ranges_buffer + offset;

 /* Read in the largest possible address.  */
 marker = read_address (obfd, buffer, cu, &dummy);
 if ((marker & mask) == mask)
   {
     /* If we found the largest possible address, then
 read the base address.  */
     base = read_address (obfd, buffer + addr_size, cu, &dummy);
     buffer += 2 * addr_size;
     offset += 2 * addr_size;
     found_base = 1;
   }

 low_set = 0;

 while (1)
   {
     CORE_ADDR range_beginning, range_end;

     range_beginning = read_address (obfd, buffer, cu, &dummy);
     buffer += addr_size;
     range_end = read_address (obfd, buffer, cu, &dummy);
     buffer += addr_size;
     offset += 2 * addr_size;

     /* An end of list marker is a pair of zero addresses.  */
     if (range_beginning == 0 && range_end == 0)
/* Found the end of list entry.  */
break;

     /* Each base address selection entry is a pair of 2 values.
 The first is the largest possible address, the second is
 the base address.  Check for a base address here.  */
     if ((range_beginning & mask) == mask)
{
  /* If we found the largest possible address, then
     read the base address.  */
  base = read_address (obfd, buffer + addr_size, cu, &dummy);
  found_base = 1;
  continue;
}

     if (!found_base)
{
  /* We have no valid base address for the ranges
     data.  */
  complaint (&symfile_complaints,
	     "Invalid .debug_ranges data (no base address)");
  return 0;
}

     range_beginning += base;
     range_end += base;

     /* FIXME: This is recording everything as a low-high
 segment of consecutive addresses.  We should have a
 data structure for discontiguous block ranges
 instead.  */
     if (! low_set)
{
  low = range_beginning;
  high = range_end;
  low_set = 1;
}
     else
{
  if (range_beginning < low)
    low = range_beginning;
  if (range_end > high)
    high = range_end;
}
   }

 if (! low_set)
   /* If the first entry is an end-of-list marker, the range
      describes an empty scope, i.e. no instructions.  */
   return 0;

 ret = -1;
}
  }

if (high < low)
  return 0;

/* When using the GNU linker, .gnu.linkonce. sections are used to
   eliminate duplicate copies of functions and vtables and such.
   The linker will arbitrarily choose one and discard the others.
   The AT_*_pc values for such functions refer to local labels in
   these sections.  If the section from that file was discarded, the
   labels are not in the output, so the relocs get a value of 0.
   If this is a discarded function, mark the pc bounds as invalid,
   so that GDB will ignore it.  */
if (low == 0 && (bfd_get_file_flags (obfd)((obfd)->flags) & HAS_RELOC0x01) == 0)
  return 0;

*lowpc = low;
*highpc = high;
return ret;
3174}

3176/* Get the low and high pc's represented by the scope DIE, and store
 them in *LOWPC and *HIGHPC.  If the correct values can't be
 determined, set *LOWPC to -1 and *HIGHPC to 0.  */

3180static void
3181get_scope_pc_bounds (struct die_info *die,
     CORE_ADDR *lowpc, CORE_ADDR *highpc,
     struct dwarf2_cu *cu)
3184{
CORE_ADDR best_low = (CORE_ADDR) -1;
CORE_ADDR best_high = (CORE_ADDR) 0;
CORE_ADDR current_low, current_high;

if (dwarf2_get_pc_bounds (die, &current_low, &current_high, cu))
  {
    best_low = current_low;
    best_high = current_high;
  }
else
  {
    struct die_info *child = die->child;

    while (child && child->tag)
{
 switch (child->tag) {
 case DW_TAG_subprogram:
   if (dwarf2_get_pc_bounds (child, &current_low, &current_high, cu))
     {
best_low = min (best_low, current_low)((best_low) < (current_low) ? (best_low) : (current_low));
best_high = max (best_high, current_high)((best_high) > (current_high) ? (best_high) : (current_high
));
     }
   break;
 case DW_TAG_namespace:
   /* FIXME: carlton/2004-01-16: Should we do this for
      DW_TAG_class_type/DW_TAG_structure_type, too?  I think
      that current GCC's always emit the DIEs corresponding
      to definitions of methods of classes as children of a
      DW_TAG_compile_unit or DW_TAG_namespace (as opposed to
      the DIEs giving the declarations, which could be
      anywhere).  But I don't see any reason why the
      standards says that they have to be there.  */
   get_scope_pc_bounds (child, &current_low, &current_high, cu);

   if (current_low != ((CORE_ADDR) -1))
     {
best_low = min (best_low, current_low)((best_low) < (current_low) ? (best_low) : (current_low));
best_high = max (best_high, current_high)((best_high) > (current_high) ? (best_high) : (current_high
));
     }
   break;
 default:
   /* Ignore. */
   break;
 }

 child = sibling_die (child);
}
  }

*lowpc = best_low;
*highpc = best_high;
3236}

3238/* Add an aggregate field to the field list.  */

3240static void
3241dwarf2_add_field (struct field_info *fip, struct die_info *die,
  struct dwarf2_cu *cu)
3243{ 
struct objfile *objfile = cu->objfile;
struct nextfield *new_field;
struct attribute *attr;
struct field *fp;
char *fieldname = "";

/* Allocate a new field list entry and link it in.  */
new_field = (struct nextfield *) xmalloc (sizeof (struct nextfield));
make_cleanup (xfree, new_field);
memset (new_field, 0, sizeof (struct nextfield));
new_field->next = fip->fields;
fip->fields = new_field;
fip->nfields++;

/* Handle accessibility and virtuality of field.
   The default accessibility for members is public, the default
   accessibility for inheritance is private.  */
if (die->tag != DW_TAG_inheritance)
  new_field->accessibility = DW_ACCESS_public;
else
  new_field->accessibility = DW_ACCESS_private;
new_field->virtuality = DW_VIRTUALITY_none;

attr = dwarf2_attr (die, DW_AT_accessibility, cu);
if (attr)
  new_field->accessibility = DW_UNSND (attr)((attr)->u.unsnd);
if (new_field->accessibility != DW_ACCESS_public)
  fip->non_public_fields = 1;
attr = dwarf2_attr (die, DW_AT_virtuality, cu);
if (attr)
  new_field->virtuality = DW_UNSND (attr)((attr)->u.unsnd);

fp = &new_field->field;

if (die->tag == DW_TAG_member && ! die_is_declaration (die, cu))
  {
    /* Data member other than a C++ static data member.  */
    
    /* Get type of field.  */
    fp->type = die_type (die, cu);

    FIELD_STATIC_KIND (*fp)((*fp).static_kind) = 0;

    /* Get bit size of field (zero if none).  */
    attr = dwarf2_attr (die, DW_AT_bit_size, cu);
    if (attr)
{
 FIELD_BITSIZE (*fp)((*fp).bitsize) = DW_UNSND (attr)((attr)->u.unsnd);
}
    else
{
 FIELD_BITSIZE (*fp)((*fp).bitsize) = 0;
}

    /* Get bit offset of field.  */
    attr = dwarf2_attr (die, DW_AT_data_member_location, cu);
    if (attr)
{
 FIELD_BITPOS (*fp)((*fp).loc.bitpos) =
   decode_locdesc (DW_BLOCK (attr)((attr)->u.blk), cu) * bits_per_byte;
}
    else
FIELD_BITPOS (*fp)((*fp).loc.bitpos) = 0;
    attr = dwarf2_attr (die, DW_AT_bit_offset, cu);
    if (attr)
{
 if (BITS_BIG_ENDIAN((gdbarch_byte_order (current_gdbarch)) == BFD_ENDIAN_BIG))
   {
     /* For big endian bits, the DW_AT_bit_offset gives the
        additional bit offset from the MSB of the containing
        anonymous object to the MSB of the field.  We don't
        have to do anything special since we don't need to
        know the size of the anonymous object.  */
     FIELD_BITPOS (*fp)((*fp).loc.bitpos) += DW_UNSND (attr)((attr)->u.unsnd);
   }
 else
   {
     /* For little endian bits, compute the bit offset to the
        MSB of the anonymous object, subtract off the number of
        bits from the MSB of the field to the MSB of the
        object, and then subtract off the number of bits of
        the field itself.  The result is the bit offset of
        the LSB of the field.  */
     int anonymous_size;
     int bit_offset = DW_UNSND (attr)((attr)->u.unsnd);

     attr = dwarf2_attr (die, DW_AT_byte_size, cu);
     if (attr)
{
  /* The size of the anonymous object containing
     the bit field is explicit, so use the
     indicated size (in bytes).  */
  anonymous_size = DW_UNSND (attr)((attr)->u.unsnd);
}
     else
{
  /* The size of the anonymous object containing
     the bit field must be inferred from the type
     attribute of the data member containing the
     bit field.  */
  anonymous_size = TYPE_LENGTH (fp->type)(fp->type)->length;
}
     FIELD_BITPOS (*fp)((*fp).loc.bitpos) += anonymous_size * bits_per_byte
- bit_offset - FIELD_BITSIZE (*fp)((*fp).bitsize);
   }
}

    /* Get name of field.  */
    attr = dwarf2_attr (die, DW_AT_name, cu);
    if (attr && DW_STRING (attr)((attr)->u.str))
fieldname = DW_STRING (attr)((attr)->u.str);

    /* The name is already allocated along with this objfile, so we don't
need to duplicate it for the type.  */
    fp->name = fieldname;

    /* Change accessibility for artificial fields (e.g. virtual table
       pointer or virtual base class pointer) to private.  */
    if (dwarf2_attr (die, DW_AT_artificial, cu))
{
 new_field->accessibility = DW_ACCESS_private;
 fip->non_public_fields = 1;
}
  }
else if (die->tag == DW_TAG_member || die->tag == DW_TAG_variable)
  {
    /* C++ static member.  */

    /* NOTE: carlton/2002-11-05: It should be a DW_TAG_member that
is a declaration, but all versions of G++ as of this writing
(so through at least 3.2.1) incorrectly generate
DW_TAG_variable tags.  */
    
    char *physname;

    /* Get name of field.  */
    attr = dwarf2_attr (die, DW_AT_name, cu);
    if (attr && DW_STRING (attr)((attr)->u.str))
fieldname = DW_STRING (attr)((attr)->u.str);
    else
return;

    /* Get physical name.  */
    physname = dwarf2_linkage_name (die, cu);

    /* The name is already allocated along with this objfile, so we don't
need to duplicate it for the type.  */
    SET_FIELD_PHYSNAME (*fp, physname ? physname : "")((*fp).static_kind = 1, ((*fp).loc.physname) = (physname ? physname
 : ""));
    FIELD_TYPE (*fp)((*fp).type) = die_type (die, cu);
    FIELD_NAME (*fp)((*fp).name) = fieldname;
  }
else if (die->tag == DW_TAG_inheritance)
  {
    /* C++ base class field.  */
    attr = dwarf2_attr (die, DW_AT_data_member_location, cu);
    if (attr)
FIELD_BITPOS (*fp)((*fp).loc.bitpos) = (decode_locdesc (DW_BLOCK (attr)((attr)->u.blk), cu)
	      * bits_per_byte);
    FIELD_BITSIZE (*fp)((*fp).bitsize) = 0;
    FIELD_STATIC_KIND (*fp)((*fp).static_kind) = 0;
    FIELD_TYPE (*fp)((*fp).type) = die_type (die, cu);
    FIELD_NAME (*fp)((*fp).name) = type_name_no_tag (fp->type);
    fip->nbaseclasses++;
  }
3408}

3410/* Create the vector of fields, and attach it to the type.  */

3412static void
3413dwarf2_attach_fields_to_type (struct field_info *fip, struct type *type,
	      struct dwarf2_cu *cu)
3415{
int nfields = fip->nfields;

/* Record the field count, allocate space for the array of fields,
   and create blank accessibility bitfields if necessary.  */
TYPE_NFIELDS (type)(type)->main_type->nfields = nfields;
TYPE_FIELDS (type)(type)->main_type->fields = (struct field *)
  TYPE_ALLOC (type, sizeof (struct field) * nfields)((type)->main_type->objfile != ((void*)0) ? __extension__
 ({ struct obstack *__h = (&(type)->main_type->objfile
 -> objfile_obstack); __extension__ ({ struct obstack *__o
 = (__h); int __len = ((sizeof (struct field) * nfields)); if
 (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); }) : xmalloc
 (sizeof (struct field) * nfields));
memset (TYPE_FIELDS (type)(type)->main_type->fields, 0, sizeof (struct field) * nfields);

if (fip->non_public_fields)
  {
    ALLOCATE_CPLUS_STRUCT_TYPE (type)allocate_cplus_struct_type (type);

    TYPE_FIELD_PRIVATE_BITS (type)(type)->main_type->type_specific.cplus_stuff->private_field_bits =
(B_TYPEunsigned char *) TYPE_ALLOC (type, B_BYTES (nfields))((type)->main_type->objfile != ((void*)0) ? __extension__
 ({ struct obstack *__h = (&(type)->main_type->objfile
 -> objfile_obstack); __extension__ ({ struct obstack *__o
 = (__h); int __len = ((( 1 + ((nfields)>>3) ))); if (__o
->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); }) : xmalloc
 (( 1 + ((nfields)>>3) )));
    B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type), nfields)memset (((type)->main_type->type_specific.cplus_stuff->
private_field_bits), 0, ( 1 + ((nfields)>>3) ));

    TYPE_FIELD_PROTECTED_BITS (type)(type)->main_type->type_specific.cplus_stuff->protected_field_bits =
(B_TYPEunsigned char *) TYPE_ALLOC (type, B_BYTES (nfields))((type)->main_type->objfile != ((void*)0) ? __extension__
 ({ struct obstack *__h = (&(type)->main_type->objfile
 -> objfile_obstack); __extension__ ({ struct obstack *__o
 = (__h); int __len = ((( 1 + ((nfields)>>3) ))); if (__o
->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); }) : xmalloc
 (( 1 + ((nfields)>>3) )));
    B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type), nfields)memset (((type)->main_type->type_specific.cplus_stuff->
protected_field_bits), 0, ( 1 + ((nfields)>>3) ));

    TYPE_FIELD_IGNORE_BITS (type)(type)->main_type->type_specific.cplus_stuff->ignore_field_bits =
(B_TYPEunsigned char *) TYPE_ALLOC (type, B_BYTES (nfields))((type)->main_type->objfile != ((void*)0) ? __extension__
 ({ struct obstack *__h = (&(type)->main_type->objfile
 -> objfile_obstack); __extension__ ({ struct obstack *__o
 = (__h); int __len = ((( 1 + ((nfields)>>3) ))); if (__o
->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); }) : xmalloc
 (( 1 + ((nfields)>>3) )));
    B_CLRALL (TYPE_FIELD_IGNORE_BITS (type), nfields)memset (((type)->main_type->type_specific.cplus_stuff->
ignore_field_bits), 0, ( 1 + ((nfields)>>3) ));
  }

/* If the type has baseclasses, allocate and clear a bit vector for
   TYPE_FIELD_VIRTUAL_BITS.  */
if (fip->nbaseclasses)
  {
    int num_bytes = B_BYTES (fip->nbaseclasses)( 1 + ((fip->nbaseclasses)>>3) );
    char *pointer;

    ALLOCATE_CPLUS_STRUCT_TYPE (type)allocate_cplus_struct_type (type);
    pointer = (char *) TYPE_ALLOC (type, num_bytes)((type)->main_type->objfile != ((void*)0) ? __extension__
 ({ struct obstack *__h = (&(type)->main_type->objfile
 -> objfile_obstack); __extension__ ({ struct obstack *__o
 = (__h); int __len = ((num_bytes)); if (__o->chunk_limit -
 __o->next_free < __len) _obstack_newchunk (__o, __len)
; ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); }) : xmalloc (num_bytes
));
    TYPE_FIELD_VIRTUAL_BITS (type)(type)->main_type->type_specific.cplus_stuff->virtual_field_bits = (B_TYPEunsigned char *) pointer;
    B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), fip->nbaseclasses)memset (((type)->main_type->type_specific.cplus_stuff->
virtual_field_bits), 0, ( 1 + ((fip->nbaseclasses)>>
3) ));
    TYPE_N_BASECLASSES (type)(type)->main_type->type_specific.cplus_stuff->n_baseclasses = fip->nbaseclasses;
  }

/* Copy the saved-up fields into the field vector.  Start from the head
   of the list, adding to the tail of the field array, so that they end
   up in the same order in the array in which they were added to the list.  */
while (nfields-- > 0)
  {
    TYPE_FIELD (type, nfields)(type)->main_type->fields[nfields] = fip->fields->field;
    switch (fip->fields->accessibility)
{
case DW_ACCESS_private:
 SET_TYPE_FIELD_PRIVATE (type, nfields)(((type)->main_type->type_specific.cplus_stuff->private_field_bits
)[((nfields))>>3] |= (1 << (((nfields))&7)));
 break;

case DW_ACCESS_protected:
 SET_TYPE_FIELD_PROTECTED (type, nfields)(((type)->main_type->type_specific.cplus_stuff->protected_field_bits
)[((nfields))>>3] |= (1 << (((nfields))&7)));
 break;

case DW_ACCESS_public:
 break;

default:
 /* Unknown accessibility.  Complain and treat it as public.  */
 {
   complaint (&symfile_complaints, "unsupported accessibility %d",
       fip->fields->accessibility);
 }
 break;
}
    if (nfields < fip->nbaseclasses)
{
 switch (fip->fields->virtuality)
   {
   case DW_VIRTUALITY_virtual:
   case DW_VIRTUALITY_pure_virtual:
     SET_TYPE_FIELD_VIRTUAL (type, nfields)(((type)->main_type->type_specific.cplus_stuff->virtual_field_bits
)[((nfields))>>3] |= (1 << (((nfields))&7)));
     break;
   }
}
    fip->fields = fip->fields->next;
  }
3495}

3497/* Add a member function to the proper fieldlist.  */

3499static void
3500dwarf2_add_member_fn (struct field_info *fip, struct die_info *die,
      struct type *type, struct dwarf2_cu *cu)
3502{
struct objfile *objfile = cu->objfile;
struct attribute *attr;
struct fnfieldlist *flp;
int i;
struct fn_field *fnp;
char *fieldname;
char *physname;
struct nextfnfield *new_fnfield;

/* Get name of member function.  */
attr = dwarf2_attr (die, DW_AT_name, cu);
if (attr && DW_STRING (attr)((attr)->u.str))
  fieldname = DW_STRING (attr)((attr)->u.str);
else
  return;

/* Get the mangled name.  */
physname = dwarf2_linkage_name (die, cu);

/* Look up member function name in fieldlist.  */
for (i = 0; i < fip->nfnfields; i++)
  {
    if (strcmp (fip->fnfieldlists[i].name, fieldname) == 0)
break;
  }

/* Create new list element if necessary.  */
if (i < fip->nfnfields)
  flp = &fip->fnfieldlists[i];
else
  {
    if ((fip->nfnfields % DW_FIELD_ALLOC_CHUNK4) == 0)
{
 fip->fnfieldlists = (struct fnfieldlist *)
   xrealloc (fip->fnfieldlists,
      (fip->nfnfields + DW_FIELD_ALLOC_CHUNK4)
      * sizeof (struct fnfieldlist));
 if (fip->nfnfields == 0)
   make_cleanup (free_current_contents, &fip->fnfieldlists);
}
    flp = &fip->fnfieldlists[fip->nfnfields];
    flp->name = fieldname;
    flp->length = 0;
    flp->head = NULL((void*)0);
    fip->nfnfields++;
  }

/* Create a new member function field and chain it to the field list
   entry. */
new_fnfield = (struct nextfnfield *) xmalloc (sizeof (struct nextfnfield));
make_cleanup (xfree, new_fnfield);
memset (new_fnfield, 0, sizeof (struct nextfnfield));
new_fnfield->next = flp->head;
flp->head = new_fnfield;
flp->length++;

/* Fill in the member function field info.  */
fnp = &new_fnfield->fnfield;
/* The name is already allocated along with this objfile, so we don't
   need to duplicate it for the type.  */
fnp->physname = physname ? physname : "";
fnp->type = alloc_type (objfile);
if (die->type && TYPE_CODE (die->type)(die->type)->main_type->code == TYPE_CODE_FUNC)
  {
    int nparams = TYPE_NFIELDS (die->type)(die->type)->main_type->nfields;

    /* TYPE is the domain of this method, and DIE->TYPE is the type
  of the method itself (TYPE_CODE_METHOD).  */
    smash_to_method_type (fnp->type, type,
	    TYPE_TARGET_TYPE (die->type)(die->type)->main_type->target_type,
	    TYPE_FIELDS (die->type)(die->type)->main_type->fields,
	    TYPE_NFIELDS (die->type)(die->type)->main_type->nfields,
	    TYPE_VARARGS (die->type)((die->type)->main_type->flags & (1 << 11)
));

    /* Handle static member functions.
       Dwarf2 has no clean way to discern C++ static and non-static
       member functions. G++ helps GDB by marking the first
       parameter for non-static member functions (which is the
       this pointer) as artificial. We obtain this information
       from read_subroutine_type via TYPE_FIELD_ARTIFICIAL.  */
    if (nparams == 0 || TYPE_FIELD_ARTIFICIAL (die->type, 0)(((die->type)->main_type->fields[0]).artificial) == 0)
fnp->voffset = VOFFSET_STATIC1;
  }
else
  complaint (&symfile_complaints, "member function type missing for '%s'",
      physname);

/* Get fcontext from DW_AT_containing_type if present.  */
if (dwarf2_attr (die, DW_AT_containing_type, cu) != NULL((void*)0))
  fnp->fcontext = die_containing_type (die, cu);

/* dwarf2 doesn't have stubbed physical names, so the setting of is_const
   and is_volatile is irrelevant, as it is needed by gdb_mangle_name only.  */

/* Get accessibility.  */
attr = dwarf2_attr (die, DW_AT_accessibility, cu);
if (attr)
  {
    switch (DW_UNSND (attr)((attr)->u.unsnd))
{
case DW_ACCESS_private:
 fnp->is_private = 1;
 break;
case DW_ACCESS_protected:
 fnp->is_protected = 1;
 break;
}
  }

/* Check for artificial methods.  */
attr = dwarf2_attr (die, DW_AT_artificial, cu);
if (attr && DW_UNSND (attr)((attr)->u.unsnd) != 0)
  fnp->is_artificial = 1;

/* Get index in virtual function table if it is a virtual member function.  */
attr = dwarf2_attr (die, DW_AT_vtable_elem_location, cu);
if (attr)
  {
    /* Support the .debug_loc offsets */
    if (attr_form_is_block (attr))
      {
        fnp->voffset = decode_locdesc (DW_BLOCK (attr)((attr)->u.blk), cu) + 2;
      }
    else if (attr->form == DW_FORM_data4 || attr->form == DW_FORM_data8)
      {
 dwarf2_complex_location_expr_complaint ();
      }
    else
      {
 dwarf2_invalid_attrib_class_complaint ("DW_AT_vtable_elem_location",
				 fieldname);
      }
 }
3636}

3638/* Create the vector of member function fields, and attach it to the type.  */

3640static void
3641dwarf2_attach_fn_fields_to_type (struct field_info *fip, struct type *type,
		 struct dwarf2_cu *cu)
3643{
struct fnfieldlist *flp;
int total_length = 0;
int i;

ALLOCATE_CPLUS_STRUCT_TYPE (type)allocate_cplus_struct_type (type);
TYPE_FN_FIELDLISTS (type)(type)->main_type->type_specific.cplus_stuff->fn_fieldlists = (struct fn_fieldlist *)
  TYPE_ALLOC (type, sizeof (struct fn_fieldlist) * fip->nfnfields)((type)->main_type->objfile != ((void*)0) ? __extension__
 ({ struct obstack *__h = (&(type)->main_type->objfile
 -> objfile_obstack); __extension__ ({ struct obstack *__o
 = (__h); int __len = ((sizeof (struct fn_fieldlist) * fip->
nfnfields)); if (__o->chunk_limit - __o->next_free <
 __len) _obstack_newchunk (__o, __len); ((__o)->next_free +=
 (__len)); (void) 0; }); __extension__ ({ struct obstack *__o1
 = (__h); void *value; value = (void *) __o1->object_base;
 if (__o1->next_free == value) __o1->maybe_empty_object
 = 1; __o1->next_free = (((((__o1->next_free) - (char *
) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask
)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk
 > __o1->chunk_limit - (char *)__o1->chunk) __o1->
next_free = __o1->chunk_limit; __o1->object_base = __o1
->next_free; value; }); }) : xmalloc (sizeof (struct fn_fieldlist
) * fip->nfnfields));

for (i = 0, flp = fip->fnfieldlists; i < fip->nfnfields; i++, flp++)
  {
    struct nextfnfield *nfp = flp->head;
    struct fn_fieldlist *fn_flp = &TYPE_FN_FIELDLIST (type, i)(type)->main_type->type_specific.cplus_stuff->fn_fieldlists
[i];
    int k;

    TYPE_FN_FIELDLIST_NAME (type, i)(type)->main_type->type_specific.cplus_stuff->fn_fieldlists
[i].name = flp->name;
    TYPE_FN_FIELDLIST_LENGTH (type, i)(type)->main_type->type_specific.cplus_stuff->fn_fieldlists
[i].length = flp->length;
    fn_flp->fn_fields = (struct fn_field *)
TYPE_ALLOC (type, sizeof (struct fn_field) * flp->length)((type)->main_type->objfile != ((void*)0) ? __extension__
 ({ struct obstack *__h = (&(type)->main_type->objfile
 -> objfile_obstack); __extension__ ({ struct obstack *__o
 = (__h); int __len = ((sizeof (struct fn_field) * flp->length
)); if (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); }) : xmalloc
 (sizeof (struct fn_field) * flp->length));
    for (k = flp->length; (k--, nfp); nfp = nfp->next)
fn_flp->fn_fields[k] = nfp->fnfield;

    total_length += flp->length;
  }

TYPE_NFN_FIELDS (type)(type)->main_type->type_specific.cplus_stuff->nfn_fields = fip->nfnfields;
TYPE_NFN_FIELDS_TOTAL (type)(type)->main_type->type_specific.cplus_stuff->nfn_fields_total = total_length;
3670}


3673/* Returns non-zero if NAME is the name of a vtable member in CU's
 language, zero otherwise.  */
3675static int
3676is_vtable_name (const char *name, struct dwarf2_cu *cu)
3677{
static const char vptr[] = "_vptr";
static const char vtable[] = "vtable";

/* Look for the C++ and Java forms of the vtable.  */
if ((cu->language == language_java
     && strncmp (name, vtable, sizeof (vtable) - 1) == 0)
     || (strncmp (name, vptr, sizeof (vptr) - 1) == 0
     && is_cplus_marker (name[sizeof (vptr) - 1])))
  return 1;

return 0;
3689}


3692/* Called when we find the DIE that starts a structure or union scope
 (definition) to process all dies that define the members of the
 structure or union.

 NOTE: we need to call struct_type regardless of whether or not the
 DIE has an at_name attribute, since it might be an anonymous
 structure or union.  This gets the type entered into our set of
 user defined types.

 However, if the structure is incomplete (an opaque struct/union)
 then suppress creating a symbol table entry for it since gdb only
 wants to find the one with the complete definition.  Note that if
 it is complete, we just call new_symbol, which does it's own
 checking about whether the struct/union is anonymous or not (and
 suppresses creating a symbol table entry itself).  */

3708static void
3709read_structure_type (struct die_info *die, struct dwarf2_cu *cu)
3710{
struct objfile *objfile = cu->objfile;
struct type *type;
struct attribute *attr;
const char *previous_prefix = processing_current_prefix;
struct cleanup *back_to = NULL((void*)0);

if (die->type)
  return;

type = alloc_type (objfile);

INIT_CPLUS_SPECIFIC (type)((type)->main_type->type_specific.cplus_stuff=(struct cplus_struct_type
*)&cplus_struct_default);
attr = dwarf2_attr (die, DW_AT_name, cu);
if (attr && DW_STRING (attr)((attr)->u.str))
  {
    if (cu->language == language_cplus
 || cu->language == language_java)
{
 char *new_prefix = determine_class_name (die, cu);
 TYPE_TAG_NAME (type)(type)->main_type->tag_name = obsavestring (new_prefix,
			       strlen (new_prefix),
			       &objfile->objfile_obstack);
 back_to = make_cleanup (xfree, new_prefix);
 processing_current_prefix = new_prefix;
}
    else
{
 /* The name is already allocated along with this objfile, so
    we don't need to duplicate it for the type.  */
 TYPE_TAG_NAME (type)(type)->main_type->tag_name = DW_STRING (attr)((attr)->u.str);
}
  }

if (die->tag == DW_TAG_structure_type)
  {
    TYPE_CODE (type)(type)->main_type->code = TYPE_CODE_STRUCT;
  }
else if (die->tag == DW_TAG_union_type)
  {
    TYPE_CODE (type)(type)->main_type->code = TYPE_CODE_UNION;
  }
else
  {
    /* FIXME: TYPE_CODE_CLASS is currently defined to TYPE_CODE_STRUCT
       in gdbtypes.h.  */
    TYPE_CODE (type)(type)->main_type->code = TYPE_CODE_CLASSTYPE_CODE_STRUCT;
  }

attr = dwarf2_attr (die, DW_AT_byte_size, cu);
if (attr)
  {
    TYPE_LENGTH (type)(type)->length = DW_UNSND (attr)((attr)->u.unsnd);
  }
else
  {
    TYPE_LENGTH (type)(type)->length = 0;
  }

if (die_is_declaration (die, cu))
  TYPE_FLAGS (type)(type)->main_type->flags |= TYPE_FLAG_STUB(1 << 2);

/* We need to add the type field to the die immediately so we don't
   infinitely recurse when dealing with pointers to the structure
   type within the structure itself. */
set_die_type (die, type, cu);

if (die->child != NULL((void*)0) && ! die_is_declaration (die, cu))
  {
    struct field_info fi;
    struct die_info *child_die;
    struct cleanup *back_to = make_cleanup (null_cleanup, NULL((void*)0));

    memset (&fi, 0, sizeof (struct field_info));

    child_die = die->child;

    while (child_die && child_die->tag)
{
 if (child_die->tag == DW_TAG_member
     || child_die->tag == DW_TAG_variable)
   {
     /* NOTE: carlton/2002-11-05: A C++ static data member
 should be a DW_TAG_member that is a declaration, but
 all versions of G++ as of this writing (so through at
 least 3.2.1) incorrectly generate DW_TAG_variable
 tags for them instead.  */
     dwarf2_add_field (&fi, child_die, cu);
   }
 else if (child_die->tag == DW_TAG_subprogram)
   {
     /* C++ member function. */
     read_type_die (child_die, cu);
     dwarf2_add_member_fn (&fi, child_die, type, cu);
   }
 else if (child_die->tag == DW_TAG_inheritance)
   {
     /* C++ base class field.  */
     dwarf2_add_field (&fi, child_die, cu);
   }
 child_die = sibling_die (child_die);
}

    /* Attach fields and member functions to the type.  */
    if (fi.nfields)
dwarf2_attach_fields_to_type (&fi, type, cu);
    if (fi.nfnfields)
{
 dwarf2_attach_fn_fields_to_type (&fi, type, cu);

 /* Get the type which refers to the base class (possibly this
    class itself) which contains the vtable pointer for the current
    class from the DW_AT_containing_type attribute.  */

 if (dwarf2_attr (die, DW_AT_containing_type, cu) != NULL((void*)0))
   {
     struct type *t = die_containing_type (die, cu);

     TYPE_VPTR_BASETYPE (type)(type)->main_type->vptr_basetype = t;
     if (type == t)
{
  int i;

  /* Our own class provides vtbl ptr.  */
  for (i = TYPE_NFIELDS (t)(t)->main_type->nfields - 1;
       i >= TYPE_N_BASECLASSES (t)(t)->main_type->type_specific.cplus_stuff->n_baseclasses;
       --i)
    {
      char *fieldname = TYPE_FIELD_NAME (t, i)(((t)->main_type->fields[i]).name);

                    if (is_vtable_name (fieldname, cu))
	{
	  TYPE_VPTR_FIELDNO (type)(type)->main_type->vptr_fieldno = i;
	  break;
	}
    }

  /* Complain if virtual function table field not found.  */
  if (i < TYPE_N_BASECLASSES (t)(t)->main_type->type_specific.cplus_stuff->n_baseclasses)
    complaint (&symfile_complaints,
	       "virtual function table pointer not found when defining class '%s'",
	       TYPE_TAG_NAME (type)(type)->main_type->tag_name ? TYPE_TAG_NAME (type)(type)->main_type->tag_name :
	       "");
}
     else
{
  TYPE_VPTR_FIELDNO (type)(type)->main_type->vptr_fieldno = TYPE_VPTR_FIELDNO (t)(t)->main_type->vptr_fieldno;
}
   }
}

    do_cleanups (back_to);
  }

processing_current_prefix = previous_prefix;
if (back_to != NULL((void*)0))
  do_cleanups (back_to);
3867}

3869static void
3870process_structure_scope (struct die_info *die, struct dwarf2_cu *cu)
3871{
struct objfile *objfile = cu->objfile;
const char *previous_prefix = processing_current_prefix;
struct die_info *child_die = die->child;

if (TYPE_TAG_NAME (die->type)(die->type)->main_type->tag_name != NULL((void*)0))
  processing_current_prefix = TYPE_TAG_NAME (die->type)(die->type)->main_type->tag_name;

/* NOTE: carlton/2004-03-16: GCC 3.4 (or at least one of its
   snapshots) has been known to create a die giving a declaration
   for a class that has, as a child, a die giving a definition for a
   nested class.  So we have to process our children even if the
   current die is a declaration.  Normally, of course, a declaration
   won't have any children at all.  */

while (child_die != NULL((void*)0) && child_die->tag)
  {
    if (child_die->tag == DW_TAG_member
 || child_die->tag == DW_TAG_variable
 || child_die->tag == DW_TAG_inheritance)
{
 /* Do nothing.  */
}
    else
process_die (child_die, cu);

    child_die = sibling_die (child_die);
  }

if (die->child != NULL((void*)0) && ! die_is_declaration (die, cu))
  new_symbol (die, die->type, cu);

processing_current_prefix = previous_prefix;
3904}

3906/* Given a DW_AT_enumeration_type die, set its type.  We do not
 complete the type's fields yet, or create any symbols.  */

3909static void
3910read_enumeration_type (struct die_info *die, struct dwarf2_cu *cu)
3911{
struct objfile *objfile = cu->objfile;
struct type *type;
struct attribute *attr;

if (die->type)
  return;

type = alloc_type (objfile);

TYPE_CODE (type)(type)->main_type->code = TYPE_CODE_ENUM;
attr = dwarf2_attr (die, DW_AT_name, cu);
if (attr && DW_STRING (attr)((attr)->u.str))
  {
    char *name = DW_STRING (attr)((attr)->u.str);

    if (processing_has_namespace_info)
{
 TYPE_TAG_NAME (type)(type)->main_type->tag_name = typename_concat (&objfile->objfile_obstack,
				  processing_current_prefix,
				  name, cu);
}
    else
{
 /* The name is already allocated along with this objfile, so
    we don't need to duplicate it for the type.  */
 TYPE_TAG_NAME (type)(type)->main_type->tag_name = name;
}
  }

attr = dwarf2_attr (die, DW_AT_byte_size, cu);
if (attr)
  {
    TYPE_LENGTH (type)(type)->length = DW_UNSND (attr)((attr)->u.unsnd);
  }
else
  {
    TYPE_LENGTH (type)(type)->length = 0;
  }

set_die_type (die, type, cu);
3952}

3954/* Determine the name of the type represented by DIE, which should be
 a named C++ or Java compound type.  Return the name in question; the caller
 is responsible for xfree()'ing it.  */

3958static char *
3959determine_class_name (struct die_info *die, struct dwarf2_cu *cu)
3960{
struct cleanup *back_to = NULL((void*)0);
struct die_info *spec_die = die_specification (die, cu);
char *new_prefix = NULL((void*)0);

/* If this is the definition of a class that is declared by another
   die, then processing_current_prefix may not be accurate; see
   read_func_scope for a similar example.  */
if (spec_die != NULL((void*)0))
  {
    char *specification_prefix = determine_prefix (spec_die, cu);
    processing_current_prefix = specification_prefix;
    back_to = make_cleanup (xfree, specification_prefix);
  }

/* If we don't have namespace debug info, guess the name by trying
   to demangle the names of members, just like we did in
   guess_structure_name.  */
if (!processing_has_namespace_info)
  {
    struct die_info *child;

    for (child = die->child;
  child != NULL((void*)0) && child->tag != 0;
  child = sibling_die (child))
{
 if (child->tag == DW_TAG_subprogram)
   {
     new_prefix 
= language_class_name_from_physname (cu->language_defn,
				     dwarf2_linkage_name
				     (child, cu));

     if (new_prefix != NULL((void*)0))
break;
   }
}
  }

if (new_prefix == NULL((void*)0))
  {
    const char *name = dwarf2_name (die, cu);
    new_prefix = typename_concat (NULL((void*)0), processing_current_prefix,
		    name ? name : "<<anonymous>>", 
		    cu);
  }

if (back_to != NULL((void*)0))
  do_cleanups (back_to);

return new_prefix;
4011}

4013/* Given a pointer to a die which begins an enumeration, process all
 the dies that define the members of the enumeration, and create the
 symbol for the enumeration type.

 NOTE: We reverse the order of the element list.  */

4019static void
4020process_enumeration_scope (struct die_info *die, struct dwarf2_cu *cu)
4021{
struct objfile *objfile = cu->objfile;
struct die_info *child_die;
struct field *fields;
struct attribute *attr;
struct symbol *sym;
int num_fields;
int unsigned_enum = 1;

num_fields = 0;
fields = NULL((void*)0);
if (die->child != NULL((void*)0))
  {
    child_die = die->child;
    while (child_die && child_die->tag)
{
 if (child_die->tag != DW_TAG_enumerator)
   {
     process_die (child_die, cu);
   }
 else
   {
     attr = dwarf2_attr (child_die, DW_AT_name, cu);
     if (attr)
{
  sym = new_symbol (child_die, die->type, cu);
  if (SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue < 0)
    unsigned_enum = 0;

  if ((num_fields % DW_FIELD_ALLOC_CHUNK4) == 0)
    {
      fields = (struct field *)
	xrealloc (fields,
		  (num_fields + DW_FIELD_ALLOC_CHUNK4)
		  * sizeof (struct field));
    }

  FIELD_NAME (fields[num_fields])((fields[num_fields]).name) = DEPRECATED_SYMBOL_NAME (sym)(sym)->ginfo.name;
  FIELD_TYPE (fields[num_fields])((fields[num_fields]).type) = NULL((void*)0);
  FIELD_BITPOS (fields[num_fields])((fields[num_fields]).loc.bitpos) = SYMBOL_VALUE (sym)(sym)->ginfo.value.ivalue;
  FIELD_BITSIZE (fields[num_fields])((fields[num_fields]).bitsize) = 0;
  FIELD_STATIC_KIND (fields[num_fields])((fields[num_fields]).static_kind) = 0;

  num_fields++;
}
   }

 child_die = sibling_die (child_die);
}

    if (num_fields)
{
 TYPE_NFIELDS (die->type)(die->type)->main_type->nfields = num_fields;
 TYPE_FIELDS (die->type)(die->type)->main_type->fields = (struct field *)
   TYPE_ALLOC (die->type, sizeof (struct field) * num_fields)((die->type)->main_type->objfile != ((void*)0) ? __extension__
 ({ struct obstack *__h = (&(die->type)->main_type->
objfile -> objfile_obstack); __extension__ ({ struct obstack
 *__o = (__h); int __len = ((sizeof (struct field) * num_fields
)); if (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); }) : xmalloc
 (sizeof (struct field) * num_fields));
 memcpy (TYPE_FIELDS (die->type)(die->type)->main_type->fields, fields,
  sizeof (struct field) * num_fields);
 xfree (fields);
}
    if (unsigned_enum)
TYPE_FLAGS (die->type)(die->type)->main_type->flags |= TYPE_FLAG_UNSIGNED(1 << 0);
  }

new_symbol (die, die->type, cu);
4085}

4087/* Extract all information from a DW_TAG_array_type DIE and put it in
 the DIE's type field.  For now, this only handles one dimensional
 arrays.  */

4091static void
4092read_array_type (struct die_info *die, struct dwarf2_cu *cu)
4093{
struct objfile *objfile = cu->objfile;
struct die_info *child_die;
struct type *type = NULL((void*)0);
struct type *element_type, *range_type, *index_type;
struct type **range_types = NULL((void*)0);
struct attribute *attr;
int ndim = 0;
struct cleanup *back_to;

/* Return if we've already decoded this type. */
if (die->type)
  {
    return;
  }

element_type = die_type (die, cu);

/* Irix 6.2 native cc creates array types without children for
   arrays with unspecified length.  */
if (die->child == NULL((void*)0))
  {
    index_type = dwarf2_fundamental_type (objfile, FT_INTEGER8, cu);
    range_type = create_range_type (NULL((void*)0), index_type, 0, -1);
    set_die_type (die, create_array_type (NULL((void*)0), element_type, range_type),
    cu);
    return;
  }

back_to = make_cleanup (null_cleanup, NULL((void*)0));
child_die = die->child;
while (child_die && child_die->tag)
  {
    if (child_die->tag == DW_TAG_subrange_type)
{
        read_subrange_type (child_die, cu);

        if (child_die->type != NULL((void*)0))
          {
     /* The range type was succesfully read. Save it for
               the array type creation.  */
            if ((ndim % DW_FIELD_ALLOC_CHUNK4) == 0)
              {
                range_types = (struct type **)
                  xrealloc (range_types, (ndim + DW_FIELD_ALLOC_CHUNK4)
                            * sizeof (struct type *));
                if (ndim == 0)
                  make_cleanup (free_current_contents, &range_types);
       }
     range_types[ndim++] = child_die->type;
          }
}
    child_die = sibling_die (child_die);
  }

/* Dwarf2 dimensions are output from left to right, create the
   necessary array types in backwards order.  */

type = element_type;

if (read_array_order (die, cu) == DW_ORD_col_major)
  {
    int i = 0;
    while (i < ndim)
type = create_array_type (NULL((void*)0), type, range_types[i++]);
  }
else
  {
    while (ndim-- > 0)
type = create_array_type (NULL((void*)0), type, range_types[ndim]);
  }

/* Understand Dwarf2 support for vector types (like they occur on
   the PowerPC w/ AltiVec).  Gcc just adds another attribute to the
   array type.  This is not part of the Dwarf2/3 standard yet, but a
   custom vendor extension.  The main difference between a regular
   array and the vector variant is that vectors are passed by value
   to functions.  */
attr = dwarf2_attr (die, DW_AT_GNU_vector, cu);
if (attr)
  TYPE_FLAGS (type)(type)->main_type->flags |= TYPE_FLAG_VECTOR(1 << 12);

do_cleanups (back_to);

/* Install the type in the die. */
set_die_type (die, type, cu);
4179}

4181static enum dwarf_array_dim_ordering
4182read_array_order (struct die_info *die, struct dwarf2_cu *cu) 
4183{
struct attribute *attr;

attr = dwarf2_attr (die, DW_AT_ordering, cu);

if (attr) return DW_SND (attr)((attr)->u.snd);

/*
  GNU F77 is a special case, as at 08/2004 array type info is the
  opposite order to the dwarf2 specification, but data is still 
  laid out as per normal fortran.

  FIXME: dsl/2004-8-20: If G77 is ever fixed, this will also need 
  version checking.
*/

if (cu->language == language_fortran &&
    cu->producer && strstr (cu->producer, "GNU F77"))
  {
    return DW_ORD_row_major;
  }

switch (cu->language_defn->la_array_ordering) 
  {
  case array_column_major:
    return DW_ORD_col_major;
  case array_row_major:
  default:
    return DW_ORD_row_major;
  };
4213}


4216/* First cut: install each common block member as a global variable.  */

4218static void
4219read_common_block (struct die_info *die, struct dwarf2_cu *cu)
4220{
struct die_info *child_die;
struct attribute *attr;
struct symbol *sym;
CORE_ADDR base = (CORE_ADDR) 0;

attr = dwarf2_attr (die, DW_AT_location, cu);
if (attr)
11
←
Assuming 'attr' is non-null→
12
←
Taking true branch→
  {
    /* Support the .debug_loc offsets */
    if (attr_form_is_block (attr))
13
←
Taking true branch→
      {
        base = decode_locdesc (DW_BLOCK (attr)((attr)->u.blk), cu);
14
←
Calling 'decode_locdesc'→
      }
    else if (attr->form == DW_FORM_data4 || attr->form == DW_FORM_data8)
      {
 dwarf2_complex_location_expr_complaint ();
      }
    else
      {
 dwarf2_invalid_attrib_class_complaint ("DW_AT_location",
				 "common block member");
      }
  }
if (die->child != NULL((void*)0))
  {
    child_die = die->child;
    while (child_die && child_die->tag)
{
 sym = new_symbol (child_die, NULL((void*)0), cu);
 attr = dwarf2_attr (child_die, DW_AT_data_member_location, cu);
 if (attr)
   {
     SYMBOL_VALUE_ADDRESS (sym)(sym)->ginfo.value.address =
base + decode_locdesc (DW_BLOCK (attr)((attr)->u.blk), cu);
     add_symbol_to_list (sym, &global_symbols);
   }
 child_die = sibling_die (child_die);
}
  }
4260}

4262/* Read a C++ namespace.  */

4264static void
4265read_namespace (struct die_info *die, struct dwarf2_cu *cu)
4266{
struct objfile *objfile = cu->objfile;
const char *previous_prefix = processing_current_prefix;
const char *name;
int is_anonymous;
struct die_info *current_die;
struct cleanup *back_to = make_cleanup (null_cleanup, 0);

name = namespace_name (die, &is_anonymous, cu);

/* Now build the name of the current namespace.  */

if (previous_prefix[0] == '\0')
1
Assuming the condition is true→
2
←
Taking true branch→
  {
    processing_current_prefix = name;
  }
else
  {
    char *temp_name = typename_concat (NULL((void*)0), previous_prefix, name, cu);
    make_cleanup (xfree, temp_name);
    processing_current_prefix = temp_name;
  }

/* Add a symbol associated to this if we haven't seen the namespace
   before.  Also, add a using directive if it's an anonymous
   namespace.  */

if (dwarf2_extension (die, cu) == NULL((void*)0))
3
←
Taking true branch→
  {
    struct type *type;

    /* FIXME: carlton/2003-06-27: Once GDB is more const-correct,
this cast will hopefully become unnecessary.  */
    type = init_type (TYPE_CODE_NAMESPACE, 0, 0,
	(char *) processing_current_prefix,
	objfile);
    TYPE_TAG_NAME (type)(type)->main_type->tag_name = TYPE_NAME (type)(type)->main_type->name;

    new_symbol (die, type, cu);
    set_die_type (die, type, cu);

    if (is_anonymous3.1
'is_anonymous' is 0
)
4
←
Taking false branch→
cp_add_using_directive (processing_current_prefix,
		strlen (previous_prefix),
		strlen (processing_current_prefix));
  }

if (die->child != NULL((void*)0))
5
←
Assuming field 'child' is not equal to NULL→
6
←
Taking true branch→
  {
    struct die_info *child_die = die->child;
    
    while (child_die6.1
'child_die' is non-null
 && child_die->tag)
7
←
Loop condition is true.  Entering loop body→
{
 process_die (child_die, cu);
8
←
Calling 'process_die'→
 child_die = sibling_die (child_die);
}
  }

processing_current_prefix = previous_prefix;
do_cleanups (back_to);
4326}

4328/* Return the name of the namespace represented by DIE.  Set
 *IS_ANONYMOUS to tell whether or not the namespace is an anonymous
 namespace.  */

4332static const char *
4333namespace_name (struct die_info *die, int *is_anonymous, struct dwarf2_cu *cu)
4334{
struct die_info *current_die;
const char *name = NULL((void*)0);

/* Loop through the extensions until we find a name.  */

for (current_die = die;
     current_die != NULL((void*)0);
     current_die = dwarf2_extension (die, cu))
  {
    name = dwarf2_name (current_die, cu);
    if (name != NULL((void*)0))
break;
  }

/* Is it an anonymous namespace?  */

*is_anonymous = (name == NULL((void*)0));
if (*is_anonymous)
  name = "(anonymous namespace)";

return name;
4356}

4358/* Extract all information from a DW_TAG_pointer_type DIE and add to
 the user defined type vector.  */

4361static void
4362read_tag_pointer_type (struct die_info *die, struct dwarf2_cu *cu)
4363{
struct comp_unit_head *cu_header = &cu->header;
struct type *type;
struct attribute *attr_byte_size;
struct attribute *attr_address_class;
int byte_size, addr_class;

if (die->type)
  {
    return;
  }

type = lookup_pointer_type (die_type (die, cu));

attr_byte_size = dwarf2_attr (die, DW_AT_byte_size, cu);
if (attr_byte_size)
  byte_size = DW_UNSND (attr_byte_size)((attr_byte_size)->u.unsnd);
else
  byte_size = cu_header->addr_size;

attr_address_class = dwarf2_attr (die, DW_AT_address_class, cu);
if (attr_address_class)
  addr_class = DW_UNSND (attr_address_class)((attr_address_class)->u.unsnd);
else
  addr_class = DW_ADDR_none0;

/* If the pointer size or address class is different than the
   default, create a type variant marked as such and set the
   length accordingly.  */
if (TYPE_LENGTH (type)(type)->length != byte_size || addr_class != DW_ADDR_none0)
  {
    if (ADDRESS_CLASS_TYPE_FLAGS_P ()(gdbarch_address_class_type_flags_p (current_gdbarch)))
{
 int type_flags;

 type_flags = ADDRESS_CLASS_TYPE_FLAGS (byte_size, addr_class)(gdbarch_address_class_type_flags (current_gdbarch, byte_size
, addr_class));
 gdb_assert ((type_flags & ~TYPE_FLAG_ADDRESS_CLASS_ALL) == 0)((void) (((type_flags & ~((1 << 13) | (1 << 14
))) == 0) ? 0 : (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 4399, "%s: Assertion `%s' failed.", __PRETTY_FUNCTION__, "(type_flags & ~TYPE_FLAG_ADDRESS_CLASS_ALL) == 0"
), 0)));
 type = make_type_with_address_space (type, type_flags);
}
    else if (TYPE_LENGTH (type)(type)->length != byte_size)
{
 complaint (&symfile_complaints, "invalid pointer size %d", byte_size);
}
    else {
/* Should we also complain about unhandled address classes?  */
    }
  }

TYPE_LENGTH (type)(type)->length = byte_size;
set_die_type (die, type, cu);
4413}

4415/* Extract all information from a DW_TAG_ptr_to_member_type DIE and add to
 the user defined type vector.  */

4418static void
4419read_tag_ptr_to_member_type (struct die_info *die, struct dwarf2_cu *cu)
4420{
struct objfile *objfile = cu->objfile;
struct type *type;
struct type *to_type;
struct type *domain;

if (die->type)
  {
    return;
  }

type = alloc_type (objfile);
to_type = die_type (die, cu);
domain = die_containing_type (die, cu);
smash_to_member_type (type, domain, to_type);

set_die_type (die, type, cu);
4437}

4439/* Extract all information from a DW_TAG_reference_type DIE and add to
 the user defined type vector.  */

4442static void
4443read_tag_reference_type (struct die_info *die, struct dwarf2_cu *cu)
4444{
struct comp_unit_head *cu_header = &cu->header;
struct type *type;
struct attribute *attr;

if (die->type)
  {
    return;
  }

type = lookup_reference_type (die_type (die, cu));
attr = dwarf2_attr (die, DW_AT_byte_size, cu);
if (attr)
  {
    TYPE_LENGTH (type)(type)->length = DW_UNSND (attr)((attr)->u.unsnd);
  }
else
  {
    TYPE_LENGTH (type)(type)->length = cu_header->addr_size;
  }
set_die_type (die, type, cu);
4465}

4467static void
4468read_tag_const_type (struct die_info *die, struct dwarf2_cu *cu)
4469{
struct type *base_type;

if (die->type)
  {
    return;
  }

base_type = die_type (die, cu);
set_die_type (die, make_cv_type (1, TYPE_VOLATILE (base_type)((base_type)->instance_flags & (1 << 6)), base_type, 0),
cu);
4480}

4482static void
4483read_tag_volatile_type (struct die_info *die, struct dwarf2_cu *cu)
4484{
struct type *base_type;

if (die->type)
  {
    return;
  }

base_type = die_type (die, cu);
set_die_type (die, make_cv_type (TYPE_CONST (base_type)((base_type)->instance_flags & (1 << 5)), 1, base_type, 0),
cu);
4495}

4497/* Extract all information from a DW_TAG_string_type DIE and add to
 the user defined type vector.  It isn't really a user defined type,
 but it behaves like one, with other DIE's using an AT_user_def_type
 attribute to reference it.  */

4502static void
4503read_tag_string_type (struct die_info *die, struct dwarf2_cu *cu)
4504{
struct objfile *objfile = cu->objfile;
struct type *type, *range_type, *index_type, *char_type;
struct attribute *attr;
unsigned int length;

if (die->type)
  {
    return;
  }

attr = dwarf2_attr (die, DW_AT_string_length, cu);
if (attr)
  {
    length = DW_UNSND (attr)((attr)->u.unsnd);
  }
else
  {
    /* check for the DW_AT_byte_size attribute */
    attr = dwarf2_attr (die, DW_AT_byte_size, cu);
    if (attr)
      {
        length = DW_UNSND (attr)((attr)->u.unsnd);
      }
    else
      {
        length = 1;
      }
  }
index_type = dwarf2_fundamental_type (objfile, FT_INTEGER8, cu);
range_type = create_range_type (NULL((void*)0), index_type, 1, length);
if (cu->language == language_fortran)
  {
    /* Need to create a unique string type for bounds
       information */
    type = create_string_type (0, range_type);
  }
else
  {
    char_type = dwarf2_fundamental_type (objfile, FT_CHAR2, cu);
    type = create_string_type (char_type, range_type);
  }
set_die_type (die, type, cu);
4547}

4549/* Handle DIES due to C code like:

 struct foo
 {
 int (*funcp)(int a, long l);
 int b;
 };

 ('funcp' generates a DW_TAG_subroutine_type DIE)
*/

4560static void
4561read_subroutine_type (struct die_info *die, struct dwarf2_cu *cu)
4562{
struct type *type;		/* Type that this function returns */
struct type *ftype;		/* Function that returns above type */
struct attribute *attr;

/* Decode the type that this subroutine returns */
if (die->type)
  {
    return;
  }
type = die_type (die, cu);
ftype = make_function_type (type, (struct type **) 0);

/* All functions in C++ and Java have prototypes.  */
attr = dwarf2_attr (die, DW_AT_prototyped, cu);
if ((attr && (DW_UNSND (attr)((attr)->u.unsnd) != 0))
    || cu->language == language_cplus
    || cu->language == language_java)
  TYPE_FLAGS (ftype)(ftype)->main_type->flags |= TYPE_FLAG_PROTOTYPED(1 << 7);

if (die->child != NULL((void*)0))
  {
    struct die_info *child_die;
    int nparams = 0;
    int iparams = 0;

    /* Count the number of parameters.
       FIXME: GDB currently ignores vararg functions, but knows about
       vararg member functions.  */
    child_die = die->child;
    while (child_die && child_die->tag)
{
 if (child_die->tag == DW_TAG_formal_parameter)
   nparams++;
 else if (child_die->tag == DW_TAG_unspecified_parameters)
   TYPE_FLAGS (ftype)(ftype)->main_type->flags |= TYPE_FLAG_VARARGS(1 << 11);
 child_die = sibling_die (child_die);
}

    /* Allocate storage for parameters and fill them in.  */
    TYPE_NFIELDS (ftype)(ftype)->main_type->nfields = nparams;
    TYPE_FIELDS (ftype)(ftype)->main_type->fields = (struct field *)
TYPE_ALLOC (ftype, nparams * sizeof (struct field))((ftype)->main_type->objfile != ((void*)0) ? __extension__
 ({ struct obstack *__h = (&(ftype)->main_type->objfile
 -> objfile_obstack); __extension__ ({ struct obstack *__o
 = (__h); int __len = ((nparams * sizeof (struct field))); if
 (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); }) : xmalloc
 (nparams * sizeof (struct field)));

    child_die = die->child;
    while (child_die && child_die->tag)
{
 if (child_die->tag == DW_TAG_formal_parameter)
   {
     /* Dwarf2 has no clean way to discern C++ static and non-static
        member functions. G++ helps GDB by marking the first
        parameter for non-static member functions (which is the
        this pointer) as artificial. We pass this information
        to dwarf2_add_member_fn via TYPE_FIELD_ARTIFICIAL.  */
     attr = dwarf2_attr (child_die, DW_AT_artificial, cu);
     if (attr)
TYPE_FIELD_ARTIFICIAL (ftype, iparams)(((ftype)->main_type->fields[iparams]).artificial) = DW_UNSND (attr)((attr)->u.unsnd);
     else
TYPE_FIELD_ARTIFICIAL (ftype, iparams)(((ftype)->main_type->fields[iparams]).artificial) = 0;
     TYPE_FIELD_TYPE (ftype, iparams)(((ftype)->main_type->fields[iparams]).type) = die_type (child_die, cu);
     iparams++;
   }
 child_die = sibling_die (child_die);
}
  }

set_die_type (die, ftype, cu);
4629}

4631static void
4632read_typedef (struct die_info *die, struct dwarf2_cu *cu)
4633{
struct objfile *objfile = cu->objfile;
struct attribute *attr;
char *name = NULL((void*)0);

if (!die->type)
  {
    attr = dwarf2_attr (die, DW_AT_name, cu);
    if (attr && DW_STRING (attr)((attr)->u.str))
{
 name = DW_STRING (attr)((attr)->u.str);
}
    set_die_type (die, init_type (TYPE_CODE_TYPEDEF, 0,
		    TYPE_FLAG_TARGET_STUB(1 << 3), name, objfile),
    cu);
    TYPE_TARGET_TYPE (die->type)(die->type)->main_type->target_type = die_type (die, cu);
  }
4650}

4652/* Find a representation of a given base type and install
 it in the TYPE field of the die.  */

4655static void
4656read_base_type (struct die_info *die, struct dwarf2_cu *cu)
4657{
struct objfile *objfile = cu->objfile;
struct type *type;
struct attribute *attr;
int encoding = 0, size = 0;

/* If we've already decoded this die, this is a no-op. */
if (die->type)
  {
    return;
  }

attr = dwarf2_attr (die, DW_AT_encoding, cu);
if (attr)
  {
    encoding = DW_UNSND (attr)((attr)->u.unsnd);
  }
attr = dwarf2_attr (die, DW_AT_byte_size, cu);
if (attr)
  {
    size = DW_UNSND (attr)((attr)->u.unsnd);
  }
attr = dwarf2_attr (die, DW_AT_name, cu);
if (attr && DW_STRING (attr)((attr)->u.str))
  {
    enum type_code code = TYPE_CODE_INT;
    int type_flags = 0;

    switch (encoding)
{
case DW_ATE_address:
 /* Turn DW_ATE_address into a void * pointer.  */
 code = TYPE_CODE_PTR;
 type_flags |= TYPE_FLAG_UNSIGNED(1 << 0);
 break;
case DW_ATE_boolean:
 code = TYPE_CODE_BOOL;
 type_flags |= TYPE_FLAG_UNSIGNED(1 << 0);
 break;
case DW_ATE_complex_float:
 code = TYPE_CODE_COMPLEX;
 break;
case DW_ATE_float:
 code = TYPE_CODE_FLT;
 break;
case DW_ATE_signed:
case DW_ATE_signed_char:
 break;
case DW_ATE_unsigned:
case DW_ATE_unsigned_char:
 type_flags |= TYPE_FLAG_UNSIGNED(1 << 0);
 break;
default:
 complaint (&symfile_complaints, "unsupported DW_AT_encoding: '%s'",
     dwarf_type_encoding_name (encoding));
 break;
}
    type = init_type (code, size, type_flags, DW_STRING (attr)((attr)->u.str), objfile);
    if (encoding == DW_ATE_address)
TYPE_TARGET_TYPE (type)(type)->main_type->target_type = dwarf2_fundamental_type (objfile, FT_VOID0,
					   cu);
    else if (encoding == DW_ATE_complex_float)
{
 if (size == 32)
   TYPE_TARGET_TYPE (type)(type)->main_type->target_type
     = dwarf2_fundamental_type (objfile, FT_EXT_PREC_FLOAT19, cu);
 else if (size == 16)
   TYPE_TARGET_TYPE (type)(type)->main_type->target_type
     = dwarf2_fundamental_type (objfile, FT_DBL_PREC_FLOAT18, cu);
 else if (size == 8)
   TYPE_TARGET_TYPE (type)(type)->main_type->target_type
     = dwarf2_fundamental_type (objfile, FT_FLOAT17, cu);
}
  }
else
  {
    type = dwarf_base_type (encoding, size, cu);
  }
set_die_type (die, type, cu);
4736}

4738/* Read the given DW_AT_subrange DIE.  */

4740static void
4741read_subrange_type (struct die_info *die, struct dwarf2_cu *cu)
4742{
struct type *base_type;
struct type *range_type;
struct attribute *attr;
int low = 0;
int high = -1;

/* If we have already decoded this die, then nothing more to do.  */
if (die->type)
  return;

base_type = die_type (die, cu);
if (base_type == NULL((void*)0))
  {
    complaint (&symfile_complaints,
              "DW_AT_type missing from DW_TAG_subrange_type");
    return;
  }

if (TYPE_CODE (base_type)(base_type)->main_type->code == TYPE_CODE_VOID)
  base_type = alloc_type (NULL((void*)0));

if (cu->language == language_fortran)
  { 
    /* FORTRAN implies a lower bound of 1, if not given.  */
    low = 1;
  }

/* FIXME: For variable sized arrays either of these could be
   a variable rather than a constant value.  We'll allow it,
   but we don't know how to handle it.  */
attr = dwarf2_attr (die, DW_AT_lower_bound, cu);
if (attr)
  low = dwarf2_get_attr_constant_value (attr, 0);

attr = dwarf2_attr (die, DW_AT_upper_bound, cu);
if (attr)
  {       
    if (attr->form == DW_FORM_block1)
      {
        /* GCC encodes arrays with unspecified or dynamic length
           with a DW_FORM_block1 attribute.
           FIXME: GDB does not yet know how to handle dynamic
           arrays properly, treat them as arrays with unspecified
           length for now.

           FIXME: jimb/2003-09-22: GDB does not really know
           how to handle arrays of unspecified length
           either; we just represent them as zero-length
           arrays.  Choose an appropriate upper bound given
           the lower bound we've computed above.  */
        high = low - 1;
      }
    else
      high = dwarf2_get_attr_constant_value (attr, 1);
  }

range_type = create_range_type (NULL((void*)0), base_type, low, high);

attr = dwarf2_attr (die, DW_AT_name, cu);
if (attr && DW_STRING (attr)((attr)->u.str))
  TYPE_NAME (range_type)(range_type)->main_type->name = DW_STRING (attr)((attr)->u.str);

attr = dwarf2_attr (die, DW_AT_byte_size, cu);
if (attr)
  TYPE_LENGTH (range_type)(range_type)->length = DW_UNSND (attr)((attr)->u.unsnd);

set_die_type (die, range_type, cu);
4810}


4813/* Read a whole compilation unit into a linked list of dies.  */

4815static struct die_info *
4816read_comp_unit (char *info_ptr, bfd *abfd, struct dwarf2_cu *cu)
4817{
return read_die_and_children (info_ptr, abfd, cu, &info_ptr, NULL((void*)0));
4819}

4821/* Read a single die and all its descendents.  Set the die's sibling
 field to NULL; set other fields in the die correctly, and set all
 of the descendents' fields correctly.  Set *NEW_INFO_PTR to the
 location of the info_ptr after reading all of those dies.  PARENT
 is the parent of the die in question.  */

4827static struct die_info *
4828read_die_and_children (char *info_ptr, bfd *abfd,
       struct dwarf2_cu *cu,
       char **new_info_ptr,
       struct die_info *parent)
4832{
struct die_info *die;
char *cur_ptr;
int has_children;

cur_ptr = read_full_die (&die, abfd, info_ptr, cu, &has_children);
store_in_ref_table (die->offset, die, cu);

if (has_children)
  {
    die->child = read_die_and_siblings (cur_ptr, abfd, cu,
			  new_info_ptr, die);
  }
else
  {
    die->child = NULL((void*)0);
    *new_info_ptr = cur_ptr;
  }

die->sibling = NULL((void*)0);
die->parent = parent;
return die;
4854}

4856/* Read a die, all of its descendents, and all of its siblings; set
 all of the fields of all of the dies correctly.  Arguments are as
 in read_die_and_children.  */

4860static struct die_info *
4861read_die_and_siblings (char *info_ptr, bfd *abfd,
       struct dwarf2_cu *cu,
       char **new_info_ptr,
       struct die_info *parent)
4865{
struct die_info *first_die, *last_sibling;
char *cur_ptr;

cur_ptr = info_ptr;
first_die = last_sibling = NULL((void*)0);

while (1)
  {
    struct die_info *die
= read_die_and_children (cur_ptr, abfd, cu, &cur_ptr, parent);

    if (!first_die)
{
 first_die = die;
}
    else
{
 last_sibling->sibling = die;
}

    if (die->tag == 0)
{
 *new_info_ptr = cur_ptr;
 return first_die;
}
    else
{
 last_sibling = die;
}
  }
4896}

4898/* Free a linked list of dies.  */

4900static void
4901free_die_list (struct die_info *dies)
4902{
struct die_info *die, *next;

die = dies;
while (die)
  {
    if (die->child != NULL((void*)0))
free_die_list (die->child);
    next = die->sibling;
    xfree (die->attrs);
    xfree (die);
    die = next;
  }
4915}

4917/* Read the contents of the section at OFFSET and of size SIZE from the
 object file specified by OBJFILE into the objfile_obstack and return it.  */

4920char *
4921dwarf2_read_section (struct objfile *objfile, asection *sectp)
4922{
bfd *abfd = objfile->obfd;
char *buf, *retbuf;
bfd_size_type size = bfd_get_section_size (sectp)((sectp)->_raw_size);

if (size == 0)
  return NULL((void*)0);

buf = (char *) obstack_alloc (&objfile->objfile_obstack, size)__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(size)); if (__o->chunk_limit - __o->next_free < __len
) _obstack_newchunk (__o, __len); ((__o)->next_free += (__len
)); (void) 0; }); __extension__ ({ struct obstack *__o1 = (__h
); void *value; value = (void *) __o1->object_base; if (__o1
->next_free == value) __o1->maybe_empty_object = 1; __o1
->next_free = (((((__o1->next_free) - (char *) 0)+__o1->
alignment_mask) & ~ (__o1->alignment_mask)) + (char *)
 0); if (__o1->next_free - (char *)__o1->chunk > __o1
->chunk_limit - (char *)__o1->chunk) __o1->next_free
 = __o1->chunk_limit; __o1->object_base = __o1->next_free
; value; }); });
retbuf
  = (char *) symfile_relocate_debug_section (abfd, sectp, (bfd_byte *) buf);
if (retbuf != NULL((void*)0))
  return retbuf;

if (bfd_seek (abfd, sectp->filepos, SEEK_SET0) != 0
    || bfd_bread (buf, size, abfd) != size)
  error ("Dwarf Error: Can't read DWARF data from '%s'",
  bfd_get_filename (abfd)((char *) (abfd)->filename));

return buf;
4942}

4944/* In DWARF version 2, the description of the debugging information is
 stored in a separate .debug_abbrev section.  Before we read any
 dies from a section we read in all abbreviations and install them
 in a hash table.  This function also sets flags in CU describing
 the data found in the abbrev table.  */

4950static void
4951dwarf2_read_abbrevs (bfd *abfd, struct dwarf2_cu *cu)
4952{
struct comp_unit_head *cu_header = &cu->header;
char *abbrev_ptr;
struct abbrev_info *cur_abbrev;
unsigned int abbrev_number, bytes_read, abbrev_name;
unsigned int abbrev_form, hash_number;
struct attr_abbrev *cur_attrs;
unsigned int allocated_attrs;

/* Initialize dwarf2 abbrevs */
obstack_init (&cu->abbrev_obstack)_obstack_begin ((&cu->abbrev_obstack), 0, 0, (void *(*
) (long)) xmalloc, (void (*) (void *)) xfree);
cu->dwarf2_abbrevs = obstack_alloc (&cu->abbrev_obstack,__extension__ ({ struct obstack *__h = (&cu->abbrev_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
((121 * sizeof (struct abbrev_info *)))); if (__o->chunk_limit
 - __o->next_free < __len) _obstack_newchunk (__o, __len
); ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); })
		      (ABBREV_HASH_SIZE__extension__ ({ struct obstack *__h = (&cu->abbrev_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
((121 * sizeof (struct abbrev_info *)))); if (__o->chunk_limit
 - __o->next_free < __len) _obstack_newchunk (__o, __len
); ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); })
		       * sizeof (struct abbrev_info *)))__extension__ ({ struct obstack *__h = (&cu->abbrev_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
((121 * sizeof (struct abbrev_info *)))); if (__o->chunk_limit
 - __o->next_free < __len) _obstack_newchunk (__o, __len
); ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); });
memset (cu->dwarf2_abbrevs, 0,
        ABBREV_HASH_SIZE121 * sizeof (struct abbrev_info *));

abbrev_ptr = dwarf2_per_objfile->abbrev_buffer + cu_header->abbrev_offset;
abbrev_number = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
abbrev_ptr += bytes_read;

allocated_attrs = ATTR_ALLOC_CHUNK4;
cur_attrs = xmalloc (allocated_attrs * sizeof (struct attr_abbrev));

/* loop until we reach an abbrev number of 0 */
while (abbrev_number)
  {
    cur_abbrev = dwarf_alloc_abbrev (cu);

    /* read in abbrev header */
    cur_abbrev->number = abbrev_number;
    cur_abbrev->tag = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
    abbrev_ptr += bytes_read;
    cur_abbrev->has_children = read_1_byte (abfd, abbrev_ptr);
    abbrev_ptr += 1;

    if (cur_abbrev->tag == DW_TAG_namespace)
cu->has_namespace_info = 1;

    /* now read in declarations */
    abbrev_name = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
    abbrev_ptr += bytes_read;
    abbrev_form = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
    abbrev_ptr += bytes_read;
    while (abbrev_name)
{
 if (cur_abbrev->num_attrs == allocated_attrs)
   {
     allocated_attrs += ATTR_ALLOC_CHUNK4;
     cur_attrs
= xrealloc (cur_attrs, (allocated_attrs
			* sizeof (struct attr_abbrev)));
   }

 /* Record whether this compilation unit might have
    inter-compilation-unit references.  If we don't know what form
    this attribute will have, then it might potentially be a
    DW_FORM_ref_addr, so we conservatively expect inter-CU
    references.  */

 if (abbrev_form == DW_FORM_ref_addr
     || abbrev_form == DW_FORM_indirect)
   cu->has_form_ref_addr = 1;

 cur_attrs[cur_abbrev->num_attrs].name = abbrev_name;
 cur_attrs[cur_abbrev->num_attrs++].form = abbrev_form;
 abbrev_name = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
 abbrev_ptr += bytes_read;
 abbrev_form = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
 abbrev_ptr += bytes_read;
}

    cur_abbrev->attrs = obstack_alloc (&cu->abbrev_obstack,__extension__ ({ struct obstack *__h = (&cu->abbrev_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
((cur_abbrev->num_attrs * sizeof (struct attr_abbrev)))); if
 (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); })
			 (cur_abbrev->num_attrs__extension__ ({ struct obstack *__h = (&cu->abbrev_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
((cur_abbrev->num_attrs * sizeof (struct attr_abbrev)))); if
 (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); })
			  * sizeof (struct attr_abbrev)))__extension__ ({ struct obstack *__h = (&cu->abbrev_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
((cur_abbrev->num_attrs * sizeof (struct attr_abbrev)))); if
 (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); });
    memcpy (cur_abbrev->attrs, cur_attrs,
     cur_abbrev->num_attrs * sizeof (struct attr_abbrev));

    hash_number = abbrev_number % ABBREV_HASH_SIZE121;
    cur_abbrev->next = cu->dwarf2_abbrevs[hash_number];
    cu->dwarf2_abbrevs[hash_number] = cur_abbrev;

    /* Get next abbreviation.
       Under Irix6 the abbreviations for a compilation unit are not
       always properly terminated with an abbrev number of 0.
       Exit loop if we encounter an abbreviation which we have
       already read (which means we are about to read the abbreviations
       for the next compile unit) or if the end of the abbreviation
       table is reached.  */
    if ((unsigned int) (abbrev_ptr - dwarf2_per_objfile->abbrev_buffer)
 >= dwarf2_per_objfile->abbrev_size)
break;
    abbrev_number = read_unsigned_leb128 (abfd, abbrev_ptr, &bytes_read);
    abbrev_ptr += bytes_read;
    if (dwarf2_lookup_abbrev (abbrev_number, cu) != NULL((void*)0))
break;
  }

xfree (cur_attrs);
5051}

5053/* Release the memory used by the abbrev table for a compilation unit.  */

5055static void
5056dwarf2_free_abbrev_table (void *ptr_to_cu)
5057{
struct dwarf2_cu *cu = ptr_to_cu;

obstack_free (&cu->abbrev_obstack, NULL)__extension__ ({ struct obstack *__o = (&cu->abbrev_obstack
); void *__obj = (((void*)0)); if (__obj > (void *)__o->
chunk && __obj < (void *)__o->chunk_limit) __o->
next_free = __o->object_base = __obj; else (obstack_free) (
__o, __obj); });
cu->dwarf2_abbrevs = NULL((void*)0);
5062}

5064/* Lookup an abbrev_info structure in the abbrev hash table.  */

5066static struct abbrev_info *
5067dwarf2_lookup_abbrev (unsigned int number, struct dwarf2_cu *cu)
5068{
unsigned int hash_number;
struct abbrev_info *abbrev;

hash_number = number % ABBREV_HASH_SIZE121;
abbrev = cu->dwarf2_abbrevs[hash_number];

while (abbrev)
  {
    if (abbrev->number == number)
return abbrev;
    else
abbrev = abbrev->next;
  }
return NULL((void*)0);
5083}

5085/* Returns nonzero if TAG represents a type that we might generate a partial
 symbol for.  */

5088static int
5089is_type_tag_for_partial (int tag)
5090{
switch (tag)
  {
5093#if 0
  /* Some types that would be reasonable to generate partial symbols for,
     that we don't at present.  */
  case DW_TAG_array_type:
  case DW_TAG_file_type:
  case DW_TAG_ptr_to_member_type:
  case DW_TAG_set_type:
  case DW_TAG_string_type:
  case DW_TAG_subroutine_type:
5102#endif
  case DW_TAG_base_type:
  case DW_TAG_class_type:
  case DW_TAG_enumeration_type:
  case DW_TAG_structure_type:
  case DW_TAG_subrange_type:
  case DW_TAG_typedef:
  case DW_TAG_union_type:
    return 1;
  default:
    return 0;
  }
5114}

5116/* Load all DIEs that are interesting for partial symbols into memory.  */

5118static struct partial_die_info *
5119load_partial_dies (bfd *abfd, char *info_ptr, int building_psymtab,
   struct dwarf2_cu *cu)
5121{
struct partial_die_info *part_die;
struct partial_die_info *parent_die, *last_die, *first_die = NULL((void*)0);
struct abbrev_info *abbrev;
unsigned int bytes_read;

int nesting_level = 1;

parent_die = NULL((void*)0);
last_die = NULL((void*)0);

cu->partial_dies
  = htab_create_alloc_ex (cu->header.length / 12,
	    partial_die_hash,
	    partial_die_eq,
	    NULL((void*)0),
	    &cu->comp_unit_obstack,
	    hashtab_obstack_allocate,
	    dummy_obstack_deallocate);

part_die = obstack_alloc (&cu->comp_unit_obstack,__extension__ ({ struct obstack *__h = (&cu->comp_unit_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct partial_die_info))); if (__o->chunk_limit -
 __o->next_free < __len) _obstack_newchunk (__o, __len)
; ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); })
	    sizeof (struct partial_die_info))__extension__ ({ struct obstack *__h = (&cu->comp_unit_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct partial_die_info))); if (__o->chunk_limit -
 __o->next_free < __len) _obstack_newchunk (__o, __len)
; ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); });

while (1)
  {
    abbrev = peek_die_abbrev (info_ptr, &bytes_read, cu);

    /* A NULL abbrev means the end of a series of children.  */
    if (abbrev == NULL((void*)0))
{
 if (--nesting_level == 0)
   {
     /* PART_DIE was probably the last thing allocated on the
 comp_unit_obstack, so we could call obstack_free
 here.  We don't do that because the waste is small,
 and will be cleaned up when we're done with this
 compilation unit.  This way, we're also more robust
 against other users of the comp_unit_obstack.  */
     return first_die;
   }
 info_ptr += bytes_read;
 last_die = parent_die;
 parent_die = parent_die->die_parent;
 continue;
}

    /* Check whether this DIE is interesting enough to save.  */
    if (!is_type_tag_for_partial (abbrev->tag)
 && abbrev->tag != DW_TAG_enumerator
 && abbrev->tag != DW_TAG_subprogram
 && abbrev->tag != DW_TAG_variable
 && abbrev->tag != DW_TAG_namespace)
{
 /* Otherwise we skip to the next sibling, if any.  */
 info_ptr = skip_one_die (info_ptr + bytes_read, abbrev, cu);
 continue;
}

    info_ptr = read_partial_die (part_die, abbrev, bytes_read,
		   abfd, info_ptr, cu);

    /* This two-pass algorithm for processing partial symbols has a
high cost in cache pressure.  Thus, handle some simple cases
here which cover the majority of C partial symbols.  DIEs
which neither have specification tags in them, nor could have
specification tags elsewhere pointing at them, can simply be
processed and discarded.

This segment is also optional; scan_partial_symbols and
add_partial_symbol will handle these DIEs if we chain
them in normally.  When compilers which do not emit large
quantities of duplicate debug information are more common,
this code can probably be removed.  */

    /* Any complete simple types at the top level (pretty much all
of them, for a language without namespaces), can be processed
directly.  */
    if (parent_die == NULL((void*)0)
 && part_die->has_specification == 0
 && part_die->is_declaration == 0
 && (part_die->tag == DW_TAG_typedef
     || part_die->tag == DW_TAG_base_type
     || part_die->tag == DW_TAG_subrange_type))
{
 if (building_psymtab && part_die->name != NULL((void*)0))
   add_psymbol_to_list (part_die->name, strlen (part_die->name),
		 VAR_DOMAIN, LOC_TYPEDEF,
		 &cu->objfile->static_psymbols,
		 0, (CORE_ADDR) 0, cu->language, cu->objfile);
 info_ptr = locate_pdi_sibling (part_die, info_ptr, abfd, cu);
 continue;
}

    /* If we're at the second level, and we're an enumerator, and
our parent has no specification (meaning possibly lives in a
namespace elsewhere), then we can add the partial symbol now
instead of queueing it.  */
    if (part_die->tag == DW_TAG_enumerator
 && parent_die != NULL((void*)0)
 && parent_die->die_parent == NULL((void*)0)
 && parent_die->tag == DW_TAG_enumeration_type
 && parent_die->has_specification == 0)
{
 if (part_die->name == NULL((void*)0))
   complaint (&symfile_complaints, "malformed enumerator DIE ignored");
 else if (building_psymtab)
   add_psymbol_to_list (part_die->name, strlen (part_die->name),
		 VAR_DOMAIN, LOC_CONST,
		 (cu->language == language_cplus
		  || cu->language == language_java)
		 ? &cu->objfile->global_psymbols
		 : &cu->objfile->static_psymbols,
		 0, (CORE_ADDR) 0, cu->language, cu->objfile);

 info_ptr = locate_pdi_sibling (part_die, info_ptr, abfd, cu);
 continue;
}

    /* We'll save this DIE so link it in.  */
    part_die->die_parent = parent_die;
    part_die->die_sibling = NULL((void*)0);
    part_die->die_child = NULL((void*)0);

    if (last_die && last_die == parent_die)
last_die->die_child = part_die;
    else if (last_die)
last_die->die_sibling = part_die;

    last_die = part_die;

    if (first_die == NULL((void*)0))
first_die = part_die;

    /* Maybe add the DIE to the hash table.  Not all DIEs that we
find interesting need to be in the hash table, because we
also have the parent/sibling/child chains; only those that we
might refer to by offset later during partial symbol reading.

For now this means things that might have be the target of a
DW_AT_specification, DW_AT_abstract_origin, or
DW_AT_extension.  DW_AT_extension will refer only to
namespaces; DW_AT_abstract_origin refers to functions (and
many things under the function DIE, but we do not recurse
into function DIEs during partial symbol reading) and
possibly variables as well; DW_AT_specification refers to
declarations.  Declarations ought to have the DW_AT_declaration
flag.  It happens that GCC forgets to put it in sometimes, but
only for functions, not for types.

Adding more things than necessary to the hash table is harmless
except for the performance cost.  Adding too few will result in
internal errors in find_partial_die.  */

    if (abbrev->tag == DW_TAG_subprogram
 || abbrev->tag == DW_TAG_variable
 || abbrev->tag == DW_TAG_namespace
 || part_die->is_declaration)
{
 void **slot;

 slot = htab_find_slot_with_hash (cu->partial_dies, part_die,
			   part_die->offset, INSERT);
 *slot = part_die;
}

    part_die = obstack_alloc (&cu->comp_unit_obstack,__extension__ ({ struct obstack *__h = (&cu->comp_unit_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct partial_die_info))); if (__o->chunk_limit -
 __o->next_free < __len) _obstack_newchunk (__o, __len)
; ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); })
		sizeof (struct partial_die_info))__extension__ ({ struct obstack *__h = (&cu->comp_unit_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct partial_die_info))); if (__o->chunk_limit -
 __o->next_free < __len) _obstack_newchunk (__o, __len)
; ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); });

    /* For some DIEs we want to follow their children (if any).  For C
       we have no reason to follow the children of structures; for other
languages we have to, both so that we can get at method physnames
to infer fully qualified class names, and for DW_AT_specification.  */
    if (last_die->has_children
 && (last_die->tag == DW_TAG_namespace
     || last_die->tag == DW_TAG_enumeration_type
     || (cu->language != language_c
  && (last_die->tag == DW_TAG_class_type
      || last_die->tag == DW_TAG_structure_type
      || last_die->tag == DW_TAG_union_type))))
{
 nesting_level++;
 parent_die = last_die;
 continue;
}

    /* Otherwise we skip to the next sibling, if any.  */
    info_ptr = locate_pdi_sibling (last_die, info_ptr, abfd, cu);

    /* Back to the top, do it again.  */
  }
5311}

5313/* Read a minimal amount of information into the minimal die structure.  */

5315static char *
5316read_partial_die (struct partial_die_info *part_die,
  struct abbrev_info *abbrev,
  unsigned int abbrev_len, bfd *abfd,
  char *info_ptr, struct dwarf2_cu *cu)
5320{
unsigned int bytes_read, i;
struct attribute attr;
int has_low_pc_attr = 0;
int has_high_pc_attr = 0;

memset (part_die, 0, sizeof (struct partial_die_info));

part_die->offset = info_ptr - dwarf2_per_objfile->info_buffer;

info_ptr += abbrev_len;

if (abbrev == NULL((void*)0))
  return info_ptr;

part_die->tag = abbrev->tag;
part_die->has_children = abbrev->has_children;

for (i = 0; i < abbrev->num_attrs; ++i)
  {
    info_ptr = read_attribute (&attr, &abbrev->attrs[i], abfd, info_ptr, cu);

    /* Store the data if it is of an attribute we want to keep in a
       partial symbol table.  */
    switch (attr.name)
{
case DW_AT_name:

 /* Prefer DW_AT_MIPS_linkage_name over DW_AT_name.  */
 if (part_die->name == NULL((void*)0))
   part_die->name = DW_STRING (&attr)((&attr)->u.str);
 break;
case DW_AT_comp_dir:
 if (part_die->dirname == NULL((void*)0))
   part_die->dirname = DW_STRING (&attr)((&attr)->u.str);
 break;
case DW_AT_MIPS_linkage_name:
 part_die->name = DW_STRING (&attr)((&attr)->u.str);
 break;
case DW_AT_low_pc:
 has_low_pc_attr = 1;
 part_die->lowpc = DW_ADDR (&attr)((&attr)->u.addr);
 break;
case DW_AT_high_pc:
 has_high_pc_attr = 1;
 part_die->highpc = DW_ADDR (&attr)((&attr)->u.addr);
 break;
case DW_AT_location:
        /* Support the .debug_loc offsets */
        if (attr_form_is_block (&attr))
          {
      part_die->locdesc = DW_BLOCK (&attr)((&attr)->u.blk);
          }
        else if (attr.form == DW_FORM_data4 || attr.form == DW_FORM_data8)
          {
     dwarf2_complex_location_expr_complaint ();
          }
        else
          {
     dwarf2_invalid_attrib_class_complaint ("DW_AT_location",
				     "partial symbol information");
          }
 break;
case DW_AT_language:
 part_die->language = DW_UNSND (&attr)((&attr)->u.unsnd);
 break;
case DW_AT_external:
 part_die->is_external = DW_UNSND (&attr)((&attr)->u.unsnd);
 break;
case DW_AT_declaration:
 part_die->is_declaration = DW_UNSND (&attr)((&attr)->u.unsnd);
 break;
case DW_AT_type:
 part_die->has_type = 1;
 break;
case DW_AT_abstract_origin:
case DW_AT_specification:
case DW_AT_extension:
 part_die->has_specification = 1;
 part_die->spec_offset = dwarf2_get_ref_die_offset (&attr, cu);
 break;
case DW_AT_sibling:
 /* Ignore absolute siblings, they might point outside of
    the current compile unit.  */
 if (attr.form == DW_FORM_ref_addr)
   complaint (&symfile_complaints, "ignoring absolute DW_AT_sibling");
 else
   part_die->sibling = dwarf2_per_objfile->info_buffer
     + dwarf2_get_ref_die_offset (&attr, cu);
 break;
      case DW_AT_stmt_list:
        part_die->has_stmt_list = 1;
        part_die->line_offset = DW_UNSND (&attr)((&attr)->u.unsnd);
        break;
default:
 break;
}
  }

/* When using the GNU linker, .gnu.linkonce. sections are used to
   eliminate duplicate copies of functions and vtables and such.
   The linker will arbitrarily choose one and discard the others.
   The AT_*_pc values for such functions refer to local labels in
   these sections.  If the section from that file was discarded, the
   labels are not in the output, so the relocs get a value of 0.
   If this is a discarded function, mark the pc bounds as invalid,
   so that GDB will ignore it.  */
if (has_low_pc_attr && has_high_pc_attr
    && part_die->lowpc < part_die->highpc
    && (part_die->lowpc != 0
 || (bfd_get_file_flags (abfd)((abfd)->flags) & HAS_RELOC0x01)))
  part_die->has_pc_info = 1;
return info_ptr;
5433}

5435/* Find a cached partial DIE at OFFSET in CU.  */

5437static struct partial_die_info *
5438find_partial_die_in_comp_unit (unsigned long offset, struct dwarf2_cu *cu)
5439{
struct partial_die_info *lookup_die = NULL((void*)0);
struct partial_die_info part_die;

part_die.offset = offset;
lookup_die = htab_find_with_hash (cu->partial_dies, &part_die, offset);

if (lookup_die == NULL((void*)0))
  internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", __LINE__5447,
    "could not find partial DIE in cache\n");

return lookup_die;
5451}

5453/* Find a partial DIE at OFFSET, which may or may not be in CU.  */

5455static struct partial_die_info *
5456find_partial_die (unsigned long offset, struct dwarf2_cu *cu)
5457{
struct dwarf2_per_cu_data *per_cu;

if (offset >= cu->header.offset
    && offset < cu->header.offset + cu->header.length)
  return find_partial_die_in_comp_unit (offset, cu);

per_cu = dwarf2_find_containing_comp_unit (offset, cu->objfile);

if (per_cu->cu == NULL((void*)0))
  {
    load_comp_unit (per_cu, cu->objfile);
    per_cu->cu->read_in_chain = dwarf2_per_objfile->read_in_chain;
    dwarf2_per_objfile->read_in_chain = per_cu;
  }

per_cu->cu->last_used = 0;
return find_partial_die_in_comp_unit (offset, per_cu->cu);
5475}

5477/* Adjust PART_DIE before generating a symbol for it.  This function
 may set the is_external flag or change the DIE's name.  */

5480static void
5481fixup_partial_die (struct partial_die_info *part_die,
   struct dwarf2_cu *cu)
5483{
/* If we found a reference attribute and the DIE has no name, try
   to find a name in the referred to DIE.  */

if (part_die->name == NULL((void*)0) && part_die->has_specification)
  {
    struct partial_die_info *spec_die;

    spec_die = find_partial_die (part_die->spec_offset, cu);

    fixup_partial_die (spec_die, cu);

    if (spec_die->name)
{
 part_die->name = spec_die->name;

 /* Copy DW_AT_external attribute if it is set.  */
 if (spec_die->is_external)
   part_die->is_external = spec_die->is_external;
}
  }

/* Set default names for some unnamed DIEs.  */
if (part_die->name == NULL((void*)0) && (part_die->tag == DW_TAG_structure_type
		 || part_die->tag == DW_TAG_class_type))
  part_die->name = "(anonymous class)";

if (part_die->name == NULL((void*)0) && part_die->tag == DW_TAG_namespace)
  part_die->name = "(anonymous namespace)";

if (part_die->tag == DW_TAG_structure_type
    || part_die->tag == DW_TAG_class_type
    || part_die->tag == DW_TAG_union_type)
  guess_structure_name (part_die, cu);
5517}

5519/* Read the die from the .debug_info section buffer.  Set DIEP to
 point to a newly allocated die with its information, except for its
 child, sibling, and parent fields.  Set HAS_CHILDREN to tell
 whether the die has children or not.  */

5524static char *
5525read_full_die (struct die_info **diep, bfd *abfd, char *info_ptr,
      struct dwarf2_cu *cu, int *has_children)
5527{
unsigned int abbrev_number, bytes_read, i, offset;
struct abbrev_info *abbrev;
struct die_info *die;

offset = info_ptr - dwarf2_per_objfile->info_buffer;
abbrev_number = read_unsigned_leb128 (abfd, info_ptr, &bytes_read);
info_ptr += bytes_read;
if (!abbrev_number)
  {
    die = dwarf_alloc_die ();
    die->tag = 0;
    die->abbrev = abbrev_number;
    die->type = NULL((void*)0);
    *diep = die;
    *has_children = 0;
    return info_ptr;
  }

abbrev = dwarf2_lookup_abbrev (abbrev_number, cu);
if (!abbrev)
  {
    error ("Dwarf Error: could not find abbrev number %d [in module %s]",
    abbrev_number,
    bfd_get_filename (abfd)((char *) (abfd)->filename));
  }
die = dwarf_alloc_die ();
die->offset = offset;
die->tag = abbrev->tag;
die->abbrev = abbrev_number;
die->type = NULL((void*)0);

die->num_attrs = abbrev->num_attrs;
die->attrs = (struct attribute *)
  xmalloc (die->num_attrs * sizeof (struct attribute));

for (i = 0; i < abbrev->num_attrs; ++i)
  {
    info_ptr = read_attribute (&die->attrs[i], &abbrev->attrs[i],
		 abfd, info_ptr, cu);

    /* If this attribute is an absolute reference to a different
compilation unit, make sure that compilation unit is loaded
also.  */
    if (die->attrs[i].form == DW_FORM_ref_addr
 && (DW_ADDR (&die->attrs[i])((&die->attrs[i])->u.addr) < cu->header.offset
     || (DW_ADDR (&die->attrs[i])((&die->attrs[i])->u.addr)
  >= cu->header.offset + cu->header.length)))
{
 struct dwarf2_per_cu_data *per_cu;
 per_cu = dwarf2_find_containing_comp_unit (DW_ADDR (&die->attrs[i])((&die->attrs[i])->u.addr),
				     cu->objfile);

 /* Mark the dependence relation so that we don't flush PER_CU
    too early.  */
 dwarf2_add_dependence (cu, per_cu);

 /* If it's already on the queue, we have nothing to do.  */
 if (per_cu->queued)
   continue;

 /* If the compilation unit is already loaded, just mark it as
    used.  */
 if (per_cu->cu != NULL((void*)0))
   {
     per_cu->cu->last_used = 0;
     continue;
   }

 /* Add it to the queue.  */
 queue_comp_unit (per_cu);
     }
  }

*diep = die;
*has_children = abbrev->has_children;
return info_ptr;
5604}

5606/* Read an attribute value described by an attribute form.  */

5608static char *
5609read_attribute_value (struct attribute *attr, unsigned form,
      bfd *abfd, char *info_ptr,
      struct dwarf2_cu *cu)
5612{
struct comp_unit_head *cu_header = &cu->header;
unsigned int bytes_read;
struct dwarf_block *blk;

attr->form = form;
switch (form)
  {
  case DW_FORM_addr:
  case DW_FORM_ref_addr:
    DW_ADDR (attr)((attr)->u.addr) = read_address (abfd, info_ptr, cu, &bytes_read);
    info_ptr += bytes_read;
    break;
  case DW_FORM_block2:
    blk = dwarf_alloc_block (cu);
    blk->size = read_2_bytes (abfd, info_ptr);
    info_ptr += 2;
    blk->data = read_n_bytes (abfd, info_ptr, blk->size);
    info_ptr += blk->size;
    DW_BLOCK (attr)((attr)->u.blk) = blk;
    break;
  case DW_FORM_block4:
    blk = dwarf_alloc_block (cu);
    blk->size = read_4_bytes (abfd, info_ptr);
    info_ptr += 4;
    blk->data = read_n_bytes (abfd, info_ptr, blk->size);
    info_ptr += blk->size;
    DW_BLOCK (attr)((attr)->u.blk) = blk;
    break;
  case DW_FORM_data2:
    DW_UNSND (attr)((attr)->u.unsnd) = read_2_bytes (abfd, info_ptr);
    info_ptr += 2;
    break;
  case DW_FORM_data4:
    DW_UNSND (attr)((attr)->u.unsnd) = read_4_bytes (abfd, info_ptr);
    info_ptr += 4;
    break;
  case DW_FORM_data8:
    DW_UNSND (attr)((attr)->u.unsnd) = read_8_bytes (abfd, info_ptr);
    info_ptr += 8;
    break;
  case DW_FORM_string:
    DW_STRING (attr)((attr)->u.str) = read_string (abfd, info_ptr, &bytes_read);
    info_ptr += bytes_read;
    break;
  case DW_FORM_strp:
    DW_STRING (attr)((attr)->u.str) = read_indirect_string (abfd, info_ptr, cu_header,
			       &bytes_read);
    info_ptr += bytes_read;
    break;
  case DW_FORM_block:
    blk = dwarf_alloc_block (cu);
    blk->size = read_unsigned_leb128 (abfd, info_ptr, &bytes_read);
    info_ptr += bytes_read;
    blk->data = read_n_bytes (abfd, info_ptr, blk->size);
    info_ptr += blk->size;
    DW_BLOCK (attr)((attr)->u.blk) = blk;
    break;
  case DW_FORM_block1:
    blk = dwarf_alloc_block (cu);
    blk->size = read_1_byte (abfd, info_ptr);
    info_ptr += 1;
    blk->data = read_n_bytes (abfd, info_ptr, blk->size);
    info_ptr += blk->size;
    DW_BLOCK (attr)((attr)->u.blk) = blk;
    break;
  case DW_FORM_data1:
    DW_UNSND (attr)((attr)->u.unsnd) = read_1_byte (abfd, info_ptr);
    info_ptr += 1;
    break;
  case DW_FORM_flag:
    DW_UNSND (attr)((attr)->u.unsnd) = read_1_byte (abfd, info_ptr);
    info_ptr += 1;
    break;
  case DW_FORM_sdata:
    DW_SND (attr)((attr)->u.snd) = read_signed_leb128 (abfd, info_ptr, &bytes_read);
    info_ptr += bytes_read;
    break;
  case DW_FORM_udata:
    DW_UNSND (attr)((attr)->u.unsnd) = read_unsigned_leb128 (abfd, info_ptr, &bytes_read);
    info_ptr += bytes_read;
    break;
  case DW_FORM_ref1:
    DW_ADDR (attr)((attr)->u.addr) = cu->header.offset + read_1_byte (abfd, info_ptr);
    info_ptr += 1;
    break;
  case DW_FORM_ref2:
    DW_ADDR (attr)((attr)->u.addr) = cu->header.offset + read_2_bytes (abfd, info_ptr);
    info_ptr += 2;
    break;
  case DW_FORM_ref4:
    DW_ADDR (attr)((attr)->u.addr) = cu->header.offset + read_4_bytes (abfd, info_ptr);
    info_ptr += 4;
    break;
  case DW_FORM_ref8:
    DW_ADDR (attr)((attr)->u.addr) = cu->header.offset + read_8_bytes (abfd, info_ptr);
    info_ptr += 8;
    break;
  case DW_FORM_ref_udata:
    DW_ADDR (attr)((attr)->u.addr) = (cu->header.offset
	+ read_unsigned_leb128 (abfd, info_ptr, &bytes_read));
    info_ptr += bytes_read;
    break;
  case DW_FORM_indirect:
    form = read_unsigned_leb128 (abfd, info_ptr, &bytes_read);
    info_ptr += bytes_read;
    info_ptr = read_attribute_value (attr, form, abfd, info_ptr, cu);
    break;
  default:
    error ("Dwarf Error: Cannot handle %s in DWARF reader [in module %s]",
    dwarf_form_name (form),
    bfd_get_filename (abfd)((char *) (abfd)->filename));
  }
return info_ptr;
5726}

5728/* Read an attribute described by an abbreviated attribute.  */

5730static char *
5731read_attribute (struct attribute *attr, struct attr_abbrev *abbrev,
bfd *abfd, char *info_ptr, struct dwarf2_cu *cu)
5733{
attr->name = abbrev->name;
return read_attribute_value (attr, abbrev->form, abfd, info_ptr, cu);
5736}

5738/* read dwarf information from a buffer */

5740static unsigned int
5741read_1_byte (bfd *abfd, char *buf)
5742{
return bfd_get_8 (abfd, (bfd_byte *) buf)(*(unsigned char *) ((bfd_byte *) buf) & 0xff);
5744}

5746static int
5747read_1_signed_byte (bfd *abfd, char *buf)
5748{
return bfd_get_signed_8 (abfd, (bfd_byte *) buf)(((*(unsigned char *) ((bfd_byte *) buf) & 0xff) ^ 0x80) -
 0x80);
5750}

5752static unsigned int
5753read_2_bytes (bfd *abfd, char *buf)
5754{
return bfd_get_16 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx16)) ((bfd_byte *) buf));
5756}

5758static int
5759read_2_signed_bytes (bfd *abfd, char *buf)
5760{
return bfd_get_signed_16 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx_signed_16)) ((bfd_byte *) buf
));
5762}

5764static unsigned int
5765read_4_bytes (bfd *abfd, char *buf)
5766{
return bfd_get_32 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx32)) ((bfd_byte *) buf));
5768}

5770static int
5771read_4_signed_bytes (bfd *abfd, char *buf)
5772{
return bfd_get_signed_32 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx_signed_32)) ((bfd_byte *) buf
));
5774}

5776static unsigned long
5777read_8_bytes (bfd *abfd, char *buf)
5778{
return bfd_get_64 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx64)) ((bfd_byte *) buf));
5780}

5782static CORE_ADDR
5783read_address (bfd *abfd, char *buf, struct dwarf2_cu *cu, int *bytes_read)
5784{
struct comp_unit_head *cu_header = &cu->header;
CORE_ADDR retval = 0;

if (cu_header->signed_addr_p)
  {
    switch (cu_header->addr_size)
{
case 2:
 retval = bfd_get_signed_16 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx_signed_16)) ((bfd_byte *) buf
));
 break;
case 4:
 retval = bfd_get_signed_32 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx_signed_32)) ((bfd_byte *) buf
));
 break;
case 8:
 retval = bfd_get_signed_64 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx_signed_64)) ((bfd_byte *) buf
));
 break;
default:
 internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", __LINE__5802,
	  "read_address: bad switch, signed [in module %s]",
	  bfd_get_filename (abfd)((char *) (abfd)->filename));
}
  }
else
  {
    switch (cu_header->addr_size)
{
case 2:
 retval = bfd_get_16 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx16)) ((bfd_byte *) buf));
 break;
case 4:
 retval = bfd_get_32 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx32)) ((bfd_byte *) buf));
 break;
case 8:
 retval = bfd_get_64 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx64)) ((bfd_byte *) buf));
 break;
default:
 internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", __LINE__5821,
	  "read_address: bad switch, unsigned [in module %s]",
	  bfd_get_filename (abfd)((char *) (abfd)->filename));
}
  }

*bytes_read = cu_header->addr_size;
return retval;
5829}

5831/* Read the initial length from a section.  The (draft) DWARF 3
 specification allows the initial length to take up either 4 bytes
 or 12 bytes.  If the first 4 bytes are 0xffffffff, then the next 8
 bytes describe the length and all offsets will be 8 bytes in length
 instead of 4.

 An older, non-standard 64-bit format is also handled by this
 function.  The older format in question stores the initial length
 as an 8-byte quantity without an escape value.  Lengths greater
 than 2^32 aren't very common which means that the initial 4 bytes
 is almost always zero.  Since a length value of zero doesn't make
 sense for the 32-bit format, this initial zero can be considered to
 be an escape value which indicates the presence of the older 64-bit
 format.  As written, the code can't detect (old format) lengths
 greater than 4GB.  If it becomes necessary to handle lengths
 somewhat larger than 4GB, we could allow other small values (such
 as the non-sensical values of 1, 2, and 3) to also be used as
 escape values indicating the presence of the old format.

 The value returned via bytes_read should be used to increment the
 relevant pointer after calling read_initial_length().
 
 As a side effect, this function sets the fields initial_length_size
 and offset_size in cu_header to the values appropriate for the
 length field.  (The format of the initial length field determines
 the width of file offsets to be fetched later with read_offset().)
 
 [ Note:  read_initial_length() and read_offset() are based on the
   document entitled "DWARF Debugging Information Format", revision
   3, draft 8, dated November 19, 2001.  This document was obtained
   from:

http://reality.sgiweb.org/davea/dwarf3-draft8-011125.pdf
   
   This document is only a draft and is subject to change.  (So beware.)

   Details regarding the older, non-standard 64-bit format were
   determined empirically by examining 64-bit ELF files produced by
   the SGI toolchain on an IRIX 6.5 machine.

   - Kevin, July 16, 2002
 ] */

5874static LONGESTlong
5875read_initial_length (bfd *abfd, char *buf, struct comp_unit_head *cu_header,
                   int *bytes_read)
5877{
LONGESTlong length = bfd_get_32 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx32)) ((bfd_byte *) buf));

if (length == 0xffffffff)
  {
    length = bfd_get_64 (abfd, (bfd_byte *) buf + 4)((*((abfd)->xvec->bfd_getx64)) ((bfd_byte *) buf + 4));
    *bytes_read = 12;
  }
else if (length == 0)
  {
    /* Handle the (non-standard) 64-bit DWARF2 format used by IRIX.  */
    length = bfd_get_64 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx64)) ((bfd_byte *) buf));
    *bytes_read = 8;
  }
else
  {
    *bytes_read = 4;
  }

if (cu_header)
  {
    gdb_assert (cu_header->initial_length_size == 0((void) ((cu_header->initial_length_size == 0 || cu_header
->initial_length_size == 4 || cu_header->initial_length_size
 == 8 || cu_header->initial_length_size == 12) ? 0 : (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", 5901, "%s: Assertion `%s' failed."
, __PRETTY_FUNCTION__, "cu_header->initial_length_size == 0 || cu_header->initial_length_size == 4 || cu_header->initial_length_size == 8 || cu_header->initial_length_size == 12"
), 0)))
  || cu_header->initial_length_size == 4((void) ((cu_header->initial_length_size == 0 || cu_header
->initial_length_size == 4 || cu_header->initial_length_size
 == 8 || cu_header->initial_length_size == 12) ? 0 : (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", 5901, "%s: Assertion `%s' failed."
, __PRETTY_FUNCTION__, "cu_header->initial_length_size == 0 || cu_header->initial_length_size == 4 || cu_header->initial_length_size == 8 || cu_header->initial_length_size == 12"
), 0)))
  || cu_header->initial_length_size == 8((void) ((cu_header->initial_length_size == 0 || cu_header
->initial_length_size == 4 || cu_header->initial_length_size
 == 8 || cu_header->initial_length_size == 12) ? 0 : (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", 5901, "%s: Assertion `%s' failed."
, __PRETTY_FUNCTION__, "cu_header->initial_length_size == 0 || cu_header->initial_length_size == 4 || cu_header->initial_length_size == 8 || cu_header->initial_length_size == 12"
), 0)))
  || cu_header->initial_length_size == 12)((void) ((cu_header->initial_length_size == 0 || cu_header
->initial_length_size == 4 || cu_header->initial_length_size
 == 8 || cu_header->initial_length_size == 12) ? 0 : (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", 5901, "%s: Assertion `%s' failed."
, __PRETTY_FUNCTION__, "cu_header->initial_length_size == 0 || cu_header->initial_length_size == 4 || cu_header->initial_length_size == 8 || cu_header->initial_length_size == 12"
), 0)));

    if (cu_header->initial_length_size != 0
 && cu_header->initial_length_size != *bytes_read)
complaint (&symfile_complaints,
   "intermixed 32-bit and 64-bit DWARF sections");

    cu_header->initial_length_size = *bytes_read;
    cu_header->offset_size = (*bytes_read == 4) ? 4 : 8;
  }

return length;
5913}

5915/* Read an offset from the data stream.  The size of the offset is
 given by cu_header->offset_size.  */

5918static LONGESTlong
5919read_offset (bfd *abfd, char *buf, const struct comp_unit_head *cu_header,
           int *bytes_read)
5921{
LONGESTlong retval = 0;

switch (cu_header->offset_size)
  {
  case 4:
    retval = bfd_get_32 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx32)) ((bfd_byte *) buf));
    *bytes_read = 4;
    break;
  case 8:
    retval = bfd_get_64 (abfd, (bfd_byte *) buf)((*((abfd)->xvec->bfd_getx64)) ((bfd_byte *) buf));
    *bytes_read = 8;
    break;
  default:
    internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c", __LINE__5935,
      "read_offset: bad switch [in module %s]",
      bfd_get_filename (abfd)((char *) (abfd)->filename));
  }

return retval;
5941}

5943static char *
5944read_n_bytes (bfd *abfd, char *buf, unsigned int size)
5945{
/* If the size of a host char is 8 bits, we can return a pointer
   to the buffer, otherwise we have to copy the data to a buffer
   allocated on the temporary obstack.  */
gdb_assert (HOST_CHAR_BIT == 8)((void) ((8 == 8) ? 0 : (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 5949, "%s: Assertion `%s' failed.", __PRETTY_FUNCTION__, "HOST_CHAR_BIT == 8"
), 0)));
return buf;
5951}

5953static char *
5954read_string (bfd *abfd, char *buf, unsigned int *bytes_read_ptr)
5955{
/* If the size of a host char is 8 bits, we can return a pointer
   to the string, otherwise we have to copy the string to a buffer
   allocated on the temporary obstack.  */
gdb_assert (HOST_CHAR_BIT == 8)((void) ((8 == 8) ? 0 : (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 5959, "%s: Assertion `%s' failed.", __PRETTY_FUNCTION__, "HOST_CHAR_BIT == 8"
), 0)));
if (*buf == '\0')
  {
    *bytes_read_ptr = 1;
    return NULL((void*)0);
  }
*bytes_read_ptr = strlen (buf) + 1;
return buf;
5967}

5969static char *
5970read_indirect_string (bfd *abfd, char *buf,
      const struct comp_unit_head *cu_header,
      unsigned int *bytes_read_ptr)
5973{
LONGESTlong str_offset = read_offset (abfd, buf, cu_header,
		    (int *) bytes_read_ptr);

if (dwarf2_per_objfile->str_buffer == NULL((void*)0))
  {
    error ("DW_FORM_strp used without .debug_str section [in module %s]",
      bfd_get_filename (abfd)((char *) (abfd)->filename));
    return NULL((void*)0);
  }
if (str_offset >= dwarf2_per_objfile->str_size)
  {
    error ("DW_FORM_strp pointing outside of .debug_str section [in module %s]",
      bfd_get_filename (abfd)((char *) (abfd)->filename));
    return NULL((void*)0);
  }
gdb_assert (HOST_CHAR_BIT == 8)((void) ((8 == 8) ? 0 : (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dwarf2read.c"
, 5989, "%s: Assertion `%s' failed.", __PRETTY_FUNCTION__, "HOST_CHAR_BIT == 8"
), 0)));
if (dwarf2_per_objfile->str_buffer[str_offset] == '\0')
  return NULL((void*)0);
return dwarf2_per_objfile->str_buffer + str_offset;
5993}

5995static unsigned long
5996read_unsigned_leb128 (bfd *abfd, char *buf, unsigned int *bytes_read_ptr)
5997{
unsigned long result;
unsigned int num_read;
int i, shift;
unsigned char byte;

result = 0;
shift = 0;
num_read = 0;
i = 0;
while (1)
  {
    byte = bfd_get_8 (abfd, (bfd_byte *) buf)(*(unsigned char *) ((bfd_byte *) buf) & 0xff);
    buf++;
    num_read++;
    result |= ((unsigned long)(byte & 127) << shift);
    if ((byte & 128) == 0)
{
 break;
}
    shift += 7;
  }
*bytes_read_ptr = num_read;
return result;
6021}

6023static long
6024read_signed_leb128 (bfd *abfd, char *buf, unsigned int *bytes_read_ptr)
6025{
long result;
int i, shift, size, num_read;
unsigned char byte;

result = 0;
shift = 0;
size = 32;
num_read = 0;
i = 0;
while (1)
  {
    byte = bfd_get_8 (abfd, (bfd_byte *) buf)(*(unsigned char *) ((bfd_byte *) buf) & 0xff);
    buf++;
    num_read++;
    result |= ((long)(byte & 127) << shift);
    shift += 7;
    if ((byte & 128) == 0)
{
 break;
}
  }
if ((shift < size) && (byte & 0x40))
  {
    result |= -(1 << shift);
  }
*bytes_read_ptr = num_read;
return result;
6053}

6055/* Return a pointer to just past the end of an LEB128 number in BUF.  */

6057static char *
6058skip_leb128 (bfd *abfd, char *buf)
6059{
int byte;

while (1)
  {
    byte = bfd_get_8 (abfd, (bfd_byte *) buf)(*(unsigned char *) ((bfd_byte *) buf) & 0xff);
    buf++;
    if ((byte & 128) == 0)
return buf;
  }
6069}

6071static void
6072set_cu_language (unsigned int lang, struct dwarf2_cu *cu)
6073{
switch (lang)
  {
  case DW_LANG_C89:
  case DW_LANG_C:
    cu->language = language_c;
    break;
  case DW_LANG_C_plus_plus:
    cu->language = language_cplus;
    break;