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-rw-r--r--bfd/ChangeLog13
-rw-r--r--bfd/elf-bfd.h2
-rw-r--r--bfd/elf-m10300.c41
-rw-r--r--bfd/elf32-frv.c39
-rw-r--r--bfd/elf64-alpha.c32
-rw-r--r--bfd/elflink.c106
6 files changed, 88 insertions, 145 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 684d7f7..18afd0f 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,16 @@
+2005-08-16 Alan Modra <amodra@bigpond.net.au>
+
+ * elf-bfd.h (_bfd_elf_define_linkage_sym): Declare.
+ * elflink.c (_bfd_elf_define_linkage_sym): New function, extracted
+ from..
+ (_bfd_elf_create_got_section): ..here.
+ (_bfd_elf_link_create_dynamic_sections): Call it for _DYNAMIC.
+ (_bfd_elf_create_dynamic_sections): ..and _PROCEDURE_LINKAGE_TABLE_.
+ * elf-m10300.c (_bfd_mn10300_elf_create_got_section): Use
+ _bfd_elf_define_linkage_sym.
+ * elf32-frv.c (_frv_create_got_section): Likewise.
+ * elf64-alpha.c (elf64_alpha_create_dynamic_sections): Likewise.
+
2005-08-15 Paul Brook <paul@codesourcery.com>
* elf32-arm.c (elf32_arm_howto_table_1): Make R_ARM_PLT32 the same as
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index e238a95..eae124a 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -1639,6 +1639,8 @@ extern bfd_boolean _bfd_elf_create_dynamic_sections
(bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_elf_create_got_section
(bfd *, struct bfd_link_info *);
+extern struct elf_link_hash_entry *_bfd_elf_define_linkage_sym
+ (bfd *, struct bfd_link_info *, asection *, const char *);
extern bfd_boolean _bfd_elfcore_make_pseudosection
(bfd *, char *, size_t, ufile_ptr);
diff --git a/bfd/elf-m10300.c b/bfd/elf-m10300.c
index 030af7e..b3f8044 100644
--- a/bfd/elf-m10300.c
+++ b/bfd/elf-m10300.c
@@ -542,7 +542,6 @@ _bfd_mn10300_elf_create_got_section (abfd, info)
flagword flags;
flagword pltflags;
asection * s;
- struct bfd_link_hash_entry * bh;
struct elf_link_hash_entry * h;
const struct elf_backend_data * bed = get_elf_backend_data (abfd);
int ptralign;
@@ -581,24 +580,12 @@ _bfd_mn10300_elf_create_got_section (abfd, info)
|| ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
return FALSE;
- if (bed->want_plt_sym)
- {
- /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
- .plt section. */
- bh = NULL;
- if (! (_bfd_generic_link_add_one_symbol
- (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
- (bfd_vma) 0, (const char *) NULL, FALSE,
- get_elf_backend_data (abfd)->collect, &bh)))
- return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->def_regular = 1;
- h->type = STT_OBJECT;
-
- if (info->shared
- && ! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
+ /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
+ .plt section. */
+ if (bed->want_plt_sym
+ && !_bfd_elf_define_linkage_sym (abfd, info, s,
+ "_PROCEDURE_LINKAGE_TABLE_"))
+ return FALSE;
s = bfd_make_section_with_flags (abfd, ".got", flags);
if (s == NULL
@@ -617,20 +604,10 @@ _bfd_mn10300_elf_create_got_section (abfd, info)
(or .got.plt) section. We don't do this in the linker script
because we don't want to define the symbol if we are not creating
a global offset table. */
- bh = NULL;
- if (!(_bfd_generic_link_add_one_symbol
- (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
- 0, (const char *) NULL, FALSE, bed->collect, &bh)))
- return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->def_regular = 1;
- h->type = STT_OBJECT;
-
- if (info->shared
- && ! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
-
+ h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
elf_hash_table (info)->hgot = h;
+ if (h == NULL)
+ return FALSE;
/* The first bit of the global offset table is the header. */
s->size += bed->got_header_size;
diff --git a/bfd/elf32-frv.c b/bfd/elf32-frv.c
index 5d60432..e839cd1 100644
--- a/bfd/elf32-frv.c
+++ b/bfd/elf32-frv.c
@@ -4301,22 +4301,15 @@ _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
(or .got.plt) section. We don't do this in the linker script
because we don't want to define the symbol if we are not creating
a global offset table. */
- bh = NULL;
- if (!(_bfd_generic_link_add_one_symbol
- (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
- 0, (const char *) NULL, FALSE, bed->collect, &bh)))
+ h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
+ elf_hash_table (info)->hgot = h;
+ if (h == NULL)
return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->def_regular = 1;
- h->type = STT_OBJECT;
- /* h->other = STV_HIDDEN; */ /* Should we? */
/* Machine-specific: we want the symbol for executables as
well. */
if (! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
-
- elf_hash_table (info)->hgot = h;
}
/* The first bit of the global offset table is the header. */
@@ -4399,26 +4392,12 @@ _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
/* FRV-specific: remember it. */
frvfdpic_plt_section (info) = s;
- if (bed->want_plt_sym)
- {
- /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
- .plt section. */
- struct elf_link_hash_entry *h;
- struct bfd_link_hash_entry *bh = NULL;
-
- if (! (_bfd_generic_link_add_one_symbol
- (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
- FALSE, get_elf_backend_data (abfd)->collect, &bh)))
- return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->def_regular = 1;
- h->type = STT_OBJECT;
- /* h->other = STV_HIDDEN; */ /* Should we? */
-
- if (! info->executable
- && ! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
+ /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
+ .plt section. */
+ if (bed->want_plt_sym
+ && !_bfd_elf_define_linkage_sym (abfd, info, s,
+ "_PROCEDURE_LINKAGE_TABLE_"))
+ return FALSE;
/* FRV-specific: we want rel relocations for the plt. */
s = bfd_make_section_with_flags (abfd, ".rel.plt",
diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c
index 2868a02..0472d7f 100644
--- a/bfd/elf64-alpha.c
+++ b/bfd/elf64-alpha.c
@@ -1232,7 +1232,6 @@ elf64_alpha_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
asection *s;
flagword flags;
struct elf_link_hash_entry *h;
- struct bfd_link_hash_entry *bh;
/* We need to create .plt, .rela.plt, .got, and .rela.got sections. */
@@ -1245,17 +1244,8 @@ elf64_alpha_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
/* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
.plt section. */
- bh = NULL;
- if (! (_bfd_generic_link_add_one_symbol
- (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
- (bfd_vma) 0, (const char *) NULL, FALSE,
- get_elf_backend_data (abfd)->collect, &bh)))
- return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->def_regular = 1;
- h->type = STT_OBJECT;
-
- if (info->shared && ! bfd_elf_link_record_dynamic_symbol (info, h))
+ if (!_bfd_elf_define_linkage_sym (abfd, info, s,
+ "_PROCEDURE_LINKAGE_TABLE_"))
return FALSE;
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
@@ -1292,21 +1282,11 @@ elf64_alpha_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
dynobj's .got section. We don't do this in the linker script
because we don't want to define the symbol if we are not creating
a global offset table. */
- bh = NULL;
- if (!(_bfd_generic_link_add_one_symbol
- (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL,
- alpha_elf_tdata(abfd)->got, (bfd_vma) 0, (const char *) NULL,
- FALSE, get_elf_backend_data (abfd)->collect, &bh)))
- return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->def_regular = 1;
- h->type = STT_OBJECT;
-
- if (info->shared
- && ! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
-
+ h = _bfd_elf_define_linkage_sym (abfd, info, alpha_elf_tdata(abfd)->got,
+ "_GLOBAL_OFFSET_TABLE_");
elf_hash_table (info)->hgot = h;
+ if (h == NULL)
+ return FALSE;
return TRUE;
}
diff --git a/bfd/elflink.c b/bfd/elflink.c
index 7b7cddd..14096aa 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -27,13 +27,51 @@
#include "safe-ctype.h"
#include "libiberty.h"
+/* Define a symbol in a dynamic linkage section. */
+
+struct elf_link_hash_entry *
+_bfd_elf_define_linkage_sym (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *sec,
+ const char *name)
+{
+ struct elf_link_hash_entry *h;
+ struct bfd_link_hash_entry *bh;
+
+ h = elf_link_hash_lookup (elf_hash_table (info), name, FALSE, FALSE, FALSE);
+ if (h != NULL)
+ {
+ /* Zap symbol defined in an as-needed lib that wasn't linked.
+ This is a symptom of a larger problem: Absolute symbols
+ defined in shared libraries can't be overridden, because we
+ lose the link to the bfd which is via the symbol section. */
+ h->root.type = bfd_link_hash_new;
+ }
+
+ bh = &h->root;
+ if (!_bfd_generic_link_add_one_symbol (info, abfd, name, BSF_GLOBAL,
+ sec, 0, NULL, FALSE,
+ get_elf_backend_data (abfd)->collect,
+ &bh))
+ return NULL;
+ h = (struct elf_link_hash_entry *) bh;
+ h->def_regular = 1;
+ h->type = STT_OBJECT;
+ h->other = (h->other & ~ELF_ST_VISIBILITY (-1)) | STV_HIDDEN;
+
+ if (!info->executable
+ && !bfd_elf_link_record_dynamic_symbol (info, h))
+ return NULL;
+
+ return h;
+}
+
bfd_boolean
_bfd_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
{
flagword flags;
asection *s;
struct elf_link_hash_entry *h;
- struct bfd_link_hash_entry *bh;
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
int ptralign;
@@ -78,21 +116,10 @@ _bfd_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
(or .got.plt) section. We don't do this in the linker script
because we don't want to define the symbol if we are not creating
a global offset table. */
- bh = NULL;
- if (!(_bfd_generic_link_add_one_symbol
- (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s,
- 0, NULL, FALSE, bed->collect, &bh)))
- return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->def_regular = 1;
- h->type = STT_OBJECT;
- h->other = STV_HIDDEN;
-
- if (! info->executable
- && ! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
-
+ h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
elf_hash_table (info)->hgot = h;
+ if (h == NULL)
+ return FALSE;
}
/* The first bit of the global offset table is the header. */
@@ -132,8 +159,6 @@ _bfd_elf_link_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
{
flagword flags;
register asection *s;
- struct elf_link_hash_entry *h;
- struct bfd_link_hash_entry *bh;
const struct elf_backend_data *bed;
if (! is_elf_hash_table (info->hash))
@@ -212,27 +237,7 @@ _bfd_elf_link_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
section. We don't want to define it if there is no .dynamic
section, since on some ELF platforms the start up code examines it
to decide how to initialize the process. */
- h = elf_link_hash_lookup (elf_hash_table (info), "_DYNAMIC",
- FALSE, FALSE, FALSE);
- if (h != NULL)
- {
- /* Zap symbol defined in an as-needed lib that wasn't linked.
- This is a symptom of a larger problem: Absolute symbols
- defined in shared libraries can't be overridden, because we
- lose the link to the bfd which is via the symbol section. */
- h->root.type = bfd_link_hash_new;
- }
- bh = &h->root;
- if (! (_bfd_generic_link_add_one_symbol
- (info, abfd, "_DYNAMIC", BSF_GLOBAL, s, 0, NULL, FALSE,
- get_elf_backend_data (abfd)->collect, &bh)))
- return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->def_regular = 1;
- h->type = STT_OBJECT;
-
- if (! info->executable
- && ! bfd_elf_link_record_dynamic_symbol (info, h))
+ if (!_bfd_elf_define_linkage_sym (abfd, info, s, "_DYNAMIC"))
return FALSE;
s = bfd_make_section_with_flags (abfd, ".hash",
@@ -282,25 +287,12 @@ _bfd_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
|| ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
return FALSE;
- if (bed->want_plt_sym)
- {
- /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
- .plt section. */
- struct elf_link_hash_entry *h;
- struct bfd_link_hash_entry *bh = NULL;
-
- if (! (_bfd_generic_link_add_one_symbol
- (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, 0, NULL,
- FALSE, get_elf_backend_data (abfd)->collect, &bh)))
- return FALSE;
- h = (struct elf_link_hash_entry *) bh;
- h->def_regular = 1;
- h->type = STT_OBJECT;
-
- if (! info->executable
- && ! bfd_elf_link_record_dynamic_symbol (info, h))
- return FALSE;
- }
+ /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
+ .plt section. */
+ if (bed->want_plt_sym
+ && !_bfd_elf_define_linkage_sym (abfd, info, s,
+ "_PROCEDURE_LINKAGE_TABLE_"))
+ return FALSE;
s = bfd_make_section_with_flags (abfd,
(bed->default_use_rela_p
generated by cgit v1.1 at 2024-11-27 16:44:30 +0000