H.J. Lu a4819f54c0 Treat common symbol as undefined for --no-define-common ... When --no-define-common is used to build shared library, treat common symbol as undefined so that common symbols that are referenced from a shared library to be assigned addresses only in the main program. This eliminates the unused duplicate space in the shared library, and also prevents any possible confusion over resolving to the wrong duplicate when there are many dynamic modules with specialized search paths for runtime symbol resolution. --no-define-common is only allowed when building a shared library. bfd/ PR ld/21903: * elflink.c (elf_link_add_object_symbols): Treat common symbol as undefined for --no-define-common. include/ PR ld/21903: * bfdlink.h (bfd_link_info): Add inhibit_common_definition. ld/ PR ld/21903: * ld.h (command_line): Remove inhibit_common_definition. * ldgram.y: Replace command_line.inhibit_common_definition with link_info.inhibit_common_definition. * ldlang.c (lang_common): Likewise. * lexsup.c (parse_args): Likewise. * ldmain.c (main): Only allow --no-define-common with -shared. * testsuite/ld-elf/pr21903.s: New file. * testsuite/ld-elf/pr21903a.d: Likewise. * testsuite/ld-elf/pr21903b.d: Likewise. * testsuite/ld-elf/pr21903c.d: Likewise. * testsuite/ld-elf/pr21903d.d: Likewise. * testsuite/ld-elf/pr21903e.d: Likewise.		2017-08-06 08:19:04 -07:00
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aout	Fix spelling typos.	2017-07-18 16:58:14 +01:00
cgen	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
coff	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
elf	[ARC] Add JLI support.	2017-07-19 09:56:55 +02:00
gdb	Fix spelling typos.	2017-07-18 16:58:14 +01:00
mach-o	Fix spelling typos.	2017-07-18 16:58:14 +01:00
nlm	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
opcode	[ARC] Add SJLI instruction.	2017-07-19 09:56:55 +02:00
som	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
vms	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
alloca-conf.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
ansidecl.h	Fix compile time error when using ansidecl.h with an old version of GCC.	2017-07-31 15:08:32 +01:00
bfdlink.h	Treat common symbol as undefined for --no-define-common	2017-08-06 08:19:04 -07:00
binary-io.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
bout.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
ChangeLog	Treat common symbol as undefined for --no-define-common	2017-08-06 08:19:04 -07:00
ChangeLog-0415	binutils ChangeLog rotation	2016-01-01 22:59:17 +10:30
ChangeLog-2016	ChangeLog rotation	2017-01-02 13:55:05 +10:30
ChangeLog-9103	Add copyright notices	2012-12-10 12:48:03 +00:00
COPYING	Update the address and phone number of the FSF organization	2005-05-10 10:21:13 +00:00
COPYING3	* COPYING3: New file. Contains version 3 of the GNU General Public License.	2007-07-17 13:50:23 +00:00
demangle.h	Sync libiberty sources with GCC.	2017-03-13 17:49:32 +00:00
dis-asm.h	binutils/objdump: Fix disassemble for huge elf sections	2017-07-14 22:51:01 +09:30
dwarf2.def	Import include/+libiberty/ r249883 from upstream GCC.	2017-07-02 22:09:52 +02:00
dwarf2.h	Import include/+libiberty/ r249883 from upstream GCC.	2017-07-02 22:09:52 +02:00
dyn-string.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
environ.h	Fix MinGW compilation warnings due to environ.h	2017-05-31 09:35:07 +03:00
fibheap.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
filenames.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
floatformat.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
fnmatch.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
fopen-bin.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
fopen-same.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
fopen-vms.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
gcc-c-fe.def	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
gcc-c-interface.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
gcc-interface.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
getopt.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
hashtab.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
hp-symtab.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
ieee.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
leb128.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
libiberty.h	Fix spelling typos.	2017-07-18 16:58:14 +01:00
longlong.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
lto-symtab.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
MAINTAINERS	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
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oasys.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
objalloc.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
obstack.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
os9k.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
partition.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
plugin-api.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
progress.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
safe-ctype.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
sha1.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
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sort.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
splay-tree.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
symcat.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
timeval-utils.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
vtv-change-permission.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
xregex2.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
xregex.h	merge from gcc	2011-07-25 17:11:48 +00:00
xtensa-config.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
xtensa-isa-internal.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30
xtensa-isa.h	Update year range in copyright notice of all files.	2017-01-02 14:08:56 +10:30