/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c

Bug Summary

File:	src/gnu/usr.bin/binutils-2.17/ld/ldlang.c
Warning:	line 1400, column 36 Dereference of null pointer (loaded from variable 'ps')
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 ldlang.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-2.17/obj/ld -resource-dir /usr/local/lib/clang/13.0.0 -D HAVE_CONFIG_H -I . -I /usr/src/gnu/usr.bin/binutils-2.17/ld -I . -D _GNU_SOURCE -I . -I /usr/src/gnu/usr.bin/binutils-2.17/ld -I ../bfd -I /usr/src/gnu/usr.bin/binutils-2.17/ld/../bfd -I /usr/src/gnu/usr.bin/binutils-2.17/ld/../include -I /usr/src/gnu/usr.bin/binutils-2.17/ld/../intl -I ../intl -D PIE_DEFAULT=1 -D LOCALEDIR="/usr/share/locale" -D PIE_DEFAULT=1 -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -Wno-null-pointer-arithmetic -fdebug-compilation-dir=/usr/src/gnu/usr.bin/binutils-2.17/obj/ld -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -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-2.17/ld/ldlang.c
1/* Linker command language support.
 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
 2001, 2002, 2003, 2004, 2005, 2006
 Free Software Foundation, Inc.

 This file is part of GLD, the Gnu Linker.

 GLD 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, or (at your option)
 any later version.

 GLD 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 GLD; see the file COPYING.  If not, write to the Free
 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
 02110-1301, USA.  */

23#include "bfd.h"
24#include "sysdep.h"
25#include "libiberty.h"
26#include "safe-ctype.h"
27#include "obstack.h"
28#include "bfdlink.h"

30#include "ld.h"
31#include "ldmain.h"
32#include "ldexp.h"
33#include "ldlang.h"
34#include <ldgram.h>
35#include "ldlex.h"
36#include "ldmisc.h"
37#include "ldctor.h"
38#include "ldfile.h"
39#include "ldemul.h"
40#include "fnmatch.h"
41#include "demangle.h"
42#include "hashtab.h"

44#ifndef offsetof
45#define offsetof(TYPE, MEMBER)__builtin_offsetof(TYPE, MEMBER) ((size_t) & (((TYPE*) 0)->MEMBER))
46#endif

48/* Locals variables.  */
49static struct obstack stat_obstack;
50static struct obstack map_obstack;

52#define obstack_chunk_allocxmalloc xmalloc
53#define obstack_chunk_freefree free
54static const char *startup_file;
55static lang_statement_list_type input_file_chain;
56static bfd_boolean placed_commons = FALSE0;
57static bfd_boolean stripped_excluded_sections = FALSE0;
58static lang_output_section_statement_type *default_common_section;
59static bfd_boolean map_option_f;
60static bfd_vma print_dot;
61static lang_input_statement_type *first_file;
62static const char *current_target;
63static const char *output_target;
64static lang_statement_list_type statement_list;
65static struct lang_phdr *lang_phdr_list;
66static struct bfd_hash_table lang_definedness_table;

68/* Forward declarations.  */
69static void exp_init_os (etree_type *);
70static void init_map_userdata (bfd *, asection *, void *);
71static lang_input_statement_type *lookup_name (const char *);
72static bfd_boolean load_symbols (lang_input_statement_type *,
		 lang_statement_list_type *);
74static struct bfd_hash_entry *lang_definedness_newfunc
(struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
76static void insert_undefined (const char *);
77static void print_all_symbols (asection *);
78static bfd_boolean sort_def_symbol (struct bfd_link_hash_entry *, void *);
79static void print_statement (lang_statement_union_type *,
	     lang_output_section_statement_type *);
81static void print_statement_list (lang_statement_union_type *,
		  lang_output_section_statement_type *);
83static void print_statements (void);
84static void print_input_section (asection *);
85static bfd_boolean lang_one_common (struct bfd_link_hash_entry *, void *);
86static void lang_record_phdrs (void);
87static void lang_do_version_exports_section (void);

89/* Exported variables.  */
90lang_output_section_statement_type *abs_output_section;
91lang_statement_list_type lang_output_section_statement;
92lang_statement_list_type *stat_ptr = &statement_list;
93lang_statement_list_type file_chain = { NULL((void*)0), NULL((void*)0) };
94struct bfd_sym_chain entry_symbol = { NULL((void*)0), NULL((void*)0) };
95static const char *entry_symbol_default = "start";
96const char *entry_section = ".text";
97bfd_boolean entry_from_cmdline;
98bfd_boolean lang_has_input_file = FALSE0;
99bfd_boolean had_output_filename = FALSE0;
100bfd_boolean lang_float_flag = FALSE0;
101bfd_boolean delete_output_file_on_failure = FALSE0;
102struct lang_nocrossrefs *nocrossref_list;
103static struct unique_sections *unique_section_list;
104static bfd_boolean ldlang_sysrooted_script = FALSE0;

/* Functions that traverse the linker script and might evaluate
  DEFINED() need to increment this.  */
108int lang_statement_iteration = 0;

110etree_type *base; /* Relocation base - or null */

112/* Return TRUE if the PATTERN argument is a wildcard pattern.
 Although backslashes are treated specially if a pattern contains
 wildcards, we do not consider the mere presence of a backslash to
 be enough to cause the pattern to be treated as a wildcard.
 That lets us handle DOS filenames more naturally.  */
117#define wildcardp(pattern)(strpbrk ((pattern), "?*[") != ((void*)0)) (strpbrk ((pattern), "?*[") != NULL((void*)0))

119#define new_stat(x, y)(x_type *) new_statement (x_enum, sizeof (x_type), y) \
(x##_type *) new_statement (x##_enum, sizeof (x##_type), y)

122#define outside_section_address(q)((q)->output_offset + (q)->output_section->vma) \
((q)->output_offset + (q)->output_section->vma)

125#define outside_symbol_address(q)((q)->value + ((q->section)->output_offset + (q->
section)->output_section->vma)) \
((q)->value + outside_section_address (q->section)((q->section)->output_offset + (q->section)->output_section
->vma))

128#define SECTION_NAME_MAP_LENGTH(16) (16)

130void *
131stat_alloc (size_t size)
132{
return obstack_alloc (&stat_obstack, size)__extension__ ({ struct obstack *__h = (&stat_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; }); });
134}

136bfd_boolean
137unique_section_p (const asection *sec)
138{
struct unique_sections *unam;
const char *secnam;

if (link_info.relocatable
    && sec->owner != NULL((void*)0)
    && bfd_is_group_section (sec->owner, sec)((*((sec->owner)->xvec->_bfd_is_group_section)) (sec
->owner, sec)))
  return TRUE1;

secnam = sec->name;
for (unam = unique_section_list; unam; unam = unam->next)
  if (wildcardp (unam->name)(strpbrk ((unam->name), "?*[") != ((void*)0))
? fnmatch (unam->name, secnam, 0) == 0
: strcmp (unam->name, secnam) == 0)
    {
return TRUE1;
    }

return FALSE0;
157}

159/* Generic traversal routines for finding matching sections.  */

161/* Try processing a section against a wildcard.  This just calls
 the callback unless the filename exclusion list is present
 and excludes the file.  It's hardly ever present so this
 function is very fast.  */

166static void
167walk_wild_consider_section (lang_wild_statement_type *ptr,
	    lang_input_statement_type *file,
	    asection *s,
	    struct wildcard_list *sec,
	    callback_t callback,
	    void *data)
173{
bfd_boolean skip = FALSE0;
struct name_list *list_tmp;

/* Don't process sections from files which were
   excluded.  */
for (list_tmp = sec->spec.exclude_name_list;
     list_tmp;
     list_tmp = list_tmp->next)
  {
    bfd_boolean is_wildcard = wildcardp (list_tmp->name)(strpbrk ((list_tmp->name), "?*[") != ((void*)0));
    if (is_wildcard)
skip = fnmatch (list_tmp->name, file->filename, 0) == 0;
    else
skip = strcmp (list_tmp->name, file->filename) == 0;

    /* If this file is part of an archive, and the archive is
excluded, exclude this file.  */
    if (! skip && file->the_bfd != NULL((void*)0)
 && file->the_bfd->my_archive != NULL((void*)0)
 && file->the_bfd->my_archive->filename != NULL((void*)0))
{
 if (is_wildcard)
   skip = fnmatch (list_tmp->name,
	    file->the_bfd->my_archive->filename,
	    0) == 0;
 else
   skip = strcmp (list_tmp->name,
	   file->the_bfd->my_archive->filename) == 0;
}

    if (skip)
break;
  }

if (!skip)
  (*callback) (ptr, sec, s, file, data);
210}

212/* Lowest common denominator routine that can handle everything correctly,
 but slowly.  */

215static void
216walk_wild_section_general (lang_wild_statement_type *ptr,
	   lang_input_statement_type *file,
	   callback_t callback,
	   void *data)
220{
asection *s;
struct wildcard_list *sec;

for (s = file->the_bfd->sections; s != NULL((void*)0); s = s->next)
  {
    sec = ptr->section_list;
    if (sec == NULL((void*)0))
(*callback) (ptr, sec, s, file, data);

    while (sec != NULL((void*)0))
{
 bfd_boolean skip = FALSE0;

 if (sec->spec.name != NULL((void*)0))
   {
     const char *sname = bfd_get_section_name (file->the_bfd, s)((s)->name + 0);

     if (wildcardp (sec->spec.name)(strpbrk ((sec->spec.name), "?*[") != ((void*)0)))
skip = fnmatch (sec->spec.name, sname, 0) != 0;
     else
skip = strcmp (sec->spec.name, sname) != 0;
   }

 if (!skip)
   walk_wild_consider_section (ptr, file, s, sec, callback, data);

 sec = sec->next;
}
  }
250}

252/* Routines to find a single section given its name.  If there's more
 than one section with that name, we report that.  */

255typedef struct
256{
asection *found_section;
bfd_boolean multiple_sections_found;
259} section_iterator_callback_data;

261static bfd_boolean
262section_iterator_callback (bfd *bfd ATTRIBUTE_UNUSED__attribute__ ((__unused__)), asection *s, void *data)
263{
section_iterator_callback_data *d = data;

if (d->found_section != NULL((void*)0))
  {
    d->multiple_sections_found = TRUE1;
    return TRUE1;
  }

d->found_section = s;
return FALSE0;
274}

276static asection *
277find_section (lang_input_statement_type *file,
     struct wildcard_list *sec,
     bfd_boolean *multiple_sections_found)
280{
section_iterator_callback_data cb_data = { NULL((void*)0), FALSE0 };

bfd_get_section_by_name_if (file->the_bfd, sec->spec.name, 
	      section_iterator_callback, &cb_data);
*multiple_sections_found = cb_data.multiple_sections_found;
return cb_data.found_section;
287}

289/* Code for handling simple wildcards without going through fnmatch,
 which can be expensive because of charset translations etc.  */

292/* A simple wild is a literal string followed by a single '*',
 where the literal part is at least 4 characters long.  */

295static bfd_boolean
296is_simple_wild (const char *name)
297{
size_t len = strcspn (name, "*?[");
return len >= 4 && name[len] == '*' && name[len + 1] == '\0';
300}

302static bfd_boolean
303match_simple_wild (const char *pattern, const char *name)
304{
/* The first four characters of the pattern are guaranteed valid
   non-wildcard characters.  So we can go faster.  */
if (pattern[0] != name[0] || pattern[1] != name[1]
    || pattern[2] != name[2] || pattern[3] != name[3])
  return FALSE0;

pattern += 4;
name += 4;
while (*pattern != '*')
  if (*name++ != *pattern++)
    return FALSE0;

return TRUE1;
318}

320/* Specialized, optimized routines for handling different kinds of
 wildcards */

323static void
324walk_wild_section_specs1_wild0 (lang_wild_statement_type *ptr,
		lang_input_statement_type *file,
		callback_t callback,
		void *data)
328{
/* We can just do a hash lookup for the section with the right name.
   But if that lookup discovers more than one section with the name
   (should be rare), we fall back to the general algorithm because
   we would otherwise have to sort the sections to make sure they
   get processed in the bfd's order.  */
bfd_boolean multiple_sections_found;
struct wildcard_list *sec0 = ptr->handler_data[0];
asection *s0 = find_section (file, sec0, &multiple_sections_found);

if (multiple_sections_found)
  walk_wild_section_general (ptr, file, callback, data);
else if (s0)
  walk_wild_consider_section (ptr, file, s0, sec0, callback, data);
342}

344static void
345walk_wild_section_specs1_wild1 (lang_wild_statement_type *ptr,
		lang_input_statement_type *file,
		callback_t callback,
		void *data)
349{
asection *s;
struct wildcard_list *wildsec0 = ptr->handler_data[0];

for (s = file->the_bfd->sections; s != NULL((void*)0); s = s->next)
  {
    const char *sname = bfd_get_section_name (file->the_bfd, s)((s)->name + 0);
    bfd_boolean skip = !match_simple_wild (wildsec0->spec.name, sname);

    if (!skip)
walk_wild_consider_section (ptr, file, s, wildsec0, callback, data);
  }
361}

363static void
364walk_wild_section_specs2_wild1 (lang_wild_statement_type *ptr,
		lang_input_statement_type *file,
		callback_t callback,
		void *data)
368{
asection *s;
struct wildcard_list *sec0 = ptr->handler_data[0];
struct wildcard_list *wildsec1 = ptr->handler_data[1];
bfd_boolean multiple_sections_found;
asection *s0 = find_section (file, sec0, &multiple_sections_found);

if (multiple_sections_found)
  {
    walk_wild_section_general (ptr, file, callback, data);
    return;
  }

/* Note that if the section was not found, s0 is NULL and
   we'll simply never succeed the s == s0 test below.  */
for (s = file->the_bfd->sections; s != NULL((void*)0); s = s->next)
  {
    /* Recall that in this code path, a section cannot satisfy more
than one spec, so if s == s0 then it cannot match
wildspec1.  */
    if (s == s0)
walk_wild_consider_section (ptr, file, s, sec0, callback, data);
    else
{
 const char *sname = bfd_get_section_name (file->the_bfd, s)((s)->name + 0);
 bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname);

 if (!skip)
   walk_wild_consider_section (ptr, file, s, wildsec1, callback,
			data);
}
  }
400}

402static void
403walk_wild_section_specs3_wild2 (lang_wild_statement_type *ptr,
		lang_input_statement_type *file,
		callback_t callback,
		void *data)
407{
asection *s;
struct wildcard_list *sec0 = ptr->handler_data[0];
struct wildcard_list *wildsec1 = ptr->handler_data[1];
struct wildcard_list *wildsec2 = ptr->handler_data[2];
bfd_boolean multiple_sections_found;
asection *s0 = find_section (file, sec0, &multiple_sections_found);

if (multiple_sections_found)
  {
    walk_wild_section_general (ptr, file, callback, data);
    return;
  }

for (s = file->the_bfd->sections; s != NULL((void*)0); s = s->next)
  {
    if (s == s0)
walk_wild_consider_section (ptr, file, s, sec0, callback, data);
    else
{
 const char *sname = bfd_get_section_name (file->the_bfd, s)((s)->name + 0);
 bfd_boolean skip = !match_simple_wild (wildsec1->spec.name, sname);

 if (!skip)
   walk_wild_consider_section (ptr, file, s, wildsec1, callback, data);
 else
   {
     skip = !match_simple_wild (wildsec2->spec.name, sname);
     if (!skip)
walk_wild_consider_section (ptr, file, s, wildsec2, callback,
			    data);
   }
}
  }
441}

443static void
444walk_wild_section_specs4_wild2 (lang_wild_statement_type *ptr,
		lang_input_statement_type *file,
		callback_t callback,
		void *data)
448{
asection *s;
struct wildcard_list *sec0 = ptr->handler_data[0];
struct wildcard_list *sec1 = ptr->handler_data[1];
struct wildcard_list *wildsec2 = ptr->handler_data[2];
struct wildcard_list *wildsec3 = ptr->handler_data[3];
bfd_boolean multiple_sections_found;
asection *s0 = find_section (file, sec0, &multiple_sections_found), *s1;

if (multiple_sections_found)
  {
    walk_wild_section_general (ptr, file, callback, data);
    return;
  }

s1 = find_section (file, sec1, &multiple_sections_found);
if (multiple_sections_found)
  {
    walk_wild_section_general (ptr, file, callback, data);
    return;
  }

for (s = file->the_bfd->sections; s != NULL((void*)0); s = s->next)
  {
    if (s == s0)
walk_wild_consider_section (ptr, file, s, sec0, callback, data);
    else
if (s == s1)
 walk_wild_consider_section (ptr, file, s, sec1, callback, data);
else
 {
   const char *sname = bfd_get_section_name (file->the_bfd, s)((s)->name + 0);
   bfd_boolean skip = !match_simple_wild (wildsec2->spec.name,
				   sname);

   if (!skip)
     walk_wild_consider_section (ptr, file, s, wildsec2, callback,
			  data);
   else
     {
skip = !match_simple_wild (wildsec3->spec.name, sname);
if (!skip)
  walk_wild_consider_section (ptr, file, s, wildsec3,
			      callback, data);
     }
 }
  }
495}

497static void
498walk_wild_section (lang_wild_statement_type *ptr,
   lang_input_statement_type *file,
   callback_t callback,
   void *data)
502{
if (file->just_syms_flag)
  return;

(*ptr->walk_wild_section_handler) (ptr, file, callback, data);
507}

509/* Returns TRUE when name1 is a wildcard spec that might match
 something name2 can match.  We're conservative: we return FALSE
 only if the prefixes of name1 and name2 are different up to the
 first wildcard character.  */

514static bfd_boolean
515wild_spec_can_overlap (const char *name1, const char *name2)
516{
size_t prefix1_len = strcspn (name1, "?*[");
size_t prefix2_len = strcspn (name2, "?*[");
size_t min_prefix_len;

/* Note that if there is no wildcard character, then we treat the
   terminating 0 as part of the prefix.  Thus ".text" won't match
   ".text." or ".text.*", for example.  */
if (name1[prefix1_len] == '\0')
  prefix1_len++;
if (name2[prefix2_len] == '\0')
  prefix2_len++;

min_prefix_len = prefix1_len < prefix2_len ? prefix1_len : prefix2_len;

return memcmp (name1, name2, min_prefix_len) == 0;
532}

534/* Select specialized code to handle various kinds of wildcard
 statements.  */

537static void
538analyze_walk_wild_section_handler (lang_wild_statement_type *ptr)
539{
int sec_count = 0;
int wild_name_count = 0;
struct wildcard_list *sec;
int signature;
int data_counter;

ptr->walk_wild_section_handler = walk_wild_section_general;

/* Count how many wildcard_specs there are, and how many of those
   actually use wildcards in the name.  Also, bail out if any of the
   wildcard names are NULL. (Can this actually happen?
   walk_wild_section used to test for it.)  And bail out if any
   of the wildcards are more complex than a simple string
   ending in a single '*'.  */
for (sec = ptr->section_list; sec != NULL((void*)0); sec = sec->next)
  {
    ++sec_count;
    if (sec->spec.name == NULL((void*)0))
return;
    if (wildcardp (sec->spec.name)(strpbrk ((sec->spec.name), "?*[") != ((void*)0)))
{
 ++wild_name_count;
 if (!is_simple_wild (sec->spec.name))
   return;
}
  }

/* The zero-spec case would be easy to optimize but it doesn't
   happen in practice.  Likewise, more than 4 specs doesn't
   happen in practice.  */
if (sec_count == 0 || sec_count > 4)
  return;

/* Check that no two specs can match the same section.  */
for (sec = ptr->section_list; sec != NULL((void*)0); sec = sec->next)
  {
    struct wildcard_list *sec2;
    for (sec2 = sec->next; sec2 != NULL((void*)0); sec2 = sec2->next)
{
 if (wild_spec_can_overlap (sec->spec.name, sec2->spec.name))
   return;
}
  }

signature = (sec_count << 8) + wild_name_count;
switch (signature)
  {
  case 0x0100:
    ptr->walk_wild_section_handler = walk_wild_section_specs1_wild0;
    break;
  case 0x0101:
    ptr->walk_wild_section_handler = walk_wild_section_specs1_wild1;
    break;
  case 0x0201:
    ptr->walk_wild_section_handler = walk_wild_section_specs2_wild1;
    break;
  case 0x0302:
    ptr->walk_wild_section_handler = walk_wild_section_specs3_wild2;
    break;
  case 0x0402:
    ptr->walk_wild_section_handler = walk_wild_section_specs4_wild2;
    break;
  default:
    return;
  }

/* Now fill the data array with pointers to the specs, first the
   specs with non-wildcard names, then the specs with wildcard
   names.  It's OK to process the specs in different order from the
   given order, because we've already determined that no section
   will match more than one spec.  */
data_counter = 0;
for (sec = ptr->section_list; sec != NULL((void*)0); sec = sec->next)
  if (!wildcardp (sec->spec.name)(strpbrk ((sec->spec.name), "?*[") != ((void*)0)))
    ptr->handler_data[data_counter++] = sec;
for (sec = ptr->section_list; sec != NULL((void*)0); sec = sec->next)
  if (wildcardp (sec->spec.name)(strpbrk ((sec->spec.name), "?*[") != ((void*)0)))
    ptr->handler_data[data_counter++] = sec;
618}

620/* Handle a wild statement for a single file F.  */

622static void
623walk_wild_file (lang_wild_statement_type *s,
lang_input_statement_type *f,
callback_t callback,
void *data)
627{
if (f->the_bfd == NULL((void*)0)
    || ! bfd_check_format (f->the_bfd, bfd_archive))
  walk_wild_section (s, f, callback, data);
else
  {
    bfd *member;

    /* This is an archive file.  We must map each member of the
archive separately.  */
    member = bfd_openr_next_archived_file (f->the_bfd, NULL((void*)0));
    while (member != NULL((void*)0))
{
 /* When lookup_name is called, it will call the add_symbols
    entry point for the archive.  For each element of the
    archive which is included, BFD will call ldlang_add_file,
    which will set the usrdata field of the member to the
    lang_input_statement.  */
 if (member->usrdata != NULL((void*)0))
   {
     walk_wild_section (s, member->usrdata, callback, data);
   }

 member = bfd_openr_next_archived_file (f->the_bfd, member);
}
  }
653}

655static void
656walk_wild (lang_wild_statement_type *s, callback_t callback, void *data)
657{
const char *file_spec = s->filename;

if (file_spec == NULL((void*)0))
  {
    /* Perform the iteration over all files in the list.  */
    LANG_FOR_EACH_INPUT_STATEMENT (f)lang_input_statement_type *f; for (f = (lang_input_statement_type
 *) file_chain.head; f != (lang_input_statement_type *) ((void
*)0); f = (lang_input_statement_type *) f->next)
{
 walk_wild_file (s, f, callback, data);
}
  }
else if (wildcardp (file_spec)(strpbrk ((file_spec), "?*[") != ((void*)0)))
  {
    LANG_FOR_EACH_INPUT_STATEMENT (f)lang_input_statement_type *f; for (f = (lang_input_statement_type
 *) file_chain.head; f != (lang_input_statement_type *) ((void
*)0); f = (lang_input_statement_type *) f->next)
{
 if (fnmatch (file_spec, f->filename, FNM_FILE_NAME(1 << 0)) == 0)
   walk_wild_file (s, f, callback, data);
}
  }
else
  {
    lang_input_statement_type *f;

    /* Perform the iteration over a single file.  */
    f = lookup_name (file_spec);
    if (f)
walk_wild_file (s, f, callback, data);
  }
685}

687/* lang_for_each_statement walks the parse tree and calls the provided
 function for each node.  */

690static void
691lang_for_each_statement_worker (void (*func) (lang_statement_union_type *),
		lang_statement_union_type *s)
693{
for (; s != NULL((void*)0); s = s->header.next)
  {
    func (s);

    switch (s->header.type)
{
case lang_constructors_statement_enum:
 lang_for_each_statement_worker (func, constructor_list.head);
 break;
case lang_output_section_statement_enum:
 lang_for_each_statement_worker
   (func, s->output_section_statement.children.head);
 break;
case lang_wild_statement_enum:
 lang_for_each_statement_worker (func,
			  s->wild_statement.children.head);
 break;
case lang_group_statement_enum:
 lang_for_each_statement_worker (func,
			  s->group_statement.children.head);
 break;
case lang_data_statement_enum:
case lang_reloc_statement_enum:
case lang_object_symbols_statement_enum:
case lang_output_statement_enum:
case lang_target_statement_enum:
case lang_input_section_enum:
case lang_input_statement_enum:
case lang_assignment_statement_enum:
case lang_padding_statement_enum:
case lang_address_statement_enum:
case lang_fill_statement_enum:
 break;
default:
 FAIL ()do { info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,728); } while (0);
 break;
}
  }
732}

734void
735lang_for_each_statement (void (*func) (lang_statement_union_type *))
736{
lang_for_each_statement_worker (func, statement_list.head);
738}

740/*----------------------------------------------------------------------*/

742void
743lang_list_init (lang_statement_list_type *list)
744{
list->head = NULL((void*)0);
list->tail = &list->head;
747}

749/* Build a new statement node for the parse tree.  */

751static lang_statement_union_type *
752new_statement (enum statement_enum type,
      size_t size,
      lang_statement_list_type *list)
755{
lang_statement_union_type *new;

new = stat_alloc (size);
new->header.type = type;
new->header.next = NULL((void*)0);
lang_statement_append (list, new, &new->header.next);
return new;
763}

765/* Build a new input file node for the language.  There are several
 ways in which we treat an input file, eg, we only look at symbols,
 or prefix it with a -l etc.

 We can be supplied with requests for input files more than once;
 they may, for example be split over several lines like foo.o(.text)
 foo.o(.data) etc, so when asked for a file we check that we haven't
 got it already so we don't duplicate the bfd.  */

774static lang_input_statement_type *
775new_afile (const char *name,
  lang_input_file_enum_type file_type,
  const char *target,
  bfd_boolean add_to_list)
779{
lang_input_statement_type *p;

if (add_to_list)
  p = new_stat (lang_input_statement, stat_ptr)(lang_input_statement_type *) new_statement (lang_input_statement_enum
, sizeof (lang_input_statement_type), stat_ptr);
else
  {
    p = stat_alloc (sizeof (lang_input_statement_type));
    p->header.type = lang_input_statement_enum;
    p->header.next = NULL((void*)0);
  }

lang_has_input_file = TRUE1;
p->target = target;
p->sysrooted = FALSE0;
switch (file_type)
  {
  case lang_input_file_is_symbols_only_enum:
    p->filename = name;
    p->is_archive = FALSE0;
    p->real = TRUE1;
    p->local_sym_name = name;
    p->just_syms_flag = TRUE1;
    p->search_dirs_flag = FALSE0;
    break;
  case lang_input_file_is_fake_enum:
    p->filename = name;
    p->is_archive = FALSE0;
    p->real = FALSE0;
    p->local_sym_name = name;
    p->just_syms_flag = FALSE0;
    p->search_dirs_flag = FALSE0;
    break;
  case lang_input_file_is_l_enum:
    p->is_archive = TRUE1;
    p->filename = name;
    p->real = TRUE1;
    p->local_sym_name = concat ("-l", name, NULL((void*)0));
    p->just_syms_flag = FALSE0;
    p->search_dirs_flag = TRUE1;
    break;
  case lang_input_file_is_marker_enum:
    p->filename = name;
    p->is_archive = FALSE0;
    p->real = FALSE0;
    p->local_sym_name = name;
    p->just_syms_flag = FALSE0;
    p->search_dirs_flag = TRUE1;
    break;
  case lang_input_file_is_search_file_enum:
    p->sysrooted = ldlang_sysrooted_script;
    p->filename = name;
    p->is_archive = FALSE0;
    p->real = TRUE1;
    p->local_sym_name = name;
    p->just_syms_flag = FALSE0;
    p->search_dirs_flag = TRUE1;
    break;
  case lang_input_file_is_file_enum:
    p->filename = name;
    p->is_archive = FALSE0;
    p->real = TRUE1;
    p->local_sym_name = name;
    p->just_syms_flag = FALSE0;
    p->search_dirs_flag = FALSE0;
    break;
  default:
    FAIL ()do { info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,846); } while (0);
  }
p->the_bfd = NULL((void*)0);
p->asymbols = NULL((void*)0);
p->next_real_file = NULL((void*)0);
p->next = NULL((void*)0);
p->symbol_count = 0;
p->dynamic = config.dynamic_link;
p->add_needed = add_needed;
p->as_needed = as_needed;
p->whole_archive = whole_archive;
p->loaded = FALSE0;
lang_statement_append (&input_file_chain,
	 (lang_statement_union_type *) p,
	 &p->next_real_file);
return p;
862}

864lang_input_statement_type *
865lang_add_input_file (const char *name,
     lang_input_file_enum_type file_type,
     const char *target)
868{
lang_has_input_file = TRUE1;
return new_afile (name, file_type, target, TRUE1);
871}

873struct out_section_hash_entry
874{
struct bfd_hash_entry root;
lang_statement_union_type s;
877};

879/* The hash table.  */

881static struct bfd_hash_table output_section_statement_table;

883/* Support routines for the hash table used by lang_output_section_find,
 initialize the table, fill in an entry and remove the table.  */

886static struct bfd_hash_entry *
887output_section_statement_newfunc (struct bfd_hash_entry *entry, 
		  struct bfd_hash_table *table,
		  const char *string)
890{
lang_output_section_statement_type **nextp;
struct out_section_hash_entry *ret;

if (entry == NULL((void*)0))
  {
    entry = bfd_hash_allocate (table, sizeof (*ret));
    if (entry == NULL((void*)0))
return entry;
  }

entry = bfd_hash_newfunc (entry, table, string);
if (entry == NULL((void*)0))
  return entry;

ret = (struct out_section_hash_entry *) entry;
memset (&ret->s, 0, sizeof (ret->s));
ret->s.header.type = lang_output_section_statement_enum;
ret->s.output_section_statement.subsection_alignment = -1;
ret->s.output_section_statement.section_alignment = -1;
ret->s.output_section_statement.block_value = 1;
lang_list_init (&ret->s.output_section_statement.children);
lang_statement_append (stat_ptr, &ret->s, &ret->s.header.next);

/* For every output section statement added to the list, except the
   first one, lang_output_section_statement.tail points to the "next"
   field of the last element of the list.  */
if (lang_output_section_statement.head != NULL((void*)0))
  ret->s.output_section_statement.prev
    = ((lang_output_section_statement_type *)
((char *) lang_output_section_statement.tail
 - offsetof (lang_output_section_statement_type, next)__builtin_offsetof(lang_output_section_statement_type, next)));

/* GCC's strict aliasing rules prevent us from just casting the
   address, so we store the pointer in a variable and cast that
   instead.  */
nextp = &ret->s.output_section_statement.next;
lang_statement_append (&lang_output_section_statement,
	 &ret->s,
	 (lang_statement_union_type **) nextp);
return &ret->root;
931}

933static void
934output_section_statement_table_init (void)
935{
if (!bfd_hash_table_init_n (&output_section_statement_table,
	      output_section_statement_newfunc,
	      sizeof (struct out_section_hash_entry),
	      61))
  einfo (_("%P%F: can not create hash table: %E\n")("%P%F: can not create hash table: %E\n"));
941}

943static void
944output_section_statement_table_free (void)
945{
bfd_hash_table_free (&output_section_statement_table);
947}

949/* Build enough state so that the parser can build its tree.  */

951void
952lang_init (void)
953{
obstack_begin (&stat_obstack, 1000)_obstack_begin ((&stat_obstack), (1000), 0, (void *(*) (long
)) xmalloc, (void (*) (void *)) free);

stat_ptr = &statement_list;

output_section_statement_table_init ();

lang_list_init (stat_ptr);

lang_list_init (&input_file_chain);
lang_list_init (&lang_output_section_statement);
lang_list_init (&file_chain);
first_file = lang_add_input_file (NULL((void*)0), lang_input_file_is_marker_enum,
		    NULL((void*)0));
abs_output_section =
  lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME"*ABS*");

abs_output_section->bfd_section = bfd_abs_section_ptr((asection *) &bfd_abs_section);

/* The value "3" is ad-hoc, somewhat related to the expected number of
   DEFINED expressions in a linker script.  For most default linker
   scripts, there are none.  Why a hash table then?  Well, it's somewhat
   simpler to re-use working machinery than using a linked list in terms
   of code-complexity here in ld, besides the initialization which just
   looks like other code here.  */
if (!bfd_hash_table_init_n (&lang_definedness_table,
	      lang_definedness_newfunc,
	      sizeof (struct lang_definedness_hash_entry),
	      3))
  einfo (_("%P%F: can not create hash table: %E\n")("%P%F: can not create hash table: %E\n"));
983}

985void
986lang_finish (void)
987{
output_section_statement_table_free ();
989}

991/*----------------------------------------------------------------------
A region is an area of memory declared with the
MEMORY {  name:org=exp, len=exp ... }
syntax.

We maintain a list of all the regions here.

If no regions are specified in the script, then the default is used
which is created when looked up to be the entire data space.

If create is true we are creating a region inside a MEMORY block.
In this case it is probably an error to create a region that has
already been created.  If we are not inside a MEMORY block it is
dubious to use an undeclared region name (except DEFAULT_MEMORY_REGION)
and so we issue a warning.  */

1007static lang_memory_region_type *lang_memory_region_list;
1008static lang_memory_region_type **lang_memory_region_list_tail
= &lang_memory_region_list;

1011lang_memory_region_type *
1012lang_memory_region_lookup (const char *const name, bfd_boolean create)
1013{
lang_memory_region_type *p;
lang_memory_region_type *new;

/* NAME is NULL for LMA memspecs if no region was specified.  */
if (name == NULL((void*)0))
  return NULL((void*)0);

for (p = lang_memory_region_list; p != NULL((void*)0); p = p->next)
  if (strcmp (p->name, name) == 0)
    {
if (create)
 einfo (_("%P:%S: warning: redeclaration of memory region '%s'\n")("%P:%S: warning: redeclaration of memory region '%s'\n"),
 name);
return p;
    }

if (!create && strcmp (name, DEFAULT_MEMORY_REGION"*default*"))
  einfo (_("%P:%S: warning: memory region %s not declared\n")("%P:%S: warning: memory region %s not declared\n"), name);

new = stat_alloc (sizeof (lang_memory_region_type));

new->name = xstrdup (name);
new->next = NULL((void*)0);

*lang_memory_region_list_tail = new;
lang_memory_region_list_tail = &new->next;
new->origin = 0;
new->flags = 0;
new->not_flags = 0;
new->length = ~(bfd_size_type) 0;
new->current = 0;
new->had_full_message = FALSE0;

return new;
1048}

1050static lang_memory_region_type *
1051lang_memory_default (asection *section)
1052{
lang_memory_region_type *p;

flagword sec_flags = section->flags;

/* Override SEC_DATA to mean a writable section.  */
if ((sec_flags & (SEC_ALLOC0x001 | SEC_READONLY0x008 | SEC_CODE0x010)) == SEC_ALLOC0x001)
  sec_flags |= SEC_DATA0x020;

for (p = lang_memory_region_list; p != NULL((void*)0); p = p->next)
  {
    if ((p->flags & sec_flags) != 0
 && (p->not_flags & sec_flags) == 0)
{
 return p;
}
  }
return lang_memory_region_lookup (DEFAULT_MEMORY_REGION"*default*", FALSE0);
1070}

1072lang_output_section_statement_type *
1073lang_output_section_find (const char *const name)
1074{
struct out_section_hash_entry *entry;
unsigned long hash;

entry = ((struct out_section_hash_entry *)
  bfd_hash_lookup (&output_section_statement_table, name,
	    FALSE0, FALSE0));
if (entry == NULL((void*)0))
  return NULL((void*)0);

hash = entry->root.hash;
do
  {
    if (entry->s.output_section_statement.constraint != -1)
return &entry->s.output_section_statement;
    entry = (struct out_section_hash_entry *) entry->root.next;
  }
while (entry != NULL((void*)0)
&& entry->root.hash == hash
&& strcmp (name, entry->s.output_section_statement.name) == 0);

return NULL((void*)0);
1096}

1098static lang_output_section_statement_type *
1099lang_output_section_statement_lookup_1 (const char *const name, int constraint)
1100{
struct out_section_hash_entry *entry;
struct out_section_hash_entry *last_ent;
unsigned long hash;

entry = ((struct out_section_hash_entry *)
  bfd_hash_lookup (&output_section_statement_table, name,
	    TRUE1, FALSE0));
if (entry == NULL((void*)0))
  {
    einfo (_("%P%F: failed creating section `%s': %E\n")("%P%F: failed creating section `%s': %E\n"), name);
    return NULL((void*)0);
  }

if (entry->s.output_section_statement.name != NULL((void*)0))
  {
    /* We have a section of this name, but it might not have the correct
constraint.  */
    hash = entry->root.hash;
    do
{
 if (entry->s.output_section_statement.constraint != -1
     && (constraint == 0
  || (constraint == entry->s.output_section_statement.constraint
      && constraint != SPECIAL369)))
   return &entry->s.output_section_statement;
 last_ent = entry;
 entry = (struct out_section_hash_entry *) entry->root.next;
}
    while (entry != NULL((void*)0)
    && entry->root.hash == hash
    && strcmp (name, entry->s.output_section_statement.name) == 0);

    entry
= ((struct out_section_hash_entry *)
  output_section_statement_newfunc (NULL((void*)0),
			     &output_section_statement_table,
			     name));
    if (entry == NULL((void*)0))
{
 einfo (_("%P%F: failed creating section `%s': %E\n")("%P%F: failed creating section `%s': %E\n"), name);
 return NULL((void*)0);
}
    entry->root = last_ent->root;
    last_ent->root.next = &entry->root;
  }

entry->s.output_section_statement.name = name;
entry->s.output_section_statement.constraint = constraint;
return &entry->s.output_section_statement;
1150}

1152lang_output_section_statement_type *
1153lang_output_section_statement_lookup (const char *const name)
1154{
return lang_output_section_statement_lookup_1 (name, 0);
1156}

1158/* A variant of lang_output_section_find used by place_orphan.
 Returns the output statement that should precede a new output
 statement for SEC.  If an exact match is found on certain flags,
 sets *EXACT too.  */

1163lang_output_section_statement_type *
1164lang_output_section_find_by_flags (const asection *sec,
		   lang_output_section_statement_type **exact,
		   lang_match_sec_type_func match_type)
1167{
lang_output_section_statement_type *first, *look, *found;
flagword flags;

/* We know the first statement on this list is *ABS*.  May as well
   skip it.  */
first = &lang_output_section_statement.head->output_section_statement;
first = first->next;

/* First try for an exact match.  */
found = NULL((void*)0);
for (look = first; look; look = look->next)
  {
    flags = look->flags;
    if (look->bfd_section != NULL((void*)0))
{
 flags = look->bfd_section->flags;
 if (match_type && !match_type (output_bfd, look->bfd_section,
			 sec->owner, sec))
   continue;
}
    flags ^= sec->flags;
    if (!(flags & (SEC_HAS_CONTENTS0x100 | SEC_ALLOC0x001 | SEC_LOAD0x002 | SEC_READONLY0x008
     | SEC_CODE0x010 | SEC_SMALL_DATA0x800000 | SEC_THREAD_LOCAL0x400)))
found = look;
  }
if (found != NULL((void*)0))
  {
    if (exact != NULL((void*)0))
*exact = found;
    return found;
  }

if (sec->flags & SEC_CODE0x010)
  {
    /* Try for a rw code section.  */
    for (look = first; look; look = look->next)
{
 flags = look->flags;
 if (look->bfd_section != NULL((void*)0))
   {
     flags = look->bfd_section->flags;
     if (match_type && !match_type (output_bfd, look->bfd_section,
			     sec->owner, sec))
continue;
   }
 flags ^= sec->flags;
 if (!(flags & (SEC_HAS_CONTENTS0x100 | SEC_ALLOC0x001 | SEC_LOAD0x002
	 | SEC_CODE0x010 | SEC_SMALL_DATA0x800000 | SEC_THREAD_LOCAL0x400)))
   found = look;
}
  }
else if (sec->flags & (SEC_READONLY0x008 | SEC_THREAD_LOCAL0x400))
  {
    /* .rodata can go after .text, .sdata2 after .rodata.  */
    for (look = first; look; look = look->next)
{
 flags = look->flags;
 if (look->bfd_section != NULL((void*)0))
   {
     flags = look->bfd_section->flags;
     if (match_type && !match_type (output_bfd, look->bfd_section,
			     sec->owner, sec))
continue;
   }
 flags ^= sec->flags;
 if (!(flags & (SEC_HAS_CONTENTS0x100 | SEC_ALLOC0x001 | SEC_LOAD0x002
	 | SEC_READONLY0x008))
     && !(look->flags & (SEC_SMALL_DATA0x800000 | SEC_THREAD_LOCAL0x400)))
   found = look;
}
  }
else if (sec->flags & SEC_SMALL_DATA0x800000)
  {
    /* .sdata goes after .data, .sbss after .sdata.  */
    for (look = first; look; look = look->next)
{
 flags = look->flags;
 if (look->bfd_section != NULL((void*)0))
   {
     flags = look->bfd_section->flags;
     if (match_type && !match_type (output_bfd, look->bfd_section,
			     sec->owner, sec))
continue;
   }
 flags ^= sec->flags;
 if (!(flags & (SEC_HAS_CONTENTS0x100 | SEC_ALLOC0x001 | SEC_LOAD0x002
	 | SEC_THREAD_LOCAL0x400))
     || ((look->flags & SEC_SMALL_DATA0x800000)
  && !(sec->flags & SEC_HAS_CONTENTS0x100)))
   found = look;
}
  }
else if (sec->flags & SEC_HAS_CONTENTS0x100)
  {
    /* .data goes after .rodata.  */
    for (look = first; look; look = look->next)
{
 flags = look->flags;
 if (look->bfd_section != NULL((void*)0))
   {
     flags = look->bfd_section->flags;
     if (match_type && !match_type (output_bfd, look->bfd_section,
			     sec->owner, sec))
continue;
   }
 flags ^= sec->flags;
 if (!(flags & (SEC_HAS_CONTENTS0x100 | SEC_ALLOC0x001 | SEC_LOAD0x002
	 | SEC_SMALL_DATA0x800000 | SEC_THREAD_LOCAL0x400)))
   found = look;
}
  }
else
  {
    /* .bss goes last.  */
    for (look = first; look; look = look->next)
{
 flags = look->flags;
 if (look->bfd_section != NULL((void*)0))
   {
     flags = look->bfd_section->flags;
     if (match_type && !match_type (output_bfd, look->bfd_section,
			     sec->owner, sec))
continue;
   }
 flags ^= sec->flags;
 if (!(flags & SEC_ALLOC0x001))
   found = look;
}
  }

if (found || !match_type)
  return found;

return lang_output_section_find_by_flags (sec, NULL((void*)0), NULL((void*)0));
1302}

1304/* Find the last output section before given output statement.
 Used by place_orphan.  */

1307static asection *
1308output_prev_sec_find (lang_output_section_statement_type *os)
1309{
lang_output_section_statement_type *lookup;

for (lookup = os->prev; lookup != NULL((void*)0); lookup = lookup->prev)
  {
    if (lookup->constraint == -1)
continue;

    if (lookup->bfd_section != NULL((void*)0) && lookup->bfd_section->owner != NULL((void*)0))
return lookup->bfd_section;
  }

return NULL((void*)0);
1322}

1324lang_output_section_statement_type *
1325lang_insert_orphan (asection *s,
    const char *secname,
    lang_output_section_statement_type *after,
    struct orphan_save *place,
    etree_type *address,
    lang_statement_list_type *add_child)
1331{
lang_statement_list_type *old;
lang_statement_list_type add;
const char *ps;
etree_type *load_base;
lang_output_section_statement_type *os;
lang_output_section_statement_type **os_tail;

/* Start building a list of statements for this section.
   First save the current statement pointer.  */
old = stat_ptr;

/* If we have found an appropriate place for the output section
   statements for this orphan, add them to our own private list,
   inserting them later into the global statement list.  */
if (after != NULL((void*)0))
1
Assuming 'after' is equal to NULL→
2
←
Taking false branch→
  {
    stat_ptr = &add;
    lang_list_init (stat_ptr);
  }

ps = NULL((void*)0);
3
←
Null pointer value stored to 'ps'→
if (config.build_constructors)
4
←
Assuming field 'build_constructors' is 0→
5
←
Taking false branch→
  {
    /* If the name of the section is representable in C, then create
symbols to mark the start and the end of the section.  */
    for (ps = secname; *ps != '\0'; ps++)
if (! ISALNUM ((unsigned char) *ps)(_sch_istable[((unsigned char) *ps) & 0xff] & (unsigned
 short)(_sch_isalnum)) && *ps != '_')
 break;
    if (*ps == '\0')
{
 char *symname;
 etree_type *e_align;

 symname = (char *) xmalloc (ps - secname + sizeof "__start_" + 1);
 symname[0] = bfd_get_symbol_leading_char (output_bfd)((output_bfd)->xvec->symbol_leading_char);
 sprintf (symname + (symname[0] != 0), "__start_%s", secname);
 e_align = exp_unop (ALIGN_K278,
	      exp_intop ((bfd_vma) 1 << s->alignment_power));
 lang_add_assignment (exp_assop ('=', ".", e_align));
 lang_add_assignment (exp_assop ('=', symname,
			  exp_nameop (NAME258, ".")));
}
  }

if (link_info.relocatable || (s->flags & (SEC_LOAD0x002 | SEC_ALLOC0x001)) == 0)
6
←
Assuming field 'relocatable' is 0→
7
←
Assuming the condition is false→
8
←
Taking false branch→
  address = exp_intop (0);

load_base = NULL((void*)0);
if (after8.1
'after' is equal to NULL
 != NULL((void*)0) && after->load_base != NULL((void*)0))
  {
    etree_type *lma_from_vma;
    lma_from_vma = exp_binop ('-', after->load_base,
		exp_nameop (ADDR314, after->name));
    load_base = exp_binop ('+', lma_from_vma,
	     exp_nameop (ADDR314, secname));
  }

os_tail = ((lang_output_section_statement_type **)
    lang_output_section_statement.tail);
os = lang_enter_output_section_statement (secname, address, 0, NULL((void*)0), NULL((void*)0),
			    load_base, 0);

if (add_child == NULL((void*)0))
9
←
Assuming 'add_child' is not equal to NULL→
10
←
Taking false branch→
  add_child = &os->children;
lang_add_section (add_child, s, os);

lang_leave_output_section_statement (0, "*default*", NULL((void*)0), NULL((void*)0));
11
←
Calling 'lang_leave_output_section_statement'→
17
←
Returning from 'lang_leave_output_section_statement'→

if (config.build_constructors && *ps == '\0')
18
←
Assuming field 'build_constructors' is not equal to 0→
19
←
Dereference of null pointer (loaded from variable 'ps')
  {
    char *symname;

    /* lang_leave_ouput_section_statement resets stat_ptr.
Put stat_ptr back where we want it.  */
    if (after != NULL((void*)0))
stat_ptr = &add;

    symname = (char *) xmalloc (ps - secname + sizeof "__stop_" + 1);
    symname[0] = bfd_get_symbol_leading_char (output_bfd)((output_bfd)->xvec->symbol_leading_char);
    sprintf (symname + (symname[0] != 0), "__stop_%s", secname);
    lang_add_assignment (exp_assop ('=', symname,
		      exp_nameop (NAME258, ".")));
  }

/* Restore the global list pointer.  */
if (after != NULL((void*)0))
  stat_ptr = old;

if (after != NULL((void*)0) && os->bfd_section != NULL((void*)0))
  {
    asection *snew, *as;

    snew = os->bfd_section;

    /* Shuffle the bfd section list to make the output file look
neater.  This is really only cosmetic.  */
    if (place->section == NULL((void*)0)
 && after != (&lang_output_section_statement.head
       ->output_section_statement))
{
 asection *bfd_section = after->bfd_section;

 /* If the output statement hasn't been used to place any input
    sections (and thus doesn't have an output bfd_section),
    look for the closest prior output statement having an
    output section.  */
 if (bfd_section == NULL((void*)0))
   bfd_section = output_prev_sec_find (after);

 if (bfd_section != NULL((void*)0) && bfd_section != snew)
   place->section = &bfd_section->next;
}

    if (place->section == NULL((void*)0))
place->section = &output_bfd->sections;

    as = *place->section;
    if (as != snew && as->prev != snew)
{
 /* Unlink the section.  */
 bfd_section_list_remove (output_bfd, snew)do { asection *_s = snew; asection *_next = _s->next; asection
 *_prev = _s->prev; if (_prev) _prev->next = _next; else
 (output_bfd)->sections = _next; if (_next) _next->prev
 = _prev; else (output_bfd)->section_last = _prev; } while
 (0);

 /* Now tack it back on in the right place.  */
 bfd_section_list_insert_before (output_bfd, as, snew)do { asection *_b = as; asection *_s = snew; asection *_prev =
 _b->prev; _s->prev = _prev; _s->next = _b; _b->prev
 = _s; if (_prev) _prev->next = _s; else (output_bfd)->
sections = _s; } while (0);
}

    /* Save the end of this list.  Further ophans of this type will
follow the one we've just added.  */
    place->section = &snew->next;

    /* The following is non-cosmetic.  We try to put the output
statements in some sort of reasonable order here, because they
determine the final load addresses of the orphan sections.
In addition, placing output statements in the wrong order may
require extra segments.  For instance, given a typical
situation of all read-only sections placed in one segment and
following that a segment containing all the read-write
sections, we wouldn't want to place an orphan read/write
section before or amongst the read-only ones.  */
    if (add.head != NULL((void*)0))
{
 lang_output_section_statement_type *newly_added_os;

 if (place->stmt == NULL((void*)0))
   {
     lang_statement_union_type **where;
     lang_statement_union_type **assign = NULL((void*)0);
     bfd_boolean ignore_first;

     /* Look for a suitable place for the new statement list.
 The idea is to skip over anything that might be inside
 a SECTIONS {} statement in a script, before we find
 another output_section_statement.  Assignments to "dot"
 before an output section statement are assumed to
 belong to it.  An exception to this rule is made for
 the first assignment to dot, otherwise we might put an
 orphan before . = . + SIZEOF_HEADERS or similar
 assignments that set the initial address.  */

     ignore_first = after == (&lang_output_section_statement.head
		       ->output_section_statement);
     for (where = &after->header.next;
   *where != NULL((void*)0);
   where = &(*where)->header.next)
{
  switch ((*where)->header.type)
    {
    case lang_assignment_statement_enum:
      if (assign == NULL((void*)0))
	{
	  lang_assignment_statement_type *ass;
	  ass = &(*where)->assignment_statement;
	  if (ass->exp->type.node_class != etree_assert
	      && ass->exp->assign.dst[0] == '.'
	      && ass->exp->assign.dst[1] == 0
	      && !ignore_first)
	    assign = where;
	}
      ignore_first = FALSE0;
      continue;
    case lang_wild_statement_enum:
    case lang_input_section_enum:
    case lang_object_symbols_statement_enum:
    case lang_fill_statement_enum:
    case lang_data_statement_enum:
    case lang_reloc_statement_enum:
    case lang_padding_statement_enum:
    case lang_constructors_statement_enum:
      assign = NULL((void*)0);
      continue;
    case lang_output_section_statement_enum:
      if (assign != NULL((void*)0))
	where = assign;
    case lang_input_statement_enum:
    case lang_address_statement_enum:
    case lang_target_statement_enum:
    case lang_output_statement_enum:
    case lang_group_statement_enum:
    case lang_afile_asection_pair_statement_enum:
      break;
    }
  break;
}

     *add.tail = *where;
     *where = add.head;

     place->os_tail = &after->next;
   }
 else
   {
     /* Put it after the last orphan statement we added.  */
     *add.tail = *place->stmt;
     *place->stmt = add.head;
   }

 /* Fix the global list pointer if we happened to tack our
    new list at the tail.  */
 if (*old->tail == add.head)
   old->tail = add.tail;

 /* Save the end of this list.  */
 place->stmt = add.tail;

 /* Do the same for the list of output section statements.  */
 newly_added_os = *os_tail;
 *os_tail = NULL((void*)0);
 newly_added_os->prev = (lang_output_section_statement_type *)
   ((char *) place->os_tail
    - offsetof (lang_output_section_statement_type, next)__builtin_offsetof(lang_output_section_statement_type, next));
 newly_added_os->next = *place->os_tail;
 if (newly_added_os->next != NULL((void*)0))
   newly_added_os->next->prev = newly_added_os;
 *place->os_tail = newly_added_os;
 place->os_tail = &newly_added_os->next;

 /* Fixing the global list pointer here is a little different.
    We added to the list in lang_enter_output_section_statement,
    trimmed off the new output_section_statment above when
    assigning *os_tail = NULL, but possibly added it back in
    the same place when assigning *place->os_tail.  */
 if (*os_tail == NULL((void*)0))
   lang_output_section_statement.tail
     = (lang_statement_union_type **) os_tail;
}
  }
return os;
1579}

1581static void
1582lang_map_flags (flagword flag)
1583{
if (flag & SEC_ALLOC0x001)
  minfo ("a");

if (flag & SEC_CODE0x010)
  minfo ("x");

if (flag & SEC_READONLY0x008)
  minfo ("r");

if (flag & SEC_DATA0x020)
  minfo ("w");

if (flag & SEC_LOAD0x002)
  minfo ("l");
1598}

1600void
1601lang_map (void)
1602{
lang_memory_region_type *m;
bfd_boolean dis_header_printed = FALSE0;
bfd *p;

LANG_FOR_EACH_INPUT_STATEMENT (file)lang_input_statement_type *file; for (file = (lang_input_statement_type
 *) file_chain.head; file != (lang_input_statement_type *) ((
void*)0); file = (lang_input_statement_type *) file->next)
  {
    asection *s;

    if ((file->the_bfd->flags & (BFD_LINKER_CREATED0x2000 | DYNAMIC0x40)) != 0
 || file->just_syms_flag)
continue;

    for (s = file->the_bfd->sections; s != NULL((void*)0); s = s->next)
if (s->output_section == NULL((void*)0)
   || s->output_section->owner != output_bfd)
 {
   if (! dis_header_printed)
     {
fprintf (config.map_file, _("\nDiscarded input sections\n\n")("\nDiscarded input sections\n\n"));
dis_header_printed = TRUE1;
     }

   print_input_section (s);
 }
  }

minfo (_("\nMemory Configuration\n\n")("\nMemory Configuration\n\n"));
fprintf (config.map_file, "%-16s %-18s %-18s %s\n",
  _("Name")("Name"), _("Origin")("Origin"), _("Length")("Length"), _("Attributes")("Attributes"));

for (m = lang_memory_region_list; m != NULL((void*)0); m = m->next)
  {
    char buf[100];
    int len;

    fprintf (config.map_file, "%-16s ", m->name);

    sprintf_vma (buf, m->origin)sprintf (buf, "%016lx", m->origin);
    minfo ("0x%s ", buf);
    len = strlen (buf);
    while (len < 16)
{
 print_space ();
 ++len;
}

    minfo ("0x%V", m->length);
    if (m->flags || m->not_flags)
{
1652#ifndef BFD64
 minfo ("        ");
1654#endif
 if (m->flags)
   {
     print_space ();
     lang_map_flags (m->flags);
   }

 if (m->not_flags)
   {
     minfo (" !");
     lang_map_flags (m->not_flags);
   }
}

    print_nl ();
  }

fprintf (config.map_file, _("\nLinker script and memory map\n\n")("\nLinker script and memory map\n\n"));

if (! link_info.reduce_memory_overheads)
  {
    obstack_begin (&map_obstack, 1000)_obstack_begin ((&map_obstack), (1000), 0, (void *(*) (long
)) xmalloc, (void (*) (void *)) free);
    for (p = link_info.input_bfds; p != (bfd *) NULL((void*)0); p = p->link_next)
bfd_map_over_sections (p, init_map_userdata, 0);
    bfd_link_hash_traverse (link_info.hash, sort_def_symbol, 0);
  }
print_statements ();
1681}

1683static void
1684init_map_userdata (abfd, sec, data)
   bfd *abfd ATTRIBUTE_UNUSED__attribute__ ((__unused__));
   asection *sec;
   void *data ATTRIBUTE_UNUSED__attribute__ ((__unused__));
1688{
fat_section_userdata_type *new_data
  = ((fat_section_userdata_type *) (stat_alloc
		      (sizeof (fat_section_userdata_type))));

ASSERT (get_userdata (sec) == NULL)do { if (!(((sec)->userdata) == ((void*)0))) info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,1693); } while (0);
get_userdata (sec)((sec)->userdata) = new_data;
new_data->map_symbol_def_tail = &new_data->map_symbol_def_head;
1696}

1698static bfd_boolean
1699sort_def_symbol (hash_entry, info)
   struct bfd_link_hash_entry *hash_entry;
   void *info ATTRIBUTE_UNUSED__attribute__ ((__unused__));
1702{
if (hash_entry->type == bfd_link_hash_defined
    || hash_entry->type == bfd_link_hash_defweak)
  {
    struct fat_user_section_struct *ud;
    struct map_symbol_def *def;

    ud = get_userdata (hash_entry->u.def.section)((hash_entry->u.def.section)->userdata);
    if  (! ud)
{
 /* ??? What do we have to do to initialize this beforehand?  */
 /* The first time we get here is bfd_abs_section...  */
 init_map_userdata (0, hash_entry->u.def.section, 0);
 ud = get_userdata (hash_entry->u.def.section)((hash_entry->u.def.section)->userdata);
}
    else if  (!ud->map_symbol_def_tail)
ud->map_symbol_def_tail = &ud->map_symbol_def_head;

    def = obstack_alloc (&map_obstack, sizeof *def)__extension__ ({ struct obstack *__h = (&map_obstack); __extension__
 ({ struct obstack *__o = (__h); int __len = ((sizeof *def));
 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; }); });
    def->entry = hash_entry;
    *(ud->map_symbol_def_tail) = def;
    ud->map_symbol_def_tail = &def->next;
  }
return TRUE1;
1726}

1728/* Initialize an output section.  */

1730static void
1731init_os (lang_output_section_statement_type *s, asection *isec)
1732{
if (s->bfd_section != NULL((void*)0))
  return;

if (strcmp (s->name, DISCARD_SECTION_NAME"/DISCARD/") == 0)
  einfo (_("%P%F: Illegal use of `%s' section\n")("%P%F: Illegal use of `%s' section\n"), DISCARD_SECTION_NAME"/DISCARD/");

s->bfd_section = bfd_get_section_by_name (output_bfd, s->name);
if (s->bfd_section == NULL((void*)0))
  s->bfd_section = bfd_make_section (output_bfd, s->name);
if (s->bfd_section == NULL((void*)0))
  {
    einfo (_("%P%F: output format %s cannot represent section called %s\n")("%P%F: output format %s cannot represent section called %s\n"
),
    output_bfd->xvec->name, s->name);
  }
s->bfd_section->output_section = s->bfd_section;
s->bfd_section->output_offset = 0;
if (!link_info.reduce_memory_overheads)
  {
    fat_section_userdata_type *new
= stat_alloc (sizeof (fat_section_userdata_type));
    memset (new, 0, sizeof (fat_section_userdata_type));
    get_userdata (s->bfd_section)((s->bfd_section)->userdata) = new;
  }


/* If there is a base address, make sure that any sections it might
   mention are initialized.  */
if (s->addr_tree != NULL((void*)0))
  exp_init_os (s->addr_tree);

if (s->load_base != NULL((void*)0))
  exp_init_os (s->load_base);

/* If supplied an alignment, set it.  */
if (s->section_alignment != -1)
  s->bfd_section->alignment_power = s->section_alignment;

if (isec)
  bfd_init_private_section_data (isec->owner, isec,((*((output_bfd)->xvec->_bfd_init_private_section_data)
) (isec->owner, isec, output_bfd, s->bfd_section, &
link_info))
		   output_bfd, s->bfd_section,((*((output_bfd)->xvec->_bfd_init_private_section_data)
) (isec->owner, isec, output_bfd, s->bfd_section, &
link_info))
		   &link_info)((*((output_bfd)->xvec->_bfd_init_private_section_data)
) (isec->owner, isec, output_bfd, s->bfd_section, &
link_info));
1774}

1776/* Make sure that all output sections mentioned in an expression are
 initialized.  */

1779static void
1780exp_init_os (etree_type *exp)
1781{
switch (exp->type.node_class)
  {
  case etree_assign:
  case etree_provide:
    exp_init_os (exp->assign.src);
    break;

  case etree_binary:
    exp_init_os (exp->binary.lhs);
    exp_init_os (exp->binary.rhs);
    break;

  case etree_trinary:
    exp_init_os (exp->trinary.cond);
    exp_init_os (exp->trinary.lhs);
    exp_init_os (exp->trinary.rhs);
    break;

  case etree_assert:
    exp_init_os (exp->assert_s.child);
    break;

  case etree_unary:
    exp_init_os (exp->unary.child);
    break;

  case etree_name:
    switch (exp->type.node_code)
{
case ADDR314:
case LOADADDR315:
case SIZEOF313:
 {
   lang_output_section_statement_type *os;

   os = lang_output_section_find (exp->name.name);
   if (os != NULL((void*)0) && os->bfd_section == NULL((void*)0))
     init_os (os, NULL((void*)0));
 }
}
    break;

  default:
    break;
  }
1827}
1828
1829static void
1830section_already_linked (bfd *abfd, asection *sec, void *data)
1831{
lang_input_statement_type *entry = data;

/* If we are only reading symbols from this object, then we want to
   discard all sections.  */
if (entry->just_syms_flag)
  {
    bfd_link_just_syms (abfd, sec, &link_info)((*((abfd)->xvec->_bfd_link_just_syms)) (sec, &link_info
));
    return;
  }

if (!(abfd->flags & DYNAMIC0x40))
  bfd_section_already_linked (abfd, sec, &link_info)((*((abfd)->xvec->_section_already_linked)) (abfd, sec,
 &link_info));
1844}
1845
1846/* The wild routines.

 These expand statements like *(.text) and foo.o to a list of
 explicit actions, like foo.o(.text), bar.o(.text) and
 foo.o(.text, .data).  */

1852/* Add SECTION to the output section OUTPUT.  Do this by creating a
 lang_input_section statement which is placed at PTR.  FILE is the
 input file which holds SECTION.  */

1856void
1857lang_add_section (lang_statement_list_type *ptr,
  asection *section,
  lang_output_section_statement_type *output)
1860{
flagword flags = section->flags;
bfd_boolean discard;

/* Discard sections marked with SEC_EXCLUDE.  */
discard = (flags & SEC_EXCLUDE0x8000) != 0;

/* Discard input sections which are assigned to a section named
   DISCARD_SECTION_NAME.  */
if (strcmp (output->name, DISCARD_SECTION_NAME"/DISCARD/") == 0)
  discard = TRUE1;

/* Discard debugging sections if we are stripping debugging
   information.  */
if ((link_info.strip == strip_debugger || link_info.strip == strip_all)
    && (flags & SEC_DEBUGGING0x2000) != 0)
  discard = TRUE1;

if (discard)
  {
    if (section->output_section == NULL((void*)0))
{
 /* This prevents future calls from assigning this section.  */
 section->output_section = bfd_abs_section_ptr((asection *) &bfd_abs_section);
}
    return;
  }

if (section->output_section == NULL((void*)0))
  {
    bfd_boolean first;
    lang_input_section_type *new;
    flagword flags;

    if (output->bfd_section == NULL((void*)0))
init_os (output, section);

    first = ! output->bfd_section->linker_has_input;
    output->bfd_section->linker_has_input = 1;

    if (!link_info.relocatable
 && !stripped_excluded_sections)
{
 asection *s = output->bfd_section->map_tail.s;
 output->bfd_section->map_tail.s = section;
 section->map_head.s = NULL((void*)0);
 section->map_tail.s = s;
 if (s != NULL((void*)0))
   s->map_head.s = section;
 else
   output->bfd_section->map_head.s = section;
}

    /* Add a section reference to the list.  */
    new = new_stat (lang_input_section, ptr)(lang_input_section_type *) new_statement (lang_input_section_enum
, sizeof (lang_input_section_type), ptr);

    new->section = section;
    section->output_section = output->bfd_section;

    flags = section->flags;

    /* We don't copy the SEC_NEVER_LOAD flag from an input section
to an output section, because we want to be able to include a
SEC_NEVER_LOAD section in the middle of an otherwise loaded
section (I don't know why we want to do this, but we do).
build_link_order in ldwrite.c handles this case by turning
the embedded SEC_NEVER_LOAD section into a fill.  */

    flags &= ~ SEC_NEVER_LOAD0x200;

    /* If final link, don't copy the SEC_LINK_ONCE flags, they've
already been processed.  One reason to do this is that on pe
format targets, .text$foo sections go into .text and it's odd
to see .text with SEC_LINK_ONCE set.  */

    if (! link_info.relocatable)
flags &= ~ (SEC_LINK_ONCE0x20000 | SEC_LINK_DUPLICATES0x40000);

    /* If this is not the first input section, and the SEC_READONLY
flag is not currently set, then don't set it just because the
input section has it set.  */

    if (! first && (output->bfd_section->flags & SEC_READONLY0x008) == 0)
flags &= ~ SEC_READONLY0x008;

    /* Keep SEC_MERGE and SEC_STRINGS only if they are the same.  */
    if (! first
 && ((output->bfd_section->flags & (SEC_MERGE0x1000000 | SEC_STRINGS0x2000000))
     != (flags & (SEC_MERGE0x1000000 | SEC_STRINGS0x2000000))
     || ((flags & SEC_MERGE0x1000000)
  && output->bfd_section->entsize != section->entsize)))
{
 output->bfd_section->flags &= ~ (SEC_MERGE0x1000000 | SEC_STRINGS0x2000000);
 flags &= ~ (SEC_MERGE0x1000000 | SEC_STRINGS0x2000000);
}

    output->bfd_section->flags |= flags;

    if (flags & SEC_MERGE0x1000000)
output->bfd_section->entsize = section->entsize;

    /* If SEC_READONLY is not set in the input section, then clear
it from the output section.  */
    if ((section->flags & SEC_READONLY0x008) == 0)
output->bfd_section->flags &= ~SEC_READONLY0x008;

    switch (output->sectype)
{
case normal_section:
 break;
case dsect_section:
case copy_section:
case info_section:
case overlay_section:
 output->bfd_section->flags &= ~SEC_ALLOC0x001;
 break;
case noload_section:
 output->bfd_section->flags &= ~SEC_LOAD0x002;
 output->bfd_section->flags |= SEC_NEVER_LOAD0x200;
 break;
}

    /* Copy over SEC_SMALL_DATA.  */
    if (section->flags & SEC_SMALL_DATA0x800000)
output->bfd_section->flags |= SEC_SMALL_DATA0x800000;

    if (section->alignment_power > output->bfd_section->alignment_power)
output->bfd_section->alignment_power = section->alignment_power;

    if (bfd_get_arch (section->owner) == bfd_arch_tic54x
 && (section->flags & SEC_TIC54X_BLOCK0x40000000) != 0)
{
 output->bfd_section->flags |= SEC_TIC54X_BLOCK0x40000000;
 /* FIXME: This value should really be obtained from the bfd...  */
 output->block_value = 128;
}
  }
1997}

1999/* Compare sections ASEC and BSEC according to SORT.  */

2001static int
2002compare_section (sort_type sort, asection *asec, asection *bsec)
2003{
int ret;

switch (sort)
  {
  default:
    abort ()ld_abort ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c", 2009
, __PRETTY_FUNCTION__);

  case by_alignment_name:
    ret = (bfd_section_alignment (bsec->owner, bsec)((bsec)->alignment_power)
    - bfd_section_alignment (asec->owner, asec)((asec)->alignment_power));
    if (ret)
break;
    /* Fall through.  */

  case by_name:
    ret = strcmp (bfd_get_section_name (asec->owner, asec)((asec)->name + 0),
    bfd_get_section_name (bsec->owner, bsec)((bsec)->name + 0));
    break;

  case by_name_alignment:
    ret = strcmp (bfd_get_section_name (asec->owner, asec)((asec)->name + 0),
    bfd_get_section_name (bsec->owner, bsec)((bsec)->name + 0));
    if (ret)
break;
    /* Fall through.  */

  case by_alignment:
    ret = (bfd_section_alignment (bsec->owner, bsec)((bsec)->alignment_power)
    - bfd_section_alignment (asec->owner, asec)((asec)->alignment_power));
    break;
  }

return ret;
2037}

2039/* Handle wildcard sorting.  This returns the lang_input_section which
 should follow the one we are going to create for SECTION and FILE,
 based on the sorting requirements of WILD.  It returns NULL if the
 new section should just go at the end of the current list.  */

2044static lang_statement_union_type *
2045wild_sort (lang_wild_statement_type *wild,
  struct wildcard_list *sec,
  lang_input_statement_type *file,
  asection *section)
2049{
const char *section_name;
lang_statement_union_type *l;

if (!wild->filenames_sorted
    && (sec == NULL((void*)0) || sec->spec.sorted == none))
  return NULL((void*)0);

section_name = bfd_get_section_name (file->the_bfd, section)((section)->name + 0);
for (l = wild->children.head; l != NULL((void*)0); l = l->header.next)
  {
    lang_input_section_type *ls;

    if (l->header.type != lang_input_section_enum)
continue;
    ls = &l->input_section;

    /* Sorting by filename takes precedence over sorting by section
name.  */

    if (wild->filenames_sorted)
{
 const char *fn, *ln;
 bfd_boolean fa, la;
 int i;

 /* The PE support for the .idata section as generated by
    dlltool assumes that files will be sorted by the name of
    the archive and then the name of the file within the
    archive.  */

 if (file->the_bfd != NULL((void*)0)
     && bfd_my_archive (file->the_bfd)((file->the_bfd)->my_archive) != NULL((void*)0))
   {
     fn = bfd_get_filename (bfd_my_archive (file->the_bfd))((char *) (((file->the_bfd)->my_archive))->filename);
     fa = TRUE1;
   }
 else
   {
     fn = file->filename;
     fa = FALSE0;
   }

 if (bfd_my_archive (ls->section->owner)((ls->section->owner)->my_archive) != NULL((void*)0))
   {
     ln = bfd_get_filename (bfd_my_archive (ls->section->owner))((char *) (((ls->section->owner)->my_archive))->filename
);
     la = TRUE1;
   }
 else
   {
     ln = ls->section->owner->filename;
     la = FALSE0;
   }

 i = strcmp (fn, ln);
 if (i > 0)
   continue;
 else if (i < 0)
   break;

 if (fa || la)
   {
     if (fa)
fn = file->filename;
     if (la)
ln = ls->section->owner->filename;

     i = strcmp (fn, ln);
     if (i > 0)
continue;
     else if (i < 0)
break;
   }
}

    /* Here either the files are not sorted by name, or we are
looking at the sections for this file.  */

    if (sec != NULL((void*)0) && sec->spec.sorted != none)
if (compare_section (sec->spec.sorted, section, ls->section) < 0)
 break;
  }

return l;
2133}

2135/* Expand a wild statement for a particular FILE.  SECTION may be
 NULL, in which case it is a wild card.  */

2138static void
2139output_section_callback (lang_wild_statement_type *ptr,
	 struct wildcard_list *sec,
	 asection *section,
	 lang_input_statement_type *file,
	 void *output)
2144{
lang_statement_union_type *before;

/* Exclude sections that match UNIQUE_SECTION_LIST.  */
if (unique_section_p (section))
  return;

before = wild_sort (ptr, sec, file, section);

/* Here BEFORE points to the lang_input_section which
   should follow the one we are about to add.  If BEFORE
   is NULL, then the section should just go at the end
   of the current list.  */

if (before == NULL((void*)0))
  lang_add_section (&ptr->children, section,
      (lang_output_section_statement_type *) output);
else
  {
    lang_statement_list_type list;
    lang_statement_union_type **pp;

    lang_list_init (&list);
    lang_add_section (&list, section,
	(lang_output_section_statement_type *) output);

    /* If we are discarding the section, LIST.HEAD will
be NULL.  */
    if (list.head != NULL((void*)0))
{
 ASSERT (list.head->header.next == NULL)do { if (!(list.head->header.next == ((void*)0))) info_assert
("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c",2174); } while
 (0);

 for (pp = &ptr->children.head;
      *pp != before;
      pp = &(*pp)->header.next)
   ASSERT (*pp != NULL)do { if (!(*pp != ((void*)0))) info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,2179); } while (0);

 list.head->header.next = *pp;
 *pp = list.head;
}
  }
2185}

2187/* Check if all sections in a wild statement for a particular FILE
 are readonly.  */

2190static void
2191check_section_callback (lang_wild_statement_type *ptr ATTRIBUTE_UNUSED__attribute__ ((__unused__)),
	struct wildcard_list *sec ATTRIBUTE_UNUSED__attribute__ ((__unused__)),
	asection *section,
	lang_input_statement_type *file ATTRIBUTE_UNUSED__attribute__ ((__unused__)),
	void *data)
2196{
/* Exclude sections that match UNIQUE_SECTION_LIST.  */
if (unique_section_p (section))
  return;

if (section->output_section == NULL((void*)0) && (section->flags & SEC_READONLY0x008) == 0)
  ((lang_output_section_statement_type *) data)->all_input_readonly = FALSE0;
2203}

2205/* This is passed a file name which must have been seen already and
 added to the statement tree.  We will see if it has been opened
 already and had its symbols read.  If not then we'll read it.  */

2209static lang_input_statement_type *
2210lookup_name (const char *name)
2211{
lang_input_statement_type *search;

for (search = (lang_input_statement_type *) input_file_chain.head;
     search != NULL((void*)0);
     search = (lang_input_statement_type *) search->next_real_file)
  {
    /* Use the local_sym_name as the name of the file that has
already been loaded as filename might have been transformed
via the search directory lookup mechanism.  */
    const char * filename = search->local_sym_name;

    if (filename == NULL((void*)0) && name == NULL((void*)0))
return search;
    if (filename != NULL((void*)0)
 && name != NULL((void*)0)
 && strcmp (filename, name) == 0)
break;
  }

if (search == NULL((void*)0))
  search = new_afile (name, lang_input_file_is_search_file_enum,
	default_target, FALSE0);

/* If we have already added this file, or this file is not real
   (FIXME: can that ever actually happen?) or the name is NULL
   (FIXME: can that ever actually happen?) don't add this file.  */
if (search->loaded
    || ! search->real
    || search->filename == NULL((void*)0))
  return search;

if (! load_symbols (search, NULL((void*)0)))
  return NULL((void*)0);

return search;
2247}

2249/* Save LIST as a list of libraries whose symbols should not be exported.  */

2251struct excluded_lib
2252{
char *name;
struct excluded_lib *next;
2255};
2256static struct excluded_lib *excluded_libs;

2258void
2259add_excluded_libs (const char *list)
2260{
const char *p = list, *end;

while (*p != '\0')
  {
    struct excluded_lib *entry;
    end = strpbrk (p, ",:");
    if (end == NULL((void*)0))
end = p + strlen (p);
    entry = xmalloc (sizeof (*entry));
    entry->next = excluded_libs;
    entry->name = xmalloc (end - p + 1);
    memcpy (entry->name, p, end - p);
    entry->name[end - p] = '\0';
    excluded_libs = entry;
    if (*end == '\0')
      break;
    p = end + 1;
  }
2279}

2281static void
2282check_excluded_libs (bfd *abfd)
2283{
struct excluded_lib *lib = excluded_libs;

while (lib)
  {
    int len = strlen (lib->name);
    const char *filename = lbasename (abfd->filename);

    if (strcmp (lib->name, "ALL") == 0)
{
 abfd->no_export = TRUE1;
 return;
}

    if (strncmp (lib->name, filename, len) == 0
 && (filename[len] == '\0'
     || (filename[len] == '.' && filename[len + 1] == 'a'
  && filename[len + 2] == '\0')))
{
 abfd->no_export = TRUE1;
 return;
}

    lib = lib->next;
  }
2308}

2310/* Get the symbols for an input file.  */

2312static bfd_boolean
2313load_symbols (lang_input_statement_type *entry,
     lang_statement_list_type *place)
2315{
char **matching;

if (entry->loaded)
  return TRUE1;

ldfile_open_file (entry);

if (! bfd_check_format (entry->the_bfd, bfd_archive)
    && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching))
  {
    bfd_error_type err;
    lang_statement_list_type *hold;
    bfd_boolean bad_load = TRUE1;
    bfd_boolean save_ldlang_sysrooted_script;
    bfd_boolean save_as_needed, save_add_needed;

    err = bfd_get_error ();

    /* See if the emulation has some special knowledge.  */
    if (ldemul_unrecognized_file (entry))
return TRUE1;

    if (err == bfd_error_file_ambiguously_recognized)
{
 char **p;

 einfo (_("%B: file not recognized: %E\n")("%B: file not recognized: %E\n"), entry->the_bfd);
 einfo (_("%B: matching formats:")("%B: matching formats:"), entry->the_bfd);
 for (p = matching; *p != NULL((void*)0); p++)
   einfo (" %s", *p);
 einfo ("%F\n");
}
    else if (err != bfd_error_file_not_recognized
      || place == NULL((void*)0))
 einfo (_("%F%B: file not recognized: %E\n")("%F%B: file not recognized: %E\n"), entry->the_bfd);
    else
bad_load = FALSE0;

    bfd_close (entry->the_bfd);
    entry->the_bfd = NULL((void*)0);

    /* Try to interpret the file as a linker script.  */
    ldfile_open_command_file (entry->filename);

    hold = stat_ptr;
    stat_ptr = place;
    save_ldlang_sysrooted_script = ldlang_sysrooted_script;
    ldlang_sysrooted_script = entry->sysrooted;
    save_as_needed = as_needed;
    as_needed = entry->as_needed;
    save_add_needed = add_needed;
    add_needed = entry->add_needed;

    ldfile_assumed_script = TRUE1;
    parser_input = input_script;
    /* We want to use the same -Bdynamic/-Bstatic as the one for
ENTRY.  */
    config.dynamic_link = entry->dynamic;
    yyparse ();
    ldfile_assumed_script = FALSE0;

    ldlang_sysrooted_script = save_ldlang_sysrooted_script;
    as_needed = save_as_needed;
    add_needed = save_add_needed;
    stat_ptr = hold;

    return ! bad_load;
  }

if (ldemul_recognized_file (entry))
  return TRUE1;

/* We don't call ldlang_add_file for an archive.  Instead, the
   add_symbols entry point will call ldlang_add_file, via the
   add_archive_element callback, for each element of the archive
   which is used.  */
switch (bfd_get_format (entry->the_bfd)((entry->the_bfd)->format))
  {
  default:
    break;

  case bfd_object:
    ldlang_add_file (entry);
    if (trace_files || trace_file_tries)
info_msg ("%I\n", entry);
    break;

  case bfd_archive:
    check_excluded_libs (entry->the_bfd);

    if (entry->whole_archive)
{
 bfd *member = NULL((void*)0);
 bfd_boolean loaded = TRUE1;

 for (;;)
   {
     member = bfd_openr_next_archived_file (entry->the_bfd, member);

     if (member == NULL((void*)0))
break;

     if (! bfd_check_format (member, bfd_object))
{
  einfo (_("%F%B: member %B in archive is not an object\n")("%F%B: member %B in archive is not an object\n"),
	 entry->the_bfd, member);
  loaded = FALSE0;
}

     if (! ((*link_info.callbacks->add_archive_element)
     (&link_info, member, "--whole-archive")))
abort ()ld_abort ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c", 2427
, __PRETTY_FUNCTION__);

     if (! bfd_link_add_symbols (member, &link_info)((*((member)->xvec->_bfd_link_add_symbols)) (member, &
link_info)))
{
  einfo (_("%F%B: could not read symbols: %E\n")("%F%B: could not read symbols: %E\n"), member);
  loaded = FALSE0;
}
   }

 entry->loaded = loaded;
 return loaded;
}
    break;
  }

if (bfd_link_add_symbols (entry->the_bfd, &link_info)((*((entry->the_bfd)->xvec->_bfd_link_add_symbols)) (
entry->the_bfd, &link_info)))
  entry->loaded = TRUE1;
else
  einfo (_("%F%B: could not read symbols: %E\n")("%F%B: could not read symbols: %E\n"), entry->the_bfd);

return entry->loaded;
2448}

2450/* Handle a wild statement.  S->FILENAME or S->SECTION_LIST or both
 may be NULL, indicating that it is a wildcard.  Separate
 lang_input_section statements are created for each part of the
 expansion; they are added after the wild statement S.  OUTPUT is
 the output section.  */

2456static void
2457wild (lang_wild_statement_type *s,
    const char *target ATTRIBUTE_UNUSED__attribute__ ((__unused__)),
    lang_output_section_statement_type *output)
2460{
struct wildcard_list *sec;

walk_wild (s, output_section_callback, output);

for (sec = s->section_list; sec != NULL((void*)0); sec = sec->next)
  {
    if (default_common_section != NULL((void*)0))
break;
    if (sec->spec.name != NULL((void*)0) && strcmp (sec->spec.name, "COMMON") == 0)
{
 /* Remember the section that common is going to in case we
    later get something which doesn't know where to put it.  */
 default_common_section = output;
}
  }
2476}

2478/* Return TRUE iff target is the sought target.  */

2480static int
2481get_target (const bfd_target *target, void *data)
2482{
const char *sought = data;

return strcmp (target->name, sought) == 0;
2486}

2488/* Like strcpy() but convert to lower case as well.  */

2490static void
2491stricpy (char *dest, char *src)
2492{
char c;

while ((c = *src++) != 0)
  *dest++ = TOLOWER (c)_sch_tolower[(c) & 0xff];

*dest = 0;
2499}

2501/* Remove the first occurrence of needle (if any) in haystack
 from haystack.  */

2504static void
2505strcut (char *haystack, char *needle)
2506{
haystack = strstr (haystack, needle);

if (haystack)
  {
    char *src;

    for (src = haystack + strlen (needle); *src;)
*haystack++ = *src++;

    *haystack = 0;
  }
2518}

2520/* Compare two target format name strings.
 Return a value indicating how "similar" they are.  */

2523static int
2524name_compare (char *first, char *second)
2525{
char *copy1;
char *copy2;
int result;

copy1 = xmalloc (strlen (first) + 1);
copy2 = xmalloc (strlen (second) + 1);

/* Convert the names to lower case.  */
stricpy (copy1, first);
stricpy (copy2, second);

/* Remove size and endian strings from the name.  */
strcut (copy1, "big");
strcut (copy1, "little");
strcut (copy2, "big");
strcut (copy2, "little");

/* Return a value based on how many characters match,
   starting from the beginning.   If both strings are
   the same then return 10 * their length.  */
for (result = 0; copy1[result] == copy2[result]; result++)
  if (copy1[result] == 0)
    {
result *= 10;
break;
    }

free (copy1);
free (copy2);

return result;
2557}

2559/* Set by closest_target_match() below.  */
2560static const bfd_target *winner;

2562/* Scan all the valid bfd targets looking for one that has the endianness
 requirement that was specified on the command line, and is the nearest
 match to the original output target.  */

2566static int
2567closest_target_match (const bfd_target *target, void *data)
2568{
const bfd_target *original = data;

if (command_line.endian == ENDIAN_BIG
    && target->byteorder != BFD_ENDIAN_BIG)
  return 0;

if (command_line.endian == ENDIAN_LITTLE
    && target->byteorder != BFD_ENDIAN_LITTLE)
  return 0;

/* Must be the same flavour.  */
if (target->flavour != original->flavour)
  return 0;

/* If we have not found a potential winner yet, then record this one.  */
if (winner == NULL((void*)0))
  {
    winner = target;
    return 0;
  }

/* Oh dear, we now have two potential candidates for a successful match.
   Compare their names and choose the better one.  */
if (name_compare (target->name, original->name)
    > name_compare (winner->name, original->name))
  winner = target;

/* Keep on searching until wqe have checked them all.  */
return 0;
2598}

2600/* Return the BFD target format of the first input file.  */

2602static char *
2603get_first_input_target (void)
2604{
char *target = NULL((void*)0);

LANG_FOR_EACH_INPUT_STATEMENT (s)lang_input_statement_type *s; for (s = (lang_input_statement_type
 *) file_chain.head; s != (lang_input_statement_type *) ((void
*)0); s = (lang_input_statement_type *) s->next)
  {
    if (s->header.type == lang_input_statement_enum
 && s->real)
{
 ldfile_open_file (s);

 if (s->the_bfd != NULL((void*)0)
     && bfd_check_format (s->the_bfd, bfd_object))
   {
     target = bfd_get_target (s->the_bfd)((s->the_bfd)->xvec->name);

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

return target;
2626}

2628const char *
2629lang_get_output_target (void)
2630{
const char *target;

/* Has the user told us which output format to use?  */
if (output_target != NULL((void*)0))
  return output_target;

/* No - has the current target been set to something other than
   the default?  */
if (current_target != default_target)
  return current_target;

/* No - can we determine the format of the first input file?  */
target = get_first_input_target ();
if (target != NULL((void*)0))
  return target;

/* Failed - use the default output target.  */
return default_target;
2649}

2651/* Open the output file.  */

2653static bfd *
2654open_output (const char *name)
2655{
bfd *output;

output_target = lang_get_output_target ();

/* Has the user requested a particular endianness on the command
   line?  */
if (command_line.endian != ENDIAN_UNSET)
  {
    const bfd_target *target;
    enum bfd_endian desired_endian;

    /* Get the chosen target.  */
    target = bfd_search_for_target (get_target, (void *) output_target);

    /* If the target is not supported, we cannot do anything.  */
    if (target != NULL((void*)0))
{
 if (command_line.endian == ENDIAN_BIG)
   desired_endian = BFD_ENDIAN_BIG;
 else
   desired_endian = BFD_ENDIAN_LITTLE;

 /* See if the target has the wrong endianness.  This should
    not happen if the linker script has provided big and
    little endian alternatives, but some scrips don't do
    this.  */
 if (target->byteorder != desired_endian)
   {
     /* If it does, then see if the target provides
 an alternative with the correct endianness.  */
     if (target->alternative_target != NULL((void*)0)
  && (target->alternative_target->byteorder == desired_endian))
output_target = target->alternative_target->name;
     else
{
  /* Try to find a target as similar as possible to
     the default target, but which has the desired
     endian characteristic.  */
  bfd_search_for_target (closest_target_match,
			 (void *) target);

  /* Oh dear - we could not find any targets that
     satisfy our requirements.  */
  if (winner == NULL((void*)0))
    einfo (_("%P: warning: could not find any targets"("%P: warning: could not find any targets" " that match endianness requirement\n"
)
	     " that match endianness requirement\n")("%P: warning: could not find any targets" " that match endianness requirement\n"
));
  else
    output_target = winner->name;
}
   }
}
  }

output = bfd_openw (name, output_target);

if (output == NULL((void*)0))
  {
    if (bfd_get_error () == bfd_error_invalid_target)
einfo (_("%P%F: target %s not found\n")("%P%F: target %s not found\n"), output_target);

    einfo (_("%P%F: cannot open output file %s: %E\n")("%P%F: cannot open output file %s: %E\n"), name);
  }

delete_output_file_on_failure = TRUE1;

if (! bfd_set_format (output, bfd_object))
  einfo (_("%P%F:%s: can not make object file: %E\n")("%P%F:%s: can not make object file: %E\n"), name);
if (! bfd_set_arch_mach (output,((*((output)->xvec->_bfd_set_arch_mach)) (output, ldfile_output_architecture
, ldfile_output_machine))
	   ldfile_output_architecture,((*((output)->xvec->_bfd_set_arch_mach)) (output, ldfile_output_architecture
, ldfile_output_machine))
	   ldfile_output_machine)((*((output)->xvec->_bfd_set_arch_mach)) (output, ldfile_output_architecture
, ldfile_output_machine)))
  einfo (_("%P%F:%s: can not set architecture: %E\n")("%P%F:%s: can not set architecture: %E\n"), name);

link_info.hash = bfd_link_hash_table_create (output)((*((output)->xvec->_bfd_link_hash_table_create)) (output
));
if (link_info.hash == NULL((void*)0))
  einfo (_("%P%F: can not create hash table: %E\n")("%P%F: can not create hash table: %E\n"));

bfd_set_gp_size (output, g_switch_value);
return output;
2734}

2736static void
2737ldlang_open_output (lang_statement_union_type *statement)
2738{
switch (statement->header.type)
  {
  case lang_output_statement_enum:
    ASSERT (output_bfd == NULL)do { if (!(output_bfd == ((void*)0))) info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,2742); } while (0);
    output_bfd = open_output (statement->output_statement.name);
    ldemul_set_output_arch ();
    if (config.magic_demand_paged && !link_info.relocatable)
output_bfd->flags |= D_PAGED0x100;
    else
output_bfd->flags &= ~D_PAGED0x100;
    if (config.text_read_only)
output_bfd->flags |= WP_TEXT0x80;
    else
output_bfd->flags &= ~WP_TEXT0x80;
    if (link_info.traditional_format)
output_bfd->flags |= BFD_TRADITIONAL_FORMAT0x400;
    else
output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT0x400;
    break;

  case lang_target_statement_enum:
    current_target = statement->target_statement.target;
    break;
  default:
    break;
  }
2765}

2767/* Convert between addresses in bytes and sizes in octets.
 For currently supported targets, octets_per_byte is always a power
 of two, so we can use shifts.  */
2770#define TO_ADDR(X)((X) >> opb_shift) ((X) >> opb_shift)
2771#define TO_SIZE(X)((X) << opb_shift) ((X) << opb_shift)

2773/* Support the above.  */
2774static unsigned int opb_shift = 0;

2776static void
2777init_opb (void)
2778{
unsigned x = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
			      ldfile_output_machine);
opb_shift = 0;
if (x > 1)
  while ((x & 1) == 0)
    {
x >>= 1;
++opb_shift;
    }
ASSERT (x == 1)do { if (!(x == 1)) info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,2788); } while (0);
2789}

2791/* Open all the input files.  */

2793static void
2794open_input_bfds (lang_statement_union_type *s, bfd_boolean force)
2795{
for (; s != NULL((void*)0); s = s->header.next)
  {
    switch (s->header.type)
{
case lang_constructors_statement_enum:
 open_input_bfds (constructor_list.head, force);
 break;
case lang_output_section_statement_enum:
 open_input_bfds (s->output_section_statement.children.head, force);
 break;
case lang_wild_statement_enum:
 /* Maybe we should load the file's symbols.  */
 if (s->wild_statement.filename
     && ! wildcardp (s->wild_statement.filename)(strpbrk ((s->wild_statement.filename), "?*[") != ((void*)
0)))
   lookup_name (s->wild_statement.filename);
 open_input_bfds (s->wild_statement.children.head, force);
 break;
case lang_group_statement_enum:
 {
   struct bfd_link_hash_entry *undefs;

   /* We must continually search the entries in the group
      until no new symbols are added to the list of undefined
      symbols.  */

   do
     {
undefs = link_info.hash->undefs_tail;
open_input_bfds (s->group_statement.children.head, TRUE1);
     }
   while (undefs != link_info.hash->undefs_tail);
 }
 break;
case lang_target_statement_enum:
 current_target = s->target_statement.target;
 break;
case lang_input_statement_enum:
 if (s->input_statement.real)
   {
     lang_statement_list_type add;

     s->input_statement.target = current_target;

     /* If we are being called from within a group, and this
 is an archive which has already been searched, then
 force it to be researched unless the whole archive
 has been loaded already.  */
     if (force
  && !s->input_statement.whole_archive
  && s->input_statement.loaded
  && bfd_check_format (s->input_statement.the_bfd,
		       bfd_archive))
s->input_statement.loaded = FALSE0;

     lang_list_init (&add);

     if (! load_symbols (&s->input_statement, &add))
config.make_executable = FALSE0;

     if (add.head != NULL((void*)0))
{
  *add.tail = s->header.next;
  s->header.next = add.head;
}
   }
 break;
default:
 break;
}
  }
2866}

2868/* Add a symbol to a hash of symbols used in DEFINED (NAME) expressions.  */

2870void
2871lang_track_definedness (const char *name)
2872{
if (bfd_hash_lookup (&lang_definedness_table, name, TRUE1, FALSE0) == NULL((void*)0))
  einfo (_("%P%F: bfd_hash_lookup failed creating symbol %s\n")("%P%F: bfd_hash_lookup failed creating symbol %s\n"), name);
2875}

2877/* New-function for the definedness hash table.  */

2879static struct bfd_hash_entry *
2880lang_definedness_newfunc (struct bfd_hash_entry *entry,
	  struct bfd_hash_table *table ATTRIBUTE_UNUSED__attribute__ ((__unused__)),
	  const char *name ATTRIBUTE_UNUSED__attribute__ ((__unused__)))
2883{
struct lang_definedness_hash_entry *ret
  = (struct lang_definedness_hash_entry *) entry;

if (ret == NULL((void*)0))
  ret = (struct lang_definedness_hash_entry *)
    bfd_hash_allocate (table, sizeof (struct lang_definedness_hash_entry));

if (ret == NULL((void*)0))
  einfo (_("%P%F: bfd_hash_allocate failed creating symbol %s\n")("%P%F: bfd_hash_allocate failed creating symbol %s\n"), name);

ret->iteration = -1;
return &ret->root;
2896}

2898/* Return the iteration when the definition of NAME was last updated.  A
 value of -1 means that the symbol is not defined in the linker script
 or the command line, but may be defined in the linker symbol table.  */

2902int
2903lang_symbol_definition_iteration (const char *name)
2904{
struct lang_definedness_hash_entry *defentry
  = (struct lang_definedness_hash_entry *)
  bfd_hash_lookup (&lang_definedness_table, name, FALSE0, FALSE0);

/* We've already created this one on the presence of DEFINED in the
   script, so it can't be NULL unless something is borked elsewhere in
   the code.  */
if (defentry == NULL((void*)0))
  FAIL ()do { info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,2913); } while (0);

return defentry->iteration;
2916}

2918/* Update the definedness state of NAME.  */

2920void
2921lang_update_definedness (const char *name, struct bfd_link_hash_entry *h)
2922{
struct lang_definedness_hash_entry *defentry
  = (struct lang_definedness_hash_entry *)
  bfd_hash_lookup (&lang_definedness_table, name, FALSE0, FALSE0);

/* We don't keep track of symbols not tested with DEFINED.  */
if (defentry == NULL((void*)0))
  return;

/* If the symbol was already defined, and not from an earlier statement
   iteration, don't update the definedness iteration, because that'd
   make the symbol seem defined in the linker script at this point, and
   it wasn't; it was defined in some object.  If we do anyway, DEFINED
   would start to yield false before this point and the construct "sym =
   DEFINED (sym) ? sym : X;" would change sym to X despite being defined
   in an object.  */
if (h->type != bfd_link_hash_undefined
    && h->type != bfd_link_hash_common
    && h->type != bfd_link_hash_new
    && defentry->iteration == -1)
  return;

defentry->iteration = lang_statement_iteration;
2945}

2947/* Add the supplied name to the symbol table as an undefined reference.
 This is a two step process as the symbol table doesn't even exist at
 the time the ld command line is processed.  First we put the name
 on a list, then, once the output file has been opened, transfer the
 name to the symbol table.  */

2953typedef struct bfd_sym_chain ldlang_undef_chain_list_type;

2955#define ldlang_undef_chain_list_headentry_symbol.next entry_symbol.next

2957void
2958ldlang_add_undef (const char *const name)
2959{
ldlang_undef_chain_list_type *new =
  stat_alloc (sizeof (ldlang_undef_chain_list_type));

new->next = ldlang_undef_chain_list_headentry_symbol.next;
ldlang_undef_chain_list_headentry_symbol.next = new;

new->name = xstrdup (name);

if (output_bfd != NULL((void*)0))
  insert_undefined (new->name);
2970}

2972/* Insert NAME as undefined in the symbol table.  */

2974static void
2975insert_undefined (const char *name)
2976{
struct bfd_link_hash_entry *h;

h = bfd_link_hash_lookup (link_info.hash, name, TRUE1, FALSE0, TRUE1);
if (h == NULL((void*)0))
  einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")("%P%F: bfd_link_hash_lookup failed: %E\n"));
if (h->type == bfd_link_hash_new)
  {
    h->type = bfd_link_hash_undefined;
    h->u.undef.abfd = NULL((void*)0);
    bfd_link_add_undef (link_info.hash, h);
  }
2988}

2990/* Run through the list of undefineds created above and place them
 into the linker hash table as undefined symbols belonging to the
 script file.  */

2994static void
2995lang_place_undefineds (void)
2996{
ldlang_undef_chain_list_type *ptr;

for (ptr = ldlang_undef_chain_list_headentry_symbol.next; ptr != NULL((void*)0); ptr = ptr->next)
  insert_undefined (ptr->name);
3001}

3003/* Check for all readonly or some readwrite sections.  */

3005static void
3006check_input_sections
(lang_statement_union_type *s,
 lang_output_section_statement_type *output_section_statement)
3009{
for (; s != (lang_statement_union_type *) NULL((void*)0); s = s->header.next)
  {
    switch (s->header.type)
    {
    case lang_wild_statement_enum:
walk_wild (&s->wild_statement, check_section_callback,
   output_section_statement);
if (! output_section_statement->all_input_readonly)
 return;
break;
    case lang_constructors_statement_enum:
check_input_sections (constructor_list.head,
	      output_section_statement);
if (! output_section_statement->all_input_readonly)
 return;
break;
    case lang_group_statement_enum:
check_input_sections (s->group_statement.children.head,
	      output_section_statement);
if (! output_section_statement->all_input_readonly)
 return;
break;
    default:
break;
    }
  }
3036}

3038/* Update wildcard statements if needed.  */

3040static void
3041update_wild_statements (lang_statement_union_type *s)
3042{
struct wildcard_list *sec;

switch (sort_section)
  {
  default:
    FAIL ()do { info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,3048); } while (0);

  case none:
    break;

  case by_name:
  case by_alignment:
    for (; s != NULL((void*)0); s = s->header.next)
{
 switch (s->header.type)
   {
   default:
     break;

   case lang_wild_statement_enum:
     sec = s->wild_statement.section_list;
     if (sec != NULL((void*)0))
{
  switch (sec->spec.sorted)
    {
    case none:
      sec->spec.sorted = sort_section;
      break;
    case by_name:
      if (sort_section == by_alignment)
	sec->spec.sorted = by_name_alignment;
      break;
    case by_alignment:
      if (sort_section == by_name)
	sec->spec.sorted = by_alignment_name;
      break;
    default:
      break;
    }
}
     break;

   case lang_constructors_statement_enum:
     update_wild_statements (constructor_list.head);
     break;

   case lang_output_section_statement_enum:
     update_wild_statements
(s->output_section_statement.children.head);
     break;

   case lang_group_statement_enum:
     update_wild_statements (s->group_statement.children.head);
     break;
   }
}
    break;
  }
3101}

3103/* Open input files and attach to output sections.  */

3105static void
3106map_input_to_output_sections
(lang_statement_union_type *s, const char *target,
 lang_output_section_statement_type *os)
3109{
for (; s != NULL((void*)0); s = s->header.next)
  {
    switch (s->header.type)
{
case lang_wild_statement_enum:
 wild (&s->wild_statement, target, os);
 break;
case lang_constructors_statement_enum:
 map_input_to_output_sections (constructor_list.head,
			target,
			os);
 break;
case lang_output_section_statement_enum:
 if (s->output_section_statement.constraint)
   {
     if (s->output_section_statement.constraint != ONLY_IF_RW368
  && s->output_section_statement.constraint != ONLY_IF_RO367)
break;
     s->output_section_statement.all_input_readonly = TRUE1;
     check_input_sections (s->output_section_statement.children.head,
		    &s->output_section_statement);
     if ((s->output_section_statement.all_input_readonly
   && s->output_section_statement.constraint == ONLY_IF_RW368)
  || (!s->output_section_statement.all_input_readonly
      && s->output_section_statement.constraint == ONLY_IF_RO367))
{
  s->output_section_statement.constraint = -1;
  break;
}
   }

 map_input_to_output_sections (s->output_section_statement.children.head,
			target,
			&s->output_section_statement);
 break;
case lang_output_statement_enum:
 break;
case lang_target_statement_enum:
 target = s->target_statement.target;
 break;
case lang_group_statement_enum:
 map_input_to_output_sections (s->group_statement.children.head,
			target,
			os);
 break;
case lang_data_statement_enum:
 /* Make sure that any sections mentioned in the expression
    are initialized.  */
 exp_init_os (s->data_statement.exp);
 if (os != NULL((void*)0) && os->bfd_section == NULL((void*)0))
   init_os (os, NULL((void*)0));
 /* The output section gets contents, and then we inspect for
    any flags set in the input script which override any ALLOC.  */
 os->bfd_section->flags |= SEC_HAS_CONTENTS0x100;
 if (!(os->flags & SEC_NEVER_LOAD0x200))
   os->bfd_section->flags |= SEC_ALLOC0x001 | SEC_LOAD0x002;
 break;
case lang_fill_statement_enum:
case lang_input_section_enum:
case lang_object_symbols_statement_enum:
case lang_reloc_statement_enum:
case lang_padding_statement_enum:
case lang_input_statement_enum:
 if (os != NULL((void*)0) && os->bfd_section == NULL((void*)0))
   init_os (os, NULL((void*)0));
 break;
case lang_assignment_statement_enum:
 if (os != NULL((void*)0) && os->bfd_section == NULL((void*)0))
   init_os (os, NULL((void*)0));

 /* Make sure that any sections mentioned in the assignment
    are initialized.  */
 exp_init_os (s->assignment_statement.exp);
 break;
case lang_afile_asection_pair_statement_enum:
 FAIL ()do { info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,3185); } while (0);
 break;
case lang_address_statement_enum:
 /* Mark the specified section with the supplied address.  

    If this section was actually a segment marker, then the
    directive is ignored if the linker script explicitly
    processed the segment marker.  Originally, the linker
    treated segment directives (like -Ttext on the
    command-line) as section directives.  We honor the
    section directive semantics for backwards compatibilty;
    linker scripts that do not specifically check for
    SEGMENT_START automatically get the old semantics.  */
 if (!s->address_statement.segment 
     || !s->address_statement.segment->used)
   {
     lang_output_section_statement_type *aos
= (lang_output_section_statement_lookup
   (s->address_statement.section_name));
     
     if (aos->bfd_section == NULL((void*)0))
init_os (aos, NULL((void*)0));
     aos->addr_tree = s->address_statement.address;
   }
 break;
}
  }
3212}

3214/* An output section might have been removed after its statement was
 added.  For example, ldemul_before_allocation can remove dynamic
 sections if they turn out to be not needed.  Clean them up here.  */

3218void
3219strip_excluded_output_sections (void)
3220{
lang_output_section_statement_type *os;

/* Run lang_size_sections (if not already done).  */
if (expld.phase != lang_mark_phase_enum)
  {
    expld.phase = lang_mark_phase_enum;
    expld.dataseg.phase = exp_dataseg_none;
    one_lang_size_sections_pass (NULL((void*)0), FALSE0);
    lang_reset_memory_regions ();
  }

for (os = &lang_output_section_statement.head->output_section_statement;
     os != NULL((void*)0);
     os = os->next)
  {
    asection *output_section;
    bfd_boolean exclude;

    if (os->constraint == -1)
continue;

    output_section = os->bfd_section;
    if (output_section == NULL((void*)0))
continue;

    exclude = (output_section->rawsize == 0
 && (output_section->flags & SEC_KEEP0x400000) == 0
 && !bfd_section_removed_from_list (output_bfd,((output_section)->next == ((void*)0) ? (output_bfd)->section_last
 != (output_section) : (output_section)->next->prev != (
output_section))
				    output_section)((output_section)->next == ((void*)0) ? (output_bfd)->section_last
 != (output_section) : (output_section)->next->prev != (
output_section)));

    /* Some sections have not yet been sized, notably .gnu.version,
.dynsym, .dynstr and .hash.  These all have SEC_LINKER_CREATED
input sections, so don't drop output sections that have such
input sections unless they are also marked SEC_EXCLUDE.  */
    if (exclude && output_section->map_head.s != NULL((void*)0))
{
 asection *s;

 for (s = output_section->map_head.s; s != NULL((void*)0); s = s->map_head.s)
   if ((s->flags & SEC_LINKER_CREATED0x200000) != 0
&& (s->flags & SEC_EXCLUDE0x8000) == 0)
     {
exclude = FALSE0;
break;
     }
}

    /* TODO: Don't just junk map_head.s, turn them into link_orders.  */
    output_section->map_head.link_order = NULL((void*)0);
    output_section->map_tail.link_order = NULL((void*)0);

    if (exclude)
{
 /* We don't set bfd_section to NULL since bfd_section of the
    removed output section statement may still be used.  */
 os->ignored = TRUE1;
 output_section->flags |= SEC_EXCLUDE0x8000;
 bfd_section_list_remove (output_bfd, output_section)do { asection *_s = output_section; asection *_next = _s->
next; asection *_prev = _s->prev; if (_prev) _prev->next
 = _next; else (output_bfd)->sections = _next; if (_next) _next
->prev = _prev; else (output_bfd)->section_last = _prev
; } while (0);
 output_bfd->section_count--;
}
  }

/* Stop future calls to lang_add_section from messing with map_head
   and map_tail link_order fields.  */
stripped_excluded_sections = TRUE1;
3286}

3288static void
3289print_output_section_statement
(lang_output_section_statement_type *output_section_statement)
3291{
asection *section = output_section_statement->bfd_section;
int len;

if (output_section_statement->constraint == -1)
  return;

if (output_section_statement != abs_output_section)
  {
    minfo ("\n%s", output_section_statement->name);

    if (section != NULL((void*)0))
{
 print_dot = section->vma;

 len = strlen (output_section_statement->name);
 if (len >= SECTION_NAME_MAP_LENGTH(16) - 1)
   {
     print_nl ();
     len = 0;
   }
 while (len < SECTION_NAME_MAP_LENGTH(16))
   {
     print_space ();
     ++len;
   }

 minfo ("0x%V %W", section->vma, section->size);

 if (output_section_statement->load_base != NULL((void*)0))
   {
     bfd_vma addr;

     addr = exp_get_abs_int (output_section_statement->load_base, 0,
		      "load base");
     minfo (_(" load address 0x%V")(" load address 0x%V"), addr);
   }
}

    print_nl ();
  }

print_statement_list (output_section_statement->children.head,
	output_section_statement);
3335}

3337/* Scan for the use of the destination in the right hand side
 of an expression.  In such cases we will not compute the
 correct expression, since the value of DST that is used on
 the right hand side will be its final value, not its value
 just before this expression is evaluated.  */
 
3343static bfd_boolean
3344scan_for_self_assignment (const char * dst, etree_type * rhs)
3345{
if (rhs == NULL((void*)0) || dst == NULL((void*)0))
  return FALSE0;

switch (rhs->type.node_class)
  {
  case etree_binary:
    return scan_for_self_assignment (dst, rhs->binary.lhs)
||   scan_for_self_assignment (dst, rhs->binary.rhs);

  case etree_trinary:
    return scan_for_self_assignment (dst, rhs->trinary.lhs)
||   scan_for_self_assignment (dst, rhs->trinary.rhs);

  case etree_assign:
  case etree_provided:
  case etree_provide:
    if (strcmp (dst, rhs->assign.dst) == 0)
return TRUE1;
    return scan_for_self_assignment (dst, rhs->assign.src);

  case etree_unary:
    return scan_for_self_assignment (dst, rhs->unary.child);

  case etree_value:
    if (rhs->value.str)
return strcmp (dst, rhs->value.str) == 0;
    return FALSE0;

  case etree_name:
    if (rhs->name.name)
return strcmp (dst, rhs->name.name) == 0;
    return FALSE0;

  default:
    break;
  }

return FALSE0;
3384}


3387static void
3388print_assignment (lang_assignment_statement_type *assignment,
  lang_output_section_statement_type *output_section)
3390{
unsigned int i;
bfd_boolean is_dot;
bfd_boolean computation_is_valid = TRUE1;
etree_type *tree;

for (i = 0; i < SECTION_NAME_MAP_LENGTH(16); i++)
  print_space ();

if (assignment->exp->type.node_class == etree_assert)
  {
    is_dot = FALSE0;
    tree = assignment->exp->assert_s.child;
    computation_is_valid = TRUE1;
  }
else
  {
    const char *dst = assignment->exp->assign.dst;

    is_dot = (dst[0] == '.' && dst[1] == 0);
    tree = assignment->exp->assign.src;
    computation_is_valid = is_dot || (scan_for_self_assignment (dst, tree) == FALSE0);
  }

exp_fold_tree (tree, output_section->bfd_section, &print_dot);
if (expld.result.valid_p)
  {
    bfd_vma value;

    if (computation_is_valid)
{
 value = expld.result.value;

 if (expld.result.section)
   value += expld.result.section->vma;

 minfo ("0x%V", value);
 if (is_dot)
   print_dot = value;
}
    else
{
 struct bfd_link_hash_entry *h;

 h = bfd_link_hash_lookup (link_info.hash, assignment->exp->assign.dst,
		    FALSE0, FALSE0, TRUE1);
 if (h)
   {
     value = h->u.def.value;

     if (expld.result.section)
     value += expld.result.section->vma;

     minfo ("[0x%V]", value);
   }
 else
   minfo ("[unresolved]");
}
  }
else
  {
    minfo ("*undef*   ");
3452#ifdef BFD64
    minfo ("        ");
3454#endif
  }

minfo ("                ");
exp_print_tree (assignment->exp);
print_nl ();
3460}

3462static void
3463print_input_statement (lang_input_statement_type *statm)
3464{
if (statm->filename != NULL((void*)0))
  {
    fprintf (config.map_file, "LOAD %s\n", statm->filename);
  }
3469}

3471/* Print all symbols defined in a particular section.  This is called
 via bfd_link_hash_traverse, or by print_all_symbols.  */

3474static bfd_boolean
3475print_one_symbol (struct bfd_link_hash_entry *hash_entry, void *ptr)
3476{
asection *sec = ptr;

if ((hash_entry->type == bfd_link_hash_defined
     || hash_entry->type == bfd_link_hash_defweak)
    && sec == hash_entry->u.def.section)
  {
    int i;

    for (i = 0; i < SECTION_NAME_MAP_LENGTH(16); i++)
print_space ();
    minfo ("0x%V   ",
    (hash_entry->u.def.value
     + hash_entry->u.def.section->output_offset
     + hash_entry->u.def.section->output_section->vma));

    minfo ("             %T\n", hash_entry->root.string);
  }

return TRUE1;
3496}

3498static void
3499print_all_symbols (sec)
   asection *sec;
3501{
struct fat_user_section_struct *ud = get_userdata (sec)((sec)->userdata);
struct map_symbol_def *def;

if (!ud)
  return;

*ud->map_symbol_def_tail = 0;
for (def = ud->map_symbol_def_head; def; def = def->next)
  print_one_symbol (def->entry, sec);
3511}

3513/* Print information about an input section to the map file.  */

3515static void
3516print_input_section (asection *i)
3517{
bfd_size_type size = i->size;

init_opb ();

  {
    int len;
    bfd_vma addr;

    print_space ();
    minfo ("%s", i->name);

    len = 1 + strlen (i->name);
    if (len >= SECTION_NAME_MAP_LENGTH(16) - 1)
{
 print_nl ();
 len = 0;
}
    while (len < SECTION_NAME_MAP_LENGTH(16))
{
 print_space ();
 ++len;
}

    if (i->output_section != NULL((void*)0) && i->output_section->owner == output_bfd)
addr = i->output_section->vma + i->output_offset;
    else
{
 addr = print_dot;
 size = 0;
}

    minfo ("0x%V %W %B\n", addr, TO_ADDR (size)((size) >> opb_shift), i->owner);

    if (size != i->rawsize && i->rawsize != 0)
{
 len = SECTION_NAME_MAP_LENGTH(16) + 3;
3554#ifdef BFD64
 len += 16;
3556#else
 len += 8;
3558#endif
 while (len > 0)
   {
     print_space ();
     --len;
   }

 minfo (_("%W (size before relaxing)\n")("%W (size before relaxing)\n"), i->rawsize);
}

    if (i->output_section != NULL((void*)0) && i->output_section->owner == output_bfd)
{
 if (link_info.reduce_memory_overheads)
   bfd_link_hash_traverse (link_info.hash, print_one_symbol, i);
 else
   print_all_symbols (i);

 print_dot = addr + TO_ADDR (size)((size) >> opb_shift);
}
  }
3578}

3580static void
3581print_fill_statement (lang_fill_statement_type *fill)
3582{
size_t size;
unsigned char *p;
fputs (" FILL mask 0x", config.map_file);
for (p = fill->fill->data, size = fill->fill->size; size != 0; p++, size--)
  fprintf (config.map_file, "%02x", *p);
fputs ("\n", config.map_file);
3589}

3591static void
3592print_data_statement (lang_data_statement_type *data)
3593{
int i;
bfd_vma addr;
bfd_size_type size;
const char *name;

init_opb ();
for (i = 0; i < SECTION_NAME_MAP_LENGTH(16); i++)
  print_space ();

addr = data->output_offset;
if (data->output_section != NULL((void*)0))
  addr += data->output_section->vma;

switch (data->type)
  {
  default:
    abort ()ld_abort ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c", 3610
, __PRETTY_FUNCTION__);
  case BYTE285:
    size = BYTE_SIZE(1);
    name = "BYTE";
    break;
  case SHORT284:
    size = SHORT_SIZE(2);
    name = "SHORT";
    break;
  case LONG283:
    size = LONG_SIZE(4);
    name = "LONG";
    break;
  case QUAD281:
    size = QUAD_SIZE(8);
    name = "QUAD";
    break;
  case SQUAD282:
    size = QUAD_SIZE(8);
    name = "SQUAD";
    break;
  }

minfo ("0x%V %W %s 0x%v", addr, size, name, data->value);

if (data->exp->type.node_class != etree_value)
  {
    print_space ();
    exp_print_tree (data->exp);
  }

print_nl ();

print_dot = addr + TO_ADDR (size)((size) >> opb_shift);
3644}

3646/* Print an address statement.  These are generated by options like
 -Ttext.  */

3649static void
3650print_address_statement (lang_address_statement_type *address)
3651{
minfo (_("Address of section %s set to ")("Address of section %s set to "), address->section_name);
exp_print_tree (address->address);
print_nl ();
3655}

3657/* Print a reloc statement.  */

3659static void
3660print_reloc_statement (lang_reloc_statement_type *reloc)
3661{
int i;
bfd_vma addr;
bfd_size_type size;

init_opb ();
for (i = 0; i < SECTION_NAME_MAP_LENGTH(16); i++)
  print_space ();

addr = reloc->output_offset;
if (reloc->output_section != NULL((void*)0))
  addr += reloc->output_section->vma;

size = bfd_get_reloc_size (reloc->howto);

minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name);

if (reloc->name != NULL((void*)0))
  minfo ("%s+", reloc->name);
else
  minfo ("%s+", reloc->section->name);

exp_print_tree (reloc->addend_exp);

print_nl ();

print_dot = addr + TO_ADDR (size)((size) >> opb_shift);
3688}

3690static void
3691print_padding_statement (lang_padding_statement_type *s)
3692{
int len;
bfd_vma addr;

init_opb ();
minfo (" *fill*");

len = sizeof " *fill*" - 1;
while (len < SECTION_NAME_MAP_LENGTH(16))
  {
    print_space ();
    ++len;
  }

addr = s->output_offset;
if (s->output_section != NULL((void*)0))
  addr += s->output_section->vma;
minfo ("0x%V %W ", addr, (bfd_vma) s->size);

if (s->fill->size != 0)
  {
    size_t size;
    unsigned char *p;
    for (p = s->fill->data, size = s->fill->size; size != 0; p++, size--)
fprintf (config.map_file, "%02x", *p);
  }

print_nl ();

print_dot = addr + TO_ADDR (s->size)((s->size) >> opb_shift);
3722}

3724static void
3725print_wild_statement (lang_wild_statement_type *w,
      lang_output_section_statement_type *os)
3727{
struct wildcard_list *sec;

print_space ();

if (w->filenames_sorted)
  minfo ("SORT(");
if (w->filename != NULL((void*)0))
  minfo ("%s", w->filename);
else
  minfo ("*");
if (w->filenames_sorted)
  minfo (")");

minfo ("(");
for (sec = w->section_list; sec; sec = sec->next)
  {
    if (sec->spec.sorted)
minfo ("SORT(");
    if (sec->spec.exclude_name_list != NULL((void*)0))
{
 name_list *tmp;
 minfo ("EXCLUDE_FILE(%s", sec->spec.exclude_name_list->name);
 for (tmp = sec->spec.exclude_name_list->next; tmp; tmp = tmp->next)
   minfo (" %s", tmp->name);
 minfo (") ");
}
    if (sec->spec.name != NULL((void*)0))
minfo ("%s", sec->spec.name);
    else
minfo ("*");
    if (sec->spec.sorted)
minfo (")");
    if (sec->next)
minfo (" ");
  }
minfo (")");

print_nl ();

print_statement_list (w->children.head, os);
3768}

3770/* Print a group statement.  */

3772static void
3773print_group (lang_group_statement_type *s,
    lang_output_section_statement_type *os)
3775{
fprintf (config.map_file, "START GROUP\n");
print_statement_list (s->children.head, os);
fprintf (config.map_file, "END GROUP\n");
3779}

3781/* Print the list of statements in S.
 This can be called for any statement type.  */

3784static void
3785print_statement_list (lang_statement_union_type *s,
      lang_output_section_statement_type *os)
3787{
while (s != NULL((void*)0))
  {
    print_statement (s, os);
    s = s->header.next;
  }
3793}

3795/* Print the first statement in statement list S.
 This can be called for any statement type.  */

3798static void
3799print_statement (lang_statement_union_type *s,
 lang_output_section_statement_type *os)
3801{
switch (s->header.type)
  {
  default:
    fprintf (config.map_file, _("Fail with %d\n")("Fail with %d\n"), s->header.type);
    FAIL ()do { info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,3806); } while (0);
    break;
  case lang_constructors_statement_enum:
    if (constructor_list.head != NULL((void*)0))
{
 if (constructors_sorted)
   minfo (" SORT (CONSTRUCTORS)\n");
 else
   minfo (" CONSTRUCTORS\n");
 print_statement_list (constructor_list.head, os);
}
    break;
  case lang_wild_statement_enum:
    print_wild_statement (&s->wild_statement, os);
    break;
  case lang_address_statement_enum:
    print_address_statement (&s->address_statement);
    break;
  case lang_object_symbols_statement_enum:
    minfo (" CREATE_OBJECT_SYMBOLS\n");
    break;
  case lang_fill_statement_enum:
    print_fill_statement (&s->fill_statement);
    break;
  case lang_data_statement_enum:
    print_data_statement (&s->data_statement);
    break;
  case lang_reloc_statement_enum:
    print_reloc_statement (&s->reloc_statement);
    break;
  case lang_input_section_enum:
    print_input_section (s->input_section.section);
    break;
  case lang_padding_statement_enum:
    print_padding_statement (&s->padding_statement);
    break;
  case lang_output_section_statement_enum:
    print_output_section_statement (&s->output_section_statement);
    break;
  case lang_assignment_statement_enum:
    print_assignment (&s->assignment_statement, os);
    break;
  case lang_target_statement_enum:
    fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target);
    break;
  case lang_output_statement_enum:
    minfo ("OUTPUT(%s", s->output_statement.name);
    if (output_target != NULL((void*)0))
minfo (" %s", output_target);
    minfo (")\n");
    break;
  case lang_input_statement_enum:
    print_input_statement (&s->input_statement);
    break;
  case lang_group_statement_enum:
    print_group (&s->group_statement, os);
    break;
  case lang_afile_asection_pair_statement_enum:
    FAIL ()do { info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,3864); } while (0);
    break;
  }
3867}

3869static void
3870print_statements (void)
3871{
print_statement_list (statement_list.head, abs_output_section);
3873}

3875/* Print the first N statements in statement list S to STDERR.
 If N == 0, nothing is printed.
 If N < 0, the entire list is printed.
 Intended to be called from GDB.  */

3880void
3881dprint_statement (lang_statement_union_type *s, int n)
3882{
FILE *map_save = config.map_file;

config.map_file = stderr(&__sF[2]);

if (n < 0)
  print_statement_list (s, abs_output_section);
else
  {
    while (s && --n >= 0)
{
 print_statement (s, abs_output_section);
 s = s->header.next;
}
  }

config.map_file = map_save;
3899}

3901static void
3902insert_pad (lang_statement_union_type **ptr,
   fill_type *fill,
   unsigned int alignment_needed,
   asection *output_section,
   bfd_vma dot)
3907{
static fill_type zero_fill = { 1, { 0 } };
lang_statement_union_type *pad = NULL((void*)0);

if (ptr != &statement_list.head)
  pad = ((lang_statement_union_type *)
  ((char *) ptr - offsetof (lang_statement_union_type, header.next)__builtin_offsetof(lang_statement_union_type, header.next)));
if (pad != NULL((void*)0)
    && pad->header.type == lang_padding_statement_enum
    && pad->padding_statement.output_section == output_section)
  {
    /* Use the existing pad statement.  */
  }
else if ((pad = *ptr) != NULL((void*)0)
    && pad->header.type == lang_padding_statement_enum
    && pad->padding_statement.output_section == output_section)
  {
    /* Use the existing pad statement.  */
  }
else
  {
    /* Make a new padding statement, linked into existing chain.  */
    pad = stat_alloc (sizeof (lang_padding_statement_type));
    pad->header.next = *ptr;
    *ptr = pad;
    pad->header.type = lang_padding_statement_enum;
    pad->padding_statement.output_section = output_section;
    if (fill == NULL((void*)0))
fill = &zero_fill;
    pad->padding_statement.fill = fill;
  }
pad->padding_statement.output_offset = dot - output_section->vma;
pad->padding_statement.size = alignment_needed;
output_section->size += alignment_needed;
3941}

3943/* Work out how much this section will move the dot point.  */

3945static bfd_vma
3946size_input_section
(lang_statement_union_type **this_ptr,
 lang_output_section_statement_type *output_section_statement,
 fill_type *fill,
 bfd_vma dot)
3951{
lang_input_section_type *is = &((*this_ptr)->input_section);
asection *i = is->section;

if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag
    && (i->flags & SEC_EXCLUDE0x8000) == 0)
  {
    unsigned int alignment_needed;
    asection *o;

    /* Align this section first to the input sections requirement,
then to the output section's requirement.  If this alignment
is greater than any seen before, then record it too.  Perform
the alignment by inserting a magic 'padding' statement.  */

    if (output_section_statement->subsection_alignment != -1)
i->alignment_power = output_section_statement->subsection_alignment;

    o = output_section_statement->bfd_section;
    if (o->alignment_power < i->alignment_power)
o->alignment_power = i->alignment_power;

    alignment_needed = align_power (dot, i->alignment_power)(((dot) + ((bfd_vma) 1 << (i->alignment_power)) - 1)
 & ((bfd_vma) -1 << (i->alignment_power))) - dot;

    if (alignment_needed != 0)
{
 insert_pad (this_ptr, fill, TO_SIZE (alignment_needed)((alignment_needed) << opb_shift), o, dot);
 dot += alignment_needed;
}

    /* Remember where in the output section this input section goes.  */

    i->output_offset = dot - o->vma;

    /* Mark how big the output section must be to contain this now.  */
    dot += TO_ADDR (i->size)((i->size) >> opb_shift);
    o->size = TO_SIZE (dot - o->vma)((dot - o->vma) << opb_shift);
  }
else
  {
    i->output_offset = i->vma - output_section_statement->bfd_section->vma;
  }

return dot;
3995}

3997static int
3998sort_sections_by_lma (const void *arg1, const void *arg2)
3999{
const asection *sec1 = *(const asection **) arg1;
const asection *sec2 = *(const asection **) arg2;

if (bfd_section_lma (sec1->owner, sec1)((sec1)->lma)
    < bfd_section_lma (sec2->owner, sec2)((sec2)->lma))
  return -1;
else if (bfd_section_lma (sec1->owner, sec1)((sec1)->lma)
  > bfd_section_lma (sec2->owner, sec2)((sec2)->lma))
  return 1;

return 0;
4011}

4013#define IGNORE_SECTION(s)((s->flags & 0x200) != 0 || (s->flags & 0x001) ==
|| ((s->flags & 0x400) != 0 && (s->flags
 & 0x002) == 0)) \
((s->flags & SEC_NEVER_LOAD0x200) != 0				\
 || (s->flags & SEC_ALLOC0x001) == 0				\
 || ((s->flags & SEC_THREAD_LOCAL0x400) != 0			\
&& (s->flags & SEC_LOAD0x002) == 0))

4019/* Check to see if any allocated sections overlap with other allocated
 sections.  This can happen if a linker script specifies the output
 section addresses of the two sections.  */

4023static void
4024lang_check_section_addresses (void)
4025{
asection *s, *os;
asection **sections, **spp;
unsigned int count;
bfd_vma s_start;
bfd_vma s_end;
bfd_vma os_start;
bfd_vma os_end;
bfd_size_type amt;

if (bfd_count_sections (output_bfd)((output_bfd)->section_count) <= 1)
  return;

amt = bfd_count_sections (output_bfd)((output_bfd)->section_count) * sizeof (asection *);
sections = xmalloc (amt);

/* Scan all sections in the output list.  */
count = 0;
for (s = output_bfd->sections; s != NULL((void*)0); s = s->next)
  {
    /* Only consider loadable sections with real contents.  */
    if (IGNORE_SECTION (s)((s->flags & 0x200) != 0 || (s->flags & 0x001) ==
|| ((s->flags & 0x400) != 0 && (s->flags
 & 0x002) == 0)) || s->size == 0)
continue;

    sections[count] = s;
    count++;
  }

if (count <= 1)
  return;

qsort (sections, (size_t) count, sizeof (asection *),
sort_sections_by_lma);

spp = sections;
s = *spp++;
s_start = bfd_section_lma (output_bfd, s)((s)->lma);
s_end = s_start + TO_ADDR (s->size)((s->size) >> opb_shift) - 1;
for (count--; count; count--)
  {
    /* We must check the sections' LMA addresses not their VMA
addresses because overlay sections can have overlapping VMAs
but they must have distinct LMAs.  */
    os = s;
    os_start = s_start; 
    os_end = s_end;
    s = *spp++;
    s_start = bfd_section_lma (output_bfd, s)((s)->lma);
    s_end = s_start + TO_ADDR (s->size)((s->size) >> opb_shift) - 1;

    /* Look for an overlap.  */
    if (s_end >= os_start && s_start <= os_end)
einfo (_("%X%P: section %s [%V -> %V] overlaps section %s [%V -> %V]\n")("%X%P: section %s [%V -> %V] overlaps section %s [%V -> %V]\n"
),
      s->name, s_start, s_end, os->name, os_start, os_end);
  }

free (sections);
4082}

4084/* Make sure the new address is within the region.  We explicitly permit the
 current address to be at the exact end of the region when the address is
 non-zero, in case the region is at the end of addressable memory and the
 calculation wraps around.  */

4089static void
4090os_region_check (lang_output_section_statement_type *os,
 lang_memory_region_type *region,
 etree_type *tree,
 bfd_vma base)
4094{
if ((region->current < region->origin
     || (region->current - region->origin > region->length))
    && ((region->current != region->origin + region->length)
 || base == 0))
  {
    if (tree != NULL((void*)0))
{
 einfo (_("%X%P: address 0x%v of %B section %s"("%X%P: address 0x%v of %B section %s" " is not within region %s\n"
)
   " is not within region %s\n")("%X%P: address 0x%v of %B section %s" " is not within region %s\n"
),
 region->current,
 os->bfd_section->owner,
 os->bfd_section->name,
 region->name);
}
    else
{
 einfo (_("%X%P: region %s is full (%B section %s)\n")("%X%P: region %s is full (%B section %s)\n"),
 region->name,
 os->bfd_section->owner,
 os->bfd_section->name);
}
    /* Reset the region pointer.  */
    region->current = region->origin;
  }
4119}

4121/* Set the sizes for all the output sections.  */

4123static bfd_vma
4124lang_size_sections_1
(lang_statement_union_type *s,
 lang_output_section_statement_type *output_section_statement,
 lang_statement_union_type **prev,
 fill_type *fill,
 bfd_vma dot,
 bfd_boolean *relax,
 bfd_boolean check_regions)
4132{
/* Size up the sections from their constituent parts.  */
for (; s != NULL((void*)0); s = s->header.next)
  {
    switch (s->header.type)
{
case lang_output_section_statement_enum:
 {
   bfd_vma newdot, after;
   lang_output_section_statement_type *os;

   os = &s->output_section_statement;
   if (os->addr_tree != NULL((void*)0))
     {
os->processed = FALSE0;
exp_fold_tree (os->addr_tree, bfd_abs_section_ptr((asection *) &bfd_abs_section), &dot);

if (!expld.result.valid_p
    && expld.phase != lang_mark_phase_enum)
  einfo (_("%F%S: non constant or forward reference"("%F%S: non constant or forward reference" " address expression for section %s\n"
)
	   " address expression for section %s\n")("%F%S: non constant or forward reference" " address expression for section %s\n"
),
	 os->name);

dot = expld.result.value + expld.result.section->vma;
     }

   if (os->bfd_section == NULL((void*)0))
     /* This section was removed or never actually created.  */
     break;

   /* If this is a COFF shared library section, use the size and
      address from the input section.  FIXME: This is COFF
      specific; it would be cleaner if there were some other way
      to do this, but nothing simple comes to mind.  */
   if ((bfd_get_flavour (output_bfd)((output_bfd)->xvec->flavour) == bfd_target_ecoff_flavour
 || bfd_get_flavour (output_bfd)((output_bfd)->xvec->flavour) == bfd_target_coff_flavour)
&& (os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY0x10000000) != 0)
     {
asection *input;

if (os->children.head == NULL((void*)0)
    || os->children.head->header.next != NULL((void*)0)
    || (os->children.head->header.type
	!= lang_input_section_enum))
  einfo (_("%P%X: Internal error on COFF shared library"("%P%X: Internal error on COFF shared library" " section %s\n"
)
	   " section %s\n")("%P%X: Internal error on COFF shared library" " section %s\n"
), os->name);

input = os->children.head->input_section.section;
bfd_set_section_vma (os->bfd_section->owner,(((os->bfd_section)->vma = (os->bfd_section)->lma
 = (((input)->vma))), ((os->bfd_section)->user_set_vma
 = 1), 1)
		     os->bfd_section,(((os->bfd_section)->vma = (os->bfd_section)->lma
 = (((input)->vma))), ((os->bfd_section)->user_set_vma
 = 1), 1)
		     bfd_section_vma (input->owner, input))(((os->bfd_section)->vma = (os->bfd_section)->lma
 = (((input)->vma))), ((os->bfd_section)->user_set_vma
 = 1), 1);
os->bfd_section->size = input->size;
break;
     }

   newdot = dot;
   if (bfd_is_abs_section (os->bfd_section)((os->bfd_section) == ((asection *) &bfd_abs_section)))
     {
/* No matter what happens, an abs section starts at zero.  */
ASSERT (os->bfd_section->vma == 0)do { if (!(os->bfd_section->vma == 0)) info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,4191); } while (0);
     }
   else
     {
int align;

if (os->addr_tree == NULL((void*)0))
  {
    /* No address specified for this section, get one
       from the region specification.  */
    if (os->region == NULL((void*)0)
	|| ((os->bfd_section->flags & (SEC_ALLOC0x001 | SEC_LOAD0x002))
	    && os->region->name[0] == '*'
	    && strcmp (os->region->name,
		       DEFAULT_MEMORY_REGION"*default*") == 0))
      {
	os->region = lang_memory_default (os->bfd_section);
      }

    /* If a loadable section is using the default memory
       region, and some non default memory regions were
       defined, issue an error message.  */
    if (!IGNORE_SECTION (os->bfd_section)((os->bfd_section->flags & 0x200) != 0 || (os->bfd_section
->flags & 0x001) == 0 || ((os->bfd_section->flags
 & 0x400) != 0 && (os->bfd_section->flags &
 0x002) == 0))
	&& ! link_info.relocatable
	&& check_regions
	&& strcmp (os->region->name,
		   DEFAULT_MEMORY_REGION"*default*") == 0
	&& lang_memory_region_list != NULL((void*)0)
	&& (strcmp (lang_memory_region_list->name,
		    DEFAULT_MEMORY_REGION"*default*") != 0
	    || lang_memory_region_list->next != NULL((void*)0))
	&& expld.phase != lang_mark_phase_enum)
      {
	/* By default this is an error rather than just a
	   warning because if we allocate the section to the
	   default memory region we can end up creating an
	   excessively large binary, or even seg faulting when
	   attempting to perform a negative seek.  See
	   sources.redhat.com/ml/binutils/2003-04/msg00423.html
	   for an example of this.  This behaviour can be
	   overridden by the using the --no-check-sections
	   switch.  */
	if (command_line.check_section_addresses)
	  einfo (_("%P%F: error: no memory region specified"("%P%F: error: no memory region specified" " for loadable section `%s'\n"
)
		   " for loadable section `%s'\n")("%P%F: error: no memory region specified" " for loadable section `%s'\n"
),
		 bfd_get_section_name (output_bfd,((os->bfd_section)->name + 0)
				       os->bfd_section)((os->bfd_section)->name + 0));
	else
	  einfo (_("%P: warning: no memory region specified"("%P: warning: no memory region specified" " for loadable section `%s'\n"
)
		   " for loadable section `%s'\n")("%P: warning: no memory region specified" " for loadable section `%s'\n"
),
		 bfd_get_section_name (output_bfd,((os->bfd_section)->name + 0)
				       os->bfd_section)((os->bfd_section)->name + 0));
      }

    newdot = os->region->current;
    align = os->bfd_section->alignment_power;
  }
else
  align = os->section_alignment;

/* Align to what the section needs.  */
if (align > 0)
  {
    bfd_vma savedot = newdot;
    newdot = align_power (newdot, align)(((newdot) + ((bfd_vma) 1 << (align)) - 1) & ((bfd_vma
) -1 << (align)));

    if (newdot != savedot
	&& (config.warn_section_align
	    || os->addr_tree != NULL((void*)0))
	&& expld.phase != lang_mark_phase_enum)
      einfo (_("%P: warning: changing start of section"("%P: warning: changing start of section" " %s by %lu bytes\n"
)
	       " %s by %lu bytes\n")("%P: warning: changing start of section" " %s by %lu bytes\n"
),
	     os->name, (unsigned long) (newdot - savedot));
  }

bfd_set_section_vma (0, os->bfd_section, newdot)(((os->bfd_section)->vma = (os->bfd_section)->lma
 = (newdot)), ((os->bfd_section)->user_set_vma = 1), 1);

os->bfd_section->output_offset = 0;
     }

   lang_size_sections_1 (os->children.head, os, &os->children.head,
		  os->fill, newdot, relax, check_regions);

   os->processed = TRUE1;

   if (bfd_is_abs_section (os->bfd_section)((os->bfd_section) == ((asection *) &bfd_abs_section)) || os->ignored)
     {
ASSERT (os->bfd_section->size == 0)do { if (!(os->bfd_section->size == 0)) info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,4278); } while (0);
break;
     }

   dot = os->bfd_section->vma;

   /* Put the section within the requested block size, or
      align at the block boundary.  */
   after = ((dot
      + TO_ADDR (os->bfd_section->size)((os->bfd_section->size) >> opb_shift)
      + os->block_value - 1)
     & - (bfd_vma) os->block_value);

   os->bfd_section->size = TO_SIZE (after - os->bfd_section->vma)((after - os->bfd_section->vma) << opb_shift);

   /* .tbss sections effectively have zero size.  */
   if ((os->bfd_section->flags & SEC_HAS_CONTENTS0x100) != 0
|| (os->bfd_section->flags & SEC_THREAD_LOCAL0x400) == 0
|| link_info.relocatable)
     dot += TO_ADDR (os->bfd_section->size)((os->bfd_section->size) >> opb_shift);

   if (os->update_dot_tree != 0)
     exp_fold_tree (os->update_dot_tree, bfd_abs_section_ptr((asection *) &bfd_abs_section), &dot);

   /* Update dot in the region ?
      We only do this if the section is going to be allocated,
      since unallocated sections do not contribute to the region's
      overall size in memory.

      If the SEC_NEVER_LOAD bit is not set, it will affect the
      addresses of sections after it. We have to update
      dot.  */
   if (os->region != NULL((void*)0)
&& ((os->bfd_section->flags & SEC_NEVER_LOAD0x200) == 0
    || (os->bfd_section->flags & (SEC_ALLOC0x001 | SEC_LOAD0x002))))
     {
os->region->current = dot;

if (check_regions)
  /* Make sure the new address is within the region.  */
  os_region_check (os, os->region, os->addr_tree,
		   os->bfd_section->vma);

/* If there's no load address specified, use the run
   region as the load region.  */
if (os->lma_region == NULL((void*)0) && os->load_base == NULL((void*)0))
  os->lma_region = os->region;

if (os->lma_region != NULL((void*)0) && os->lma_region != os->region)
  {
    /* Set load_base, which will be handled later.  */
    os->load_base = exp_intop (os->lma_region->current);
    os->lma_region->current +=
      TO_ADDR (os->bfd_section->size)((os->bfd_section->size) >> opb_shift);
    if (check_regions)
      os_region_check (os, os->lma_region, NULL((void*)0),
		       os->bfd_section->lma);
  }
     }
 }
 break;

case lang_constructors_statement_enum:
 dot = lang_size_sections_1 (constructor_list.head,
		      output_section_statement,
		      &s->wild_statement.children.head,
		      fill, dot, relax, check_regions);
 break;

case lang_data_statement_enum:
 {
   unsigned int size = 0;

   s->data_statement.output_offset =
     dot - output_section_statement->bfd_section->vma;
   s->data_statement.output_section =
     output_section_statement->bfd_section;

   /* We might refer to provided symbols in the expression, and
      need to mark them as needed.  */
   exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr((asection *) &bfd_abs_section), &dot);

   switch (s->data_statement.type)
     {
     default:
abort ()ld_abort ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c", 4363
, __PRETTY_FUNCTION__);
     case QUAD281:
     case SQUAD282:
size = QUAD_SIZE(8);
break;
     case LONG283:
size = LONG_SIZE(4);
break;
     case SHORT284:
size = SHORT_SIZE(2);
break;
     case BYTE285:
size = BYTE_SIZE(1);
break;
     }
   if (size < TO_SIZE ((unsigned) 1)(((unsigned) 1) << opb_shift))
     size = TO_SIZE ((unsigned) 1)(((unsigned) 1) << opb_shift);
   dot += TO_ADDR (size)((size) >> opb_shift);
   output_section_statement->bfd_section->size += size;
 }
 break;

case lang_reloc_statement_enum:
 {
   int size;

   s->reloc_statement.output_offset =
     dot - output_section_statement->bfd_section->vma;
   s->reloc_statement.output_section =
     output_section_statement->bfd_section;
   size = bfd_get_reloc_size (s->reloc_statement.howto);
   dot += TO_ADDR (size)((size) >> opb_shift);
   output_section_statement->bfd_section->size += size;
 }
 break;

case lang_wild_statement_enum:
 dot = lang_size_sections_1 (s->wild_statement.children.head,
		      output_section_statement,
		      &s->wild_statement.children.head,
		      fill, dot, relax, check_regions);
 break;

case lang_object_symbols_statement_enum:
 link_info.create_object_symbols_section =
   output_section_statement->bfd_section;
 break;

case lang_output_statement_enum:
case lang_target_statement_enum:
 break;

case lang_input_section_enum:
 {
   asection *i;

   i = (*prev)->input_section.section;
   if (relax)
     {
bfd_boolean again;

if (! bfd_relax_section (i->owner, i, &link_info, &again)((*((i->owner)->xvec->_bfd_relax_section)) (i->owner
, i, &link_info, &again)))
  einfo (_("%P%F: can't relax section: %E\n")("%P%F: can't relax section: %E\n"));
if (again)
  *relax = TRUE1;
     }
   dot = size_input_section (prev, output_section_statement,
		      output_section_statement->fill, dot);
 }
 break;

case lang_input_statement_enum:
 break;

case lang_fill_statement_enum:
 s->fill_statement.output_section =
   output_section_statement->bfd_section;

 fill = s->fill_statement.fill;
 break;

case lang_assignment_statement_enum:
 {
   bfd_vma newdot = dot;

   exp_fold_tree (s->assignment_statement.exp,
	   output_section_statement->bfd_section,
	   &newdot);

   if (newdot != dot && !output_section_statement->ignored)
     {
if (output_section_statement == abs_output_section)
  {
    /* If we don't have an output section, then just adjust
       the default memory address.  */
    lang_memory_region_lookup (DEFAULT_MEMORY_REGION"*default*",
			       FALSE0)->current = newdot;
  }
else
  {
    /* Insert a pad after this statement.  We can't
       put the pad before when relaxing, in case the
       assignment references dot.  */
    insert_pad (&s->header.next, fill, TO_SIZE (newdot - dot)((newdot - dot) << opb_shift),
		output_section_statement->bfd_section, dot);

    /* Don't neuter the pad below when relaxing.  */
    s = s->header.next;

    /* If dot is advanced, this implies that the section
       should have space allocated to it, unless the
       user has explicitly stated that the section
       should never be loaded.  */
    if (!(output_section_statement->flags
	  & (SEC_NEVER_LOAD0x200 | SEC_ALLOC0x001)))
      output_section_statement->bfd_section->flags |= SEC_ALLOC0x001;
  }
dot = newdot;
     }
 }
 break;

case lang_padding_statement_enum:
 /* If this is the first time lang_size_sections is called,
    we won't have any padding statements.  If this is the
    second or later passes when relaxing, we should allow
    padding to shrink.  If padding is needed on this pass, it
    will be added back in.  */
 s->padding_statement.size = 0;

 /* Make sure output_offset is valid.  If relaxation shrinks
    the section and this pad isn't needed, it's possible to
    have output_offset larger than the final size of the
    section.  bfd_set_section_contents will complain even for
    a pad size of zero.  */
 s->padding_statement.output_offset
   = dot - output_section_statement->bfd_section->vma;
 break;

case lang_group_statement_enum:
 dot = lang_size_sections_1 (s->group_statement.children.head,
		      output_section_statement,
		      &s->group_statement.children.head,
		      fill, dot, relax, check_regions);
 break;

default:
 FAIL ()do { info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,4510); } while (0);
 break;

 /* We can only get here when relaxing is turned on.  */
case lang_address_statement_enum:
 break;
}
    prev = &s->header.next;
  }
return dot;
4520}

4522void
4523one_lang_size_sections_pass (bfd_boolean *relax, bfd_boolean check_regions)
4524{
lang_statement_iteration++;
lang_size_sections_1 (statement_list.head, abs_output_section,
	&statement_list.head, 0, 0, relax, check_regions);
4528}

4530void
4531lang_size_sections (bfd_boolean *relax, bfd_boolean check_regions)
4532{
expld.phase = lang_allocating_phase_enum;
expld.dataseg.phase = exp_dataseg_none;

one_lang_size_sections_pass (relax, check_regions);
if (expld.dataseg.phase == exp_dataseg_end_seen
    && link_info.relro && expld.dataseg.relro_end)
  {
    /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_RELRO_END pair was seen, try
to put expld.dataseg.relro on a (common) page boundary.  */
    bfd_vma old_min_base, relro_end, maxpage;

    expld.dataseg.phase = exp_dataseg_relro_adjust;
    old_min_base = expld.dataseg.min_base;
    maxpage = expld.dataseg.maxpagesize;
    expld.dataseg.base += (-expld.dataseg.relro_end
	     & (expld.dataseg.pagesize - 1));
    /* Compute the expected PT_GNU_RELRO segment end.  */
    relro_end = (expld.dataseg.relro_end + expld.dataseg.pagesize - 1)
  & ~(expld.dataseg.pagesize - 1);
    if (old_min_base + maxpage < expld.dataseg.base)
{
 expld.dataseg.base -= maxpage;
 relro_end -= maxpage;
}
    one_lang_size_sections_pass (relax, check_regions);
    if (expld.dataseg.relro_end > relro_end)
{
 /* The alignment of sections between DATA_SEGMENT_ALIGN
    and DATA_SEGMENT_RELRO_END caused huge padding to be
    inserted at DATA_SEGMENT_RELRO_END.  Try some other base.  */
 asection *sec;
 unsigned int max_alignment_power = 0;

 /* Find maximum alignment power of sections between
    DATA_SEGMENT_ALIGN and DATA_SEGMENT_RELRO_END.  */
 for (sec = output_bfd->sections; sec; sec = sec->next)
   if (sec->vma >= expld.dataseg.base
&& sec->vma < expld.dataseg.relro_end
&& sec->alignment_power > max_alignment_power)
     max_alignment_power = sec->alignment_power;

 if (((bfd_vma) 1 << max_alignment_power) < expld.dataseg.pagesize)
   {
     if (expld.dataseg.base - (1 << max_alignment_power)
  < old_min_base)
expld.dataseg.base += expld.dataseg.pagesize;
     expld.dataseg.base -= (1 << max_alignment_power);
     one_lang_size_sections_pass (relax, check_regions);
   }
}
    link_info.relro_start = expld.dataseg.base;
    link_info.relro_end = expld.dataseg.relro_end;
  }
else if (expld.dataseg.phase == exp_dataseg_end_seen)
  {
    /* If DATA_SEGMENT_ALIGN DATA_SEGMENT_END pair was seen, check whether
a page could be saved in the data segment.  */
    bfd_vma first, last;

    first = -expld.dataseg.base & (expld.dataseg.pagesize - 1);
    last = expld.dataseg.end & (expld.dataseg.pagesize - 1);
    if (first && last
 && ((expld.dataseg.base & ~(expld.dataseg.pagesize - 1))
     != (expld.dataseg.end & ~(expld.dataseg.pagesize - 1)))
 && first + last <= expld.dataseg.pagesize)
{
 expld.dataseg.phase = exp_dataseg_adjust;
 one_lang_size_sections_pass (relax, check_regions);
}
  }

expld.phase = lang_final_phase_enum;
4605}

4607/* Worker function for lang_do_assignments.  Recursiveness goes here.  */

4609static bfd_vma
4610lang_do_assignments_1
(lang_statement_union_type *s,
 lang_output_section_statement_type *output_section_statement,
 fill_type *fill,
 bfd_vma dot)
4615{
for (; s != NULL((void*)0); s = s->header.next)
  {
    switch (s->header.type)
{
case lang_constructors_statement_enum:
 dot = lang_do_assignments_1 (constructor_list.head,
		       output_section_statement,
		       fill,
		       dot);
 break;

case lang_output_section_statement_enum:
 {
   lang_output_section_statement_type *os;

   os = &(s->output_section_statement);
   if (os->bfd_section != NULL((void*)0) && !os->ignored)
     {
dot = os->bfd_section->vma;
lang_do_assignments_1 (os->children.head, os, os->fill, dot);
/* .tbss sections effectively have zero size.  */
if ((os->bfd_section->flags & SEC_HAS_CONTENTS0x100) != 0
    || (os->bfd_section->flags & SEC_THREAD_LOCAL0x400) == 0
    || link_info.relocatable)
  dot += TO_ADDR (os->bfd_section->size)((os->bfd_section->size) >> opb_shift);
     }
   if (os->load_base)
     {
/* If nothing has been placed into the output section then
   it won't have a bfd_section.  */
if (os->bfd_section && !os->ignored)
  {
    os->bfd_section->lma
      = exp_get_abs_int (os->load_base, 0, "load base");
  }
     }
 }
 break;

case lang_wild_statement_enum:

 dot = lang_do_assignments_1 (s->wild_statement.children.head,
		       output_section_statement,
		       fill, dot);
 break;

case lang_object_symbols_statement_enum:
case lang_output_statement_enum:
case lang_target_statement_enum:
 break;

case lang_data_statement_enum:
 exp_fold_tree (s->data_statement.exp, bfd_abs_section_ptr((asection *) &bfd_abs_section), &dot);
 if (expld.result.valid_p)
   s->data_statement.value = (expld.result.value
		       + expld.result.section->vma);
 else
   einfo (_("%F%P: invalid data statement\n")("%F%P: invalid data statement\n"));
 {
   unsigned int size;
   switch (s->data_statement.type)
     {
     default:
abort ()ld_abort ("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c", 4679
, __PRETTY_FUNCTION__);
     case QUAD281:
     case SQUAD282:
size = QUAD_SIZE(8);
break;
     case LONG283:
size = LONG_SIZE(4);
break;
     case SHORT284:
size = SHORT_SIZE(2);
break;
     case BYTE285:
size = BYTE_SIZE(1);
break;
     }
   if (size < TO_SIZE ((unsigned) 1)(((unsigned) 1) << opb_shift))
     size = TO_SIZE ((unsigned) 1)(((unsigned) 1) << opb_shift);
   dot += TO_ADDR (size)((size) >> opb_shift);
 }
 break;

case lang_reloc_statement_enum:
 exp_fold_tree (s->reloc_statement.addend_exp,
	 bfd_abs_section_ptr((asection *) &bfd_abs_section), &dot);
 if (expld.result.valid_p)
   s->reloc_statement.addend_value = expld.result.value;
 else
   einfo (_("%F%P: invalid reloc statement\n")("%F%P: invalid reloc statement\n"));
 dot += TO_ADDR (bfd_get_reloc_size (s->reloc_statement.howto))((bfd_get_reloc_size (s->reloc_statement.howto)) >> opb_shift
);
 break;

case lang_input_section_enum:
 {
   asection *in = s->input_section.section;

   if ((in->flags & SEC_EXCLUDE0x8000) == 0)
     dot += TO_ADDR (in->size)((in->size) >> opb_shift);
 }
 break;

case lang_input_statement_enum:
 break;

case lang_fill_statement_enum:
 fill = s->fill_statement.fill;
 break;

case lang_assignment_statement_enum:
 exp_fold_tree (s->assignment_statement.exp,
	 output_section_statement->bfd_section,
	 &dot);
 break;

case lang_padding_statement_enum:
 dot += TO_ADDR (s->padding_statement.size)((s->padding_statement.size) >> opb_shift);
 break;

case lang_group_statement_enum:
 dot = lang_do_assignments_1 (s->group_statement.children.head,
		       output_section_statement,
		       fill, dot);
 break;

default:
 FAIL ()do { info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,4743); } while (0);
 break;

case lang_address_statement_enum:
 break;
}
  }
return dot;
4751}

4753void
4754lang_do_assignments (void)
4755{
lang_statement_iteration++;
lang_do_assignments_1 (statement_list.head, abs_output_section, NULL((void*)0), 0);
4758}

4760/* Fix any .startof. or .sizeof. symbols.  When the assemblers see the
 operator .startof. (section_name), it produces an undefined symbol
 .startof.section_name.  Similarly, when it sees
 .sizeof. (section_name), it produces an undefined symbol
 .sizeof.section_name.  For all the output sections, we look for
 such symbols, and set them to the correct value.  */

4767static void
4768lang_set_startof (void)
4769{
asection *s;

if (link_info.relocatable)
  return;

for (s = output_bfd->sections; s != NULL((void*)0); s = s->next)
  {
    const char *secname;
    char *buf;
    struct bfd_link_hash_entry *h;

    secname = bfd_get_section_name (output_bfd, s)((s)->name + 0);
    buf = xmalloc (10 + strlen (secname));

    sprintf (buf, ".startof.%s", secname);
    h = bfd_link_hash_lookup (link_info.hash, buf, FALSE0, FALSE0, TRUE1);
    if (h != NULL((void*)0) && h->type == bfd_link_hash_undefined)
{
 h->type = bfd_link_hash_defined;
 h->u.def.value = bfd_get_section_vma (output_bfd, s)((s)->vma + 0);
 h->u.def.section = bfd_abs_section_ptr((asection *) &bfd_abs_section);
}

    sprintf (buf, ".sizeof.%s", secname);
    h = bfd_link_hash_lookup (link_info.hash, buf, FALSE0, FALSE0, TRUE1);
    if (h != NULL((void*)0) && h->type == bfd_link_hash_undefined)
{
 h->type = bfd_link_hash_defined;
 h->u.def.value = TO_ADDR (s->size)((s->size) >> opb_shift);
 h->u.def.section = bfd_abs_section_ptr((asection *) &bfd_abs_section);
}

    free (buf);
  }
4804}

4806static void
4807lang_end (void)
4808{
struct bfd_link_hash_entry *h;
bfd_boolean warn;

if (link_info.relocatable || link_info.shared)
  warn = FALSE0;
else
  warn = TRUE1;

if (entry_symbol.name == NULL((void*)0))
  {
    /* No entry has been specified.  Look for the default entry, but
don't warn if we don't find it.  */
    entry_symbol.name = entry_symbol_default;
    warn = FALSE0;
  }

h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name,
	    FALSE0, FALSE0, TRUE1);
if (h != NULL((void*)0)
    && (h->type == bfd_link_hash_defined
 || h->type == bfd_link_hash_defweak)
    && h->u.def.section->output_section != NULL((void*)0))
  {
    bfd_vma val;

    val = (h->u.def.value
    + bfd_get_section_vma (output_bfd,((h->u.def.section->output_section)->vma + 0)
		    h->u.def.section->output_section)((h->u.def.section->output_section)->vma + 0)
    + h->u.def.section->output_offset);
    if (! bfd_set_start_address (output_bfd, val))
einfo (_("%P%F:%s: can't set start address\n")("%P%F:%s: can't set start address\n"), entry_symbol.name);
  }
else
  {
    bfd_vma val;
    const char *send;

    /* We couldn't find the entry symbol.  Try parsing it as a
number.  */
    val = bfd_scan_vma (entry_symbol.name, &send, 0);
    if (*send == '\0')
{
 if (! bfd_set_start_address (output_bfd, val))
   einfo (_("%P%F: can't set start address\n")("%P%F: can't set start address\n"));
}
    else
{
 asection *ts;

 /* Can't find the entry symbol, and it's not a number.  Use
    the first address in the text section.  */
 ts = bfd_get_section_by_name (output_bfd, entry_section);
 if (ts != NULL((void*)0))
   {
     if (warn)
einfo (_("%P: warning: cannot find entry symbol %s;"("%P: warning: cannot find entry symbol %s;" " defaulting to %V\n"
)
	 " defaulting to %V\n")("%P: warning: cannot find entry symbol %s;" " defaulting to %V\n"
),
       entry_symbol.name,
       bfd_get_section_vma (output_bfd, ts)((ts)->vma + 0));
     if (! bfd_set_start_address (output_bfd,
			   bfd_get_section_vma (output_bfd,((ts)->vma + 0)
						ts)((ts)->vma + 0)))
einfo (_("%P%F: can't set start address\n")("%P%F: can't set start address\n"));
   }
 else
   {
     if (warn)
einfo (_("%P: warning: cannot find entry symbol %s;"("%P: warning: cannot find entry symbol %s;" " not setting start address\n"
)
	 " not setting start address\n")("%P: warning: cannot find entry symbol %s;" " not setting start address\n"
),
       entry_symbol.name);
   }
}
  }

/* Don't bfd_hash_table_free (&lang_definedness_table);
   map file output may result in a call of lang_track_definedness.  */
4885}

4887/* This is a small function used when we want to ignore errors from
 BFD.  */

4890static void
4891ignore_bfd_errors (const char *s ATTRIBUTE_UNUSED__attribute__ ((__unused__)), ...)
4892{
/* Don't do anything.  */
4894}

4896/* Check that the architecture of all the input files is compatible
 with the output file.  Also call the backend to let it do any
 other checking that is needed.  */

4900static void
4901lang_check (void)
4902{
lang_statement_union_type *file;
bfd *input_bfd;
const bfd_arch_info_type *compatible;

for (file = file_chain.head; file != NULL((void*)0); file = file->input_statement.next)
  {
    input_bfd = file->input_statement.the_bfd;
    compatible
= bfd_arch_get_compatible (input_bfd, output_bfd,
		   command_line.accept_unknown_input_arch);

    /* In general it is not possible to perform a relocatable
link between differing object formats when the input
file has relocations, because the relocations in the
input format may not have equivalent representations in
the output format (and besides BFD does not translate
relocs for other link purposes than a final link).  */
    if ((link_info.relocatable || link_info.emitrelocations)
 && (compatible == NULL((void*)0)
     || bfd_get_flavour (input_bfd)((input_bfd)->xvec->flavour) != bfd_get_flavour (output_bfd)((output_bfd)->xvec->flavour))
 && (bfd_get_file_flags (input_bfd)((input_bfd)->flags) & HAS_RELOC0x01) != 0)
{
 einfo (_("%P%F: Relocatable linking with relocations from"("%P%F: Relocatable linking with relocations from" " format %s (%B) to format %s (%B) is not supported\n"
)
   " format %s (%B) to format %s (%B) is not supported\n")("%P%F: Relocatable linking with relocations from" " format %s (%B) to format %s (%B) is not supported\n"
),
 bfd_get_target (input_bfd)((input_bfd)->xvec->name), input_bfd,
 bfd_get_target (output_bfd)((output_bfd)->xvec->name), output_bfd);
 /* einfo with %F exits.  */
}

    if (compatible == NULL((void*)0))
{
 if (command_line.warn_mismatch)
   einfo (_("%P: warning: %s architecture of input file `%B'"("%P: warning: %s architecture of input file `%B'" " is incompatible with %s output\n"
)
     " is incompatible with %s output\n")("%P: warning: %s architecture of input file `%B'" " is incompatible with %s output\n"
),
   bfd_printable_name (input_bfd), input_bfd,
   bfd_printable_name (output_bfd));
}
    else if (bfd_count_sections (input_bfd)((input_bfd)->section_count))
{
 /* If the input bfd has no contents, it shouldn't set the
    private data of the output bfd.  */

 bfd_error_handler_type pfn = NULL((void*)0);

 /* If we aren't supposed to warn about mismatched input
    files, temporarily set the BFD error handler to a
    function which will do nothing.  We still want to call
    bfd_merge_private_bfd_data, since it may set up
    information which is needed in the output file.  */
 if (! command_line.warn_mismatch)
   pfn = bfd_set_error_handler (ignore_bfd_errors);
 if (! bfd_merge_private_bfd_data (input_bfd, output_bfd)((*((output_bfd)->xvec->_bfd_merge_private_bfd_data)) (
input_bfd, output_bfd)))
   {
     if (command_line.warn_mismatch)
einfo (_("%P%X: failed to merge target specific data"("%P%X: failed to merge target specific data" " of file %B\n"
)
	 " of file %B\n")("%P%X: failed to merge target specific data" " of file %B\n"
), input_bfd);
   }
 if (! command_line.warn_mismatch)
   bfd_set_error_handler (pfn);
}
  }
4964}

4966/* Look through all the global common symbols and attach them to the
 correct section.  The -sort-common command line switch may be used
 to roughly sort the entries by size.  */

4970static void
4971lang_common (void)
4972{
if (command_line.inhibit_common_definition)
  return;
if (link_info.relocatable
    && ! command_line.force_common_definition)
  return;

if (! config.sort_common)
  bfd_link_hash_traverse (link_info.hash, lang_one_common, NULL((void*)0));
else
  {
    int power;

    for (power = 4; power >= 0; power--)
bfd_link_hash_traverse (link_info.hash, lang_one_common, &power);
  }
4988}

4990/* Place one common symbol in the correct section.  */

4992static bfd_boolean
4993lang_one_common (struct bfd_link_hash_entry *h, void *info)
4994{
unsigned int power_of_two;
bfd_vma size;
asection *section;

if (h->type != bfd_link_hash_common)
  return TRUE1;

size = h->u.c.size;
power_of_two = h->u.c.p->alignment_power;

if (config.sort_common
    && power_of_two < (unsigned int) *(int *) info)
  return TRUE1;

section = h->u.c.p->section;

/* Increase the size of the section to align the common sym.  */
section->size += ((bfd_vma) 1 << (power_of_two + opb_shift)) - 1;
section->size &= (- (bfd_vma) 1 << (power_of_two + opb_shift));

/* Adjust the alignment if necessary.  */
if (power_of_two > section->alignment_power)
  section->alignment_power = power_of_two;

/* Change the symbol from common to defined.  */
h->type = bfd_link_hash_defined;
h->u.def.section = section;
h->u.def.value = section->size;

/* Increase the size of the section.  */
section->size += size;

/* Make sure the section is allocated in memory, and make sure that
   it is no longer a common section.  */
section->flags |= SEC_ALLOC0x001;
section->flags &= ~SEC_IS_COMMON0x1000;

if (config.map_file != NULL((void*)0))
  {
    static bfd_boolean header_printed;
    int len;
    char *name;
    char buf[50];

    if (! header_printed)
{
 minfo (_("\nAllocating common symbols\n")("\nAllocating common symbols\n"));
 minfo (_("Common symbol       size              file\n\n")("Common symbol       size              file\n\n"));
 header_printed = TRUE1;
}

    name = demangle (h->root.string);
    minfo ("%s", name);
    len = strlen (name);
    free (name);

    if (len >= 19)
{
 print_nl ();
 len = 0;
}
    while (len < 20)
{
 print_space ();
 ++len;
}

    minfo ("0x");
    if (size <= 0xffffffff)
sprintf (buf, "%lx", (unsigned long) size);
    else
sprintf_vma (buf, size)sprintf (buf, "%016lx", size);
    minfo ("%s", buf);
    len = strlen (buf);

    while (len < 16)
{
 print_space ();
 ++len;
}

    minfo ("%B\n", section->owner);
  }

return TRUE1;
5080}

5082/* Run through the input files and ensure that every input section has
 somewhere to go.  If one is found without a destination then create
 an input request and place it into the statement tree.  */

5086static void
5087lang_place_orphans (void)
5088{
LANG_FOR_EACH_INPUT_STATEMENT (file)lang_input_statement_type *file; for (file = (lang_input_statement_type
 *) file_chain.head; file != (lang_input_statement_type *) ((
void*)0); file = (lang_input_statement_type *) file->next)
  {
    asection *s;

    for (s = file->the_bfd->sections; s != NULL((void*)0); s = s->next)
{
 if (s->output_section == NULL((void*)0))
   {
     /* This section of the file is not attached, root
 around for a sensible place for it to go.  */

     if (file->just_syms_flag)
bfd_link_just_syms (file->the_bfd, s, &link_info)((*((file->the_bfd)->xvec->_bfd_link_just_syms)) (s,
 &link_info));
     else if ((s->flags & SEC_EXCLUDE0x8000) != 0)
s->output_section = bfd_abs_section_ptr((asection *) &bfd_abs_section);
     else if (strcmp (s->name, "COMMON") == 0)
{
  /* This is a lonely common section which must have
     come from an archive.  We attach to the section
     with the wildcard.  */
  if (! link_info.relocatable
      || command_line.force_common_definition)
    {
      if (default_common_section == NULL((void*)0))
	{
	  default_common_section =
	    lang_output_section_statement_lookup (".bss");

	}
      lang_add_section (&default_common_section->children, s,
			default_common_section);
    }
}
     else if (ldemul_place_orphan (s))
;
     else
{
  lang_output_section_statement_type *os;

  os = lang_output_section_statement_lookup (s->name);
  lang_add_section (&os->children, s, os);
}
   }
}
  }
5134}

5136void
5137lang_set_flags (lang_memory_region_type *ptr, const char *flags, int invert)
5138{
flagword *ptr_flags;

ptr_flags = invert ? &ptr->not_flags : &ptr->flags;
while (*flags)
  {
    switch (*flags)
{
case 'A': case 'a':
 *ptr_flags |= SEC_ALLOC0x001;
 break;

case 'R': case 'r':
 *ptr_flags |= SEC_READONLY0x008;
 break;

case 'W': case 'w':
 *ptr_flags |= SEC_DATA0x020;
 break;

case 'X': case 'x':
 *ptr_flags |= SEC_CODE0x010;
 break;

case 'L': case 'l':
case 'I': case 'i':
 *ptr_flags |= SEC_LOAD0x002;
 break;

default:
 einfo (_("%P%F: invalid syntax in flags\n")("%P%F: invalid syntax in flags\n"));
 break;
}
    flags++;
  }
5173}

5175/* Call a function on each input file.  This function will be called
 on an archive, but not on the elements.  */

5178void
5179lang_for_each_input_file (void (*func) (lang_input_statement_type *))
5180{
lang_input_statement_type *f;

for (f = (lang_input_statement_type *) input_file_chain.head;
     f != NULL((void*)0);
     f = (lang_input_statement_type *) f->next_real_file)
  func (f);
5187}

5189/* Call a function on each file.  The function will be called on all
 the elements of an archive which are included in the link, but will
 not be called on the archive file itself.  */

5193void
5194lang_for_each_file (void (*func) (lang_input_statement_type *))
5195{
LANG_FOR_EACH_INPUT_STATEMENT (f)lang_input_statement_type *f; for (f = (lang_input_statement_type
 *) file_chain.head; f != (lang_input_statement_type *) ((void
*)0); f = (lang_input_statement_type *) f->next)
  {
    func (f);
  }
5200}

5202void
5203ldlang_add_file (lang_input_statement_type *entry)
5204{
bfd **pp;

lang_statement_append (&file_chain,
	 (lang_statement_union_type *) entry,
	 &entry->next);

/* The BFD linker needs to have a list of all input BFDs involved in
   a link.  */
ASSERT (entry->the_bfd->link_next == NULL)do { if (!(entry->the_bfd->link_next == ((void*)0))) info_assert
("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c",5213); } while
 (0);
ASSERT (entry->the_bfd != output_bfd)do { if (!(entry->the_bfd != output_bfd)) info_assert("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c"
,5214); } while (0);
for (pp = &link_info.input_bfds; *pp != NULL((void*)0); pp = &(*pp)->link_next)
  ;
*pp = entry->the_bfd;
entry->the_bfd->usrdata = entry;
bfd_set_gp_size (entry->the_bfd, g_switch_value);

/* Look through the sections and check for any which should not be
   included in the link.  We need to do this now, so that we can
   notice when the backend linker tries to report multiple
   definition errors for symbols which are in sections we aren't
   going to link.  FIXME: It might be better to entirely ignore
   symbols which are defined in sections which are going to be
   discarded.  This would require modifying the backend linker for
   each backend which might set the SEC_LINK_ONCE flag.  If we do
   this, we should probably handle SEC_EXCLUDE in the same way.  */

bfd_map_over_sections (entry->the_bfd, section_already_linked, entry);
5232}

5234void
5235lang_add_output (const char *name, int from_script)
5236{
/* Make -o on command line override OUTPUT in script.  */
if (!had_output_filename || !from_script)
  {
    output_filename = name;
    had_output_filename = TRUE1;
  }
5243}

5245static lang_output_section_statement_type *current_section;

5247static int
5248topower (int x)
5249{
unsigned int i = 1;
int l;

if (x < 0)
  return -1;

for (l = 0; l < 32; l++)
  {
    if (i >= (unsigned int) x)
return l;
    i <<= 1;
  }

return 0;
5264}

5266lang_output_section_statement_type *
5267lang_enter_output_section_statement (const char *output_section_statement_name,
		     etree_type *address_exp,
		     enum section_type sectype,
		     etree_type *align,
		     etree_type *subalign,
		     etree_type *ebase,
		     int constraint)
5274{
lang_output_section_statement_type *os;

 os = lang_output_section_statement_lookup_1 (output_section_statement_name,
				constraint);
 current_section = os;

/* Make next things chain into subchain of this.  */

if (os->addr_tree == NULL((void*)0))
  {
    os->addr_tree = address_exp;
  }
os->sectype = sectype;
if (sectype != noload_section)
  os->flags = SEC_NO_FLAGS0x000;
else
  os->flags = SEC_NEVER_LOAD0x200;
os->block_value = 1;
stat_ptr = &os->children;

os->subsection_alignment =
  topower (exp_get_value_int (subalign, -1, "subsection alignment"));
os->section_alignment =
  topower (exp_get_value_int (align, -1, "section alignment"));

os->load_base = ebase;
return os;
5302}

5304void
5305lang_final (void)
5306{
lang_output_statement_type *new;

new = new_stat (lang_output_statement, stat_ptr)(lang_output_statement_type *) new_statement (lang_output_statement_enum
, sizeof (lang_output_statement_type), stat_ptr);
new->name = output_filename;
5311}

5313/* Reset the current counters in the regions.  */

5315void
5316lang_reset_memory_regions (void)
5317{
lang_memory_region_type *p = lang_memory_region_list;
asection *o;
lang_output_section_statement_type *os;

for (p = lang_memory_region_list; p != NULL((void*)0); p = p->next)
  {
    p->old_length = (bfd_size_type) (p->current - p->origin);
    p->current = p->origin;
  }

for (os = &lang_output_section_statement.head->output_section_statement;
     os != NULL((void*)0);
     os = os->next)
  os->processed = FALSE0;

for (o = output_bfd->sections; o != NULL((void*)0); o = o->next)
  {
    /* Save the last size for possible use by bfd_relax_section.  */
    o->rawsize = o->size;
    o->size = 0;
  }
5339}

5341/* Worker for lang_gc_sections_1.  */

5343static void
5344gc_section_callback (lang_wild_statement_type *ptr,
     struct wildcard_list *sec ATTRIBUTE_UNUSED__attribute__ ((__unused__)),
     asection *section,
     lang_input_statement_type *file ATTRIBUTE_UNUSED__attribute__ ((__unused__)),
     void *data ATTRIBUTE_UNUSED__attribute__ ((__unused__)))
5349{
/* If the wild pattern was marked KEEP, the member sections
   should be as well.  */
if (ptr->keep_sections)
  section->flags |= SEC_KEEP0x400000;
5354}

5356/* Iterate over sections marking them against GC.  */

5358static void
5359lang_gc_sections_1 (lang_statement_union_type *s)
5360{
for (; s != NULL((void*)0); s = s->header.next)
  {
    switch (s->header.type)
{
case lang_wild_statement_enum:
 walk_wild (&s->wild_statement, gc_section_callback, NULL((void*)0));
 break;
case lang_constructors_statement_enum:
 lang_gc_sections_1 (constructor_list.head);
 break;
case lang_output_section_statement_enum:
 lang_gc_sections_1 (s->output_section_statement.children.head);
 break;
case lang_group_statement_enum:
 lang_gc_sections_1 (s->group_statement.children.head);
 break;
default:
 break;
}
  }
5381}

5383static void
5384lang_gc_sections (void)
5385{
struct bfd_link_hash_entry *h;
ldlang_undef_chain_list_type *ulist;

/* Keep all sections so marked in the link script.  */

lang_gc_sections_1 (statement_list.head);

/* Keep all sections containing symbols undefined on the command-line,
   and the section containing the entry symbol.  */

for (ulist = link_info.gc_sym_list; ulist; ulist = ulist->next)
  {
    h = bfd_link_hash_lookup (link_info.hash, ulist->name,
		FALSE0, FALSE0, FALSE0);

    if (h != NULL((void*)0)
 && (h->type == bfd_link_hash_defined
     || h->type == bfd_link_hash_defweak)
 && ! bfd_is_abs_section (h->u.def.section)((h->u.def.section) == ((asection *) &bfd_abs_section)
))
{
 h->u.def.section->flags |= SEC_KEEP0x400000;
}
  }

/* SEC_EXCLUDE is ignored when doing a relocatable link, except in
   the special case of debug info.  (See bfd/stabs.c)
   Twiddle the flag here, to simplify later linker code.  */
if (link_info.relocatable)
  {
    LANG_FOR_EACH_INPUT_STATEMENT (f)lang_input_statement_type *f; for (f = (lang_input_statement_type
 *) file_chain.head; f != (lang_input_statement_type *) ((void
*)0); f = (lang_input_statement_type *) f->next)
{
 asection *sec;
 for (sec = f->the_bfd->sections; sec != NULL((void*)0); sec = sec->next)
   if ((sec->flags & SEC_DEBUGGING0x2000) == 0)
     sec->flags &= ~SEC_EXCLUDE0x8000;
}
  }

if (link_info.gc_sections)
  bfd_gc_sections (output_bfd, &link_info)((*((output_bfd)->xvec->_bfd_gc_sections)) (output_bfd,
 &link_info));
5426}

5428/* Relax all sections until bfd_relax_section gives up.  */

5430static void
5431relax_sections (void)
5432{
/* Keep relaxing until bfd_relax_section gives up.  */
bfd_boolean relax_again;

do
  {
    relax_again = FALSE0; 

    /* Note: pe-dll.c does something like this also.  If you find
you need to change this code, you probably need to change
pe-dll.c also.  DJ  */

    /* Do all the assignments with our current guesses as to
section sizes.  */
    lang_do_assignments ();

    /* We must do this after lang_do_assignments, because it uses
size.  */
    lang_reset_memory_regions ();

    /* Perform another relax pass - this time we know where the
globals are, so can make a better guess.  */
    lang_size_sections (&relax_again, FALSE0);
  }
while (relax_again);
5457}

5459void
5460lang_process (void)
5461{
current_target = default_target;

/* Open the output file.  */
lang_for_each_statement (ldlang_open_output);
init_opb ();

ldemul_create_output_section_statements ();

/* Add to the hash table all undefineds on the command line.  */
lang_place_undefineds ();

if (!bfd_section_already_linked_table_init ())
  einfo (_("%P%F: Failed to create hash table\n")("%P%F: Failed to create hash table\n"));

/* Create a bfd for each input file.  */
current_target = default_target;
open_input_bfds (statement_list.head, FALSE0);

link_info.gc_sym_list = &entry_symbol;
if (entry_symbol.name == NULL((void*)0))
  link_info.gc_sym_list = ldlang_undef_chain_list_headentry_symbol.next;

ldemul_after_open ();

bfd_section_already_linked_table_free ();

/* Make sure that we're not mixing architectures.  We call this
   after all the input files have been opened, but before we do any
   other processing, so that any operations merge_private_bfd_data
   does on the output file will be known during the rest of the
   link.  */
lang_check ();

/* Handle .exports instead of a version script if we're told to do so.  */
if (command_line.version_exports_section)
  lang_do_version_exports_section ();

/* Build all sets based on the information gathered from the input
   files.  */
ldctor_build_sets ();

/* Remove unreferenced sections if asked to.  */
lang_gc_sections ();

/* Size up the common data.  */
lang_common ();

/* Update wild statements.  */
update_wild_statements (statement_list.head);

/* Run through the contours of the script and attach input sections
   to the correct output sections.  */
map_input_to_output_sections (statement_list.head, NULL((void*)0), NULL((void*)0));

/* Find any sections not attached explicitly and handle them.  */
lang_place_orphans ();

if (! link_info.relocatable)
  {
    asection *found;

    /* Merge SEC_MERGE sections.  This has to be done after GC of
sections, so that GCed sections are not merged, but before
assigning dynamic symbols, since removing whole input sections
is hard then.  */
    bfd_merge_sections (output_bfd, &link_info)((*((output_bfd)->xvec->_bfd_merge_sections)) (output_bfd
, &link_info));

    /* Look for a text section and set the readonly attribute in it.  */
    found = bfd_get_section_by_name (output_bfd, ".text");

    if (found != NULL((void*)0))
{
 if (config.text_read_only)
   found->flags |= SEC_READONLY0x008;
 else
   found->flags &= ~SEC_READONLY0x008;
}
  }

/* Do anything special before sizing sections.  This is where ELF
   and other back-ends size dynamic sections.  */
ldemul_before_allocation ();

/* We must record the program headers before we try to fix the
   section positions, since they will affect SIZEOF_HEADERS.  */
lang_record_phdrs ();

/* Size up the sections.  */
lang_size_sections (NULL((void*)0), !command_line.relax);

/* Now run around and relax if we can.  */
if (command_line.relax)
  {
    /* We may need more than one relaxation pass.  */
    int i = link_info.relax_pass;

    /* The backend can use it to determine the current pass.  */
    link_info.relax_pass = 0;

    while (i--)
{
 relax_sections ();
 link_info.relax_pass++;
}

    /* Final extra sizing to report errors.  */
    lang_do_assignments ();
    lang_reset_memory_regions ();
    lang_size_sections (NULL((void*)0), TRUE1);
  }

/* See if anything special should be done now we know how big
   everything is.  */
ldemul_after_allocation ();

/* Fix any .startof. or .sizeof. symbols.  */
lang_set_startof ();

/* Do all the assignments, now that we know the final resting places
   of all the symbols.  */

lang_do_assignments ();

/* Make sure that the section addresses make sense.  */
if (! link_info.relocatable
    && command_line.check_section_addresses)
  lang_check_section_addresses ();

/* Final stuffs.  */
ldemul_finish ();
lang_end ();
5593}

5595/* EXPORTED TO YACC */

5597void
5598lang_add_wild (struct wildcard_spec *filespec,
      struct wildcard_list *section_list,
      bfd_boolean keep_sections)
5601{
struct wildcard_list *curr, *next;
lang_wild_statement_type *new;

/* Reverse the list as the parser puts it back to front.  */
for (curr = section_list, section_list = NULL((void*)0);
     curr != NULL((void*)0);
     section_list = curr, curr = next)
  {
    if (curr->spec.name != NULL((void*)0) && strcmp (curr->spec.name, "COMMON") == 0)
placed_commons = TRUE1;

    next = curr->next;
    curr->next = section_list;
  }

if (filespec != NULL((void*)0) && filespec->name != NULL((void*)0))
  {
    if (strcmp (filespec->name, "*") == 0)
filespec->name = NULL((void*)0);
    else if (! wildcardp (filespec->name)(strpbrk ((filespec->name), "?*[") != ((void*)0)))
lang_has_input_file = TRUE1;
  }

new = new_stat (lang_wild_statement, stat_ptr)(lang_wild_statement_type *) new_statement (lang_wild_statement_enum
, sizeof (lang_wild_statement_type), stat_ptr);
new->filename = NULL((void*)0);
new->filenames_sorted = FALSE0;
if (filespec != NULL((void*)0))
  {
    new->filename = filespec->name;
    new->filenames_sorted = filespec->sorted == by_name;
  }
new->section_list = section_list;
new->keep_sections = keep_sections;
lang_list_init (&new->children);
analyze_walk_wild_section_handler (new);
5637}

5639void
5640lang_section_start (const char *name, etree_type *address,
    const segment_type *segment)
5642{
lang_address_statement_type *ad;

ad = new_stat (lang_address_statement, stat_ptr)(lang_address_statement_type *) new_statement (lang_address_statement_enum
, sizeof (lang_address_statement_type), stat_ptr);
ad->section_name = name;
ad->address = address;
ad->segment = segment;
5649}

5651/* Set the start symbol to NAME.  CMDLINE is nonzero if this is called
 because of a -e argument on the command line, or zero if this is
 called by ENTRY in a linker script.  Command line arguments take
 precedence.  */

5656void
5657lang_add_entry (const char *name, bfd_boolean cmdline)
5658{
if (entry_symbol.name == NULL((void*)0)
    || cmdline
    || ! entry_from_cmdline)
  {
    entry_symbol.name = name;
    entry_from_cmdline = cmdline;
  }
5666}

5668/* Set the default start symbol to NAME.  .em files should use this,
 not lang_add_entry, to override the use of "start" if neither the
 linker script nor the command line specifies an entry point.  NAME
 must be permanently allocated.  */
5672void
5673lang_default_entry (const char *name)
5674{
entry_symbol_default = name;
5676}

5678void
5679lang_add_target (const char *name)
5680{
lang_target_statement_type *new;

new = new_stat (lang_target_statement, stat_ptr)(lang_target_statement_type *) new_statement (lang_target_statement_enum
, sizeof (lang_target_statement_type), stat_ptr);
new->target = name;
5685}

5687void
5688lang_add_map (const char *name)
5689{
while (*name)
  {
    switch (*name)
{
case 'F':
 map_option_f = TRUE1;
 break;
}
    name++;
  }
5700}

5702void
5703lang_add_fill (fill_type *fill)
5704{
lang_fill_statement_type *new;

new = new_stat (lang_fill_statement, stat_ptr)(lang_fill_statement_type *) new_statement (lang_fill_statement_enum
, sizeof (lang_fill_statement_type), stat_ptr);
new->fill = fill;
5709}

5711void
5712lang_add_data (int type, union etree_union *exp)
5713{
lang_data_statement_type *new;

new = new_stat (lang_data_statement, stat_ptr)(lang_data_statement_type *) new_statement (lang_data_statement_enum
, sizeof (lang_data_statement_type), stat_ptr);
new->exp = exp;
new->type = type;
5719}

5721/* Create a new reloc statement.  RELOC is the BFD relocation type to
 generate.  HOWTO is the corresponding howto structure (we could
 look this up, but the caller has already done so).  SECTION is the
 section to generate a reloc against, or NAME is the name of the
 symbol to generate a reloc against.  Exactly one of SECTION and
 NAME must be NULL.  ADDEND is an expression for the addend.  */

5728void
5729lang_add_reloc (bfd_reloc_code_real_type reloc,
reloc_howto_type *howto,
asection *section,
const char *name,
union etree_union *addend)
5734{
lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr)(lang_reloc_statement_type *) new_statement (lang_reloc_statement_enum
, sizeof (lang_reloc_statement_type), stat_ptr);

p->reloc = reloc;
p->howto = howto;
p->section = section;
p->name = name;
p->addend_exp = addend;

p->addend_value = 0;
p->output_section = NULL((void*)0);
p->output_offset = 0;
5746}

5748lang_assignment_statement_type *
5749lang_add_assignment (etree_type *exp)
5750{
lang_assignment_statement_type *new;

new = new_stat (lang_assignment_statement, stat_ptr)(lang_assignment_statement_type *) new_statement (lang_assignment_statement_enum
, sizeof (lang_assignment_statement_type), stat_ptr);
new->exp = exp;
return new;
5756}

5758void
5759lang_add_attribute (enum statement_enum attribute)
5760{
new_statement (attribute, sizeof (lang_statement_header_type), stat_ptr);
5762}

5764void
5765lang_startup (const char *name)
5766{
if (startup_file != NULL((void*)0))
  {
    einfo (_("%P%F: multiple STARTUP files\n")("%P%F: multiple STARTUP files\n"));
  }
first_file->filename = name;
first_file->local_sym_name = name;
first_file->real = TRUE1;

startup_file = name;
5776}

5778void
5779lang_float (bfd_boolean maybe)
5780{
lang_float_flag = maybe;
5782}


5785/* Work out the load- and run-time regions from a script statement, and
 store them in *LMA_REGION and *REGION respectively.

 MEMSPEC is the name of the run-time region, or the value of
 DEFAULT_MEMORY_REGION if the statement didn't specify one.
 LMA_MEMSPEC is the name of the load-time region, or null if the
 statement didn't specify one.HAVE_LMA_P is TRUE if the statement
 had an explicit load address.

 It is an error to specify both a load region and a load address.  */

5796static void
5797lang_get_regions (lang_memory_region_type **region,
  lang_memory_region_type **lma_region,
  const char *memspec,
  const char *lma_memspec,
  bfd_boolean have_lma,
  bfd_boolean have_vma)
5803{
*lma_region = lang_memory_region_lookup (lma_memspec, FALSE0);

/* If no runtime region or VMA has been specified, but the load region
   has been specified, then use the load region for the runtime region
   as well.  */
if (lma_memspec14.1
'lma_memspec' is equal to NULL
 != NULL((void*)0)
    && ! have_vma
    && strcmp (memspec, DEFAULT_MEMORY_REGION"*default*") == 0)
  *region = *lma_region;
else
  *region = lang_memory_region_lookup (memspec, FALSE0);
15
←
Value assigned to 'config.build_constructors', which participates in a condition later→

if (have_lma15.1
'have_lma' is 0
 && lma_memspec != 0)
  einfo (_("%X%P:%S: section has both a load address and a load region\n")("%X%P:%S: section has both a load address and a load region\n"
));
5818}

5820void
5821lang_leave_output_section_statement (fill_type *fill, const char *memspec,
		     lang_output_section_phdr_list *phdrs,
		     const char *lma_memspec)
5824{
lang_get_regions (&current_section->region,
14
←
Calling 'lang_get_regions'→
16
←
Returning from 'lang_get_regions'→
    &current_section->lma_region,
    memspec, lma_memspec,
    current_section->load_base != NULL((void*)0),
12
←
Assuming field 'load_base' is equal to NULL→
    current_section->addr_tree != NULL((void*)0));
13
←
Assuming field 'addr_tree' is equal to NULL→
current_section->fill = fill;
current_section->phdrs = phdrs;
stat_ptr = &statement_list;
5833}

5835/* Create an absolute symbol with the given name with the value of the
 address of first byte of the section named.

 If the symbol already exists, then do nothing.  */

5840void
5841lang_abs_symbol_at_beginning_of (const char *secname, const char *name)
5842{
struct bfd_link_hash_entry *h;

h = bfd_link_hash_lookup (link_info.hash, name, TRUE1, TRUE1, TRUE1);
if (h == NULL((void*)0))
  einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")("%P%F: bfd_link_hash_lookup failed: %E\n"));

if (h->type == bfd_link_hash_new
    || h->type == bfd_link_hash_undefined)
  {
    asection *sec;

    h->type = bfd_link_hash_defined;

    sec = bfd_get_section_by_name (output_bfd, secname);
    if (sec == NULL((void*)0))
h->u.def.value = 0;
    else
h->u.def.value = bfd_get_section_vma (output_bfd, sec)((sec)->vma + 0);

    h->u.def.section = bfd_abs_section_ptr((asection *) &bfd_abs_section);
  }
5864}

5866/* Create an absolute symbol with the given name with the value of the
 address of the first byte after the end of the section named.

 If the symbol already exists, then do nothing.  */

5871void
5872lang_abs_symbol_at_end_of (const char *secname, const char *name)
5873{
struct bfd_link_hash_entry *h;

h = bfd_link_hash_lookup (link_info.hash, name, TRUE1, TRUE1, TRUE1);
if (h == NULL((void*)0))
  einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")("%P%F: bfd_link_hash_lookup failed: %E\n"));

if (h->type == bfd_link_hash_new
    || h->type == bfd_link_hash_undefined)
  {
    asection *sec;

    h->type = bfd_link_hash_defined;

    sec = bfd_get_section_by_name (output_bfd, secname);
    if (sec == NULL((void*)0))
h->u.def.value = 0;
    else
h->u.def.value = (bfd_get_section_vma (output_bfd, sec)((sec)->vma + 0)
	  + TO_ADDR (sec->size)((sec->size) >> opb_shift));

    h->u.def.section = bfd_abs_section_ptr((asection *) &bfd_abs_section);
  }
5896}

5898void
5899lang_statement_append (lang_statement_list_type *list,
       lang_statement_union_type *element,
       lang_statement_union_type **field)
5902{
*(list->tail) = element;
list->tail = field;
5905}

5907/* Set the output format type.  -oformat overrides scripts.  */

5909void
5910lang_add_output_format (const char *format,
	const char *big,
	const char *little,
	int from_script)
5914{
if (output_target == NULL((void*)0) || !from_script)
  {
    if (command_line.endian == ENDIAN_BIG
 && big != NULL((void*)0))
format = big;
    else if (command_line.endian == ENDIAN_LITTLE
      && little != NULL((void*)0))
format = little;

    output_target = format;
  }
5926}

5928/* Enter a group.  This creates a new lang_group_statement, and sets
 stat_ptr to build new statements within the group.  */

5931void
5932lang_enter_group (void)
5933{
lang_group_statement_type *g;

g = new_stat (lang_group_statement, stat_ptr)(lang_group_statement_type *) new_statement (lang_group_statement_enum
, sizeof (lang_group_statement_type), stat_ptr);
lang_list_init (&g->children);
stat_ptr = &g->children;
5939}

5941/* Leave a group.  This just resets stat_ptr to start writing to the
 regular list of statements again.  Note that this will not work if
 groups can occur inside anything else which can adjust stat_ptr,
 but currently they can't.  */

5946void
5947lang_leave_group (void)
5948{
stat_ptr = &statement_list;
5950}

5952/* Add a new program header.  This is called for each entry in a PHDRS
 command in a linker script.  */

5955void
5956lang_new_phdr (const char *name,
      etree_type *type,
      bfd_boolean filehdr,
      bfd_boolean phdrs,
      etree_type *at,
      etree_type *flags)
5962{
struct lang_phdr *n, **pp;

n = stat_alloc (sizeof (struct lang_phdr));
n->next = NULL((void*)0);
n->name = name;
n->type = exp_get_value_int (type, 0, "program header type");
n->filehdr = filehdr;
n->phdrs = phdrs;
n->at = at;
n->flags = flags;

for (pp = &lang_phdr_list; *pp != NULL((void*)0); pp = &(*pp)->next)
  ;
*pp = n;
5977}

5979/* Record the program header information in the output BFD.  FIXME: We
 should not be calling an ELF specific function here.  */

5982static void
5983lang_record_phdrs (void)
5984{
unsigned int alc;
asection **secs;
lang_output_section_phdr_list *last;
struct lang_phdr *l;
lang_output_section_statement_type *os;

alc = 10;
secs = xmalloc (alc * sizeof (asection *));
last = NULL((void*)0);
for (l = lang_phdr_list; l != NULL((void*)0); l = l->next)
  {
    unsigned int c;
    flagword flags;
    bfd_vma at;

    c = 0;
    for (os = &lang_output_section_statement.head->output_section_statement;
  os != NULL((void*)0);
  os = os->next)
{
 lang_output_section_phdr_list *pl;

 if (os->constraint == -1)
   continue;

 pl = os->phdrs;
 if (pl != NULL((void*)0))
   last = pl;
 else
   {
     if (os->sectype == noload_section
  || os->bfd_section == NULL((void*)0)
  || (os->bfd_section->flags & SEC_ALLOC0x001) == 0)
continue;
     pl = last;
   }

 if (os->bfd_section == NULL((void*)0))
   continue;

 for (; pl != NULL((void*)0); pl = pl->next)
   {
     if (strcmp (pl->name, l->name) == 0)
{
  if (c >= alc)
    {
      alc *= 2;
      secs = xrealloc (secs, alc * sizeof (asection *));
    }
  secs[c] = os->bfd_section;
  ++c;
  pl->used = TRUE1;
}
   }
}

    if (l->flags == NULL((void*)0))
flags = 0;
    else
flags = exp_get_vma (l->flags, 0, "phdr flags");

    if (l->at == NULL((void*)0))
at = 0;
    else
at = exp_get_vma (l->at, 0, "phdr load address");

    if (! bfd_record_phdr (output_bfd, l->type,
	     l->flags != NULL((void*)0), flags, l->at != NULL((void*)0),
	     at, l->filehdr, l->phdrs, c, secs))
einfo (_("%F%P: bfd_record_phdr failed: %E\n")("%F%P: bfd_record_phdr failed: %E\n"));
  }

free (secs);

/* Make sure all the phdr assignments succeeded.  */
for (os = &lang_output_section_statement.head->output_section_statement;
     os != NULL((void*)0);
     os = os->next)
  {
    lang_output_section_phdr_list *pl;

    if (os->constraint == -1
 || os->bfd_section == NULL((void*)0))
continue;

    for (pl = os->phdrs;
  pl != NULL((void*)0);
  pl = pl->next)
if (! pl->used && strcmp (pl->name, "NONE") != 0)
 einfo (_("%X%P: section `%s' assigned to non-existent phdr `%s'\n")("%X%P: section `%s' assigned to non-existent phdr `%s'\n"),
 os->name, pl->name);
  }
6077}

6079/* Record a list of sections which may not be cross referenced.  */

6081void
6082lang_add_nocrossref (lang_nocrossref_type *l)
6083{
struct lang_nocrossrefs *n;

n = xmalloc (sizeof *n);
n->next = nocrossref_list;
n->list = l;
nocrossref_list = n;

/* Set notice_all so that we get informed about all symbols.  */
link_info.notice_all = TRUE1;
6093}
6094
6095/* Overlay handling.  We handle overlays with some static variables.  */

6097/* The overlay virtual address.  */
6098static etree_type *overlay_vma;
6099/* And subsection alignment.  */
6100static etree_type *overlay_subalign;

6102/* An expression for the maximum section size seen so far.  */
6103static etree_type *overlay_max;

6105/* A list of all the sections in this overlay.  */

6107struct overlay_list {
struct overlay_list *next;
lang_output_section_statement_type *os;
6110};

6112static struct overlay_list *overlay_list;

6114/* Start handling an overlay.  */

6116void
6117lang_enter_overlay (etree_type *vma_expr, etree_type *subalign)
6118{
/* The grammar should prevent nested overlays from occurring.  */
ASSERT (overlay_vma == NULLdo { if (!(overlay_vma == ((void*)0) && overlay_subalign
 == ((void*)0) && overlay_max == ((void*)0))) info_assert
("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c",6122); } while
 (0)
 && overlay_subalign == NULLdo { if (!(overlay_vma == ((void*)0) && overlay_subalign
 == ((void*)0) && overlay_max == ((void*)0))) info_assert
("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c",6122); } while
 (0)
 && overlay_max == NULL)do { if (!(overlay_vma == ((void*)0) && overlay_subalign
 == ((void*)0) && overlay_max == ((void*)0))) info_assert
("/usr/src/gnu/usr.bin/binutils-2.17/ld/ldlang.c",6122); } while
 (0);

overlay_vma = vma_expr;
overlay_subalign = subalign;
6126}

6128/* Start a section in an overlay.  We handle this by calling
 lang_enter_output_section_statement with the correct VMA.
 lang_leave_overlay sets up the LMA and memory regions.  */

6132void
6133lang_enter_overlay_section (const char *name)
6134{
struct overlay_list *n;
etree_type *size;

lang_enter_output_section_statement (name, overlay_vma, normal_section,
		       0, overlay_subalign, 0, 0);

/* If this is the first section, then base the VMA of future
   sections on this one.  This will work correctly even if `.' is
   used in the addresses.  */
if (overlay_list == NULL((void*)0))
  overlay_vma = exp_nameop (ADDR314, name);

/* Remember the section.  */
n = xmalloc (sizeof *n);
n->os = current_section;
n->next = overlay_list;
overlay_list = n;

size = exp_nameop (SIZEOF313, name);

/* Arrange to work out the maximum section end address.  */
if (overlay_max == NULL((void*)0))
  overlay_max = size;
else
  overlay_max = exp_binop (MAX_K316, overlay_max, size);
6160}

6162/* Finish a section in an overlay.  There isn't any special to do
 here.  */

6165void
6166lang_leave_overlay_section (fill_type *fill,
	    lang_output_section_phdr_list *phdrs)
6168{
const char *name;
char *clean, *s2;
const char *s1;
char *buf;

name = current_section->name;

/* For now, assume that DEFAULT_MEMORY_REGION is the run-time memory
   region and that no load-time region has been specified.  It doesn't
   really matter what we say here, since lang_leave_overlay will
   override it.  */
lang_leave_output_section_statement (fill, DEFAULT_MEMORY_REGION"*default*", phdrs, 0);

/* Define the magic symbols.  */

clean = xmalloc (strlen (name) + 1);
s2 = clean;
for (s1 = name; *s1 != '\0'; s1++)
  if (ISALNUM (*s1)(_sch_istable[(*s1) & 0xff] & (unsigned short)(_sch_isalnum
)) || *s1 == '_')
    *s2++ = *s1;
*s2 = '\0';

buf = xmalloc (strlen (clean) + sizeof "__load_start_");
sprintf (buf, "__load_start_%s", clean);
lang_add_assignment (exp_assop ('=', buf,
		  exp_nameop (LOADADDR315, name)));

buf = xmalloc (strlen (clean) + sizeof "__load_stop_");
sprintf (buf, "__load_stop_%s", clean);
lang_add_assignment (exp_assop ('=', buf,
		  exp_binop ('+',
			     exp_nameop (LOADADDR315, name),
			     exp_nameop (SIZEOF313, name))));

free (clean);
6204}

6206/* Finish an overlay.  If there are any overlay wide settings, this
 looks through all the sections in the overlay and sets them.  */

6209void
6210lang_leave_overlay (etree_type *lma_expr,
    int nocrossrefs,
    fill_type *fill,
    const char *memspec,
    lang_output_section_phdr_list *phdrs,
    const char *lma_memspec)
6216{
lang_memory_region_type *region;
lang_memory_region_type *lma_region;
struct overlay_list *l;
lang_nocrossref_type *nocrossref;

lang_get_regions (&region, &lma_region,
    memspec, lma_memspec,
    lma_expr != NULL((void*)0), FALSE0);

nocrossref = NULL((void*)0);

/* After setting the size of the last section, set '.' to end of the
   overlay region.  */
if (overlay_list != NULL((void*)0))
  overlay_list->os->update_dot_tree
    = exp_assop ('=', ".", exp_binop ('+', overlay_vma, overlay_max));

l = overlay_list;
while (l != NULL((void*)0))
  {
    struct overlay_list *next;

    if (fill != NULL((void*)0) && l->os->fill == NULL((void*)0))
l->os->fill = fill;

    l->os->region = region;
    l->os->lma_region = lma_region;

    /* The first section has the load address specified in the
OVERLAY statement.  The rest are worked out from that.
The base address is not needed (and should be null) if
an LMA region was specified.  */
    if (l->next == 0)
l->os->load_base = lma_expr;
    else if (lma_region == 0)
l->os->load_base = exp_binop ('+',
		      exp_nameop (LOADADDR315, l->next->os->name),
		      exp_nameop (SIZEOF313, l->next->os->name));

    if (phdrs != NULL((void*)0) && l->os->phdrs == NULL((void*)0))
l->os->phdrs = phdrs;

    if (nocrossrefs)
{
 lang_nocrossref_type *nc;

 nc = xmalloc (sizeof *nc);
 nc->name = l->os->name;
 nc->next = nocrossref;
 nocrossref = nc;
}

    next = l->next;
    free (l);
    l = next;
  }

if (nocrossref != NULL((void*)0))
  lang_add_nocrossref (nocrossref);

overlay_vma = NULL((void*)0);
overlay_list = NULL((void*)0);
overlay_max = NULL((void*)0);
6280}
6281
6282/* Version handling.  This is only useful for ELF.  */

6284/* This global variable holds the version tree that we build.  */

6286struct bfd_elf_version_tree *lang_elf_version_info;

6288/* If PREV is NULL, return first version pattern matching particular symbol.
 If PREV is non-NULL, return first version pattern matching particular
 symbol after PREV (previously returned by lang_vers_match).  */

6292static struct bfd_elf_version_expr *
6293lang_vers_match (struct bfd_elf_version_expr_head *head,
 struct bfd_elf_version_expr *prev,
 const char *sym)
6296{
const char *cxx_sym = sym;
const char *java_sym = sym;
struct bfd_elf_version_expr *expr = NULL((void*)0);

if (head->mask & BFD_ELF_VERSION_CXX_TYPE2)
  {
    cxx_sym = cplus_demangle (sym, DMGL_PARAMS(1 << 0) | DMGL_ANSI(1 << 1));
    if (!cxx_sym)
cxx_sym = sym;
  }
if (head->mask & BFD_ELF_VERSION_JAVA_TYPE4)
  {
    java_sym = cplus_demangle (sym, DMGL_JAVA(1 << 2));
    if (!java_sym)
java_sym = sym;
  }

if (head->htab && (prev == NULL((void*)0) || prev->symbol))
  {
    struct bfd_elf_version_expr e;

    switch (prev ? prev->mask : 0)
{
 case 0:
   if (head->mask & BFD_ELF_VERSION_C_TYPE1)
     {
e.symbol = sym;
expr = htab_find (head->htab, &e);
while (expr && strcmp (expr->symbol, sym) == 0)
  if (expr->mask == BFD_ELF_VERSION_C_TYPE1)
    goto out_ret;
  else
    expr = expr->next;
     }
   /* Fallthrough */
 case BFD_ELF_VERSION_C_TYPE1:
   if (head->mask & BFD_ELF_VERSION_CXX_TYPE2)
     {
e.symbol = cxx_sym;
expr = htab_find (head->htab, &e);
while (expr && strcmp (expr->symbol, cxx_sym) == 0)
  if (expr->mask == BFD_ELF_VERSION_CXX_TYPE2)
    goto out_ret;
  else
    expr = expr->next;
     }
   /* Fallthrough */
 case BFD_ELF_VERSION_CXX_TYPE2:
   if (head->mask & BFD_ELF_VERSION_JAVA_TYPE4)
     {
e.symbol = java_sym;
expr = htab_find (head->htab, &e);
while (expr && strcmp (expr->symbol, java_sym) == 0)
  if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE4)
    goto out_ret;
  else
    expr = expr->next;
     }
   /* Fallthrough */
 default:
   break;
}
  }

/* Finally, try the wildcards.  */
if (prev == NULL((void*)0) || prev->symbol)
  expr = head->remaining;
else
  expr = prev->next;
for (; expr; expr = expr->next)
  {
    const char *s;

    if (!expr->pattern)
continue;

    if (expr->pattern[0] == '*' && expr->pattern[1] == '\0')
break;

    if (expr->mask == BFD_ELF_VERSION_JAVA_TYPE4)
s = java_sym;
    else if (expr->mask == BFD_ELF_VERSION_CXX_TYPE2)
s = cxx_sym;
    else
s = sym;
    if (fnmatch (expr->pattern, s, 0) == 0)
break;
  }

6386out_ret:
if (cxx_sym != sym)
  free ((char *) cxx_sym);
if (java_sym != sym)
  free ((char *) java_sym);
return expr;
6392}

6394/* Return NULL if the PATTERN argument is a glob pattern, otherwise,
 return a string pointing to the symbol name.  */

6397static const char *
6398realsymbol (const char *pattern)
6399{
const char *p;
bfd_boolean changed = FALSE0, backslash = FALSE0;
char *s, *symbol = xmalloc (strlen (pattern) + 1);

for (p = pattern, s = symbol; *p != '\0'; ++p)
  {
    /* It is a glob pattern only if there is no preceding
backslash.  */
    if (! backslash && (*p == '?' || *p == '*' || *p == '['))
{
 free (symbol);
 return NULL((void*)0);
}

    if (backslash)
{
 /* Remove the preceding backslash.  */
 *(s - 1) = *p;
 changed = TRUE1;
}
    else
*s++ = *p;

    backslash = *p == '\\';
  }

if (changed)
  {
    *s = '\0';
    return symbol;
  }
else
  {
    free (symbol);
    return pattern;
  }
6436}

6438/* This is called for each variable name or match expression.  NEW is
 the name of the symbol to match, or, if LITERAL_P is FALSE, a glob
 pattern to be matched against symbol names.  */

6442struct bfd_elf_version_expr *
6443lang_new_vers_pattern (struct bfd_elf_version_expr *orig,
       const char *new,
       const char *lang,
       bfd_boolean literal_p)
6447{
struct bfd_elf_version_expr *ret;

ret = xmalloc (sizeof *ret);
ret->next = orig;
ret->pattern = literal_p ? NULL((void*)0) : new;
ret->symver = 0;
ret->script = 0;
ret->symbol = literal_p ? new : realsymbol (new);

if (lang == NULL((void*)0) || strcasecmp (lang, "C") == 0)
  ret->mask = BFD_ELF_VERSION_C_TYPE1;
else if (strcasecmp (lang, "C++") == 0)
  ret->mask = BFD_ELF_VERSION_CXX_TYPE2;
else if (strcasecmp (lang, "Java") == 0)
  ret->mask = BFD_ELF_VERSION_JAVA_TYPE4;
else
  {
    einfo (_("%X%P: unknown language `%s' in version information\n")("%X%P: unknown language `%s' in version information\n"),
    lang);
    ret->mask = BFD_ELF_VERSION_C_TYPE1;
  }

return ldemul_new_vers_pattern (ret);
6471}

6473/* This is called for each set of variable names and match
 expressions.  */

6476struct bfd_elf_version_tree *
6477lang_new_vers_node (struct bfd_elf_version_expr *globals,
    struct bfd_elf_version_expr *locals)
6479{
struct bfd_elf_version_tree *ret;

ret = xcalloc (1, sizeof *ret);
ret->globals.list = globals;
ret->locals.list = locals;
ret->match = lang_vers_match;
ret->name_indx = (unsigned int) -1;
return ret;
6488}

6490/* This static variable keeps track of version indices.  */

6492static int version_index;

6494static hashval_t
6495version_expr_head_hash (const void *p)
6496{
const struct bfd_elf_version_expr *e = p;

return htab_hash_string (e->symbol);
6500}

6502static int
6503version_expr_head_eq (const void *p1, const void *p2)
6504{
const struct bfd_elf_version_expr *e1 = p1;
const struct bfd_elf_version_expr *e2 = p2;

return strcmp (e1->symbol, e2->symbol) == 0;
6509}

6511static void
6512lang_finalize_version_expr_head (struct bfd_elf_version_expr_head *head)
6513{
size_t count = 0;
struct bfd_elf_version_expr *e, *next;
struct bfd_elf_version_expr **list_loc, **remaining_loc;

for (e = head->list; e; e = e->next)
  {
    if (e->symbol)
count++;
    head->mask |= e->mask;
  }

if (count)
  {
    head->htab = htab_create (count * 2, version_expr_head_hash,
		version_expr_head_eq, NULL((void*)0));
    list_loc = &head->list;
    remaining_loc = &head->remaining;
    for (e = head->list; e; e = next)
{
 next = e->next;
 if (!e->symbol)
   {
     *remaining_loc = e;
     remaining_loc = &e->next;
   }
 else
   {
     void **loc = htab_find_slot (head->htab, e, INSERT);

     if (*loc)
{
  struct bfd_elf_version_expr *e1, *last;

  e1 = *loc;
  last = NULL((void*)0);
  do
    {
      if (e1->mask == e->mask)
	{
	  last = NULL((void*)0);
	  break;
	}
      last = e1;
      e1 = e1->next;
    }
  while (e1 && strcmp (e1->symbol, e->symbol) == 0);

  if (last == NULL((void*)0))
    {
      /* This is a duplicate.  */
      /* FIXME: Memory leak.  Sometimes pattern is not
	 xmalloced alone, but in larger chunk of memory.  */
      /* free (e->symbol); */
      free (e);
    }
  else
    {
      e->next = last->next;
      last->next = e;
    }
}
     else
{
  *loc = e;
  *list_loc = e;
  list_loc = &e->next;
}
   }
}
    *remaining_loc = NULL((void*)0);
    *list_loc = head->remaining;
  }
else
  head->remaining = head->list;
6588}

6590/* This is called when we know the name and dependencies of the
 version.  */

6593void
6594lang_register_vers_node (const char *name,
	 struct bfd_elf_version_tree *version,
	 struct bfd_elf_version_deps *deps)
6597{
struct bfd_elf_version_tree *t, **pp;
struct bfd_elf_version_expr *e1;

if (name == NULL((void*)0))
  name = "";

if ((name[0] == '\0' && lang_elf_version_info != NULL((void*)0))
    || (lang_elf_version_info && lang_elf_version_info->name[0] == '\0'))
  {
    einfo (_("%X%P: anonymous version tag cannot be combined"("%X%P: anonymous version tag cannot be combined" " with other version tags\n"
)
      " with other version tags\n")("%X%P: anonymous version tag cannot be combined" " with other version tags\n"
));
    free (version);
    return;
  }

/* Make sure this node has a unique name.  */
for (t = lang_elf_version_info; t != NULL((void*)0); t = t->next)
  if (strcmp (t->name, name) == 0)
    einfo (_("%X%P: duplicate version tag `%s'\n")("%X%P: duplicate version tag `%s'\n"), name);

lang_finalize_version_expr_head (&version->globals);
lang_finalize_version_expr_head (&version->locals);

/* Check the global and local match names, and make sure there
   aren't any duplicates.  */

for (e1 = version->globals.list; e1 != NULL((void*)0); e1 = e1->next)
  {
    for (t = lang_elf_version_info; t != NULL((void*)0); t = t->next)
{
 struct bfd_elf_version_expr *e2;

 if (t->locals.htab && e1->symbol)
   {
     e2 = htab_find (t->locals.htab, e1);
     while (e2 && strcmp (e1->symbol, e2->symbol) == 0)
{
  if (e1->mask == e2->mask)
    einfo (_("%X%P: duplicate expression `%s'"("%X%P: duplicate expression `%s'" " in version information\n"
)
	     " in version information\n")("%X%P: duplicate expression `%s'" " in version information\n"
), e1->symbol);
  e2 = e2->next;
}
   }
 else if (!e1->symbol)
   for (e2 = t->locals.remaining; e2 != NULL((void*)0); e2 = e2->next)
     if (strcmp (e1->pattern, e2->pattern) == 0
  && e1->mask == e2->mask)
einfo (_("%X%P: duplicate expression `%s'"("%X%P: duplicate expression `%s'" " in version information\n"
)
	 " in version information\n")("%X%P: duplicate expression `%s'" " in version information\n"
), e1->pattern);
}
  }

for (e1 = version->locals.list; e1 != NULL((void*)0); e1 = e1->next)
  {
    for (t = lang_elf_version_info; t != NULL((void*)0); t = t->next)
{
 struct bfd_elf_version_expr *e2;

 if (t->globals.htab && e1->symbol)
   {
     e2 = htab_find (t->globals.htab, e1);
     while (e2 && strcmp (e1->symbol, e2->symbol) == 0)
{
  if (e1->mask == e2->mask)
    einfo (_("%X%P: duplicate expression `%s'"("%X%P: duplicate expression `%s'" " in version information\n"
)
	     " in version information\n")("%X%P: duplicate expression `%s'" " in version information\n"
),
	   e1->symbol);
  e2 = e2->next;
}
   }
 else if (!e1->symbol)
   for (e2 = t->globals.remaining; e2 != NULL((void*)0); e2 = e2->next)
     if (strcmp (e1->pattern, e2->pattern) == 0
  && e1->mask == e2->mask)
einfo (_("%X%P: duplicate expression `%s'"("%X%P: duplicate expression `%s'" " in version information\n"
)
	 " in version information\n")("%X%P: duplicate expression `%s'" " in version information\n"
), e1->pattern);
}
  }

version->deps = deps;
version->name = name;
if (name[0] != '\0')
  {
    ++version_index;
    version->vernum = version_index;
  }
else
  version->vernum = 0;

for (pp = &lang_elf_version_info; *pp != NULL((void*)0); pp = &(*pp)->next)
  ;
*pp = version;
6690}

6692/* This is called when we see a version dependency.  */

6694struct bfd_elf_version_deps *
6695lang_add_vers_depend (struct bfd_elf_version_deps *list, const char *name)
6696{
struct bfd_elf_version_deps *ret;
struct bfd_elf_version_tree *t;

ret = xmalloc (sizeof *ret);
ret->next = list;

for (t = lang_elf_version_info; t != NULL((void*)0); t = t->next)
  {
    if (strcmp (t->name, name) == 0)
{
 ret->version_needed = t;
 return ret;
}
  }

einfo (_("%X%P: unable to find version dependency `%s'\n")("%X%P: unable to find version dependency `%s'\n"), name);

return ret;
6715}

6717static void
6718lang_do_version_exports_section (void)
6719{
struct bfd_elf_version_expr *greg = NULL((void*)0), *lreg;

LANG_FOR_EACH_INPUT_STATEMENT (is)lang_input_statement_type *is; for (is = (lang_input_statement_type
 *) file_chain.head; is != (lang_input_statement_type *) ((void
*)0); is = (lang_input_statement_type *) is->next)
  {
    asection *sec = bfd_get_section_by_name (is->the_bfd, ".exports");
    char *contents, *p;
    bfd_size_type len;

    if (sec == NULL((void*)0))
continue;

    len = sec->size;
    contents = xmalloc (len);
    if (!bfd_get_section_contents (is->the_bfd, sec, contents, 0, len))
einfo (_("%X%P: unable to read .exports section contents\n")("%X%P: unable to read .exports section contents\n"), sec);

    p = contents;
    while (p < contents + len)
{
 greg = lang_new_vers_pattern (greg, p, NULL((void*)0), FALSE0);
 p = strchr (p, '\0') + 1;
}

    /* Do not free the contents, as we used them creating the regex.  */

    /* Do not include this section in the link.  */
    sec->flags |= SEC_EXCLUDE0x8000;
  }

lreg = lang_new_vers_pattern (NULL((void*)0), "*", NULL((void*)0), FALSE0);
lang_register_vers_node (command_line.version_exports_section,
	   lang_new_vers_node (greg, lreg), NULL((void*)0));
6752}

6754void
6755lang_add_unique (const char *name)
6756{
struct unique_sections *ent;

for (ent = unique_section_list; ent; ent = ent->next)
  if (strcmp (ent->name, name) == 0)
    return;

ent = xmalloc (sizeof *ent);
ent->name = xstrdup (name);
ent->next = unique_section_list;
unique_section_list = ent;
6767}