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| author | Alan Modra <amodra@gmail.com> | 2000-10-07 12:52:15 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2000-10-07 12:52:15 +0000 |
| commit | 44852b190c1f9b646fa36abd214dab0f5f82e773 (patch) | |
| tree | 6067b0be5cd8c5f898066e78270b55a350e7ba6b | |
| parent | d742f2c2204a85d8196bcda35f22fa2da93aed70 (diff) | |
| download | gdb-44852b190c1f9b646fa36abd214dab0f5f82e773.zip gdb-44852b190c1f9b646fa36abd214dab0f5f82e773.tar.gz gdb-44852b190c1f9b646fa36abd214dab0f5f82e773.tar.bz2 | |
Make elf section symbols global for link-once sections.
| -rw-r--r-- | bfd/ChangeLog | 4 | ||||
| -rw-r--r-- | bfd/elf.c | 8 | ||||
| -rw-r--r-- | gas/ChangeLog | 7 | ||||
| -rw-r--r-- | gas/config/obj-elf.c | 15 | ||||
| -rw-r--r-- | gas/write.c | 2 |
5 files changed, 32 insertions, 4 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 7069fb8..3347191 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,7 @@ +2000-10-07 Alan Modra <alan@linuxcare.com.au> + + * elf.c (swap_out_syms): Handle global section symbols. + 2000-10-05 DJ Delorie <dj@redhat.com> * peigen.c (_bfd_pei_swap_scnhdr_out): note extended relocs @@ -4352,8 +4352,9 @@ swap_out_syms (abfd, sttp, relocatable_p) flagword flags = syms[idx]->flags; int type; - if (flags & BSF_SECTION_SYM) - /* Section symbols have no names. */ + /* Section symbols usually have no name. The exception is + link-once section symbols, which we make global. */ + if ((flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM) sym.st_name = 0; else { @@ -4461,7 +4462,8 @@ swap_out_syms (abfd, sttp, relocatable_p) type = (*bed->elf_backend_get_symbol_type) (&type_ptr->internal_elf_sym, type); if (flags & BSF_SECTION_SYM) - sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); + sym.st_info = ELF_ST_INFO ((flags & BSF_GLOBAL + ? STB_GLOBAL : STB_LOCAL), STT_SECTION); else if (bfd_is_com_section (syms[idx]->section)) sym.st_info = ELF_ST_INFO (STB_GLOBAL, type); else if (bfd_is_und_section (syms[idx]->section)) diff --git a/gas/ChangeLog b/gas/ChangeLog index ff9c3b8..7533a9e 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,10 @@ +2000-10-07 Alan Modra <alan@linuxcare.com.au> + + * write.c (write_relocs): Fix a comment. + + * config/obj-elf.c (elf_frob_symbol): Make section syms global on + link-once sections. + 2000-10-05 Jim Wilson <wilson@cygnus.com> * config/tc-ia64.c (resources_match): Handle IA64_RS_PRr. diff --git a/gas/config/obj-elf.c b/gas/config/obj-elf.c index 4e7f3a36..0f49ab6 100644 --- a/gas/config/obj-elf.c +++ b/gas/config/obj-elf.c @@ -1742,6 +1742,21 @@ elf_frob_symbol (symp, puntp) && S_IS_DEFINED (symp)) symbol_get_bfdsym (symp)->flags |= BSF_OBJECT; #endif + + if (symbol_section_p (symp)) + { + asection *symsec = S_GET_SEGMENT (symp); + + if ((bfd_get_section_flags (stdoutput, symsec) & SEC_LINK_ONCE) != 0 + || strncmp (segment_name (symsec), ".gnu.linkonce", + sizeof ".gnu.linkonce" - 1) == 0) + { + /* Make section syms global on ELF linkonce sections. + This way, any reference to the section symbol will + resolve to the section that actually stays in. */ + S_SET_EXTERNAL (symp); + } + } } void diff --git a/gas/write.c b/gas/write.c index 907ba2f..802d461 100644 --- a/gas/write.c +++ b/gas/write.c @@ -1008,7 +1008,7 @@ write_relocs (abfd, sec, xxx) } /* If this is an undefined symbol which was equated to another - symbol, then use generate the reloc against the latter symbol + symbol, then generate the reloc against the latter symbol rather than the former. */ sym = fixp->fx_addsy; while (symbol_equated_p (sym) |