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authorAlan Modra <amodra@bigpond.net.au>2003-05-05 14:12:05 +0000
committerAlan Modra <amodra@bigpond.net.au>2003-05-05 14:12:05 +0000
commit17ef9676aa1da8891ab257ad774f497ccac94061 (patch)
treecd4087b78b3b4cca3a8ffdfae5626f14a3cd1d99 /bfd
parentcf55488ed2e506077a5f6506a4c347d8e9aa1cf0 (diff)
downloadgdb-17ef9676aa1da8891ab257ad774f497ccac94061.tar.gz
* elf32-i386.c (allocate_dynrelocs): For undef weak syms with
non-default visibility, a) don't make them dynamic, b) discard space for dynamic relocs. * elf64-x86-64.c (allocate_dynrelocs): Likewise. * elf32-ppc.c (allocate_dynrelocs): For undef weak syms with non-default visibility, a) don't allocate plt entries, b) don't allocate .got relocs, c) discard dyn rel space, (ppc_elf_relocate_section): d) don't generate .got relocs, e) don't generate dynamic relocs. * elf64-ppc.c (allocate_dynrelocs): As above. (ppc64_elf_relocate_section): As above.
Diffstat (limited to 'bfd')
-rw-r--r--bfd/ChangeLog15
-rw-r--r--bfd/elf32-i386.c16
-rw-r--r--bfd/elf32-ppc.c24
-rw-r--r--bfd/elf64-ppc.c24
-rw-r--r--bfd/elf64-x86-64.c14
5 files changed, 76 insertions, 17 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 42c07e82cb5..ca2a5d1f5ea 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,18 @@
+2003-05-05 Alan Modra <amodra@bigpond.net.au>
+
+ * elf32-i386.c (allocate_dynrelocs): For undef weak syms with
+ non-default visibility, a) don't make them dynamic, b) discard
+ space for dynamic relocs.
+ * elf64-x86-64.c (allocate_dynrelocs): Likewise.
+
+ * elf32-ppc.c (allocate_dynrelocs): For undef weak syms with
+ non-default visibility, a) don't allocate plt entries, b) don't
+ allocate .got relocs, c) discard dyn rel space,
+ (ppc_elf_relocate_section): d) don't generate .got relocs, e)
+ don't generate dynamic relocs.
+ * elf64-ppc.c (allocate_dynrelocs): As above.
+ (ppc64_elf_relocate_section): As above.
+
2003-05-05 Andreas Jaeger <aj@suse.de>
* elf64-x86-64.c (allocate_dynrelocs): Don't allocate dynamic
diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c
index ac292a1a9e0..320e9859839 100644
--- a/bfd/elf32-i386.c
+++ b/bfd/elf32-i386.c
@@ -1558,7 +1558,9 @@ allocate_dynrelocs (h, inf)
htab = elf_i386_hash_table (info);
if (htab->elf.dynamic_sections_created
- && h->plt.refcount > 0)
+ && h->plt.refcount > 0
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
{
/* Make sure this symbol is output as a dynamic symbol.
Undefined weak syms won't yet be marked as dynamic. */
@@ -1569,10 +1571,8 @@ allocate_dynrelocs (h, inf)
return FALSE;
}
- if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || h->root.type != bfd_link_hash_undefweak)
- && (info->shared
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)))
+ if (info->shared
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
{
asection *s = htab->splt;
@@ -1695,6 +1695,12 @@ allocate_dynrelocs (h, inf)
pp = &p->next;
}
}
+
+ /* Also discard relocs on undefined weak syms with non-default
+ visibility. */
+ if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak)
+ eh->dyn_relocs = NULL;
}
else if (ELIMINATE_COPY_RELOCS)
{
diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index 69bb0d676e0..81a4b62ccd2 100644
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -2694,7 +2694,9 @@ allocate_dynrelocs (h, inf)
htab = ppc_elf_hash_table (info);
if (htab->elf.dynamic_sections_created
- && h->plt.refcount > 0)
+ && h->plt.refcount > 0
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
{
/* Make sure this symbol is output as a dynamic symbol. */
if (h->dynindx == -1
@@ -2789,8 +2791,10 @@ allocate_dynrelocs (h, inf)
else
htab->got->_raw_size += 4;
dyn = htab->elf.dynamic_sections_created;
- if (info->shared
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
+ if ((info->shared
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
+ && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
+ || eh->elf.root.type != bfd_link_hash_undefweak))
{
/* All the entries we allocated need relocs. */
htab->relgot->_raw_size
@@ -2831,6 +2835,12 @@ allocate_dynrelocs (h, inf)
pp = &p->next;
}
}
+
+ /* Also discard relocs on undefined weak syms with non-default
+ visibility. */
+ if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak)
+ eh->dyn_relocs = NULL;
}
else if (ELIMINATE_COPY_RELOCS)
{
@@ -4793,7 +4803,10 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
}
/* Generate relocs for the dynamic linker. */
- if (info->shared || indx != 0)
+ if ((info->shared || indx != 0)
+ && (h == NULL
+ || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
{
outrel.r_offset = (htab->got->output_section->vma
+ htab->got->output_offset
@@ -4995,6 +5008,9 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
/* Fall thru. */
if ((info->shared
+ && (h == NULL
+ || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak)
&& (MUST_BE_DYN_RELOC (r_type)
|| (h != NULL
&& h->dynindx != -1
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index 1e7a498dab3..e7e81d70500 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -5497,7 +5497,9 @@ allocate_dynrelocs (h, inf)
if (htab->elf.dynamic_sections_created
&& h->dynindx != -1
- && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
+ && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
{
struct plt_entry *pent;
bfd_boolean doneone = FALSE;
@@ -5597,8 +5599,10 @@ allocate_dynrelocs (h, inf)
s->_raw_size
+= (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
dyn = htab->elf.dynamic_sections_created;
- if (info->shared
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
+ if ((info->shared
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
htab->srelgot->_raw_size
+= (gent->tls_type & eh->tls_mask & TLS_GD
? 2 * sizeof (Elf64_External_Rela)
@@ -5634,6 +5638,12 @@ allocate_dynrelocs (h, inf)
pp = &p->next;
}
}
+
+ /* Also discard relocs on undefined weak syms with non-default
+ visibility. */
+ if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak)
+ eh->dyn_relocs = NULL;
}
else if (ELIMINATE_COPY_RELOCS)
{
@@ -7640,7 +7650,10 @@ ppc64_elf_relocate_section (output_bfd, info, input_bfd, input_section,
the case of TLSLD where we'll use one entry per
module. */
*offp = off | 1;
- if (info->shared || indx != 0)
+ if ((info->shared || indx != 0)
+ && (h == NULL
+ || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
{
outrel.r_offset = (htab->sgot->output_section->vma
+ htab->sgot->output_offset
@@ -7864,6 +7877,9 @@ ppc64_elf_relocate_section (output_bfd, info, input_bfd, input_section,
break;
if ((info->shared
+ && (h == NULL
+ || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak)
&& (MUST_BE_DYN_RELOC (r_type)
|| (h != NULL
&& h->dynindx != -1
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index f8d2a0cdd94..c0ce57d708d 100644
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -1385,7 +1385,9 @@ allocate_dynrelocs (h, inf)
htab = elf64_x86_64_hash_table (info);
if (htab->elf.dynamic_sections_created
- && h->plt.refcount > 0)
+ && h->plt.refcount > 0
+ && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak))
{
/* Make sure this symbol is output as a dynamic symbol.
Undefined weak syms won't yet be marked as dynamic. */
@@ -1396,9 +1398,7 @@ allocate_dynrelocs (h, inf)
return FALSE;
}
- if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || h->root.type != bfd_link_hash_undefweak)
- && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
{
asection *s = htab->splt;
@@ -1516,6 +1516,12 @@ allocate_dynrelocs (h, inf)
pp = &p->next;
}
}
+
+ /* Also discard relocs on undefined weak syms with non-default
+ visibility. */
+ if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ && h->root.type == bfd_link_hash_undefweak)
+ eh->dyn_relocs = NULL;
}
else if (ELIMINATE_COPY_RELOCS)
{