Make default compression gABI compliant
All programs in binutils+gdb git repo now support gABI compression with the SHF_COMPRESSED bit. This patch makes the zlib-gabi option as compression default for gas, gold, ld and objcopy, instead of the zlib-gnu option whose outputs are incompatible with gABI. binutils/ * objcopy.c (copy_file): Set BFD_COMPRESS_GABI if not zlib-gnu. * doc/binutils.texi: Change --compress-debug-sections and --compress-debug-sections=zlib to zlib-gabi. binutils/testsuite/ * binutils-all/compress.exp: Update. gas/ * as.c (parse_args): Make --compress-debug-sections and --compress-debug-sections=zlib the same as --compress-debug-sections=zlib-gabi. * doc/as.texinfo: Change --compress-debug-sections and --compress-debug-sections=zlib to zlib-gabi. gold/ * compressed_output.cc (Output_compressed_section::set_final_data_size): Make --compress-debug-sections=zlib the same as --compress-debug-sections=zlib-gabi. * testsuite/Makefile.am (flagstest_compress_debug_sections.check): Expect ".debug_.*" with the SHF_COMPRESSED bit, instead of ".zdebug_". * testsuite/Makefile.in: Regenerated. ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Make --compress-debug-sections=zlib the same as --compress-debug-sections=zlib-gabi. * ld.texinfo: Change --compress-debug-sections=zlib to zlib-gabi. ld/testsuite/ * ld-elf/zlibbegin.rS: Updated to .debug_.* with the SHF_COMPRESSED bit. * ld-elf/zlibnormal.rS: Likewise.
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@ -1844,10 +1844,9 @@ It can also be a useful way of reducing the size of a @option{--just-symbols}
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linker input file.
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@item --compress-debug-sections
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Compress DWARF debug sections using zlib. The debug sections are
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renamed to begin with @samp{.zdebug} instead of @samp{.debug}. Note -
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if compression would actually make a section @emph{larger} then it is
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not compressed or renamed.
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Compress DWARF debug sections using zlib with SHF_COMPRESSED from the
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ELF ABI. Note - if compression would actually make a section
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@emph{larger}, then it is not compressed.
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@item --compress-debug-sections=none
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@itemx --compress-debug-sections=zlib
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@ -1857,10 +1856,13 @@ For ELF files, these options control how DWARF debug sections are
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compressed. @option{--compress-debug-sections=none} is equivalent
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to @option{--nocompress-debug-sections}.
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@option{--compress-debug-sections=zlib} and
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@option{--compress-debug-sections=zlib-gnu} are equivalent to
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@option{--compress-debug-sections=zlib-gabi} are equivalent to
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@option{--compress-debug-sections}.
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@option{--compress-debug-sections=zlib-gabi} compresses
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DWARF debug sections with SHF_COMPRESSED from the ELF ABI.
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@option{--compress-debug-sections=zlib-gnu} compresses DWARF debug
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sections using zlib. The debug sections are renamed to begin with
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@samp{.zdebug} instead of @samp{.debug}. Note - if compression would
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actually make a section @emph{larger}, then it is not compressed nor
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renamed.
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@item --decompress-debug-sections
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Decompress DWARF debug sections using zlib. The original section
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