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1793 Commits

Author SHA1 Message Date
Cary Coutant
39040bb911 Remove const from return type of get_output_view. 
gold/
	* object.h (Object::get_output_view): remove const from return type.
	(Object::do_get_output_view): Likewise.
	(Sized_relobj_file::do_get_output_view): Likewise.
	* reloc.cc (Sized_relobj_file::do_get_output_view): Likewise.
 2015-12-13 14:04:24 -08:00
Cary Coutant
6e0813d359 Pass relocations to Target::do_calls_non_split. 
gold/
	* target.h (Target::calls_non_split): Add prelocs, reloc_count
	parameters.
	(Target::do_calls_non_split): Likewise.
	* target.cc (Target::do_calls_non_split): Likewise.
	* reloc.cc (Sized_relobj_file::split_stack_adjust_reltype): Adjust
	call to Target::calls_non_split.

	* i386.cc (Target_i386::do_calls_non_split): Add prelocs, reloc_count
	parameters.
	* powerpc.cc (Target_powerpc::do_calls_non_split): Likewise.
	* x86_64.cc (Target_x86_64::do_calls_non_split): Likewise.
 2015-12-11 14:23:59 -08:00
Cary Coutant
6b2353a53a Make output views accessible to Target during do_relocate(). 
gold/
	* object.cc (Sized_relobj_file::Sized_relobj_file): Initialize
	output_views_.
	* object.h (Object::get_output_view): New function.
	(Object::do_get_output_view): New function.
	(Sized_relobj_file::do_get_output_view): New function.
	(Sized_relobj_file::output_views_): New data member.
	* reloc.cc: (Sized_relobj_file::do_relocate): Store pointer to
	output views in class object.
	(Sized_relobj_file::do_get_output_view): New function.
 2015-12-11 14:23:58 -08:00
H.J. Lu
bebf4942b0 ld -r doesn't need plugin for slim lto object 
Plugin isn't required on slim lto object for relocatable link.

	PR ld/19317
	* symtab.cc (Symbol_table::add_from_relobj): Don't complain
	plugin needed to handle slim lto object for relocatable link.
 2015-12-10 11:29:03 -08:00
Alan Modra
dcfc7dd477 [GOLD] PowerPC style fix 
* powerpc.cc (Target_powerpc::Relocate::relocate): New constant
	d_offset.  Use throughout.
	(Target_powerpc::relocate_relocs): Likewise.
 2015-12-09 10:36:44 +10:30
Alan Modra
e3a7574e2e [GOLD] Edit PowerPC64 ELFv2 function entry code 
In an fixed position executable, the entry code does not need to be
PIC and can thus lose a dependency on r12.

	* powerpc.cc (Target_powerpc::Relocate::relocate): Edit ELFv2
	entry code.
	(Target_powerpc::relocate_relocs): Edit relocs to suit.
 2015-12-09 10:36:43 +10:30
Alan Modra
91a65d2fe8 [GOLD] Relocate::relocate() params 
Some linker code editing needs to change multiple insns.  In some
cases multiple relocations are involved and it is not sufficient to
make the changes independently as relocations are processed, because
doing so might lead to a partial edit.  So in order to safely edit we
need all the relocations available in relocate().  Also, to emit
edited relocs corresponding to the edited code sequence we need some
way to pass information from relocate() to relocate_relocs(),
particularly if the edit depends on insns.  We can't modify input
relocs in relocate() as they are mmapped PROT_READ, nor it is
particularly clean to write relocs to the output at that stage.  So
add a Relocatable_relocs* field to relinfo to mark edited relocs.

Given that relocate is passed the raw reloc pointer, it makes sense to
remove the rel/rela parameter and r_type too.  However, that means the
mips relocate() needs to know whether SHT_REL or SHT_RELA relocs are
being processed.  So add a rel_type for mips, which also has the
benefit of removing relocate() overloading there.

This patch adds the infrastructure without making use of it.

Note that relinfo->rr will be NULL if not outputting relocations.

	* object.h (struct Relocate_info): Add "rr".
	* reloc.h (Relocatable_relocs::set_strategy): New accessor.
	* reloc.cc (Sized_relobj_file::do_relocate_sections): Init
	relinfo.rr for relocate_section and relocate_relocs.
	* powerpc.cc (relocate): Add rel_type and preloc parameters.
	Delete rela and r_type params, instead recalculate these from
	preloc.
	(relocate_relocs): Delete Relocatable_relocs* param, instead
	use relinfo->rr.
	* aarch64.cc: Likewise.
	* arm.cc: Likewise.
	* i386.cc: Likewise.
	* mips.cc: Likewise.
	* s390.cc: Likewise.
	* sparc.cc: Likewise.
	* target.h: Likewise.
	* tilegx.cc: Likewise.
	* x86_64.cc: Likewise.
	* testsuite/testfile.cc: Likewise.
	* target-reloc.h (relocate_section): Adjust to suit.
	(apply_relocation, relocate_relocs): Likewise.
 2015-12-09 10:36:43 +10:30
Alan Modra
549dba7104 [GOLD] R_PPC64_ENTRY support 
elfcpp/
	* powerpc.h (R_PPC64_ENTRY): Define.
gold/
	* powerpc.cc (add_2_2_12, ld_2_12, lis_2): Define.
	(Target_powerpc::Scan::local, global): Handle R_PPC64_ENTRY.
	(Target_powerpc::Relocate::relocate): Edit code at R_PPC64_ENTRY.
 2015-12-07 13:17:00 +10:30
Vladimir Radosavljevic
7ef8ae7c5f Take addend into account when making GOT entries for local symbols. 
gold/
	* object.cc (Sized_relobj::do_for_all_local_got_entries): Use
	Local_got_entry_key for searching in local_got_offsets_.
	* object.h (class Local_got_entry_key): New class.
	(Relobj::local_has_got_offset): New overloaded method.
	(Relobj::local_got_offset): Likewise.
	(Relobj::set_local_got_offset): Likewise.
	(Relobj::do_local_has_got_offset): Add addend argument.
	(Relobj::do_local_got_offset): Likewise.
	(Relobj::do_set_local_got_offset): Likewise.
	(Sized_relobj::do_local_has_got_offset): Add addend argument, and use
	Local_got_entry_key for searching through local_got_offsets_.
	(Sized_relobj::do_local_got_offset): Likewise.
	(Sized_relobj::do_set_local_got_offset): Likewise.
	(Sized_relobj::Local_got_offsets): Change type of the key from
	unsigned int to Local_got_entry_key, and add hash and equal_to.
	* output.cc (Got_entry::write): Take addend into account for
	calculating value of the local symbol for GOT.
	(Output_data_got::add_local): New definition of overloaded method.
	(Output_data_got::add_local_with_rel): Likewise.
	(Output_data_got::add_local_pair_with_rel): Likewise.
	* output.h (Output_data_got::add_local): New declaration of overloaded
	method.
 2015-12-03 15:29:17 -08:00
Cary Coutant
74b03b9133 Adjust local symbol value in relocatable link to be relative to section. 
gold/
	PR gold/19291
	* object.cc (Sized_relobj_file::write_local_symbols): If relocatable,
	subtract section address from symbol value.
 2015-11-25 08:50:41 -08:00
Alan Modra
751e4d66b4 [GOLD] Align PowerPC64 GOT 
As done in a27e685f for bfd ld.

	* powerpc.cc (Output_data_got_powerpc::Output_data_got_powerpc): Align
	to 256 byte boundary.
 2015-11-25 15:06:12 +10:30
Alan Modra
32d849b35d [GOLD] PowerPC TOC16 and GOT16 relocs are relative 
* powerpc.cc (Target_powerpc::Scan::get_reference_flags): Correct
	GOT16 and TOC16 relocs to RELATIVE_REF.
 2015-11-19 17:01:04 +10:30
Cary Coutant
db1ff0288b Fix problem where bss symbols for copy relocations are marked local. 
gold/
	PR gold/19244
	PR gold/18548
	* symtab.cc (Symbol_table::do_define_in_output_data): Check for forced
	local symbols only for predefined symbols.
 2015-11-14 11:04:01 -08:00
Peter Bergner
a680de9a98 Add assembler, disassembler and linker support for power9. 
include/opcode/
	* ppc.h (PPC_OPCODE_POWER9): New define.
	(PPC_OPCODE_VSX3): Likewise.

opcodes/
	* ppc-dis.c (ppc_opts): Add "power9" and "pwr9" entries.
	Add PPC_OPCODE_VSX3 to the vsx entry.
	(powerpc_init_dialect): Set default dialect to power9.
        * ppc-opc.c (insert_dcmxs, extract_dcmxs, insert_dxd, extract_dxd,
        insert_dxdn, extract_dxdn, insert_l0, extract_l0, insert_l1,
        extract_l1 insert_xtq6, extract_xtq6): New static functions.
        (insert_esync): Test for illegal L operand value.
	(DCMX, DCMXS, DXD, NDXD, L0, L1, RC, FC, UIM6, X_R, RIC, PRS, XSQ6,
	XTQ6, LRAND, IMM8, DQX, DQX_MASK, DX, DX_MASK, VXVAPS_MASK, VXVA,XVA,
	XX2VA, XVARC, XBF_MASK, XX2UIM4_MASK, XX2BFD_MASK, XX2DCMXS_MASK,
	XVA_MASK, XRLA_MASK, XBFRARB_MASK, XLRAND_MASK, POWER9, PPCVEC3,
	PPCVSX3): New defines.
	(powerpc_opcodes) <ps_cmpu0, ps_cmpo0, ps_cmpu1, ps_cmpo1, fcmpu,
	fcmpo, ftdiv, ftsqrt>: Use XBF_MASK.
	<mcrxr>: Use XBFRARB_MASK.
	<addpcis, bcdcfn., bcdcfsq., bcdcfz., bcdcpsgn., bcdctn., bcdctsq.,
	bcdctz., bcds., bcdsetsgn., bcdsr., bcdtrunc., bcdus., bcdutrunc.,
	cmpeqb, cmprb, cnttzd, cnttzd., cnttzw, cnttzw., copy, copy_first,
	cp_abort, darn, dtstsfi, dtstsfiq, extswsli, extswsli., ldat, ldmx,
	lwat, lxsd, lxsibzx, lxsihzx, lxssp, lxv, lxvb16x, lxvh8x, lxvl, lxvll,
	lxvwsx, lxvx, maddhd, maddhdu, maddld, mcrxrx, mfvsrld, modsd, modsw,
	modud, moduw, msgsync, mtvsrdd, mtvsrws, paste, paste., paste_last,
	rmieg, setb, slbieg, slbsync, stdat, stop, stwat, stxsd, stxsibx,
	stxsihx, stxssp, stxv, stxvb16x, stxvh8x, stxvl, stxvll, stxvx,
	subpcis, urfid, vbpermd, vclzlsbb, vcmpneb, vcmpneb., vcmpneh,
	vcmpneh., vcmpnew, vcmpnew., vcmpnezb, vcmpnezb., vcmpnezh, vcmpnezh.,
	vcmpnezw, vcmpnezw., vctzb, vctzd, vctzh, vctzlsbb, vctzw, vextractd,
	vextractub, vextractuh, vextractuw, vextsb2d, vextsb2w, vextsh2d,
	vextsh2w, vextsw2d, vextublx, vextubrx, vextuhlx, vextuhrx, vextuwlx,
	vextuwrx, vinsertb, vinsertd, vinserth, vinsertw, vmul10cuq,
	vmul10ecuq, vmul10euq, vmul10uq, vnegd, vnegw, vpermr, vprtybd,
	vprtybq, vprtybw, vrldmi, vrldnm, vrlwmi, vrlwnm, vslv, vsrv, wait,
	xsabsqp, xsaddqp, xsaddqpo, xscmpeqdp, xscmpexpdp, xscmpexpqp,
	xscmpgedp, xscmpgtdp, xscmpnedp, xscmpoqp, xscmpuqp, xscpsgnqp,
	xscvdphp, xscvdpqp, xscvhpdp, xscvqpdp, xscvqpdpo, xscvqpsdz,
	xscvqpswz, xscvqpudz, xscvqpuwz, xscvsdqp, xscvudqp, xsdivqp,
	xsdivqpo, xsiexpdp, xsiexpqp, xsmaddqp, xsmaddqpo, xsmaxcdp,
	xsmaxjdp, xsmincdp, xsminjdp, xsmsubqp, xsmsubqpo, xsmulqp, xsmulqpo,
	xsnabsqp, xsnegqp, xsnmaddqp, xsnmaddqpo, xsnmsubqp, xsnmsubqpo,
	xsrqpi, xsrqpix, xsrqpxp, xssqrtqp, xssqrtqpo, xssubqp, xssubqpo,
	xststdcdp, xststdcqp, xststdcsp, xsxexpdp, xsxexpqp, xsxsigdp,
	xsxsigqp, xvcmpnedp, xvcmpnedp., xvcmpnesp, xvcmpnesp., xvcvhpsp,
	xvcvsphp, xviexpdp, xviexpsp, xvtstdcdp, xvtstdcsp, xvxexpdp,
	xvxexpsp, xvxsigdp, xvxsigsp, xxbrd, xxbrh, xxbrq, xxbrw, xxextractuw,
	xxinsertw, xxperm, xxpermr, xxspltib>: New instructions.
	<doze, nap, sleep, rvwinkle, waitasec, lxvx, stxvx>: Disable on POWER9.
	<tlbiel, tlbie, sync, slbmfev, slbmfee>: Add additional operands.

include/elf/
	* ppc.h (R_PPC_REL16DX_HA): New reloction.
	* ppc64.h (R_PPC64_REL16DX_HA): Likewise.

bfd/
	* elf32-ppc.c (ppc_elf_howto_raw): Add R_PPC_REL16DX_HA.
	(ppc_elf_reloc_type_lookup): Handle R_PPC_REL16DX_HA.
	(ppc_elf_addr16_ha_reloc): Likewise.
	(ppc_elf_check_relocs): Likewise.
	(ppc_elf_relocate_section): Likewise.
	(is_insn_dq_form): Handle lxv and stxv instructions.
	* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_REL16DX_HA.
	(ppc64_elf_reloc_type_lookup): Handle R_PPC64_REL16DX_HA.
	(ppc64_elf_ha_reloc): Likewise.
	(ppc64_elf_check_relocs): Likewise.
	(ppc64_elf_relocate_section): Likewise.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Likewise.
	* reloc.c (BFD_RELOC_PPC_REL16DX_HA): New.

elfcpp/
	* powerpc.h (R_POWERPC_REL16DX_HA): Define.

gas/
	* doc/as.texinfo (Target PowerPC): Document -mpower9 and -mpwr9.
	* doc/c-ppc.texi (PowerPC-Opts):  Likewise.
	* config/tc-ppc.c (md_show_usage): Likewise.
	(md_assemble): Handle BFD_RELOC_PPC_REL16DX_HA.
	(md_apply_fix): Likewise.
	(ppc_handle_align): Handle power9's group ending nop.

gas/testsuite/
	* gas/ppc/altivec3.s: New test.
	* gas/ppc/altivec3.d: Likewise.
	* gas/ppc/vsx3.s: Likewise.
	* gas/ppc/vsx3.d: Likewise.
	* gas/ppc/power9.s: Likewise.
	* gas/ppc/power9.d: Likewise.
	* gas/ppc/ppc.exp: Run them.
	* gas/ppc/power8.s <lxvx, lxvd2x, stxvx, stxvd2x>: Add new tests.
	* gas/ppc/power8.d: Likewise.
	* gas/ppc/vsx.s: <lxvx, stxvx>: Rename invalid mnemonics ...
	<lxvd2x, stxvd2x>: ...to this.
	* gas/ppc/vsx.d: Likewise.

gold/
	* gold/powerpc.cc (Powerpc_relocate_functions::addr16_dq): New function.
	(Powerpc_relocate_functions::addr16dx_ha): Likewise.
	(Target_powerpc::Scan::local): Handle R_POWERPC_REL16DX_HA.
	(Target_powerpc::Scan::global): Likewise.
	(Target_powerpc::Relocate::relocate): Likewise.

ld/testsuite/
	* ld-powerpc/addpcis.d: New test.
	* ld-powerpc/addpcis.s: New test.
	* ld-powerpc/powerpc.exp: Run it.
 2015-11-11 19:52:52 -06:00
Vladimir Radosavljevic
cc203475bd Recognize .pdr debug sections. 
gold/
	* layout.h (Layout::is_debug_info_section): Recognize .pdr debug
	sections.
 2015-11-09 10:46:43 -08:00
Cary Coutant
859d79870d Remove unnecessary target dependencies on relocation format. 
2015-11-09  Cary Coutant  <ccoutant@gmail.com>
	    Vladimir Radosavljevic <Vladimir.Radosavljevic@imgtec.com>

gold/
	* copy-relocs.h (Copy_relocs::copy_reloc): Replace reloc parameter
	with type, offset, addend.
	(Copy_relocs::save): Likewise.
	* copy-relocs.cc (Copy_relocs::copy_reloc): Likewise.
	(Copy_relocs::save): Likewise.
	* aarch64.cc (Target_aarch64::copy_reloc): Pass r_type, r_offset,
	and r_addend to Copy_relocs::copy_reloc.
	* arm.cc (Target_arm::copy_reloc): Likewise.
	* i386.cc (Target_i386::copy_reloc): Likewise.
	* mips.cc (Target_mips::copy_reloc): Likewise.
	* powerpc.cc (Target_powerpc::copy_reloc): Likewise.
	* s390.cc (Target_s390::copy_reloc): Likewise.
	* sparc.cc (Target_sparc::copy_reloc): Likewise.
	* tilegx.cc (Target_tilegx::copy_reloc): Likewise.
	* x86_64.cc (Target_x86_64::copy_reloc): Likewise.
 2015-11-09 10:33:37 -08:00
Cary Coutant
96f9814df2 Revert patch for PR 19119, which led to PR 19172 and 19197. 
Gold does not support all the emulations that Gnu ld does, and supports
only one spelling per target. The -m option is used only in the rare case
where there are no ELF input files, and we produce an empty output file.
In those cases, users are expected to supply a -m option naming one of
the supported emulations. In the many cases where a build script provides
an unnecessary -m option naming an emulation that gold does not support,
we will simply ignore the option, as we did before the reverted patch.

gold/
	PR gold/19119
	PR gold/19172
	PR gold/19197
	Revert commit 6457197210:

	2015-10-16  H.J. Lu  <hongjiu.lu@intel.com>

		* options.h (General_options): Remove "obsolete" from -m.
		* parameters.cc (set_parameters_target): Check if input target
		is compatible with output emulation set by "-m emulation".
 2015-11-05 12:59:19 -08:00
Cary Coutant
0eccf19f96 Add aarch64-specific --no-apply-dynamic-relocs option. 
With --no-apply-dynamic-relocs on aarch64 targets, gold will not apply
link-time values for absolute relocations that become dynamic relocations.
This provides a workaround for broken Android dynamic linkers that use
the link-time value as an extra addend to the relocation.

gold/
	PR gold/19163
	* aarch64.cc (Target_aarch64::Relocate::relocate): Don't apply
	certain relocations if --no-apply-dynamic-relocs is set.
	* options.h (--apply-dynamic-relocs): New aarch64-specific option.
 2015-11-05 12:24:14 -08:00
Alan Modra
c1e7d6a827 [GOLD] Regenerate POTFILES.in to add s390.cc 
* po/POTFILES.in: Regenerate.
 2015-11-03 22:51:30 +10:30
Nick Clifton
26f187cd16 Updated (simplified) Chinese translations for ld, bfd, binutils and gold. 
* po/zh_CN.po: Updated (simplified) Chinese translation.
 2015-10-30 12:50:27 +00:00
H.J. Lu
41e83f2b16 Make GOT entry size target-dependent 
The GOT entry size is target-dependent.  This patch adds a got_entry_size
function to Sized_target class so that a target can provide a value
different from default.

	PR gold/19184
	* incremental.cc (Got_plt_view_info): Add got_entry_size.
	(Local_got_offset_visitor::visit): Replace got_entry_size_
	with info_.got_entry_size.
	(Local_got_offset_visitor::got_entry_size_): Removed.
	(Global_got_offset_visitor::visit): Replace got_entry_size_
	with info_.got_entry_size.
	(Global_got_offset_visitor::got_entry_size_): Removed.
	(Output_section_incremental_inputs::write_got_plt): Initialize
	view_info.got_entry_size.
	* target.h (Sized_target::got_entry_size): New virtual function.
	* x86_64.cc (Target_x86_64::got_entry_size): New function.
 2015-10-29 09:26:41 -07:00
Marcin Kościelnicki
238830c697 Add __attribute__((__aligned__(1))) to unaligned symbols from scripts (for s390). 
gold/
	* testsuite/binary_test.cc: Add __attribute__((aligned(1))).
	* testsuite/script_test_12a.c: Likewise.
	* testsuite/script_test_1a.cc: Likewise.
	* testsuite/script_test_2.cc: Likewise.
 2015-10-28 16:49:13 -07:00
Marcin Kościelnicki
bd890911da Make debug_msg.sh more open-minded about line numbers (needed for s390). 
gold/
	* testsuite/debug_msg.sh: Accept more fuzz in line numbers.
 2015-10-28 16:48:46 -07:00
Marcin Kościelnicki
a817ff49c3 Fix empty string alignment in .rodata.str* 
gold/
	PR gold/18959
	* stringpool.cc (Stringpool_template::new_key_offset): Align all
	strings, even zero-length.
	(Stringpool_template::set_string_offsets):
 2015-10-28 16:48:16 -07:00
Marcin Kościelnicki
e79a4bad70 Add s390 backend. 
elfcpp/
	* s390.h: New file.

gold/
	* s390.cc: New file.
	* Makefile.am (TARGETSOURCES): Add s390.cc.
	(ALL_TARGETOBJS): Add s390.o.
	* Makefile.in: Regenerate.
	* configure.ac: Add s390 support.
	* configure: Regenerate.
	* configure.tgt: Add s390-*-* and s390x-*-*.
	* testsuite/icf_safe_test.sh (arch_specific_safe_fold): Add s390
	support.
 2015-10-28 16:47:27 -07:00
Marcin Kościelnicki
6f97897dbe Add 64-bit archive support. 
gold/
	* archive.cc (Archive::sym64name): New const.
	(Archive::setup): Add support for SYM64 armap.
	(Archive::read_armap): Likewise.
	(Archive::interpret_header): Likewise.
	(Archive::const_iterator::read_next_header): Likewise.
	* archive.h (Archive::sym64name): New const.
	(Archive::read_armap): Add mapsize template parameter.
 2015-10-28 16:46:07 -07:00
Marcin Kościelnicki
8d9743bd43 Support 64-bit entry size in SHT_HASH (for s390). 
gold/
	* dynobj.cc (Dynobj::create_elf_hash_table): Create hash table with
	target-specific entry size.
	(Dynobj::sized_create_elf_hash_table): Add size template parameter.
	* dynobj.h (Dynobj::sized_create_elf_hash_table): Likewise.
	* layout.cc (Layout::create_dynamic_symtab): Set entsize to
	hash_entry_size.
	* target.h (Target::hash_entry_size): New method.
	(Target::Target_info::hash_entry_size): New data member.

	* aarch64.cc (Target_aarch64::aarch64_info): Add hash_entry_size.
	* arm.cc (Target_arm::arm_info): Likewise.
	(Target_arm_nacl::arm_nacl_info): Likewise.
	* i386.cc (Target_i386::i386_info): Likewise.
	(Target_i386_nacl::i386_nacl_info): Likewise.
	(Target_iamcu::iamcu_info): Likewise.
	* mips.cc (Target_mips::mips_info): Likewise.
	(Target_mips_nacl::mips_nacl_info): Likewise.
	* powerpc.cc (Target_powerpc::powerpc_info): Likewise.
	* sparc.cc (Target_sparc::sparc_info): Likewise.
	* tilegx.cc (Target_tilegx::tilegx_info): Likewise.
	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
	(Target_x86_64_nacl::x86_64_nacl_info): Likewise.
	* testsuite/testfile.cc (Target_test::test_target_info): Likewise.
 2015-10-28 16:45:37 -07:00
H.J. Lu
3043c1aba1 Check R_386_GOT32/R_386_GOT32X without base register 
The R_386_GOT32 and R_386_GOT32X relocations may be used without base
register:

	movl	bar@GOT, %eax

Its calculation is G + A, instead of G + A - GOT, and it can only used
to generate non-PIC executable.  Include the .got.plt section address
for R_386_GOT32 and R_386_GOT32X relocations without base register.
Don't allow R_386_GOT32 and R_386_GOT32X relocations without base
register when making a PIC output.

	PR gold/19177
	* i386.cc (Target_i386::Relocate::relocate): Check R_386_GOT32
	and R_386_GOT32X relocations without base register.
 2015-10-28 09:15:40 -07:00
Han Shen
4d2f5d5824 Patch for PR gold/19042 - unsupported reloc 311/312. 
gold/

	* aarch64.cc (Target_aarch64::Scan::local): Add support for
	reloc 311/312.
 2015-10-27 15:22:41 -07:00
H.J. Lu
2891b49104 Gold: Don't fail on R_X86_64_[REX_]GOTPCRELX relocations 
This patch updates gold to treat the R_X86_64_GOTPCRELX and
R_X86_64_REX_GOTPCRELX relocations proposed in

https://groups.google.com/forum/#!topic/x86-64-abi/n9AWHogmVY0

the same as R_X86_64_GOTPCREL.  FIXME: Gold should perform the
transformations as suggested.

elfcpp/

	* x86_64.h (R_X86_64_GOTPCRELX): New.
	(R_X86_64_REX_GOTPCRELX): Likewise.

gold/

	* x86_64.cc (Target_x86_64<size>::Scan::get_reference_flags):
	Treat R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX the same
	as R_X86_64_GOTPCREL.
	(Target_x86_64<size>::Scan::local): Likewise.
	(Target_x86_64<size>::Scan::possible_function_pointer_reloc):
	Likewise.
	(Target_x86_64<size>::Scan::global): Likewise.
	(Target_x86_64<size>::Relocate::relocate): Likewise.
	(Target_x86_64<size>::Relocatable_size_for_reloc::get_size_for_reloc):
	Likewise.
 2015-10-22 04:56:57 -07:00
H.J. Lu
493d4b48de Gold: Don't fail on R_386_GOT32X relocation 
This patch updates gold to treat the R_386_GOT32X relocation proposed in

https://groups.google.com/forum/#!topic/ia32-abi/GbJJskkid4I

the same as R_386_GOT32.  FIXME: Gold should perform the transformations
as suggested.

elfcpp/

	* i386.h (R_386_GOT32X): New.

gold/

	* i386.cc (Target_i386::Scan::get_reference_flags(): Treat
	R_386_GOT32X the same as R_386_GOT32.
	(Target_i386::Scan::local): Likewise.
	(Target_i386::Scan::possible_function_pointer_reloc): Likewise.
	(Target_i386::Scan::global): Likewise.
	(Target_i386::Relocate::relocate): Likewise.
	(Target_i386::Relocatable_size_for_reloc::get_size_for_reloc):
	Likewise.
 2015-10-22 04:56:49 -07:00
H.J. Lu
0fd153457c Feed right input object to x86_64_mov_to_lea1[12] 
x86_64_mov_to_lea1.o is a 64-bit x86-64 object and x86_64_mov_to_lea2.o
is a 32-bit x86-64 object.  x86_64_mov_to_lea11 should use
x86_64_mov_to_lea2.o and x86_64_mov_to_lea12 should use
x86_64_mov_to_lea1.o.

	* testsuite/Makefile.am (x86_64_mov_to_lea11): Replace
	x86_64_mov_to_lea1.o with x86_64_mov_to_lea2.o.
	(x86_64_mov_to_lea12): Replace x86_64_mov_to_lea2.o with
	x86_64_mov_to_lea1.o.
	* testsuite/Makefile.in: Regenerated.
 2015-10-20 10:46:47 -07:00
H.J. Lu
6457197210 Don't ignore "-m emulation" command line option 
Gold shouldn't ignore "-m emulation" command line option, which may
lead to incorrect output.

	PR gold/19119
	* options.h (General_options): Remove "obsolete" from -m.
	* parameters.cc (set_parameters_target): Check if input target
	is compatible with output emulation set by "-m emulation".
 2015-10-16 08:05:09 -07:00
H.J. Lu
01f573ad8a Add EM_IAMCU support to gold 
elfcpp/

	PR gold/19118
	* elfcpp.h (EM): Add EM_IAMCU.

gold/

	PR gold/19118
	* i386.cc (Target_iamcu): New class.
	(Target_selector_iamcu): Likewise.
	(Target_iamcu::iamcu_info): New variable.
	(target_selector_iamcu): Likewise.
 2015-10-13 09:02:41 -07:00
Andreas Schwab
3b0357dada gold: fix ABI pagesize for aarch64 
* aarch64.cc (aarch64_info): Set abi_pagesize to 64K.
 2015-10-07 10:57:37 +02:00
Cary Coutant
9eacb935ac Fix bug when applying R_SPARC_GOTDATA_OP* relocations to local symbols. 
When applying a GOTDATA_OP* relocation to a local symbol, the addend
is being applied after getting the value of the symbol. When the
relocation refers to a merge section, however, the addend must be
provided when computing the symbol value, since the contents of
the section may have been rearranged.

gold/
	PR gold/18855
	* sparc.cc (Sparc_relocate_functions::gdop_hix22): Remove addend
	parameter.
	(Sparc_relocate_functions::gdop_lox10): Likewise.
	(Target_sparc::Relocate::relocate): Use addend when computing
	symbol value for R_SPARC_GOTDATA_OP*.
 2015-10-06 14:44:10 -07:00
Cary Coutant
3d4fde6974 Fix internal error caused by IFUNC patch. 
The previous commit to fix PR gold/18886 converted STT_IFUNC
to STT_FUNC when resolving to a symbol defined in a shared library.
This leads to an internal error if the shared library symbol is
seen first, as we do not convert the symbol at all.

We need to override the STT_IFUNC in add_from_dynobj() instead of
in override_base().

gold/
	PR gold/18930
	PR gold/18886
	* resolve.cc (Symbol::override_base): Don't convert IFUNC symbols here.
	* symtab.cc (Symbol_table::add_from_dynobj): Convert them here instead.
 2015-09-07 09:44:11 -07:00
H.J. Lu
358de98820 Turn IFUNC symbols from shared libraries into normal FUNC symbols 
Turn IFUNC symbols from shared libraries into normal FUNC symbols when
we are resolving symbol references, instead of when we are writing out
the symbol table.

	PR gold/18886
	* resolve.cc (Symbol::override_base): Turn IFUNC symbols from
	shared libraries into normal FUNC symbols.
	* symtab.cc (Symbol_table::sized_write_symbol): Assert IFUNC
	symbols aren't from shared libraries.
 2015-09-02 04:17:43 -07:00
Alan Modra
d49044c753 [GOLD] ppc64 out-of-line register save/restore functions 
Gold version of a4b6fadd.  Don't emit long branch or plt branch stubs
to save/restore functions.  Copy them instead.

	PR 18878
	* powerpc.cc (Target_powerpc): Add savres_section_ and accessor.
	(Target_powerpc::Branch_info::make_stub): Determine whether long
	branch stub is for save/restore function.
	(Branch_stub_ent): Add save_res_, and extra parm to constructor.
	(Stub_table): Add need_save_res_.
	(Stub_table:clear_stubs): Clear need_save_res_.
	(Stub_table:set_address_and_size): Add save/restore section size.
	(Stub_table::add_long_branch_entry): Add save_res param.  Set
	need_save_res_, but don't add space for save/restore stubs.
	(Stub_table::find_long_branch_entry): Return offset to local copy
	of save/restore func.
	(Stub_table::do_write): Don't output save/restore stubs.  Instead
	copy the save/restore functions.
	(Output_data_save_res:contents): New accessor.
	(Target_powerpc::define_save_restore_funcs): Set savres_section_.
 2015-09-02 16:07:02 +09:30
Cary Coutant
7c61d651fd Fix problem where script specified both address and region for a section. 
If a script specifies both address and region for an output section
declaration, gold ignores the region specification. This can lead to
bogus "moves backward" errors. This patch fixes gold so that if a
section specifies both address and region, it will place the section
at the specified address in the region, and update the location counter
within the region.

gold/
	PR gold/18847
	* script-sections.cc (Memory_region::set_address): New method.
	(Script_sections::find_memory_region): Add explicit_only parameter.
	(Output_section_definition::set_section_addresses): Handle case where
	script specifies both address and vma region.
	* script-sections.h (Script_sections::find_memory_region): Add
	explicit_only parameter.
 2015-08-26 00:03:04 -07:00
Cary Coutant
4bfacfd359 Fix --no-as-needed when shared library is listed twice on the command line. 
When a shared library is listed twice on the command line, the linker
ignores the second mention. If the first mention is in the scope of
an --as-needed option, and the second one is under the scope of a
--no-as-needed option, the --no-as-needed should take effect, but
doesn't.  This patch keeps track of the objects we've already seen,
and updates the --as-needed flag so that if a shared object is ever
seen with --no-as-needed, it will be marked as such.

gold/
	PR gold/18859
	* object.cc (Input_objects::add_object): Store objects in a map,
	indexed by soname; update as-needed flag when necessary.
	* object.h (Object::clear_as_needed): New method.
	(Input_objects::so_names_): Change from set to map.
 2015-08-25 18:39:20 -07:00
Cary Coutant
1757d35c8a Fix internal error in gold when script uses section address in assignment. 
When processing assignment expressions in a linker script, gold processes
absolute assignments early, but when one of those assignments involves the
address of a section that has not yet been finalized, we get an internal
error in address. This patch fixes the problem by gracefully returning
from expression evaluation even if the address is not yet valid, and
deferring the assignment in such a case.

gold/
	PR gold/14746
	* expression.cc (Expression::Expression_eval_info): Add
	is_valid_pointer field.
	(Expression::eval_maybe_dot): Add is_valid_pointer parameter.
	Adjust all callers.
	(Addr_expression::value_from_output_section): Check whether address
	is valid.
	* script.cc (Symbol_assignment::set_if_absolute): Defer assignment
	if evaluation failed due to address that is not yet valid.
	* script.h: (Expression::eval_maybe_dot): Add is_valid_pointer
	parameter.
 2015-08-25 18:11:19 -07:00
Cary Coutant
3ac0a36c29 Fix regression introduced by fix for PR 18703. 
When a user object overrides a versioned definition in a shared object,
it's possible to trigger an internal error because the versioned
definition we saw didn't override the unversioned definition. This
was introduced by the fix for PR 18703. This patch fixes the problem
by reordering the tests so that we do not check ret->is_default()
until we're confident that the symbol is in fact versioned.

gold/
	PR gold/18866
	PR gold/18703
	* symtab.cc (Symbol_table): Reorder conditions to avoid internal error.
 2015-08-25 17:53:53 -07:00
Alan Modra
9215b98bb2 gold --emit-relocs 
A symbol value in an ELF final linked binary is absolute, in contrast
to a relocatable object file where the value is section relative.  For
--emit-relocs it is therefore incorrect to use the value of a section
symbol as the addend when adjusting relocs against input section
symbols to output section symbols.

	PR gold/18846
	* target-reloc.h (relocate_relocs <RELOC_ADJUST_FOR_SECTION_RELA>):
	Subtract os->address() from addend.
	* powerpc.cc (relocate_relocs): Likewise.
 2015-08-20 12:02:45 +09:30
Cary Coutant
b45e00b3ed Fix symbol versioning problems in PR 18703. 
If a symbol is defined with ".symver foo,foo@VER", the assembler
creates two symbols in the object: one unversioned, and one with
the (non-default) version "VER". If foo is listed in a version
script, gold would then make the first of those symbols the
default version, and would ignore the second symbol as a
duplicate, without making it a non-default version. While this is
arguably reasonable behavior, it doesn't match Gnu ld behavior,
so this patch fixes that by allowing the second definition to
override the first by resetting the "default version" indication.

Several test cases from the Gnu ld testsuite also exposed another
related problem, where a symbol defined with ".symver foo,foo@",
placed into a shared library, is not handled properly by gold.
This patch also fixes that case, binding the symbol to the base
version.

gold/
	PR gold/18703
	* dynobj.cc (Versions::record_version): Handle symbol defined with
	base version.
	(Versions::symbol_section_contents): Likewise.
	* symtab.h (Symbol::set_is_not_default): New class method.
	(Symbol_table::resolve): Add is_default_version parameter.
	(Symbol_table::should_override): Likewise.
	* resolve.cc (Symbol_table::resolve): Add is_default_version parameter,
	and pass to should_override. Adjust all callers and explicit
	instantiations.
	(Symbol_table::should_override): Add is_default_value parameter;
	allow default version in a dynamic object to override existing
	definition from same object.
	* symtab.cc (Symbol_table::add_from_object): Handle case where same
	symbol is defined as unversioned and non-default version in the same
	object.
	* testsuite/Makefile.am (ver_test_13): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/ver_test_4.cc: Add test for symbol with base version.
	* testsuite/ver_test_4.sh: Likewise.
	* testsuite/ver_test_13.c: New source file.
	* testsuite/ver_test_13.script: New version script.
	* testsuite/ver_test_13.sh: New test case.
 2015-08-18 19:24:41 -07:00
Simon Dardis
40fc1451c6 [MIPS] Map 'move' to 'or'. 
The MIPS assembly idiom 'move' now maps to the 'or' machine instruction. This
change affects microMIPS, MIPS32, MIPS64.

2015-08-12  Simon Dardis  <simon.dardis@imgtec.com>

opcodes/

	* micromips-opc.c (micromips_opcodes): Re-order table so that move
	based on 'or' is first.
	* mips-opc.c (mips_builtin_opcodes): Ditto.

bfd/

	* elfxx-mips.c (STUB_MOVE): Change to use 'or' only.
	(mips_o32_exec_plt0_entry, mips_n32_exec_plt0_entry,
	mips_n64_exec_plt0_entry, micromips_insn32_o32_exec_plt0_entry):
	Update to use 'or' instead of 'addu/daddu'.
	(_bfd_mips_elf_finish_dynamic_symbol): Update usage of STUB_MOVE.
	(move_insns_32): Reorder table.

gas/

	* config/tc-mips.c (move_register): Change to use 'or' only.
	(s_cpload, s_cpsetup, s_cprestore, s_cpreturn): Update to
	use or for move.

gas/testsuite/

	* gas/mips/elf-rel23.d: Update test.
	* gas/mips/elf-rel23.d: Ditto.
	* gas/mips/elf-rel23a.d: Ditto.
	* gas/mips/elf-rel23b.d: Ditto.
	* gas/mips/elf_e_flags1.d: Ditto.
	* gas/mips/elf_e_flags2.d: Ditto.
	* gas/mips/elf_e_flags3.d: Ditto.
	* gas/mips/elf_e_flags4.d: Ditto.
	* gas/mips/loc-swap-dis.d: Ditto.
	* gas/mips/micromips-insn32.d: Ditto.
	* gas/mips/micromips-noinsn32.d: Ditto.
	* gas/mips/micromips-trap.d: Ditto.
	* gas/mips/micromips.d: Ditto.
	* gas/mips/mips-abi32-pic.d: Ditto.
	* gas/mips/mips-abi32.d: Ditto.
	* gas/mips/mips-gp32-fp32-pic.d: Ditto.
	* gas/mips/mips-gp32-fp32.d: Ditto.
	* gas/mips/mips-gp32-fp64-pic.d: Ditto.
	* gas/mips/mips-gp32-fp64.d: Ditto.
	* gas/mips/mips-gp64-fp32-pic.d: Ditto.
	* gas/mips/mips-gp64-fp32.d: Ditto.
	* gas/mips/mips-gp64-fp64-pic.d: Ditto.
	* gas/mips/mips-gp64-fp64.d: Ditto.
	* gas/mips/mipsr6@loc-swap-dis.d: Ditto.
	* gas/mips/tls-o32.d: Ditto.
	* gas/mips/uld2-eb.d: Ditto.
	* gas/mips/uld2-el.d: Ditto.
	* gas/mips/ulw2-eb-ilocks.d: Ditto.
	* gas/mips/ulw2-eb.d: Ditto.
	* gas/mips/ulw2-el-ilocks.d: Ditto.
	* gas/mips/ulw2-el.d: Ditto.
	* gas/mips/move.d: New test.
	* gas/mips/move.s: Ditto.
	* gas/mips/micromips32-move.d: Ditto.
	* gas/mips/micromips32-move.s: Ditto.
	* gas/mips/mips.exp: Run the new tests.

gold/

	* mips.cc (plt0_entry_o32, plt0_entry_n32, plt0_entry_n64,
	lazy_stub_normal_1, lazy_stub_normal_1_n64,
	lazy_stub_normal_2, lazy_stub_normal_2_n64, lazy_stub_big,
	lazy_stub_big_n64, lazy_stub_micromips32_normal_1_n64,
	lazy_stub_micromips32_normal_2_n64, lazy_stub_micromips32_big,
	lazy_stub_micromips32_big_n64): Update to use 'or' for move instead
	of 'addu/daddu'.

ld/testsuite/

	* ld-mips-elf/compressed-plt-1-n32-mips16.od: Update test.
	* ld-mips-elf/compressed-plt-1-n32-umips.od: Ditto.
	* ld-mips-elf/compressed-plt-1-o32-mips16-got.od: Ditto.
	* ld-mips-elf/compressed-plt-1-o32-mips16-only.od: Ditto.
	* ld-mips-elf/compressed-plt-1-o32-mips16-word.od: Ditto.
	* ld-mips-elf/compressed-plt-1-o32-mips16.od: Ditto.
	* ld-mips-elf/compressed-plt-1-o32-se.od: Ditto.
	* ld-mips-elf/compressed-plt-1-o32-umips-got.od: Ditto.
	* ld-mips-elf/compressed-plt-1-o32-umips-word.od: Ditto.
	* ld-mips-elf/compressed-plt-1-o32-umips.od: Ditto.
	* ld-mips-elf/jalx-2.dd: Ditto.
	* ld-mips-elf/mips16-pic-3.dd: Ditto.
	* ld-mips-elf/pic-and-nonpic-3a.dd: Ditto.
	* ld-mips-elf/pic-and-nonpic-3b.dd: Ditto.
	* ld-mips-elf/pic-and-nonpic-5b.dd: Ditto.
	* ld-mips-elf/pic-and-nonpic-6-n32.dd: Ditto.
	* ld-mips-elf/pic-and-nonpic-6-o32.dd: Ditto.
	* ld-mips-elf/stub-dynsym-1-10000.d: Ditto.
	* ld-mips-elf/stub-dynsym-1-2fe80.d: Ditto.
	* ld-mips-elf/stub-dynsym-1-7fff.d: Ditto.
	* ld-mips-elf/stub-dynsym-1-8000.d: Ditto.
	* ld-mips-elf/stub-dynsym-1-fff0.d: Ditto.
	* ld-mips-elf/tlsbin-o32.d: Ditto.
	* ld-mips-elf/tlsdyn-o32-1.d: Ditto.
	* ld-mips-elf/tlsdyn-o32-2.d: Ditto.
	* ld-mips-elf/tlsdyn-o32-3.d: Ditto.
	* ld-mips-elf/tlsdyn-o32.d: Ditto.
	* ld-mips-elf/tlslib-o32.d: Ditto.
 2015-08-12 17:10:22 +01:00
H.J. Lu
37a42ee9ad Regenerate configure files 
bfd/

	* configure: Regenerated.

binutils/

	* configure: Regenerated.

gas/

	* configure: Regenerated.

gold/

	* configure: Regenerated.

gprof/

	* configure: Regenerated.

ld/

	* configure: Regenerated.

opcodes/

	* configure: Regenerated.
 2015-07-27 07:56:32 -07:00
Doug Kwan
ab3b14b04b Make arm_unaligned_reloc test less sensitive to disassembler output format. 2015-07-26 00:54:26 -07:00
H.J. Lu
72f4393d8c Remove leading/trailing white spaces in ChangeLog 2015-07-24 04:16:47 -07:00
Han Shen
cdb061674c 2015-07-23 Ian Coolidge <icoolidge@google.com> 
Plumb --pic-veneer option for gold.

gold/ChangeLog:
	* arm.cc (Reloc_stub::stub_type_for_reloc): Plumb to stub generation.
	* options.h (General_options): Add --pic-veneer option.
 2015-07-23 15:56:33 -07:00