Commit Graph

5025 Commits

Author SHA1 Message Date
Nick Clifton 4153b6dbb0 Improve COFF/PE linker garbage collection by preventing the removal of sections containing exported symbols.
PR ld/19803
	* ldlang.c (lang_add_gc_name): New function.  Adds the provided
	symbol name to the list of gc symbols.
	(lang_process): Call lang_add_gc_name with entry_symbol_default if
	entry_symbol.name is NULL.  Use lang_add_gc_name to add the init
	and fini function names.
	* pe-dll.c (process_def_file_and_drectve): Add exported names to
	the gc symbol list.
	* testsuite/ld-pe/pr19803.s: Do not export _testval symbol.
	* testsuite/ld-pe/pr19803.d: Tweak expected output.
2016-03-22 12:25:08 +00:00
Nick Clifton 9780e04507 Add -Wstack-usage to the gcc warning flags list, but only if using a sufficiently recent version of gcc.
bfd	* warning.m4 (GCC_WARN_CFLAGS): Only add -Wstack-usage if using a
	sufficiently recent version of GCC.
	* configure: Regenerate.

others	* configure: Regenerate.
2016-03-22 09:41:16 +00:00
Nick Clifton e1fa016350 Remove use of alloca.
bfd	* warning.m4 (GCC_WARN_CFLAGS): Add -Wstack-usage=262144
	* configure: Regenerate.
	* elf32-m68hc1x.c (elf32_m68hc11_relocate_section): Replace use of
	alloca with call to xmalloc.
	* elf32-nds32.c: Likewise.
	* elf64-hppa.c: Likewise.
	* elfxx-mips.c: Likewise.
	* pef.c: Likewise.
	* pei-x86_64.c: Likewise.
	* som.c: Likewise.
	* xsym.c: Likewise.

binutils * dlltool.c: Replace use of alloca with call to xmalloc.
	* dllwrap.c: Likewise.
	* nlmconv.c: Likewise.
	* objdump.c: Likewise.
	* resrc.c: Likewise.
	* winduni.c: Likewise.
	* configure: Regenerate.

gas	* atof-generic.c: Replace use of alloca with call to xmalloc.
	* cgen.c: Likewise.
	* dwarf2dbg.c: Likewise.
	* macro.c: Likewise.
	* remap.c: Likewise.
	* stabs.c: Likewise.
	* symbols.c: Likewise.
	* config/obj-elf.c: Likewise.
	* config/tc-aarch64.c: Likewise.
	* config/tc-arc.c: Likewise.
	* config/tc-arm.c: Likewise.
	* config/tc-avr.c: Likewise.
	* config/tc-ia64.c: Likewise.
	* config/tc-mips.c: Likewise.
	* config/tc-msp430.c: Likewise.
	* config/tc-nds32.c: Likewise.
	* config/tc-ppc.c: Likewise.
	* config/tc-sh.c: Likewise.
	* config/tc-tic30.c: Likewise.
	* config/tc-tic54x.c: Likewise.
	* config/tc-xstormy16.c: Likewise.
	* config/te-vms.c: Likewise.
	* configure: Regenerate.

ld	* emultempl/msp430.em: Replace use of alloca with call to xmalloc.
	* plugin.c: Likewise.
	* pe-dll.c: Likewise.
2016-03-21 16:31:46 +00:00
Awson 45821bef09 Ensure that the .rdata_pseudo_runtime_reloc sections are not discarded by gabage collection.
PR 19531
	* scripttempl/pe.sc (.rdata_runtime_pseudo_reloc): Always KEEP
	this section.
	* scripttempl/pep.sc (.rdata_runtime_pseudo_reloc): Likewise.
2016-03-18 11:45:43 +00:00
Senthil Kumar Selvaraj 41f46ed9fe Fix possible failure in the AVR linker tests.
* ld-avr/gc-section-debugline.d: Relax regex check for CU.
2016-03-18 09:51:47 +00:00
H.J. Lu 4e0c91e454 Bind defined symbol locally in PIE
Symbols defined in PIE should be bound locally, the same as -shared
-Bsymbolic.

bfd/

	PR ld/19827
	* elf32-i386.c (elf_i386_check_relocs): Bind defined symbol
	locally in PIE.
	(elf_i386_relocate_section): Likewise.
	* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
	(elf_x86_64_relocate_section): Likewise.

ld/

	PR ld/19827
	* testsuite/ld-i386/i386.exp: Run PR ld/19827 tests.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/ld-i386/pr19827.rd: New file.
	* testsuite/ld-i386/pr19827a.S: Likewise.
	* testsuite/ld-i386/pr19827b.S: Likewise.
	* testsuite/ld-x86-64/pr19827.rd: Likewise.
	* testsuite/ld-x86-64/pr19827a.S: Likewise.
	* testsuite/ld-x86-64/pr19827b.S: Likewise.
2016-03-15 11:47:06 -07:00
H.J. Lu 4c10bbaa09 Add -z noreloc-overflow option to x86-64 ld
Add -z noreloc-overflow command-line option to the x86-64 ELF linker to
disable relocation overflow check.  This can be used to avoid relocation
overflow check if there will be no dynamic relocation overflow at
run-time.

bfd/

	PR ld/19807
	* elf64-x86-64.c (elf_x86_64_relocate_section): Check
	no_reloc_overflow_check to diable R_X86_64_32/R_X86_64_32S
	relocation overflow check.

include/

	PR ld/19807
	* bfdlink.h (bfd_link_info): Add no_reloc_overflow_check.

ld/

	PR ld/19807
	* Makefile.am (ELF_X86_DEPS): Add
	$(srcdir)/emulparams/reloc_overflow.sh.
	* Makefile.in: Regenerated.
	* NEWS: Mention -z noreloc-overflow.
	* ld.texinfo: Document -z noreloc-overflow.
	* emulparams/elf32_x86_64.sh: Source
	${srcdir}/emulparams/reloc_overflow.sh.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/reloc_overflow.sh: New file.
	* testsuite/ld-x86-64/pr19807-1.s: New file.
	* testsuite/ld-x86-64/pr19807-1a.d: Likewise.
	* testsuite/ld-x86-64/pr19807-1b.d: Likewise.
	* testsuite/ld-x86-64/pr19807-2.s: Likewise.
	* testsuite/ld-x86-64/pr19807-2a.d: Likewise.
	* testsuite/ld-x86-64/pr19807-2b.d: Likewise.
	* testsuite/ld-x86-64/pr19807-2c.d: Likewise.
	* testsuite/ld-x86-64/pr19807-2d.d: Likewise.
	* testsuite/ld-x86-64/pr19807-2e.d: Likewise.
	* testsuite/ld-x86-64/x86-64.exp: Run PR ld/19807 tests.
2016-03-15 11:07:54 -07:00
H.J. Lu 3ab94f96a9 Add more tests for PR ld/19539
PR ld/19539
	* testsuite/ld-i386/i386.exp: Run pr19539.
	* testsuite/ld-i386/pr19539.d: New file.
	* testsuite/ld-i386/pr19539.s: Likewise.
	* testsuite/ld-i386/pr19539.t: Likewise.
	* testsuite/ld-x86-64/pr19539.s: Likewise.
	* testsuite/ld-x86-64/pr19539.t: Likewise.
	* testsuite/ld-x86-64/pr19539a.d: Likewise.
	* testsuite/ld-x86-64/pr19539b.d: Likewise.
	* testsuite/ld-x86-64/x86-64.exp: Run pr19539a and pr19539b.
2016-03-13 08:57:10 -07:00
Mickael Guene a9f02af88d PR gas/19744: Thumb-1 pcrop relocations don't work on Thumb-2 targets
gas/
	* config/tc-arm.c (do_arit): Protect against bad relocations usage.
	(do_mov): Likewise.
	(do_t_add_sub): Allow pcrop relocations for Thumb-2 targets.
	(do_t_mov_cmp): Likewise.
	(do_t_add_sub): Protect against bad relocations usage.
	(do_t_mov_cmp): Likewise.

	gas/testsuite/
	* gas/arm/adds-thumb1-reloc-local-armv7-m.s: New.
	* gas/arm/adds-thumb1-reloc-local-armv7-m.d: New.
	* gas/arm/movs-thumb1-reloc-local-armv7-m.s: New.
	* gas/arm/movs-thumb1-reloc-local-armv7-m.d: New.

	ld/
	* testsuite/ld-arm/arm-elf.exp: New tests.
	* testsuite/ld-arm/thumb1-adds-armv7-m.s: New.
	* testsuite/ld-arm/thumb1-movs-armv7-m.s: New.
2016-03-10 17:06:35 +01:00
Nick Clifton 878a68773b Remove bogus LONG(0) from MSP430 built in linker script.
ld	* scripttempl/elf32msp430.sc (.rodata): Remove spurious LONG(0).
2016-03-10 10:37:19 +00:00
Pedro Alves 4b05e0a74b Fix v850 bfd arch info printable names
Currently, it's not possible to manually set some of the v850 archs in
gdb:

 (gdb) set architecture v850<TAB>
 v850 (using old gcc ABI)
 v850-rh850
 v850e
 v850e (using old gcc ABI)
 v850e1
 [...]
 (gdb) set architecture v850 (using old gcc ABI)
 Ambiguous item "v850 (using old gcc ABI)".

The problem is that "set architecture" is a GDB "enum command", and
GDB only considers an enum value to be the string up until the first
space.  So writing "v850 (using old gcc ABI)" is the same as writing
"v850", and then that's not an unambiguous arch printable name prefix.

v850 is actually the only arch that has spaces in its printable name.
One can conveniently see that with e.g.:

 (gdb) set max-completions unlimited
 (gdb) complete set architecture
 ...

Rather than hack GDB into accepting this somehow, make v850 arch
printable names more like the printable names of the other archs, and
put the abi variant in the "machine" part, after a ':'.

We now get:

 (gdb) set architecture v850<TAB>
 v850:old-gcc-abi
 v850:rh850
 v850e
 v850e1
 v850e1:old-gcc-abi
 v850e2
 v850e2:old-gcc-abi
 [...]

And now "set architecture v850:old-gcc-abi" works as expected.

I ran the binutils/gas/ld testsuites, and found no regressions.  I
don't have a cross compiler handy, but I ran the gdb tests anyway,
which covers at least some snoke testing.

I think that the OUTPUT_ARCH in ld/scripttempl/v850.sc may have got
broken with the previous 2012 change, since I hacked v850_rh850.sc to
output "v850" and ld failed to grok it.  I think it only works if the
old GCC ABI is the configured v850 default ABI.  That's now fixed by
changing to use explicit v850:old-gcc-abi.

Also, this actually "fixes" an existing GDB test, which isn't likewise
expecting spaces in arch names, when GDB is configured for
--target=v850:

  (gdb) FAIL: gdb.xml/tdesc-arch.exp: read valid architectures

bfd/ChangeLog:
2016-03-09  Pedro Alves  <palves@redhat.com>

	* cpu-v850.c (N): Append ":old-gcc-abi" instead of " (using old
	gcc ABI)" to printable name.
	* cpu-v850_rh850.c (bfd_v850_rh850_arch): Use "v850:rh850" instead
	of "v850-rh850" as printable name.

ld/ChangeLog:
2016-03-09  Pedro Alves  <palves@redhat.com>

	* scripttempl/v850.sc: Use "v850:old-gcc-abi" as OUTPUT_ARCH.
	* scripttempl/v850_rh850.sc: Use "v850:rh850" as OUTPUT_ARCH.
2016-03-09 15:43:13 +00:00
H.J. Lu 9c1d7a0876 Don't create dynamic sections when relocatable
Since dynamic sections aren't applicable to relocatable file, don't
create dynamic sections for -E/--dynamic-list when relocatable.

bfd/

	PR ld/19789
	* elflink.c (elf_link_add_object_symbols): Create dynamic sections
	for -E/--dynamic-list only when not relocatable.

ld/

	PR ld/19789
	* testsuite/ld-elf/pr19789.d: New file.
	* testsuite/ld-elf/pr19789.s: Likewise.
2016-03-08 20:45:52 -08:00
H.J. Lu d1ed1c7d69 Handle local IFUNC symbols in shared object
Increment PLT reference count for locally defined local IFUNC symbols
in shared object since STT_GNU_IFUNC symbol must go through PLT even
if it is locally defined and undefined symbol may turn out to be a
STT_GNU_IFUNC symbol later.

bfd/

	PR ld/19784
	* elf32-i386.c (elf_i386_check_relocs): Increment PLT reference
	count for locally defined local IFUNC symbols in shared object.
	* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.

ld/

	PR ld/19784
	* testsuite/ld-i386/i386.exp: Remove pr19636-2e-nacl test.
	* testsuite/ld-i386/pr19636-2e-nacl.d: Moved to ...
	* testsuite/ld-i386/pr19636-2e.d: Here.  Remove notarget.
	* testsuite/ld-ifunc/ifunc.exp: Run PR ld/19784 tests.
	* testsuite/ld-ifunc/pass.out: New file.
	* testsuite/ld-ifunc/pr19784a.c: Likewise.
	* testsuite/ld-ifunc/pr19784b.c: Likewise.
	* testsuite/ld-ifunc/pr19784c.c: Likewise.
2016-03-08 09:42:16 -08:00
H.J. Lu 205ac18577 Support --as-needed in ifunc tests
Since compiler may pass --as-needed to ld by default, link .o file
before .so file in ifunc tests.

	PR ld/19774
	* testsuite/ld-ifunc/ifunc.exp: Link tmpdir/pr18808a.o before
	tmpdir/libpr18808.so.  Link tmpdir/pr18841a.o before
	tmpdir/libpr18841b.so and tmpdir/libpr18841c.so.  Test
	--as-needed for pr18841c.
2016-03-08 08:45:04 -08:00
H.J. Lu 23a4bd22c7 Support --as-needed in i386/x86-64 tests
Since compiler may pass --as-needed to ld by default, link .o file
before .so file in i386/x86-64 tests.

	PR ld/19774
	* testsuite/ld-i386/i386.exp: Link tmpdir/pr18900.o before
	tmpdir/pr18900.so and test --as-needed.  Link tmpdir/gotpc1.o
	before tmpdir/got1d.so and test --as-needed.
	* testsuite/ld-x86-64/x86-64.exp: Link tmpdir/pr18900.o before
	tmpdir/pr18900.so and test --as-needed.
2016-03-07 09:03:24 -08:00
Jiong Wang 18f822a08f [AArch64] Create .got section if _GLOBAL_OFFSET_TABLE_ referenced
2016-03-07  Jiong Wang  <jiong.wang@arm.com>

bfd/
  * elfnn-aarch64.c (elfNN_aarch64_check_relocs): Always create .got section
  if the symbol "_GLOBAL_OFFSET_TABLE_" referenced.

ld/
  * testsuite/ld-aarch64/implicit_got_section_1.s: New test source file.
  * testsuite/ld-aarch64/implicit_got_section_1.d: New test expected result.
  * testsuite/ld-aarch64/aarch64-elf.exp: Run new test.
2016-03-07 15:40:50 +00:00
H.J. Lu 46175b4e04 Link tmpdir/copyreloc-main.o before tmpdir/copyreloc-lib.so
Since compiler may pass --as-needed to ld by default, link
tmpdir/copyreloc-main.o before tmpdir/copyreloc-lib.so.

	* testsuite/ld-i386/i386.exp: Link tmpdir/copyreloc-main.o
	before tmpdir/copyreloc-lib.so and test --as-needed.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
2016-03-06 08:26:49 -08:00
H.J. Lu e18b24a419 Fix a ChangeLog entry 2016-03-04 06:48:01 -08:00
H.J. Lu 07492f668d Treat common symbol in executable as definition
Common symbol in executable is a definition, which overrides definition
from shared objects.  When linker sees a new definition from a shared
object, the new dynamic definition should be overridden by the previous
common symbol in executable.

bfd/

	PR ld/19579
	* elflink.c (_bfd_elf_merge_symbol): Treat common symbol in
	executable as definition if the new definition comes from a
	shared library.

ld/

	PR ld/19579
	* testsuite/ld-elf/pr19579a.c: New file.
	* testsuite/ld-elf/pr19579b.c: Likewise.
	* testsuite/ld-elf/shared.exp: Run PR ld/19579 test.
2016-03-04 06:37:54 -08:00
H.J. Lu 7bcc503f3e Skip ld-elf/pr19162.d for hppa-*-*
ld-elf/pr19162.d fails for hppa-*-* since Dave Anglin's fix for PR 12376
makes the data segment always start on a page boundary.

	* testsuite/ld-elf/pr19162.d: Skip hppa-*-*.
2016-03-02 19:07:01 -08:00
H.J. Lu 7494161b47 Xfail mix_pic_and_non_pic on arm and aarch64
* testsuite/ld-elf/shared.exp (mix_pic_and_non_pic): Add xfails.
	Xfail mix_pic_and_non_pic on "arm*-*-*" "aarch64*-*-*".
2016-03-02 11:36:00 -08:00
H.J. Lu 523f4c9234 Speedup mmo and pe orphan placement for relocatable link
Since there is no need to place output sections in specific order for
relocatable link, we can skip merging flags of other input sections.

	PR ld/19739
	* emultempl/mmo.em (mmo_place_orphan): Don't merge flags of other
	input sections for relocatable link.
	* emultempl/pe.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
	* emultempl/pep.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
2016-03-02 05:07:50 -08:00
H.J. Lu ef621b15e0 Update PR ld/12365 test for GCC 6
PR ld/12365 test is to verify that linker catches the reference to
undefined symbol error caused by a GCC bug.  Since the GCC bug has
been fixed in GCC 6, update the test to verify that there is no
reference to undefined symbol in executable

	* testsuite/ld-plugin/lto.exp: Update PR ld/12365 test for GCC 6.
2016-03-01 12:45:18 -08:00
H.J. Lu 2955a517f3 Skip ld-elf/pr19162.d for arc target
* testsuite/ld-elf/pr19162.d: Skip arc target.
2016-03-01 08:11:51 -08:00
H.J. Lu 077fcd6a3b Speedup ELF orphan placement for relocatable link
Since there is no need to place output sections in specific order for
relocatable link, we can skip merging flags of other input sections.

	PR ld/19739
	* ld/emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't
	merge flags of other input sections for relocatable link.
2016-03-01 05:38:46 -08:00
H.J. Lu 7f50ebc1b1 Add a testcase for PR ld/19162
PR ld/19162
	* testsuite/ld-elf/pr19162.d: New file.
	* testsuite/ld-elf/pr19162a.s: Likwise.
	* testsuite/ld-elf/pr19162b.s: Likwise.
2016-02-29 10:37:59 -08:00
Claudiu Zissulescu 841fdfcdd9 [ARC] Local symbols relocation cleanup
bfd/
2016-02-29  Cupertino Miranda  <cmiranda@synopsys.com>

	* elf32-arc.c (elf_arc_relocate_section): Added rules to fix the
	relocation addend when sections get merged.

gas/
2016-02-29  Cupertino Miranda  <cmiranda@synopsys.com>
	    Claudiu Zissulescu  <Claudiu.Zissulescu@synopsys.com>

        * config/tc-arc.c (arc_extra_reloc): Change size to 0.
        (tc_arc_fix_adjustable): Changed default return value to 1.
        * testsuite/gas/arc/j.d: Updated expected symbol
        * testsuite/gas/arc/jl.d: Likewise
        * testsuite/gas/arc/relax-avoid1.d: Likewise
        * testsuite/gas/arc/st.d: Likewise

ld/
2016-02-29 Cupertino Miranda  <cmiranda@synopsys.com>

	* testsuite/ld-elf/merge.d: Removed xfail for ARC.
	* testsuite/ld-elf/merge2.d: Likewise.
	* testsuite/ld-elf/merge3.d: Likewise.
2016-02-29 16:51:11 +01:00
Claudiu Zissulescu 7e4588997e [ARC] General fixes.
bfd/
2016-02-29  Cupertino Miranda <Cupertino.Miranda@synopsys.com>

	* elf32-arc.c (arc_elf_final_write_processing): Add condition to
	the flag change.
        (elf_arc_relocate_section): Fixes and conditions to support PIE.
	Assert for code sections dynamic relocs.

gas/
2016-02-29  Claudiu Zissulescu  <Claudiu.Zissulescu@synopsys.com>

	* config/tc-arc.c: Enable code density instructions for ARC EM.

ld/
2016-02-29  Cupertino Miranda  <Cupertino.Miranda@synopsys.com>

	* scripttempl/arclinux.sc: Force .tdata and .tbss to always be
	generated.
2016-02-29 16:07:48 +01:00
Joel Sherrill 12a132db16 Add aarch64-*-rtems* target 2016-02-26 14:07:27 -06:00
Joel Sherrill f73dbb0e48 Add x86_64-*-rtems* target
ld/configure.tgt: Also add stanza for x86_64-*-elf.
2016-02-26 14:07:26 -06:00
Renlin Li c5e3a3641e [BFD][AARCH64]Fix MOVW_SABS_G(0,1,2) relocation overflow check.
For these three relocations, 17 bit signed value should be used, instead of
16 bit. The bitsize field is changed from 16 to 17, this field in aarch64
backend is used for overflow check only.

bfd/

2016-02-26  Renlin Li  <renlin.li@arm.com>

    * elfnn-aarch64.c (elfNN_aarch64_howto_table): Fix signed overflow
    check for MOVW_SABS_G0, MOVW_SABS_G1, MOVW_SABS_G2.

ld/

2016-02-26  Renlin Li  <renlin.li@arm.com>

    * testsuite/ld-aarch64/aarch64-elf.exp: Run new testcases.
    * testsuite/ld-aarch64/emit-relocs-270.d: Update to use new boundary.
    * testsuite/ld-aarch64/emit-relocs-271.d: Likewise.
    * testsuite/ld-aarch64/emit-relocs-272.d: Likewise.
    * testsuite/ld-aarch64/emit-relocs-270-overflow.d: New.
    * testsuite/ld-aarch64/emit-relocs-270-overflow.s: New.
    * testsuite/ld-aarch64/emit-relocs-271-overflow.d: New.
    * testsuite/ld-aarch64/emit-relocs-271-overflow.s: New.
    * testsuite/ld-aarch64/emit-relocs-272-overflow.d: New.
    * testsuite/ld-aarch64/emit-relocs-272-overflow.s: New.
2016-02-26 18:00:15 +00:00
H.J. Lu bae420ef26 Optimize x86 GOT32X/GOTPCRELX relocations
R_386_GOT32X, R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX relocations
retrieve the symbol address via its GOT slot.  If the symbol address is
known at the link-time, we can use it directly by changing instruction
encoding.  Indirect branch can only be converted to PC relative direct
branch.  MOV can be changed to LEA or encoded differently with signed
address.  The subset of binary operations can be encoded only with
signed address.

If undefined weak symbol is resolved to zero link-time, we can use it
as address.  Zero addresss can't used with PC relative direct branch
when PIC is true since the current PC is unknown.  In 64-bit, 32-bit
relocation for PC relatiave direct branch to zero may also overflow.

If this optimization causes relocation overflow, --no-relax can be used
to work around it.

bfd/

	PR ld/19609
	* elf32-i386.c (elf_i386_convert_load): Convert to R_386_32 for
	load with locally bound symbols if PIC is false or there is no
	base register.  Optimize branch to 0 if PIC is false.
	(elf_i386_relocate_section): Don't generate dynamic relocations
	against undefined weak symbols if PIC is false.
	* elf64-x86-64.c (elf_x86_64_convert_load): Disable optimization
	if we can't estimate relocation overflow with --no-relax.
	Convert to R_X86_64_32S/R_X86_64_32 for load with locally bound
	symbols if PIC is false.  Optimize branch to 0 if PIC is false.
	(elf_x86_64_relocate_section): Don't generate dynamic relocations
	against undefined weak symbols if PIC is false.

ld/

	PR ld/19609
	* testsuite/ld-i386/got1.dd: Updated.
	* testsuite/ld-i386/lea1c.d: Likewise.
	* testsuite/ld-i386/load1-nacl.d: Likewise.
	* testsuite/ld-i386/load1.d: Likewise.
	* testsuite/ld-i386/load4b.d: Likewise.
	* testsuite/ld-i386/load5b.d: Likewise.
	* testsuite/ld-i386/mov1b.d: Likewise.
	* testsuite/ld-x86-64/mov1b.d: Likewise.
	* testsuite/ld-x86-64/mov1d.d: Likewise.
	* testsuite/ld-ifunc/ifunc-21-i386.d: Likewise.
	* testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise.
	* testsuite/ld-ifunc/ifunc-22-i386.d: Likewise.
	* testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise.
	* testsuite/ld-x86-64/gotpcrel1.dd: Likewise.
	* testsuite/ld-x86-64/lea1a.d: Likewise.
	* testsuite/ld-x86-64/lea1b.d: Likewise.
	* testsuite/ld-x86-64/lea1c.d: Likewise.
	* testsuite/ld-x86-64/lea1d.d: Likewise.
	* testsuite/ld-x86-64/lea1e.d: Likewise.
	* testsuite/ld-x86-64/lea1f.d: Likewise.
	* testsuite/ld-x86-64/mov1b.d: Likewise.
	* testsuite/ld-x86-64/mov1d.d: Likewise.
	* testsuite/ld-x86-64/pr13082-3b.d: Likewise.
	* testsuite/ld-x86-64/pr13082-4b.d: Likewise.
	* testsuite/ld-x86-64/lea1.s: Add tests for 32-bit registers.
	* testsuite/ld-i386/pr19609-1.s: New file.
	* testsuite/ld-i386/pr19609-1a.d: Likewise.
	* testsuite/ld-i386/pr19609-1b.d: Likewise.
	* testsuite/ld-i386/pr19609-1c.d: Likewise.
	* testsuite/ld-i386/pr19609-1d.d: Likewise.
	* testsuite/ld-i386/pr19609-1e.d: Likewise.
	* testsuite/ld-i386/pr19609-1f.d: Likewise.
	* testsuite/ld-i386/pr19609-1g.d: Likewise.
	* testsuite/ld-i386/pr19609-1h.d: Likewise.
	* testsuite/ld-i386/pr19609-1i.d: Likewise.
	* testsuite/ld-i386/pr19609-2.s: Likewise.
	* testsuite/ld-i386/pr19609-2a.d: Likewise.
	* testsuite/ld-i386/pr19609-2b.d: Likewise.
	* testsuite/ld-i386/pr19609-2c.d: Likewise.
	* testsuite/ld-i386/undefweak.s: Likewise.
	* testsuite/ld-i386/undefweaka.d: Likewise.
	* testsuite/ld-i386/undefweakb.d: Likewise.
	* testsuite/ld-x86-64/pr13082-3c.d: Likewise.
	* testsuite/ld-x86-64/pr13082-3d.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1.s: Likewise.
	* testsuite/ld-x86-64/pr19609-1a.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1b.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1c.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1d.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1e.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1f.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1g.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1h.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1i.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1j.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1k.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1l.d: Likewise.
	* testsuite/ld-x86-64/pr19609-1m.d: Likewise.
	* testsuite/ld-x86-64/pr19609-2.s: Likewise.
	* testsuite/ld-x86-64/pr19609-2a.d: Likewise.
	* testsuite/ld-x86-64/pr19609-2b.d: Likewise.
	* testsuite/ld-x86-64/pr19609-2c.d: Likewise.
	* testsuite/ld-x86-64/pr19609-2d.d: Likewise.
	* testsuite/ld-x86-64/pr19609-3.s: Likewise.
	* testsuite/ld-x86-64/pr19609-3a.d: Likewise.
	* testsuite/ld-x86-64/pr19609-3b.d: Likewise.
	* testsuite/ld-x86-64/pr19609-4.s: Likewise.
	* testsuite/ld-x86-64/pr19609-4a.d: Likewise.
	* testsuite/ld-x86-64/pr19609-4b.d: Likewise.
	* testsuite/ld-x86-64/pr19609-4c.d: Likewise.
	* testsuite/ld-x86-64/pr19609-4d.d: Likewise.
	* testsuite/ld-x86-64/pr19609-4e.d: Likewise.
	* testsuite/ld-x86-64/pr19609-5.s: Likewise.
	* testsuite/ld-x86-64/pr19609-5a.d: Likewise.
	* testsuite/ld-x86-64/pr19609-5b.d: Likewise.
	* testsuite/ld-x86-64/pr19609-5c.d: Likewise.
	* testsuite/ld-x86-64/pr19609-5d.d: Likewise.
	* testsuite/ld-x86-64/pr19609-5e.d: Likewise.
	* testsuite/ld-x86-64/pr19609-6.s: Likewise.
	* testsuite/ld-x86-64/pr19609-6a.d: Likewise.
	* testsuite/ld-x86-64/pr19609-6b.d: Likewise.
	* testsuite/ld-x86-64/pr19609-6c.d: Likewise.
	* testsuite/ld-x86-64/pr19609-6d.d: Likewise.
	* testsuite/ld-x86-64/pr19609-7.s: Likewise.
	* testsuite/ld-x86-64/pr19609-7a.d: Likewise.
	* testsuite/ld-x86-64/pr19609-7b.d: Likewise.
	* testsuite/ld-x86-64/pr19609-7c.d: Likewise.
	* testsuite/ld-x86-64/pr19609-7d.d: Likewise.
	* testsuite/ld-i386/i386.exp: Run undefweak tests and tests for
	PR ld/19609.
	* testsuite/ld-x86-64/x86-64.exp: Run pr13082-3c, pr13082-3d
	and tests for PR ld/19609.
2016-02-26 09:39:24 -08:00
H.J. Lu 11e5f1ec54 Add ChangeLog entries for PR ld/19645 2016-02-26 06:44:03 -08:00
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
H.J. Lu aec6b87e0b [x86] Resolve non-PIC undefweak symbols in executable
For i386 and x86-64, non-PIC references to undefined weak symbols are
resolved without dynamic relocation when creating executable.  Resolved
undefined weak symbols are removed from the dynamic symbol table in
executable.  One exception is on i386, we need resolved undefined weak
symbols in the dynamic symbol table in PIE if input relocatable files
contain branchs without PLT so that we can branch to 0 with dynamic
relocation in text section.

This makes behaviors of dynamic executable and position independent
executable predictable with mixed PIC and non-PIC references to undefined
weak symbols.  If all references to undefined weak symbols are PIC,
dynamic relocations against undefined weak symbols will be generated
in executable unless -z nodynamic-undefined-weak is passed to linker.

bfd/

	PR ld/19636
	PR ld/19704
	PR ld/19719
	* elf32-i386.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New.
	(elf_i386_link_hash_entry): Add has_got_reloc and
	has_non_got_reloc.
	(elf_i386_link_hash_table): Add interp.
	(elf_i386_link_hash_newfunc): Initialize has_got_reloc and
	has_non_got_reloc.
	(elf_i386_copy_indirect_symbol): Copy has_got_reloc and
	has_non_got_reloc.
	(elf_i386_check_relocs): Set has_got_reloc and has_non_got_reloc.
	(elf_i386_fixup_symbol): New function.
	(elf_i386_pie_finish_undefweak_symbol): Likewise.
	(elf_i386_allocate_dynrelocs): Don't allocate space for dynamic
	relocations and discard relocations against resolved undefined
	weak symbols in executable.  Don't make resolved undefined weak
	symbols in executable dynamic.  Keep dynamic non-GOT/non-PLT
	relocation against undefined weak symbols in PIE.
	(elf_i386_size_dynamic_sections): Set interp to .interp section.
	(elf_i386_relocate_section): Don't generate dynamic relocations
	against resolved undefined weak symbols in PIE, except for
	R_386_PC32.
	(elf_i386_finish_dynamic_symbol): Keep PLT/GOT entries without
	dynamic PLT/GOT relocations for resolved undefined weak symbols.
	Don't generate dynamic relocation against resolved undefined weak
	symbol in executable.
	(elf_i386_finish_dynamic_sections): Call
	elf_i386_pie_finish_undefweak_symbol on all symbols in PIE.
	(elf_backend_fixup_symbol): New.
	* elf64-x86-64.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New.
	(elf_x86_64_link_hash_entry): Add has_got_reloc and
	has_non_got_reloc.
	(elf_x86_64_link_hash_table): Add interp.
	(elf_x86_64_link_hash_newfunc): Initialize has_got_reloc and
	has_non_got_reloc.
	(elf_x86_64_copy_indirect_symbol): Copy has_got_reloc and
	has_non_got_reloc.
	(elf_x86_64_check_relocs): Set has_got_reloc and
	has_non_got_reloc.
	(elf_x86_64_fixup_symbol): New function.
	(elf_x86_64_pie_finish_undefweak_symbol): Likewise.
	(elf_x86_64_allocate_dynrelocs): Don't allocate space for dynamic
	relocations and discard relocations against resolved undefined
	weak symbols in executable.  Don't make resolved undefined weak
	symbols in executable dynamic.
	(elf_x86_64_size_dynamic_sections): Set interp to .interp section.
	(elf_x86_64_relocate_section): Check relocation overflow for
	dynamic relocations against unresolved weak undefined symbols.
	Don't generate dynamic relocations against resolved weak
	undefined symbols in PIE.
	(elf_x86_64_finish_dynamic_symbol): Keep PLT/GOT entries without
	dynamic PLT/GOT relocations for resolved undefined weak symbols.
	Don't generate dynamic relocation against resolved undefined weak
	symbol in executable.
	(elf_x86_64_finish_dynamic_sections): Call
	elf_x86_64_pie_finish_undefweak_symbol on all symbols in PIE.
	(elf_backend_fixup_symbol): New.

include/

	PR ld/19636
	PR ld/19704
	PR ld/19719
	* bfdlink.h (bfd_link_info): Add dynamic_undefined_weak.

ld/

	PR ld/19636
	PR ld/19704
	PR ld/19719
	* Makefile.am (ELF_X86_DEPS): Add dynamic_undefined_weak.sh.
	* Makefile.in: Regenerated.
	* NEWS: Mention -z nodynamic-undefined-weak.
	* ld.texinfo: Document -z nodynamic-undefined-weak.
	* ldmain.c (main): Initialize dynamic_undefined_weak to -1.
	* emulparams/dynamic_undefined_weak.sh: New file.
	* emulparams/elf32_x86_64.sh: Source dynamic_undefined_weak.sh.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_i386_be.sh: Likewise.
	* emulparams/elf_i386_chaos.sh: Likewise.
	* emulparams/elf_i386_ldso.sh: Likewise.
	* emulparams/elf_i386_vxworks.sh: Likewise.
	* emulparams/elf_iamcu.sh: Likewise.
	* emulparams/elf_k1om.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/extern_protected_data.sh (PARSE_AND_LIST_OPTIONS):
	Append.
	(PARSE_AND_LIST_ARGS_CASE_Z): Likewise.
	* testsuite/ld-elf/pr19719a.c: New file.
	* testsuite/ld-elf/pr19719b.c: Likewise.
	* testsuite/ld-elf/pr19719c.c: Likewise.
	* testsuite/ld-elf/pr19719d.c: Likewise.
	* testsuite/ld-i386/pr19636-1.s: Likewise.
	* testsuite/ld-i386/pr19636-1a.d: Likewise.
	* testsuite/ld-i386/pr19636-1b.d: Likewise.
	* testsuite/ld-i386/pr19636-1c.d: Likewise.
	* testsuite/ld-i386/pr19636-1d-nacl.d: Likewise.
	* testsuite/ld-i386/pr19636-1d.d: Likewise.
	* testsuite/ld-i386/pr19636-1e.d: Likewise.
	* testsuite/ld-i386/pr19636-1f.d: Likewise.
	* testsuite/ld-i386/pr19636-1g.d: Likewise.
	* testsuite/ld-i386/pr19636-1h.d: Likewise.
	* testsuite/ld-i386/pr19636-1i.d: Likewise.
	* testsuite/ld-i386/pr19636-2.s: Likewise.
	* testsuite/ld-i386/pr19636-2a.d: Likewise.
	* testsuite/ld-i386/pr19636-2b.d: Likewise.
	* testsuite/ld-i386/pr19636-2c-nacl.d: Likewise.
	* testsuite/ld-i386/pr19636-2c.d: Likewise.
	* testsuite/ld-i386/pr19636-2d-nacl.d: Likewise.
	* testsuite/ld-i386/pr19636-2d.d: Likewise.
	* testsuite/ld-i386/pr19636-2e-nacl.d: Likewise.
	* testsuite/ld-i386/pr19636-2e.d: Likewise.
	* testsuite/ld-i386/pr19636-3.s: Likewise.
	* testsuite/ld-i386/pr19636-3a.d: Likewise.
	* testsuite/ld-i386/pr19636-3b.d: Likewise.
	* testsuite/ld-i386/pr19636-3c.d: Likewise.
	* testsuite/ld-i386/pr19636-3d.d: Likewise.
	* testsuite/ld-i386/pr19636-3e.d: Likewise.
	* testsuite/ld-i386/pr19636-3f.d: Likewise.
	* testsuite/ld-i386/pr19636-3g.d: Likewise.
	* testsuite/ld-i386/pr19636-4.s: Likewise.
	* testsuite/ld-i386/pr19636-4a.d: Likewise.
	* testsuite/ld-i386/pr19636-4b.d: Likewise.
	* testsuite/ld-i386/pr19636-4c.d: Likewise.
	* testsuite/ld-i386/pr19636-4d.d: Likewise.
	* testsuite/ld-i386/pr19704.out: Likewise.
	* testsuite/ld-i386/pr19704a.c: Likewise.
	* testsuite/ld-i386/pr19704b.c: Likewise.
	* testsuite/ld-x86-64/pr19636-1.s: Likewise.
	* testsuite/ld-x86-64/pr19636-1a.d: Likewise.
	* testsuite/ld-x86-64/pr19636-1b.d: Likewise.
	* testsuite/ld-x86-64/pr19636-1c.d: Likewise.
	* testsuite/ld-x86-64/pr19636-1d.d: Likewise.
	* testsuite/ld-x86-64/pr19636-1e.d: Likewise.
	* testsuite/ld-x86-64/pr19636-1f.d: Likewise.
	* testsuite/ld-x86-64/pr19636-1g.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2.s: Likewise.
	* testsuite/ld-x86-64/pr19636-2a.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2b.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2c.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2d-nacl.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2d.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2e.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2f.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2g.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2h.d: Likewise.
	* testsuite/ld-x86-64/pr19636-2i.d: Likewise.
	* testsuite/ld-x86-64/pr19636-3.s: Likewise.
	* testsuite/ld-x86-64/pr19636-3a.d: Likewise.
	* testsuite/ld-x86-64/pr19636-3b.d: Likewise.
	* testsuite/ld-x86-64/pr19636-3c.d: Likewise.
	* testsuite/ld-x86-64/pr19636-3d.d: Likewise.
	* testsuite/ld-x86-64/pr19704.out: Likewise.
	* testsuite/ld-x86-64/pr19704a.c: Likewise.
	* testsuite/ld-x86-64/pr19704b.c: Likewise.
	* testsuite/ld-elf/shared.exp (mix_pic_and_non_pic): New.
	Run mix_pic_and_non_pic.
	* testsuite/ld-i386/i386.exp (undefined_weak): New.
	Run undefined_weak and PR ld/19636 tests.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/ld-x86-64/pr13082-3b.d: Updated.
	* testsuite/ld-x86-64/pr13082-4b.d: Likewise.
2016-02-26 04:55:57 -08:00
Nick Clifton 920e4862a2 Remove unused field from ld_config_type structure.
* ld.h (struct ld_config_type): Remove specified_data_size field.
2016-02-25 10:33:29 +00:00
H.J. Lu 0f550b3df1 Update symbol version for symbol from linker script
We need to update symbol version for symbols from linker script.

bfd/

	PR ld/19698
	* elflink.c (bfd_elf_record_link_assignment): Set versioned if
	symbol version is unknown.

ld/

	PR ld/19698
	* testsuite/ld-elf/pr19698.d: New file.
	* testsuite/ld-elf/pr19698.s: Likewise.
	* testsuite/ld-elf/pr19698.t: Likewise.
2016-02-24 15:13:48 -08:00
Renlin Li 92d77487b3 Revert "ABS32"
This reverts commit 30bdf5c82e.
2016-02-24 15:01:07 +00:00
Renlin Li 30bdf5c82e ABS32 2016-02-24 14:01:48 +00:00
H.J. Lu 31866b2cd4 Replace $(ELF_DEPS) with $(ELF_X86_DEPS)
Define ELF_X86_DEPS with $(ELF_DEPS) plus emulparams/plt_unwind.sh,
extern_protected_data.sh and call_nop.sh.

	* Makefile.am (ELF_X86_DEPS): New.
	(eelf_i386.c): Replace $(ELF_DEPS) with $(ELF_X86_DEPS).
	(eelf_i386_chaos.c): Likewise.
	(eelf_i386_fbsd.c): Likewise.
	(eelf_i386_ldso.c): Likewise.
	(eelf_i386_nacl.c): Likewise.
	(eelf_i386_sol2.c): Likewise.
	(eelf_iamcu.c): Likewise.
	(eelf32_x86_64.c): Likewise.
	(eelf32_x86_64_nacl.c): Likewise.
	(eelf_l1om.c): Likewise.
	(eelf_l1om_fbsd.c): Likewise.
	(eelf_k1om.c): Likewise.
	(eelf_k1om_fbsd.c): Likewise.
	(eelf_x86_64.c): Likewise.
	(eelf_x86_64_cloudabi.c): Likewise.
	(eelf_x86_64_fbsd.c): Likewise.
	(eelf_x86_64_sol2.c): Likewise.
	* Makefile.in: Regenerated.
2016-02-23 08:24:18 -08:00
H.J. Lu 6b3b0ab896 Make linker assigned symbol dynamic only for shared object
Linker assigned symbols should be made dynamic by default only when
creating shared object or relocatable executable.

bfd/

	* elflink.c (bfd_elf_record_link_assignment): Check for shared
	library, instead of PIC, and don't check PDE when making linker
	assigned symbol dynamic.

ld/

	* testsuite/ld-frv/fdpic-pie-6.d: Updated.
	* testsuite/ld-mips-elf/pie-n32.d: Likewise.
	* testsuite/ld-mips-elf/pie-n64.d: Likewise.
	* testsuite/ld-mips-elf/pie-o32.d: Likewise.
2016-02-23 05:19:03 -08:00
H.J. Lu de818c22b6 Skip pr19539 test for cris*-*-* targets
cris*-*-* targets doesn't support PIE with relocation in pr19539 test.

	* testsuite/ld-elf/pr19539.d: Skip cris*-*-* targets.
2016-02-20 14:45:25 -08:00
H.J. Lu c304e18e5c Enable PR ld/19617 tests only for Linux/GNU/Solaris
Since PR ld/19617 tests require share library support, enable them
only for Linux/GNU/Solaris targets.

	* testsuite/ld-elf/pr19617a.d: Enable only for *-*-linux*,
	*-*-gnu* and *-*-solaris*.
	* testsuite/ld-elf/pr19617b.d: Likewise.
	* testsuite/ld-elf/pr19617c.d: Likewise.
2016-02-18 07:48:57 -08:00
H.J. Lu bf89386a86 Always create dynamic sections for -E/--dynamic-list
In embedded environments, including boot loaders, the non-PIC executable
needs to export its symbols to modules loaded in the future.  We should
always create dynamic sections for -E/--dynamic-list.

bfd/

	PR ld/19617
	* elflink.c (elf_link_add_object_symbols): Always create dynamic
	sections for -E/--dynamic-list.

ld/

	PR ld/19617
	* testsuite/ld-elf/pr19617.s: New file.
	* testsuite/ld-elf/pr19617a.d: Likewise.
	* testsuite/ld-elf/pr19617b.d: Likewise.
	* testsuite/ld-elf/pr19617c.d: Likewise.
2016-02-18 03:13:51 -08:00
Nick Clifton 06ea285dcb Fix computation of CXX_FOR_TARGET so that it can detect an in-tree xg++ executable.
* Makefile.am (CXX_FOR_TARGET): Check for the presence of an
	in-tree xg++ executable after checking for the presence of an
	in-tree g++ executable.
	* Makefile.in: Regenerate.
2016-02-18 10:10:36 +00:00
H.J. Lu b27ab9ad1c Update IFUNC tests for x32
* testsuite/ld-ifunc/ifunc-1-local-x86.d: Updated.
	* testsuite/ld-ifunc/ifunc-1-x86.d: Likewise.
	* testsuite/ld-ifunc/ifunc-3a-x86.d: Likewise.
2016-02-17 13:05:06 -08:00
H.J. Lu 8f79b794ce [x86-64] Omit dynamic sections symbols
Define elf_backend_omit_section_dynsym to bfd_true for x86-64, similar
to i386, x86-64 doesn't need dynamic sections symbols.

bfd/

	* elf64-x86-64.c (elf_backend_omit_section_dynsym): New.  Defined
	to bfd_true.

ld/

	* testsuite/ld-ifunc/ifunc-1-local-x86.d: Updated.
	* testsuite/ld-ifunc/ifunc-1-x86.d: Likewise.
	* testsuite/ld-ifunc/ifunc-2-local-x86-64.d: Likewise.
	* testsuite/ld-ifunc/ifunc-2-x86-64.d: Likewise.
	* testsuite/ld-ifunc/ifunc-3a-x86.d: Likewise.
	* testsuite/ld-ifunc/pr17154-x86-64.d: Likewise.
	* testsuite/ld-x86-64/bnd-ifunc-1.d: Likewise.
	* testsuite/ld-x86-64/bnd-ifunc-2.d: Likewise.
	* testsuite/ld-x86-64/bnd-plt-1.d: Likewise.
	* testsuite/ld-x86-64/ilp32-4-nacl.d: Likewise.
	* testsuite/ld-x86-64/ilp32-4.d: Likewise.
	* testsuite/ld-x86-64/load1c-nacl.d: Likewise.
	* testsuite/ld-x86-64/load1c.d: Likewise.
	* testsuite/ld-x86-64/load1d-nacl.d: Likewise.
	* testsuite/ld-x86-64/load1d.d: Likewise.
	* testsuite/ld-x86-64/pr14207.d: Likewise.
	* testsuite/ld-x86-64/pr19162.d: Likewise.
	* testsuite/ld-x86-64/tlsdesc-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlsdesc.rd: Likewise.
	* testsuite/ld-x86-64/tlsgdesc-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlsgdesc.rd: Likewise.
	* testsuite/ld-x86-64/tlspic-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlspic.rd: Likewise.
2016-02-17 11:19:04 -08:00
Nick Clifton b3e3e0b781 Skip eh-frame-hdr test for arc-elf targets.
ld	* testsuite/ld-elf/eh-frame-hdr.d: Skip for ARC ELF targets.
2016-02-17 10:20:53 +00:00
Nick Clifton 9fb71ee49f Enhance GAS's .section directive so that it can take numeric values for the flags and type fields. (ELF only)
gas	* doc/as.texinfo (.section): Document that numeric values can now
	be used for the flags and type fields of the ELF target's .section
	directive.  Add notes about the restrictions on setting flags and
	types.
	* config/obj-elf.c (obj_elf_change_section): Allow known sections
	to be given processor specific section types.  Allow processor and
	application specific flags of a section to be set after
	definition.
	(obj_elf_parse_section_letters): Handle parsing numeric values.
	(obj_elf_section_type): Handle parsing numeric values.
	(obj_elf_section): Allow numeric type values.
	* config/obj-elf.h (obj_elf_change_section): Update prototype.
	* testsuite/gas/elf/section10.d: New test.
	* testsuite/gas/elf/section10.s: Source file for new test.
	* testsuite/gas/elf/elf.exp: Run the new test.
	* testsuite/gas/i386/ilp32/x86-64-unwind.d: Remove dependency upon
	the description of the flags produced by readelf.
	* testsuite/gas/tic6x/scomm-directive-4.d: Likewise.
	* NEWS: Mention the new feature.

bfd	* elf-bfd.h (struct bfd_elf_special_section): Use unsigned values
	for length and type fields.  Use a signed value for the
	suffix_length field.

binutils* readelf.c (get_section_type_name): Add hex prefix to offsets
	printed for LOPROC and LOOS values.  Ensure that a result is
	always returned for the V850 target, even when an unrecognised
	processor specific value is encountered.
	(process_section_headers): Display key values in the order in
	which they appear to the user.  Add the "C (compressed)" value to
	the list.

ld	* testsuite/ld-i386/pr12718.d: Remove dependency upon the
	description of the flags produced by readelf.
	* testsuite/ld-i386/pr12921.d: Likewise.
	* testsuite/ld-i386/tlsbin-nacl.rd: Likewise.
	* testsuite/ld-i386/tlsbin.rd: Likewise.
	* testsuite/ld-i386/tlsbindesc-nacl.rd: Likewise.
	* testsuite/ld-i386/tlsbindesc.rd: Likewise.
	* testsuite/ld-i386/tlsdesc-nacl.rd: Likewise.
	* testsuite/ld-i386/tlsdesc.rd: Likewise.
	* testsuite/ld-i386/tlsgdesc-nacl.rd: Likewise.
	* testsuite/ld-i386/tlsgdesc.rd: Likewise.
	* testsuite/ld-i386/tlsnopic-nacl.rd: Likewise.
	* testsuite/ld-i386/tlsnopic.rd: Likewise.
	* testsuite/ld-i386/tlspic-nacl.rd: Likewise.
	* testsuite/ld-i386/tlspic.rd: Likewise.
	* testsuite/ld-s390/tlsbin.rd: Likewise.
	* testsuite/ld-s390/tlsbin_64.rd: Likewise.
	* testsuite/ld-s390/tlspic.rd: Likewise.
	* testsuite/ld-s390/tlspic_64.rd: Likewise.
	* testsuite/ld-sh/tlsbin-2.d: Likewise.
	* testsuite/ld-sh/tlspic-2.d: Likewise.
	* testsuite/ld-tic6x/common.d: Likewise.
	* testsuite/ld-tic6x/shlib-1.rd: Likewise.
	* testsuite/ld-tic6x/shlib-1b.rd: Likewise.
	* testsuite/ld-tic6x/shlib-1r.rd: Likewise.
	* testsuite/ld-tic6x/shlib-1rb.rd: Likewise.
	* testsuite/ld-tic6x/shlib-app-1.rd: Likewise.
	* testsuite/ld-tic6x/shlib-app-1b.rd: Likewise.
	* testsuite/ld-tic6x/shlib-app-1r.rd: Likewise.
	* testsuite/ld-tic6x/shlib-app-1rb.rd: Likewise.
	* testsuite/ld-tic6x/shlib-noindex.rd: Likewise.
	* testsuite/ld-tic6x/static-app-1.rd: Likewise.
	* testsuite/ld-tic6x/static-app-1b.rd: Likewise.
	* testsuite/ld-tic6x/static-app-1r.rd: Likewise.
	* testsuite/ld-tic6x/static-app-1rb.rd: Likewise.
	* testsuite/ld-x86-64/ilp32-4-nacl.d: Likewise.
	* testsuite/ld-x86-64/ilp32-4.d: Likewise.
	* testsuite/ld-x86-64/pr12718.d: Likewise.
	* testsuite/ld-x86-64/pr12921.d: Likewise.
	* testsuite/ld-x86-64/split-by-file-nacl.rd: Likewise.
	* testsuite/ld-x86-64/split-by-file.rd: Likewise.
	* testsuite/ld-x86-64/tlsbin-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlsbin.rd: Likewise.
	* testsuite/ld-x86-64/tlsbindesc-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlsbindesc.rd: Likewise.
	* testsuite/ld-x86-64/tlsdesc-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlsdesc.rd: Likewise.
	* testsuite/ld-x86-64/tlsgdesc-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlsgdesc.rd: Likewise.
	* testsuite/ld-x86-64/tlspic-nacl.rd: Likewise.
	* testsuite/ld-x86-64/tlspic.rd: Likewise.
	* testsuite/ld-xtensa/tlsbin.rd: Likewise.
	* testsuite/ld-xtensa/tlspic.rd: Likewise.
2016-02-15 11:11:46 +00:00
H.J. Lu ee5db48b40 Fix a typo in ld/ChangeLog 2016-02-11 15:37:00 -08:00