return h & 0xffffffff;
}
+/* DT_GNU_HASH hash function. Do not change this function; you will
+ cause invalid hash tables to be generated. */
+
+unsigned long
+bfd_elf_gnu_hash (const char *namearg)
+{
+ const unsigned char *name = (const unsigned char *) namearg;
+ unsigned long h = 5381;
+ unsigned char ch;
+
+ while ((ch = *name++) != '\0')
+ h = (h << 5) + h + ch;
+ return h & 0xffffffff;
+}
+
bfd_boolean
bfd_elf_mkobject (bfd *abfd)
{
- /* This just does initialization. */
- /* coff_mkobject zalloc's space for tdata.coff_obj_data ... */
- elf_tdata (abfd) = bfd_zalloc (abfd, sizeof (struct elf_obj_tdata));
- if (elf_tdata (abfd) == 0)
- return FALSE;
- /* Since everything is done at close time, do we need any
- initialization? */
+ if (abfd->tdata.any == NULL)
+ {
+ abfd->tdata.any = bfd_zalloc (abfd, sizeof (struct elf_obj_tdata));
+ if (abfd->tdata.any == NULL)
+ return FALSE;
+ }
+
+ elf_tdata (abfd)->program_header_size = (bfd_size_type) -1;
return TRUE;
}
{ "debug", 5 }, /* 'd' */
{ NULL, 0 }, /* 'e' */
{ NULL, 0 }, /* 'f' */
- { "gnu.linkonce.wi.", 17 }, /* 'g' */
+ { "gnu.linkonce.wi.", 16 }, /* 'g' */
{ NULL, 0 }, /* 'h' */
{ NULL, 0 }, /* 'i' */
{ NULL, 0 }, /* 'j' */
case DT_AUXILIARY: name = "AUXILIARY"; stringp = TRUE; break;
case DT_USED: name = "USED"; break;
case DT_FILTER: name = "FILTER"; stringp = TRUE; break;
+ case DT_GNU_HASH: name = "GNU_HASH"; break;
}
fprintf (f, " %-11s ", name);
case SHT_FINI_ARRAY: /* .fini_array section. */
case SHT_PREINIT_ARRAY: /* .preinit_array section. */
case SHT_GNU_LIBLIST: /* .gnu.liblist section. */
+ case SHT_GNU_HASH: /* .gnu.hash section. */
return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex);
case SHT_DYNAMIC: /* Dynamic linking information. */
"`%s' [0x%8x]"),
abfd, name, hdr->sh_type);
else if (hdr->sh_type >= SHT_LOOS && hdr->sh_type <= SHT_HIOS)
- /* FIXME: We should handle this section. */
- (*_bfd_error_handler)
- (_("%B: don't know how to handle OS specific section "
- "`%s' [0x%8x]"),
- abfd, name, hdr->sh_type);
+ {
+ /* Unrecognised OS-specific sections. */
+ if ((hdr->sh_flags & SHF_OS_NONCONFORMING) != 0)
+ /* SHF_OS_NONCONFORMING indicates that special knowledge is
+ required to correctly process the section and the file should
+ be rejected with an error message. */
+ (*_bfd_error_handler)
+ (_("%B: don't know how to handle OS specific section "
+ "`%s' [0x%8x]"),
+ abfd, name, hdr->sh_type);
+ else
+ /* Otherwise it should be processed. */
+ return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex);
+ }
else
/* FIXME: We should handle this section. */
(*_bfd_error_handler)
{ ".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 }
};
case SHT_GROUP:
this_hdr->sh_entsize = 4;
break;
+
+ case SHT_GNU_HASH:
+ this_hdr->sh_entsize = bed->s->arch_size == 64 ? 0 : 4;
+ break;
}
if ((asect->flags & SEC_ALLOC) != 0)
break;
case SHT_HASH:
+ case SHT_GNU_HASH:
case SHT_GNU_versym:
/* sh_link is the section header index of the symbol table
this hash table or version table is for. */
{
/* 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
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;
}
{
bfd_size_type phdr_size = elf_tdata (abfd)->program_header_size;
- if (phdr_size == 0)
+ if (phdr_size == (bfd_size_type) -1)
phdr_size = get_program_header_size (abfd, info);
if ((abfd->flags & D_PAGED) == 0
|| sections[0]->lma < phdr_size
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)
elf_elfheader (abfd)->e_phentsize = bed->s->sizeof_phdr;
elf_elfheader (abfd)->e_phnum = alloc;
- if (elf_tdata (abfd)->program_header_size == 0)
+ if (elf_tdata (abfd)->program_header_size == (bfd_size_type) -1)
elf_tdata (abfd)->program_header_size = alloc * bed->s->sizeof_phdr;
else
BFD_ASSERT (elf_tdata (abfd)->program_header_size
.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)
{
if (!info->relocatable)
{
- struct elf_segment_map *m;
- bfd_size_type phdr_size = 0;
+ bfd_size_type phdr_size = elf_tdata (abfd)->program_header_size;
- for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
- phdr_size += bed->s->sizeof_phdr;
+ if (phdr_size == (bfd_size_type) -1)
+ {
+ struct elf_segment_map *m;
+
+ phdr_size = 0;
+ for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
+ phdr_size += bed->s->sizeof_phdr;
- if (phdr_size == 0)
- phdr_size = get_program_header_size (abfd, info);
+ if (phdr_size == 0)
+ phdr_size = get_program_header_size (abfd, info);
+ }
elf_tdata (abfd)->program_header_size = phdr_size;
ret += phdr_size;
projects / deliverable / binutils-gdb.git / blobdiff