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authorH.J. Lu <hjl.tools@gmail.com>2006-04-05 13:37:32 +0000
committerH.J. Lu <hjl.tools@gmail.com>2006-04-05 13:37:32 +0000
commitc0d5a53d5200405a36d98646d8d3387154a21bf9 (patch)
treeeef5848af4b6ed05a7a0408ec7f411606682a519 /bfd/elflink.c
parent580a2b6ef36f848f0661ecf07fdc6ae5c97470a4 (diff)
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2006-04-05 H.J. Lu <hongjiu.lu@intel.com>
PR ld/2411 * elflink.c (check_dynsym): New. (elf_link_output_extsym): Use it. (bfd_elf_final_link): Likewise.
Diffstat (limited to 'bfd/elflink.c')
-rw-r--r--bfd/elflink.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c
index f3098ae..0900220 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -6204,6 +6204,24 @@ elf_link_output_sym (struct elf_final_link_info *finfo,
return TRUE;
}
+/* Return TRUE if the dynamic symbol SYM in ABFD is supported. */
+
+static bfd_boolean
+check_dynsym (bfd *abfd, Elf_Internal_Sym *sym)
+{
+ if (sym->st_shndx > SHN_HIRESERVE)
+ {
+ /* The gABI doesn't support dynamic symbols in output sections
+ beyond 64k. */
+ (*_bfd_error_handler)
+ (_("%B: Too many sections: %d (>= %d)"),
+ abfd, bfd_count_sections (abfd), SHN_LORESERVE);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return FALSE;
+ }
+ return TRUE;
+}
+
/* For DSOs loaded in via a DT_NEEDED entry, emulate ld.so in
allowing an unsatisfied unversioned symbol in the DSO to match a
versioned symbol that would normally require an explicit version.
@@ -6636,6 +6654,11 @@ elf_link_output_extsym (struct elf_link_hash_entry *h, void *data)
sym.st_name = h->dynstr_index;
esym = finfo->dynsym_sec->contents + h->dynindx * bed->s->sizeof_sym;
+ if (! check_dynsym (finfo->output_bfd, &sym))
+ {
+ eoinfo->failed = TRUE;
+ return FALSE;
+ }
bed->s->swap_symbol_out (finfo->output_bfd, &sym, esym, 0);
bucketcount = elf_hash_table (finfo->info)->bucketcount;
@@ -8313,6 +8336,8 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
indx = elf_section_data (s)->this_idx;
BFD_ASSERT (indx > 0);
sym.st_shndx = indx;
+ if (! check_dynsym (abfd, &sym))
+ return FALSE;
sym.st_value = s->vma;
dest = dynsym + dynindx * bed->s->sizeof_sym;
if (last_local < dynindx)
@@ -8347,6 +8372,8 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
sym.st_shndx =
elf_section_data (s->output_section)->this_idx;
+ if (! check_dynsym (abfd, &sym))
+ return FALSE;
sym.st_value = (s->output_section->vma
+ s->output_offset
+ e->isym.st_value);