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Author SHA1 Message Date
H.J. Lu
caa65211bb Add "-z call-nop=PADDING" option to ld 
The ld linker can transform indirect call to a locally defined function,
foo, via its GOT slot, to either "NOP call foo" or "call foo NOP" where
NOP is a 1-byte NOP padding.  This patch adds a "-z call-nop=PADDING"
option to x86 ld to control 1-byte NOP padding for x86 call instruction.
PADDING is one of prefix-addr, prefix-nop, suffix-nop, prefix-NUMBER or
suffix-NUMBER.

bfd/

	* elf32-i386.c (elf_i386_convert_load): Use call_nop_byte and
	check call_nop_as_suffix for 1-byte NOP padding to pad call.
	* elf64-x86-64.c (elf_x86_64_convert_load): Likewise.

include/

	* bfdlink.h (bfd_link_info): Add call_nop_as_suffix and
	call_nop_byte.

ld/

	* ld/ld.texinfo: Document "-z call-nop=PADDING" option.
	* emulparams/call_nop.sh: New file.
	* emulparams/elf_i386_be.sh: Source
	${srcdir}/emulparams/call_nop.sh.
	* emulparams/elf_i386_chaos.sh: Likewise.
	* emulparams/elf_i386_ldso.sh: Likewise.
	* emulparams/elf_i386_vxworks.sh: Likewise.
	* emulparams/elf_iamcu.sh: Likewise.
	* emulparams/elf_k1om.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Set
	link_info.call_nop_byte if $CALL_NOP_BYTE isn't empty.

ld/testsuite/

	* ld-i386/call3.s: New file.
	* ld-i386/call3a.d: Likewise.
	* ld-i386/call3b.d: Likewise.
	* ld-i386/call3c.d: Likewise.
	* ld-i386/call3d.d: Likewise.
	* ld-i386/call3e.d: Likewise.
	* ld-i386/call3f.d: Likewise.
	* ld-i386/call3g.d: Likewise.
	* ld-i386/call3h.d: Likewise.
	* ld-i386/load1-nacl.d: Likewise.
	* ld-x86-64/call1.s: Likewise.
	* ld-x86-64/call1a.d: Likewise.
	* ld-x86-64/call1b.d: Likewise.
	* ld-x86-64/call1c.d: Likewise.
	* ld-x86-64/call1d.d: Likewise.
	* ld-x86-64/call1e.d: Likewise.
	* ld-x86-64/call1f.d: Likewise.
	* ld-x86-64/call1g.d: Likewise.
	* ld-x86-64/call1h.d: Likewise.
	* ld-x86-64/call1i.d: Likewise.
	* ld-x86-64/load1a-nacl.d: Likewise.
	* ld-x86-64/load1b-nacl.d: Likewise.
	* ld-x86-64/load1c-nacl.d: Likewise.
	* ld-x86-64/load1d-nacl.d: Likewise.
 2015-10-22 04:56:39 -07:00
H.J. Lu
889c2a6796 Add -z noextern-protected-data to ld for ELF/x86 
Address of protected data defined in the shared library may be external,
i.e., due to copy relocation.  By default, linker backend checks if
relocations against protected data symbols are valid for building shared
library and issues an error if relocation isn't allowed.  The new option
override linker backend default.  When -z noextern-protected-data is used,
updates on protected data symbols by another module won't be visibile
to the resulting shared library.  This option is specific to ELF/i386
and ELF/x86-64.

bfd/

	PR ld/pr17709
	* elflink.c (_bfd_elf_adjust_dynamic_copy): Check
	info->extern_protected_data when warning copy relocs against
	protected symbols.
	(_bfd_elf_symbol_refs_local_p): Check info->extern_protected_data
	when checking protected non-function symbols.

include/

	PR ld/pr17709
	* bfdlink.h (bfd_link_info): Add extern_protected_data.

ld/

	PR ld/pr17709
	* ld.texinfo: Document "-z noextern-protected-data".
	* ldmain.c (main): Initialize link_info.extern_protected_data
	to -1.
	* lexsup.c (elf_shlib_list_options): Add
	"-z [no]extern-protected-data".
	* emulparams/elf32_x86_64.sh: Source extern_protected_data.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_k1om.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* emulparams/elf_x86_64.sh: Source extern_protected_data.sh.
	(PARSE_AND_LIST_OPTIONS): Renamed to ...
	(PARSE_AND_LIST_OPTIONS_BNDPLT): This.
	(PARSE_AND_LIST_ARGS_CASE_Z): Renamed to ...
	(PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT): This.
	(PARSE_AND_LIST_OPTIONS): Append $PARSE_AND_LIST_OPTIONS_BNDPLT.
	(PARSE_AND_LIST_ARGS_CASE_Z): Append
	$PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT.
	* emulparams/extern_protected_data.sh: New file.

ld/testsuite/

	PR ld/pr17709
	* ld-i386/i386.exp: Run protected6b.
	* ld-i386/protected6b.d: New file.
	* ld-x86-64/protected6b.d: Likewise.
	* ld-x86-64/x86-64.exp:  Run protected6b.
 2015-04-14 04:13:11 -07:00
H.J. Lu
a319637f7c Define IREL_IN_PLT for elf_k1om.sh and elf_l1om.sh 
* emulparams/elf_k1om.sh (IREL_IN_PLT): Define.
	* emulparams/elf_l1om.sh (IREL_IN_PLT): Likewise.
 2013-12-20 08:27:02 -08:00
Alan Modra
134960cc27 * emulparams/elf_x86_64.sh (LARGE_BSS_AFTER_BSS): Define. 
* emulparams/elf32_x86_64.sh: Likewise.
	* emulparams/elf_k1om.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* scripttempl/elf.sc (LARGE_BSS): Define rather than appending to
	OTHER_BSS_SECTIONS.  Substitute in script.
 2013-01-09 05:51:32 +00:00
H.J. Lu
17d6eea5d5 Don't hardcode .got.plt into DATA_SEGMENT_RELRO_END evaluation 
ld/

	PR ld/14215
	* ldexp.c (fold_name <SIZEOF, ALIGNOF>): Allow forward section
	references.
	* emulparams/elf32_x86_64.sh (SEPARATE_GOTPLT): Depend on size of
	.got.plt.
	* emulparams/elf32mb_linux.sh (SEPARATE_GOTPLT): Likewise.
	* emulparams/elf32tilegx.sh (SEPARATE_GOTPLT): Likewise.
	* emulparams/elf32tilepro.sh (SEPARATE_GOTPLT): Likewise.
	* emulparams/elf64tilegx.sh (SEPARATE_GOTPLT): Likewise.
	* emulparams/elf_i386.sh (SEPARATE_GOTPLT): Likewise.
	* emulparams/elf_k1om.sh (SEPARATE_GOTPLT): Likewise.
	* emulparams/elf_l1om.sh (SEPARATE_GOTPLT): Likewise.
	* emulparams/elf_x86_64.sh (SEPARATE_GOTPLT): Likewise.

ld/testsuite/

	PR ld/14215
	* ld-i386/i386.exp: Run pr14215.
	* ld-x86-64/x86-64.exp: Likewise.

	* ld-i386/pr14215.d: New file.
	* ld-i386/pr14215.s: Likewise.
	* ld-x86-64/pr14215.d: Likewise.
	* ld-x86-64/pr14215.s: Likewise.
 2012-06-11 13:23:51 +00:00
H.J. Lu
b7761f1106 Support arch-dependent fill 
bfd/

2012-01-31  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/13616
	* archures.c (bfd_arch_info): Add fill.
	(bfd_default_arch_struct): Add bfd_arch_default_fill.
	(bfd_arch_default_fill): New.

	* configure.in: Set bfd version to 2.22.52.
	* configure: Regenerated.

	* cpu-alpha.c: Add bfd_arch_default_fill to bfd_arch_info
	initializer.
	* cpu-arc.c: Likewise.
	* cpu-arm.c: Likewise.
	* cpu-avr.c: Likewise.
	* cpu-bfin.c: Likewise.
	* cpu-cr16.c: Likewise.
	* cpu-cr16c.c: Likewise.
	* cpu-cris.c: Likewise.
	* cpu-crx.c: Likewise.
	* cpu-d10v.c: Likewise.
	* cpu-d30v.c: Likewise.
	* cpu-dlx.c: Likewise.
	* cpu-epiphany.c: Likewise.
	* cpu-fr30.c: Likewise.
	* cpu-frv.c: Likewise.
	* cpu-h8300.c: Likewise.
	* cpu-h8500.c: Likewise.
	* cpu-hppa.c: Likewise.
	* cpu-i370.c: Likewise.
	* cpu-i860.c: Likewise.
	* cpu-i960.c: Likewise.
	* cpu-ia64.c: Likewise.
	* cpu-ip2k.c: Likewise.
	* cpu-iq2000.c: Likewise.
	* cpu-lm32.c: Likewise.
	* cpu-m10200.c: Likewise.
	* cpu-m10300.c: Likewise.
	* cpu-m32c.c: Likewise.
	* cpu-m32r.c: Likewise.
	* cpu-m68hc11.c: Likewise.
	* cpu-m68hc12.c: Likewise.
	* cpu-m68k.c: Likewise.
	* cpu-m88k.c: Likewise.
	* cpu-mcore.c: Likewise.
	* cpu-mep.c: Likewise.
	* cpu-microblaze.c: Likewise.
	* cpu-mips.c: Likewise.
	* cpu-mmix.c: Likewise.
	* cpu-moxie.c: Likewise.
	* cpu-msp430.c: Likewise.
	* cpu-mt.c: Likewise.
	* cpu-ns32k.c: Likewise.
	* cpu-openrisc.c: Likewise.
	* cpu-or32.c: Likewise.
	* cpu-pdp11.c: Likewise.
	* cpu-pj.c: Likewise.
	* cpu-plugin.c: Likewise.
	* cpu-powerpc.c: Likewise.
	* cpu-rl78.c: Likewise.
	* cpu-rs6000.c: Likewise.
	* cpu-rx.c: Likewise.
	* cpu-s390.c: Likewise.
	* cpu-score.c: Likewise.
	* cpu-sh.c: Likewise.
	* cpu-sparc.c: Likewise.
	* cpu-spu.c: Likewise.
	* cpu-tic30.c: Likewise.
	* cpu-tic4x.c: Likewise.
	* cpu-tic54x.c: Likewise.
	* cpu-tic6x.c: Likewise.
	* cpu-tic80.c: Likewise.
	* cpu-tilegx.c: Likewise.
	* cpu-tilepro.c: Likewise.
	* cpu-v850.c: Likewise.
	* cpu-vax.c: Likewise.
	* cpu-w65.c: Likewise.
	* cpu-we32k.c: Likewise.
	* cpu-xc16x.c: Likewise.
	* cpu-xstormy16.c: Likewise.
	* cpu-xtensa.c: Likewise.
	* cpu-z80.c: Likewise.
	* cpu-z8k.c: Likewise.

	* cpu-i386.c: Include "libiberty.h".
	(bfd_arch_i386_fill): New.
	Add bfd_arch_i386_fill to  bfd_arch_info initializer.

	* cpu-k1om.c: Add bfd_arch_i386_fill to  bfd_arch_info initializer.
	* cpu-l1om.c: Likewise.

	* linker.c (default_data_link_order): Call abfd->arch_info->fill
	if fill size is 0.

	* bfd-in2.h: Regenerated.

include/

2012-01-31  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/13616
	* bfdlink.h (bfd_link_order): Update comments on data size.

ld/

2012-01-31  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/13616
	* emulparams/elf32_x86_64.sh: Remove NOP.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_i386_be.sh: Likewise.
	* emulparams/elf_i386_ldso.sh: Likewise.
	* emulparams/elf_i386_vxworks.sh: Likewise.
	* emulparams/elf_k1om.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.

	* ldlang.c (zero_fill): Initialized to 0.

	* ldwrite.c (build_link_order): Set data size to linker odrder
	size when they are the same.

	* scripttempl/elf.sc: Don't specify fill if NOP is undefined.

ld/testsuite/

2012-01-31  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/13616
	* ld-i386/tlsbindesc.dd: Update no-op padding.
	* ld-i386/tlsnopic.dd: Likewise.
	* ld-i386/tlspic.dd: Likewise.
	* ld-x86-64/tlsbin.dd: Likewise.
	* ld-x86-64/tlsbindesc.dd: Likewise.
	* ld-x86-64/tlspic.dd: Likewise.
 2012-01-31 17:54:39 +00:00
H.J. Lu
7a9068fe16 Add initial Intel K1OM support. 
bfd/

2011-07-22  H.J. Lu  <hongjiu.lu@intel.com>

	* Makefile.am (ALL_MACHINES): Add cpu-k1om.lo.
	(ALL_MACHINES_CFILES): Add cpu-k1om.c.
	* Makefile.in: Regenerated.

	* archures.c (bfd_architecture): Add bfd_arch_k1om.
	(bfd_k1om_arch): New.
	(bfd_archures_list): Add &bfd_k1om_arch.
	* bfd-in2.h: Regenerated.

	* config.bfd (targ64_selvecs): Add bfd_elf64_k1om_vec if
	bfd_elf64_x86_64_vec is supported.  Add bfd_elf64_k1om_freebsd_vec
	if bfd_elf64_x86_64_freebsd_vec is supported.
	(targ_selvecs): Likewise.

	* configure.in: Support bfd_elf64_k1om_vec and
	bfd_elf64_k1om_freebsd_vec.
	* configure: Regenerated.

	* cpu-k1om.c: New.

	* elf64-x86-64.c (elf64_k1om_elf_object_p): New.
	(bfd_elf64_k1om_vec): Likewise.
	(bfd_elf64_k1om_freebsd_vec): Likewise.

	* targets.c (bfd_elf64_k1om_vec): New.
	(bfd_elf64_k1om_freebsd_vec): Likewise.
	(_bfd_target_vector): Add bfd_elf64_k1om_vec and
	bfd_elf64_k1om_freebsd_vec.

binutils/

2011-07-22  H.J. Lu  <hongjiu.lu@intel.com>

	* dwarf.c (init_dwarf_regnames): Handle EM_K1OM.

	* elfedit.c (elf_machine): Support EM_K1OM.
	(elf_class): Likewise.

	* readelf.c (guess_is_rela): Handle EM_K1OM.
	(dump_relocations): Likewise.
	(get_machine_name): Likewise.
	(get_section_type_name): Likewise.
	(get_elf_section_flags): Likewise.
	(process_section_headers): Likewise.
	(get_symbol_index_type): Likewise.
	(is_32bit_abs_reloc): Likewise.
	(is_32bit_pcrel_reloc): Likewise.
	(is_64bit_abs_reloc): Likewise.
	(is_64bit_pcrel_reloc): Likewise.
	(is_none_reloc): Likewise.

	* doc/binutils.texi: Mention K1OM for elfedit.

binutils/testsuite/

2011-07-22  H.J. Lu  <hongjiu.lu@intel.com>

	* binutils-all/elfedit.exp: Run elfedit-4.

	* binutils-all/elfedit-4.d: New.

gas/

2011-07-22  H.J. Lu  <hongjiu.lu@intel.com>

	* config/tc-i386.c (cpu_arch): Add k1om.
	(i386_align_code): Handle PROCESSOR_K1OM.
	(check_cpu_arch_compatible): Check EM_K1OM.
	(i386_arch): Handle Intel K1OM.
	(i386_mach): Return bfd_mach_k1om for Intel K1OM.
	(i386_target_format): Return ELF_TARGET_K1OM_FORMAT for Intel
	K1OM.

	* config/tc-i386.h (ELF_TARGET_K1OM_FORMAT): New.
	(processor_type): Add PROCESSOR_K1OM.

	* doc/c-i386.texi: Document k1om.

gas/testsuite/

2011-07-22  H.J. Lu  <hongjiu.lu@intel.com>

	* gas/i386/k1om.d: New.
	* gas/i386/k1om-inval.l: Likewise.
	* gas/i386/k1om-inval.s: Likewise.

	* gas/i386/i386.exp: Run k1om-inval and k1om.

include/elf/

2011-07-22  H.J. Lu  <hongjiu.lu@intel.com>

	* common.h (EM_K1OM): New.

ld/

2011-07-22  H.J. Lu  <hongjiu.lu@intel.com>

	* Makefile.am (ALL_64_EMULATIONS): Add eelf_k1om.o and
	eelf_k1om_fbsd.o
	(eelf_k1om.c): New.
	(eelf_k1om_fbsd.c): Likewise.
	* Makefile.in: Regenerated.

	* configure.tgt (targ64_extra_emuls): Add elf_k1om if elf_x86_64
	is supported.  Add elf_k1om_fbsd if elf_x86_64_fbsd is supported.
	(targ_extra_emuls): Likewise.

	* emulparams/elf_k1om.sh: New.
	* emulparams/elf_k1om_fbsd.sh: Likewise.

ld/testsuite/

2011-07-22  H.J. Lu  <hongjiu.lu@intel.com>

	* ld-x86-64/abs-k1om.d: New.
	* ld-x86-64/protected2-k1om.d: Likewise.
	* ld-x86-64/protected3-k1om.d: Likewise.

	* ld-x86-64/x86-64.exp: Run abs-k1om, protected2-k1om and
	protected3-k1om.

opcodes/

2011-07-22  H.J. Lu  <hongjiu.lu@intel.com>

	* configure.in: Handle bfd_k1om_arch.
	* configure: Regenerated.

	* disassemble.c (disassembler): Handle bfd_k1om_arch.

	* i386-dis.c (print_insn): Handle bfd_mach_k1om and
	bfd_mach_k1om_intel_syntax.

	* i386-gen.c (cpu_flag_init): Set CPU_UNKNOWN_FLAGS to
	~(CpuL1OM|CpuK1OM).  Add CPU_K1OM_FLAGS.
	(cpu_flags): Add CpuK1OM.

	* i386-opc.h (CpuK1OM): New.
	(i386_cpu_flags): Add cpuk1om.

	* i386-init.h: Regenerated.
	* i386-tbl.h: Likewise.
 2011-07-22 20:22:38 +00:00