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authorAlan Modra <amodra@gmail.com>2012-05-22 14:58:15 +0000
committerAlan Modra <amodra@gmail.com>2012-05-22 14:58:15 +0000
commit7e01508c914b74feec6a794fdf5a24a7eb8686b1 (patch)
treeb8d85dc4182e38ac74de9d7f4c0891aba7e04a70
parent5d4f7eb2f0a24d5211810fba26603962af5b2e5a (diff)
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* elflink.c (bfd_elf_discard_info): Look for next .eh_frame if
first one is zero size or discarded. * elf32-ppc.c (ppc_elf_size_dynamic_sections): Set most of glink_eh_frame contents here.. (ppc_elf_finish_dynamic_sections): ..rather than here. Just set offset to .glink.
-rw-r--r--bfd/ChangeLog9
-rw-r--r--bfd/elf32-ppc.c106
-rw-r--r--bfd/elflink.c8
3 files changed, 73 insertions, 50 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 6271710..a92ebe8 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,12 @@
+2012-05-22 Alan Modra <amodra@gmail.com>
+
+ * elflink.c (bfd_elf_discard_info): Look for next .eh_frame if
+ first one is zero size or discarded.
+ * elf32-ppc.c (ppc_elf_size_dynamic_sections): Set most of
+ glink_eh_frame contents here..
+ (ppc_elf_finish_dynamic_sections): ..rather than here. Just set
+ offset to .glink.
+
2012-05-22 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13909
diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index fabd065..9665d39 100644
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -6393,6 +6393,66 @@ ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
}
#undef add_dynamic_entry
+ if (htab->glink_eh_frame != NULL
+ && htab->glink_eh_frame->contents != NULL)
+ {
+ unsigned char *p = htab->glink_eh_frame->contents;
+ bfd_vma val;
+
+ memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
+ /* CIE length (rewrite in case little-endian). */
+ bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
+ p += sizeof (glink_eh_frame_cie);
+ /* FDE length. */
+ val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
+ bfd_put_32 (htab->elf.dynobj, val, p);
+ p += 4;
+ /* CIE pointer. */
+ val = p - htab->glink_eh_frame->contents;
+ bfd_put_32 (htab->elf.dynobj, val, p);
+ p += 4;
+ /* Offset to .glink. Set later. */
+ p += 4;
+ /* .glink size. */
+ bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
+ p += 4;
+ /* Augmentation. */
+ p += 1;
+
+ if (info->shared
+ && htab->elf.dynamic_sections_created)
+ {
+ bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
+ if (adv < 64)
+ *p++ = DW_CFA_advance_loc + adv;
+ else if (adv < 256)
+ {
+ *p++ = DW_CFA_advance_loc1;
+ *p++ = adv;
+ }
+ else if (adv < 65536)
+ {
+ *p++ = DW_CFA_advance_loc2;
+ bfd_put_16 (htab->elf.dynobj, adv, p);
+ p += 2;
+ }
+ else
+ {
+ *p++ = DW_CFA_advance_loc4;
+ bfd_put_32 (htab->elf.dynobj, adv, p);
+ p += 4;
+ }
+ *p++ = DW_CFA_register;
+ *p++ = 65;
+ p++;
+ *p++ = DW_CFA_advance_loc + 4;
+ *p++ = DW_CFA_restore_extended;
+ *p++ = 65;
+ }
+ BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
+ == htab->glink_eh_frame->size);
+ }
+
return TRUE;
}
@@ -9573,17 +9633,10 @@ ppc_elf_finish_dynamic_sections (bfd *output_bfd,
unsigned char *p = htab->glink_eh_frame->contents;
bfd_vma val;
- memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
- /* CIE length (rewrite in case little-endian). */
- bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
p += sizeof (glink_eh_frame_cie);
/* FDE length. */
- val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
- bfd_put_32 (htab->elf.dynobj, val, p);
p += 4;
/* CIE pointer. */
- val = p - htab->glink_eh_frame->contents;
- bfd_put_32 (htab->elf.dynobj, val, p);
p += 4;
/* Offset to .glink. */
val = (htab->glink->output_section->vma
@@ -9592,45 +9645,6 @@ ppc_elf_finish_dynamic_sections (bfd *output_bfd,
+ htab->glink_eh_frame->output_offset);
val -= p - htab->glink_eh_frame->contents;
bfd_put_32 (htab->elf.dynobj, val, p);
- p += 4;
- /* .glink size. */
- bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
- p += 4;
- /* Augmentation. */
- p += 1;
-
- if (info->shared
- && htab->elf.dynamic_sections_created)
- {
- bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
- if (adv < 64)
- *p++ = DW_CFA_advance_loc + adv;
- else if (adv < 256)
- {
- *p++ = DW_CFA_advance_loc1;
- *p++ = adv;
- }
- else if (adv < 65536)
- {
- *p++ = DW_CFA_advance_loc2;
- bfd_put_16 (htab->elf.dynobj, adv, p);
- p += 2;
- }
- else
- {
- *p++ = DW_CFA_advance_loc4;
- bfd_put_32 (htab->elf.dynobj, adv, p);
- p += 4;
- }
- *p++ = DW_CFA_register;
- *p++ = 65;
- p++;
- *p++ = DW_CFA_advance_loc + 4;
- *p++ = DW_CFA_restore_extended;
- *p++ = 65;
- }
- BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
- == htab->glink_eh_frame->size);
if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
&& !_bfd_elf_write_section_eh_frame (output_bfd, info,
diff --git a/bfd/elflink.c b/bfd/elflink.c
index 42f27a0..f18b9df 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -12489,10 +12489,10 @@ bfd_elf_discard_info (bfd *output_bfd, struct bfd_link_info *info)
if (!info->relocatable)
{
eh = bfd_get_section_by_name (abfd, ".eh_frame");
- if (eh != NULL
- && (eh->size == 0
- || bfd_is_abs_section (eh->output_section)))
- eh = NULL;
+ while (eh != NULL
+ && (eh->size == 0
+ || bfd_is_abs_section (eh->output_section)))
+ eh = bfd_get_next_section_by_name (eh);
}
stab = bfd_get_section_by_name (abfd, ".stab");