From 0ce398f106dac65c3a1d2f7d254213fa652af089 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Tue, 14 Apr 2015 22:01:25 -0700 Subject: Add --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] This patch adds --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi] to ld for ELF targets to support generating compressed DWARF debug sections. We always generate .zdebug_* section since section names have been finalized and they can't be changed easily when compression is being performed. bfd/ * bfd-in.h (compressed_debug_section_type): New. * compress.c (bfd_compress_section_contents): Add an argument for linker write compression and always generate .zdebug_* section when linking. (bfd_init_section_compress_status): Pass FALSE to bfd_compress_section_contents. (bfd_compress_section): New function. * elf.c (elf_fake_sections): For linking, set SEC_ELF_COMPRESS on DWARF debug sections if COMPRESS_DEBUG is set and rename section if COMPRESS_DEBUG_GABI_ZLIB isn't set. (assign_file_positions_for_non_load_sections): Set sh_offset to -1 if SEC_ELF_COMPRESS is set. (assign_file_positions_except_relocs): Likwise. (_bfd_elf_assign_file_positions_for_relocs): Renamed to ... (_bfd_elf_assign_file_positions_for_non_load): This. Change return time to bfd_boolean. Compress the section if SEC_ELF_COMPRESS is set. (_bfd_elf_write_object_contents): Updated. (_bfd_elf_set_section_contents): Write section contents to the buffer if SEC_ELF_COMPRESS is set. * merge.c: Include "elf-bfd.h". (sec_merge_emit): Add arguments for contents and offset. Write to contents with offset if contents isn't NULL. (_bfd_write_merged_section): Write section contents to the buffer if SEC_ELF_COMPRESS is set. Pass contents and output_offset to sec_merge_emit. * elflink.c (bfd_elf_final_link): Allocate the buffer for output section contents if SEC_ELF_COMPRESS is set. * section.c (SEC_ELF_COMPRESS): New. * bfd-in2.h: Regenerated. gas/ * as.h (compressed_debug_section_type): Removed. include/ * bfdlink.h (bfd_link_info): Add compress_debug. ld/ * ld.texinfo: Document --compress-debug-sections=. * ldmain.c (main): Set BFD_COMPRESS on output_bfd if COMPRESS_DEBUG is set. Set BFD_COMPRESS_GABI on output_bfd for COMPRESS_DEBUG_GABI_ZLIB. * lexsup.c (elf_static_list_options): Add --compress-debug-sections=. * emultempl/elf32.em (OPTION_COMPRESS_DEBUG): New. (xtra_long): Add "compress-debug-sections". (gld${EMULATION_NAME}_handle_option): Handle OPTION_COMPRESS_DEBUG. ld/testsuite/ * ld-elf/compress.exp (build_tests): Add tests for --compress-debug-sections=. (run_tests): Likewise. Add additonal tests for --compress-debug-sections=. * ld-elf/gabiend.rt: New file. * ld-elf/gabinormal.rt: Likewise. * ld-elf/gnubegin.rS: Likewise. * ld-elf/gnunormal.rS: Likewise. * ld-elf/zlibbegin.rS: Likewise. * ld-elf/zlibnormal.rS: Likewise. --- gas/ChangeLog | 4 ++++ gas/as.h | 10 ---------- 2 files changed, 4 insertions(+), 10 deletions(-) (limited to 'gas') diff --git a/gas/ChangeLog b/gas/ChangeLog index c90f98c..d42aa75 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,7 @@ +2015-04-14 H.J. Lu + + * as.h (compressed_debug_section_type): Removed. + 2015-04-14 Nick Clifton * config/tc-rl78.h (TC_LINKRELAX_FIXUP): Define. diff --git a/gas/as.h b/gas/as.h index e04cc0f..6de319e 100644 --- a/gas/as.h +++ b/gas/as.h @@ -370,16 +370,6 @@ COMMON int flag_strip_local_absolute; /* True if we should generate a traditional format object file. */ COMMON int flag_traditional_format; -/* Types of compressed debug sections. We currently support zlib. */ -enum compressed_debug_section_type -{ - COMPRESS_DEBUG_NONE = 0, - COMPRESS_DEBUG, - COMPRESS_DEBUG_ZLIB, - COMPRESS_DEBUG_GNU_ZLIB, - COMPRESS_DEBUG_GABI_ZLIB -}; - /* Type of compressed debug sections we should generate. */ COMMON enum compressed_debug_section_type flag_compress_debug; -- cgit v1.1