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| author | H.J. Lu <hjl.tools@gmail.com> | 2005-03-16 21:52:48 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2005-03-16 21:52:48 +0000 |
| commit | 57316bff0a1aebca7c9f92d125e5366014f0bb1a (patch) | |
| tree | 4a49b5bee243f75a41d85143644c1e99f1ef271b /bfd/elflink.c | |
| parent | 199fea98c99205f0fd3d2d3fd1a2670bdfe8a326 (diff) | |
| download | gdb-57316bff0a1aebca7c9f92d125e5366014f0bb1a.zip gdb-57316bff0a1aebca7c9f92d125e5366014f0bb1a.tar.gz gdb-57316bff0a1aebca7c9f92d125e5366014f0bb1a.tar.bz2 | |
bfd/
2005-03-16 H.J. Lu <hongjiu.lu@intel.com>
* elflink.c (elf_mark_used_section): New.
(bfd_elf_gc_sections): Call elf_gc_mark_section for
non-relocatable link if we don't do GC.
include/
2005-03-16 H.J. Lu <hongjiu.lu@intel.com>
* bfdlink.h (bfd_link_info): Add gc_sections.
ld/
2005-03-16 H.J. Lu <hongjiu.lu@intel.com>
* emultempl/elf32.em (gld${EMULATION_NAME}_finish): Remove
unused empty output sections for non-relocatable link.
* ld.h (args_type): Remove gc_sections.
* ldlang.c (lang_mark_used_section): New.
(lang_gc_sections): Use link_info.gc_sections instead of
command_line.gc_sections.
* ldmain.c (main): Likewise.
* lexsup.c (parse_args): Likewise.
* ldlang.c (lang_process): Call lang_mark_used_section.
* ldmain.c (main): Initialize link_info.gc_sections to FALSE.
ld/testsuite/
2005-03-16 H.J. Lu <hongjiu.lu@intel.com>
* ld-alpha/tlsbin.rd: Updated for empty section removal.
* ld-alpha/tlsbinr.rd: Likewise.
* ld-alpha/tlspic.rd: Likewise.
* ld-arm/mixed-lib.sym: Likewise.
* ld-i386/tlsbin.rd: Likewise.
* ld-i386/tlsnopic.rd: Likewise.
* ld-i386/tlspic.rd: Likewise.
* ld-ia64/tlsbin.rd: Likewise.
* ld-ia64/tlspic.rd: Likewise.
* ld-powerpc/apuinfo.rd: Likewise.
* ld-powerpc/powerpc.exp: Likewise.
* ld-powerpc/tlsexe32.r: Likewise.
* ld-s390/tlsbin.rd: Likewise.
* ld-s390/tlsbin_64.rd: Likewise.
* ld-s390/tlspic.rd: Likewise.
* ld-s390/tlspic_64.rd: Likewise.
* ld-sh/tlsbin-2.d: Likewise.
* ld-sh/tlspic-2.d: Likewise.
* ld-sparc/tlssunbin32.rd: Likewise.
* ld-sparc/tlssunnopic32.rd: Likewise.
* ld-sparc/tlssunpic32.rd: Likewise.
* ld-x86-64/tlsbin.rd: Likewise.
* ld-x86-64/tlspic.rd: Likewise.
Diffstat (limited to 'bfd/elflink.c')
| -rw-r--r-- | bfd/elflink.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c index 1721f3f..9f1be5f 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -8996,7 +8996,28 @@ elf_gc_mark_dynamic_ref_symbol (struct elf_link_hash_entry *h, return TRUE; } + +/* Mark sections containing global symbols. This is called through + elf_link_hash_traverse. */ +static bfd_boolean +elf_mark_used_section (struct elf_link_hash_entry *h, + void *global ATTRIBUTE_UNUSED) +{ + if (h->root.type == bfd_link_hash_warning) + h = (struct elf_link_hash_entry *) h->root.u.i.link; + + if ((h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak)) + { + asection *s = h->root.u.def.section->output_section; + if (s) + s->flags |= SEC_KEEP; + } + + return TRUE; +} + /* Do mark and sweep of unused sections. */ bfd_boolean @@ -9008,6 +9029,17 @@ bfd_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) (asection *, struct bfd_link_info *, Elf_Internal_Rela *, struct elf_link_hash_entry *h, Elf_Internal_Sym *); + if (!info->gc_sections) + { + /* If we are called when info->gc_sections is 0, we will mark + all sections containing global symbols for non-relocable + link. */ + if (!info->relocatable) + elf_link_hash_traverse (elf_hash_table (info), + elf_mark_used_section, NULL); + return TRUE; + } + if (!get_elf_backend_data (abfd)->can_gc_sections || info->relocatable || info->emitrelocations |