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H.J. Lu b8871f357f Properly implement STT_COMMON 
The BFD configure option, --enable-elf-stt-common, can't be to used to
verify STT_COMMON implementation with the normal binutils build.  Instead,
this patch removes it from BFD.  It adds --elf-stt-common=[no|yes] to ELF
assembler/objcopy and adds -z common/-z nocommon to ld.

A configure option, --enable-elf-stt-common, is added to gas to specify
whether ELF assembler should generate common symbols with the STT_COMMON
type by default.

Since BSF_KEEP_G is never used, it is renamed to BSF_ELF_COMMON for ELF
common symbols.

bfd/

	PR ld/19645
	* bfd.c (bfd): Change flags to 20 bits.
	(BFD_CONVERT_ELF_COMMON): New.
	(BFD_USE_ELF_STT_COMMON): Likewise.
	(BFD_FLAGS_SAVED): Add BFD_CONVERT_ELF_COMMON and
	BFD_USE_ELF_STT_COMMON.
	(BFD_FLAGS_FOR_BFD_USE_MASK): Likewise.
	* configure.ac: Remove --enable-elf-stt-common.
	* elf.c (swap_out_syms): Choose STT_COMMON or STT_OBJECT for
	common symbol depending on BFD_CONVERT_ELF_COMMON and
	BFD_USE_ELF_STT_COMMON.
	* elfcode.h (elf_slurp_symbol_table): Set BSF_ELF_COMMON for
	STT_COMMON.
	* elflink.c (bfd_elf_link_mark_dynamic_symbol): Also check
	STT_COMMON.
	(elf_link_convert_common_type): New function.
	(elf_link_output_extsym): Choose STT_COMMON or STT_OBJECT for
	common symbol depending on BFD_CONVERT_ELF_COMMON and
	BFD_USE_ELF_STT_COMMON.  Set sym.st_info after sym.st_shndx.
	* elfxx-target.h (TARGET_BIG_SYM): Add BFD_CONVERT_ELF_COMMON
	and BFD_USE_ELF_STT_COMMON to object_flags.
	(TARGET_LITTLE_SYM): Likewise.
	* syms.c (BSF_KEEP_G): Renamed to ...
	(BSF_ELF_COMMON): This.
	* bfd-in2.h: Regenerated.
	* config.in: Likewise.
	* configure: Likewise.

binutils/

	PR ld/19645
	* NEWS: Mention --elf-stt-common= for objcopy.
	* doc/binutils.texi: Document --elf-stt-common= for objcopy.
	* objcopy.c (do_elf_stt_common): New.
	(command_line_switch): Add OPTION_ELF_STT_COMMON.
	(copy_options): Add --elf-stt-common=.
	(copy_usage): Add --elf-stt-common=.
	(copy_object): Also check do_elf_stt_common for ELF targets.
	(copy_file): Handle do_elf_stt_common.
	(copy_main): Handle OPTION_ELF_STT_COMMON.
	* readelf.c (apply_relocations): Support STT_COMMON.
	* testsuite/binutils-all/common-1.s: New file.
	* testsuite/binutils-all/common-1a.d: Likewise.
	* testsuite/binutils-all/common-1b.d: Likewise.
	* testsuite/binutils-all/common-1c.d: Likewise.
	* testsuite/binutils-all/common-1d.d: Likewise.
	* testsuite/binutils-all/common-1e.d: Likewise.
	* testsuite/binutils-all/common-1f.d: Likewise.
	* testsuite/binutils-all/common-2.s: Likewise.
	* testsuite/binutils-all/common-2a.d: Likewise.
	* testsuite/binutils-all/common-2b.d: Likewise.
	* testsuite/binutils-all/common-2c.d: Likewise.
	* testsuite/binutils-all/common-2d.d: Likewise.
	* testsuite/binutils-all/common-2e.d: Likewise.
	* testsuite/binutils-all/common-2f.d: Likewise.
	* testsuite/binutils-all/objcopy.exp
	(objcopy_test_elf_common_symbols): New proc.
	Run objcopy_test_elf_common_symbols for ELF targets

gas/

	PR ld/19645
	* NEWS: Mention --enable-elf-stt-common and --elf-stt-common=
	for ELF assemblers.
	* as.c (flag_use_elf_stt_common): New.
	(show_usage): Add --elf-stt-common=.
	(option_values): Add OPTION_ELF_STT_COMMON.
	(std_longopts): Add --elf-stt-common=.
	(parse_args): Handle --elf-stt-common=.
	* as.h (flag_use_elf_stt_common): New.
	* config.in: Regenerated.
	* configure: Likewise.
	* configure.ac: Add --enable-elf-stt-common and define
	DEFAULT_GENERATE_ELF_STT_COMMON.
	* gas/write.c (write_object_file): Set BFD_CONVERT_ELF_COMMON
	and BFD_USE_ELF_STT_COMMON if flag_use_elf_stt_common is set.
	* doc/as.texinfo: Document --elf-stt-common=.
	* testsuite/gas/elf/common3.s: New file.
	* testsuite/gas/elf/common3a.d: Likewise.
	* testsuite/gas/elf/common3b.d: Likewise.
	* testsuite/gas/elf/common4.s: Likewise.
	* testsuite/gas/elf/common4a.d: Likewise.
	* testsuite/gas/elf/common4b.d: Likewise.
	* testsuite/gas/i386/dw2-compress-3b.d: Likewise.
	* testsuite/gas/i386/dw2-compressed-3b.d: Likewise.
	* testsuite/gas/elf/elf.exp: Run common3a, common3b, common4a
	and common4b.
	* testsuite/gas/i386/dw2-compress-3.d: Renamed to ...
	* testsuite/gas/i386/dw2-compress-3a.d: This.  Pass
	--elf-stt-common=no to as.
	* testsuite/gas/i386/dw2-compressed-3.d: Renamed to ...
	* testsuite/gas/i386/dw2-compressed-3a.d: This.  Pass
	--elf-stt-common=no to as.
	* testsuite/gas/i386/i386.exp: Run dw2-compress-3a,
	dw2-compress-3b, dw2-compressed-3a and dw2-compressed-3b instead
	of dw2-compress-3 and dw2-compressed-3.

include/

	PR ld/19645
	* bfdlink.h (bfd_link_elf_stt_common): New enum.
	(bfd_link_info): Add elf_stt_common.

ld/

	PR ld/19645
	* NEWS: Mention -z common/-z nocommon for ELF targets.
	* emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Handle
	-z common and -z nocommon.
	* ld.texinfo: Document -z common/-z nocommon.
	* lexsup.c (elf_shlib_list_options): Add -z common/-z nocommon.
	* testsuite/ld-elf/tls_common.exp: Test --elf-stt-common=no and
	--elf-stt-common=yes with assembler.
	* testsuite/ld-elfcomm/common-1.s: New file.
	* testsuite/ld-elfcomm/common-1a.d: Likewise.
	* testsuite/ld-elfcomm/common-1b.d: Likewise.
	* testsuite/ld-elfcomm/common-1c.d: Likewise.
	* testsuite/ld-elfcomm/common-1d.d: Likewise.
	* testsuite/ld-elfcomm/common-1e.d: Likewise.
	* testsuite/ld-elfcomm/common-1f.d: Likewise.
	* testsuite/ld-elfcomm/common-2.s: Likewise.
	* testsuite/ld-elfcomm/common-2a.d: Likewise.
	* testsuite/ld-elfcomm/common-2b.d: Likewise.
	* testsuite/ld-elfcomm/common-2c.d: Likewise.
	* testsuite/ld-elfcomm/common-2d.d: Likewise.
	* testsuite/ld-elfcomm/common-2e.d: Likewise.
	* testsuite/ld-elfcomm/common-2f.d: Likewise.
	* testsuite/ld-elfcomm/common-3a.rd: Likewise.
	* testsuite/ld-elfcomm/common-3b.rd: Likewise.
	* testsuite/ld-i386/pr19645.d: Likewise.
	* testsuite/ld-i386/pr19645.s: Likewise.
	* testsuite/ld-x86-64/largecomm-1.s: Likewise.
	* testsuite/ld-x86-64/largecomm-1a.d: Likewise.
	* testsuite/ld-x86-64/largecomm-1b.d: Likewise.
	* testsuite/ld-x86-64/largecomm-1c.d: Likewise.
	* testsuite/ld-x86-64/largecomm-1d.d: Likewise.
	* testsuite/ld-x86-64/largecomm-1e.d: Likewise.
	* testsuite/ld-x86-64/largecomm-1f.d: Likewise.
	* testsuite/ld-x86-64/pr19645.d: Likewise.
	* testsuite/ld-x86-64/pr19645.s: Likewise.
	* testsuite/ld-elfcomm/elfcomm.exp: Test --elf-stt-common=yes
	with assembler.
	(assembler_generates_commons): Removed.
	Run -z common/-z nocommon tests.  Run *.d tests.
	* testsuite/ld-i386/i386.exp: Run pr19645.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/ld-x86-64/dwarfreloc.exp: Test --elf-stt-common with
	assembler.  Test STT_COMMON with readelf.
2016-02-26 05:01:34 -08:00
..
aarch64 Copyright update for binutils 2016-01-01 23:00:01 +10:30
arm Copyright update for binutils 2016-01-01 23:00:01 +10:30
bfin Copyright update for binutils 2016-01-01 23:00:01 +10:30
hppa Copyright update for binutils 2016-01-01 23:00:01 +10:30
i386 Copyright update for binutils 2016-01-01 23:00:01 +10:30
m68k Copyright update for binutils 2016-01-01 23:00:01 +10:30
mips Copyright update for binutils 2016-01-01 23:00:01 +10:30
vax Copyright update for binutils 2016-01-01 23:00:01 +10:30
windres Copyright update for binutils 2016-01-01 23:00:01 +10:30
x86-64 Copyright update for binutils 2016-01-01 23:00:01 +10:30
add-empty-section.d
add-section.d
add-symbol.d Run add-symbol test on mips 2015-10-22 12:49:17 +10:30
alias-2.def
alias.def
ar.exp Copyright update for binutils 2016-01-01 23:00:01 +10:30
bintest.s
common-1.s Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-1a.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-1b.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-1c.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-1d.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-1e.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-1f.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-2.s Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-2a.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-2b.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-2c.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-2d.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-2e.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
common-2f.d Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
compress.exp Set BFD_DECOMPRESS to decompress debug sections 2016-01-28 13:29:53 -08:00
copy-1.d
copy-1.s
copy-2.d
copy-3.d binutils/ 2012-10-29 10:09:34 +00:00
copy-4.d
copytest.s
debug_str.d Fixes a problem with the BFD library running out of memory because it mistakenly 2014-04-30 17:04:04 +01:00
debug_str.s Fixes a problem with the BFD library running out of memory because it mistakenly 2014-04-30 17:04:04 +01:00
dlltool.exp Fix dlltool tests for ARM targets, which do not support the --leading-underscore option. 2016-01-20 14:52:33 +00:00
dumptest.s
dw2-1.S Copyright update for binutils 2016-01-01 23:00:01 +10:30
dw2-1.W Don't change compressed input debug section names 2015-04-23 07:59:59 -07:00
dw2-2.S Copyright update for binutils 2016-01-01 23:00:01 +10:30
dw2-3.rS Add SHF_COMPRESSED support to gas and objcopy 2015-04-08 07:54:09 -07:00
dw2-3.rt Add SHF_COMPRESSED support to gas and objcopy 2015-04-08 07:54:09 -07:00
dw2-3.S Copyright update for binutils 2016-01-01 23:00:01 +10:30
dw2-3.W Updated to accept .debug_* sections 2015-07-10 08:14:59 -07:00
dw2-3gabi.W Don't change compressed input debug section names 2015-04-23 07:59:59 -07:00
dw2-compressed.S Copyright update for binutils 2016-01-01 23:00:01 +10:30
dw2-decodedline-1.S Remove support for the (deprecated) openrisc and or32 configurations and replace 2014-04-22 15:57:47 +01:00
dw2-decodedline.S * binutils-all/dw2-decodedline.S: Always have whitespace before 2012-02-14 01:00:50 +00:00
dw2-empty.S Don't compress empty debug section 2012-07-03 16:06:34 +00:00
dw2-ranges.S Copyright update for binutils 2016-01-01 23:00:01 +10:30
dw2-ranges.W objdump: Handle 32-bit base address in debug_ranges / debug_loc. 2015-11-30 13:28:26 +00:00
elfedit-1.d Also skip x86_64-*-nacl* 2015-05-12 12:47:27 -07:00
elfedit-2.d
elfedit-3.d
elfedit-4.d bfd/ 2012-04-03 16:01:38 +00:00
elfedit-5.d Add EM_386/EM_IAMCU support to elfedit.c 2015-05-11 09:57:21 -07:00
elfedit.exp Copyright update for binutils 2016-01-01 23:00:01 +10:30
empty-file
empty.s
exclude-1.s
exclude-1a.d
exclude-1b.d
fastcall.def
group-2.s
group-3.s
group-4.s
group-5.d
group-5.s
group-6.d Remove the group section if all members are removed. 2011-09-16 04:23:19 +00:00
group-6.s Remove the group section if all members are removed. 2011-09-16 04:23:19 +00:00
group.s
libdw2-compressed.out Add a dw2-3.S test 2015-04-04 07:34:25 -07:00
libdw2-compressedgabi.out Don't add the zlib header to SHF_COMPRESSED section 2015-05-14 16:02:08 -07:00
libdw2.out Add a dw2-3.S test 2015-04-04 07:34:25 -07:00
link-order.s
localize-hidden-1.d Fix the evaluation of RL78 complex relocs, by making immediate values be computed relative to a new absolute symbol. 2015-07-24 16:44:27 +01:00
localize-hidden-1.s
localize-hidden-2.d
localize-hidden-2.s
needed-by-reloc.s
nm-1.s * binutils-all/nm.exp: --size-sort test: Add more ELF-like 2013-08-22 11:29:43 +00:00
nm-elf-1.s binutils/ 2013-08-19 15:08:52 +00:00
nm.exp Copyright update for binutils 2016-01-01 23:00:01 +10:30
note-1.d
objcopy.exp Properly implement STT_COMMON 2016-02-26 05:01:34 -08:00
objdump.exp Change the default architecture value for ARC bfds so that they have the lowest possible value, and hence can be merged with other ARC binaries wihtout changing their architecture value. 2016-02-05 09:58:01 +00:00
objdump.s
objdump.W Don't change compressed input debug section names 2015-04-23 07:59:59 -07:00
objdump.WL binutils/ 2011-10-04 14:25:40 +00:00
pr18374.s Fix PR18374 by making readelf and objdump ignore end-of-list markers in the .debug_loc section if there are relocations against them. 2015-05-15 11:24:33 +01:00
pr19020.in Don't use the output section size to copy input section 2015-09-29 13:31:57 -07:00
pr19020a.d Don't use the output section size to copy input section 2015-09-29 13:31:57 -07:00
pr19020b.d Don't use the output section size to copy input section 2015-09-29 13:31:57 -07:00
pr19547.c Clear HAS_RELOC if there are no relocations 2016-02-02 03:30:48 -08:00
readelf.exp Copyright update for binutils 2016-01-01 23:00:01 +10:30
readelf.h
readelf.n PR binutils/15191 2013-02-26 16:59:52 +00:00
readelf.pr18374 Fix PR18374 by making readelf and objdump ignore end-of-list markers in the .debug_loc section if there are relocations against them. 2015-05-15 11:24:33 +01:00
readelf.r Add support for Andes NDS32: 2013-12-13 11:52:32 +00:00
readelf.r-64
readelf.s [MIPS] Implement O32 FPXX, FP64 and FP64A ABI extensions 2014-07-29 11:27:59 +01:00
readelf.s-64 Don't hardcode offset of .shstrtab section 2015-04-20 09:55:47 -07:00
readelf.ss readelf -s test: Skip extra symbols produced by MSP430 assembler. 2014-03-17 11:00:32 +00:00
readelf.ss-64 Fix the binutils readelf.ss test for the AArch64 target. 2015-04-02 15:28:02 +01:00
readelf.ss-mips MIPS testsuite cleanup - part 1 2014-09-06 17:58:37 +01:00
readelf.ss-tmips [MIPS] Implement O32 FPXX, FP64 and FP64A ABI extensions 2014-07-29 11:27:59 +01:00
readelf.wa Display null bytes in DWARF debug info 2012-08-02 13:42:59 +00:00
readelf.z Add --decompress option to readelf to decompress sections before they are dumped. 2015-05-15 17:16:31 +01:00
size.exp Copyright update for binutils 2016-01-01 23:00:01 +10:30
strip-1.d
strip-2.d
strip-3.d [MIPS] Implement O32 FPXX, FP64 and FP64A ABI extensions 2014-07-29 11:27:59 +01:00
strip-4.d
strip-5.d
strip-6.d
strip-7.d
strip-8.d
strip-9.d
strip-10.d My patch to the binutils strip-10.d test was wrong. The osabi field should always be set to 2014-01-29 14:01:54 +00:00
strip-11.d Fix the evaluation of RL78 complex relocs, by making immediate values be computed relative to a new absolute symbol. 2015-07-24 16:44:27 +01:00
strip-12.d Tweak binutils testsuite 2015-08-11 23:29:36 +09:30
strip-12.s Tweak binutils testsuite 2015-08-11 23:29:36 +09:30
symbols-1.d Tweak binutils testsuite 2015-08-11 23:29:36 +09:30
symbols-2.d Tweak binutils testsuite 2015-08-11 23:29:36 +09:30
symbols-3.d Tweak binutils testsuite 2015-08-11 23:29:36 +09:30
symbols-4.d Tweak binutils testsuite 2015-08-11 23:29:36 +09:30
symbols.s objcopy: Improve wildcard matching for symbols with '!' prefix. 2015-08-07 11:41:40 +02:00
testprog.c
testranges-ia64.d
testranges-ia64.s
testranges.d
testranges.s
unique.s
unknown.s
update-1.s objcopy: Add --update-section option. 2015-02-28 21:25:51 +00:00
update-2.s objcopy: Add --update-section option. 2015-02-28 21:25:51 +00:00
update-3.s objcopy: Add --update-section option. 2015-02-28 21:25:51 +00:00
update-4.s objcopy: Add --update-section option. 2015-02-28 21:25:51 +00:00
update-section.exp Copyright update for binutils 2016-01-01 23:00:01 +10:30
version.def ChangeLog binutils 2012-02-11 20:02:03 +00:00
version.s * binutils-all/dw2-decodedline.S: Always have whitespace before 2012-02-14 01:00:50 +00:00
z.s Add --decompress option to readelf to decompress sections before they are dumped. 2015-05-15 17:16:31 +01:00