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| author | Jakub Jelinek <jakub@redhat.com> | 2006-12-23 09:57:38 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2006-12-23 09:57:38 +0000 |
| commit | 97fed1c92ead4c79dd3de20c4888f28f3049ef56 (patch) | |
| tree | 36012cc9a714bfb63a734327cbc4be512d5dd978 | |
| parent | 9f996475689885295c2be6aa484dc14f753cc3ec (diff) | |
| download | gdb-97fed1c92ead4c79dd3de20c4888f28f3049ef56.zip gdb-97fed1c92ead4c79dd3de20c4888f28f3049ef56.tar.gz gdb-97fed1c92ead4c79dd3de20c4888f28f3049ef56.tar.bz2 | |
* elf-bfd.h (struct elf_backend_data): Add as_needed_cleanup hook.
* elfxx-target.h (elf_backend_as_needed_cleanup): Define.
(elfNN_bed): Add as_needed_cleanup hook.
* elflink.c (elf_link_add_object_symbols): Call it when reverting
hash table changes for unneeded --as-needed input.
* elf64-ppc64.c (elf_backend_as_needed_cleanup): Define.
(ppc64_elf_as_needed_cleanup): New function.
| -rw-r--r-- | bfd/ChangeLog | 10 | ||||
| -rw-r--r-- | bfd/elf-bfd.h | 7 | ||||
| -rw-r--r-- | bfd/elf64-ppc.c | 12 | ||||
| -rw-r--r-- | bfd/elflink.c | 2 | ||||
| -rw-r--r-- | bfd/elfxx-target.h | 4 |
5 files changed, 35 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 93f718b..8913eaa 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,13 @@ +2006-12-23 Jakub Jelinek <jakub@redhat.com> + + * elf-bfd.h (struct elf_backend_data): Add as_needed_cleanup hook. + * elfxx-target.h (elf_backend_as_needed_cleanup): Define. + (elfNN_bed): Add as_needed_cleanup hook. + * elflink.c (elf_link_add_object_symbols): Call it when reverting + hash table changes for unneeded --as-needed input. + * elf64-ppc64.c (elf_backend_as_needed_cleanup): Define. + (ppc64_elf_as_needed_cleanup): New function. + 2006-12-19 Kazu Hirata <kazu@codesourcery.com> * elf32-m68k.c (elf32_m68k_object_p, diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index 5951a6c..e7d84e6 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -711,6 +711,13 @@ struct elf_backend_data bfd_boolean (*check_directives) (bfd *abfd, struct bfd_link_info *info); + /* The AS_NEEDED_CLEANUP function is called once per --as-needed + input file that was not needed by the add_symbols phase of the + ELF backend linker. The function must undo any target specific + changes in the symbol hash table. */ + bfd_boolean (*as_needed_cleanup) + (bfd *abfd, struct bfd_link_info *info); + /* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend linker for every symbol which is defined by a dynamic object and referenced by a regular object. This is called after all the diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c index 6658b5b..35f7cdf 100644 --- a/bfd/elf64-ppc.c +++ b/bfd/elf64-ppc.c @@ -88,6 +88,7 @@ static bfd_vma opd_entry_value #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook #define elf_backend_check_directives ppc64_elf_check_directives +#define elf_backend_as_needed_cleanup ppc64_elf_as_needed_cleanup #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup #define elf_backend_check_relocs ppc64_elf_check_relocs #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref @@ -4247,6 +4248,17 @@ ppc64_elf_check_directives (bfd *ibfd, struct bfd_link_info *info) return TRUE; } +/* Undo hash table changes when an --as-needed input file is determined + not to be needed. */ + +static bfd_boolean +ppc64_elf_as_needed_cleanup (bfd *ibfd ATTRIBUTE_UNUSED, + struct bfd_link_info *info) +{ + ppc_hash_table (info)->dot_syms = NULL; + return TRUE; +} + static bfd_boolean update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, unsigned long r_symndx, bfd_vma r_addend, int tls_type) diff --git a/bfd/elflink.c b/bfd/elflink.c index e7cc062..6af091b 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -4251,6 +4251,8 @@ elf_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info) unsigned int i; /* Restore the symbol table. */ + if (bed->as_needed_cleanup) + (*bed->as_needed_cleanup) (abfd, info); old_hash = (char *) old_tab + tabsize; old_ent = (char *) old_hash + hashsize; sym_hash = elf_sym_hashes (abfd); diff --git a/bfd/elfxx-target.h b/bfd/elfxx-target.h index 9e8ceca..306f3ef 100644 --- a/bfd/elfxx-target.h +++ b/bfd/elfxx-target.h @@ -372,6 +372,9 @@ #ifndef elf_backend_check_directives #define elf_backend_check_directives 0 #endif +#ifndef elf_backend_as_needed_cleanup +#define elf_backend_as_needed_cleanup 0 +#endif #ifndef elf_backend_adjust_dynamic_symbol #define elf_backend_adjust_dynamic_symbol 0 #endif @@ -604,6 +607,7 @@ static struct elf_backend_data elfNN_bed = elf_backend_omit_section_dynsym, elf_backend_check_relocs, elf_backend_check_directives, + elf_backend_as_needed_cleanup, elf_backend_adjust_dynamic_symbol, elf_backend_always_size_sections, elf_backend_size_dynamic_sections, |