Commit Graph

1662 Commits

Author SHA1 Message Date
Cary Coutant
0ed4b0bf3d Remove redundant include of "output.h".
gold/
	PR gold/17971
	* incremental.cc: Remove redundant include of "output.h".
2015-02-16 20:15:07 -08:00
Jing Yu
1a920511af Add missing TLSLE relocations for gold aarch64 backend.
gold/ChangeLog:
	* aarch64-reloc.def (TLSLE_MOVW_TPREL_G2, TLSLE_MOVW_TPREL_G1,
	TLSLE_MOVW_TPREL_G1_NC, TLSLE_MOVW_TPREL_G0, TLSLE_MOVW_TPREL_G0_NC,):
	New relocation.
	* aarch64.cc (Target_aarch64::Scan::local): Add cases for new
	TLSLE_MOVW_* relocations.
	(Target_aarch64::Scan::global): Likewise.
	(Target_aarch64::Relocate::relocate): Likewise.
	(Target_aarch64::Relocate::relocate_tls): Add cases and handlings
	for new TLSLE_MOVW_* relocations.
2015-02-12 14:51:57 -08:00
Will Newton
07f107f306 gold/arm.cc: Output mapping symbol for PLT code
Output an ARM state mapping symbol at the start of the PLT. With the
current code objdump will fail to disassemble the PLT that gold
creates.

gold/ChangeLog:

2015-02-11  Will Newton  <will.newton@linaro.org>

	PR gold/13321
	* arm.cc (Target_arm::make_plt_section): Create an ARM
	state mapping symbol at the start of the PLT.
2015-02-11 15:18:59 +08:00
H.J. Lu
e051a5b512 Replace two_file_shared_2.so with two_file_shared_1.so
There are

two_file_shared_2_pic_1_test_LDADD = two_file_test_2_pic.o two_file_shared_1.so

There should be two_file_shared_1.so, not two_file_shared_2.so in
two_file_shared_2_pic_1_test_DEPENDENCIES.

	* testsuite/Makefile.am (two_file_shared_2_pic_1_test_DEPENDENCIES):
	Replace two_file_shared_2.so with two_file_shared_1.so.
	* testsuite/Makefile.in: Regenerated.
2015-02-09 05:36:02 -08:00
Alan Modra
dddcc5b9a8 Gold testsuite make clean
* testsuite/Makefile.am (MOSTLYCLEANFILES): Add libweak_undef_2.a,
	plugin_test_thin.a and defsym_test.
	* testsuite/Makefile.in: Regenerate.
2015-02-09 13:19:53 +10:30
Rafael Ávila de Espíndola
b39b8b9d90 Combine loop epilogue into main loop body to reduce duplication. 2015-02-04 17:37:05 -05:00
Cary Coutant
b66d1c52ac Add missing ChangeLog entry. 2015-02-04 10:36:25 -08:00
Peter Collingbourne
3c537f7fdb Resolve forwarding symbols in plugins.
2015-02-04  Peter Collingbourne  <pcc@google.com>

	* plugin.cc (Pluginobj::get_symbol_resolution_info): Resolve
	forwarding symbols when computing symbol resolution info for plugins.
2015-02-04 09:48:22 -08:00
Cary Coutant
23081de018 Add missing ChangeLog entries. 2015-02-03 20:18:25 -08:00
Cary Coutant
2cfbf2fece Fix a file descriptor leak in gold.
When an LTO linker plugin claims an external member of a thin archive, gold
does not properly unlock the file and make its file descriptor available for
reuse. This patch fixes the problem by modifying Archive::include_member to
unlock the object file via an RAII class instance, ensuring that it will be
unlocked no matter what path is taken through the function.

gold/
	PR gold/15660
	* archive.cc (Thin_archive_object_unlocker): New class.
	(Archive::include_member): Unlock external members of thin archives.
	* testsuite/Makefile.am (plugin_test_1): Rename .syms files.
	(plugin_test_2): Likewise.
	(plugin_test_3): Likewise.
	(plugin_test_4): Likewise.
	(plugin_test_5): Likewise.
	(plugin_test_6): Likewise.
	(plugin_test_7): Likewise.
	(plugin_test_8): Likewise.
	(plugin_test_9): Likewise.
	(plugin_test_10): Likewise.
	(plugin_test_11): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/plugin_test.c (claim_file_hook): Check for parallel .syms
	file to decide whether to claim file.
	(all_symbols_read_hook): Likewise.
	* testsuite/plugin_test_1.sh: Adjust expected output.
	* testsuite/plugin_test_2.sh: Likewise.
	* testsuite/plugin_test_3.sh: Likewise.
	* testsuite/plugin_test_6.sh: Likewise.
	* testsuite/plugin_test_tls.sh: Likewise.
	* testsuite/plugin_test_11.sh: New testcase.
2015-02-03 20:03:42 -08:00
Cary Coutant
8265ef9502 Add extra debugging output for files and descriptors.
gold/
	* descriptors.cc (Descriptors::open): Set artificially-low limit for
	file descriptors when debugging enabled. Add debug output.
	(Descriptors::release): Add debug output.
	(Descriptors::close_some_descriptor): Likewise.
	(Descriptors::close_all): Likewise.
	* fileread.cc (File_read::lock): Likewise.
	(File_read::unlock): Likewise.
2015-02-03 20:03:41 -08:00
Cary Coutant
24dd580891 Fix bug with previous patch for unresolved TLS symbol.
We need to check that the output is executable before assuming that we
can replace the reference with zero.

2015-02-02  Cary Coutant  <ccoutant@google.com>

gold/
	* x86_64.cc (Target_x86_64::Relocate::relocate_tls): Check for
	executable output file.
2015-02-02 11:46:45 -08:00
Han Shen
fa89cc82f5 This patch adds IFUNC support for arm gold backend.
This is a feature required in chromeos arm development work.

Tested:
1) Built passed all-gold on x86_64 machine
2) Tested with basic gold aarch64 ifunc unittests -
   a) global ifunc, statically/non-statically linked
   b) local ifunc, statically/non-statically linked
   c) global/local, other shared library routine mixed,
   statically/non-statically linked
   d) arm/thumb mode ifunc
   e) linking chrome browser passed
2015-01-29 10:15:42 -08:00
Alan Modra
0f81d3f0a7 Correct GOLD PowerPC64 local-dynamic TLS linker optimization
Similar to b86ac8e3

	* powerpc.cc (Target_powerpc::Relocate::relocate): Correct GOT_TLSLD
	and GOT_TLSGD to LE optimization.
2015-01-29 20:34:45 +10:30
Cary Coutant
65d9213705 Allow undefined references to TLS symbols.
When --warn-unresolved-symbols is used, gold tries to create a dynamic relocation
for it, and gives an internal error if the TLS segment has not already been
created. This patch allows the IE-to-LE optimization for an undefined symbol
when building an executable, which suppresses the dynamic relocation, and
relaxes the requirement to have a TLS segment when applying a relocation for
an undefined symbol.

2015-01-28  Cary Coutant  <ccoutant@google.com>

gold/
	* x86_64.cc (Target_x86_64::Scan::global): Allow IE-to-LE optimization
	for undef TLS symbols.
	(Target_x86_64::Relocate::relocate_tls): Likewise.
	(Target_x86_64::Relocate::tls_ie_to_le): Likewise.
2015-01-28 15:39:08 -08:00
Cary Coutant
5485698ae4 2015-01-25 Cary Coutant <ccoutant@google.com>
gold/
	* output.cc (Output_segment::set_section_addresses): Fix calculation
	of size of relro segment.
2015-01-25 17:31:32 -08:00
Alan Modra
b01a4b043a [GOLD] Correct powerpc64 ifunc plt entry test
Found when attempting to build an ELFv2 Linux kernel.  We don't
generally need a plt entry for ELFv2 got relocs, only on ifunc, just
like ppc32.

	* powerpc.cc (Target_powerpc::Scan::local <got relocs>): Correct
	condition for need of ifunc plt entry.
	(Target_powerpc::Scan::global <got relocs>): Likewise.
2015-01-22 15:42:45 +10:30
Cary Coutant
3d0064a95d Fix a bug in resolving HI16/LO16 relocation pairs for MIPS.
2015-01-14  Sasa Stankovic  <Sasa.Stankovic@imgtec.com>

gold/
	* mips.cc (reloc_high): Add r_sym.
	(Mips_relocate_functions::relhi16): Add r_sym parameter. Pass r_sym to
	reloc_high constructor.
	(Mips_relocate_functions::relgot16_local): Likewise.
	(Mips_relocate_functions::rello16): Add r_sym parameter. Use r_sym and
	r_type to decide whether LO16 matches HI16.
	(Target_mips::Relocate::relocate): Pass r_sym to calls to relhi16,
	rello16 and relgot16_local.
2015-01-14 10:30:14 -08:00
Cary Coutant
a5cd8f05ca Don't align start of segment unless alignment is larger than page size.
This fixes an issue where a page-aligned data section, combined with -z relro,
could lead to a gap between text and data segments larger than a page, and
we would fail to overlap the segments in the file.

gold/
	* layout.cc (Layout::set_segment_offsets): Don't align start of segment
	unless alignment is larger than page size.
2015-01-09 15:58:39 -08:00
H.J. Lu
4fc1b9d43c Handle stack split for x32
X32 uses cmp %fs:NN,%esp, lea NN(%rsp),%r10d, lea NN(%rsp),%r11d,
instead of cmp %fs:NN,%rsp, lea NN(%rsp),%r10, lea NN(%rsp),%r11.
This patch handles it.

	PR gold/17729
	* configure.ac (DEFAULT_TARGET_X86_64): Don't set for x32.
	(DEFAULT_TARGET_X32): Set for x32.
	* x86_64.cc (cmp_insn_32): New.
	(lea_r10_insn_32): Likewise.
	(lea_r11_insn_32): Likewise.
	(cmp_insn_64): Likewise.
	(lea_r10_insn_64): Likewise.
	(lea_r11_insn_64): Likewise.
	(Target_x86_64<size>::do_calls_non_split): Handle x32.
	* testsuite/Makefile.am (check_SCRIPTS): Add split_x32.sh.
	(check_DATA): Add split_x32 files.
	(split_x32_[1234n].o): New targets.
	(split_x32_[124]): New targets.
	(split_x32_[1234r].stdout): New targets.
	* testsuite/split_x32.sh: New file.
	* testsuite/split_x32_1.s: Likewise.
	* testsuite/split_x32_2.s: Likewise.
	* testsuite/split_x32_3.s: Likewise.
	* testsuite/split_x32_4.s: Likewise.
	* testsuite/split_x32_n.s: Likewise.
	* configure: Regenerated.
	* testsuite/Makefile.in: Likewise.
2015-01-06 15:38:25 -08:00
H.J. Lu
e749cab89d Handle Initial-Exec to Local-Exec for x32
PR gold/17809
	* x86_64.cc (Target_x86_64<size>::Relocate::tls_ie_to_le): Handle
	x32.
2015-01-06 12:58:54 -08:00
Alan Modra
2f5346cd7c Regenerate Makeile.in file for copyright update 2015-01-02 22:27:27 +10:30
Alan Modra
af759df025 Correct printed year in copyright notices for gold. 2015-01-02 08:51:43 +10:30
Alan Modra
b90efa5b79 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
Alan Modra
f12d1e8a66 ARM: Add support for value 3 of Tag_ABI_VFP_args attribute
Missing from 5c294fee

elfcpp/
	* arm.h: Add enums for Tag_ABI_FP_number_model and Tag_ABI_VFP_args.
gold/
	* arm.cc (Target_arm::do_adjust_elf_header): Provide namespace on
	new enums.
	(Target_arm::merge_object_attributes, ): Likewise.
2014-12-25 22:22:25 +10:30
Terry Guo
5c294fee9a ARM: Add support for value 3 of Tag_ABI_VFP_args attribute
*** bfd/ChangeLog ***

2014-12-25  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* elf32-arm.c (elf32_arm_merge_eabi_attributes): Handle new
	Tag_ABI_VFP_args value and replace hardcoded values by enum
	values.
	(elf32_arm_post_process_headers): Set e_flags in ELF header
	as hard float only when Tag_ABI_VFP_args is 1, using new enum
	value AEABI_VFP_args_vfp to check that.

*** binutils/ChangeLog ***

2014-12-25  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* readelf.c (arm_attr_tag_ABI_VFP_args): Add "compatible".

*** gdb/ChangeLog ***

2014-12-25  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* arm-tdep.c (arm_gdbarch_init): Explicitely handle value 3 of
	Tag_ABI_VFP_args. Also replace hardcoded values by enum values
	in the switch handling the different values of Tag_ABI_VFP_args.

*** gold/ChangeLog ***

2014-12-25  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* arm.cc (Target_arm::do_adjust_elf_header): Set e_flags in ELF
	header as hard float only when Tag_ABI_VFP_args is 1, using new
	enum value AEABI_VFP_args_vfp to check that.
	(Target_arm::merge_object_attributes): Handle new Tag_ABI_VFP_args
	value and replace hardcoded values by enum values.

*** include/elf/ChangeLog ***

2014-12-25  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* arm.h: New AEABI_FP_number_model_* and AEABI_VFP_args_* enum
	values.

*** ld/testsuite/ChangeLog ***

2014-12-25  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* ld-arm/attr-merge-2a.s: Add Tag_ABI_VFP_args.
	* ld-arm/attr-merge-2b.s: Likewise.
	* ld-arm/attr-merge-2.attr: Likewise.
	* ld-arm/attr-merge-4a.s: Add Tag_ABI_FP_number_model and
	Tag_ABI_VFP_args.
	* ld-arm/attr-merge-4b.s: Likewise.
	* ld-arm/attr-merge-4.attr: Likewise.
	* ld-arm/attr-merge-6a.s: Likewise.
	* ld-arm/attr-merge-6b.s: Likewise.
	* ld-arm/attr-merge-6.attr: Add Tag_ABI_FP_number_model.
2014-12-25 09:55:03 +08:00
Cary Coutant
e30880c2ee gold/
* powerpc.cc (Target_powerpc::relocate): Fix overflow check.
2014-12-22 10:13:37 -08:00
H.J. Lu
bd040da1db Change SometimesInlineFunction to "return i * i * 3;"
The debug_msg test has 2 implementations of SometimesInlineFunction:

int SometimesInlineFunction(int i) { return i; }
int SometimesInlineFunction(int i) { return i * i; }

and One Definition Rule (ODR) violation detection expects they will be
compiled into functions of different sizes.  Hower, on x86, GCC 4.7 and
newer compile them into functions of the same size and ODR violation
detection test fails.  This patch changes

int SometimesInlineFunction(int i) { return i; }

to

int SometimesInlineFunction(int i) { return i * i * 3; }

so that it will be compiled into a function of larger size.

	PR gold/14608
	* testsuite/debug_msg.cc (SometimesInlineFunction): Changed
	to "return i * i * 3;".
2014-12-20 08:05:45 -08:00
Cary Coutant
e02a4046e0 Fix internal error in gold when -Map and --compress-debug-sections are used
together.

gold/
	* mapfile.cc (Mapfile::print_input_section): Print uncompressed sizes.
	(Mapfile::print_output_data): Use current_data_size() to avoid
	assert for sections requiring postprocessing; if address is not valid,
	print 0.
	(Mapfile::print_output_section): Use current_data_size(); print note
	that addresses and sizes are before compression.
2014-12-16 14:58:15 -08:00
H.J. Lu
add6016bac Cast current_group_size to unsigned long
* aarch64.cc (AArch64_relocate_functions::maybe_apply_stub):
	Cast current_group_size to unsigned long when reporting error.
2014-12-14 06:59:20 -08:00
Jing Yu
0bf32ea9e6 Give informative error message for stub-group-size
This patch gives current stub-group-size in error message when stub
is too far away.

	* aarch64.cc (Target_aarch64): Add new variable: stub_group_size_.
	(AArch64_relocate_functions::maybe_apply_stub): Add new parameter.
	Update error message.
	(Target_aarch64::do_relax): Use absolute value of option
	stub_group_size. Replace local variable with class member
	stub_group_size_.
2014-12-10 15:39:13 -08:00
Alan Modra
fbad6518c1 ChangeLog typo fix 2014-12-04 22:20:53 +10:30
Alan Modra
cbcb23fa01 PowerPC gold, fix 32-bit branch address arithmetic
Mixing 64-bit and 32-bit types led to the wrong promotions.  Keep
calculation in same type.  Also fix a case where PLTREL25 reloc addend
should be ignored.

	* Powerpc.cc (Target_powerpc::Branch_info::make_stub): Ignore
	addend of PLTREL24 reloc when not generating a plt stub.  Make
	max_branch_offset an "Address".
	(Stub_table::can_read_stub): Make max_branch_offset an "Address".
	(Target_powerpc::Relocate::relocate): Likewise.
2014-12-04 21:17:54 +10:30
Alan Modra
1611bc4afb powerpc gold, work around pr17670
pr17670 is about an assert triggering on a branch to an undefined
weak symbol, the symbol being undefined due to dropping its comdat
group section.  (Well sort of.  The symbol is actually defined in
an .opd section which isn't part of the group, but the code section
the opd entry points at is dropped.)  So don't assert.
Also, don't make long branch stubs to such symbols, and arrange to
have target-reloc.h code warn when applying relocs that use the sym.

	PR 17670
	* symtab.cc (Symbol::set_undefined): Remove assertion.
	* powerpc.cc (Target_powerpc::symval_for_branch): Don't assert
	on symbols defined in discarded sections, instead return false.
	Rearrange params, update all callers.
	(Target_powerpc::Branch_info::make_stub): Don't make stubs for
	branches to syms in discarded sections.
	(Global_symbol_visitor_opd::operator()): Set discarded opd syms
	undefined and flag as discarded.
	(Target_powerpc::Relocate::relocate): Localize variable.
2014-12-04 09:23:59 +10:30
H.J. Lu
4759c34e12 Compile pie_copyrelocs_test.cc with -fno-exceptions -fno-asynchronous-unwind-tables
PR gold/17675
	* testsuite/Makefile.am (pie_copyrelocs_test_CXXFLAGS): New.
	* testsuite/Makefile.in: Regenerated.
2014-12-03 10:59:46 -08:00
Alan Modra
1f98a0748c powerpc gold, fix pr17566
Code stolen from arm.cc.

	PR 17566
	* powerpc.cc (Target_powerpc::Scan::local): Use add_local_section
	when adding dynamic relocations against section symbols.
2014-12-04 01:09:55 +10:30
Dmitriy Ivanov
fb25783533 Add support for -z global.
gold/
	* layout.cc (Layout::finish_dynamic_section): When '-z global'
	is specified set DF_1_GLOBAL in DT_FLAGS_1 flags.
	* options.h (General_options): New -z option (global).
2014-12-01 13:37:38 -08:00
Cary Coutant
d8e603148f Fix extraneous warning about executable stack.
PR gold/17578 notes that gold will print a warning about an executable stack
when the -z execstack option is given, even when there is no --warn_execstack
option. The warning is completely useless and unexpected, since the user
explicitly requested an executable stack, and did not even ask for warnings.

This patch fixes that, and adds an extra warning when --warn_execstack
and -z noexecstack are both given and an input file requires an executable
stack.

gold/
	PR gold/17578
	* layout.cc (Layout::layout_gnu_stack): Don't warn when -z execstack
	is given.
	(Layout::create_executable_stack_info): Warn when -z noexecstack is
	given but some inputs require executable stack.
2014-12-01 13:21:49 -08:00
Cary Coutant
982bbd97c5 Update list of debug sections for --strip-debug-xxx options.
Add .debug_gdb_scripts, .debug_gnu_pubnames, .debug_gnu_pubtypes,
and .debug_str_offsets to lists of sections to strip or keep
when stripping debug info.

gold/
	* layout.cc (gdb_sections): Keep .debug_gdb_scripts and
	.debug_str_offsets; strip .debug_gnu_pubnames and
	.debug_gnu_pubtypes.
	(lines_only_debug_sections): Strip all four new sections.
2014-11-26 14:41:46 -08:00
Han Shen
bb779192ae Fix for gold linking tlsdesc into an executable with -pie.
(Also included in this patch is a minor typo fix in gold/ChangeLog.)

When linking the following tlsdesc access sequence into an executable with -pie,

     adrp    x0, :tlsdesc:tls_gd
     ldr     x1, [x0, #:tlsdesc_lo12:tls_gd]
     add     x0, x0, :tlsdesc_lo12:tls_gd
     .tlsdesccall    tls_gd
     blr	     x1
     mrs	     x1, tpidr_el0
     add	     x0, x1, x0
     ldr	     w0, [x0]

current gold-aarch64 backend does tls-desc-gd-to-ie relaxation, into

       adrp    x0, 1000 <__FRAME_END__+0x720>
       ldr     x1, [x0,#4064]	  ;; <=== the target register should be x0
       nop
       nop
       mrs	x1, tpidr_el0
       add	x0, x1, x0
       ldr	w0, [x0]

This code is wrong. The fix changes ldr target register into x0.
2014-11-26 10:34:46 -08:00
Alan Modra
a3e60ddb0b Retry powerpc gold stub grouping when groups prove too large
An unusually large number of stubs can result in the default section
group size being too large;  sections plus stubs exceed the range of a
branch.  Restarting the relaxation pass with a smaller group size can
sometimes help.

	* powerpc.cc (struct Stub_table_owner): New.
	(Powerpc_relobj): Rename stub_table_ to stub_table_index_, an
	unsigned int vector.  Update all references.
	(powerpc_relobj::set_stub_table): Take an unsigned int param
	rather than a Stub_table.  Update callers.
	(Powerpc_relobj::clear_stub_table): New function.
	(Target_powerpc): Add relax_failed_, relax_fail_count_ and
	stub_group_size_ vars.
	(Target_powerpc::new_stub_table): Delete.
	(max_branch_delta): New function, extracted from..
	(Target_powerpc::Relocate::relocate): ..here..
	(Target_powerpc::Branch_info::make_stub): ..and here.  Return
	status on whether stub created successfully.
	(Stub_control::Stub_control): Add "no_size_errors" param.  Move
	default sizing to..
	(Target_powerpc::do_relax): ..here.  Init stub_group_size_ and
	reduce on relax failure.
	(Target_powerpc::group_sections): Add "no_size_errors" param.
	Use stub_group_size_.  Set up group info in a temp vector,
	before building Stub_table vector.  Account for input sections
	possibly already converted to relaxed sections.
	(Stub_table::init): Delete.  Merge into..
	(Stub_table::Stub_table): ..here.
	(Stub_table::can_reach_stub): New function.
	(Stub_table::add_plt_call_entry): Add "from" parameter and
	return true iff stub could be reached.
	(Stub_table::add_long_branch_entry): Similarly.  Add "r_type"
	param too.
	(Stub_table::clear_stubs): Add "all" param.
2014-11-26 13:29:29 +10:30
Alan Modra
a20605cf85 [GOLD] PowerPC relaxation corner case
It's possible for the section grouping code to decide that the last
section looked at (the first section by address) doesn't fit into a
group.  In one case that section is already a group owner and that is
handled correctly.  In other cases the section should be put into its
own group.  Like this:

	* powerpc.cc (Stub_control::set_output_and_owner): New function.
	(Target_powerpc::group_sections): Use it.
2014-11-26 10:50:33 +10:30
Cary Coutant
43b64debe3 Add file size to ELF symbol labelling start of a binary file.
gold/
	* binary.cc (Binary_to_elf::sized_convert): Add size to _start symbol.
	(Binary_to_elf::write_symbol): Add st_size parameter.
	* binary.h (Binary_to_elf::write_symbol): Add st_size parameter.
2014-11-25 14:33:51 -08:00
Cary Coutant
c924eb67e1 Fix corrupted .eh_frame section with LTO and --gc-sections.
When --gc-sections is turned on during an LTO link, the .eh_frame sections
from deferred files are processed before those from the replacement files.
As a result, the section end-cap from crtendS.o is placed ahead of
the .eh_frame data from the replacement files. This patch fixes the bug
by skipping the layout of the deferred sections during GC pass 2.

gold/
	PR gold/17639
	* object.cc (Sized_relobj_file): Initialize is_deferred_layout_.
	(Sized_relobj_file::do_layout): Handle deferred sections properly
	during GC pass 1. Don't add reloc sections to deferred list twice.
	* object.h (Sized_relobj_file::is_deferred_layout): New function.
	(Sized_relobj_file::is_deferred_layout_): New data member.
2014-11-25 13:56:21 -08:00
H.J. Lu
9d58518888 Check PC-relative offset overflow in PLT entry
PR gold/17619
	* x86_64.cc (Output_data_plt_x86_64_standard<size>::do_fill_plt_entry):
	Check PC-relative offset overflow in PLT entry.
2014-11-21 11:26:56 -08:00
Alan Modra
3ffaac206b PPC gold doesn't check for overflow properly
* powerpc.cc (Target_powerpc::Relocate::relocate): Correct test
	for undefined weaks.
2014-11-21 08:16:22 +10:30
Alan Modra
0cfb071748 PPC gold doesn't check for overflow properly
Corrects overflow test for rel14, addr14, rel24, addr24 branch relocs,
and prints an information message to give a hint as to how a branch
that can't reach a stub might be cured.

bfd/
	* elf64-ppc.c (group_sections): Init stub14_group_size from
	--stub-group-size parameter divided by 1024.
gold/
	* powerpc.cc (Stub_control::Stub_control): Init stub14_group_size_
	from --stub-group-size parameter divided by 1024.
	(Powerpc_relocate_functions::rela, rela_ua): Add fieldsize
	template parameter.  Update all uses.
	(Target_powerpc::Relocate::relocate): Rename has_plt_value to
	has_stub_value.  Set for long branches.  Don't report overflow for
	branch to undefined weak symbols.  Print info message on
	overflowing branch to stub.
2014-11-20 21:37:05 +10:30
Alan Modra
f9dffbf086 Default powerpc64 to --plt-thread-safe for Go
Go is multi-threaded, so use thread-safe plt stubs.  __go_go doesn't
actually start threads, but is a convenient libgo function with a
reasonably unique name that is called by all Go executables.  (Threads
are started by a static function of libgo, runtime_newosproc, called
by a whole lot of global functions, including runtime_starttheworld
and runtime_main.)

bfd/
	* elf64-ppc.c (ppc64_elf_size_stubs): Add __go_go to thread_starters.
gold/
	* powerpc.cc (Target_powerpc::do_relax): Add __go_go to thread_starters.
2014-11-20 08:57:31 +10:30
H.J. Lu
e88ba8d569 Don't make PLT entry for R_X86_64_GOTPLT64
* x86_64.cc (Target_x86_64<size>::Scan::global): Don't make PLT
	entry for R_X86_64_GOTPLT64.
	(Target_x86_64<size>::Relocate::relocate): Update comments for
	R_X86_64_GOTPLT64.
2014-11-14 16:47:15 -08:00
Evgeniy Dushistov
d37ffe2537 Fix race condition when using --threads with linker plugins.
2014-11-06  Evgeniy Dushistov  <dushistov@mail.ru>

gold/
	* plugin.cc: use lock to searialize calls of Plugin_manager::claim_file
	* plugin.h: add lock definition
2014-11-07 16:12:58 -08:00