From f5fa8ca231d47662321addbfbde105e2bed0be07 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Fri, 13 Apr 2001 00:34:36 +0000 Subject: bfd/ * libbfd-in.h (_bfd_merge_section): New. (_bfd_write_merged_section): New. (_bfd_merged_section_offset): New. * libbfd.h: Rebuilt. * linker.c (_bfd_generic_link_output_symbols): Handle discard_sec_merge. * aoutx.h (aout_link_write_symbols): Likewise. * pdp11.c (aout_link_write_symbols): Likewise. * elflink.h (elf_link_add_object_symbols): Call _bfd_merge_section. (elf_bfd_final_link): Adjust global symbols pointing into SEC_MERGE sections. (elf_link_sec_merge_syms): New. (elf_link_input_bfd): Call _bfd_merged_section_offset and _bfd_write_merged_section. Handle discard_sec_merge. * elf-bfd.h (struct elf_link_hash_table): Add merge_info field. (struct bfd_elf_section_data): Likewise. * elf.c (_bfd_elf_make_section_from_shdr): Set SEC_MERGE and SEC_STRINGS section flags and entsize from their ELF counterparts. (_bfd_elf_link_hash_table_init): Initialize merge_info. (elf_fake_sections): Set SHF_MERGE, SHF_STRINGS and sh_entsize from their BFD counterparts. * merge.c: New file. * Makefile.am: Add strtab.lo. * Makefile.in: Rebuilt. include/ * bfdlink.h (bfd_link_discard): Add discard_sec_merge. gas/ * config/obj-elf.c (obj_elf_change_section): Add entsize argument, handle SHF_MERGE and SHF_STRINGS. (obj_elf_parse_section_letters): Set SHF_MERGE and SHF_STRINGS. (obj_elf_section): Allow additional argument specifying entity size. * write.c (adjust_reloc_syms): Keep relocations against local symbols in SEC_MERGE sections. ld/ * ldmain.c (main): Default to discard_sec_merge. * lexsup.c (OPTION_DISCARD_NONE): Define. (ld_options): Add --discard-none. (parse_args): Handle OPTION_DISCARD_NONE. * ldlang.c (wild_doit): SEC_MERGE should be set in the output section only if SEC_MERGE and SEC_STRINGS flags and entsize of all its input sections match. --- bfd/linker.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'bfd/linker.c') diff --git a/bfd/linker.c b/bfd/linker.c index fcfeb83..3efaf66 100644 --- a/bfd/linker.c +++ b/bfd/linker.c @@ -2279,6 +2279,12 @@ _bfd_generic_link_output_symbols (output_bfd, input_bfd, info, psymalloc) case discard_all: output = false; break; + case discard_sec_merge: + output = true; + if (info->relocateable + || ! (sym->section->flags & SEC_MERGE)) + break; + /* FALLTHROUGH */ case discard_l: if (bfd_is_local_label (input_bfd, sym)) output = false; -- cgit v1.1