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authorAlan Modra <amodra@bigpond.net.au>2005-02-02 02:36:35 +0000
committerAlan Modra <amodra@bigpond.net.au>2005-02-02 02:36:35 +0000
commita5915fbd1ffa0a964d822da56f10565be28b7941 (patch)
tree01100e5ec554f9af207e7ab72f0cfbeb313e8c66
parent4940f39d30174a85309c5eebd014066f5b53e699 (diff)
downloadgdb-a5915fbd1ffa0a964d822da56f10565be28b7941.tar.gz
* elflink.c (elf_smash_syms): Expand comments.
(elf_link_add_object_symbols): Only call elf_smash_syms for as-needed dynamic objects.
-rw-r--r--bfd/ChangeLog12
-rw-r--r--bfd/elflink.c12
2 files changed, 18 insertions, 6 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 699bcc15865..c942cffca5d 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,9 @@
2005-02-02 Alan Modra <amodra@bigpond.net.au>
+ * elflink.c (elf_smash_syms): Expand comments.
+ (elf_link_add_object_symbols): Only call elf_smash_syms for
+ as-needed dynamic objects.
+
* elfxx-ia64.c (elfNN_ia64_new_elf_hash_entry): Don't clear
everything, just the field specific to ia64.
* elf64-hppa.c (elf64_hppa_new_dyn_hash_entry): Likewise.
@@ -93,7 +97,7 @@
* elf32-arm.c (elf32_arm_symbian_special_sections): Do not set
SHF_WRITE for .init_array, .fini_array, and .preinit_array.
-
+
2005-01-31 Nick Clifton <nickc@redhat.com>
* confg.bfd: Make targets scheduled for obsoletion (m68k-lynxos,
@@ -115,9 +119,9 @@
* bin-in2.h (bfd_elf32_arm_set_target_relocs): Update prototype.
* elf32-arm.c (elf32_arm_link_hash_table): Add fix_v4bx flag.
(bfd_elf32_arm_set_target_relocs): Add formal parameter fix_v4bx for
- passing flag value from ld. Set flag value in global hash table entry.
+ passing flag value from ld. Set flag value in global hash table entry.
(elf32_arm_final_link_relocate): Add code to implement R_ARM_V4BX
- relocation.
+ relocation.
2005-01-27 Andrew Cagney <cagney@gnu.org>
@@ -126,7 +130,7 @@
2005-01-25 Mark Mitchell <mark@codesourcery.com>
* elf32-arm.c (elf_backend_default_use_rela_p): Define to zero for
- SymbianOS.
+ SymbianOS.
2005-01-25 Alexandre Oliva <aoliva@redhat.com>
diff --git a/bfd/elflink.c b/bfd/elflink.c
index 9d07c4c1619..0e8bff4c557 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -2815,7 +2815,12 @@ elf_add_dt_needed_tag (bfd *abfd,
/* Called via elf_link_hash_traverse, elf_smash_syms sets all symbols
belonging to NOT_NEEDED to bfd_link_hash_new. We know there are no
- references to these symbols. */
+ references from regular objects to these symbols.
+
+ ??? Should we do something about references from other dynamic
+ obects? If not, we potentially lose some warnings about undefined
+ symbols. But how can we recover the initial undefined / undefweak
+ state? */
struct elf_smash_syms_data
{
@@ -4094,8 +4099,11 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
free (isymbuf);
isymbuf = NULL;
- if (!add_needed)
+ if (!add_needed
+ && (elf_dyn_lib_class (abfd) & DYN_AS_NEEDED) != 0)
{
+ /* Remove symbols defined in an as-needed shared lib that wasn't
+ needed. */
struct elf_smash_syms_data inf;
inf.not_needed = abfd;
inf.htab = hash_table;