/* ELF linking support for BFD.
- Copyright (C) 1995-2022 Free Software Foundation, Inc.
+ Copyright (C) 1995-2023 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
const struct elf_backend_data *bed;
char *new_version;
bool default_sym = *matched;
+ struct elf_link_hash_table *htab;
*skip = false;
*override = NULL;
symbols. */
bfd_elf_link_mark_dynamic_symbol (info, h, sym);
+ htab = elf_hash_table (info);
+
/* NEWDYN and OLDDYN indicate whether the new or old symbol,
respectively, is from a dynamic object. */
olddyn = (oldsec->symbol->flags & BSF_DYNAMIC) != 0;
}
- if (oldbfd != NULL
+ /* Set non_ir_ref_dynamic only when not handling DT_NEEDED entries. */
+ if (!htab->handling_dt_needed
+ && oldbfd != NULL
&& (oldbfd->flags & BFD_PLUGIN) != (abfd->flags & BFD_PLUGIN))
{
if (newdyn != olddyn)
h->root.non_ir_ref_dynamic = true;
hi->root.non_ir_ref_dynamic = true;
}
-
- if ((oldbfd->flags & BFD_PLUGIN) != 0
- && hi->root.type == bfd_link_hash_indirect)
+ else if ((oldbfd->flags & BFD_PLUGIN) != 0
+ && hi->root.type == bfd_link_hash_indirect)
{
/* Change indirect symbol from IR to undefined. */
hi->root.type = bfd_link_hash_undefined;
return true;
}
\f
+/* Return true if GLIBC_ABI_DT_RELR is added to the list of version
+ dependencies successfully. GLIBC_ABI_DT_RELR will be put into the
+ .gnu.version_r section. */
+
+static bool
+elf_link_add_dt_relr_dependency (struct elf_find_verdep_info *rinfo)
+{
+ bfd *glibc_bfd = NULL;
+ Elf_Internal_Verneed *t;
+ Elf_Internal_Vernaux *a;
+ size_t amt;
+ const char *relr = "GLIBC_ABI_DT_RELR";
+
+ /* See if we already know about GLIBC_PRIVATE_DT_RELR. */
+ for (t = elf_tdata (rinfo->info->output_bfd)->verref;
+ t != NULL;
+ t = t->vn_nextref)
+ {
+ const char *soname = bfd_elf_get_dt_soname (t->vn_bfd);
+ /* Skip the shared library if it isn't libc.so. */
+ if (!soname || !startswith (soname, "libc.so."))
+ continue;
+
+ for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
+ {
+ /* Return if GLIBC_PRIVATE_DT_RELR dependency has been
+ added. */
+ if (a->vna_nodename == relr
+ || strcmp (a->vna_nodename, relr) == 0)
+ return true;
+
+ /* Check if libc.so provides GLIBC_2.XX version. */
+ if (!glibc_bfd && startswith (a->vna_nodename, "GLIBC_2."))
+ glibc_bfd = t->vn_bfd;
+ }
+
+ break;
+ }
+
+ /* Skip if it isn't linked against glibc. */
+ if (glibc_bfd == NULL)
+ return true;
+
+ /* This is a new version. Add it to tree we are building. */
+ if (t == NULL)
+ {
+ amt = sizeof *t;
+ t = (Elf_Internal_Verneed *) bfd_zalloc (rinfo->info->output_bfd,
+ amt);
+ if (t == NULL)
+ {
+ rinfo->failed = true;
+ return false;
+ }
+
+ t->vn_bfd = glibc_bfd;
+ t->vn_nextref = elf_tdata (rinfo->info->output_bfd)->verref;
+ elf_tdata (rinfo->info->output_bfd)->verref = t;
+ }
+
+ amt = sizeof *a;
+ a = (Elf_Internal_Vernaux *) bfd_zalloc (rinfo->info->output_bfd, amt);
+ if (a == NULL)
+ {
+ rinfo->failed = true;
+ return false;
+ }
+
+ a->vna_nodename = relr;
+ a->vna_flags = 0;
+ a->vna_nextptr = t->vn_auxptr;
+ a->vna_other = rinfo->vers + 1;
+ ++rinfo->vers;
+
+ t->vn_auxptr = a;
+
+ return true;
+}
+
/* Look through the symbols which are defined in other shared
libraries and referenced here. Update the list of version
dependencies. This will be put into the .gnu.version_r section.
return false;
/* Read the relocations. */
- if (bfd_bread (external_relocs, shdr->sh_size, abfd) != shdr->sh_size)
+ if (bfd_read (external_relocs, shdr->sh_size, abfd) != shdr->sh_size)
return false;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
abfd = abfd->plugin_dummy_bfd;
hdr = &elf_tdata (abfd)->symtab_hdr;
}
- else if ((abfd->flags & DYNAMIC) == 0 || elf_dynsymtab (abfd) == 0)
- hdr = &elf_tdata (abfd)->symtab_hdr;
else
- hdr = &elf_tdata (abfd)->dynsymtab_hdr;
+ {
+ if (elf_use_dt_symtab_p (abfd))
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return false;
+ }
+
+ if ((abfd->flags & DYNAMIC) == 0 || elf_dynsymtab (abfd) == 0)
+ hdr = &elf_tdata (abfd)->symtab_hdr;
+ else
+ hdr = &elf_tdata (abfd)->dynsymtab_hdr;
+ }
symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym;
htab = elf_hash_table (info);
bed = get_elf_backend_data (abfd);
+ if (elf_use_dt_symtab_p (abfd))
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return false;
+ }
+
if ((abfd->flags & DYNAMIC) == 0)
dynamic = false;
else
| DYN_NO_NEEDED)) == 0;
s = bfd_get_section_by_name (abfd, ".dynamic");
- if (s != NULL && s->size != 0)
+ if (s != NULL && s->size != 0 && (s->flags & SEC_HAS_CONTENTS) != 0)
{
bfd_byte *dynbuf;
bfd_byte *extdyn;
shlink = elf_elfsections (abfd)[elfsec]->sh_link;
for (extdyn = dynbuf;
- extdyn <= dynbuf + s->size - bed->s->sizeof_dyn;
+ (size_t) (dynbuf + s->size - extdyn) >= bed->s->sizeof_dyn;
extdyn += bed->s->sizeof_dyn)
{
Elf_Internal_Dyn dyn;
else
_bfd_error_handler
/* xgettext:c-format */
- (_("warning: alignment %u of symbol `%s' in %pB"
- " is smaller than %u in %pB"),
+ (_("warning: alignment %u of normal symbol `%s' in %pB"
+ " is smaller than %u used by the common definition in %pB"),
1 << normal_align, name, normal_bfd,
1 << common_align, common_bfd);
+
+ /* PR 30499: make sure that users understand that this warning is serious. */
+ _bfd_error_handler
+ (_("warning: NOTE: alignment discrepancies can cause real problems. Investigation is advised."));
}
}
if (h->size != 0
&& h->size != isym->st_size
&& ! size_change_ok)
- _bfd_error_handler
- /* xgettext:c-format */
- (_("warning: size of symbol `%s' changed"
- " from %" PRIu64 " in %pB to %" PRIu64 " in %pB"),
- name, (uint64_t) h->size, old_bfd,
- (uint64_t) isym->st_size, abfd);
+ {
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("warning: size of symbol `%s' changed"
+ " from %" PRIu64 " in %pB to %" PRIu64 " in %pB"),
+ name, (uint64_t) h->size, old_bfd,
+ (uint64_t) isym->st_size, abfd);
+
+ /* PR 30499: make sure that users understand that this warning is serious. */
+ _bfd_error_handler
+ (_("warning: NOTE: size discrepancies can cause real problems. Investigation is advised."));
+ }
h->size = isym->st_size;
}
h->unique_global = (flags & BSF_GNU_UNIQUE) != 0;
}
- if (definition && !dynamic)
+ /* Don't add indirect symbols for .symver x, x@FOO aliases
+ in IR. Since all data or text symbols in IR have the
+ same type, value and section, we can't tell if a symbol
+ is an alias of another symbol by their types, values and
+ sections. */
+ if (definition
+ && !dynamic
+ && (abfd->flags & BFD_PLUGIN) == 0)
{
char *p = strchr (name, ELF_VER_CHR);
if (p != NULL && p[1] != ELF_VER_CHR)
size_t best_size = 0;
unsigned long int i;
- /* We have a problem here. The following code to optimize the table
- size requires an integer type with more the 32 bits. If
- BFD_HOST_U_64_BIT is set we know about such a type. */
-#ifdef BFD_HOST_U_64_BIT
if (info->optimize)
{
size_t minsize;
size_t maxsize;
- BFD_HOST_U_64_BIT best_chlen = ~((BFD_HOST_U_64_BIT) 0);
+ uint64_t best_chlen = ~((uint64_t) 0);
bfd *dynobj = elf_hash_table (info)->dynobj;
size_t dynsymcount = elf_hash_table (info)->dynsymcount;
const struct elf_backend_data *bed = get_elf_backend_data (dynobj);
for (i = minsize; i < maxsize; ++i)
{
/* Walk through the array of hashcodes and count the collisions. */
- BFD_HOST_U_64_BIT max;
+ uint64_t max;
unsigned long int j;
unsigned long int fact;
free (counts);
}
else
-#endif /* defined (BFD_HOST_U_64_BIT) */
{
- /* This is the fallback solution if no 64bit type is available or if we
- are not supposed to spend much time on optimizations. We select the
- bucket count using a fixed set of numbers. */
for (i = 0; elf_buckets[i] != 0; i++)
{
best_size = elf_buckets[i];
if (sinfo.failed)
return false;
+ if (info->enable_dt_relr)
+ {
+ elf_link_add_dt_relr_dependency (&sinfo);
+ if (sinfo.failed)
+ return false;
+ }
+
if (elf_tdata (output_bfd)->verref == NULL)
s->flags |= SEC_EXCLUDE;
else
/* Determine any GNU_STACK segment requirements, after the backend
has had a chance to set a default segment size. */
if (info->execstack)
- elf_stack_flags (output_bfd) = PF_R | PF_W | PF_X;
+ {
+ /* If the user has explicitly requested warnings, then generate one even
+ though the choice is the result of another command line option. */
+ if (info->warn_execstack == 1)
+ {
+ if (info->error_execstack)
+ {
+ _bfd_error_handler
+ (_("\
+error: creating an executable stack because of -z execstack command line option"));
+ return false;
+ }
+
+ _bfd_error_handler
+ (_("\
+warning: enabling an executable stack because of -z execstack command line option"));
+ }
+
+ elf_stack_flags (output_bfd) = PF_R | PF_W | PF_X;
+ }
else if (info->noexecstack)
elf_stack_flags (output_bfd) = PF_R | PF_W;
else
{
bfd *inputobj;
asection *notesec = NULL;
+ bfd *noteobj = NULL;
+ bfd *emptyobj = NULL;
int exec = 0;
for (inputobj = info->input_bfds;
s = bfd_get_section_by_name (inputobj, ".note.GNU-stack");
if (s)
{
- if (s->flags & SEC_CODE)
- exec = PF_X;
notesec = s;
+ if (s->flags & SEC_CODE)
+ {
+ noteobj = inputobj;
+ exec = PF_X;
+ /* There is no point in scanning the remaining bfds. */
+ break;
+ }
+ }
+ else if (bed->default_execstack && info->default_execstack)
+ {
+ exec = PF_X;
+ emptyobj = inputobj;
}
- else if (bed->default_execstack)
- exec = PF_X;
}
+
if (notesec || info->stacksize > 0)
- elf_stack_flags (output_bfd) = PF_R | PF_W | exec;
+ {
+ if (exec)
+ {
+ if (info->warn_execstack != 0)
+ {
+ /* PR 29072: Because an executable stack is a serious
+ security risk, make sure that the user knows that it is
+ being enabled despite the fact that it was not requested
+ on the command line. */
+ if (noteobj)
+ {
+ if (info->error_execstack)
+ {
+ _bfd_error_handler (_("\
+error: %s: is triggering the generation of an executable stack (because it has an executable .note.GNU-stack section)"),
+ bfd_get_filename (noteobj));
+ return false;
+ }
+
+ _bfd_error_handler (_("\
+warning: %s: requires executable stack (because the .note.GNU-stack section is executable)"),
+ bfd_get_filename (noteobj));
+ }
+ else if (emptyobj)
+ {
+ if (info->error_execstack)
+ {
+ _bfd_error_handler (_("\
+error: %s: is triggering the generation of an executable stack because it does not have a .note.GNU-stack section"),
+ bfd_get_filename (emptyobj));
+ return false;
+ }
+
+ _bfd_error_handler (_("\
+warning: %s: missing .note.GNU-stack section implies executable stack"),
+ bfd_get_filename (emptyobj));
+ _bfd_error_handler (_("\
+NOTE: This behaviour is deprecated and will be removed in a future version of the linker"));
+ }
+ }
+ }
+ elf_stack_flags (output_bfd) = PF_R | PF_W | exec;
+ }
+
if (notesec && exec && bfd_link_relocatable (info)
&& notesec->output_section != bfd_abs_section_ptr)
notesec->output_section->flags |= SEC_CODE;
return true;
s = bfd_get_section_by_name (abfd, ".dynamic");
- if (s == NULL || s->size == 0)
+ if (s == NULL || s->size == 0 || (s->flags & SEC_HAS_CONTENTS) == 0)
return true;
if (!bfd_malloc_and_get_section (abfd, s, &dynbuf))
extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
- extdyn = dynbuf;
- extdynend = extdyn + s->size;
- for (; extdyn < extdynend; extdyn += extdynsize)
+ for (extdyn = dynbuf, extdynend = dynbuf + s->size;
+ (size_t) (extdynend - extdyn) >= extdynsize;
+ extdyn += extdynsize)
{
Elf_Internal_Dyn dyn;
ssymhead->count++;
}
BFD_ASSERT ((size_t) (ssymhead - ssymbuf) == shndx_count
- && (((bfd_hostptr_t) ssym - (bfd_hostptr_t) ssymbuf)
- == total_size));
+ && (uintptr_t) ssym - (uintptr_t) ssymbuf == total_size);
free (indbuf);
return ssymbuf;
return aval;
}
-#ifdef BFD_HOST_64_BIT
static bfd_vma
ext64l_r_offset (const void *p)
{
| (uint64_t) a->c[7]);
return aval;
}
-#endif
/* When performing a relocatable link, the input relocations are
preserved. But, if they reference global symbols, the indices
}
else
{
-#ifdef BFD_HOST_64_BIT
if (abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
ext_r_off = ext64l_r_offset;
else if (abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
ext_r_off = ext64b_r_offset;
else
-#endif
abort ();
}
size_t sortlen = p - loc;
bfd_vma r_off2 = (*ext_r_off) (loc);
size_t runlen = elt_size;
+ bfd_vma r_off_runend = r_off;
+ bfd_vma r_off_runend_next;
size_t buf_size = 96 * 1024;
while (p + runlen < end
&& (sortlen <= buf_size
|| runlen + elt_size <= buf_size)
- && r_off2 > (*ext_r_off) (p + runlen))
- runlen += elt_size;
+ /* run must not break the ordering of base..loc+1 */
+ && r_off2 > (r_off_runend_next = (*ext_r_off) (p + runlen))
+ /* run must be already sorted */
+ && r_off_runend_next >= r_off_runend)
+ {
+ runlen += elt_size;
+ r_off_runend = r_off_runend_next;
+ }
if (buf == NULL)
{
buf = bfd_malloc (buf_size);
if (ELF_ST_BIND (elfsym->st_info) == STB_GNU_UNIQUE)
elf_tdata (flinfo->output_bfd)->has_gnu_osabi |= elf_gnu_osabi_unique;
- if (name == NULL
- || *name == '\0'
- || (input_sec->flags & SEC_EXCLUDE))
+ if (name == NULL || *name == '\0')
elfsym->st_name = (unsigned long) -1;
else
{
pos = hdr->sh_offset + hdr->sh_size;
amt = bed->s->sizeof_sym * flinfo->output_bfd->symcount;
if (bfd_seek (flinfo->output_bfd, pos, SEEK_SET) == 0
- && bfd_bwrite (symbuf, amt, flinfo->output_bfd) == amt)
+ && bfd_write (symbuf, amt, flinfo->output_bfd) == amt)
{
hdr->sh_size += amt;
ret = true;
case SEC_INFO_TYPE_STABS:
case SEC_INFO_TYPE_EH_FRAME:
case SEC_INFO_TYPE_EH_FRAME_ENTRY:
+ case SEC_INFO_TYPE_SFRAME:
return true;
default:
break;
unsigned int
_bfd_elf_default_action_discarded (asection *sec)
{
+ const struct elf_backend_data *bed;
+ bed = get_elf_backend_data (sec->owner);
+
if (sec->flags & SEC_DEBUGGING)
return PRETEND;
if (strcmp (".eh_frame", sec->name) == 0)
return 0;
+ if (bed->elf_backend_can_make_multiple_eh_frame
+ && strncmp (sec->name, ".eh_frame.", 10) == 0)
+ return 0;
+
+ if (strcmp (".sframe", sec->name) == 0)
+ return 0;
+
if (strcmp (".gcc_except_table", sec->name) == 0)
return 0;
/* If this symbol is defined in a section which we are
discarding, we don't need to keep it. */
- if (isym->st_shndx != SHN_UNDEF
- && isym->st_shndx < SHN_LORESERVE
- && isec->output_section == NULL
- && flinfo->info->non_contiguous_regions
- && flinfo->info->non_contiguous_regions_warnings)
- {
- _bfd_error_handler (_("warning: --enable-non-contiguous-regions "
- "discards section `%s' from '%s'\n"),
- isec->name, bfd_get_filename (isec->owner));
- continue;
- }
-
- if (isym->st_shndx != SHN_UNDEF
- && isym->st_shndx < SHN_LORESERVE
- && bfd_section_removed_from_list (output_bfd,
- isec->output_section))
+ if (isym->st_shndx < SHN_LORESERVE
+ && (isec->output_section == NULL
+ || bfd_section_removed_from_list (output_bfd,
+ isec->output_section)))
continue;
/* Get the name of the symbol. */
contents = flinfo->contents;
}
}
+ else if (!(o->flags & SEC_RELOC)
+ && !bed->elf_backend_write_section
+ && o->sec_info_type == SEC_INFO_TYPE_MERGE)
+ /* A MERGE section that has no relocations doesn't need the
+ contents anymore, they have been recorded earlier. Except
+ if the backend has special provisions for writing sections. */
+ contents = NULL;
else
{
contents = flinfo->contents;
return false;
}
break;
+ case SEC_INFO_TYPE_SFRAME:
+ {
+ /* Merge .sframe sections into the ctf frame encoder
+ context of the output_bfd's section. The final .sframe
+ output section will be written out later. */
+ if (!_bfd_elf_merge_section_sframe (output_bfd, flinfo->info,
+ o, contents))
+ return false;
+ }
+ break;
default:
{
if (! (o->flags & SEC_EXCLUDE))
{
/* Reverse-copy input section to output. */
- if (o->reloc_count != 0
- && (o->size * bed->s->int_rels_per_ext_rel
- != o->reloc_count * address_size))
+ if ((o->size & (address_size - 1)) != 0
+ || (o->reloc_count != 0
+ && (o->size * bed->s->int_rels_per_ext_rel
+ != o->reloc_count * address_size)))
{
_bfd_error_handler
/* xgettext:c-format */
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
struct elf_outext_info eoinfo;
bool merged;
- size_t relativecount = 0;
+ size_t relativecount;
+ size_t relr_entsize;
asection *reldyn = 0;
bfd_size_type amt;
asection *attr_section = NULL;
&& elf_symtab_shndx_list (sec->owner) != NULL)
max_sym_shndx_count = sym_count;
- if (esdo->this_hdr.sh_type == SHT_REL
- || esdo->this_hdr.sh_type == SHT_RELA)
+ esdi = elf_section_data (sec);
+
+ if (esdi->this_hdr.sh_type == SHT_REL
+ || esdi->this_hdr.sh_type == SHT_RELA)
/* Some backends use reloc_count in relocation sections
to count particular types of relocs. Of course,
reloc sections themselves can't have relocations. */
else if (bed->elf_backend_count_relocs)
reloc_count = (*bed->elf_backend_count_relocs) (info, sec);
- esdi = elf_section_data (sec);
-
if ((sec->flags & SEC_RELOC) != 0)
{
size_t ext_size = 0;
later. Use bfd_malloc since it will be freed by
bfd_compress_section_contents. */
unsigned char *contents = esdo->this_hdr.contents;
- if ((o->flags & SEC_ELF_COMPRESS) == 0 || contents != NULL)
+ if (contents != NULL)
abort ();
contents
= (unsigned char *) bfd_malloc (esdo->this_hdr.sh_size);
if (!_bfd_elf_fixup_eh_frame_hdr (info))
return false;
+ /* Finish relative relocations here after regular symbol processing
+ is finished if DT_RELR is enabled. */
+ if (info->enable_dt_relr
+ && bed->finish_relative_relocs
+ && !bed->finish_relative_relocs (info))
+ info->callbacks->einfo
+ (_("%F%P: %pB: failed to finish relative relocations\n"), abfd);
+
/* Since ELF permits relocations to be against local symbols, we
must have the local symbols available when we do the relocations.
Since we would rather only read the local symbols once, and we
/* If backend needs to output some local symbols not present in the hash
table, do it now. */
- if (bed->elf_backend_output_arch_local_syms
- && (info->strip != strip_all || emit_relocs))
+ if (bed->elf_backend_output_arch_local_syms)
{
if (! ((*bed->elf_backend_output_arch_local_syms)
(abfd, info, &flinfo, elf_link_output_symstrtab)))
off, true);
if (bfd_seek (abfd, symtab_shndx_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_bwrite (flinfo.symshndxbuf, amt, abfd) != amt))
+ || (bfd_write (flinfo.symshndxbuf, amt, abfd) != amt))
{
ret = false;
goto return_local_hash_table;
o->reloc_count = 0;
}
+ relativecount = 0;
if (dynamic && info->combreloc && dynobj != NULL)
relativecount = elf_link_sort_relocs (abfd, info, &reldyn);
+ relr_entsize = 0;
+ if (htab->srelrdyn != NULL
+ && htab->srelrdyn->output_section != NULL
+ && htab->srelrdyn->size != 0)
+ {
+ asection *s = htab->srelrdyn->output_section;
+ relr_entsize = elf_section_data (s)->this_hdr.sh_entsize;
+ if (relr_entsize == 0)
+ {
+ relr_entsize = bed->s->arch_size / 8;
+ elf_section_data (s)->this_hdr.sh_entsize = relr_entsize;
+ }
+ }
+
/* If we are linking against a dynamic object, or generating a
shared library, finish up the dynamic linking information. */
if (dynamic)
default:
continue;
case DT_NULL:
- if (relativecount > 0 && dyncon + bed->s->sizeof_dyn < dynconend)
+ if (relativecount != 0)
{
switch (elf_section_data (reldyn)->this_hdr.sh_type)
{
case SHT_REL: dyn.d_tag = DT_RELCOUNT; break;
case SHT_RELA: dyn.d_tag = DT_RELACOUNT; break;
- default: continue;
}
- dyn.d_un.d_val = relativecount;
+ if (dyn.d_tag != DT_NULL
+ && dynconend - dyncon >= bed->s->sizeof_dyn)
+ {
+ dyn.d_un.d_val = relativecount;
+ relativecount = 0;
+ break;
+ }
relativecount = 0;
- break;
+ }
+ if (relr_entsize != 0)
+ {
+ if (dynconend - dyncon >= 3 * bed->s->sizeof_dyn)
+ {
+ asection *s = htab->srelrdyn;
+ dyn.d_tag = DT_RELR;
+ dyn.d_un.d_ptr
+ = s->output_section->vma + s->output_offset;
+ bed->s->swap_dyn_out (dynobj, &dyn, dyncon);
+ dyncon += bed->s->sizeof_dyn;
+
+ dyn.d_tag = DT_RELRSZ;
+ dyn.d_un.d_val = s->size;
+ bed->s->swap_dyn_out (dynobj, &dyn, dyncon);
+ dyncon += bed->s->sizeof_dyn;
+
+ dyn.d_tag = DT_RELRENT;
+ dyn.d_un.d_val = relr_entsize;
+ relr_entsize = 0;
+ break;
+ }
+ relr_entsize = 0;
}
continue;
if (! _bfd_elf_write_section_eh_frame_hdr (abfd, info))
goto error_return;
+ if (! _bfd_elf_write_section_sframe (abfd, info))
+ goto error_return;
+
if (info->callbacks->emit_ctf)
info->callbacks->emit_ctf ();
/* Return the local debug definition section. */
asection *isec = bfd_section_from_elf_index (sec->owner,
sym->st_shndx);
- if ((isec->flags & SEC_DEBUGGING) != 0)
+ if (isec != NULL && (isec->flags & SEC_DEBUGGING) != 0)
return isec;
}
_bfd_elf_adjust_eh_frame_global_symbol, NULL);
}
+ o = bfd_get_section_by_name (output_bfd, ".sframe");
+ if (o != NULL)
+ {
+ asection *i;
+
+ for (i = o->map_head.s; i != NULL; i = i->map_head.s)
+ {
+ if (i->size == 0)
+ continue;
+
+ abfd = i->owner;
+ if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
+ continue;
+
+ if (!init_reloc_cookie_for_section (&cookie, info, i))
+ return -1;
+
+ if (_bfd_elf_parse_sframe (abfd, info, i, &cookie))
+ {
+ if (_bfd_elf_discard_section_sframe (i,
+ bfd_elf_reloc_symbol_deleted_p,
+ &cookie))
+ {
+ if (i->size != i->rawsize)
+ changed = 1;
+ }
+ }
+ fini_reloc_cookie_for_section (&cookie, i);
+ }
+ /* Update the reference to the output .sframe section. Used to
+ determine later if PT_GNU_SFRAME segment is to be generated. */
+ if (!_bfd_elf_set_section_sframe (output_bfd, info))
+ return -1;
+ }
+
for (abfd = info->input_bfds; abfd != NULL; abfd = abfd->link.next)
{
const struct elf_backend_data *bed;
if (info->eh_frame_hdr_type
&& !bfd_link_relocatable (info)
- && _bfd_elf_discard_section_eh_frame_hdr (output_bfd, info))
+ && _bfd_elf_discard_section_eh_frame_hdr (info))
changed = 1;
return changed;
projects / binutils-gdb.git / blobdiff