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* elf32-s390.c (ELIMINATE_COPY_RELOCS): Define as one. 

(elf_s390_adjust_dynamic_symbol): For weak symbols, copy
	ELF_LINK_NON_GOT_REF from weakdef.
	(elf_s390_copy_indirect_symbol): Test whether the weakdef sym has
	already been adjusted before treating it specially.
	* el64-s390.c: Likwise.
This commit is contained in:
Martin Schwidefsky 2003-05-09 15:29:47 +00:00
parent 82058a735b
commit 64285810f5
3 changed files with 99 additions and 36 deletions
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9
bfd/ChangeLog
View File

@ -1,3 +1,12 @@
2003-05-09 Martin Schwidefsky <schwidefsky@de.ibm.com>
* elf32-s390.c (ELIMINATE_COPY_RELOCS): Define as one.
(elf_s390_adjust_dynamic_symbol): For weak symbols, copy
ELF_LINK_NON_GOT_REF from weakdef.
(elf_s390_copy_indirect_symbol): Test whether the weakdef sym has
already been adjusted before treating it specially.
* el64-s390.c: Likwise.
2003-05-09 Martin Schwidefsky <schwidefsky@de.ibm.com>
* elf32-s390.c (allocate_dynrelocs): For undef weak syms with

63
bfd/elf32-s390.c
View File

@ -383,6 +383,12 @@ elf_s390_is_local_label_name (abfd, name)
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
copying dynamic variables from a shared lib into an app's dynbss
section, and instead use a dynamic relocation to point into the
shared lib. */
#define ELIMINATE_COPY_RELOCS 1
/* The size in bytes of the first entry in the procedure linkage table. */
#define PLT_FIRST_ENTRY_SIZE 32
/* The size in bytes of an entry in the procedure linkage table. */
@ -828,7 +834,18 @@ elf_s390_copy_indirect_symbol (bed, dir, ind)
eind->tls_type = GOT_UNKNOWN;
}
_bfd_elf_link_hash_copy_indirect (bed, dir, ind);
if (ELIMINATE_COPY_RELOCS
&& ind->root.type != bfd_link_hash_indirect
&& (dir->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
/* If called to transfer flags for a weakdef during processing
of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
We clear it ourselves for ELIMINATE_COPY_RELOCS. */
dir->elf_link_hash_flags |=
(ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC
| ELF_LINK_HASH_REF_REGULAR
| ELF_LINK_HASH_REF_REGULAR_NONWEAK));
else
_bfd_elf_link_hash_copy_indirect (bed, dir, ind);
}
static int
@ -1149,7 +1166,8 @@ elf_s390_check_relocs (abfd, info, sec, relocs)
|| h->root.type == bfd_link_hash_defweak
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))))
|| (!info->shared
|| (ELIMINATE_COPY_RELOCS
&& !info->shared
&& (sec->flags & SEC_ALLOC) != 0
&& h != NULL
&& (h->root.type == bfd_link_hash_defweak
@ -1480,8 +1498,6 @@ elf_s390_adjust_dynamic_symbol (info, h)
struct elf_link_hash_entry *h;
{
struct elf_s390_link_hash_table *htab;
struct elf_s390_link_hash_entry * eh;
struct elf_s390_dyn_relocs *p;
asection *s;
unsigned int power_of_two;
@ -1527,6 +1543,10 @@ elf_s390_adjust_dynamic_symbol (info, h)
|| h->weakdef->root.type == bfd_link_hash_defweak);
h->root.u.def.section = h->weakdef->root.u.def.section;
h->root.u.def.value = h->weakdef->root.u.def.value;
if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
h->elf_link_hash_flags
= ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
| (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
return TRUE;
}
@ -1552,20 +1572,26 @@ elf_s390_adjust_dynamic_symbol (info, h)
return TRUE;
}
eh = (struct elf_s390_link_hash_entry *) h;
for (p = eh->dyn_relocs; p != NULL; p = p->next)
if (ELIMINATE_COPY_RELOCS)
{
s = p->sec->output_section;
if (s != NULL && (s->flags & SEC_READONLY) != 0)
break;
}
struct elf_s390_link_hash_entry * eh;
struct elf_s390_dyn_relocs *p;
/* If we didn't find any dynamic relocs in read-only sections, then
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
if (p == NULL)
{
h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
return TRUE;
eh = (struct elf_s390_link_hash_entry *) h;
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
s = p->sec->output_section;
if (s != NULL && (s->flags & SEC_READONLY) != 0)
break;
}
/* If we didn't find any dynamic relocs in read-only sections, then
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
if (p == NULL)
{
h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
return TRUE;
}
}
/* We must allocate the symbol in our .dynbss section, which will
@ -1805,7 +1831,7 @@ allocate_dynrelocs (h, inf)
&& h->root.type == bfd_link_hash_undefweak)
eh->dyn_relocs = NULL;
}
else
else if (ELIMINATE_COPY_RELOCS)
{
/* For the non-shared case, discard space for relocs against
symbols which turn out to need copy relocs or are not
@ -2497,7 +2523,8 @@ elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
&& (! info->symbolic
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))))
|| (!info->shared
|| (ELIMINATE_COPY_RELOCS
&& !info->shared
&& h != NULL
&& h->dynindx != -1
&& (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0

63
bfd/elf64-s390.c
View File

@ -405,6 +405,12 @@ elf_s390_is_local_label_name (abfd, name)
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
copying dynamic variables from a shared lib into an app's dynbss
section, and instead use a dynamic relocation to point into the
shared lib. */
#define ELIMINATE_COPY_RELOCS 1
/* The size in bytes of the first entry in the procedure linkage table. */
#define PLT_FIRST_ENTRY_SIZE 32
/* The size in bytes of an entry in the procedure linkage table. */
@ -782,7 +788,18 @@ elf_s390_copy_indirect_symbol (bed, dir, ind)
eind->tls_type = GOT_UNKNOWN;
}
_bfd_elf_link_hash_copy_indirect (bed, dir, ind);
if (ELIMINATE_COPY_RELOCS
&& ind->root.type != bfd_link_hash_indirect
&& (dir->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
/* If called to transfer flags for a weakdef during processing
of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
We clear it ourselves for ELIMINATE_COPY_RELOCS. */
dir->elf_link_hash_flags |=
(ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC
| ELF_LINK_HASH_REF_REGULAR
| ELF_LINK_HASH_REF_REGULAR_NONWEAK));
else
_bfd_elf_link_hash_copy_indirect (bed, dir, ind);
}
static int
@ -1114,7 +1131,8 @@ elf_s390_check_relocs (abfd, info, sec, relocs)
|| h->root.type == bfd_link_hash_defweak
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))))
|| (!info->shared
|| (ELIMINATE_COPY_RELOCS
&& !info->shared
&& (sec->flags & SEC_ALLOC) != 0
&& h != NULL
&& (h->root.type == bfd_link_hash_defweak
@ -1452,8 +1470,6 @@ elf_s390_adjust_dynamic_symbol (info, h)
struct elf_link_hash_entry *h;
{
struct elf_s390_link_hash_table *htab;
struct elf_s390_link_hash_entry * eh;
struct elf_s390_dyn_relocs *p;
asection *s;
unsigned int power_of_two;
@ -1499,6 +1515,10 @@ elf_s390_adjust_dynamic_symbol (info, h)
|| h->weakdef->root.type == bfd_link_hash_defweak);
h->root.u.def.section = h->weakdef->root.u.def.section;
h->root.u.def.value = h->weakdef->root.u.def.value;
if (ELIMINATE_COPY_RELOCS || info->nocopyreloc)
h->elf_link_hash_flags
= ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
| (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
return TRUE;
}
@ -1524,20 +1544,26 @@ elf_s390_adjust_dynamic_symbol (info, h)
return TRUE;
}
eh = (struct elf_s390_link_hash_entry *) h;
for (p = eh->dyn_relocs; p != NULL; p = p->next)
if (ELIMINATE_COPY_RELOCS)
{
s = p->sec->output_section;
if (s != NULL && (s->flags & SEC_READONLY) != 0)
break;
}
struct elf_s390_link_hash_entry * eh;
struct elf_s390_dyn_relocs *p;
/* If we didn't find any dynamic relocs in read-only sections, then
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
if (p == NULL)
{
h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
return TRUE;
eh = (struct elf_s390_link_hash_entry *) h;
for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
s = p->sec->output_section;
if (s != NULL && (s->flags & SEC_READONLY) != 0)
break;
}
/* If we didn't find any dynamic relocs in read-only sections, then
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
if (p == NULL)
{
h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
return TRUE;
}
}
/* We must allocate the symbol in our .dynbss section, which will
@ -1777,7 +1803,7 @@ allocate_dynrelocs (h, inf)
&& h->root.type == bfd_link_hash_undefweak)
eh->dyn_relocs = NULL;
}
else
else if (ELIMINATE_COPY_RELOCS)
{
/* For the non-shared case, discard space for relocs against
symbols which turn out to need copy relocs or are not
@ -2476,7 +2502,8 @@ elf_s390_relocate_section (output_bfd, info, input_bfd, input_section,
&& (! info->symbolic
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))))
|| (!info->shared
|| (ELIMINATE_COPY_RELOCS
&& !info->shared
&& h != NULL
&& h->dynindx != -1
&& (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0