for (esym = extsym_buf, isym = intsym_buf, shndx = extshndx_buf;
isym < isymend;
esym += extsym_size, isym++, shndx = shndx != NULL ? shndx + 1 : NULL)
- (*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym);
+ if (!(*bed->s->swap_symbol_in) (ibfd, esym, shndx, isym))
+ {
+ symoffset += (esym - (bfd_byte *) extsym_buf) / extsym_size;
+ (*_bfd_error_handler) (_("%B symbol number %lu references "
+ "nonexistent SHT_SYMTAB_SHNDX section"),
+ ibfd, (unsigned long) symoffset);
+ intsym_buf = NULL;
+ goto out;
+ }
out:
if (alloc_ext != NULL)
int len;
} debug_sections [] =
{
- { "debug", 5 }, /* 'd' */
+ { STRING_COMMA_LEN ("debug") }, /* 'd' */
{ NULL, 0 }, /* 'e' */
{ NULL, 0 }, /* 'f' */
- { "gnu.linkonce.wi.", 17 }, /* 'g' */
+ { STRING_COMMA_LEN ("gnu.linkonce.wi.") }, /* 'g' */
{ NULL, 0 }, /* 'h' */
{ NULL, 0 }, /* 'i' */
{ NULL, 0 }, /* 'j' */
{ NULL, 0 }, /* 'k' */
- { "line", 4 }, /* 'l' */
+ { STRING_COMMA_LEN ("line") }, /* 'l' */
{ NULL, 0 }, /* 'm' */
{ NULL, 0 }, /* 'n' */
{ NULL, 0 }, /* 'o' */
{ NULL, 0 }, /* 'p' */
{ NULL, 0 }, /* 'q' */
{ NULL, 0 }, /* 'r' */
- { "stab", 4 } /* 's' */
+ { STRING_COMMA_LEN ("stab") } /* 's' */
};
if (name [0] == '.')
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 (CONST_STRNEQ (name, ".gnu.linkonce")
&& elf_next_in_group (newsect) == NULL)
flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD;
}
void
-bfd_elf_set_dyn_lib_class (bfd *abfd, int lib_class)
+bfd_elf_set_dyn_lib_class (bfd *abfd, enum dynamic_lib_link_class lib_class)
{
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
&& bfd_get_format (abfd) == bfd_object)
abfd->flags |= HAS_RELOC;
return TRUE;
}
- break;
case SHT_GNU_verdef:
elf_dynverdef (abfd) = shindex;
elf_tdata (abfd)->dynverdef_hdr = *hdr;
return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex);
- break;
case SHT_GNU_versym:
if (hdr->sh_entsize != sizeof (Elf_External_Versym))
static const struct bfd_elf_special_section special_sections_b[] =
{
- { ".bss", 4, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".bss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_c[] =
{
- { ".comment", 8, 0, SHT_PROGBITS, 0 },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".comment"), 0, SHT_PROGBITS, 0 },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_d[] =
{
- { ".data", 5, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
- { ".data1", 6, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
- { ".debug", 6, 0, SHT_PROGBITS, 0 },
- { ".debug_line", 11, 0, SHT_PROGBITS, 0 },
- { ".debug_info", 11, 0, SHT_PROGBITS, 0 },
- { ".debug_abbrev", 13, 0, SHT_PROGBITS, 0 },
- { ".debug_aranges", 14, 0, SHT_PROGBITS, 0 },
- { ".dynamic", 8, 0, SHT_DYNAMIC, SHF_ALLOC },
- { ".dynstr", 7, 0, SHT_STRTAB, SHF_ALLOC },
- { ".dynsym", 7, 0, SHT_DYNSYM, SHF_ALLOC },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".data"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".data1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".debug"), 0, SHT_PROGBITS, 0 },
+ { STRING_COMMA_LEN (".debug_line"), 0, SHT_PROGBITS, 0 },
+ { STRING_COMMA_LEN (".debug_info"), 0, SHT_PROGBITS, 0 },
+ { STRING_COMMA_LEN (".debug_abbrev"), 0, SHT_PROGBITS, 0 },
+ { STRING_COMMA_LEN (".debug_aranges"), 0, SHT_PROGBITS, 0 },
+ { STRING_COMMA_LEN (".dynamic"), 0, SHT_DYNAMIC, SHF_ALLOC },
+ { STRING_COMMA_LEN (".dynstr"), 0, SHT_STRTAB, SHF_ALLOC },
+ { STRING_COMMA_LEN (".dynsym"), 0, SHT_DYNSYM, SHF_ALLOC },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_f[] =
{
- { ".fini", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
- { ".fini_array", 11, 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
+ { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_WRITE },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_g[] =
{
- { ".gnu.linkonce.b",15, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
- { ".got", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
- { ".gnu.version", 12, 0, SHT_GNU_versym, 0 },
- { ".gnu.version_d", 14, 0, SHT_GNU_verdef, 0 },
- { ".gnu.version_r", 14, 0, SHT_GNU_verneed, 0 },
- { ".gnu.liblist", 12, 0, SHT_GNU_LIBLIST, SHF_ALLOC },
- { ".gnu.conflict", 13, 0, SHT_RELA, SHF_ALLOC },
- { ".gnu.hash", 9, 0, SHT_GNU_HASH, SHF_ALLOC },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".gnu.linkonce.b"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".got"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".gnu.version"), 0, SHT_GNU_versym, 0 },
+ { STRING_COMMA_LEN (".gnu.version_d"), 0, SHT_GNU_verdef, 0 },
+ { STRING_COMMA_LEN (".gnu.version_r"), 0, SHT_GNU_verneed, 0 },
+ { STRING_COMMA_LEN (".gnu.liblist"), 0, SHT_GNU_LIBLIST, SHF_ALLOC },
+ { STRING_COMMA_LEN (".gnu.conflict"), 0, SHT_RELA, SHF_ALLOC },
+ { STRING_COMMA_LEN (".gnu.hash"), 0, SHT_GNU_HASH, SHF_ALLOC },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_h[] =
{
- { ".hash", 5, 0, SHT_HASH, SHF_ALLOC },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".hash"), 0, SHT_HASH, SHF_ALLOC },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_i[] =
{
- { ".init", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
- { ".init_array", 11, 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE },
- { ".interp", 7, 0, SHT_PROGBITS, 0 },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
+ { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".interp"), 0, SHT_PROGBITS, 0 },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_l[] =
{
- { ".line", 5, 0, SHT_PROGBITS, 0 },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".line"), 0, SHT_PROGBITS, 0 },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_n[] =
{
- { ".note.GNU-stack",15, 0, SHT_PROGBITS, 0 },
- { ".note", 5, -1, SHT_NOTE, 0 },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".note.GNU-stack"), 0, SHT_PROGBITS, 0 },
+ { STRING_COMMA_LEN (".note"), -1, SHT_NOTE, 0 },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_p[] =
{
- { ".preinit_array", 14, 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE },
- { ".plt", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_WRITE },
+ { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_r[] =
{
- { ".rodata", 7, -2, SHT_PROGBITS, SHF_ALLOC },
- { ".rodata1", 8, 0, SHT_PROGBITS, SHF_ALLOC },
- { ".rela", 5, -1, SHT_RELA, 0 },
- { ".rel", 4, -1, SHT_REL, 0 },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".rodata"), -2, SHT_PROGBITS, SHF_ALLOC },
+ { STRING_COMMA_LEN (".rodata1"), 0, SHT_PROGBITS, SHF_ALLOC },
+ { STRING_COMMA_LEN (".rela"), -1, SHT_RELA, 0 },
+ { STRING_COMMA_LEN (".rel"), -1, SHT_REL, 0 },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_s[] =
{
- { ".shstrtab", 9, 0, SHT_STRTAB, 0 },
- { ".strtab", 7, 0, SHT_STRTAB, 0 },
- { ".symtab", 7, 0, SHT_SYMTAB, 0 },
- { ".stabstr", 5, 3, SHT_STRTAB, 0 },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".shstrtab"), 0, SHT_STRTAB, 0 },
+ { STRING_COMMA_LEN (".strtab"), 0, SHT_STRTAB, 0 },
+ { STRING_COMMA_LEN (".symtab"), 0, SHT_SYMTAB, 0 },
+ /* See struct bfd_elf_special_section declaration for the semantics of
+ this special case where .prefix_length != strlen (.prefix). */
+ { ".stabstr", 5, 3, SHT_STRTAB, 0 },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section special_sections_t[] =
{
- { ".text", 5, -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
- { ".tbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS },
- { ".tdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS },
- { NULL, 0, 0, 0, 0 }
+ { STRING_COMMA_LEN (".text"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR },
+ { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS },
+ { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_TLS },
+ { NULL, 0, 0, 0, 0 }
};
static const struct bfd_elf_special_section *special_sections[] =
s, s->owner);
/* Point to the kept section if it has the same
size as the discarded one. */
- kept = _bfd_elf_check_kept_section (s);
+ kept = _bfd_elf_check_kept_section (s, link_info);
if (kept == NULL)
{
bfd_set_error (bfd_error_bad_value);
string section. We look for a section with the same name
but without the trailing ``str'', and set its sh_link
field to point to this section. */
- if (strncmp (sec->name, ".stab", sizeof ".stab" - 1) == 0
+ if (CONST_STRNEQ (sec->name, ".stab")
&& strcmp (sec->name + strlen (sec->name) - 3, "str") == 0)
{
size_t len;
{
/* We need a PT_DYNAMIC segment. */
++segs;
+
+ if (elf_tdata (abfd)->relro)
+ {
+ /* We need a PT_GNU_RELRO segment only when there is a
+ PT_DYNAMIC segment. */
+ ++segs;
+ }
}
if (elf_tdata (abfd)->eh_frame_hdr)
++segs;
}
- if (elf_tdata (abfd)->relro)
- {
- /* We need a PT_GNU_RELRO segment. */
- ++segs;
- }
-
for (s = abfd->sections; s != NULL; s = s->next)
{
if ((s->flags & SEC_LOAD) != 0
- && strncmp (s->name, ".note", 5) == 0)
+ && CONST_STRNEQ (s->name, ".note"))
{
/* We need a PT_NOTE segment. */
++segs;
static bfd_boolean
elf_modify_segment_map (bfd *abfd, struct bfd_link_info *info)
{
- struct elf_segment_map *m;
+ struct elf_segment_map **m;
const struct elf_backend_data *bed;
/* 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. We also remove excluded
- sections. */
- for (m = elf_tdata (abfd)->segment_map;
- m != NULL;
- m = m->next)
+ sections. Finally, any PT_LOAD segment without sections is
+ removed. */
+ m = &elf_tdata (abfd)->segment_map;
+ while (*m)
{
unsigned int i, new_count;
- new_count = 0;
- for (i = 0; i < m->count; i ++)
+ for (new_count = 0, i = 0; i < (*m)->count; i++)
{
- if ((m->sections[i]->flags & SEC_EXCLUDE) == 0
- && ((m->sections[i]->flags & SEC_ALLOC) != 0
- || m->p_type != PT_LOAD))
+ if (((*m)->sections[i]->flags & SEC_EXCLUDE) == 0
+ && (((*m)->sections[i]->flags & SEC_ALLOC) != 0
+ || (*m)->p_type != PT_LOAD))
{
- if (i != new_count)
- m->sections[new_count] = m->sections[i];
-
- new_count ++;
+ (*m)->sections[new_count] = (*m)->sections[i];
+ new_count++;
}
}
+ (*m)->count = new_count;
- if (new_count != m->count)
- m->count = new_count;
+ if ((*m)->p_type == PT_LOAD && (*m)->count == 0)
+ *m = (*m)->next;
+ else
+ m = &(*m)->next;
}
bed = get_elf_backend_data (abfd);
if (bed->elf_backend_modify_segment_map != NULL)
{
- if (! (*bed->elf_backend_modify_segment_map) (abfd, info))
+ if (!(*bed->elf_backend_modify_segment_map) (abfd, info))
return FALSE;
}
for (s = abfd->sections; s != NULL; s = s->next)
{
if ((s->flags & SEC_LOAD) != 0
- && strncmp (s->name, ".note", 5) == 0)
+ && CONST_STRNEQ (s->name, ".note"))
{
amt = sizeof (struct elf_segment_map);
m = bfd_zalloc (abfd, amt);
pm = &m->next;
}
- if (elf_tdata (abfd)->relro)
+ if (dynsec != NULL && elf_tdata (abfd)->relro)
{
+ /* We make a PT_GNU_RELRO segment only when there is a
+ PT_DYNAMIC segment. */
amt = sizeof (struct elf_segment_map);
m = bfd_zalloc (abfd, amt);
if (m == NULL)
.tbss, we need to look at the next section to decide
whether the segment has any loadable sections. */
i = 0;
- while ((m->sections[i]->flags & SEC_LOAD) == 0)
+ while ((m->sections[i]->flags & SEC_LOAD) == 0
+ && (m->sections[i]->flags & SEC_HAS_CONTENTS) == 0)
{
if ((m->sections[i]->flags & SEC_THREAD_LOCAL) == 0
|| ++i >= m->count)
{
if (p->p_type == PT_LOAD)
{
- sec->filepos = off;
+ sec->filepos = off + voff;
/* FIXME: The SEC_HAS_CONTENTS test here dates back to
1997, and the exact reason for it isn't clear. One
plausible explanation is that it is to work around
p->p_memsz += o->offset + o->size;
}
- if (align > p->p_align
- && (p->p_type != PT_LOAD
- || (abfd->flags & D_PAGED) == 0))
+ if (p->p_type == PT_GNU_RELRO)
+ p->p_align = 1;
+ else if (align > p->p_align
+ && (p->p_type != PT_LOAD
+ || (abfd->flags & D_PAGED) == 0))
p->p_align = align;
}
hdr = *hdrpp;
if (hdr->bfd_section != NULL
- && hdr->bfd_section->filepos != 0)
+ && (hdr->bfd_section->filepos != 0
+ || (hdr->sh_type == SHT_NOBITS
+ && hdr->contents == NULL)))
hdr->sh_offset = hdr->bfd_section->filepos;
else if ((hdr->sh_flags & SHF_ALLOC) != 0)
{
- ((*_bfd_error_handler)
- (_("%B: warning: allocated section `%s' not in segment"),
- abfd,
- (hdr->bfd_section == NULL
- ? "*unknown*"
- : hdr->bfd_section->name)));
- if ((abfd->flags & D_PAGED) != 0)
+ if (hdr->sh_size != 0)
+ ((*_bfd_error_handler)
+ (_("%B: warning: allocated section `%s' not in segment"),
+ abfd,
+ (hdr->bfd_section == NULL
+ ? "*unknown*"
+ : hdr->bfd_section->name)));
+ /* We don't need to page align empty sections. */
+ if ((abfd->flags & D_PAGED) != 0 && hdr->sh_size != 0)
off += vma_page_aligned_bias (hdr->sh_addr, off,
bed->maxpagesize);
else
7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments.
8. PT_DYNAMIC should not contain empty sections at the beginning
(with the possible exception of .dynamic). */
-#define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \
+#define IS_SECTION_IN_INPUT_SEGMENT(section, segment, bed) \
((((segment->p_paddr \
? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \
: IS_CONTAINED_BY_VMA (section, segment)) \
&& (section->flags & SEC_ALLOC) != 0) \
|| IS_COREFILE_NOTE (segment, section)) \
- && section->output_section != NULL \
&& segment->p_type != PT_GNU_STACK \
&& (segment->p_type != PT_TLS \
|| (section->flags & SEC_THREAD_LOCAL)) \
== 0)) \
&& ! section->segment_mark)
+/* If the output section of a section in the input segment is NULL,
+ it is removed from the corresponding output segment. */
+#define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \
+ (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed) \
+ && section->output_section != NULL)
+
/* Returns TRUE iff seg1 starts after the end of seg2. */
#define SEGMENT_AFTER_SEGMENT(seg1, seg2, field) \
(seg1->field >= SEGMENT_END (seg2, seg2->field))
bfd_vma suggested_lma;
unsigned int j;
bfd_size_type amt;
+ asection * first_section;
if (segment->p_type == PT_NULL)
continue;
+ first_section = NULL;
/* Compute how many sections might be placed into this segment. */
for (section = ibfd->sections, section_count = 0;
section != NULL;
section = section->next)
- if (INCLUDE_SECTION_IN_SEGMENT (section, segment, bed))
- ++section_count;
+ {
+ /* Find the first section in the input segment, which may be
+ removed from the corresponding output segment. */
+ if (IS_SECTION_IN_INPUT_SEGMENT (section, segment, bed))
+ {
+ if (first_section == NULL)
+ first_section = section;
+ if (section->output_section != NULL)
+ ++section_count;
+ }
+ }
/* Allocate a segment map big enough to contain
all of the sections we have selected. */
amt = sizeof (struct elf_segment_map);
amt += ((bfd_size_type) section_count - 1) * sizeof (asection *);
- map = bfd_alloc (obfd, amt);
+ map = bfd_zalloc (obfd, amt);
if (map == NULL)
return FALSE;
map->p_type = segment->p_type;
map->p_flags = segment->p_flags;
map->p_flags_valid = 1;
- map->p_paddr = segment->p_paddr;
- map->p_paddr_valid = 1;
+
+ /* If the first section in the input segment is removed, there is
+ no need to preserve segment physical address in the corresponding
+ output segment. */
+ if (!first_section || first_section->output_section != NULL)
+ {
+ map->p_paddr = segment->p_paddr;
+ map->p_paddr_valid = 1;
+ }
/* Determine if this segment contains the ELF file header
and if it contains the program headers themselves. */
#undef IS_CONTAINED_BY_LMA
#undef IS_COREFILE_NOTE
#undef IS_SOLARIS_PT_INTERP
+#undef IS_SECTION_IN_INPUT_SEGMENT
#undef INCLUDE_SECTION_IN_SEGMENT
#undef SEGMENT_AFTER_SEGMENT
#undef SEGMENT_OVERLAPS
amt = sizeof (struct elf_segment_map);
if (section_count != 0)
amt += ((bfd_size_type) section_count - 1) * sizeof (asection *);
- map = bfd_alloc (obfd, amt);
+ map = bfd_zalloc (obfd, amt);
if (map == NULL)
return FALSE;
output BFD section flags have been set to something different.
elf_fake_sections will set ELF section type based on BFD
section flags. */
- if (osec->flags == isec->flags
- || (osec->flags == 0 && elf_section_type (osec) == SHT_NULL))
- elf_section_type (osec) = elf_section_type (isec);
+ if (osec->flags == isec->flags || !osec->flags)
+ {
+ BFD_ASSERT (osec->flags == isec->flags
+ || (!osec->flags
+ && elf_section_type (osec) == SHT_NULL));
+ elf_section_type (osec) = elf_section_type (isec);
+ }
+
+ /* FIXME: Is this correct for all OS/PROC specific flags? */
+ elf_section_flags (osec) |= (elf_section_flags (isec)
+ & (SHF_MASKOS | SHF_MASKPROC));
/* Set things up for objcopy and relocatable link. The output
SHT_GROUP section will have its elf_next_in_group pointing back
bfd_boolean
_bfd_elf_copy_private_header_data (bfd *ibfd, bfd *obfd)
{
+ asection *isec;
+
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
return FALSE;
}
+ /* _bfd_elf_copy_private_section_data copied over the SHF_GROUP flag
+ but this might be wrong if we deleted the group section. */
+ for (isec = ibfd->sections; isec != NULL; isec = isec->next)
+ if (elf_section_type (isec) == SHT_GROUP
+ && isec->output_section == NULL)
+ {
+ asection *first = elf_next_in_group (isec);
+ asection *s = first;
+ while (s != NULL)
+ {
+ if (s->output_section != NULL)
+ {
+ elf_section_flags (s->output_section) &= ~SHF_GROUP;
+ elf_group_name (s->output_section) = NULL;
+ }
+ s = elf_next_in_group (s);
+ if (s == first)
+ break;
+ }
+ }
+
return TRUE;
}
/* Function: elfcore_write_note
Inputs:
- buffer to hold note
+ buffer to hold note, and current size of buffer
name of note
type of note
data for note
size of data for note
+ Writes note to end of buffer. ELF64 notes are written exactly as
+ for ELF32, despite the current (as of 2006) ELF gabi specifying
+ that they ought to have 8-byte namesz and descsz field, and have
+ 8-byte alignment. Other writers, eg. Linux kernel, do the same.
+
Return:
- End of buffer containing note. */
+ Pointer to realloc'd buffer, *BUFSIZ updated. */
char *
-elfcore_write_note (bfd *abfd,
+elfcore_write_note (bfd *abfd,
char *buf,
- int *bufsiz,
+ int *bufsiz,
const char *name,
- int type,
+ int type,
const void *input,
- int size)
+ int size)
{
Elf_External_Note *xnp;
size_t namesz;
- size_t pad;
size_t newspace;
- char *p, *dest;
+ char *dest;
namesz = 0;
- pad = 0;
if (name != NULL)
- {
- const struct elf_backend_data *bed;
+ namesz = strlen (name) + 1;
- namesz = strlen (name) + 1;
- bed = get_elf_backend_data (abfd);
- pad = -namesz & ((1 << bed->s->log_file_align) - 1);
- }
+ newspace = 12 + ((namesz + 3) & -4) + ((size + 3) & -4);
- newspace = 12 + namesz + pad + size;
-
- p = realloc (buf, *bufsiz + newspace);
- dest = p + *bufsiz;
+ buf = realloc (buf, *bufsiz + newspace);
+ dest = buf + *bufsiz;
*bufsiz += newspace;
xnp = (Elf_External_Note *) dest;
H_PUT_32 (abfd, namesz, xnp->namesz);
{
memcpy (dest, name, namesz);
dest += namesz;
- while (pad != 0)
+ while (namesz & 3)
{
*dest++ = '\0';
- --pad;
+ ++namesz;
}
}
memcpy (dest, input, size);
- return p;
+ dest += size;
+ while (size & 3)
+ {
+ *dest++ = '\0';
+ ++size;
+ }
+ return buf;
}
#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4);
in.descpos = offset + (in.descdata - buf);
- if (strncmp (in.namedata, "NetBSD-CORE", 11) == 0)
+ if (CONST_STRNEQ (in.namedata, "NetBSD-CORE"))
{
if (! elfcore_grok_netbsd_note (abfd, &in))
goto error;
}
- else if (strncmp (in.namedata, "QNX", 3) == 0)
+ else if (CONST_STRNEQ (in.namedata, "QNX"))
{
if (! elfcore_grok_nto_note (abfd, &in))
goto error;
symbols. */
bfd_boolean
-bfd_elf_match_symbols_in_sections (asection *sec1, asection *sec2)
+bfd_elf_match_symbols_in_sections (asection *sec1, asection *sec2,
+ struct bfd_link_info *info)
{
bfd *bfd1, *bfd2;
const struct elf_backend_data *bed1, *bed2;
/* If both are .gnu.linkonce sections, they have to have the same
section name. */
- if (strncmp (sec1->name, ".gnu.linkonce",
- sizeof ".gnu.linkonce" - 1) == 0
- && strncmp (sec2->name, ".gnu.linkonce",
- sizeof ".gnu.linkonce" - 1) == 0)
+ if (CONST_STRNEQ (sec1->name, ".gnu.linkonce")
+ && CONST_STRNEQ (sec2->name, ".gnu.linkonce"))
return strcmp (sec1->name + sizeof ".gnu.linkonce",
sec2->name + sizeof ".gnu.linkonce") == 0;
if (symcount1 == 0 || symcount2 == 0)
return FALSE;
- isymbuf1 = bfd_elf_get_elf_syms (bfd1, hdr1, symcount1, 0,
- NULL, NULL, NULL);
- isymbuf2 = bfd_elf_get_elf_syms (bfd2, hdr2, symcount2, 0,
- NULL, NULL, NULL);
-
result = FALSE;
- if (isymbuf1 == NULL || isymbuf2 == NULL)
- goto done;
+ isymbuf1 = elf_tdata (bfd1)->symbuf;
+ isymbuf2 = elf_tdata (bfd2)->symbuf;
- /* Sort symbols by binding and section. Global definitions are at
- the beginning. */
- qsort (isymbuf1, symcount1, sizeof (Elf_Internal_Sym),
- elf_sort_elf_symbol);
- qsort (isymbuf2, symcount2, sizeof (Elf_Internal_Sym),
- elf_sort_elf_symbol);
+ if (isymbuf1 == NULL)
+ {
+ isymbuf1 = bfd_elf_get_elf_syms (bfd1, hdr1, symcount1, 0,
+ NULL, NULL, NULL);
+ if (isymbuf1 == NULL)
+ goto done;
+ /* Sort symbols by binding and section. Global definitions are at
+ the beginning. */
+ qsort (isymbuf1, symcount1, sizeof (Elf_Internal_Sym),
+ elf_sort_elf_symbol);
+ if (!info->reduce_memory_overheads)
+ elf_tdata (bfd1)->symbuf = isymbuf1;
+ }
+
+ if (isymbuf2 == NULL)
+ {
+ isymbuf2 = bfd_elf_get_elf_syms (bfd2, hdr2, symcount2, 0,
+ NULL, NULL, NULL);
+ if (isymbuf2 == NULL)
+ goto done;
+ /* Sort symbols by binding and section. Global definitions are at
+ the beginning. */
+ qsort (isymbuf2, symcount2, sizeof (Elf_Internal_Sym),
+ elf_sort_elf_symbol);
+ if (!info->reduce_memory_overheads)
+ elf_tdata (bfd2)->symbuf = isymbuf2;
+ }
/* Count definitions in the section. */
count1 = 0;
free (symtable1);
if (symtable2)
free (symtable2);
- if (isymbuf1)
- free (isymbuf1);
- if (isymbuf2)
- free (isymbuf2);
+ if (info->reduce_memory_overheads)
+ {
+ if (isymbuf1)
+ free (isymbuf1);
+ if (isymbuf2)
+ free (isymbuf2);
+ }
return result;
}
projects / binutils-gdb.git / blobdiff