/* ELF executable support for BFD.
- Copyright 1993, 94, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc.
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+ Free Software Foundation, Inc.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-/*
-
-SECTION
+/* SECTION
+
ELF backends
BFD support for ELF formats is being worked on.
Documentation of the internals of the support code still needs
to be written. The code is changing quickly enough that we
- haven't bothered yet.
- */
+ haven't bothered yet. */
/* For sparc64-cross-sparc32. */
#define _SYSCALL32
#include "libbfd.h"
#define ARCH_SIZE 0
#include "elf-bfd.h"
+#include "libiberty.h"
static INLINE struct elf_segment_map *make_mapping
PARAMS ((bfd *, asection **, unsigned int, unsigned int, boolean));
static boolean prep_headers PARAMS ((bfd *));
static boolean swap_out_syms PARAMS ((bfd *, struct bfd_strtab_hash **, int));
static boolean copy_private_bfd_data PARAMS ((bfd *, bfd *));
-static char *elf_read PARAMS ((bfd *, long, unsigned int));
+static char *elf_read PARAMS ((bfd *, file_ptr, bfd_size_type));
+static const char *group_signature PARAMS ((bfd *, Elf_Internal_Shdr *));
+static boolean setup_group PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
+static void merge_sections_remove_hook PARAMS ((bfd *, asection *));
static void elf_fake_sections PARAMS ((bfd *, asection *, PTR));
static boolean assign_section_numbers PARAMS ((bfd *));
static INLINE int sym_is_global PARAMS ((bfd *, asymbol *));
static boolean elf_map_symbols PARAMS ((bfd *));
static bfd_size_type get_program_header_size PARAMS ((bfd *));
-static boolean elfcore_read_notes PARAMS ((bfd *, bfd_vma, bfd_vma));
+static boolean elfcore_read_notes PARAMS ((bfd *, file_ptr, bfd_size_type));
+static boolean elf_find_function PARAMS ((bfd *, asection *, asymbol **,
+ bfd_vma, const char **,
+ const char **));
+static int elfcore_make_pid PARAMS ((bfd *));
+static boolean elfcore_maybe_make_sect PARAMS ((bfd *, char *, asection *));
+static boolean elfcore_make_note_pseudosection PARAMS ((bfd *, char *,
+ Elf_Internal_Note *));
+static boolean elfcore_grok_prfpreg PARAMS ((bfd *, Elf_Internal_Note *));
+static boolean elfcore_grok_prxfpreg PARAMS ((bfd *, Elf_Internal_Note *));
+static boolean elfcore_grok_note PARAMS ((bfd *, Elf_Internal_Note *));
+
+static boolean elfcore_netbsd_get_lwpid PARAMS ((Elf_Internal_Note *, int *));
+static boolean elfcore_grok_netbsd_procinfo PARAMS ((bfd *,
+ Elf_Internal_Note *));
+static boolean elfcore_grok_netbsd_note PARAMS ((bfd *, Elf_Internal_Note *));
/* Swap version information in and out. The version information is
currently size independent. If that ever changes, this code will
const Elf_External_Verdef *src;
Elf_Internal_Verdef *dst;
{
- dst->vd_version = bfd_h_get_16 (abfd, src->vd_version);
- dst->vd_flags = bfd_h_get_16 (abfd, src->vd_flags);
- dst->vd_ndx = bfd_h_get_16 (abfd, src->vd_ndx);
- dst->vd_cnt = bfd_h_get_16 (abfd, src->vd_cnt);
- dst->vd_hash = bfd_h_get_32 (abfd, src->vd_hash);
- dst->vd_aux = bfd_h_get_32 (abfd, src->vd_aux);
- dst->vd_next = bfd_h_get_32 (abfd, src->vd_next);
+ dst->vd_version = H_GET_16 (abfd, src->vd_version);
+ dst->vd_flags = H_GET_16 (abfd, src->vd_flags);
+ dst->vd_ndx = H_GET_16 (abfd, src->vd_ndx);
+ dst->vd_cnt = H_GET_16 (abfd, src->vd_cnt);
+ dst->vd_hash = H_GET_32 (abfd, src->vd_hash);
+ dst->vd_aux = H_GET_32 (abfd, src->vd_aux);
+ dst->vd_next = H_GET_32 (abfd, src->vd_next);
}
/* Swap out a Verdef structure. */
const Elf_Internal_Verdef *src;
Elf_External_Verdef *dst;
{
- bfd_h_put_16 (abfd, src->vd_version, dst->vd_version);
- bfd_h_put_16 (abfd, src->vd_flags, dst->vd_flags);
- bfd_h_put_16 (abfd, src->vd_ndx, dst->vd_ndx);
- bfd_h_put_16 (abfd, src->vd_cnt, dst->vd_cnt);
- bfd_h_put_32 (abfd, src->vd_hash, dst->vd_hash);
- bfd_h_put_32 (abfd, src->vd_aux, dst->vd_aux);
- bfd_h_put_32 (abfd, src->vd_next, dst->vd_next);
+ H_PUT_16 (abfd, src->vd_version, dst->vd_version);
+ H_PUT_16 (abfd, src->vd_flags, dst->vd_flags);
+ H_PUT_16 (abfd, src->vd_ndx, dst->vd_ndx);
+ H_PUT_16 (abfd, src->vd_cnt, dst->vd_cnt);
+ H_PUT_32 (abfd, src->vd_hash, dst->vd_hash);
+ H_PUT_32 (abfd, src->vd_aux, dst->vd_aux);
+ H_PUT_32 (abfd, src->vd_next, dst->vd_next);
}
/* Swap in a Verdaux structure. */
const Elf_External_Verdaux *src;
Elf_Internal_Verdaux *dst;
{
- dst->vda_name = bfd_h_get_32 (abfd, src->vda_name);
- dst->vda_next = bfd_h_get_32 (abfd, src->vda_next);
+ dst->vda_name = H_GET_32 (abfd, src->vda_name);
+ dst->vda_next = H_GET_32 (abfd, src->vda_next);
}
/* Swap out a Verdaux structure. */
const Elf_Internal_Verdaux *src;
Elf_External_Verdaux *dst;
{
- bfd_h_put_32 (abfd, src->vda_name, dst->vda_name);
- bfd_h_put_32 (abfd, src->vda_next, dst->vda_next);
+ H_PUT_32 (abfd, src->vda_name, dst->vda_name);
+ H_PUT_32 (abfd, src->vda_next, dst->vda_next);
}
/* Swap in a Verneed structure. */
const Elf_External_Verneed *src;
Elf_Internal_Verneed *dst;
{
- dst->vn_version = bfd_h_get_16 (abfd, src->vn_version);
- dst->vn_cnt = bfd_h_get_16 (abfd, src->vn_cnt);
- dst->vn_file = bfd_h_get_32 (abfd, src->vn_file);
- dst->vn_aux = bfd_h_get_32 (abfd, src->vn_aux);
- dst->vn_next = bfd_h_get_32 (abfd, src->vn_next);
+ dst->vn_version = H_GET_16 (abfd, src->vn_version);
+ dst->vn_cnt = H_GET_16 (abfd, src->vn_cnt);
+ dst->vn_file = H_GET_32 (abfd, src->vn_file);
+ dst->vn_aux = H_GET_32 (abfd, src->vn_aux);
+ dst->vn_next = H_GET_32 (abfd, src->vn_next);
}
/* Swap out a Verneed structure. */
const Elf_Internal_Verneed *src;
Elf_External_Verneed *dst;
{
- bfd_h_put_16 (abfd, src->vn_version, dst->vn_version);
- bfd_h_put_16 (abfd, src->vn_cnt, dst->vn_cnt);
- bfd_h_put_32 (abfd, src->vn_file, dst->vn_file);
- bfd_h_put_32 (abfd, src->vn_aux, dst->vn_aux);
- bfd_h_put_32 (abfd, src->vn_next, dst->vn_next);
+ H_PUT_16 (abfd, src->vn_version, dst->vn_version);
+ H_PUT_16 (abfd, src->vn_cnt, dst->vn_cnt);
+ H_PUT_32 (abfd, src->vn_file, dst->vn_file);
+ H_PUT_32 (abfd, src->vn_aux, dst->vn_aux);
+ H_PUT_32 (abfd, src->vn_next, dst->vn_next);
}
/* Swap in a Vernaux structure. */
const Elf_External_Vernaux *src;
Elf_Internal_Vernaux *dst;
{
- dst->vna_hash = bfd_h_get_32 (abfd, src->vna_hash);
- dst->vna_flags = bfd_h_get_16 (abfd, src->vna_flags);
- dst->vna_other = bfd_h_get_16 (abfd, src->vna_other);
- dst->vna_name = bfd_h_get_32 (abfd, src->vna_name);
- dst->vna_next = bfd_h_get_32 (abfd, src->vna_next);
+ dst->vna_hash = H_GET_32 (abfd, src->vna_hash);
+ dst->vna_flags = H_GET_16 (abfd, src->vna_flags);
+ dst->vna_other = H_GET_16 (abfd, src->vna_other);
+ dst->vna_name = H_GET_32 (abfd, src->vna_name);
+ dst->vna_next = H_GET_32 (abfd, src->vna_next);
}
/* Swap out a Vernaux structure. */
const Elf_Internal_Vernaux *src;
Elf_External_Vernaux *dst;
{
- bfd_h_put_32 (abfd, src->vna_hash, dst->vna_hash);
- bfd_h_put_16 (abfd, src->vna_flags, dst->vna_flags);
- bfd_h_put_16 (abfd, src->vna_other, dst->vna_other);
- bfd_h_put_32 (abfd, src->vna_name, dst->vna_name);
- bfd_h_put_32 (abfd, src->vna_next, dst->vna_next);
+ H_PUT_32 (abfd, src->vna_hash, dst->vna_hash);
+ H_PUT_16 (abfd, src->vna_flags, dst->vna_flags);
+ H_PUT_16 (abfd, src->vna_other, dst->vna_other);
+ H_PUT_32 (abfd, src->vna_name, dst->vna_name);
+ H_PUT_32 (abfd, src->vna_next, dst->vna_next);
}
/* Swap in a Versym structure. */
const Elf_External_Versym *src;
Elf_Internal_Versym *dst;
{
- dst->vs_vers = bfd_h_get_16 (abfd, src->vs_vers);
+ dst->vs_vers = H_GET_16 (abfd, src->vs_vers);
}
/* Swap out a Versym structure. */
const Elf_Internal_Versym *src;
Elf_External_Versym *dst;
{
- bfd_h_put_16 (abfd, src->vs_vers, dst->vs_vers);
+ H_PUT_16 (abfd, src->vs_vers, dst->vs_vers);
}
/* Standard ELF hash function. Do not change this function; you will
static char *
elf_read (abfd, offset, size)
bfd *abfd;
- long offset;
- unsigned int size;
+ file_ptr offset;
+ bfd_size_type size;
{
char *buf;
if ((buf = bfd_alloc (abfd, size)) == NULL)
return NULL;
- if (bfd_seek (abfd, offset, SEEK_SET) == -1)
+ if (bfd_seek (abfd, offset, SEEK_SET) != 0)
return NULL;
- if (bfd_read ((PTR) buf, size, 1, abfd) != size)
+ if (bfd_bread ((PTR) buf, size, abfd) != size)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_file_truncated);
{
/* This just does initialization. */
/* coff_mkobject zalloc's space for tdata.coff_obj_data ... */
- elf_tdata (abfd) = (struct elf_obj_tdata *)
- bfd_zalloc (abfd, sizeof (struct elf_obj_tdata));
+ bfd_size_type amt = sizeof (struct elf_obj_tdata);
+ elf_tdata (abfd) = (struct elf_obj_tdata *) bfd_zalloc (abfd, amt);
if (elf_tdata (abfd) == 0)
return false;
/* Since everything is done at close time, do we need any
{
Elf_Internal_Shdr **i_shdrp;
char *shstrtab = NULL;
- unsigned int offset;
- unsigned int shstrtabsize;
+ file_ptr offset;
+ bfd_size_type shstrtabsize;
i_shdrp = elf_elfsections (abfd);
if (i_shdrp == 0 || i_shdrp[shindex] == 0)
{
(*_bfd_error_handler)
(_("%s: invalid string offset %u >= %lu for section `%s'"),
- bfd_get_filename (abfd), strindex, (unsigned long) hdr->sh_size,
+ bfd_archive_filename (abfd), strindex, (unsigned long) hdr->sh_size,
((shindex == elf_elfheader(abfd)->e_shstrndx
&& strindex == hdr->sh_name)
? ".shstrtab"
return ((char *) hdr->contents) + strindex;
}
+/* Elf_Internal_Shdr->contents is an array of these for SHT_GROUP
+ sections. The first element is the flags, the rest are section
+ pointers. */
+
+typedef union elf_internal_group {
+ Elf_Internal_Shdr *shdr;
+ unsigned int flags;
+} Elf_Internal_Group;
+
+/* Return the name of the group signature symbol. Why isn't the
+ signature just a string? */
+
+static const char *
+group_signature (abfd, ghdr)
+ bfd *abfd;
+ Elf_Internal_Shdr *ghdr;
+{
+ struct elf_backend_data *bed;
+ file_ptr pos;
+ bfd_size_type amt;
+ Elf_Internal_Shdr *hdr;
+ Elf_Internal_Shdr *shndx_hdr;
+ unsigned char esym[sizeof (Elf64_External_Sym)];
+ Elf_External_Sym_Shndx eshndx;
+ Elf_Internal_Sym isym;
+ unsigned int iname;
+ unsigned int shindex;
+
+ /* First we need to ensure the symbol table is available. */
+ if (! bfd_section_from_shdr (abfd, ghdr->sh_link))
+ return NULL;
+
+ /* Go read the symbol. */
+ hdr = &elf_tdata (abfd)->symtab_hdr;
+ bed = get_elf_backend_data (abfd);
+ amt = bed->s->sizeof_sym;
+ pos = hdr->sh_offset + ghdr->sh_info * amt;
+ if (bfd_seek (abfd, pos, SEEK_SET) != 0
+ || bfd_bread (esym, amt, abfd) != amt)
+ return NULL;
+
+ /* And possibly the symbol section index extension. */
+ shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+ if (elf_elfsections (abfd) != NULL
+ && elf_elfsections (abfd)[shndx_hdr->sh_link] == hdr)
+ {
+ amt = sizeof (Elf_External_Sym_Shndx);
+ pos = shndx_hdr->sh_offset + ghdr->sh_info * amt;
+ if (bfd_seek (abfd, pos, SEEK_SET) != 0
+ || bfd_bread ((PTR) &eshndx, amt, abfd) != amt)
+ return NULL;
+ }
+
+ /* Convert to internal format. */
+ (*bed->s->swap_symbol_in) (abfd, (const PTR *) &esym, (const PTR *) &eshndx,
+ &isym);
+
+ /* Look up the symbol name. */
+ iname = isym.st_name;
+ shindex = hdr->sh_link;
+ if (iname == 0 && ELF_ST_TYPE (isym.st_info) == STT_SECTION)
+ {
+ iname = elf_elfsections (abfd)[isym.st_shndx]->sh_name;
+ shindex = elf_elfheader (abfd)->e_shstrndx;
+ }
+
+ return bfd_elf_string_from_elf_section (abfd, shindex, iname);
+}
+
+/* Set next_in_group list pointer, and group name for NEWSECT. */
+
+static boolean
+setup_group (abfd, hdr, newsect)
+ bfd *abfd;
+ Elf_Internal_Shdr *hdr;
+ asection *newsect;
+{
+ unsigned int num_group = elf_tdata (abfd)->num_group;
+
+ /* If num_group is zero, read in all SHT_GROUP sections. The count
+ is set to -1 if there are no SHT_GROUP sections. */
+ if (num_group == 0)
+ {
+ unsigned int i, shnum;
+
+ /* First count the number of groups. If we have a SHT_GROUP
+ section with just a flag word (ie. sh_size is 4), ignore it. */
+ shnum = elf_numsections (abfd);
+ num_group = 0;
+ for (i = 0; i < shnum; i++)
+ {
+ Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i];
+ if (shdr->sh_type == SHT_GROUP && shdr->sh_size >= 8)
+ num_group += 1;
+ }
+
+ if (num_group == 0)
+ num_group = (unsigned) -1;
+ elf_tdata (abfd)->num_group = num_group;
+
+ if (num_group > 0)
+ {
+ /* We keep a list of elf section headers for group sections,
+ so we can find them quickly. */
+ bfd_size_type amt = num_group * sizeof (Elf_Internal_Shdr *);
+ elf_tdata (abfd)->group_sect_ptr = bfd_alloc (abfd, amt);
+ if (elf_tdata (abfd)->group_sect_ptr == NULL)
+ return false;
+
+ num_group = 0;
+ for (i = 0; i < shnum; i++)
+ {
+ Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[i];
+ if (shdr->sh_type == SHT_GROUP && shdr->sh_size >= 8)
+ {
+ unsigned char *src;
+ Elf_Internal_Group *dest;
+
+ /* Add to list of sections. */
+ elf_tdata (abfd)->group_sect_ptr[num_group] = shdr;
+ num_group += 1;
+
+ /* Read the raw contents. */
+ BFD_ASSERT (sizeof (*dest) >= 4);
+ amt = shdr->sh_size * sizeof (*dest) / 4;
+ shdr->contents = bfd_alloc (abfd, amt);
+ if (shdr->contents == NULL
+ || bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0
+ || (bfd_bread (shdr->contents, shdr->sh_size, abfd)
+ != shdr->sh_size))
+ return false;
+
+ /* Translate raw contents, a flag word followed by an
+ array of elf section indices all in target byte order,
+ to the flag word followed by an array of elf section
+ pointers. */
+ src = shdr->contents + shdr->sh_size;
+ dest = (Elf_Internal_Group *) (shdr->contents + amt);
+ while (1)
+ {
+ unsigned int idx;
+
+ src -= 4;
+ --dest;
+ idx = H_GET_32 (abfd, src);
+ if (src == shdr->contents)
+ {
+ dest->flags = idx;
+ if (shdr->bfd_section != NULL && (idx & GRP_COMDAT))
+ shdr->bfd_section->flags
+ |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
+ break;
+ }
+ if (idx >= shnum)
+ {
+ ((*_bfd_error_handler)
+ (_("%s: invalid SHT_GROUP entry"),
+ bfd_archive_filename (abfd)));
+ idx = 0;
+ }
+ dest->shdr = elf_elfsections (abfd)[idx];
+ }
+ }
+ }
+ }
+ }
+
+ if (num_group != (unsigned) -1)
+ {
+ unsigned int i;
+
+ for (i = 0; i < num_group; i++)
+ {
+ Elf_Internal_Shdr *shdr = elf_tdata (abfd)->group_sect_ptr[i];
+ Elf_Internal_Group *idx = (Elf_Internal_Group *) shdr->contents;
+ unsigned int n_elt = shdr->sh_size / 4;
+
+ /* Look through this group's sections to see if current
+ section is a member. */
+ while (--n_elt != 0)
+ if ((++idx)->shdr == hdr)
+ {
+ asection *s = NULL;
+
+ /* We are a member of this group. Go looking through
+ other members to see if any others are linked via
+ next_in_group. */
+ idx = (Elf_Internal_Group *) shdr->contents;
+ n_elt = shdr->sh_size / 4;
+ while (--n_elt != 0)
+ if ((s = (++idx)->shdr->bfd_section) != NULL
+ && elf_next_in_group (s) != NULL)
+ break;
+ if (n_elt != 0)
+ {
+ /* Snarf the group name from other member, and
+ insert current section in circular list. */
+ elf_group_name (newsect) = elf_group_name (s);
+ elf_next_in_group (newsect) = elf_next_in_group (s);
+ elf_next_in_group (s) = newsect;
+ }
+ else
+ {
+ const char *gname;
+
+ gname = group_signature (abfd, shdr);
+ if (gname == NULL)
+ return false;
+ elf_group_name (newsect) = gname;
+
+ /* Start a circular list with one element. */
+ elf_next_in_group (newsect) = newsect;
+ }
+
+ /* If the group section has been created, point to the
+ new member. */
+ if (shdr->bfd_section != NULL)
+ elf_next_in_group (shdr->bfd_section) = newsect;
+
+ i = num_group - 1;
+ break;
+ }
+ }
+ }
+
+ if (elf_group_name (newsect) == NULL)
+ {
+ (*_bfd_error_handler) (_("%s: no group info for section %s"),
+ bfd_archive_filename (abfd), newsect->name);
+ }
+ return true;
+}
+
+boolean
+bfd_elf_discard_group (abfd, group)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *group;
+{
+ asection *first = elf_next_in_group (group);
+ asection *s = first;
+
+ while (s != NULL)
+ {
+ s->output_section = bfd_abs_section_ptr;
+ s = elf_next_in_group (s);
+ /* These lists are circular. */
+ if (s == first)
+ break;
+ }
+ return true;
+}
+
/* Make a BFD section from an ELF section. We store a pointer to the
BFD section in the bfd_section field of the header. */
if (! bfd_set_section_vma (abfd, newsect, hdr->sh_addr)
|| ! bfd_set_section_size (abfd, newsect, hdr->sh_size)
|| ! bfd_set_section_alignment (abfd, newsect,
- bfd_log2 (hdr->sh_addralign)))
+ bfd_log2 ((bfd_vma) hdr->sh_addralign)))
return false;
flags = SEC_NO_FLAGS;
if (hdr->sh_type != SHT_NOBITS)
flags |= SEC_HAS_CONTENTS;
+ if (hdr->sh_type == SHT_GROUP)
+ flags |= SEC_GROUP | SEC_EXCLUDE;
if ((hdr->sh_flags & SHF_ALLOC) != 0)
{
flags |= SEC_ALLOC;
flags |= SEC_CODE;
else if ((flags & SEC_LOAD) != 0)
flags |= SEC_DATA;
+ if ((hdr->sh_flags & SHF_MERGE) != 0)
+ {
+ flags |= SEC_MERGE;
+ newsect->entsize = hdr->sh_entsize;
+ if ((hdr->sh_flags & SHF_STRINGS) != 0)
+ flags |= SEC_STRINGS;
+ }
+ if (hdr->sh_flags & SHF_GROUP)
+ if (!setup_group (abfd, hdr, newsect))
+ return false;
+ if ((hdr->sh_flags & SHF_TLS) != 0)
+ flags |= SEC_THREAD_LOCAL;
/* The debugging sections appear to be recognized only by name, not
any sort of flag. */
};
int i;
- for (i = sizeof (debug_sec_names) / sizeof (debug_sec_names[0]); i--;)
+ for (i = ARRAY_SIZE (debug_sec_names); i--;)
if (strncmp (name, debug_sec_names[i], strlen (debug_sec_names[i])) == 0)
break;
The symbols will be defined as weak, so that multiple definitions
are permitted. The GNU linker extension is to actually discard
all but one of the sections. */
- if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0)
+ if (strncmp (name, ".gnu.linkonce", sizeof ".gnu.linkonce" - 1) == 0
+ && elf_next_in_group (newsect) == NULL)
flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
bed = get_elf_backend_data (abfd);
phdr = elf_tdata (abfd)->phdr;
for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++)
{
+ /* This section is part of this segment if its file
+ offset plus size lies within the segment's memory
+ span and, if the section is loaded, the extent of the
+ loaded data lies within the extent of the segment.
+
+ Note - we used to check the p_paddr field as well, and
+ refuse to set the LMA if it was 0. This is wrong
+ though, as a perfectly valid initialised segment can
+ have a p_paddr of zero. Some architectures, eg ARM,
+ place special significance on the address 0 and
+ executables need to be able to have a segment which
+ covers this address. */
if (phdr->p_type == PT_LOAD
- && phdr->p_vaddr != phdr->p_paddr
- && phdr->p_vaddr <= hdr->sh_addr
- && (phdr->p_vaddr + phdr->p_memsz
- >= hdr->sh_addr + hdr->sh_size)
+ && (bfd_vma) hdr->sh_offset >= phdr->p_offset
+ && (hdr->sh_offset + hdr->sh_size
+ <= phdr->p_offset + phdr->p_memsz)
&& ((flags & SEC_LOAD) == 0
- || (phdr->p_offset <= (bfd_vma) hdr->sh_offset
- && (phdr->p_offset + phdr->p_filesz
- >= hdr->sh_offset + hdr->sh_size))))
+ || (hdr->sh_offset + hdr->sh_size
+ <= phdr->p_offset + phdr->p_filesz)))
{
- newsect->lma += phdr->p_paddr - phdr->p_vaddr;
- break;
+ if ((flags & SEC_LOAD) == 0)
+ newsect->lma = (phdr->p_paddr
+ + hdr->sh_addr - phdr->p_vaddr);
+ else
+ /* We used to use the same adjustment for SEC_LOAD
+ sections, but that doesn't work if the segment
+ is packed with code from multiple VMAs.
+ Instead we calculate the section LMA based on
+ the segment LMA. It is assumed that the
+ segment will contain sections with contiguous
+ LMAs, even if the VMAs are not. */
+ newsect->lma = (phdr->p_paddr
+ + hdr->sh_offset - phdr->p_offset);
+
+ /* With contiguous segments, we can't tell from file
+ offsets whether a section with zero size should
+ be placed at the end of one segment or the
+ beginning of the next. Decide based on vaddr. */
+ if (hdr->sh_addr >= phdr->p_vaddr
+ && (hdr->sh_addr + hdr->sh_size
+ <= phdr->p_vaddr + phdr->p_memsz))
+ break;
}
}
}
i_shdrp = elf_elfsections (abfd);
if (i_shdrp != NULL)
{
- shstrtab = bfd_elf_get_str_section
- (abfd, elf_elfheader (abfd)->e_shstrndx);
+ shstrtab = bfd_elf_get_str_section (abfd,
+ elf_elfheader (abfd)->e_shstrndx);
if (shstrtab != NULL)
{
- max = elf_elfheader (abfd)->e_shnum;
+ max = elf_numsections (abfd);
for (i = 1; i < max; i++)
if (!strcmp (&shstrtab[i_shdrp[i]->sh_name], name))
return i_shdrp[i];
return bfd_reloc_continue;
}
\f
+/* Make sure sec_info_type is cleared if sec_info is cleared too. */
+
+static void
+merge_sections_remove_hook (abfd, sec)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *sec;
+{
+ struct bfd_elf_section_data *sec_data;
+
+ sec_data = elf_section_data (sec);
+ BFD_ASSERT (sec_data->sec_info_type == ELF_INFO_TYPE_MERGE);
+ sec_data->sec_info_type = ELF_INFO_TYPE_NONE;
+}
+
+/* Finish SHF_MERGE section merging. */
+
+boolean
+_bfd_elf_merge_sections (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ if (!is_elf_hash_table (info))
+ return false;
+ if (elf_hash_table (info)->merge_info)
+ _bfd_merge_sections (abfd, elf_hash_table (info)->merge_info,
+ merge_sections_remove_hook);
+ return true;
+}
+
+void
+_bfd_elf_link_just_syms (sec, info)
+ asection *sec;
+ struct bfd_link_info *info;
+{
+ sec->output_section = bfd_abs_section_ptr;
+ sec->output_offset = sec->vma;
+ if (!is_elf_hash_table (info))
+ return;
+
+ elf_section_data (sec)->sec_info_type = ELF_INFO_TYPE_JUST_SYMS;
+}
+\f
+/* Copy the program header and other data from one object module to
+ another. */
+
+boolean
+_bfd_elf_copy_private_bfd_data (ibfd, obfd)
+ bfd *ibfd;
+ bfd *obfd;
+{
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
+ return true;
+
+ BFD_ASSERT (!elf_flags_init (obfd)
+ || (elf_elfheader (obfd)->e_flags
+ == elf_elfheader (ibfd)->e_flags));
+
+ elf_gp (obfd) = elf_gp (ibfd);
+ elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
+ elf_flags_init (obfd) = true;
+ return true;
+}
+
/* Print out the program headers. */
boolean
c = elf_elfheader (abfd)->e_phnum;
for (i = 0; i < c; i++, p++)
{
- const char *s;
+ const char *pt;
char buf[20];
switch (p->p_type)
{
- case PT_NULL: s = "NULL"; break;
- case PT_LOAD: s = "LOAD"; break;
- case PT_DYNAMIC: s = "DYNAMIC"; break;
- case PT_INTERP: s = "INTERP"; break;
- case PT_NOTE: s = "NOTE"; break;
- case PT_SHLIB: s = "SHLIB"; break;
- case PT_PHDR: s = "PHDR"; break;
- default: sprintf (buf, "0x%lx", p->p_type); s = buf; break;
+ case PT_NULL: pt = "NULL"; break;
+ case PT_LOAD: pt = "LOAD"; break;
+ case PT_DYNAMIC: pt = "DYNAMIC"; break;
+ case PT_INTERP: pt = "INTERP"; break;
+ case PT_NOTE: pt = "NOTE"; break;
+ case PT_SHLIB: pt = "SHLIB"; break;
+ case PT_PHDR: pt = "PHDR"; break;
+ case PT_TLS: pt = "TLS"; break;
+ case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break;
+ default: sprintf (buf, "0x%lx", p->p_type); pt = buf; break;
}
- fprintf (f, "%8s off 0x", s);
- fprintf_vma (f, p->p_offset);
+ fprintf (f, "%8s off 0x", pt);
+ bfd_fprintf_vma (abfd, f, p->p_offset);
fprintf (f, " vaddr 0x");
- fprintf_vma (f, p->p_vaddr);
+ bfd_fprintf_vma (abfd, f, p->p_vaddr);
fprintf (f, " paddr 0x");
- fprintf_vma (f, p->p_paddr);
+ bfd_fprintf_vma (abfd, f, p->p_paddr);
fprintf (f, " align 2**%u\n", bfd_log2 (p->p_align));
fprintf (f, " filesz 0x");
- fprintf_vma (f, p->p_filesz);
+ bfd_fprintf_vma (abfd, f, p->p_filesz);
fprintf (f, " memsz 0x");
- fprintf_vma (f, p->p_memsz);
+ bfd_fprintf_vma (abfd, f, p->p_memsz);
fprintf (f, " flags %c%c%c",
(p->p_flags & PF_R) != 0 ? 'r' : '-',
(p->p_flags & PF_W) != 0 ? 'w' : '-',
(p->p_flags & PF_X) != 0 ? 'x' : '-');
- if ((p->p_flags &~ (PF_R | PF_W | PF_X)) != 0)
- fprintf (f, " %lx", p->p_flags &~ (PF_R | PF_W | PF_X));
+ if ((p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X)) != 0)
+ fprintf (f, " %lx", p->p_flags &~ (unsigned) (PF_R | PF_W | PF_X));
fprintf (f, "\n");
}
}
if (s != NULL)
{
int elfsec;
- unsigned long link;
+ unsigned long shlink;
bfd_byte *extdyn, *extdynend;
size_t extdynsize;
void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
elfsec = _bfd_elf_section_from_bfd_section (abfd, s);
if (elfsec == -1)
goto error_return;
- link = elf_elfsections (abfd)[elfsec]->sh_link;
+ shlink = elf_elfsections (abfd)[elfsec]->sh_link;
extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
else
{
const char *string;
+ unsigned int tagv = dyn.d_un.d_val;
- string = bfd_elf_string_from_elf_section (abfd, link,
- dyn.d_un.d_val);
+ string = bfd_elf_string_from_elf_section (abfd, shlink, tagv);
if (string == NULL)
goto error_return;
fprintf (f, "%s", string);
break;
case bfd_print_symbol_more:
fprintf (file, "elf ");
- fprintf_vma (file, symbol->value);
+ bfd_fprintf_vma (abfd, file, symbol->value);
fprintf (file, " %lx", (long) symbol->flags);
break;
case bfd_print_symbol_all:
{
- CONST char *section_name;
- CONST char *name = NULL;
+ const char *section_name;
+ const char *name = NULL;
struct elf_backend_data *bed;
unsigned char st_other;
+ bfd_vma val;
section_name = symbol->section ? symbol->section->name : "(*none*)";
if (name == NULL)
{
name = symbol->name;
- bfd_print_symbol_vandf ((PTR) file, symbol);
+ bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
}
fprintf (file, " %s\t", section_name);
we've already printed the size; now print the alignment.
For other symbols, we have no specified alignment, and
we've printed the address; now print the size. */
- fprintf_vma (file,
- (bfd_is_com_section (symbol->section)
- ? ((elf_symbol_type *) symbol)->internal_elf_sym.st_value
- : ((elf_symbol_type *) symbol)->internal_elf_sym.st_size));
+ if (bfd_is_com_section (symbol->section))
+ val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_value;
+ else
+ val = ((elf_symbol_type *) symbol)->internal_elf_sym.st_size;
+ bfd_fprintf_vma (abfd, file, val);
/* If we have version information, print it. */
if (elf_tdata (abfd)->dynversym_section != 0
struct bfd_hash_table *table;
const char *string;
{
- struct elf_link_hash_entry *ret = (struct elf_link_hash_entry *) entry;
-
/* Allocate the structure if it has not already been allocated by a
subclass. */
- if (ret == (struct elf_link_hash_entry *) NULL)
- ret = ((struct elf_link_hash_entry *)
- bfd_hash_allocate (table, sizeof (struct elf_link_hash_entry)));
- if (ret == (struct elf_link_hash_entry *) NULL)
- return (struct bfd_hash_entry *) ret;
+ if (entry == NULL)
+ {
+ entry = bfd_hash_allocate (table, sizeof (struct elf_link_hash_entry));
+ if (entry == NULL)
+ return entry;
+ }
/* Call the allocation method of the superclass. */
- ret = ((struct elf_link_hash_entry *)
- _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
- table, string));
- if (ret != (struct elf_link_hash_entry *) NULL)
+ entry = _bfd_link_hash_newfunc (entry, table, string);
+ if (entry != NULL)
{
+ struct elf_link_hash_entry *ret = (struct elf_link_hash_entry *) entry;
+ struct elf_link_hash_table *htab = (struct elf_link_hash_table *) table;
+
/* Set local fields. */
ret->indx = -1;
ret->size = 0;
ret->dynindx = -1;
ret->dynstr_index = 0;
ret->weakdef = NULL;
- ret->got.offset = (bfd_vma) -1;
- ret->plt.offset = (bfd_vma) -1;
- ret->linker_section_pointer = (elf_linker_section_pointers_t *)0;
+ ret->got.refcount = htab->init_refcount;
+ ret->plt.refcount = htab->init_refcount;
+ ret->linker_section_pointer = NULL;
ret->verinfo.verdef = NULL;
ret->vtable_entries_used = NULL;
ret->vtable_entries_size = 0;
ret->elf_link_hash_flags = ELF_LINK_NON_ELF;
}
- return (struct bfd_hash_entry *) ret;
+ return entry;
}
/* Copy data from an indirect symbol to its direct symbol, hiding the
- old indirect symbol. */
+ old indirect symbol. Also used for copying flags to a weakdef. */
void
_bfd_elf_link_hash_copy_indirect (dir, ind)
struct elf_link_hash_entry *dir, *ind;
{
+ bfd_signed_vma tmp;
+
/* Copy down any references that we may have already seen to the
symbol which just became indirect. */
| ELF_LINK_HASH_REF_REGULAR_NONWEAK
| ELF_LINK_NON_GOT_REF));
- /* Copy over the global and procedure linkage table offset entries.
+ if (ind->root.type != bfd_link_hash_indirect)
+ return;
+
+ /* Copy over the global and procedure linkage table refcount entries.
These may have been already set up by a check_relocs routine. */
- if (dir->got.offset == (bfd_vma) -1)
+ tmp = dir->got.refcount;
+ if (tmp <= 0)
{
- dir->got.offset = ind->got.offset;
- ind->got.offset = (bfd_vma) -1;
+ dir->got.refcount = ind->got.refcount;
+ ind->got.refcount = tmp;
}
- BFD_ASSERT (ind->got.offset == (bfd_vma) -1);
+ else
+ BFD_ASSERT (ind->got.refcount <= 0);
- if (dir->plt.offset == (bfd_vma) -1)
+ tmp = dir->plt.refcount;
+ if (tmp <= 0)
{
- dir->plt.offset = ind->plt.offset;
- ind->plt.offset = (bfd_vma) -1;
+ dir->plt.refcount = ind->plt.refcount;
+ ind->plt.refcount = tmp;
}
- BFD_ASSERT (ind->plt.offset == (bfd_vma) -1);
+ else
+ BFD_ASSERT (ind->plt.refcount <= 0);
if (dir->dynindx == -1)
{
ind->dynindx = -1;
ind->dynstr_index = 0;
}
- BFD_ASSERT (ind->dynindx == -1);
+ else
+ BFD_ASSERT (ind->dynindx == -1);
}
void
-_bfd_elf_link_hash_hide_symbol (info, h)
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
+_bfd_elf_link_hash_hide_symbol (info, h, force_local)
+ struct bfd_link_info *info;
struct elf_link_hash_entry *h;
+ boolean force_local;
{
- h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
- h->dynindx = -1;
h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ if (force_local)
+ {
+ h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
+ if (h->dynindx != -1)
+ {
+ h->dynindx = -1;
+ _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
+ h->dynstr_index);
+ }
+ }
}
/* Initialize an ELF linker hash table. */
struct bfd_hash_table *,
const char *));
{
+ boolean ret;
+
table->dynamic_sections_created = false;
table->dynobj = NULL;
+ table->init_refcount = get_elf_backend_data (abfd)->can_refcount - 1;
/* The first dynamic symbol is a dummy. */
table->dynsymcount = 1;
table->dynstr = NULL;
table->bucketcount = 0;
table->needed = NULL;
table->runpath = NULL;
+ table->loaded = NULL;
table->hgot = NULL;
table->stab_info = NULL;
+ table->merge_info = NULL;
table->dynlocal = NULL;
- return _bfd_link_hash_table_init (&table->root, abfd, newfunc);
+ ret = _bfd_link_hash_table_init (& table->root, abfd, newfunc);
+ table->root.type = bfd_link_elf_hash_table;
+
+ return ret;
}
/* Create an ELF linker hash table. */
bfd *abfd;
{
struct elf_link_hash_table *ret;
+ bfd_size_type amt = sizeof (struct elf_link_hash_table);
- ret = ((struct elf_link_hash_table *)
- bfd_alloc (abfd, sizeof (struct elf_link_hash_table)));
+ ret = (struct elf_link_hash_table *) bfd_malloc (amt);
if (ret == (struct elf_link_hash_table *) NULL)
return NULL;
if (! _bfd_elf_link_hash_table_init (ret, abfd, _bfd_elf_link_hash_newfunc))
{
- bfd_release (abfd, ret);
+ free (ret);
return NULL;
}
asection *s;
bfd_byte *dynbuf = NULL;
int elfsec;
- unsigned long link;
+ unsigned long shlink;
bfd_byte *extdyn, *extdynend;
size_t extdynsize;
void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
if (elfsec == -1)
goto error_return;
- link = elf_elfsections (abfd)[elfsec]->sh_link;
+ shlink = elf_elfsections (abfd)[elfsec]->sh_link;
extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
{
const char *string;
struct bfd_link_needed_list *l;
+ unsigned int tagv = dyn.d_un.d_val;
+ bfd_size_type amt;
- string = bfd_elf_string_from_elf_section (abfd, link,
- dyn.d_un.d_val);
+ string = bfd_elf_string_from_elf_section (abfd, shlink, tagv);
if (string == NULL)
goto error_return;
- l = (struct bfd_link_needed_list *) bfd_alloc (abfd, sizeof *l);
+ amt = sizeof *l;
+ l = (struct bfd_link_needed_list *) bfd_alloc (abfd, amt);
if (l == NULL)
goto error_return;
Elf_Internal_Shdr *hdr = elf_elfsections (abfd)[shindex];
Elf_Internal_Ehdr *ehdr = elf_elfheader (abfd);
struct elf_backend_data *bed = get_elf_backend_data (abfd);
- char *name;
+ const char *name;
name = elf_string_from_elf_strtab (abfd, hdr->sh_name);
case SHT_NOBITS: /* .bss section. */
case SHT_HASH: /* .hash section. */
case SHT_NOTE: /* .note section. */
+ case SHT_INIT_ARRAY: /* .init_array section. */
+ case SHT_FINI_ARRAY: /* .fini_array section. */
+ case SHT_PREINIT_ARRAY: /* .preinit_array section. */
return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
case SHT_SYMTAB: /* A symbol table */
section, so that objcopy can handle it. */
return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
+ case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections */
+ if (elf_symtab_shndx (abfd) == shindex)
+ return true;
+
+ /* Get the associated symbol table. */
+ if (! bfd_section_from_shdr (abfd, hdr->sh_link)
+ || hdr->sh_link != elf_onesymtab (abfd))
+ return false;
+
+ elf_symtab_shndx (abfd) = shindex;
+ elf_tdata (abfd)->symtab_shndx_hdr = *hdr;
+ elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr;
+ return true;
+
case SHT_STRTAB: /* A string table */
if (hdr->bfd_section != NULL)
return true;
return true;
}
{
- unsigned int i;
+ unsigned int i, num_sec;
- for (i = 1; i < ehdr->e_shnum; i++)
+ num_sec = elf_numsections (abfd);
+ for (i = 1; i < num_sec; i++)
{
Elf_Internal_Shdr *hdr2 = elf_elfsections (abfd)[i];
if (hdr2->sh_link == shindex)
{
asection *target_sect;
Elf_Internal_Shdr *hdr2;
+ unsigned int num_sec = elf_numsections (abfd);
/* Check for a bogus link to avoid crashing. */
- if (hdr->sh_link >= ehdr->e_shnum)
+ if ((hdr->sh_link >= SHN_LORESERVE && hdr->sh_link <= SHN_HIRESERVE)
+ || hdr->sh_link >= num_sec)
{
((*_bfd_error_handler)
(_("%s: invalid link %lu for reloc section %s (index %u)"),
- bfd_get_filename (abfd), hdr->sh_link, name, shindex));
+ bfd_archive_filename (abfd), hdr->sh_link, name, shindex));
return _bfd_elf_make_section_from_shdr (abfd, hdr, name);
}
if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_SYMTAB
&& elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_DYNSYM)
{
- int scan;
+ unsigned int scan;
int found;
found = 0;
- for (scan = 1; scan < ehdr->e_shnum; scan++)
+ for (scan = 1; scan < num_sec; scan++)
{
if (elf_elfsections (abfd)[scan]->sh_type == SHT_SYMTAB
|| elf_elfsections (abfd)[scan]->sh_type == SHT_DYNSYM)
hdr2 = &elf_section_data (target_sect)->rel_hdr;
else
{
+ bfd_size_type amt;
BFD_ASSERT (elf_section_data (target_sect)->rel_hdr2 == NULL);
- hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, sizeof (*hdr2));
+ amt = sizeof (*hdr2);
+ hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt);
elf_section_data (target_sect)->rel_hdr2 = hdr2;
}
*hdr2 = *hdr;
elf_elfsections (abfd)[shindex] = hdr2;
- target_sect->reloc_count += hdr->sh_size / hdr->sh_entsize;
+ target_sect->reloc_count += NUM_SHDR_ENTRIES (hdr);
target_sect->flags |= SEC_RELOC;
target_sect->relocation = NULL;
target_sect->rel_filepos = hdr->sh_offset;
case SHT_SHLIB:
return true;
+ case SHT_GROUP:
+ /* We need a BFD section for objcopy and relocatable linking,
+ and it's handy to have the signature available as the section
+ name. */
+ name = group_signature (abfd, hdr);
+ if (name == NULL)
+ return false;
+ if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name))
+ return false;
+ if (hdr->contents != NULL)
+ {
+ Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents;
+ unsigned int n_elt = hdr->sh_size / 4;
+ asection *s;
+
+ if (idx->flags & GRP_COMDAT)
+ hdr->bfd_section->flags
+ |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
+
+ while (--n_elt != 0)
+ if ((s = (++idx)->shdr->bfd_section) != NULL
+ && elf_next_in_group (s) != NULL)
+ {
+ elf_next_in_group (hdr->bfd_section) = s;
+ break;
+ }
+ }
+ break;
+
default:
/* Check for any processor-specific section types. */
{
return true;
}
+/* Return the section for the local symbol specified by ABFD, R_SYMNDX.
+ Return SEC for sections that have no elf section, and NULL on error. */
+
+asection *
+bfd_section_from_r_symndx (abfd, cache, sec, r_symndx)
+ bfd *abfd;
+ struct sym_sec_cache *cache;
+ asection *sec;
+ unsigned long r_symndx;
+{
+ unsigned char esym_shndx[4];
+ unsigned int isym_shndx;
+ Elf_Internal_Shdr *symtab_hdr;
+ file_ptr pos;
+ bfd_size_type amt;
+ unsigned int ent = r_symndx % LOCAL_SYM_CACHE_SIZE;
+
+ if (cache->abfd == abfd && cache->indx[ent] == r_symndx)
+ return cache->sec[ent];
+
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ pos = symtab_hdr->sh_offset;
+ if (get_elf_backend_data (abfd)->s->sizeof_sym
+ == sizeof (Elf64_External_Sym))
+ {
+ pos += r_symndx * sizeof (Elf64_External_Sym);
+ pos += offsetof (Elf64_External_Sym, st_shndx);
+ amt = sizeof (((Elf64_External_Sym *) 0)->st_shndx);
+ }
+ else
+ {
+ pos += r_symndx * sizeof (Elf32_External_Sym);
+ pos += offsetof (Elf32_External_Sym, st_shndx);
+ amt = sizeof (((Elf32_External_Sym *) 0)->st_shndx);
+ }
+ if (bfd_seek (abfd, pos, SEEK_SET) != 0
+ || bfd_bread ((PTR) esym_shndx, amt, abfd) != amt)
+ return NULL;
+ isym_shndx = H_GET_16 (abfd, esym_shndx);
+
+ if (isym_shndx == SHN_XINDEX)
+ {
+ Elf_Internal_Shdr *shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+ if (shndx_hdr->sh_size != 0)
+ {
+ pos = shndx_hdr->sh_offset;
+ pos += r_symndx * sizeof (Elf_External_Sym_Shndx);
+ amt = sizeof (Elf_External_Sym_Shndx);
+ if (bfd_seek (abfd, pos, SEEK_SET) != 0
+ || bfd_bread ((PTR) esym_shndx, amt, abfd) != amt)
+ return NULL;
+ isym_shndx = H_GET_32 (abfd, esym_shndx);
+ }
+ }
+
+ if (cache->abfd != abfd)
+ {
+ memset (cache->indx, -1, sizeof (cache->indx));
+ cache->abfd = abfd;
+ }
+ cache->indx[ent] = r_symndx;
+ cache->sec[ent] = sec;
+ if (isym_shndx < SHN_LORESERVE || isym_shndx > SHN_HIRESERVE)
+ {
+ asection *s;
+ s = bfd_section_from_elf_index (abfd, isym_shndx);
+ if (s != NULL)
+ cache->sec[ent] = s;
+ }
+ return cache->sec[ent];
+}
+
/* Given an ELF section number, retrieve the corresponding BFD
section. */
bfd *abfd;
unsigned int index;
{
- BFD_ASSERT (index > 0 && index < SHN_LORESERVE);
- if (index >= elf_elfheader (abfd)->e_shnum)
+ if (index >= elf_numsections (abfd))
return NULL;
return elf_elfsections (abfd)[index]->bfd_section;
}
asection *sec;
{
struct bfd_elf_section_data *sdata;
+ bfd_size_type amt = sizeof (*sdata);
- sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, sizeof (*sdata));
+ sdata = (struct bfd_elf_section_data *) bfd_zalloc (abfd, amt);
if (!sdata)
return false;
sec->used_by_bfd = (PTR) sdata;
asection *newsect;
char *name;
char namebuf[64];
+ size_t len;
int split;
split = ((hdr->p_memsz > 0)
&& (hdr->p_filesz > 0)
&& (hdr->p_memsz > hdr->p_filesz));
sprintf (namebuf, "%s%d%s", typename, index, split ? "a" : "");
- name = bfd_alloc (abfd, strlen (namebuf) + 1);
+ len = strlen (namebuf) + 1;
+ name = bfd_alloc (abfd, (bfd_size_type) len);
if (!name)
return false;
- strcpy (name, namebuf);
+ memcpy (name, namebuf, len);
newsect = bfd_make_section (abfd, name);
if (newsect == NULL)
return false;
if (split)
{
sprintf (namebuf, "%s%db", typename, index);
- name = bfd_alloc (abfd, strlen (namebuf) + 1);
+ len = strlen (namebuf) + 1;
+ name = bfd_alloc (abfd, (bfd_size_type) len);
if (!name)
return false;
- strcpy (name, namebuf);
+ memcpy (name, namebuf, len);
newsect = bfd_make_section (abfd, name);
if (newsect == NULL)
return false;
case PT_NOTE:
if (! _bfd_elf_make_section_from_phdr (abfd, hdr, index, "note"))
return false;
- if (! elfcore_read_notes (abfd, hdr->p_offset, hdr->p_filesz))
+ if (! elfcore_read_notes (abfd, (file_ptr) hdr->p_offset, hdr->p_filesz))
return false;
return true;
boolean use_rela_p;
{
char *name;
- struct elf_backend_data *bed;
+ struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ bfd_size_type amt = sizeof ".rela" + strlen (asect->name);
- bed = get_elf_backend_data (abfd);
- name = bfd_alloc (abfd, sizeof ".rela" + strlen (asect->name));
+ name = bfd_alloc (abfd, amt);
if (name == NULL)
return false;
sprintf (name, "%s%s", use_rela_p ? ".rela" : ".rel", asect->name);
rel_hdr->sh_name =
- (unsigned int) _bfd_stringtab_add (elf_shstrtab (abfd), name,
- true, false);
+ (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd), name,
+ false);
if (rel_hdr->sh_name == (unsigned int) -1)
return false;
rel_hdr->sh_type = use_rela_p ? SHT_RELA : SHT_REL;
this_hdr = &elf_section_data (asect)->this_hdr;
- this_hdr->sh_name = (unsigned long) _bfd_stringtab_add (elf_shstrtab (abfd),
- asect->name,
- true, false);
+ this_hdr->sh_name = (unsigned long) _bfd_elf_strtab_add (elf_shstrtab (abfd),
+ asect->name, false);
if (this_hdr->sh_name == (unsigned long) -1)
{
*failedptr = true;
this_hdr->sh_type = SHT_REL;
this_hdr->sh_entsize = bed->s->sizeof_rel;
}
+ else if (strcmp (asect->name, ".init_array") == 0)
+ this_hdr->sh_type = SHT_INIT_ARRAY;
+ else if (strcmp (asect->name, ".fini_array") == 0)
+ this_hdr->sh_type = SHT_FINI_ARRAY;
+ else if (strcmp (asect->name, ".preinit_array") == 0)
+ this_hdr->sh_type = SHT_PREINIT_ARRAY;
else if (strncmp (asect->name, ".note", 5) == 0)
this_hdr->sh_type = SHT_NOTE;
else if (strncmp (asect->name, ".stab", 5) == 0
BFD_ASSERT (elf_tdata (abfd)->cverrefs == 0
|| this_hdr->sh_info == elf_tdata (abfd)->cverrefs);
}
+ else if ((asect->flags & SEC_GROUP) != 0)
+ {
+ this_hdr->sh_type = SHT_GROUP;
+ this_hdr->sh_entsize = 4;
+ }
else if ((asect->flags & SEC_ALLOC) != 0
- && ((asect->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0))
+ && (((asect->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
+ || (asect->flags & SEC_NEVER_LOAD) != 0))
this_hdr->sh_type = SHT_NOBITS;
else
this_hdr->sh_type = SHT_PROGBITS;
this_hdr->sh_flags |= SHF_WRITE;
if ((asect->flags & SEC_CODE) != 0)
this_hdr->sh_flags |= SHF_EXECINSTR;
+ if ((asect->flags & SEC_MERGE) != 0)
+ {
+ this_hdr->sh_flags |= SHF_MERGE;
+ this_hdr->sh_entsize = asect->entsize;
+ if ((asect->flags & SEC_STRINGS) != 0)
+ this_hdr->sh_flags |= SHF_STRINGS;
+ }
+ if ((asect->flags & SEC_GROUP) == 0 && elf_group_name (asect) != NULL)
+ this_hdr->sh_flags |= SHF_GROUP;
+ if ((asect->flags & SEC_THREAD_LOCAL) != 0)
+ this_hdr->sh_flags |= SHF_TLS;
/* Check for processor-specific section types. */
- if (bed->elf_backend_fake_sections)
- (*bed->elf_backend_fake_sections) (abfd, this_hdr, asect);
+ if (bed->elf_backend_fake_sections
+ && !(*bed->elf_backend_fake_sections) (abfd, this_hdr, asect))
+ *failedptr = true;
/* If the section has relocs, set up a section header for the
SHT_REL[A] section. If two relocation sections are required for
*failedptr = true;
}
+/* Fill in the contents of a SHT_GROUP section. */
+
+void
+bfd_elf_set_group_contents (abfd, sec, failedptrarg)
+ bfd *abfd;
+ asection *sec;
+ PTR failedptrarg;
+{
+ boolean *failedptr = (boolean *) failedptrarg;
+ unsigned long symindx;
+ asection *elt, *first;
+ unsigned char *loc;
+ struct bfd_link_order *l;
+ boolean gas;
+
+ if (elf_section_data (sec)->this_hdr.sh_type != SHT_GROUP
+ || *failedptr)
+ return;
+
+ symindx = 0;
+ if (elf_group_id (sec) != NULL)
+ symindx = elf_group_id (sec)->udata.i;
+
+ if (symindx == 0)
+ {
+ /* If called from the assembler, swap_out_syms will have set up
+ elf_section_syms; If called for "ld -r", use target_index. */
+ if (elf_section_syms (abfd) != NULL)
+ symindx = elf_section_syms (abfd)[sec->index]->udata.i;
+ else
+ symindx = sec->target_index;
+ }
+ elf_section_data (sec)->this_hdr.sh_info = symindx;
+
+ /* The contents won't be allocated for "ld -r" or objcopy. */
+ gas = true;
+ if (sec->contents == NULL)
+ {
+ gas = false;
+ sec->contents = bfd_alloc (abfd, sec->_raw_size);
+
+ /* Arrange for the section to be written out. */
+ elf_section_data (sec)->this_hdr.contents = sec->contents;
+ if (sec->contents == NULL)
+ {
+ *failedptr = true;
+ return;
+ }
+ }
+
+ loc = sec->contents + sec->_raw_size;
+
+ /* Get the pointer to the first section in the group that gas
+ squirreled away here. objcopy arranges for this to be set to the
+ start of the input section group. */
+ first = elt = elf_next_in_group (sec);
+
+ /* First element is a flag word. Rest of section is elf section
+ indices for all the sections of the group. Write them backwards
+ just to keep the group in the same order as given in .section
+ directives, not that it matters. */
+ while (elt != NULL)
+ {
+ asection *s;
+ unsigned int idx;
+
+ loc -= 4;
+ s = elt;
+ if (!gas)
+ s = s->output_section;
+ idx = 0;
+ if (s != NULL)
+ idx = elf_section_data (s)->this_idx;
+ H_PUT_32 (abfd, idx, loc);
+ elt = elf_next_in_group (elt);
+ if (elt == first)
+ break;
+ }
+
+ /* If this is a relocatable link, then the above did nothing because
+ SEC is the output section. Look through the input sections
+ instead. */
+ for (l = sec->link_order_head; l != NULL; l = l->next)
+ if (l->type == bfd_indirect_link_order
+ && (elt = elf_next_in_group (l->u.indirect.section)) != NULL)
+ do
+ {
+ loc -= 4;
+ H_PUT_32 (abfd,
+ elf_section_data (elt->output_section)->this_idx, loc);
+ elt = elf_next_in_group (elt);
+ /* During a relocatable link, the lists are circular. */
+ }
+ while (elt != elf_next_in_group (l->u.indirect.section));
+
+ /* With ld -r, merging SHT_GROUP sections results in wasted space
+ due to allowing for the flag word on each input. We may well
+ duplicate entries too. */
+ while ((loc -= 4) > sec->contents)
+ H_PUT_32 (abfd, 0, loc);
+
+ if (loc != sec->contents)
+ abort ();
+
+ H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc);
+}
+
/* Assign all ELF section numbers. The dummy first section is handled here
too. The link/info pointers for the standard section types are filled
in here too, while we're at it. */
{
struct elf_obj_tdata *t = elf_tdata (abfd);
asection *sec;
- unsigned int section_number;
+ unsigned int section_number, secn;
Elf_Internal_Shdr **i_shdrp;
+ bfd_size_type amt;
section_number = 1;
+ _bfd_elf_strtab_clear_all_refs (elf_shstrtab (abfd));
+
for (sec = abfd->sections; sec; sec = sec->next)
{
struct bfd_elf_section_data *d = elf_section_data (sec);
+ if (section_number == SHN_LORESERVE)
+ section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
d->this_idx = section_number++;
+ _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->this_hdr.sh_name);
if ((sec->flags & SEC_RELOC) == 0)
d->rel_idx = 0;
else
- d->rel_idx = section_number++;
+ {
+ if (section_number == SHN_LORESERVE)
+ section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
+ d->rel_idx = section_number++;
+ _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel_hdr.sh_name);
+ }
if (d->rel_hdr2)
- d->rel_idx2 = section_number++;
+ {
+ if (section_number == SHN_LORESERVE)
+ section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
+ d->rel_idx2 = section_number++;
+ _bfd_elf_strtab_addref (elf_shstrtab (abfd), d->rel_hdr2->sh_name);
+ }
else
d->rel_idx2 = 0;
}
+ if (section_number == SHN_LORESERVE)
+ section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
t->shstrtab_section = section_number++;
+ _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->shstrtab_hdr.sh_name);
elf_elfheader (abfd)->e_shstrndx = t->shstrtab_section;
- t->shstrtab_hdr.sh_size = _bfd_stringtab_size (elf_shstrtab (abfd));
if (bfd_get_symcount (abfd) > 0)
{
+ if (section_number == SHN_LORESERVE)
+ section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
t->symtab_section = section_number++;
+ _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->symtab_hdr.sh_name);
+ if (section_number > SHN_LORESERVE - 2)
+ {
+ if (section_number == SHN_LORESERVE)
+ section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
+ t->symtab_shndx_section = section_number++;
+ t->symtab_shndx_hdr.sh_name
+ = (unsigned int) _bfd_elf_strtab_add (elf_shstrtab (abfd),
+ ".symtab_shndx", false);
+ if (t->symtab_shndx_hdr.sh_name == (unsigned int) -1)
+ return false;
+ }
+ if (section_number == SHN_LORESERVE)
+ section_number += SHN_HIRESERVE + 1 - SHN_LORESERVE;
t->strtab_section = section_number++;
+ _bfd_elf_strtab_addref (elf_shstrtab (abfd), t->strtab_hdr.sh_name);
}
+ _bfd_elf_strtab_finalize (elf_shstrtab (abfd));
+ t->shstrtab_hdr.sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd));
+
+ elf_numsections (abfd) = section_number;
elf_elfheader (abfd)->e_shnum = section_number;
+ if (section_number > SHN_LORESERVE)
+ elf_elfheader (abfd)->e_shnum -= SHN_HIRESERVE + 1 - SHN_LORESERVE;
/* Set up the list of section header pointers, in agreement with the
indices. */
- i_shdrp = ((Elf_Internal_Shdr **)
- bfd_alloc (abfd, section_number * sizeof (Elf_Internal_Shdr *)));
+ amt = section_number * sizeof (Elf_Internal_Shdr *);
+ i_shdrp = (Elf_Internal_Shdr **) bfd_alloc (abfd, amt);
if (i_shdrp == NULL)
return false;
- i_shdrp[0] = ((Elf_Internal_Shdr *)
- bfd_alloc (abfd, sizeof (Elf_Internal_Shdr)));
+ amt = sizeof (Elf_Internal_Shdr);
+ i_shdrp[0] = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt);
if (i_shdrp[0] == NULL)
{
bfd_release (abfd, i_shdrp);
if (bfd_get_symcount (abfd) > 0)
{
i_shdrp[t->symtab_section] = &t->symtab_hdr;
+ if (elf_numsections (abfd) > SHN_LORESERVE)
+ {
+ i_shdrp[t->symtab_shndx_section] = &t->symtab_shndx_hdr;
+ t->symtab_shndx_hdr.sh_link = t->symtab_section;
+ }
i_shdrp[t->strtab_section] = &t->strtab_hdr;
t->symtab_hdr.sh_link = t->strtab_section;
}
char *alc;
len = strlen (sec->name);
- alc = (char *) bfd_malloc (len - 2);
+ alc = (char *) bfd_malloc ((bfd_size_type) (len - 2));
if (alc == NULL)
return false;
- strncpy (alc, sec->name, len - 3);
+ memcpy (alc, sec->name, len - 3);
alc[len - 3] = '\0';
s = bfd_get_section_by_name (abfd, alc);
free (alc);
if (s != NULL)
d->this_hdr.sh_link = elf_section_data (s)->this_idx;
break;
+
+ case SHT_GROUP:
+ d->this_hdr.sh_link = t->symtab_section;
}
}
+ for (secn = 1; secn < section_number; ++secn)
+ if (i_shdrp[secn] == NULL)
+ i_shdrp[secn] = i_shdrp[0];
+ else
+ i_shdrp[secn]->sh_name = _bfd_elf_strtab_offset (elf_shstrtab (abfd),
+ i_shdrp[secn]->sh_name);
return true;
}
elf_map_symbols (abfd)
bfd *abfd;
{
- int symcount = bfd_get_symcount (abfd);
+ unsigned int symcount = bfd_get_symcount (abfd);
asymbol **syms = bfd_get_outsymbols (abfd);
asymbol **sect_syms;
- int num_locals = 0;
- int num_globals = 0;
- int num_locals2 = 0;
- int num_globals2 = 0;
+ unsigned int num_locals = 0;
+ unsigned int num_globals = 0;
+ unsigned int num_locals2 = 0;
+ unsigned int num_globals2 = 0;
int max_index = 0;
- int num_sections = 0;
- int idx;
+ unsigned int idx;
asection *asect;
asymbol **new_syms;
- asymbol *sym;
+ bfd_size_type amt;
#ifdef DEBUG
fprintf (stderr, "elf_map_symbols\n");
fflush (stderr);
#endif
- /* Add a section symbol for each BFD section. FIXME: Is this really
- necessary? */
for (asect = abfd->sections; asect; asect = asect->next)
{
if (max_index < asect->index)
}
max_index++;
- sect_syms = (asymbol **) bfd_zalloc (abfd, max_index * sizeof (asymbol *));
+ amt = max_index * sizeof (asymbol *);
+ sect_syms = (asymbol **) bfd_zalloc (abfd, amt);
if (sect_syms == NULL)
return false;
elf_section_syms (abfd) = sect_syms;
+ elf_num_section_syms (abfd) = max_index;
+ /* Init sect_syms entries for any section symbols we have already
+ decided to output. */
for (idx = 0; idx < symcount; idx++)
{
- sym = syms[idx];
+ asymbol *sym = syms[idx];
if ((sym->flags & BSF_SECTION_SYM) != 0
&& sym->value == 0)
sec = sec->output_section;
- /* Empty sections in the input files may have had a section
- symbol created for them. (See the comment near the end of
- _bfd_generic_link_output_symbols in linker.c). If the linker
- script discards such sections then we will reach this point.
- Since we know that we cannot avoid this case, we detect it
- and skip the abort and the assignment to the sect_syms array.
- To reproduce this particular case try running the linker
- testsuite test ld-scripts/weak.exp for an ELF port that uses
- the generic linker. */
+ /* Empty sections in the input files may have had a
+ section symbol created for them. (See the comment
+ near the end of _bfd_generic_link_output_symbols in
+ linker.c). If the linker script discards such
+ sections then we will reach this point. Since we know
+ that we cannot avoid this case, we detect it and skip
+ the abort and the assignment to the sect_syms array.
+ To reproduce this particular case try running the
+ linker testsuite test ld-scripts/weak.exp for an ELF
+ port that uses the generic linker. */
if (sec->owner == NULL)
continue;
}
}
- for (asect = abfd->sections; asect; asect = asect->next)
- {
- if (sect_syms[asect->index] != NULL)
- continue;
-
- sym = bfd_make_empty_symbol (abfd);
- if (sym == NULL)
- return false;
- sym->the_bfd = abfd;
- sym->name = asect->name;
- sym->value = 0;
- /* Set the flags to 0 to indicate that this one was newly added. */
- sym->flags = 0;
- sym->section = asect;
- sect_syms[asect->index] = sym;
- num_sections++;
-#ifdef DEBUG
- fprintf (stderr,
- _("creating section symbol, name = %s, value = 0x%.8lx, index = %d, section = 0x%.8lx\n"),
- asect->name, (long) asect->vma, asect->index, (long) asect);
-#endif
- }
-
- /* Classify all of the symbols. */
- for (idx = 0; idx < symcount; idx++)
+ /* Classify all of the symbols. */
+ for (idx = 0; idx < symcount; idx++)
{
if (!sym_is_global (abfd, syms[idx]))
num_locals++;
else
num_globals++;
}
+
+ /* We will be adding a section symbol for each BFD section. Most normal
+ sections will already have a section symbol in outsymbols, but
+ eg. SHT_GROUP sections will not, and we need the section symbol mapped
+ at least in that case. */
for (asect = abfd->sections; asect; asect = asect->next)
{
- if (sect_syms[asect->index] != NULL
- && sect_syms[asect->index]->flags == 0)
+ if (sect_syms[asect->index] == NULL)
{
- sect_syms[asect->index]->flags = BSF_SECTION_SYM;
- if (!sym_is_global (abfd, sect_syms[asect->index]))
+ if (!sym_is_global (abfd, asect->symbol))
num_locals++;
else
num_globals++;
- sect_syms[asect->index]->flags = 0;
}
}
/* Now sort the symbols so the local symbols are first. */
- new_syms = ((asymbol **)
- bfd_alloc (abfd,
- (num_locals + num_globals) * sizeof (asymbol *)));
+ amt = (num_locals + num_globals) * sizeof (asymbol *);
+ new_syms = (asymbol **) bfd_alloc (abfd, amt);
+
if (new_syms == NULL)
return false;
for (idx = 0; idx < symcount; idx++)
{
asymbol *sym = syms[idx];
- int i;
+ unsigned int i;
if (!sym_is_global (abfd, sym))
i = num_locals2++;
}
for (asect = abfd->sections; asect; asect = asect->next)
{
- if (sect_syms[asect->index] != NULL
- && sect_syms[asect->index]->flags == 0)
+ if (sect_syms[asect->index] == NULL)
{
- asymbol *sym = sect_syms[asect->index];
- int i;
+ asymbol *sym = asect->symbol;
+ unsigned int i;
- sym->flags = BSF_SECTION_SYM;
+ sect_syms[asect->index] = sym;
if (!sym_is_global (abfd, sym))
i = num_locals2++;
else
return false;
}
+ if (link_info == NULL)
+ {
+ bfd_map_over_sections (abfd, bfd_elf_set_group_contents, &failed);
+ if (failed)
+ return false;
+ }
+
shstrtab_hdr = &elf_tdata (abfd)->shstrtab_hdr;
/* sh_name was set in prep_headers. */
shstrtab_hdr->sh_type = SHT_STRTAB;
shstrtab_hdr->sh_flags = 0;
shstrtab_hdr->sh_addr = 0;
- shstrtab_hdr->sh_size = _bfd_stringtab_size (elf_shstrtab (abfd));
+ shstrtab_hdr->sh_size = _bfd_elf_strtab_size (elf_shstrtab (abfd));
shstrtab_hdr->sh_entsize = 0;
shstrtab_hdr->sh_link = 0;
shstrtab_hdr->sh_info = 0;
hdr = &elf_tdata (abfd)->symtab_hdr;
off = _bfd_elf_assign_file_position_for_section (hdr, off, true);
+ hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+ if (hdr->sh_size != 0)
+ off = _bfd_elf_assign_file_position_for_section (hdr, off, true);
+
hdr = &elf_tdata (abfd)->strtab_hdr;
off = _bfd_elf_assign_file_position_for_section (hdr, off, true);
struct elf_segment_map *m;
unsigned int i;
asection **hdrpp;
+ bfd_size_type amt;
- m = ((struct elf_segment_map *)
- bfd_zalloc (abfd,
- (sizeof (struct elf_segment_map)
- + (to - from - 1) * sizeof (asection *))));
+ amt = sizeof (struct elf_segment_map);
+ amt += (to - from - 1) * sizeof (asection *);
+ m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
if (m == NULL)
return NULL;
m->next = NULL;
asection **hdrpp;
boolean phdr_in_segment = true;
boolean writable;
- asection *dynsec;
+ int tls_count = 0;
+ asection *first_tls = NULL;
+ asection *dynsec, *eh_frame_hdr;
+ bfd_size_type amt;
if (elf_tdata (abfd)->segment_map != NULL)
return true;
/* Select the allocated sections, and sort them. */
- sections = (asection **) bfd_malloc (bfd_count_sections (abfd)
- * sizeof (asection *));
+ amt = bfd_count_sections (abfd) * sizeof (asection *);
+ sections = (asection **) bfd_malloc (amt);
if (sections == NULL)
goto error_return;
s = bfd_get_section_by_name (abfd, ".interp");
if (s != NULL && (s->flags & SEC_LOAD) != 0)
{
- m = ((struct elf_segment_map *)
- bfd_zalloc (abfd, sizeof (struct elf_segment_map)));
+ amt = sizeof (struct elf_segment_map);
+ m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
if (m == NULL)
goto error_return;
m->next = NULL;
*pm = m;
pm = &m->next;
- m = ((struct elf_segment_map *)
- bfd_zalloc (abfd, sizeof (struct elf_segment_map)));
+ amt = sizeof (struct elf_segment_map);
+ m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
if (m == NULL)
goto error_return;
m->next = NULL;
/* If there is a .dynamic section, throw in a PT_DYNAMIC segment. */
if (dynsec != NULL)
{
- m = ((struct elf_segment_map *)
- bfd_zalloc (abfd, sizeof (struct elf_segment_map)));
+ amt = sizeof (struct elf_segment_map);
+ m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
if (m == NULL)
goto error_return;
m->next = NULL;
if ((s->flags & SEC_LOAD) != 0
&& strncmp (s->name, ".note", 5) == 0)
{
- m = ((struct elf_segment_map *)
- bfd_zalloc (abfd, sizeof (struct elf_segment_map)));
+ amt = sizeof (struct elf_segment_map);
+ m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
if (m == NULL)
goto error_return;
m->next = NULL;
*pm = m;
pm = &m->next;
}
+ if (s->flags & SEC_THREAD_LOCAL)
+ {
+ if (! tls_count)
+ first_tls = s;
+ tls_count++;
+ }
+ }
+
+ /* If there are any SHF_TLS output sections, add PT_TLS segment. */
+ if (tls_count > 0)
+ {
+ int i;
+
+ amt = sizeof (struct elf_segment_map);
+ amt += (tls_count - 1) * sizeof (asection *);
+ m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
+ if (m == NULL)
+ goto error_return;
+ m->next = NULL;
+ m->p_type = PT_TLS;
+ m->count = tls_count;
+ /* Mandated PF_R. */
+ m->p_flags = PF_R;
+ m->p_flags_valid = 1;
+ for (i = 0; i < tls_count; ++i)
+ {
+ BFD_ASSERT (first_tls->flags & SEC_THREAD_LOCAL);
+ m->sections[i] = first_tls;
+ first_tls = first_tls->next;
+ }
+
+ *pm = m;
+ pm = &m->next;
+ }
+
+ /* If there is a .eh_frame_hdr section, throw in a PT_GNU_EH_FRAME
+ segment. */
+ eh_frame_hdr = NULL;
+ if (elf_tdata (abfd)->eh_frame_hdr)
+ eh_frame_hdr = bfd_get_section_by_name (abfd, ".eh_frame_hdr");
+ if (eh_frame_hdr != NULL && (eh_frame_hdr->flags & SEC_LOAD))
+ {
+ amt = sizeof (struct elf_segment_map);
+ m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
+ if (m == NULL)
+ goto error_return;
+ m->next = NULL;
+ m->p_type = PT_GNU_EH_FRAME;
+ m->count = 1;
+ m->sections[0] = eh_frame_hdr;
+
+ *pm = m;
+ pm = &m->next;
}
free (sections);
if (TOEND (sec1))
{
if (TOEND (sec2))
- return sec1->target_index - sec2->target_index;
+ {
+ /* If the indicies are the same, do not return 0
+ here, but continue to try the next comparison. */
+ if (sec1->target_index - sec2->target_index != 0)
+ return sec1->target_index - sec2->target_index;
+ }
else
return 1;
}
-
- if (TOEND (sec2))
+ else if (TOEND (sec2))
return -1;
#undef TOEND
- /* Sort by size, to put zero sized sections before others at the
- same address. */
+ /* Sort by size, to put zero sized sections
+ before others at the same address. */
if (sec1->_raw_size < sec2->_raw_size)
return -1;
bfd_vma filehdr_vaddr, filehdr_paddr;
bfd_vma phdrs_vaddr, phdrs_paddr;
Elf_Internal_Phdr *p;
+ bfd_size_type amt;
if (elf_tdata (abfd)->segment_map == NULL)
{
if (! map_sections_to_segments (abfd))
return false;
}
+ else
+ {
+ /* The placement algorithm assumes that non allocated sections are
+ not in PT_LOAD segments. We ensure this here by removing such
+ sections from the segment map. */
+ for (m = elf_tdata (abfd)->segment_map;
+ m != NULL;
+ m = m->next)
+ {
+ unsigned int new_count;
+ unsigned int i;
+
+ if (m->p_type != PT_LOAD)
+ continue;
+
+ new_count = 0;
+ for (i = 0; i < m->count; i ++)
+ {
+ if ((m->sections[i]->flags & SEC_ALLOC) != 0)
+ {
+ if (i != new_count)
+ m->sections[new_count] = m->sections[i];
+
+ new_count ++;
+ }
+ }
+
+ if (new_count != m->count)
+ m->count = new_count;
+ }
+ }
if (bed->elf_backend_modify_segment_map)
{
if (alloc == 0)
alloc = count;
- phdrs = ((Elf_Internal_Phdr *)
- bfd_alloc (abfd, alloc * sizeof (Elf_Internal_Phdr)));
+ amt = alloc * sizeof (Elf_Internal_Phdr);
+ phdrs = (Elf_Internal_Phdr *) bfd_alloc (abfd, amt);
if (phdrs == NULL)
return false;
asection **secpp;
/* If elf_segment_map is not from map_sections_to_segments, the
- sections may not be correctly ordered. */
- if (m->count > 0)
+ sections may not be correctly ordered. NOTE: sorting should
+ not be done to the PT_NOTE section of a corefile, which may
+ contain several pseudo-sections artificially created by bfd.
+ Sorting these pseudo-sections breaks things badly. */
+ if (m->count > 1
+ && !(elf_elfheader (abfd)->e_type == ET_CORE
+ && m->p_type == PT_NOTE))
qsort (m->sections, (size_t) m->count, sizeof (asection *),
elf_sort_sections);
if (p->p_vaddr < (bfd_vma) off)
{
- _bfd_error_handler (_("%s: Not enough room for program headers, try linking with -N"),
- bfd_get_filename (abfd));
+ (*_bfd_error_handler)
+ (_("%s: Not enough room for program headers, try linking with -N"),
+ bfd_get_filename (abfd));
bfd_set_error (bfd_error_bad_value);
return false;
}
/* The section may have artificial alignment forced by a
link script. Notice this case by the gap between the
- cumulative phdr vma and the section's vma. */
- if (p->p_vaddr + p->p_memsz < sec->vma)
+ cumulative phdr lma and the section's lma. */
+ if (p->p_paddr + p->p_memsz < sec->lma)
{
- bfd_vma adjust = sec->vma - (p->p_vaddr + p->p_memsz);
+ bfd_vma adjust = sec->lma - (p->p_paddr + p->p_memsz);
p->p_memsz += adjust;
off += adjust;
{
if (i == 0)
{
- (* _bfd_error_handler)
- (_("Error: First section in segment (%s) starts at 0x%x"),
- bfd_section_name (abfd, sec), sec->lma);
- (* _bfd_error_handler)
- (_(" whereas segment starts at 0x%x"),
- p->p_paddr);
-
+ (* _bfd_error_handler) (_("\
+Error: First section in segment (%s) starts at 0x%x whereas the segment starts at 0x%x"),
+ bfd_section_name (abfd, sec),
+ sec->lma,
+ p->p_paddr);
return false;
}
p->p_memsz += adjust;
if ((flags & SEC_LOAD) != 0)
p->p_filesz += sec->_raw_size;
+ if (p->p_type == PT_TLS
+ && sec->_raw_size == 0
+ && (sec->flags & SEC_HAS_CONTENTS) == 0)
+ {
+ struct bfd_link_order *o;
+ bfd_vma tbss_size = 0;
+
+ for (o = sec->link_order_head; o != NULL; o = o->next)
+ if (tbss_size < o->offset + o->size)
+ tbss_size = o->offset + o->size;
+
+ p->p_memsz += tbss_size;
+ }
+
if (align > p->p_align
&& (p->p_type != PT_LOAD || (abfd->flags & D_PAGED) == 0))
p->p_align = align;
}
}
+ /* If additional nonloadable filepos adjustments are required,
+ do them now. */
+ if (bed->set_nonloadable_filepos)
+ (*bed->set_nonloadable_filepos) (abfd, phdrs);
+
/* Clear out any program headers we allocated but did not use. */
for (; count < alloc; count++, p++)
{
elf_tdata (abfd)->next_file_pos = off;
/* Write out the program headers. */
- if (bfd_seek (abfd, bed->s->sizeof_ehdr, SEEK_SET) != 0
+ if (bfd_seek (abfd, (bfd_signed_vma) bed->s->sizeof_ehdr, SEEK_SET) != 0
|| bed->s->write_out_phdrs (abfd, phdrs, alloc) != 0)
return false;
++segs;
}
+ if (elf_tdata (abfd)->eh_frame_hdr
+ && bfd_get_section_by_name (abfd, ".eh_frame_hdr") != NULL)
+ {
+ /* We need a PT_GNU_EH_FRAME segment. */
+ ++segs;
+ }
+
for (s = abfd->sections; s != NULL; s = s->next)
{
if ((s->flags & SEC_LOAD) != 0
}
}
+ for (s = abfd->sections; s != NULL; s = s->next)
+ {
+ if (s->flags & SEC_THREAD_LOCAL)
+ {
+ /* We need a PT_TLS segment. */
+ ++segs;
+ break;
+ }
+ }
+
/* Let the backend count up any program headers it might need. */
if (bed->elf_backend_additional_program_headers)
{
struct elf_obj_tdata * const tdata = elf_tdata (abfd);
Elf_Internal_Ehdr * const i_ehdrp = elf_elfheader (abfd);
Elf_Internal_Shdr ** const i_shdrpp = elf_elfsections (abfd);
+ unsigned int num_sec = elf_numsections (abfd);
file_ptr off;
struct elf_backend_data *bed = get_elf_backend_data (abfd);
/* We are not creating an executable, which means that we are
not creating a program header, and that the actual order of
the sections in the file is unimportant. */
- for (i = 1, hdrpp = i_shdrpp + 1; i < i_ehdrp->e_shnum; i++, hdrpp++)
+ for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++)
{
Elf_Internal_Shdr *hdr;
hdr = *hdrpp;
- if (hdr->sh_type == SHT_REL || hdr->sh_type == SHT_RELA)
- {
- hdr->sh_offset = -1;
- continue;
- }
- if (i == tdata->symtab_section
+ if (hdr->sh_type == SHT_REL
+ || hdr->sh_type == SHT_RELA
+ || i == tdata->symtab_section
+ || i == tdata->symtab_shndx_section
|| i == tdata->strtab_section)
{
hdr->sh_offset = -1;
- continue;
}
+ else
+ off = _bfd_elf_assign_file_position_for_section (hdr, off, true);
- off = _bfd_elf_assign_file_position_for_section (hdr, off, true);
+ if (i == SHN_LORESERVE - 1)
+ {
+ i += SHN_HIRESERVE + 1 - SHN_LORESERVE;
+ hdrpp += SHN_HIRESERVE + 1 - SHN_LORESERVE;
+ }
}
}
else
/* Assign file positions for the other sections. */
off = elf_tdata (abfd)->next_file_pos;
- for (i = 1, hdrpp = i_shdrpp + 1; i < i_ehdrp->e_shnum; i++, hdrpp++)
+ for (i = 1, hdrpp = i_shdrpp + 1; i < num_sec; i++, hdrpp++)
{
Elf_Internal_Shdr *hdr;
else if (hdr->sh_type == SHT_REL
|| hdr->sh_type == SHT_RELA
|| hdr == i_shdrpp[tdata->symtab_section]
+ || hdr == i_shdrpp[tdata->symtab_shndx_section]
|| hdr == i_shdrpp[tdata->strtab_section])
hdr->sh_offset = -1;
else
off = _bfd_elf_assign_file_position_for_section (hdr, off, true);
+
+ if (i == SHN_LORESERVE - 1)
+ {
+ i += SHN_HIRESERVE + 1 - SHN_LORESERVE;
+ hdrpp += SHN_HIRESERVE + 1 - SHN_LORESERVE;
+ }
}
}
Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
Elf_Internal_Phdr *i_phdrp = 0; /* Program header table, internal form */
Elf_Internal_Shdr **i_shdrp; /* Section header table, internal form */
- int count;
- struct bfd_strtab_hash *shstrtab;
+ struct elf_strtab_hash *shstrtab;
struct elf_backend_data *bed = get_elf_backend_data (abfd);
i_ehdrp = elf_elfheader (abfd);
i_shdrp = elf_elfsections (abfd);
- shstrtab = _bfd_elf_stringtab_init ();
+ shstrtab = _bfd_elf_strtab_init ();
if (shstrtab == NULL)
return false;
bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB;
i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current;
- i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_NONE;
- i_ehdrp->e_ident[EI_ABIVERSION] = 0;
-
- for (count = EI_PAD; count < EI_NIDENT; count++)
- i_ehdrp->e_ident[count] = 0;
-
if ((abfd->flags & DYNAMIC) != 0)
i_ehdrp->e_type = ET_DYN;
else if ((abfd->flags & EXEC_P) != 0)
case bfd_arch_unknown:
i_ehdrp->e_machine = EM_NONE;
break;
- case bfd_arch_sparc:
- if (bfd_get_arch_size (abfd) == 64)
- i_ehdrp->e_machine = EM_SPARCV9;
- else
- i_ehdrp->e_machine = EM_SPARC;
- break;
- case bfd_arch_i370:
- i_ehdrp->e_machine = EM_S370;
- break;
- case bfd_arch_i386:
- i_ehdrp->e_machine = EM_386;
- break;
- case bfd_arch_ia64:
- i_ehdrp->e_machine = EM_IA_64;
- break;
- case bfd_arch_m68hc11:
- i_ehdrp->e_machine = EM_68HC11;
- break;
- case bfd_arch_m68hc12:
- i_ehdrp->e_machine = EM_68HC12;
- break;
- case bfd_arch_m68k:
- i_ehdrp->e_machine = EM_68K;
- break;
- case bfd_arch_m88k:
- i_ehdrp->e_machine = EM_88K;
- break;
- case bfd_arch_i860:
- i_ehdrp->e_machine = EM_860;
- break;
- case bfd_arch_i960:
- i_ehdrp->e_machine = EM_960;
- break;
- case bfd_arch_mips: /* MIPS Rxxxx */
- i_ehdrp->e_machine = EM_MIPS; /* only MIPS R3000 */
- break;
- case bfd_arch_hppa:
- i_ehdrp->e_machine = EM_PARISC;
- break;
- case bfd_arch_powerpc:
- i_ehdrp->e_machine = EM_PPC;
- break;
- case bfd_arch_alpha:
- i_ehdrp->e_machine = EM_ALPHA;
- break;
- case bfd_arch_sh:
- i_ehdrp->e_machine = EM_SH;
- break;
- case bfd_arch_d10v:
- i_ehdrp->e_machine = EM_CYGNUS_D10V;
- break;
- case bfd_arch_d30v:
- i_ehdrp->e_machine = EM_CYGNUS_D30V;
- break;
- case bfd_arch_fr30:
- i_ehdrp->e_machine = EM_CYGNUS_FR30;
- break;
- case bfd_arch_mcore:
- i_ehdrp->e_machine = EM_MCORE;
- break;
- case bfd_arch_avr:
- i_ehdrp->e_machine = EM_AVR;
- break;
- case bfd_arch_v850:
- switch (bfd_get_mach (abfd))
- {
- default:
- case 0: i_ehdrp->e_machine = EM_CYGNUS_V850; break;
- }
- break;
- case bfd_arch_arc:
- i_ehdrp->e_machine = EM_CYGNUS_ARC;
- break;
- case bfd_arch_arm:
- i_ehdrp->e_machine = EM_ARM;
- break;
- case bfd_arch_m32r:
- i_ehdrp->e_machine = EM_CYGNUS_M32R;
- break;
- case bfd_arch_mn10200:
- i_ehdrp->e_machine = EM_CYGNUS_MN10200;
- break;
- case bfd_arch_mn10300:
- i_ehdrp->e_machine = EM_CYGNUS_MN10300;
- break;
- case bfd_arch_pj:
- i_ehdrp->e_machine = EM_PJ;
- break;
- case bfd_arch_cris:
- i_ehdrp->e_machine = EM_CRIS;
- break;
- /* also note that EM_M32, AT&T WE32100 is unknown to bfd */
+
+ /* There used to be a long list of cases here, each one setting
+ e_machine to the same EM_* macro #defined as ELF_MACHINE_CODE
+ in the corresponding bfd definition. To avoid duplication,
+ the switch was removed. Machines that need special handling
+ can generally do it in elf_backend_final_write_processing(),
+ unless they need the information earlier than the final write.
+ Such need can generally be supplied by replacing the tests for
+ e_machine with the conditions used to determine it. */
default:
- i_ehdrp->e_machine = EM_NONE;
- }
+ if (get_elf_backend_data (abfd) != NULL)
+ i_ehdrp->e_machine = get_elf_backend_data (abfd)->elf_machine_code;
+ else
+ i_ehdrp->e_machine = EM_NONE;
+ }
+
i_ehdrp->e_version = bed->s->ev_current;
i_ehdrp->e_ehsize = bed->s->sizeof_ehdr;
}
elf_tdata (abfd)->symtab_hdr.sh_name =
- (unsigned int) _bfd_stringtab_add (shstrtab, ".symtab", true, false);
+ (unsigned int) _bfd_elf_strtab_add (shstrtab, ".symtab", false);
elf_tdata (abfd)->strtab_hdr.sh_name =
- (unsigned int) _bfd_stringtab_add (shstrtab, ".strtab", true, false);
+ (unsigned int) _bfd_elf_strtab_add (shstrtab, ".strtab", false);
elf_tdata (abfd)->shstrtab_hdr.sh_name =
- (unsigned int) _bfd_stringtab_add (shstrtab, ".shstrtab", true, false);
+ (unsigned int) _bfd_elf_strtab_add (shstrtab, ".shstrtab", false);
if (elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1
|| elf_tdata (abfd)->symtab_hdr.sh_name == (unsigned int) -1
|| elf_tdata (abfd)->shstrtab_hdr.sh_name == (unsigned int) -1)
bfd *abfd;
{
file_ptr off;
- unsigned int i;
+ unsigned int i, num_sec;
Elf_Internal_Shdr **shdrpp;
off = elf_tdata (abfd)->next_file_pos;
- for (i = 1, shdrpp = elf_elfsections (abfd) + 1;
- i < elf_elfheader (abfd)->e_shnum;
- i++, shdrpp++)
+ num_sec = elf_numsections (abfd);
+ for (i = 1, shdrpp = elf_elfsections (abfd) + 1; i < num_sec; i++, shdrpp++)
{
Elf_Internal_Shdr *shdrp;
Elf_Internal_Ehdr *i_ehdrp;
Elf_Internal_Shdr **i_shdrp;
boolean failed;
- unsigned int count;
+ unsigned int count, num_sec;
if (! abfd->output_has_begun
&& ! _bfd_elf_compute_section_file_positions
_bfd_elf_assign_file_positions_for_relocs (abfd);
/* After writing the headers, we need to write the sections too... */
- for (count = 1; count < i_ehdrp->e_shnum; count++)
+ num_sec = elf_numsections (abfd);
+ for (count = 1; count < num_sec; count++)
{
if (bed->elf_backend_section_processing)
(*bed->elf_backend_section_processing) (abfd, i_shdrp[count]);
if (i_shdrp[count]->contents)
{
+ bfd_size_type amt = i_shdrp[count]->sh_size;
+
if (bfd_seek (abfd, i_shdrp[count]->sh_offset, SEEK_SET) != 0
- || (bfd_write (i_shdrp[count]->contents, i_shdrp[count]->sh_size,
- 1, abfd)
- != i_shdrp[count]->sh_size))
+ || bfd_bwrite (i_shdrp[count]->contents, amt, abfd) != amt)
return false;
}
+ if (count == SHN_LORESERVE - 1)
+ count += SHN_HIRESERVE + 1 - SHN_LORESERVE;
}
/* Write out the section header names. */
if (bfd_seek (abfd, elf_tdata (abfd)->shstrtab_hdr.sh_offset, SEEK_SET) != 0
- || ! _bfd_stringtab_emit (abfd, elf_shstrtab (abfd)))
+ || ! _bfd_elf_strtab_emit (abfd, elf_shstrtab (abfd)))
return false;
if (bed->elf_backend_final_write_processing)
bfd *abfd;
struct sec *asect;
{
- struct elf_backend_data *bed = get_elf_backend_data (abfd);
- Elf_Internal_Shdr **i_shdrp = elf_elfsections (abfd);
+ struct elf_backend_data *bed;
int index;
- Elf_Internal_Shdr *hdr;
- int maxindex = elf_elfheader (abfd)->e_shnum;
- for (index = 0; index < maxindex; index++)
- {
- hdr = i_shdrp[index];
- if (hdr->bfd_section == asect)
- return index;
- }
+ if (elf_section_data (asect) != NULL
+ && elf_section_data (asect)->this_idx != 0)
+ return elf_section_data (asect)->this_idx;
- if (bed->elf_backend_section_from_bfd_section)
+ if (bfd_is_abs_section (asect))
+ index = SHN_ABS;
+ else if (bfd_is_com_section (asect))
+ index = SHN_COMMON;
+ else if (bfd_is_und_section (asect))
+ index = SHN_UNDEF;
+ else
{
- for (index = 0; index < maxindex; index++)
+ Elf_Internal_Shdr **i_shdrp = elf_elfsections (abfd);
+ int maxindex = elf_numsections (abfd);
+
+ for (index = 1; index < maxindex; index++)
{
- int retval;
+ Elf_Internal_Shdr *hdr = i_shdrp[index];
- hdr = i_shdrp[index];
- retval = index;
- if ((*bed->elf_backend_section_from_bfd_section)
- (abfd, hdr, asect, &retval))
- return retval;
+ if (hdr != NULL && hdr->bfd_section == asect)
+ return index;
}
+ index = -1;
}
- if (bfd_is_abs_section (asect))
- return SHN_ABS;
- if (bfd_is_com_section (asect))
- return SHN_COMMON;
- if (bfd_is_und_section (asect))
- return SHN_UNDEF;
+ bed = get_elf_backend_data (abfd);
+ if (bed->elf_backend_section_from_bfd_section)
+ {
+ int retval = index;
+
+ if ((*bed->elf_backend_section_from_bfd_section) (abfd, asect, &retval))
+ return retval;
+ }
- bfd_set_error (bfd_error_nonrepresentable_section);
+ if (index == -1)
+ bfd_set_error (bfd_error_nonrepresentable_section);
- return -1;
+ return index;
}
/* Given a BFD symbol, return the index in the ELF symbol table, or -1
indx = asym_ptr->section->output_section->index;
else
indx = asym_ptr->section->index;
- if (elf_section_syms (abfd)[indx])
+ if (indx < elf_num_section_syms (abfd)
+ && elf_section_syms (abfd)[indx] != NULL)
asym_ptr->udata.i = elf_section_syms (abfd)[indx]->udata.i;
}
which is used in a relocation entry. */
(*_bfd_error_handler)
(_("%s: symbol `%s' required but not present"),
- bfd_get_filename (abfd), bfd_asymbol_name (asym_ptr));
+ bfd_archive_filename (abfd), bfd_asymbol_name (asym_ptr));
bfd_set_error (bfd_error_no_symbols);
return -1;
}
#if DEBUG & 4
{
fprintf (stderr,
- _("elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx%s\n"),
+ "elf_symbol_from_bfd_symbol 0x%.8lx, name = %s, sym num = %d, flags = 0x%.8lx%s\n",
(long) asym_ptr, asym_ptr->name, idx, flags,
elf_symbol_flags (flags));
fflush (stderr);
bfd_vma maxpagesize;
struct elf_segment_map * phdr_adjust_seg = NULL;
unsigned int phdr_adjust_num = 0;
+ struct elf_backend_data * bed;
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
if (elf_tdata (ibfd)->phdr == NULL)
return true;
+ bed = get_elf_backend_data (ibfd);
iehdr = elf_elfheader (ibfd);
map_first = NULL;
&& (section->lma + section->_raw_size) \
<= SEGMENT_END (segment, base))
+ /* Returns true if the given section is contained within the
+ given segment. Filepos addresses are compared in an elf
+ backend function. */
+#define IS_CONTAINED_BY_FILEPOS(sec, seg, bed) \
+ (bed->is_contained_by_filepos \
+ && (*bed->is_contained_by_filepos) (sec, seg))
+
/* Special case: corefile "NOTE" section containing regs, prpsinfo etc. */
#define IS_COREFILE_NOTE(p, s) \
(p->p_type == PT_NOTE \
/* Decide if the given section should be included in the given segment.
A section will be included if:
- 1. It is within the address space of the segment,
+ 1. It is within the address space of the segment -- we use the LMA
+ if that is set for the segment and the VMA otherwise,
2. It is an allocated segment,
3. There is an output section associated with it,
4. The section has not already been allocated to a previous segment. */
-#define INCLUDE_SECTION_IN_SEGMENT(section, segment) \
- ((((IS_CONTAINED_BY_VMA (section, segment) \
- || IS_SOLARIS_PT_INTERP (segment, section)) \
- && (section->flags & SEC_ALLOC) != 0) \
- || IS_COREFILE_NOTE (segment, section)) \
- && section->output_section != NULL \
- && section->segment_mark == false)
+#define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \
+ (((((segment->p_paddr \
+ ? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \
+ : IS_CONTAINED_BY_VMA (section, segment)) \
+ || IS_SOLARIS_PT_INTERP (segment, section)) \
+ && (section->flags & SEC_ALLOC) != 0) \
+ || IS_COREFILE_NOTE (segment, section) \
+ || (IS_CONTAINED_BY_FILEPOS (section, segment, bed) \
+ && (section->flags & SEC_ALLOC) == 0)) \
+ && section->output_section != NULL \
+ && ! section->segment_mark)
/* Returns true iff seg1 starts after the end of seg2. */
#define SEGMENT_AFTER_SEGMENT(seg1, seg2) \
/* Scan through the segments specified in the program header
of the input BFD. For this first scan we look for overlaps
- in the loadable segments. These can be created by wierd
+ in the loadable segments. These can be created by weird
parameters to objcopy. */
for (i = 0, segment = elf_tdata (ibfd)->phdr;
i < num_segments;
bfd_vma matching_lma;
bfd_vma suggested_lma;
unsigned int j;
+ bfd_size_type amt;
if (segment->p_type == PT_NULL)
continue;
/* Compute how many sections might be placed into this segment. */
section_count = 0;
for (section = ibfd->sections; section != NULL; section = section->next)
- if (INCLUDE_SECTION_IN_SEGMENT (section, segment))
+ if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed))
++section_count;
/* Allocate a segment map big enough to contain all of the
sections we have selected. */
- map = ((struct elf_segment_map *)
- bfd_alloc (obfd,
- (sizeof (struct elf_segment_map)
- + ((size_t) section_count - 1) * sizeof (asection *))));
+ amt = sizeof (struct elf_segment_map);
+ amt += ((bfd_size_type) section_count - 1) * sizeof (asection *);
+ map = (struct elf_segment_map *) bfd_alloc (obfd, amt);
if (map == NULL)
return false;
{
/* Special segments, such as the PT_PHDR segment, may contain
no sections, but ordinary, loadable segments should contain
- something. */
+ something. They are allowed by the ELF spec however, so only
+ a warning is produced. */
if (segment->p_type == PT_LOAD)
- _bfd_error_handler
- (_("%s: warning: Empty loadable segment detected\n"),
- bfd_get_filename (ibfd));
+ (*_bfd_error_handler)
+ (_("%s: warning: Empty loadable segment detected, is this intentional ?\n"),
+ bfd_archive_filename (ibfd));
map->count = 0;
*pointer_to_map = map;
pointers that we are interested in. As these sections get assigned
to a segment, they are removed from this array. */
- sections = (asection **) bfd_malloc
- (sizeof (asection *) * section_count);
+ /* Gcc 2.96 miscompiles this code on mips. Don't do casting here
+ to work around this long long bug. */
+ amt = section_count * sizeof (asection *);
+ sections = (asection **) bfd_malloc (amt);
if (sections == NULL)
return false;
section != NULL;
section = section->next)
{
- if (INCLUDE_SECTION_IN_SEGMENT (section, segment))
+ if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed))
{
output_section = section->output_section;
? iehdr->e_ehsize
: 0)
+ (map->includes_phdrs
- ? iehdr->e_phnum * iehdr->e_phentsize
+ ? (iehdr->e_phnum
+ * iehdr->e_phentsize)
: 0))))
map->p_paddr = segment->p_vaddr;
/* Match up the physical address of the segment with the
LMA address of the output section. */
if (IS_CONTAINED_BY_LMA (output_section, segment, map->p_paddr)
+ || IS_CONTAINED_BY_FILEPOS (section, segment, bed)
|| IS_COREFILE_NOTE (segment, section))
{
if (matching_lma == 0)
}
/* Step Three: Loop over the sections again, this time assigning
- those that fit to the current segment and remvoing them from the
+ those that fit to the current segment and removing them from the
sections array; but making sure not to leave large gaps. Once all
possible sections have been assigned to the current segment it is
added to the list of built segments and if sections still remain
/* If the gap between the end of the previous section
and the start of this section is more than
maxpagesize then we need to start a new segment. */
- if ((BFD_ALIGN (prev_sec->lma + prev_sec->_raw_size, maxpagesize)
- < BFD_ALIGN (output_section->lma, maxpagesize))
- || ((prev_sec->lma + prev_sec->_raw_size) > output_section->lma))
+ if ((BFD_ALIGN (prev_sec->lma + prev_sec->_raw_size,
+ maxpagesize)
+ < BFD_ALIGN (output_section->lma, maxpagesize))
+ || ((prev_sec->lma + prev_sec->_raw_size)
+ > output_section->lma))
{
if (suggested_lma == 0)
suggested_lma = output_section->lma;
/* We still have not allocated all of the sections to
segments. Create a new segment here, initialise it
and carry on looping. */
- map = ((struct elf_segment_map *)
- bfd_alloc (obfd,
- (sizeof (struct elf_segment_map)
- + ((size_t) section_count - 1)
- * sizeof (asection *))));
+ amt = sizeof (struct elf_segment_map);
+ amt += ((bfd_size_type) section_count - 1) * sizeof (asection *);
+ map = (struct elf_segment_map *) bfd_alloc (obfd, amt);
if (map == NULL)
return false;
elf_tdata (obfd)->segment_map = map_first;
/* If we had to estimate the number of program headers that were
- going to be needed, then check our estimate know and adjust
+ going to be needed, then check our estimate now and adjust
the offset if necessary. */
if (phdr_adjust_seg != NULL)
{
#undef SEGMENT_END
#undef IS_CONTAINED_BY_VMA
#undef IS_CONTAINED_BY_LMA
+#undef IS_CONTAINED_BY_FILEPOS
#undef IS_COREFILE_NOTE
#undef IS_SOLARIS_PT_INTERP
#undef INCLUDE_SECTION_IN_SEGMENT
asection *osec;
{
Elf_Internal_Shdr *ihdr, *ohdr;
+ const struct elf_backend_data *bed = get_elf_backend_data (ibfd);
if (ibfd->xvec->flavour != bfd_target_elf_flavour
|| obfd->xvec->flavour != bfd_target_elf_flavour)
This must be done here, rather than in the copy_private_bfd_data
entry point, because the latter is called after the section
contents have been set, which means that the program headers have
- already been worked out. */
- if (elf_tdata (obfd)->segment_map == NULL
- && elf_tdata (ibfd)->phdr != NULL)
+ already been worked out. The backend function provides a way to
+ override the test conditions and code path for the call to
+ copy_private_bfd_data. */
+ if (bed->copy_private_bfd_data_p)
{
- asection *s;
-
- /* Only set up the segments if there are no more SEC_ALLOC
- sections. FIXME: This won't do the right thing if objcopy is
- used to remove the last SEC_ALLOC section, since objcopy
- won't call this routine in that case. */
- for (s = isec->next; s != NULL; s = s->next)
- if ((s->flags & SEC_ALLOC) != 0)
- break;
- if (s == NULL)
- {
- if (! copy_private_bfd_data (ibfd, obfd))
- return false;
- }
+ if ((*bed->copy_private_bfd_data_p) (ibfd, isec, obfd, osec))
+ if (! copy_private_bfd_data (ibfd, obfd))
+ return false;
+ }
+ else if (elf_tdata (obfd)->segment_map == NULL && elf_tdata (ibfd)->phdr != NULL)
+ {
+ asection *s;
+
+ /* Only set up the segments if there are no more SEC_ALLOC
+ sections. FIXME: This won't do the right thing if objcopy is
+ used to remove the last SEC_ALLOC section, since objcopy
+ won't call this routine in that case. */
+ for (s = isec->next; s != NULL; s = s->next)
+ if ((s->flags & SEC_ALLOC) != 0)
+ break;
+ if (s == NULL)
+ {
+ if (! copy_private_bfd_data (ibfd, obfd))
+ return false;
+ }
}
ihdr = &elf_section_data (isec)->this_hdr;
|| ihdr->sh_type == SHT_GNU_verdef)
ohdr->sh_info = ihdr->sh_info;
+ /* Set things up for objcopy. The output SHT_GROUP section will
+ have its elf_next_in_group pointing back to the input group
+ members. */
+ elf_next_in_group (osec) = elf_next_in_group (isec);
+ elf_group_name (osec) = elf_group_name (isec);
+
elf_section_data (osec)->use_rela_p
= elf_section_data (isec)->use_rela_p;
section indices; these definitions are interpreted by the
swap_out_syms function. */
-#define MAP_ONESYMTAB (SHN_LORESERVE - 1)
-#define MAP_DYNSYMTAB (SHN_LORESERVE - 2)
-#define MAP_STRTAB (SHN_LORESERVE - 3)
-#define MAP_SHSTRTAB (SHN_LORESERVE - 4)
+#define MAP_ONESYMTAB (SHN_HIOS + 1)
+#define MAP_DYNSYMTAB (SHN_HIOS + 2)
+#define MAP_STRTAB (SHN_HIOS + 3)
+#define MAP_SHSTRTAB (SHN_HIOS + 4)
+#define MAP_SYM_SHNDX (SHN_HIOS + 5)
boolean
_bfd_elf_copy_private_symbol_data (ibfd, isymarg, obfd, osymarg)
shndx = MAP_STRTAB;
else if (shndx == elf_tdata (ibfd)->shstrtab_section)
shndx = MAP_SHSTRTAB;
+ else if (shndx == elf_tdata (ibfd)->symtab_shndx_section)
+ shndx = MAP_SYM_SHNDX;
osym->internal_elf_sym.st_shndx = shndx;
}
struct bfd_strtab_hash **sttp;
int relocatable_p;
{
- struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ struct elf_backend_data *bed;
+ int symcount;
+ asymbol **syms;
+ struct bfd_strtab_hash *stt;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Shdr *symtab_shndx_hdr;
+ Elf_Internal_Shdr *symstrtab_hdr;
+ char *outbound_syms;
+ char *outbound_shndx;
+ int idx;
+ bfd_size_type amt;
if (!elf_map_symbols (abfd))
return false;
/* Dump out the symtabs. */
- {
- int symcount = bfd_get_symcount (abfd);
- asymbol **syms = bfd_get_outsymbols (abfd);
- struct bfd_strtab_hash *stt;
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Shdr *symstrtab_hdr;
- char *outbound_syms;
- int idx;
-
- stt = _bfd_elf_stringtab_init ();
- if (stt == NULL)
- return false;
+ stt = _bfd_elf_stringtab_init ();
+ if (stt == NULL)
+ return false;
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- symtab_hdr->sh_type = SHT_SYMTAB;
- symtab_hdr->sh_entsize = bed->s->sizeof_sym;
- symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1);
- symtab_hdr->sh_info = elf_num_locals (abfd) + 1;
- symtab_hdr->sh_addralign = bed->s->file_align;
+ bed = get_elf_backend_data (abfd);
+ symcount = bfd_get_symcount (abfd);
+ symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
+ symtab_hdr->sh_type = SHT_SYMTAB;
+ symtab_hdr->sh_entsize = bed->s->sizeof_sym;
+ symtab_hdr->sh_size = symtab_hdr->sh_entsize * (symcount + 1);
+ symtab_hdr->sh_info = elf_num_locals (abfd) + 1;
+ symtab_hdr->sh_addralign = bed->s->file_align;
+
+ symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr;
+ symstrtab_hdr->sh_type = SHT_STRTAB;
+
+ amt = (bfd_size_type) (1 + symcount) * bed->s->sizeof_sym;
+ outbound_syms = bfd_alloc (abfd, amt);
+ if (outbound_syms == NULL)
+ return false;
+ symtab_hdr->contents = (PTR) outbound_syms;
- symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr;
- symstrtab_hdr->sh_type = SHT_STRTAB;
+ outbound_shndx = NULL;
+ symtab_shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
+ if (symtab_shndx_hdr->sh_name != 0)
+ {
+ amt = (bfd_size_type) (1 + symcount) * sizeof (Elf_External_Sym_Shndx);
+ outbound_shndx = bfd_zalloc (abfd, amt);
+ if (outbound_shndx == NULL)
+ return false;
+ symtab_shndx_hdr->contents = outbound_shndx;
+ symtab_shndx_hdr->sh_type = SHT_SYMTAB_SHNDX;
+ symtab_shndx_hdr->sh_size = amt;
+ symtab_shndx_hdr->sh_addralign = sizeof (Elf_External_Sym_Shndx);
+ symtab_shndx_hdr->sh_entsize = sizeof (Elf_External_Sym_Shndx);
+ }
- outbound_syms = bfd_alloc (abfd,
- (1 + symcount) * bed->s->sizeof_sym);
- if (outbound_syms == NULL)
- return false;
- symtab_hdr->contents = (PTR) outbound_syms;
+ /* now generate the data (for "contents") */
+ {
+ /* Fill in zeroth symbol and swap it out. */
+ Elf_Internal_Sym sym;
+ sym.st_name = 0;
+ sym.st_value = 0;
+ sym.st_size = 0;
+ sym.st_info = 0;
+ sym.st_other = 0;
+ sym.st_shndx = SHN_UNDEF;
+ bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx);
+ outbound_syms += bed->s->sizeof_sym;
+ if (outbound_shndx != NULL)
+ outbound_shndx += sizeof (Elf_External_Sym_Shndx);
+ }
- /* now generate the data (for "contents") */
+ syms = bfd_get_outsymbols (abfd);
+ for (idx = 0; idx < symcount; idx++)
{
- /* Fill in zeroth symbol and swap it out. */
Elf_Internal_Sym sym;
- sym.st_name = 0;
- sym.st_value = 0;
- sym.st_size = 0;
- sym.st_info = 0;
- sym.st_other = 0;
- sym.st_shndx = SHN_UNDEF;
- bed->s->swap_symbol_out (abfd, &sym, (PTR) outbound_syms);
- outbound_syms += bed->s->sizeof_sym;
- }
- for (idx = 0; idx < symcount; idx++)
- {
- Elf_Internal_Sym sym;
- bfd_vma value = syms[idx]->value;
- elf_symbol_type *type_ptr;
- flagword flags = syms[idx]->flags;
- int type;
-
- if (flags & BSF_SECTION_SYM)
- /* Section symbols have no names. */
+ bfd_vma value = syms[idx]->value;
+ elf_symbol_type *type_ptr;
+ flagword flags = syms[idx]->flags;
+ int type;
+
+ if ((flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM)
+ {
+ /* Local section symbols have no name. */
sym.st_name = 0;
- else
- {
- sym.st_name = (unsigned long) _bfd_stringtab_add (stt,
- syms[idx]->name,
- true, false);
- if (sym.st_name == (unsigned long) -1)
- return false;
- }
+ }
+ else
+ {
+ sym.st_name = (unsigned long) _bfd_stringtab_add (stt,
+ syms[idx]->name,
+ true, false);
+ if (sym.st_name == (unsigned long) -1)
+ return false;
+ }
- type_ptr = elf_symbol_from (abfd, syms[idx]);
+ type_ptr = elf_symbol_from (abfd, syms[idx]);
- if ((flags & BSF_SECTION_SYM) == 0
- && bfd_is_com_section (syms[idx]->section))
- {
- /* ELF common symbols put the alignment into the `value' field,
- and the size into the `size' field. This is backwards from
- how BFD handles it, so reverse it here. */
- sym.st_size = value;
- if (type_ptr == NULL
- || type_ptr->internal_elf_sym.st_value == 0)
- sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value));
- else
- sym.st_value = type_ptr->internal_elf_sym.st_value;
- sym.st_shndx = _bfd_elf_section_from_bfd_section
- (abfd, syms[idx]->section);
- }
- else
- {
- asection *sec = syms[idx]->section;
- int shndx;
+ if ((flags & BSF_SECTION_SYM) == 0
+ && bfd_is_com_section (syms[idx]->section))
+ {
+ /* ELF common symbols put the alignment into the `value' field,
+ and the size into the `size' field. This is backwards from
+ how BFD handles it, so reverse it here. */
+ sym.st_size = value;
+ if (type_ptr == NULL
+ || type_ptr->internal_elf_sym.st_value == 0)
+ sym.st_value = value >= 16 ? 16 : (1 << bfd_log2 (value));
+ else
+ sym.st_value = type_ptr->internal_elf_sym.st_value;
+ sym.st_shndx = _bfd_elf_section_from_bfd_section
+ (abfd, syms[idx]->section);
+ }
+ else
+ {
+ asection *sec = syms[idx]->section;
+ int shndx;
- if (sec->output_section)
- {
- value += sec->output_offset;
- sec = sec->output_section;
- }
- /* Don't add in the section vma for relocatable output. */
- if (! relocatable_p)
- value += sec->vma;
- sym.st_value = value;
- sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0;
-
- if (bfd_is_abs_section (sec)
- && type_ptr != NULL
- && type_ptr->internal_elf_sym.st_shndx != 0)
- {
- /* This symbol is in a real ELF section which we did
- not create as a BFD section. Undo the mapping done
- by copy_private_symbol_data. */
- shndx = type_ptr->internal_elf_sym.st_shndx;
- switch (shndx)
- {
- case MAP_ONESYMTAB:
- shndx = elf_onesymtab (abfd);
- break;
- case MAP_DYNSYMTAB:
- shndx = elf_dynsymtab (abfd);
- break;
- case MAP_STRTAB:
- shndx = elf_tdata (abfd)->strtab_section;
- break;
- case MAP_SHSTRTAB:
- shndx = elf_tdata (abfd)->shstrtab_section;
- break;
- default:
- break;
- }
- }
- else
- {
- shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
+ if (sec->output_section)
+ {
+ value += sec->output_offset;
+ sec = sec->output_section;
+ }
+ /* Don't add in the section vma for relocatable output. */
+ if (! relocatable_p)
+ value += sec->vma;
+ sym.st_value = value;
+ sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0;
+
+ if (bfd_is_abs_section (sec)
+ && type_ptr != NULL
+ && type_ptr->internal_elf_sym.st_shndx != 0)
+ {
+ /* This symbol is in a real ELF section which we did
+ not create as a BFD section. Undo the mapping done
+ by copy_private_symbol_data. */
+ shndx = type_ptr->internal_elf_sym.st_shndx;
+ switch (shndx)
+ {
+ case MAP_ONESYMTAB:
+ shndx = elf_onesymtab (abfd);
+ break;
+ case MAP_DYNSYMTAB:
+ shndx = elf_dynsymtab (abfd);
+ break;
+ case MAP_STRTAB:
+ shndx = elf_tdata (abfd)->strtab_section;
+ break;
+ case MAP_SHSTRTAB:
+ shndx = elf_tdata (abfd)->shstrtab_section;
+ break;
+ case MAP_SYM_SHNDX:
+ shndx = elf_tdata (abfd)->symtab_shndx_section;
+ break;
+ default:
+ break;
+ }
+ }
+ else
+ {
+ shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
- if (shndx == -1)
- {
- asection *sec2;
-
- /* Writing this would be a hell of a lot easier if
- we had some decent documentation on bfd, and
- knew what to expect of the library, and what to
- demand of applications. For example, it
- appears that `objcopy' might not set the
- section of a symbol to be a section that is
- actually in the output file. */
- sec2 = bfd_get_section_by_name (abfd, sec->name);
- BFD_ASSERT (sec2 != 0);
- shndx = _bfd_elf_section_from_bfd_section (abfd, sec2);
- BFD_ASSERT (shndx != -1);
- }
- }
+ if (shndx == -1)
+ {
+ asection *sec2;
+
+ /* Writing this would be a hell of a lot easier if
+ we had some decent documentation on bfd, and
+ knew what to expect of the library, and what to
+ demand of applications. For example, it
+ appears that `objcopy' might not set the
+ section of a symbol to be a section that is
+ actually in the output file. */
+ sec2 = bfd_get_section_by_name (abfd, sec->name);
+ BFD_ASSERT (sec2 != 0);
+ shndx = _bfd_elf_section_from_bfd_section (abfd, sec2);
+ BFD_ASSERT (shndx != -1);
+ }
+ }
- sym.st_shndx = shndx;
- }
+ sym.st_shndx = shndx;
+ }
- if ((flags & BSF_FUNCTION) != 0)
- type = STT_FUNC;
- else if ((flags & BSF_OBJECT) != 0)
- type = STT_OBJECT;
- else
- type = STT_NOTYPE;
-
- /* Processor-specific types */
- if (type_ptr != NULL
- && bed->elf_backend_get_symbol_type)
- type = (*bed->elf_backend_get_symbol_type) (&type_ptr->internal_elf_sym, type);
-
- if (flags & BSF_SECTION_SYM)
- sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
- else if (bfd_is_com_section (syms[idx]->section))
- sym.st_info = ELF_ST_INFO (STB_GLOBAL, type);
- else if (bfd_is_und_section (syms[idx]->section))
- sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK)
- ? STB_WEAK
- : STB_GLOBAL),
- type);
- else if (flags & BSF_FILE)
- sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE);
- else
- {
- int bind = STB_LOCAL;
+ if ((flags & BSF_THREAD_LOCAL) != 0)
+ type = STT_TLS;
+ else if ((flags & BSF_FUNCTION) != 0)
+ type = STT_FUNC;
+ else if ((flags & BSF_OBJECT) != 0)
+ type = STT_OBJECT;
+ else
+ type = STT_NOTYPE;
- if (flags & BSF_LOCAL)
- bind = STB_LOCAL;
- else if (flags & BSF_WEAK)
- bind = STB_WEAK;
- else if (flags & BSF_GLOBAL)
- bind = STB_GLOBAL;
+ if (syms[idx]->section->flags & SEC_THREAD_LOCAL)
+ type = STT_TLS;
- sym.st_info = ELF_ST_INFO (bind, type);
- }
+ /* Processor-specific types */
+ if (type_ptr != NULL
+ && bed->elf_backend_get_symbol_type)
+ type = ((*bed->elf_backend_get_symbol_type)
+ (&type_ptr->internal_elf_sym, type));
- if (type_ptr != NULL)
- sym.st_other = type_ptr->internal_elf_sym.st_other;
- else
- sym.st_other = 0;
+ if (flags & BSF_SECTION_SYM)
+ {
+ if (flags & BSF_GLOBAL)
+ sym.st_info = ELF_ST_INFO (STB_GLOBAL, STT_SECTION);
+ else
+ sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
+ }
+ else if (bfd_is_com_section (syms[idx]->section))
+ sym.st_info = ELF_ST_INFO (STB_GLOBAL, type);
+ else if (bfd_is_und_section (syms[idx]->section))
+ sym.st_info = ELF_ST_INFO (((flags & BSF_WEAK)
+ ? STB_WEAK
+ : STB_GLOBAL),
+ type);
+ else if (flags & BSF_FILE)
+ sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE);
+ else
+ {
+ int bind = STB_LOCAL;
- bed->s->swap_symbol_out (abfd, &sym, (PTR) outbound_syms);
- outbound_syms += bed->s->sizeof_sym;
- }
+ if (flags & BSF_LOCAL)
+ bind = STB_LOCAL;
+ else if (flags & BSF_WEAK)
+ bind = STB_WEAK;
+ else if (flags & BSF_GLOBAL)
+ bind = STB_GLOBAL;
- *sttp = stt;
- symstrtab_hdr->sh_size = _bfd_stringtab_size (stt);
- symstrtab_hdr->sh_type = SHT_STRTAB;
+ sym.st_info = ELF_ST_INFO (bind, type);
+ }
- symstrtab_hdr->sh_flags = 0;
- symstrtab_hdr->sh_addr = 0;
- symstrtab_hdr->sh_entsize = 0;
- symstrtab_hdr->sh_link = 0;
- symstrtab_hdr->sh_info = 0;
- symstrtab_hdr->sh_addralign = 1;
- }
+ if (type_ptr != NULL)
+ sym.st_other = type_ptr->internal_elf_sym.st_other;
+ else
+ sym.st_other = 0;
+
+ bed->s->swap_symbol_out (abfd, &sym, outbound_syms, outbound_shndx);
+ outbound_syms += bed->s->sizeof_sym;
+ if (outbound_shndx != NULL)
+ outbound_shndx += sizeof (Elf_External_Sym_Shndx);
+ }
+
+ *sttp = stt;
+ symstrtab_hdr->sh_size = _bfd_stringtab_size (stt);
+ symstrtab_hdr->sh_type = SHT_STRTAB;
+
+ symstrtab_hdr->sh_flags = 0;
+ symstrtab_hdr->sh_addr = 0;
+ symstrtab_hdr->sh_entsize = 0;
+ symstrtab_hdr->sh_link = 0;
+ symstrtab_hdr->sh_info = 0;
+ symstrtab_hdr->sh_addralign = 1;
return true;
}
Elf_Internal_Shdr *hdr = &elf_tdata (abfd)->symtab_hdr;
symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym;
- symtab_size = (symcount - 1 + 1) * (sizeof (asymbol *));
+ symtab_size = (symcount + 1) * (sizeof (asymbol *));
+ if (symcount > 0)
+ symtab_size -= sizeof (asymbol *);
return symtab_size;
}
}
symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym;
- symtab_size = (symcount - 1 + 1) * (sizeof (asymbol *));
+ symtab_size = (symcount + 1) * (sizeof (asymbol *));
+ if (symcount > 0)
+ symtab_size -= sizeof (asymbol *);
return symtab_size;
}
{
arelent *tblptr;
unsigned int i;
+ struct elf_backend_data *bed = get_elf_backend_data (abfd);
- if (! get_elf_backend_data (abfd)->s->slurp_reloc_table (abfd,
- section,
- symbols,
- false))
+ if (! bed->s->slurp_reloc_table (abfd, section, symbols, false))
return -1;
tblptr = section->relocation;
bfd *abfd;
asymbol **alocation;
{
- long symcount = get_elf_backend_data (abfd)->s->slurp_symbol_table
- (abfd, alocation, false);
+ struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ long symcount = bed->s->slurp_symbol_table (abfd, alocation, false);
if (symcount >= 0)
bfd_get_symcount (abfd) = symcount;
bfd *abfd;
asymbol **alocation;
{
- return get_elf_backend_data (abfd)->s->slurp_symbol_table
- (abfd, alocation, true);
+ struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ return bed->s->slurp_symbol_table (abfd, alocation, true);
}
/* Return the size required for the dynamic reloc entries. Any
bfd *abfd;
{
bfd_byte *contents = NULL;
+ bfd_size_type amt;
if (elf_dynverdef (abfd) != 0)
{
if (contents == NULL)
goto error_return;
if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0
- || bfd_read ((PTR) contents, 1, hdr->sh_size, abfd) != hdr->sh_size)
+ || bfd_bread ((PTR) contents, hdr->sh_size, abfd) != hdr->sh_size)
goto error_return;
/* We know the number of entries in the section but not the maximum
{
_bfd_elf_swap_verdef_in (abfd, everdef, &iverdefmem);
- if ((iverdefmem.vd_ndx & VERSYM_VERSION) > maxidx)
- maxidx = iverdefmem.vd_ndx & VERSYM_VERSION;
+ if ((iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION)) > maxidx)
+ maxidx = iverdefmem.vd_ndx & ((unsigned) VERSYM_VERSION);
everdef = ((Elf_External_Verdef *)
((bfd_byte *) everdef + iverdefmem.vd_next));
}
- elf_tdata (abfd)->verdef =
- ((Elf_Internal_Verdef *)
- bfd_zalloc (abfd, maxidx * sizeof (Elf_Internal_Verdef)));
+ amt = (bfd_size_type) maxidx * sizeof (Elf_Internal_Verdef);
+ elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt);
if (elf_tdata (abfd)->verdef == NULL)
goto error_return;
iverdef->vd_bfd = abfd;
- iverdef->vd_auxptr = ((Elf_Internal_Verdaux *)
- bfd_alloc (abfd,
- (iverdef->vd_cnt
- * sizeof (Elf_Internal_Verdaux))));
+ amt = (bfd_size_type) iverdef->vd_cnt * sizeof (Elf_Internal_Verdaux);
+ iverdef->vd_auxptr = (Elf_Internal_Verdaux *) bfd_alloc (abfd, amt);
if (iverdef->vd_auxptr == NULL)
goto error_return;
hdr = &elf_tdata (abfd)->dynverref_hdr;
+ amt = (bfd_size_type) hdr->sh_info * sizeof (Elf_Internal_Verneed);
elf_tdata (abfd)->verref =
- ((Elf_Internal_Verneed *)
- bfd_zalloc (abfd, hdr->sh_info * sizeof (Elf_Internal_Verneed)));
+ (Elf_Internal_Verneed *) bfd_zalloc (abfd, amt);
if (elf_tdata (abfd)->verref == NULL)
goto error_return;
if (contents == NULL)
goto error_return;
if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0
- || bfd_read ((PTR) contents, 1, hdr->sh_size, abfd) != hdr->sh_size)
+ || bfd_bread ((PTR) contents, hdr->sh_size, abfd) != hdr->sh_size)
goto error_return;
everneed = (Elf_External_Verneed *) contents;
if (iverneed->vn_filename == NULL)
goto error_return;
- iverneed->vn_auxptr =
- ((Elf_Internal_Vernaux *)
- bfd_alloc (abfd,
- iverneed->vn_cnt * sizeof (Elf_Internal_Vernaux)));
+ amt = iverneed->vn_cnt;
+ amt *= sizeof (Elf_Internal_Vernaux);
+ iverneed->vn_auxptr = (Elf_Internal_Vernaux *) bfd_alloc (abfd, amt);
evernaux = ((Elf_External_Vernaux *)
((bfd_byte *) everneed + iverneed->vn_aux));
bfd *abfd;
{
elf_symbol_type *newsym;
+ bfd_size_type amt = sizeof (elf_symbol_type);
- newsym = (elf_symbol_type *) bfd_zalloc (abfd, sizeof (elf_symbol_type));
+ newsym = (elf_symbol_type *) bfd_zalloc (abfd, amt);
if (!newsym)
return NULL;
else
return bfd_default_set_arch_mach (abfd, arch, machine);
}
-/* Find the nearest line to a particular section and offset, for error
- reporting. */
+/* Find the function to a particular section and offset,
+ for error reporting. */
-boolean
-_bfd_elf_find_nearest_line (abfd,
- section,
- symbols,
- offset,
- filename_ptr,
- functionname_ptr,
- line_ptr)
- bfd *abfd;
+static boolean
+elf_find_function (abfd, section, symbols, offset,
+ filename_ptr, functionname_ptr)
+ bfd *abfd ATTRIBUTE_UNUSED;
asection *section;
asymbol **symbols;
bfd_vma offset;
- CONST char **filename_ptr;
- CONST char **functionname_ptr;
- unsigned int *line_ptr;
+ const char **filename_ptr;
+ const char **functionname_ptr;
{
- boolean found;
const char *filename;
asymbol *func;
bfd_vma low_func;
asymbol **p;
- if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
- filename_ptr, functionname_ptr,
- line_ptr))
- return true;
-
- if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
- filename_ptr, functionname_ptr,
- line_ptr, 0))
- return true;
-
- if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
- &found, filename_ptr,
- functionname_ptr, line_ptr,
- &elf_tdata (abfd)->line_info))
- return false;
- if (found)
- return true;
-
- if (symbols == NULL)
- return false;
-
filename = NULL;
func = NULL;
low_func = 0;
if (func == NULL)
return false;
- *filename_ptr = filename;
- *functionname_ptr = bfd_asymbol_name (func);
+ if (filename_ptr)
+ *filename_ptr = filename;
+ if (functionname_ptr)
+ *functionname_ptr = bfd_asymbol_name (func);
+
+ return true;
+}
+
+/* Find the nearest line to a particular section and offset,
+ for error reporting. */
+
+boolean
+_bfd_elf_find_nearest_line (abfd, section, symbols, offset,
+ filename_ptr, functionname_ptr, line_ptr)
+ bfd *abfd;
+ asection *section;
+ asymbol **symbols;
+ bfd_vma offset;
+ const char **filename_ptr;
+ const char **functionname_ptr;
+ unsigned int *line_ptr;
+{
+ boolean found;
+
+ if (_bfd_dwarf1_find_nearest_line (abfd, section, symbols, offset,
+ filename_ptr, functionname_ptr,
+ line_ptr))
+ {
+ if (!*functionname_ptr)
+ elf_find_function (abfd, section, symbols, offset,
+ *filename_ptr ? NULL : filename_ptr,
+ functionname_ptr);
+
+ return true;
+ }
+
+ if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
+ filename_ptr, functionname_ptr,
+ line_ptr, 0,
+ &elf_tdata (abfd)->dwarf2_find_line_info))
+ {
+ if (!*functionname_ptr)
+ elf_find_function (abfd, section, symbols, offset,
+ *filename_ptr ? NULL : filename_ptr,
+ functionname_ptr);
+
+ return true;
+ }
+
+ if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
+ &found, filename_ptr,
+ functionname_ptr, line_ptr,
+ &elf_tdata (abfd)->line_info))
+ return false;
+ if (found)
+ return true;
+
+ if (symbols == NULL)
+ return false;
+
+ if (! elf_find_function (abfd, section, symbols, offset,
+ filename_ptr, functionname_ptr))
+ return false;
+
*line_ptr = 0;
return true;
}
bfd_size_type count;
{
Elf_Internal_Shdr *hdr;
+ bfd_signed_vma pos;
if (! abfd->output_has_begun
- && ! _bfd_elf_compute_section_file_positions
- (abfd, (struct bfd_link_info *) NULL))
+ && ! (_bfd_elf_compute_section_file_positions
+ (abfd, (struct bfd_link_info *) NULL)))
return false;
hdr = &elf_section_data (section)->this_hdr;
-
- if (bfd_seek (abfd, hdr->sh_offset + offset, SEEK_SET) == -1)
- return false;
- if (bfd_write (location, 1, count, abfd) != count)
+ pos = hdr->sh_offset + offset;
+ if (bfd_seek (abfd, pos, SEEK_SET) != 0
+ || bfd_bwrite (location, count, abfd) != count)
return false;
return true;
fail:
(*_bfd_error_handler)
(_("%s: unsupported relocation type %s"),
- bfd_get_filename (abfd), areloc->howto->name);
+ bfd_archive_filename (abfd), areloc->howto->name);
bfd_set_error (bfd_error_bad_value);
return false;
}
if (bfd_get_format (abfd) == bfd_object)
{
if (elf_shstrtab (abfd) != NULL)
- _bfd_stringtab_free (elf_shstrtab (abfd));
+ _bfd_elf_strtab_free (elf_shstrtab (abfd));
}
return _bfd_generic_close_and_cleanup (abfd);
# include <sys/procfs.h>
#endif
-/* Define offsetof for those systems which lack it. */
-
-#ifndef offsetof
-# define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
-#endif
-
/* FIXME: this is kinda wrong, but it's what gdb wants. */
static int
return true;
}
+/* Create a pseudosection containing SIZE bytes at FILEPOS. This
+ actually creates up to two pseudosections:
+ - For the single-threaded case, a section named NAME, unless
+ such a section already exists.
+ - For the multi-threaded case, a section named "NAME/PID", where
+ PID is elfcore_make_pid (abfd).
+ Both pseudosections have identical contents. */
+boolean
+_bfd_elfcore_make_pseudosection (abfd, name, size, filepos)
+ bfd *abfd;
+ char *name;
+ size_t size;
+ ufile_ptr filepos;
+{
+ char buf[100];
+ char *threaded_name;
+ size_t len;
+ asection *sect;
+
+ /* Build the section name. */
+
+ sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd));
+ len = strlen (buf) + 1;
+ threaded_name = bfd_alloc (abfd, (bfd_size_type) len);
+ if (threaded_name == NULL)
+ return false;
+ memcpy (threaded_name, buf, len);
+
+ sect = bfd_make_section (abfd, threaded_name);
+ if (sect == NULL)
+ return false;
+ sect->_raw_size = size;
+ sect->filepos = filepos;
+ sect->flags = SEC_HAS_CONTENTS;
+ sect->alignment_power = 2;
+
+ return elfcore_maybe_make_sect (abfd, name, sect);
+}
+
/* prstatus_t exists on:
solaris 2.5+
linux 2.[01] + glibc
*/
#if defined (HAVE_PRSTATUS_T)
+static boolean elfcore_grok_prstatus PARAMS ((bfd *, Elf_Internal_Note *));
+
static boolean
elfcore_grok_prstatus (abfd, note)
bfd *abfd;
Elf_Internal_Note *note;
{
- char buf[100];
- char *name;
- asection *sect;
- int raw_size;
+ size_t raw_size;
int offset;
if (note->descsz == sizeof (prstatus_t))
offset = offsetof (prstatus_t, pr_reg);
memcpy (&prstat, note->descdata, sizeof (prstat));
- elf_tdata (abfd)->core_signal = prstat.pr_cursig;
+ /* Do not overwrite the core signal if it
+ has already been set by another thread. */
+ if (elf_tdata (abfd)->core_signal == 0)
+ elf_tdata (abfd)->core_signal = prstat.pr_cursig;
elf_tdata (abfd)->core_pid = prstat.pr_pid;
/* pr_who exists on:
offset = offsetof (prstatus32_t, pr_reg);
memcpy (&prstat, note->descdata, sizeof (prstat));
- elf_tdata (abfd)->core_signal = prstat.pr_cursig;
+ /* Do not overwrite the core signal if it
+ has already been set by another thread. */
+ if (elf_tdata (abfd)->core_signal == 0)
+ elf_tdata (abfd)->core_signal = prstat.pr_cursig;
elf_tdata (abfd)->core_pid = prstat.pr_pid;
/* pr_who exists on:
return true;
}
- /* Make a ".reg/999" section. */
-
- sprintf (buf, ".reg/%d", elfcore_make_pid (abfd));
- name = bfd_alloc (abfd, strlen (buf) + 1);
- if (name == NULL)
- return false;
- strcpy (name, buf);
-
- sect = bfd_make_section (abfd, name);
- if (sect == NULL)
- return false;
-
- sect->_raw_size = raw_size;
- sect->filepos = note->descpos + offset;
-
- sect->flags = SEC_HAS_CONTENTS;
- sect->alignment_power = 2;
-
- if (! elfcore_maybe_make_sect (abfd, ".reg", sect))
- return false;
-
- return true;
+ /* Make a ".reg/999" section and a ".reg" section. */
+ return _bfd_elfcore_make_pseudosection (abfd, ".reg",
+ raw_size, note->descpos + offset);
}
#endif /* defined (HAVE_PRSTATUS_T) */
-/* Create a pseudosection containing the exact contents of NOTE. This
- actually creates up to two pseudosections:
- - For the single-threaded case, a section named NAME, unless
- such a section already exists.
- - For the multi-threaded case, a section named "NAME/PID", where
- PID is elfcore_make_pid (abfd).
- Both pseudosections have identical contents: the contents of NOTE. */
-
+/* Create a pseudosection containing the exact contents of NOTE. */
static boolean
elfcore_make_note_pseudosection (abfd, name, note)
bfd *abfd;
char *name;
Elf_Internal_Note *note;
{
- char buf[100];
- char *threaded_name;
- asection *sect;
-
- /* Build the section name. */
-
- sprintf (buf, "%s/%d", name, elfcore_make_pid (abfd));
- threaded_name = bfd_alloc (abfd, strlen (buf) + 1);
- if (threaded_name == NULL)
- return false;
- strcpy (threaded_name, buf);
-
- sect = bfd_make_section (abfd, threaded_name);
- if (sect == NULL)
- return false;
- sect->_raw_size = note->descsz;
- sect->filepos = note->descpos;
- sect->flags = SEC_HAS_CONTENTS;
- sect->alignment_power = 2;
-
- if (! elfcore_maybe_make_sect (abfd, name, sect))
- return false;
-
- return true;
+ return _bfd_elfcore_make_pseudosection (abfd, name,
+ note->descsz, note->descpos);
}
/* There isn't a consistent prfpregset_t across platforms,
#endif
#endif
-#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
-
/* return a malloc'ed copy of a string at START which is at
most MAX bytes long, possibly without a terminating '\0'.
the copy will always have a terminating '\0'. */
-static char*
-elfcore_strndup (abfd, start, max)
+char *
+_bfd_elfcore_strndup (abfd, start, max)
bfd *abfd;
char *start;
- int max;
+ size_t max;
{
- char *dup;
+ char *dups;
char *end = memchr (start, '\0', max);
- int len;
+ size_t len;
if (end == NULL)
len = max;
else
len = end - start;
- dup = bfd_alloc (abfd, len + 1);
- if (dup == NULL)
+ dups = bfd_alloc (abfd, (bfd_size_type) len + 1);
+ if (dups == NULL)
return NULL;
- memcpy (dup, start, len);
- dup[len] = '\0';
+ memcpy (dups, start, len);
+ dups[len] = '\0';
- return dup;
+ return dups;
}
+#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
+static boolean elfcore_grok_psinfo PARAMS ((bfd *, Elf_Internal_Note *));
+
static boolean
elfcore_grok_psinfo (abfd, note)
bfd *abfd;
memcpy (&psinfo, note->descdata, sizeof (psinfo));
elf_tdata (abfd)->core_program
- = elfcore_strndup (abfd, psinfo.pr_fname, sizeof (psinfo.pr_fname));
+ = _bfd_elfcore_strndup (abfd, psinfo.pr_fname,
+ sizeof (psinfo.pr_fname));
elf_tdata (abfd)->core_command
- = elfcore_strndup (abfd, psinfo.pr_psargs, sizeof (psinfo.pr_psargs));
+ = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs,
+ sizeof (psinfo.pr_psargs));
}
#if defined (HAVE_PRPSINFO32_T) || defined (HAVE_PSINFO32_T)
else if (note->descsz == sizeof (elfcore_psinfo32_t))
memcpy (&psinfo, note->descdata, sizeof (psinfo));
elf_tdata (abfd)->core_program
- = elfcore_strndup (abfd, psinfo.pr_fname, sizeof (psinfo.pr_fname));
+ = _bfd_elfcore_strndup (abfd, psinfo.pr_fname,
+ sizeof (psinfo.pr_fname));
elf_tdata (abfd)->core_command
- = elfcore_strndup (abfd, psinfo.pr_psargs, sizeof (psinfo.pr_psargs));
+ = _bfd_elfcore_strndup (abfd, psinfo.pr_psargs,
+ sizeof (psinfo.pr_psargs));
}
#endif
#endif /* defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T) */
#if defined (HAVE_PSTATUS_T)
+static boolean elfcore_grok_pstatus PARAMS ((bfd *, Elf_Internal_Note *));
+
static boolean
elfcore_grok_pstatus (abfd, note)
bfd *abfd;
#endif /* defined (HAVE_PSTATUS_T) */
#if defined (HAVE_LWPSTATUS_T)
+static boolean elfcore_grok_lwpstatus PARAMS ((bfd *, Elf_Internal_Note *));
+
static boolean
elfcore_grok_lwpstatus (abfd, note)
bfd *abfd;
lwpstatus_t lwpstat;
char buf[100];
char *name;
+ size_t len;
asection *sect;
if (note->descsz != sizeof (lwpstat)
/* Make a ".reg/999" section. */
sprintf (buf, ".reg/%d", elfcore_make_pid (abfd));
- name = bfd_alloc (abfd, strlen (buf) + 1);
+ len = strlen (buf) + 1;
+ name = bfd_alloc (abfd, (bfd_size_type) len);
if (name == NULL)
return false;
- strcpy (name, buf);
+ memcpy (name, buf, len);
sect = bfd_make_section (abfd, name);
if (sect == NULL)
/* Make a ".reg2/999" section */
sprintf (buf, ".reg2/%d", elfcore_make_pid (abfd));
- name = bfd_alloc (abfd, strlen (buf) + 1);
+ len = strlen (buf) + 1;
+ name = bfd_alloc (abfd, (bfd_size_type) len);
if (name == NULL)
return false;
- strcpy (name, buf);
+ memcpy (name, buf, len);
sect = bfd_make_section (abfd, name);
if (sect == NULL)
sect->flags = SEC_HAS_CONTENTS;
sect->alignment_power = 2;
- if (!elfcore_maybe_make_sect (abfd, ".reg2", sect))
- return false;
-
- return true;
+ return elfcore_maybe_make_sect (abfd, ".reg2", sect);
}
#endif /* defined (HAVE_LWPSTATUS_T) */
{
char buf[30];
char *name;
+ size_t len;
asection *sect;
win32_pstatus_t pstatus;
if (note->descsz < sizeof (pstatus))
return true;
- memcpy (&pstatus, note->descdata, note->descsz);
+ memcpy (&pstatus, note->descdata, sizeof (pstatus));
switch (pstatus.data_type)
{
/* Make a ".reg/999" section. */
sprintf (buf, ".reg/%d", pstatus.data.thread_info.tid);
- name = bfd_alloc (abfd, strlen (buf) + 1);
+ len = strlen (buf) + 1;
+ name = bfd_alloc (abfd, (bfd_size_type) len);
if (name == NULL)
return false;
- strcpy (name, buf);
+ memcpy (name, buf, len);
sect = bfd_make_section (abfd, name);
if (sect == NULL)
return false;
sect->_raw_size = sizeof (pstatus.data.thread_info.thread_context);
- sect->filepos = note->descpos + offsetof (struct win32_pstatus,
- data.thread_info.thread_context);
+ sect->filepos = (note->descpos
+ + offsetof (struct win32_pstatus,
+ data.thread_info.thread_context));
sect->flags = SEC_HAS_CONTENTS;
sect->alignment_power = 2;
/* Make a ".module/xxxxxxxx" section. */
sprintf (buf, ".module/%08x", pstatus.data.module_info.base_address);
- name = bfd_alloc (abfd, strlen (buf) + 1);
+ len = strlen (buf) + 1;
+ name = bfd_alloc (abfd, (bfd_size_type) len);
if (name == NULL)
return false;
- strcpy (name, buf);
+ memcpy (name, buf, len);
sect = bfd_make_section (abfd, name);
bfd *abfd;
Elf_Internal_Note *note;
{
+ struct elf_backend_data *bed = get_elf_backend_data (abfd);
+
switch (note->type)
{
default:
return true;
-#if defined (HAVE_PRSTATUS_T)
case NT_PRSTATUS:
+ if (bed->elf_backend_grok_prstatus)
+ if ((*bed->elf_backend_grok_prstatus) (abfd, note))
+ return true;
+#if defined (HAVE_PRSTATUS_T)
return elfcore_grok_prstatus (abfd, note);
+#else
+ return true;
#endif
#if defined (HAVE_PSTATUS_T)
else
return true;
-#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
case NT_PRPSINFO:
case NT_PSINFO:
+ if (bed->elf_backend_grok_psinfo)
+ if ((*bed->elf_backend_grok_psinfo) (abfd, note))
+ return true;
+#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
return elfcore_grok_psinfo (abfd, note);
+#else
+ return true;
#endif
}
}
+static boolean
+elfcore_netbsd_get_lwpid (note, lwpidp)
+ Elf_Internal_Note *note;
+ int *lwpidp;
+{
+ char *cp;
+
+ cp = strchr (note->namedata, '@');
+ if (cp != NULL)
+ {
+ *lwpidp = atoi(cp + 1);
+ return true;
+ }
+ return false;
+}
+
+static boolean
+elfcore_grok_netbsd_procinfo (abfd, note)
+ bfd *abfd;
+ Elf_Internal_Note *note;
+{
+
+ /* Signal number at offset 0x08. */
+ elf_tdata (abfd)->core_signal
+ = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08);
+
+ /* Process ID at offset 0x50. */
+ elf_tdata (abfd)->core_pid
+ = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50);
+
+ /* Command name at 0x7c (max 32 bytes, including nul). */
+ elf_tdata (abfd)->core_command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31);
+
+ return true;
+}
+
+static boolean
+elfcore_grok_netbsd_note (abfd, note)
+ bfd *abfd;
+ Elf_Internal_Note *note;
+{
+ int lwp;
+
+ if (elfcore_netbsd_get_lwpid (note, &lwp))
+ elf_tdata (abfd)->core_lwpid = lwp;
+
+ if (note->type == NT_NETBSDCORE_PROCINFO)
+ {
+ /* NetBSD-specific core "procinfo". Note that we expect to
+ find this note before any of the others, which is fine,
+ since the kernel writes this note out first when it
+ creates a core file. */
+
+ return elfcore_grok_netbsd_procinfo (abfd, note);
+ }
+
+ /* As of Jan 2002 there are no other machine-independent notes
+ defined for NetBSD core files. If the note type is less
+ than the start of the machine-dependent note types, we don't
+ understand it. */
+
+ if (note->type < NT_NETBSDCORE_FIRSTMACH)
+ return true;
+
+
+ switch (bfd_get_arch (abfd))
+ {
+ /* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and
+ PT_GETFPREGS == mach+2. */
+
+ case bfd_arch_alpha:
+ case bfd_arch_sparc:
+ switch (note->type)
+ {
+ case NT_NETBSDCORE_FIRSTMACH+0:
+ return elfcore_make_note_pseudosection (abfd, ".reg", note);
+
+ case NT_NETBSDCORE_FIRSTMACH+2:
+ return elfcore_make_note_pseudosection (abfd, ".reg2", note);
+
+ default:
+ return true;
+ }
+
+ /* On all other arch's, PT_GETREGS == mach+1 and
+ PT_GETFPREGS == mach+3. */
+
+ default:
+ switch (note->type)
+ {
+ case NT_NETBSDCORE_FIRSTMACH+1:
+ return elfcore_make_note_pseudosection (abfd, ".reg", note);
+
+ case NT_NETBSDCORE_FIRSTMACH+3:
+ return elfcore_make_note_pseudosection (abfd, ".reg2", note);
+
+ default:
+ return true;
+ }
+ }
+ /* NOTREACHED */
+}
+
+/* Function: elfcore_write_note
+
+ Inputs:
+ buffer to hold note
+ name of note
+ type of note
+ data for note
+ size of data for note
+
+ Return:
+ End of buffer containing note. */
+
+char *
+elfcore_write_note (abfd, buf, bufsiz, name, type, input, size)
+ bfd *abfd;
+ char *buf;
+ int *bufsiz;
+ const char *name;
+ int type;
+ const PTR input;
+ int size;
+{
+ Elf_External_Note *xnp;
+ size_t namesz;
+ size_t pad;
+ size_t newspace;
+ char *p, *dest;
+
+ namesz = 0;
+ pad = 0;
+ if (name != NULL)
+ {
+ struct elf_backend_data *bed;
+
+ namesz = strlen (name) + 1;
+ bed = get_elf_backend_data (abfd);
+ pad = -namesz & (bed->s->file_align - 1);
+ }
+
+ newspace = sizeof (Elf_External_Note) - 1 + namesz + pad + size;
+
+ p = realloc (buf, *bufsiz + newspace);
+ dest = p + *bufsiz;
+ *bufsiz += newspace;
+ xnp = (Elf_External_Note *) dest;
+ H_PUT_32 (abfd, namesz, xnp->namesz);
+ H_PUT_32 (abfd, size, xnp->descsz);
+ H_PUT_32 (abfd, type, xnp->type);
+ dest = xnp->name;
+ if (name != NULL)
+ {
+ memcpy (dest, name, namesz);
+ dest += namesz;
+ while (pad != 0)
+ {
+ *dest++ = '\0';
+ --pad;
+ }
+ }
+ memcpy (dest, input, size);
+ return p;
+}
+
+#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
+char *
+elfcore_write_prpsinfo (abfd, buf, bufsiz, fname, psargs)
+ bfd *abfd;
+ char *buf;
+ int *bufsiz;
+ const char *fname;
+ const char *psargs;
+{
+ int note_type;
+ char *note_name = "CORE";
+
+#if defined (HAVE_PSINFO_T)
+ psinfo_t data;
+ note_type = NT_PSINFO;
+#else
+ prpsinfo_t data;
+ note_type = NT_PRPSINFO;
+#endif
+
+ memset (&data, 0, sizeof (data));
+ strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
+ strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
+ return elfcore_write_note (abfd, buf, bufsiz,
+ note_name, note_type, &data, sizeof (data));
+}
+#endif /* PSINFO_T or PRPSINFO_T */
+
+#if defined (HAVE_PRSTATUS_T)
+char *
+elfcore_write_prstatus (abfd, buf, bufsiz, pid, cursig, gregs)
+ bfd *abfd;
+ char *buf;
+ int *bufsiz;
+ long pid;
+ int cursig;
+ const PTR gregs;
+{
+ prstatus_t prstat;
+ char *note_name = "CORE";
+
+ memset (&prstat, 0, sizeof (prstat));
+ prstat.pr_pid = pid;
+ prstat.pr_cursig = cursig;
+ memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
+ return elfcore_write_note (abfd, buf, bufsiz,
+ note_name, NT_PRSTATUS, &prstat, sizeof (prstat));
+}
+#endif /* HAVE_PRSTATUS_T */
+
+#if defined (HAVE_LWPSTATUS_T)
+char *
+elfcore_write_lwpstatus (abfd, buf, bufsiz, pid, cursig, gregs)
+ bfd *abfd;
+ char *buf;
+ int *bufsiz;
+ long pid;
+ int cursig;
+ const PTR gregs;
+{
+ lwpstatus_t lwpstat;
+ char *note_name = "CORE";
+
+ memset (&lwpstat, 0, sizeof (lwpstat));
+ lwpstat.pr_lwpid = pid >> 16;
+ lwpstat.pr_cursig = cursig;
+#if defined (HAVE_LWPSTATUS_T_PR_REG)
+ memcpy (lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg));
+#elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT)
+#if !defined(gregs)
+ memcpy (lwpstat.pr_context.uc_mcontext.gregs,
+ gregs, sizeof (lwpstat.pr_context.uc_mcontext.gregs));
+#else
+ memcpy (lwpstat.pr_context.uc_mcontext.__gregs,
+ gregs, sizeof (lwpstat.pr_context.uc_mcontext.__gregs));
+#endif
+#endif
+ return elfcore_write_note (abfd, buf, bufsiz, note_name,
+ NT_LWPSTATUS, &lwpstat, sizeof (lwpstat));
+}
+#endif /* HAVE_LWPSTATUS_T */
+
+#if defined (HAVE_PSTATUS_T)
+char *
+elfcore_write_pstatus (abfd, buf, bufsiz, pid, cursig, gregs)
+ bfd *abfd;
+ char *buf;
+ int *bufsiz;
+ long pid;
+ int cursig;
+ const PTR gregs;
+{
+ pstatus_t pstat;
+ char *note_name = "CORE";
+
+ memset (&pstat, 0, sizeof (pstat));
+ pstat.pr_pid = pid & 0xffff;
+ buf = elfcore_write_note (abfd, buf, bufsiz, note_name,
+ NT_PSTATUS, &pstat, sizeof (pstat));
+ return buf;
+}
+#endif /* HAVE_PSTATUS_T */
+
+char *
+elfcore_write_prfpreg (abfd, buf, bufsiz, fpregs, size)
+ bfd *abfd;
+ char *buf;
+ int *bufsiz;
+ const PTR fpregs;
+ int size;
+{
+ char *note_name = "CORE";
+ return elfcore_write_note (abfd, buf, bufsiz,
+ note_name, NT_FPREGSET, fpregs, size);
+}
+
+char *
+elfcore_write_prxfpreg (abfd, buf, bufsiz, xfpregs, size)
+ bfd *abfd;
+ char *buf;
+ int *bufsiz;
+ const PTR xfpregs;
+ int size;
+{
+ char *note_name = "LINUX";
+ return elfcore_write_note (abfd, buf, bufsiz,
+ note_name, NT_PRXFPREG, xfpregs, size);
+}
+
static boolean
elfcore_read_notes (abfd, offset, size)
bfd *abfd;
- bfd_vma offset;
- bfd_vma size;
+ file_ptr offset;
+ bfd_size_type size;
{
char *buf;
char *p;
if (size <= 0)
return true;
- if (bfd_seek (abfd, offset, SEEK_SET) == -1)
+ if (bfd_seek (abfd, offset, SEEK_SET) != 0)
return false;
- buf = bfd_malloc ((size_t) size);
+ buf = bfd_malloc (size);
if (buf == NULL)
return false;
- if (bfd_read (buf, size, 1, abfd) != size)
+ if (bfd_bread (buf, size, abfd) != size)
{
error:
free (buf);
Elf_External_Note *xnp = (Elf_External_Note *) p;
Elf_Internal_Note in;
- in.type = bfd_h_get_32 (abfd, (bfd_byte *) xnp->type);
+ in.type = H_GET_32 (abfd, xnp->type);
- in.namesz = bfd_h_get_32 (abfd, (bfd_byte *) xnp->namesz);
+ in.namesz = H_GET_32 (abfd, xnp->namesz);
in.namedata = xnp->name;
- in.descsz = bfd_h_get_32 (abfd, (bfd_byte *) xnp->descsz);
+ in.descsz = H_GET_32 (abfd, xnp->descsz);
in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4);
in.descpos = offset + (in.descdata - buf);
- if (! elfcore_grok_note (abfd, &in))
- goto error;
+ if (strncmp (in.namedata, "NetBSD-CORE", 11) == 0)
+ {
+ if (! elfcore_grok_netbsd_note (abfd, &in))
+ goto error;
+ }
+ else
+ {
+ if (! elfcore_grok_note (abfd, &in))
+ goto error;
+ }
p = in.descdata + BFD_ALIGN (in.descsz, 4);
}
free (buf);
return true;
}
-
-/* FIXME: This function is now unnecessary. Callers can just call
- bfd_section_from_phdr directly. */
-
-boolean
-_bfd_elfcore_section_from_phdr (abfd, phdr, sec_num)
- bfd *abfd;
- Elf_Internal_Phdr* phdr;
- int sec_num;
-{
- if (! bfd_section_from_phdr (abfd, phdr, sec_num))
- return false;
-
- return true;
-}
\f
/* Providing external access to the ELF program header table. */
return -1;
}
- return (elf_elfheader (abfd)->e_phnum
- * sizeof (Elf_Internal_Phdr));
+ return elf_elfheader (abfd)->e_phnum * sizeof (Elf_Internal_Phdr);
}
/* Copy ABFD's program header table entries to *PHDRS. The entries
return num_phdrs;
}
+
+void
+_bfd_elf_sprintf_vma (abfd, buf, value)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ char *buf;
+ bfd_vma value;
+{
+#ifdef BFD64
+ Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
+
+ i_ehdrp = elf_elfheader (abfd);
+ if (i_ehdrp == NULL)
+ sprintf_vma (buf, value);
+ else
+ {
+ if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64)
+ {
+#if BFD_HOST_64BIT_LONG
+ sprintf (buf, "%016lx", value);
+#else
+ sprintf (buf, "%08lx%08lx", _bfd_int64_high (value),
+ _bfd_int64_low (value));
+#endif
+ }
+ else
+ sprintf (buf, "%08lx", (unsigned long) (value & 0xffffffff));
+ }
+#else
+ sprintf_vma (buf, value);
+#endif
+}
+
+void
+_bfd_elf_fprintf_vma (abfd, stream, value)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ PTR stream;
+ bfd_vma value;
+{
+#ifdef BFD64
+ Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */
+
+ i_ehdrp = elf_elfheader (abfd);
+ if (i_ehdrp == NULL)
+ fprintf_vma ((FILE *) stream, value);
+ else
+ {
+ if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64)
+ {
+#if BFD_HOST_64BIT_LONG
+ fprintf ((FILE *) stream, "%016lx", value);
+#else
+ fprintf ((FILE *) stream, "%08lx%08lx",
+ _bfd_int64_high (value), _bfd_int64_low (value));
+#endif
+ }
+ else
+ fprintf ((FILE *) stream, "%08lx",
+ (unsigned long) (value & 0xffffffff));
+ }
+#else
+ fprintf_vma ((FILE *) stream, value);
+#endif
+}
+
+enum elf_reloc_type_class
+_bfd_elf_reloc_type_class (rela)
+ const Elf_Internal_Rela *rela ATTRIBUTE_UNUSED;
+{
+ return reloc_class_normal;
+}
+
+/* For RELA architectures, return what the relocation value for
+ relocation against a local symbol. */
+
+bfd_vma
+_bfd_elf_rela_local_sym (abfd, sym, sec, rel)
+ bfd *abfd;
+ Elf_Internal_Sym *sym;
+ asection *sec;
+ Elf_Internal_Rela *rel;
+{
+ bfd_vma relocation;
+
+ relocation = (sec->output_section->vma
+ + sec->output_offset
+ + sym->st_value);
+ if ((sec->flags & SEC_MERGE)
+ && ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ && elf_section_data (sec)->sec_info_type == ELF_INFO_TYPE_MERGE)
+ {
+ asection *msec;
+
+ msec = sec;
+ rel->r_addend =
+ _bfd_merged_section_offset (abfd, &msec,
+ elf_section_data (sec)->sec_info,
+ sym->st_value + rel->r_addend,
+ (bfd_vma) 0)
+ - relocation;
+ rel->r_addend += msec->output_section->vma + msec->output_offset;
+ }
+ return relocation;
+}
+
+bfd_vma
+_bfd_elf_rel_local_sym (abfd, sym, psec, addend)
+ bfd *abfd;
+ Elf_Internal_Sym *sym;
+ asection **psec;
+ bfd_vma addend;
+{
+ asection *sec = *psec;
+
+ if (elf_section_data (sec)->sec_info_type != ELF_INFO_TYPE_MERGE)
+ return sym->st_value + addend;
+
+ return _bfd_merged_section_offset (abfd, psec,
+ elf_section_data (sec)->sec_info,
+ sym->st_value + addend, (bfd_vma) 0);
+}
+
+bfd_vma
+_bfd_elf_section_offset (abfd, info, sec, offset)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ asection *sec;
+ bfd_vma offset;
+{
+ struct bfd_elf_section_data *sec_data;
+
+ sec_data = elf_section_data (sec);
+ switch (sec_data->sec_info_type)
+ {
+ case ELF_INFO_TYPE_STABS:
+ return _bfd_stab_section_offset
+ (abfd, &elf_hash_table (info)->merge_info, sec, &sec_data->sec_info,
+ offset);
+ case ELF_INFO_TYPE_EH_FRAME:
+ return _bfd_elf_eh_frame_section_offset (abfd, sec, offset);
+ default:
+ return offset;
+ }
+}
projects / deliverable / binutils-gdb.git / blobdiff