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Alan Modra 954b63d4c8 Implement -z dynamic-undefined-weak 
-z nodynamic-undefined-weak is only implemented for x86.  (The sparc
backend has some support code but doesn't enable the option by
including ld/emulparams/dynamic_undefined_weak.sh, and since the
support looks like it may be broken I haven't enabled it.)  This patch
adds the complementary -z dynamic-undefined-weak, extends both options
to affect building of shared libraries as well as executables, and
adds support for the option on powerpc.

include/
	* bfdlink.h (struct bfd_link_info <dynamic_undefined_weak>):
	Revise comment.
bfd/
	* elflink.c (_bfd_elf_adjust_dynamic_symbol): Hide undefweak
	or make dynamic for info->dynamic_undefined_weak 0 and 1.
	* elf32-ppc.c:Formatting.
	(ensure_undefweak_dynamic): Don't make dynamic when
	info->dynamic_undefined_weak is zero.
	(allocate_dynrelocs): Discard undefweak dyn_relocs for
	info->dynamic_undefined_weak.  Discard undef dyn_relocs when
	not default visibility.  Discard undef and undefweak
	dyn_relocs earlier.
	(ppc_elf_relocate_section): Adjust to suit.
	* elf64-ppc.c: Formatting.
	(ensure_undefweak_dynamic): Don't make dynamic when
	info->dynamic_undefined_weak is zero.
	(allocate_dynrelocs): Discard undefweak dyn_relocs for
	info->dynamic_undefined_weak.  Discard them earlier.
ld/
	* ld.texinfo (dynamic-undefined-weak): Document.
	(nodynamic-undefined-weak): Document that this option now can
	be used with shared libs.
	* emulparams/dynamic_undefined_weak.sh: Support -z
	dynamic-undefined-weak.
	* emulparams/elf32ppccommon.sh: Include dynamic_undefined_weak.sh.
	* testsuite/ld-undefined/weak-undef.exp (undef_weak_so),
	(undef_weak_exe): New.  Use them.  Add -z dynamic-undefined-weak
	and -z nodynamic-undefined-weak tests.
	* Makefile.am: Update powerpc dependencies.
	* Makefile.in: Regenerate.
2017-04-19 20:39:52 +09:30
..
aout Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
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 Support ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX 2017-04-04 09:06:04 -07:00
gdb update copyright year range in GDB files 2017-01-01 10:52:34 +04:00
mach-o Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
nlm Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
opcode Reorder PPC_OPCODE_* and set PPC_OPCODE_TMR for e6500 2017-04-11 07:43:21 +09:30
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 Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
bfdlink.h Implement -z dynamic-undefined-weak 2017-04-19 20:39:52 +09:30
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 Implement -z dynamic-undefined-weak 2017-04-19 20:39:52 +09:30
ChangeLog-0415
ChangeLog-2016 ChangeLog rotation 2017-01-02 13:55:05 +10:30
ChangeLog-9103
COPYING
COPYING3
demangle.h Sync libiberty sources with GCC. 2017-03-13 17:49:32 +00:00
dis-asm.h Add support for disassembling WebAssembly opcodes. 2017-04-06 17:20:02 +01:00
dwarf2.def Add DW_OP_GNU_variable_value 2017-03-14 12:57:48 -07:00
dwarf2.h Sync dwarf headers with master versions in gcc repository. 2017-01-03 15:18:52 +00:00
dyn-string.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
environ.h Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
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
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MAINTAINERS Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
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xregex.h
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