static boolean elf_map_symbols PARAMS ((bfd *));
static bfd_size_type get_program_header_size PARAMS ((bfd *));
+/* Swap version information in and out. The version information is
+ currently size independent. If that ever changes, this code will
+ need to move into elfcode.h. */
+
+/* Swap in a Verdef structure. */
+
+void
+_bfd_elf_swap_verdef_in (abfd, src, dst)
+ bfd *abfd;
+ 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);
+}
+
+/* Swap out a Verdef structure. */
+
+void
+_bfd_elf_swap_verdef_out (abfd, src, dst)
+ bfd *abfd;
+ 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);
+}
+
+/* Swap in a Verdaux structure. */
+
+void
+_bfd_elf_swap_verdaux_in (abfd, src, dst)
+ bfd *abfd;
+ 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);
+}
+
+/* Swap out a Verdaux structure. */
+
+void
+_bfd_elf_swap_verdaux_out (abfd, src, dst)
+ bfd *abfd;
+ 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);
+}
+
+/* Swap in a Verneed structure. */
+
+void
+_bfd_elf_swap_verneed_in (abfd, src, dst)
+ bfd *abfd;
+ 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);
+}
+
+/* Swap out a Verneed structure. */
+
+void
+_bfd_elf_swap_verneed_out (abfd, src, dst)
+ bfd *abfd;
+ 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);
+}
+
+/* Swap in a Vernaux structure. */
+
+void
+_bfd_elf_swap_vernaux_in (abfd, src, dst)
+ bfd *abfd;
+ 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);
+}
+
+/* Swap out a Vernaux structure. */
+
+void
+_bfd_elf_swap_vernaux_out (abfd, src, dst)
+ bfd *abfd;
+ 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);
+}
+
+/* Swap in a Versym structure. */
+
+void
+_bfd_elf_swap_versym_in (abfd, src, dst)
+ bfd *abfd;
+ const Elf_External_Versym *src;
+ Elf_Internal_Versym *dst;
+{
+ dst->vs_vers = bfd_h_get_16 (abfd, src->vs_vers);
+}
+
+/* Swap out a Versym structure. */
+
+void
+_bfd_elf_swap_versym_out (abfd, src, dst)
+ bfd *abfd;
+ const Elf_Internal_Versym *src;
+ Elf_External_Versym *dst;
+{
+ bfd_h_put_16 (abfd, src->vs_vers, dst->vs_vers);
+}
+
/* Standard ELF hash function. Do not change this function; you will
cause invalid hash tables to be generated. (Well, you would if this
were being used yet.) */
case DT_JMPREL: name = "JMPREL"; break;
case DT_AUXILIARY: name = "AUXILIARY"; stringp = true; break;
case DT_FILTER: name = "FILTER"; stringp = true; break;
+ case DT_VERSYM: name = "VERSYM"; break;
+ case DT_VERDEF: name = "VERDEF"; break;
+ case DT_VERDEFNUM: name = "VERDEFNUM"; break;
+ case DT_VERNEED: name = "VERNEED"; break;
+ case DT_VERNEEDNUM: name = "VERNEEDNUM"; break;
}
fprintf (f, " %-11s ", name);
dynbuf = NULL;
}
+ if ((elf_dynverdef (abfd) != 0 && elf_tdata (abfd)->verdef == NULL)
+ || (elf_dynverref (abfd) != 0 && elf_tdata (abfd)->verref == NULL))
+ {
+ if (! _bfd_elf_slurp_version_tables (abfd))
+ return false;
+ }
+
+ if (elf_dynverdef (abfd) != 0)
+ {
+ Elf_Internal_Verdef *t;
+
+ fprintf (f, "\nVersion definitions:\n");
+ for (t = elf_tdata (abfd)->verdef; t != NULL; t = t->vd_nextdef)
+ {
+ fprintf (f, "%d 0x%2.2x 0x%8.8lx %s\n", t->vd_ndx,
+ t->vd_flags, t->vd_hash, t->vd_nodename);
+ if (t->vd_auxptr->vda_nextptr != NULL)
+ {
+ Elf_Internal_Verdaux *a;
+
+ fprintf (f, "\t");
+ for (a = t->vd_auxptr->vda_nextptr;
+ a != NULL;
+ a = a->vda_nextptr)
+ fprintf (f, "%s ", a->vda_nodename);
+ fprintf (f, "\n");
+ }
+ }
+ }
+
+ if (elf_dynverref (abfd) != 0)
+ {
+ Elf_Internal_Verneed *t;
+
+ fprintf (f, "\nVersion References:\n");
+ for (t = elf_tdata (abfd)->verref; t != NULL; t = t->vn_nextref)
+ {
+ Elf_Internal_Vernaux *a;
+
+ fprintf (f, " required from %s:\n", t->vn_filename);
+ for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
+ fprintf (f, " 0x%8.8lx 0x%2.2x %2.2d %s\n", a->vna_hash,
+ a->vna_flags, a->vna_other, a->vna_nodename);
+ }
+ }
+
return true;
error_return:
ret->got_offset = (bfd_vma) -1;
ret->plt_offset = (bfd_vma) -1;
ret->linker_section_pointer = (elf_linker_section_pointers_t *)0;
+ ret->verinfo.verdef = NULL;
ret->type = STT_NOTYPE;
ret->other = 0;
/* Assume that we have been called by a non-ELF symbol reader.
}
break;
+ case SHT_GNU_verdef:
+ elf_dynverdef (abfd) = shindex;
+ elf_tdata (abfd)->dynverdef_hdr = *hdr;
+ break;
+
+ case SHT_GNU_versym:
+ elf_dynversym (abfd) = shindex;
+ elf_tdata (abfd)->dynversym_hdr = *hdr;
+ break;
+
+ case SHT_GNU_verneed:
+ elf_dynverref (abfd) = shindex;
+ elf_tdata (abfd)->dynverref_hdr = *hdr;
+ break;
+
case SHT_SHLIB:
return true;
this_hdr->sh_type = SHT_REL;
this_hdr->sh_entsize = bed->s->sizeof_rel;
}
- else if (strcmp (asect->name, ".note") == 0)
+ else if (strncmp (asect->name, ".note", 5) == 0)
this_hdr->sh_type = SHT_NOTE;
else if (strncmp (asect->name, ".stab", 5) == 0
&& strcmp (asect->name + strlen (asect->name) - 3, "str") == 0)
this_hdr->sh_type = SHT_STRTAB;
+ else if (strcmp (asect->name, ".gnu.version") == 0)
+ {
+ this_hdr->sh_type = SHT_GNU_versym;
+ this_hdr->sh_entsize = sizeof (Elf_External_Versym);
+ }
+ else if (strcmp (asect->name, ".gnu.version_d") == 0)
+ {
+ this_hdr->sh_type = SHT_GNU_verdef;
+ this_hdr->sh_entsize = 0;
+ this_hdr->sh_info = elf_tdata (abfd)->cverdefs;
+ }
+ else if (strcmp (asect->name, ".gnu.version_r") == 0)
+ {
+ this_hdr->sh_type = SHT_GNU_verneed;
+ this_hdr->sh_entsize = 0;
+ this_hdr->sh_info = elf_tdata (abfd)->cverrefs;
+ }
else if ((asect->flags & SEC_ALLOC) != 0
&& (asect->flags & SEC_LOAD) != 0)
this_hdr->sh_type = SHT_PROGBITS;
case SHT_DYNAMIC:
case SHT_DYNSYM:
+ case SHT_GNU_verneed:
+ case SHT_GNU_verdef:
/* sh_link is the section header index of the string table
- used for the dynamic entries or symbol table. */
+ used for the dynamic entries, or the symbol table, or the
+ version strings. */
s = bfd_get_section_by_name (abfd, ".dynstr");
if (s != NULL)
d->this_hdr.sh_link = elf_section_data (s)->this_idx;
break;
case SHT_HASH:
+ case SHT_GNU_versym:
/* sh_link is the section header index of the symbol table
- this hash table is for. */
+ this hash table or version table is for. */
s = bfd_get_section_by_name (abfd, ".dynsym");
if (s != NULL)
d->this_hdr.sh_link = elf_section_data (s)->this_idx;
pm = &m->next;
}
+ /* For each loadable .note section, add a PT_NOTE segment. We don't
+ use bfd_get_section_by_name, because if we link together
+ nonloadable .note sections and loadable .note sections, we will
+ generate two .note sections in the output file. FIXME: Using
+ names for section types is bogus anyhow. */
+ for (s = abfd->sections; s != NULL; s = s->next)
+ {
+ 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)));
+ if (m == NULL)
+ goto error_return;
+ m->next = NULL;
+ m->p_type = PT_NOTE;
+ m->count = 1;
+ m->sections[0] = s;
+
+ *pm = m;
+ pm = &m->next;
+ }
+ }
+
free (sections);
sections = NULL;
++segs;
}
+ for (s = abfd->sections; s != NULL; s = s->next)
+ {
+ if ((s->flags & SEC_LOAD) != 0
+ && strncmp (s->name, ".note", 5) == 0)
+ {
+ /* We need a PT_NOTE segment. */
+ ++segs;
+ }
+ }
+
/* Let the backend count up any program headers it might need. */
if (bed->elf_backend_additional_program_headers)
{
return ret;
}
+\f
+/* Read in the version information. */
+
+boolean
+_bfd_elf_slurp_version_tables (abfd)
+ bfd *abfd;
+{
+ bfd_byte *contents = NULL;
+
+ if (elf_dynverdef (abfd) != 0)
+ {
+ Elf_Internal_Shdr *hdr;
+ Elf_External_Verdef *everdef;
+ Elf_Internal_Verdef *iverdef;
+ unsigned int i;
+
+ hdr = &elf_tdata (abfd)->dynverdef_hdr;
+
+ elf_tdata (abfd)->verdef =
+ ((Elf_Internal_Verdef *)
+ bfd_zalloc (abfd, hdr->sh_info * sizeof (Elf_Internal_Verdef)));
+ if (elf_tdata (abfd)->verdef == NULL)
+ goto error_return;
+
+ elf_tdata (abfd)->cverdefs = hdr->sh_info;
+ contents = (bfd_byte *) bfd_malloc (hdr->sh_size);
+ 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)
+ goto error_return;
+
+ everdef = (Elf_External_Verdef *) contents;
+ iverdef = elf_tdata (abfd)->verdef;
+ for (i = 0; i < hdr->sh_info; i++, iverdef++)
+ {
+ Elf_External_Verdaux *everdaux;
+ Elf_Internal_Verdaux *iverdaux;
+ unsigned int j;
+
+ _bfd_elf_swap_verdef_in (abfd, everdef, iverdef);
+
+ iverdef->vd_bfd = abfd;
+
+ iverdef->vd_auxptr = ((Elf_Internal_Verdaux *)
+ bfd_alloc (abfd,
+ (iverdef->vd_cnt
+ * sizeof (Elf_Internal_Verdaux))));
+ if (iverdef->vd_auxptr == NULL)
+ goto error_return;
+
+ everdaux = ((Elf_External_Verdaux *)
+ ((bfd_byte *) everdef + iverdef->vd_aux));
+ iverdaux = iverdef->vd_auxptr;
+ for (j = 0; j < iverdef->vd_cnt; j++, iverdaux++)
+ {
+ _bfd_elf_swap_verdaux_in (abfd, everdaux, iverdaux);
+
+ iverdaux->vda_nodename =
+ bfd_elf_string_from_elf_section (abfd, hdr->sh_link,
+ iverdaux->vda_name);
+ if (iverdaux->vda_nodename == NULL)
+ goto error_return;
+
+ if (j + 1 < iverdef->vd_cnt)
+ iverdaux->vda_nextptr = iverdaux + 1;
+ else
+ iverdaux->vda_nextptr = NULL;
+
+ everdaux = ((Elf_External_Verdaux *)
+ ((bfd_byte *) everdaux + iverdaux->vda_next));
+ }
+
+ iverdef->vd_nodename = iverdef->vd_auxptr->vda_nodename;
+
+ if (i + 1 < hdr->sh_info)
+ iverdef->vd_nextdef = iverdef + 1;
+ else
+ iverdef->vd_nextdef = NULL;
+
+ everdef = ((Elf_External_Verdef *)
+ ((bfd_byte *) everdef + iverdef->vd_next));
+ }
+
+ free (contents);
+ contents = NULL;
+ }
+
+ if (elf_dynverref (abfd) != 0)
+ {
+ Elf_Internal_Shdr *hdr;
+ Elf_External_Verneed *everneed;
+ Elf_Internal_Verneed *iverneed;
+ unsigned int i;
+
+ hdr = &elf_tdata (abfd)->dynverref_hdr;
+
+ elf_tdata (abfd)->verref =
+ ((Elf_Internal_Verneed *)
+ bfd_zalloc (abfd, hdr->sh_info * sizeof (Elf_Internal_Verneed)));
+ if (elf_tdata (abfd)->verref == NULL)
+ goto error_return;
+
+ elf_tdata (abfd)->cverrefs = hdr->sh_info;
+
+ contents = (bfd_byte *) bfd_malloc (hdr->sh_size);
+ 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)
+ goto error_return;
+
+ everneed = (Elf_External_Verneed *) contents;
+ iverneed = elf_tdata (abfd)->verref;
+ for (i = 0; i < hdr->sh_info; i++, iverneed++)
+ {
+ Elf_External_Vernaux *evernaux;
+ Elf_Internal_Vernaux *ivernaux;
+ unsigned int j;
+
+ _bfd_elf_swap_verneed_in (abfd, everneed, iverneed);
+
+ iverneed->vn_bfd = abfd;
+
+ iverneed->vn_filename =
+ bfd_elf_string_from_elf_section (abfd, hdr->sh_link,
+ iverneed->vn_file);
+ if (iverneed->vn_filename == NULL)
+ goto error_return;
+
+ iverneed->vn_auxptr =
+ ((Elf_Internal_Vernaux *)
+ bfd_alloc (abfd,
+ iverneed->vn_cnt * sizeof (Elf_Internal_Vernaux)));
+
+ evernaux = ((Elf_External_Vernaux *)
+ ((bfd_byte *) everneed + iverneed->vn_aux));
+ ivernaux = iverneed->vn_auxptr;
+ for (j = 0; j < iverneed->vn_cnt; j++, ivernaux++)
+ {
+ _bfd_elf_swap_vernaux_in (abfd, evernaux, ivernaux);
+
+ ivernaux->vna_nodename =
+ bfd_elf_string_from_elf_section (abfd, hdr->sh_link,
+ ivernaux->vna_name);
+ if (ivernaux->vna_nodename == NULL)
+ goto error_return;
+
+ if (j + 1 < iverneed->vn_cnt)
+ ivernaux->vna_nextptr = ivernaux + 1;
+ else
+ ivernaux->vna_nextptr = NULL;
+
+ evernaux = ((Elf_External_Vernaux *)
+ ((bfd_byte *) evernaux + ivernaux->vna_next));
+ }
+
+ if (i + 1 < hdr->sh_info)
+ iverneed->vn_nextref = iverneed + 1;
+ else
+ iverneed->vn_nextref = NULL;
+
+ everneed = ((Elf_External_Verneed *)
+ ((bfd_byte *) everneed + iverneed->vn_next));
+ }
+
+ free (contents);
+ contents = NULL;
+ }
+
+ return true;
+
+ error_return:
+ if (contents == NULL)
+ free (contents);
+ return false;
+}
+\f
asymbol *
_bfd_elf_make_empty_symbol (abfd)
bfd *abfd;
bfd_symbol_info (symbol, ret);
}
+/* Return whether a symbol name implies a local symbol. In ELF, local
+ symbols generally start with ``.L''. Most targets use this
+ function for the is_local_label_name entry point, but some override
+ it. */
+
+boolean
+_bfd_elf_is_local_label_name (abfd, name)
+ bfd *abfd;
+ const char *name;
+{
+ return name[0] == '.' && name[1] == 'L';
+}
+
alent *
_bfd_elf_get_lineno (ignore_abfd, symbol)
bfd *ignore_abfd;
projects / binutils-gdb.git / commitdiff