aboutsummaryrefslogtreecommitdiff
path: root/bfd/elfxx-ia64.c
diff options
context:
space:
mode:
authorRichard Henderson <rth@redhat.com>2002-12-06 01:48:24 +0000
committerRichard Henderson <rth@redhat.com>2002-12-06 01:48:24 +0000
commit2f9bd3f641bd98189e086271ebb00bda8f53bb3a (patch)
treec21d6c4e39a84b36c1665edb6ddec2678b550b21 /bfd/elfxx-ia64.c
parente149065f836626a6d85f4a6396140d9dc7691d87 (diff)
downloadgdb-2f9bd3f641bd98189e086271ebb00bda8f53bb3a.zip
gdb-2f9bd3f641bd98189e086271ebb00bda8f53bb3a.tar.gz
gdb-2f9bd3f641bd98189e086271ebb00bda8f53bb3a.tar.bz2
* elfxx-ia64.c (elfNN_ia64_relax_section): Handle PCREL21BI.
Only send PCREL21B though the plt. Fix installed reloc type. (elfNN_ia64_relocate_section): Give error for dynamic reloc against PCREL22 or PCREL64I; clean up error messages for branch relocs.
Diffstat (limited to 'bfd/elfxx-ia64.c')
-rw-r--r--bfd/elfxx-ia64.c77
1 files changed, 45 insertions, 32 deletions
diff --git a/bfd/elfxx-ia64.c b/bfd/elfxx-ia64.c
index 2f6e1a5..aa4c5ad 100644
--- a/bfd/elfxx-ia64.c
+++ b/bfd/elfxx-ia64.c
@@ -672,7 +672,8 @@ static const bfd_byte oor_ip[48] =
/* These functions do relaxation for IA-64 ELF.
This is primarily to support branches to targets out of range;
- relaxation of R_IA64_LTOFF22X and R_IA64_LDXMOV not yet supported. */
+ relaxation of R_IA64_LTOFF22X and R_IA64_LDXMOV is handled in
+ relocate_section directly. */
static bfd_boolean
elfNN_ia64_relax_section (abfd, sec, link_info, again)
@@ -726,10 +727,14 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
irelend = internal_relocs + sec->reloc_count;
for (irel = internal_relocs; irel < irelend; irel++)
- if (ELFNN_R_TYPE (irel->r_info) == (int) R_IA64_PCREL21B
- || ELFNN_R_TYPE (irel->r_info) == (int) R_IA64_PCREL21M
- || ELFNN_R_TYPE (irel->r_info) == (int) R_IA64_PCREL21F)
- break;
+ {
+ unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
+ if (r_type == R_IA64_PCREL21B
+ || r_type == R_IA64_PCREL21BI
+ || r_type == R_IA64_PCREL21M
+ || r_type == R_IA64_PCREL21F)
+ break;
+ }
/* No branch-type relocations. */
if (irel == irelend)
@@ -755,14 +760,16 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
for (; irel < irelend; irel++)
{
+ unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
bfd_vma symaddr, reladdr, trampoff, toff, roff;
asection *tsec;
struct one_fixup *f;
bfd_size_type amt;
- if (ELFNN_R_TYPE (irel->r_info) != (int) R_IA64_PCREL21B
- && ELFNN_R_TYPE (irel->r_info) != (int) R_IA64_PCREL21M
- && ELFNN_R_TYPE (irel->r_info) != (int) R_IA64_PCREL21F)
+ if (r_type != R_IA64_PCREL21B
+ && r_type != R_IA64_PCREL21BI
+ && r_type != R_IA64_PCREL21M
+ && r_type != R_IA64_PCREL21F)
continue;
/* Get the value of the symbol referred to by the reloc. */
@@ -817,6 +824,11 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
in a branch to the PLT entry. */
if (dyn_i && dyn_i->want_plt2)
{
+ /* Internal branches shouldn't be sent to the PLT.
+ Leave this for now and we'll give an error later. */
+ if (r_type != R_IA64_PCREL21B)
+ continue;
+
tsec = ia64_info->plt_sec;
toff = dyn_i->plt2_offset;
}
@@ -928,7 +940,7 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
hell this doesn't overflow too. */
if (elfNN_ia64_install_value (abfd, contents + roff,
f->trampoff - (roff & (bfd_vma) -4),
- R_IA64_PCREL21B) != bfd_reloc_ok)
+ r_type) != bfd_reloc_ok)
goto error_return;
changed_contents = TRUE;
@@ -4035,29 +4047,6 @@ elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
}
goto finish_pcrel;
- case R_IA64_PCREL21BI:
- case R_IA64_PCREL21F:
- case R_IA64_PCREL21M:
- /* ??? These two are only used for speculation fixup code.
- They should never be dynamic. */
- if (dynamic_symbol_p)
- {
- (*_bfd_error_handler)
- (_("%s: dynamic relocation against speculation fixup"),
- bfd_archive_filename (input_bfd));
- ret_val = FALSE;
- continue;
- }
- if (undef_weak_ref)
- {
- (*_bfd_error_handler)
- (_("%s: speculation fixup against undefined weak symbol"),
- bfd_archive_filename (input_bfd));
- ret_val = FALSE;
- continue;
- }
- goto finish_pcrel;
-
case R_IA64_PCREL21B:
case R_IA64_PCREL60B:
/* We should have created a PLT entry for any dynamic symbol. */
@@ -4089,8 +4078,32 @@ elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
}
goto finish_pcrel;
+ case R_IA64_PCREL21BI:
+ case R_IA64_PCREL21F:
+ case R_IA64_PCREL21M:
case R_IA64_PCREL22:
case R_IA64_PCREL64I:
+ /* The PCREL21BI reloc is specifically not intended for use with
+ dynamic relocs. PCREL21F and PCREL21M are used for speculation
+ fixup code, and thus probably ought not be dynamic. The
+ PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
+ if (dynamic_symbol_p)
+ {
+ const char *msg;
+
+ if (r_type == R_IA64_PCREL21BI)
+ msg = _("%s: @internal branch to dynamic symbol %s");
+ else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M)
+ msg = _("%s: speculation fixup to dynamic symbol %s");
+ else
+ msg = _("%s: @pcrel relocation against dynamic symbol %s");
+ (*_bfd_error_handler) (msg, bfd_archive_filename (input_bfd),
+ h->root.root.string);
+ ret_val = FALSE;
+ continue;
+ }
+ goto finish_pcrel;
+
finish_pcrel:
/* Make pc-relative. */
value -= (input_section->output_section->vma