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Author SHA1 Message Date
H.J. Lu
832ca732b8 x86-64: Add -z mark-plt and -z nomark-plt 
The PLT entry in executables and shared libraries contains an indirect
branch, like

 	jmp *foo@GOTPCREL(%rip)
	push $index_foo
	jmp .PLT0

or

	endbr64
 	jmp *foo@GOTPCREL(%rip)
 	NOP padding

which is used to branch to the function, foo, defined in another object.
Each R_X86_64_JUMP_SLOT relocation has a corresponding PLT entry.

The dynamic tags have been added to the x86-64 psABI to mark such PLT
entries:

6d824a52a4

Add an x86-64 linker option, -z mark-plt, to mark PLT entries with

 #define DT_X86_64_PLT     (DT_LOPROC + 0)
 #define DT_X86_64_PLTSZ   (DT_LOPROC + 1)
 #define DT_X86_64_PLTENT  (DT_LOPROC + 3)

1. DT_X86_64_PLT: The address of the procedure linkage table.
2. DT_X86_64_PLTSZ: The total size, in bytes, of the procedure linkage
table.
3. DT_X86_64_PLTENT: The size, in bytes, of a procedure linkage table
entry.

and set the r_addend field of the R_X86_64_JUMP_SLOT relocation to the
memory offset of the indirect branch instruction.  The dynamic linker
can use these tags to update the PLT section to direct branch.

bfd/

	* elf-linker-x86.h (elf_linker_x86_params): Add mark_plt.
	* elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Set the
	r_addend of R_X86_64_JUMP_SLOT to the indirect branch offset
	in PLT entry for -z mark-plt.
	* elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Add
	DT_X86_64_PLT, DT_X86_64_PLTSZ and DT_X86_64_PLTENT for
	-z mark-plt.
	(_bfd_x86_elf_finish_dynamic_sections): Set DT_X86_64_PLT,
	DT_X86_64_PLTSZ and DT_X86_64_PLTENT.
	(_bfd_x86_elf_get_synthetic_symtab): Ignore addend for
	JUMP_SLOT relocation.
	(_bfd_x86_elf_link_setup_gnu_properties): Set
	plt_indirect_branch_offset.
	* elfxx-x86.h (elf_x86_plt_layout): Add plt_indirect_branch_offset.

binutils/

	* readelf.c (get_x86_64_dynamic_type): New function.
	(get_dynamic_type): Call get_x86_64_dynamic_type.

include/

	* elf/x86-64.h (DT_X86_64_PLT): New.
	(DT_X86_64_PLTSZ): Likewise.
	(DT_X86_64_PLTENT): Likewise.

ld/

	* ld.texi: Document -z mark-plt and -z nomark-plt.
	* emulparams/elf32_x86_64.sh: Source x86-64-plt.sh.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/x86-64-plt.sh: New file.
	* testsuite/ld-x86-64/mark-plt-1.s: Likewise.
	* testsuite/ld-x86-64/mark-plt-1a-x32.d: Likewise.
	* testsuite/ld-x86-64/mark-plt-1a.d: Likewise.
	* testsuite/ld-x86-64/mark-plt-1b-x32.d: Likewise.
	* testsuite/ld-x86-64/mark-plt-1b.d: Likewise.
	* testsuite/ld-x86-64/mark-plt-1c-x32.d: Likewise.
	* testsuite/ld-x86-64/mark-plt-1c.d: Likewise.
	* testsuite/ld-x86-64/mark-plt-1d-x32.d: Likewise.
	* testsuite/ld-x86-64/mark-plt-1d.d: Likewise.
	* testsuite/ld-x86-64/x86-64.exp: Run -z mark-plt tests.
 2023-09-29 07:58:53 -07:00
H.J. Lu
6a91be8666 ld: Initial DT_RELR support 
Add a -z pack-relative-relocs option to enable DT_RELR and create a
relr.dyn section for DT_RELR.  DT_RELR is implemented with the linker
relaxation infrastructure, but it doesn't require the --relax option
enabled.  -z pack-relative-relocs implies -z combreloc.  -z nocombreloc
implies -z nopack-relative-relocs.

-z pack-relative-relocs is chosen over the similar option in lld,
--pack-dyn-relocs=relr, to implement a glibc binary lockout mechanism
with a special glibc version symbol, to avoid random crashes of DT_RELR
binaries with the existing glibc binaries.

bfd/

	* elf-bfd.h (elf_link_hash_table): Add srelrdyn.
	* elflink.c (_bfd_elf_link_create_dynamic_sections): Create a
	.relr.dyn section for DT_RELR.

include/

	* bfdlink.h (bfd_link_info): Add enable_dt_relr.

ld/

	* News: Mention -z pack-relative-relocs and
	-z nopack-relative-relocs.
	* ld.texi: Document -z pack-relative-relocs and
	-z nopack-relative-relocs.
	* ldelf.c (ldelf_after_parse): Disable DT_RELR if not building
	PIE nor shared library.  Add 3 spare dynamic tags for DT_RELR,
	DT_RELRSZ and DT_RELRENT.
	* ldlang.c (lang_relax_sections): Also enable relaxation if
	DT_RELR is enabled.
	* emulparams/elf32_x86_64.sh: Source dt-relr.sh.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/dt-relr.sh: New file.
	* scripttempl/elf.sc: Support .relr.dyn.
 2022-01-12 06:04:29 -08:00
H.J. Lu
68b007788a ld/x86: Add -z report-relative-reloc 
Linker generated relative relocations don't have symbol info:

[hjl@gnu-cfl-2 tmpdir]$ readelf -rW dump

Relocation section '.rela.dyn' at offset 0x180 contains 2 entries:
 Offset     Info    Type                Sym. Value  Symbol's Name + Addend
00002f70  00000008 R_X86_64_RELATIVE                 1000
00002f68  00000025 R_X86_64_IRELATIVE                1007
[hjl@gnu-cfl-2 tmpdir]$

Add -z report-relative-reloc to x86 ELF linker to report dynamic relative
relocations:

[hjl@gnu-cfl-2 tmpdir]$ ../ld-new -pie -melf32_x86_64 -z report-relative-reloc -o dump report-reloc-1.o
dump: R_X86_64_IRELATIVE (offset: 0x00002f68, info: 0x00000025, addend: 0x00001007) against 'ifunc' for section '.data.rel.ro.local' in report-reloc-1.o
dump: R_X86_64_RELATIVE (offset: 0x00002f70, info: 0x00000008, addend: 0x00001000) against '_start' for section '.data.rel.ro.local' in report-reloc-1.o
[hjl@gnu-cfl-2 tmpdir]$

It can be used to map relative relocations to corresponding symbols.

bfd/

	* elf-linker-x86.h (elf_linker_x86_params): Add
	report_relative_reloc.
	* elf32-i386.c (elf_i386_relocate_section): Call
	_bfd_x86_elf_link_report_relative_reloc to report relative
	relocations for -z report-relative-reloc.
	(elf_i386_finish_dynamic_symbol): Likewse.
	* elf64-x86-64.c (elf_x86_64_relocate_section): Likewse.
	(elf_x86_64_finish_dynamic_symbol): Likewse.
	* elfxx-x86.c (_bfd_x86_elf_link_report_relative_reloc): New
	function.
	* elfxx-x86.h (_bfd_x86_elf_link_report_relative_reloc): New
	prototype.

ld/

	* NEWS: Mention -z report-relative-reloc.
	* ld.texi: Document -z report-relative-reloc.
	* emulparams/elf32_x86_64.sh: Source x86-report-relative.sh.
	* emulparams/elf_i386.sh: Likewse.
	* emulparams/elf_x86_64.sh: Likewse.
	* emulparams/x86-report-relative.sh: New file.
	* testsuite/ld-i386/report-reloc-1.d: Likewse.
	* testsuite/ld-i386/report-reloc-1.l: Likewse.
	* testsuite/ld-i386/report-reloc-1.s: Likewse.
	* testsuite/ld-x86-64/report-reloc-1-x32.d: Likewse.
	* testsuite/ld-x86-64/report-reloc-1.d: Likewse.
	* testsuite/ld-x86-64/report-reloc-1.l: Likewse.
	* testsuite/ld-x86-64/report-reloc-1.s: Likewse.
	* testsuite/ld-i386/i386.exp: Run report-reloc-1.
	* testsuite/ld-x86-64/x86-64.exp: Run report-reloc-1 and
	report-reloc-1-x32.
 2021-01-15 18:07:07 -08:00
H.J. Lu
32930e4edb x86: Support GNU_PROPERTY_X86_ISA_1_V[234] marker 
GCC 11 supports -march=x86-64-v[234] to enable x86 micro-architecture ISA
levels:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97250

Update GNU_PROPERTY_X86_ISA_1_XXX macros:

https://gitlab.com/x86-psABIs/x86-64-ABI/-/merge_requests/13

in x86 ELF binaries to indicate that micro-architecture ISA levels
required to execute the binary:

 #define GNU_PROPERTY_X86_ISA_1_NEEDED (GNU_PROPERTY_X86_UINT32_OR_LO + 2)
 #define GNU_PROPERTY_X86_ISA_1_USED (GNU_PROPERTY_X86_UINT32_OR_AND_LO + 2)
 #define GNU_PROPERTY_X86_ISA_1_V2 (1U << 0)
 #define GNU_PROPERTY_X86_ISA_1_V3 (1U << 1)
 #define GNU_PROPERTY_X86_ISA_1_V4 (1U << 2)

The previous GNU_PROPERTY_X86_ISA_1_XXX  macros are deprecated and renamed
to GNU_PROPERTY_X86_COMPAT_2_ISA_1_XXX.

In addition to EM_X86_64, GNU_PROPERTY_X86_ISA_1_V[234] marker can be used
by ld.so to detect the x86-64-v4 shared library placed in an x86-64-v2
directory by mistake on an x86-64-v2 machine to avoid crashes on x86-64-v4
instructions.

Add -z x86-64-v[234] linker command line option to mark x86-64-v[234]
ISA level as needed.

Also add

 #define GNU_PROPERTY_X86_FEATURE_2_MASK (1U << 11)

for mask registers.

bfd/

	PR gas/26703
	* elf-linker-x86.h (elf_linker_x86_params): Add isa_level.
	* elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Merge
	GNU_PROPERTY_X86_ISA_1_V[234].
	(_bfd_x86_elf_link_setup_gnu_properties): Generate
	GNU_PROPERTY_X86_ISA_1_V[234] for -z x86-64-v[234].

binutils/

	PR gas/26703
	* readelf.c (decode_x86_compat_2_isa): New function.
	(decode_x86_isa): Updated for new X86_ISA_1_XXX bits.
	(decode_x86_feature_1): Handle GNU_PROPERTY_X86_FEATURE_2_MASK.
	(print_gnu_property_note): Handle X86_COMPAT_2_ISA_1_USED,
	and X86_COMPAT_2_ISA_1_NEEDED.
	* testsuite/binutils-all/i386/pr21231b.s: Updated to the current
	GNU_PROPERTY_X86_ISA_1_USED and GNU_PROPERTY_X86_ISA_1_NEEDED
	values.
	* testsuite/binutils-all/x86-64/pr21231b.s: Likewise.
	* testsuite/binutils-all/x86-64/pr23494a.s: Likewise.
	* testsuite/binutils-all/x86-64/pr23494b.s: Likewise.
	* testsuite/binutils-all/x86-64/pr23494c.s: Likewise.
	* testsuite/binutils-all/i386/empty.d: Updated.
	* testsuite/binutils-all/i386/ibt.d: Likewise.
	* testsuite/binutils-all/i386/pr21231a.d: Likewise.
	* testsuite/binutils-all/i386/pr21231b.d: Likewise.
	* testsuite/binutils-all/i386/shstk.d: Likewise.
	* testsuite/binutils-all/x86-64/empty-x32.d: Likewise.
	* testsuite/binutils-all/x86-64/empty.d: Likewise.
	* testsuite/binutils-all/x86-64/ibt-x32.d: Likewise.
	* testsuite/binutils-all/x86-64/ibt.d: Likewise.
	* testsuite/binutils-all/x86-64/pr21231a.d: Likewise.
	* testsuite/binutils-all/x86-64/pr21231b.d: Likewise.
	* testsuite/binutils-all/x86-64/pr23494a-x32.d: Likewise.
	* testsuite/binutils-all/x86-64/pr23494a.d: Likewise.
	* testsuite/binutils-all/x86-64/pr23494c-x32.d: Likewise.
	* testsuite/binutils-all/x86-64/pr23494c.d: Likewise.
	* testsuite/binutils-all/x86-64/pr23494d-x32.d: Likewise.
	* testsuite/binutils-all/x86-64/pr23494d.d: Likewise.
	* testsuite/binutils-all/x86-64/pr23494e-x32.d: Likewise.
	* testsuite/binutils-all/x86-64/pr23494e.d: Likewise.
	* testsuite/binutils-all/x86-64/shstk-x32.d: Likewise.
	* testsuite/binutils-all/x86-64/shstk.d: Likewise.

gas/

	PR gas/26703
	* config/tc-i386.c (xstate): Add xstate_mask.
	(md_assemble): Check i.types[j], instead of i.tm.operand_types[j],
	for xstate.  Set xstate_mask, instead of xstate_zmm, for RegMask.
	(output_insn): Update for GNU_PROPERTY_X86_ISA_1_V[234].  Update
	xstate for mask register and VSIB.
	* testsuite/gas/i386/i386.exp: Run more GNU_PROPERTY tests.
	* testsuite/gas/i386/property-1.s: Updated to the current
	GNU_PROPERTY_X86_ISA_1_USED value.
	* testsuite/gas/i386/property-2.s: Only keep cmove.
	* testsuite/gas/i386/property-3.s: Changed to addsubpd.
	* testsuite/gas/i386/property-1.d: Updated.
	* testsuite/gas/i386/property-2.d: Likewise.
	* testsuite/gas/i386/property-3.d: Likewise.
	* testsuite/gas/i386/property-4.d: Likewise.
	* testsuite/gas/i386/property-5.d: Likewise.
	* testsuite/gas/i386/property-6.d: Likewise.
	* testsuite/gas/i386/x86-64-property-1.d: Likewise.
	* testsuite/gas/i386/x86-64-property-2.d: Likewise.
	* testsuite/gas/i386/x86-64-property-3.d: Likewise.
	* testsuite/gas/i386/x86-64-property-4.d: Likewise.
	* testsuite/gas/i386/x86-64-property-5.d: Likewise.
	* testsuite/gas/i386/x86-64-property-6.d: Likewise.
	* testsuite/gas/i386/x86-64-property-7.d: Likewise.
	* testsuite/gas/i386/x86-64-property-8.d: Likewise.
	* testsuite/gas/i386/x86-64-property-9.d: Likewise.
	* testsuite/gas/i386/property-11.d: New file.
	* testsuite/gas/i386/property-11.s: Likewise.
	* testsuite/gas/i386/property-12.d: Likewise.
	* testsuite/gas/i386/property-12.s: Likewise.
	* testsuite/gas/i386/property-13.d: Likewise.
	* testsuite/gas/i386/property-13.s: Likewise.
	* testsuite/gas/i386/x86-64-property-11.d: Likewise.
	* testsuite/gas/i386/x86-64-property-12.d: Likewise.
	* testsuite/gas/i386/x86-64-property-13.d: Likewise.
	* testsuite/gas/i386/x86-64-property-14.d: Likewise.
	* testsuite/gas/i386/x86-64-property-14.s: Likewise.

include/

	PR gas/26703
	* elf/common.h (GNU_PROPERTY_X86_ISA_1_USED): Renamed to ...
	(GNU_PROPERTY_X86_COMPAT_2_ISA_1_USED): This.
	(GNU_PROPERTY_X86_ISA_1_NEEDED): Renamed to ...
	(GNU_PROPERTY_X86_COMPAT_2_ISA_1_NEEDED): This.
	(GNU_PROPERTY_X86_ISA_1_XXX): Renamed to ...
	(GNU_PROPERTY_X86_COMPAT_2_ISA_1_XXX): This.
	(GNU_PROPERTY_X86_ISA_1_NEEDED): New.
	(GNU_PROPERTY_X86_ISA_1_USED): Likewise.
	(GNU_PROPERTY_X86_ISA_1_V2): Likewise.
	(GNU_PROPERTY_X86_ISA_1_V3): Likewise.
	(GNU_PROPERTY_X86_ISA_1_V4): Likewise.
	(GNU_PROPERTY_X86_FEATURE_2_MASK): Likewise.

ld/

	PR gas/26703
	* NEWS: Mention -z x86-64-v[234].
	* ld.texi: Document -z x86-64-v[234].
	* emulparams/elf32_x86_64.sh: Use x86-64-level.sh.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/x86-64-level.sh: New file.
	* testsuite/ld-elf/x86-feature-1a.rd: Update.
	* testsuite/ld-elf/x86-feature-1b.rd: Likewise.
	* testsuite/ld-elf/x86-feature-1c.rd: Likewise.
	* testsuite/ld-elf/x86-feature-1d.rd: Likewise.
	* testsuite/ld-elf/x86-feature-1e.rd: Likewise.
	* testsuite/ld-i386/pr23372c.d: Likewise.
	* testsuite/ld-i386/pr23486c.d: Likewise.
	* testsuite/ld-i386/pr23486d.d: Likewise.
	* testsuite/ld-i386/pr24322a.d: Likewise.
	* testsuite/ld-i386/pr24322b.d: Likewise.
	* testsuite/ld-i386/property-1a.r: Likewise.
	* testsuite/ld-i386/property-2a.r: Likewise.
	* testsuite/ld-i386/property-3.r: Likewise.
	* testsuite/ld-i386/property-3a.r: Likewise.
	* testsuite/ld-i386/property-4.r: Likewise.
	* testsuite/ld-i386/property-4a.r: Likewise.
	* testsuite/ld-i386/property-5.r: Likewise.
	* testsuite/ld-i386/property-5a.r: Likewise.
	* testsuite/ld-i386/property-7a.r: Likewise.
	* testsuite/ld-i386/property-x86-3.d: Likewise.
	* testsuite/ld-i386/property-x86-4a.d: Likewise.
	* testsuite/ld-i386/property-x86-5.d: Likewise.
	* testsuite/ld-i386/property-x86-cet1.d: Likewise.
	* testsuite/ld-i386/property-x86-cet2a.d: Likewise.
	* testsuite/ld-i386/property-x86-cet5a.d: Likewise.
	* testsuite/ld-i386/property-x86-cet5b.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt1a.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt1b.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt2.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt3a.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt3b.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt4.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt5.d: Likewise.
	* testsuite/ld-i386/property-x86-shstk1a.d: Likewise.
	* testsuite/ld-i386/property-x86-shstk1b.d: Likewise.
	* testsuite/ld-i386/property-x86-shstk2.d: Likewise.
	* testsuite/ld-i386/property-x86-shstk3a.d: Likewise.
	* testsuite/ld-i386/property-x86-shstk3b.d: Likewise.
	* testsuite/ld-i386/property-x86-shstk4.d: Likewise.
	* testsuite/ld-i386/property-x86-shstk5.d: Likewise.
	* testsuite/ld-x86-64/pr23372c-x32.d: Likewise.
	* testsuite/ld-x86-64/pr23372c.d: Likewise.
	* testsuite/ld-x86-64/pr23486c.d: Likewise.
	* testsuite/ld-x86-64/pr23486d-x32.d: Likewise.
	* testsuite/ld-x86-64/pr23486d.d: Likewise.
	* testsuite/ld-x86-64/pr24322a-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24322a.d: Likewise.
	* testsuite/ld-x86-64/pr24322b-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24322b.d: Likewise.
	* testsuite/ld-x86-64/pr24458a-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24458a.d: Likewise.
	* testsuite/ld-x86-64/pr24458b-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24458b.d: Likewise.
	* testsuite/ld-x86-64/pr24458c-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24458c.d: Likewise.
	* testsuite/ld-x86-64/property-1a.r: Likewise.
	* testsuite/ld-x86-64/property-2a.r: Likewise.
	* testsuite/ld-x86-64/property-3.r: Likewise.
	* testsuite/ld-x86-64/property-3a.r: Likewise.
	* testsuite/ld-x86-64/property-4.r: Likewise.
	* testsuite/ld-x86-64/property-4a.r: Likewise.
	* testsuite/ld-x86-64/property-5.r: Likewise.
	* testsuite/ld-x86-64/property-5a.r: Likewise.
	* testsuite/ld-x86-64/property-7a.r: Likewise.
	* testsuite/ld-x86-64/property-x86-3-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-3.d: Likewise.
	* testsuite/ld-x86-64/property-x86-4a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-4a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-5-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-5.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet1-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet1.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet2a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet2a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet5a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet5a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet5b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet5b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt1a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt1a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt1b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt1b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt2-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt2.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt3a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt3a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt3b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt3b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt4-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt4.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt5-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt5.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk1a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk1a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk1b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk1b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk2-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk2.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk3a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk3a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk3b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk3b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk4-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk4.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk5-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-shstk5.d: Likewise.
	* testsuite/ld-i386/i386.exp: Run property-x86-6,
	property-x86-isa1, property-x86-isa2 and property-x86-isa3.
	* testsuite/ld-i386/property-x86-1.S: Updated to the current
	GNU_PROPERTY_X86_ISA_1_USED and GNU_PROPERTY_X86_ISA_1_NEEDED
	values.
	* testsuite/ld-i386/property-x86-2.S: Likewise.
	* testsuite/ld-i386/property-x86-3.s: Likewise.
	* testsuite/ld-x86-64/pr23372d.s: Likewise.
	* testsuite/ld-x86-64/pr23372e.s: Likewise.
	* testsuite/ld-x86-64/pr23372f.s: Likewise.
	* testsuite/ld-x86-64/pr23486c.s: Likewise.
	* testsuite/ld-x86-64/pr23486d.s: Likewise.
	* testsuite/ld-x86-64/property-x86-1.S: Likewise.
	* testsuite/ld-x86-64/property-x86-2.S: Likewise.
	* testsuite/ld-x86-64/property-x86-3.s: Likewise.
	* testsuite/ld-x86-64/property-x86-5a.s: Likewise.
	* testsuite/ld-x86-64/property-x86-5b.s: Likewise.
	* testsuite/ld-i386/property-x86-6.d: New file.
	* testsuite/ld-i386/property-x86-isa1.d: Likewise.
	* testsuite/ld-i386/property-x86-isa2.d: Likewise.
	* testsuite/ld-i386/property-x86-isa3.d: Likewise.
	* testsuite/ld-x86-64/property-x86-6-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-6.d: Likewise.
	* testsuite/ld-x86-64/property-x86-6.s: Likewise.
	* testsuite/ld-x86-64/property-x86-isa1-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-isa1.d: Likewise.
	* testsuite/ld-x86-64/property-x86-isa1.s: Likewise.
	* testsuite/ld-x86-64/property-x86-isa2-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-isa2.d: Likewise.
	* testsuite/ld-x86-64/property-x86-isa3-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-isa3.d: Likewise.
	* testsuite/ld-x86-64/simple.s: Likewise.
	* ld/testsuite/ld-x86-64/x86-64.exp: Run property-x86-6,
	property-x86-6-x32, property-x86-isa1, property-x86-isa1-x32,
	property-x86-isa2, property-x86-isa2-x32, property-x86-isa3-x32
	and property-x86-isa3.
 2020-10-09 05:13:26 -07:00
H.J. Lu
74e10d1742 x86: Check static link of dynamic objects 
On Linux/x86, when -static is passed to gcc, gcc passes it to linker
before all input files suitable for creating static executable.  X86
linker will report error for dynamic input objects if -static is passed
at command-line before all input files without --dynamic-linker unless
--no-dynamic-linker is used.

bfd/

	PR ld/24920
	* elf-linker-x86.h (elf_linker_x86_params): Add
	static_before_all_inputs and has_dynamic_linker.
	* elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Report
	dynamic input objects if -static is passed at command-line
	before all input files without --dynamic-linker unless
	--no-dynamic-linker is used.

ld/

	PR ld/24920
	* emulparams/elf32_x86_64.sh: Use static.sh.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/static.sh: New file.
	* emultempl/elf-x86.em: Include "ldlex.h".
	* testsuite/ld-elf/pr24920.err: New file.
	* testsuite/ld-elf/linux-x86.exp: Run ld/24920 tests.
 2020-03-13 07:39:06 -07:00
Alan Modra
075a2b89c7 Rename elf32.em to elf.em 
* emultempl/elf32.em: Remove "misnamed" comment.  Rename to..
	* emultempl/elf.em: ..this.
	* configure.ac (elf_list_options): Adjust TEMPLATE_NAME grep.
	* emulparams/aarch64cloudabi.sh (TEMPLATE_NAME): Set to elf.
	* emulparams/aarch64elf.sh: Likewise.
	* emulparams/aarch64elf32.sh: Likewise.
	* emulparams/aarch64fbsd.sh: Likewise.
	* emulparams/aarch64linux.sh: Likewise.
	* emulparams/aarch64linux32.sh: Likewise.
	* emulparams/arcelf.sh: Likewise.
	* emulparams/arcelf_prof.sh: Likewise.
	* emulparams/arclinux.sh: Likewise.
	* emulparams/arclinux_prof.sh: Likewise.
	* emulparams/arcv2elf.sh: Likewise.
	* emulparams/arcv2elfx.sh: Likewise.
	* emulparams/armelf.sh: Likewise.
	* emulparams/armelf_fuchsia.sh: Likewise.
	* emulparams/armelf_linux.sh: Likewise.
	* emulparams/armelf_phoenix.sh: Likewise.
	* emulparams/armnto.sh: Likewise.
	* emulparams/avr1.sh: Likewise.
	* emulparams/avr2.sh: Likewise.
	* emulparams/avr25.sh: Likewise.
	* emulparams/avr3.sh: Likewise.
	* emulparams/avr31.sh: Likewise.
	* emulparams/avr35.sh: Likewise.
	* emulparams/avr4.sh: Likewise.
	* emulparams/avr5.sh: Likewise.
	* emulparams/avr51.sh: Likewise.
	* emulparams/avr6.sh: Likewise.
	* emulparams/avrtiny.sh: Likewise.
	* emulparams/avrxmega1.sh: Likewise.
	* emulparams/avrxmega2.sh: Likewise.
	* emulparams/avrxmega3.sh: Likewise.
	* emulparams/avrxmega4.sh: Likewise.
	* emulparams/avrxmega5.sh: Likewise.
	* emulparams/avrxmega6.sh: Likewise.
	* emulparams/avrxmega7.sh: Likewise.
	* emulparams/criself.sh: Likewise.
	* emulparams/crislinux.sh: Likewise.
	* emulparams/cskyelf.sh: Likewise.
	* emulparams/d10velf.sh: Likewise.
	* emulparams/elf32_sparc.sh: Likewise.
	* emulparams/elf32_spu.sh: Likewise.
	* emulparams/elf32_tic6x_le.sh: Likewise.
	* emulparams/elf32_x86_64.sh: Likewise.
	* emulparams/elf32am33lin.sh: Likewise.
	* emulparams/elf32bfin.sh: Likewise.
	* emulparams/elf32bfinfd.sh: Likewise.
	* emulparams/elf32bmip.sh: Likewise.
	* emulparams/elf32bmipn32-defs.sh: Likewise.
	* emulparams/elf32cr16.sh: Likewise.
	* emulparams/elf32cr16c.sh: Likewise.
	* emulparams/elf32crx.sh: Likewise.
	* emulparams/elf32epiphany.sh: Likewise.
	* emulparams/elf32epiphany_4x4.sh: Likewise.
	* emulparams/elf32frvfd.sh: Likewise.
	* emulparams/elf32ip2k.sh: Likewise.
	* emulparams/elf32lm32.sh: Likewise.
	* emulparams/elf32lm32fd.sh: Likewise.
	* emulparams/elf32lriscv-defs.sh: Likewise.
	* emulparams/elf32m32c.sh: Likewise.
	* emulparams/elf32mb_linux.sh: Likewise.
	* emulparams/elf32mbel_linux.sh: Likewise.
	* emulparams/elf32mcore.sh: Likewise.
	* emulparams/elf32mep.sh: Likewise.
	* emulparams/elf32metag.sh: Likewise.
	* emulparams/elf32microblaze.sh: Likewise.
	* emulparams/elf32mipswindiss.sh: Likewise.
	* emulparams/elf32or1k.sh: Likewise.
	* emulparams/elf32ppccommon.sh: Likewise.
	* emulparams/elf32rl78.sh: Likewise.
	* emulparams/elf32rx.sh: Likewise.
	* emulparams/elf32tilegx.sh: Likewise.
	* emulparams/elf32tilepro.sh: Likewise.
	* emulparams/elf32vax.sh: Likewise.
	* emulparams/elf32visium.sh: Likewise.
	* emulparams/elf32xc16x.sh: Likewise.
	* emulparams/elf32xc16xl.sh: Likewise.
	* emulparams/elf32xc16xs.sh: Likewise.
	* emulparams/elf32xstormy16.sh: Likewise.
	* emulparams/elf32xtensa.sh: Likewise.
	* emulparams/elf64_aix.sh: Likewise.
	* emulparams/elf64_ia64.sh: Likewise.
	* emulparams/elf64_s390.sh: Likewise.
	* emulparams/elf64_sparc.sh: Likewise.
	* emulparams/elf64alpha.sh: Likewise.
	* emulparams/elf64bpf.sh: Likewise.
	* emulparams/elf64hppa.sh: Likewise.
	* emulparams/elf64mmix.sh: Likewise.
	* emulparams/elf64rdos.sh: Likewise.
	* emulparams/elf64tilegx.sh: Likewise.
	* 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_iamcu.sh: Likewise.
	* emulparams/elf_k1om.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* emulparams/elf_s390.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/h8300elf.sh: Likewise.
	* emulparams/h8300elf_linux.sh: Likewise.
	* emulparams/hppa64linux.sh: Likewise.
	* emulparams/hppaelf.sh: Likewise.
	* emulparams/hppalinux.sh: Likewise.
	* emulparams/i386lynx.sh: Likewise.
	* emulparams/i386moss.sh: Likewise.
	* emulparams/i386nto.sh: Likewise.
	* emulparams/m32relf.sh: Likewise.
	* emulparams/m32relf_linux.sh: Likewise.
	* emulparams/m68hc11elf.sh: Likewise.
	* emulparams/m68hc11elfb.sh: Likewise.
	* emulparams/m68hc12elf.sh: Likewise.
	* emulparams/m68hc12elfb.sh: Likewise.
	* emulparams/m68kelf.sh: Likewise.
	* emulparams/mn10300.sh: Likewise.
	* emulparams/nds32elf.sh: Likewise.
	* emulparams/nds32elf16m.sh: Likewise.
	* emulparams/nds32elf_linux.sh: Likewise.
	* emulparams/nios2elf.sh: Likewise.
	* emulparams/nios2linux.sh: Likewise.
	* emulparams/pruelf.sh: Likewise.
	* emulparams/score3_elf.sh: Likewise.
	* emulparams/shelf.sh: Likewise.
	* emulparams/shelf_nto.sh: Likewise.
	* emulparams/shelf_vxworks.sh: Likewise.
	* emulparams/shlelf_linux.sh: Likewise.
	* emulparams/shlelf_nto.sh: Likewise.
	* emulparams/v850.sh: Likewise.
	* emulparams/v850_rh850.sh: Likewise.
	* ldelf.c: Update comment.
	* ldelf.h: Likewise.
	* emultempl/aarch64elf.em: Likewise.
	* emultempl/alphaelf.em: Likewise.
	* emultempl/arclinux.em: Likewise.
	* emultempl/armelf.em: Likewise.
	* emultempl/avrelf.em: Likewise.
	* emultempl/bfin.em: Likewise.
	* emultempl/cr16elf.em: Likewise.
	* emultempl/crxelf.em: Likewise.
	* emultempl/cskyelf.em: Likewise.
	* emultempl/elf-generic.em: Likewise.
	* emultempl/elf-x86.em: Likewise.
	* emultempl/epiphanyelf_4x4.em: Likewise.
	* emultempl/hppaelf.em: Likewise.
	* emultempl/ia64elf.em: Likewise.
	* emultempl/m68hc1xelf.em: Likewise.
	* emultempl/m68kelf.em: Likewise.
	* emultempl/metagelf.em: Likewise.
	* emultempl/mmix-elfnmmo.em: Likewise.
	* emultempl/mmixelf.em: Likewise.
	* emultempl/mmo.em: Likewise.
	* emultempl/needrelax.em: Likewise.
	* emultempl/nios2elf.em: Likewise.
	* emultempl/ppc32elf.em: Likewise.
	* emultempl/ppc64elf.em: Likewise.
	* emultempl/pruelf.em: Likewise.
	* emultempl/rxelf.em: Likewise.
	* emultempl/scoreelf.em: Likewise.
	* emultempl/spuelf.em: Likewise.
	* emultempl/tic6xdsbt.em: Likewise.
	* emultempl/v850elf.em: Likewise.
	* emultempl/vms.em: Likewise.
	* emultempl/vxworks.em: Likewise.
	* emultempl/xtensaelf.em: Likewise.
	* scripttempl/arclinux.sc: Likewise.
	* scripttempl/armbpabi.sc: Likewise.
	* scripttempl/elf.sc: Likewise.
	* scripttempl/elf64bpf.sc: Likewise.
	* scripttempl/elf64hppa.sc: Likewise.
	* scripttempl/elf_chaos.sc: Likewise.
	* scripttempl/elfarc.sc: Likewise.
	* scripttempl/elfarcv2.sc: Likewise.
	* scripttempl/elfd10v.sc: Likewise.
	* scripttempl/elfm68hc11.sc: Likewise.
	* scripttempl/elfm68hc12.sc: Likewise.
	* scripttempl/elfm9s12z.sc: Likewise.
	* scripttempl/elfxgate.sc: Likewise.
	* scripttempl/elfxtensa.sc: Likewise.
	* scripttempl/epiphany_4x4.sc: Likewise.
	* scripttempl/iq2000.sc: Likewise.
	* scripttempl/mep.sc: Likewise.
	* scripttempl/nds32elf.sc: Likewise.
	* scripttempl/v850.sc: Likewise.
	* scripttempl/v850_rh850.sc: Likewise.
	* scripttempl/xstormy16.sc: Likewise.
	* testsuite/ld-arm/arm-dyn.ld: Likewise.
	* testsuite/ld-arm/arm-lib.ld: Likewise.
	* testsuite/ld-arm/arm-no-rel-plt.ld: Likewise.
	* testsuite/ld-arm/fdpic-main.ld: Likewise.
	* testsuite/ld-arm/fdpic-shared.ld: Likewise.
	* testsuite/ld-elf/elf.exp: Likewise.
	* testsuite/ld-elf/orphan-region.d: Likewise.
	* testsuite/ld-elf/orphan.d: Likewise.
	* testsuite/ld-elf/pr349.d: Likewise.
	* testsuite/ld-elf/warn2.d: Likewise.
	* testsuite/ld-elfvsb/elf-offset.ld: Likewise.
	* testsuite/ld-mips-elf/mips-dyn.ld: Likewise.
	* testsuite/ld-mips-elf/mips-lib.ld: Likewise.
	* testsuite/ld-scripts/dynamic-sections.t: Likewise.
	* testsuite/ld-shared/elf-offset.ld: Likewise.
	* configure: Regenerate.
 2019-09-11 13:45:18 +09:30
Alan Modra
c40e31a121 Automatic makefile dependencies for generated ld/e*.c 
This patch modifies genscripts.sh to emit dependency info along with
the generated emulation e*.c files.  This is done by a new source_sh
function that records its arg to a file (.deps/e*.Tc), using the
function whenever a shell script is sourced.  Entries in the file are
made unique and written to .deps/e*.Pc.  These files are then
included by the Makefile.

	* Makefile.am (GENSCRIPTS): Pass LIB_PATH as a parameter.  Add
	DEPDIR parameter.
	(ELF_DEPS, ELF_GEN_DEPS, ELF_X86_DEPS): Delete.
	(ALL_EMULATION_SOURCES, ALL_64_EMULATION_SOURCES): Depend on
	$GEN_DEPENDS.
	(e*.c): Delete all dependencies, instead include dependencies
	from $DEPDIR/*.Pc.
	* Makefile.in: Regenerate.
	* configure.ac (source_sh): Define and use function.
	* configure: Regenerate.
	* emulparams/aarch64cloudabib.sh, * emulparams/aarch64elf32b.sh,
	* emulparams/aarch64elfb.sh, * emulparams/aarch64fbsdb.sh,
	* emulparams/aarch64linux32b.sh, * emulparams/aarch64linuxb.sh,
	* emulparams/arcelf.sh, * emulparams/arcelf_prof.sh,
	* emulparams/arclinux.sh, * emulparams/arclinux_nps.sh,
	* emulparams/arclinux_prof.sh, * emulparams/arcv2elf.sh,
	* emulparams/arcv2elfx.sh, * emulparams/armelf_fbsd.sh,
	* emulparams/armelf_linux_eabi.sh,
	* emulparams/armelf_linux_fdpiceabi.sh,
	* emulparams/armelf_nacl.sh, * emulparams/armelf_nbsd.sh,
	* emulparams/armelf_vxworks.sh, * emulparams/armelfb.sh,
	* emulparams/armelfb_fbsd.sh, * emulparams/armelfb_fuchsia.sh,
	* emulparams/armelfb_linux.sh, * emulparams/armelfb_linux_eabi.sh,
	* emulparams/armelfb_linux_fdpiceabi.sh,
	* emulparams/armelfb_nacl.sh, * emulparams/armelfb_nbsd.sh,
	* emulparams/armsymbian.sh, * emulparams/cskyelf_linux.sh,
	* emulparams/elf32_sparc_sol2.sh,
	* emulparams/elf32_sparc_vxworks.sh, * emulparams/elf32_tic6x_be.sh,
	* emulparams/elf32_tic6x_elf_be.sh,
	* emulparams/elf32_tic6x_elf_le.sh,
	* emulparams/elf32_tic6x_linux_be.sh,
	* emulparams/elf32_tic6x_linux_le.sh,
	* emulparams/elf32_x86_64.sh, * emulparams/elf32_x86_64_nacl.sh,
	* emulparams/elf32b4300.sh, * emulparams/elf32bfinfd.sh,
	* emulparams/elf32bmipn32.sh, * emulparams/elf32bsmip.sh,
	* emulparams/elf32btsmip.sh, * emulparams/elf32btsmip_fbsd.sh,
	* emulparams/elf32btsmipn32.sh, * emulparams/elf32btsmipn32_fbsd.sh,
	* emulparams/elf32ebmip.sh, * emulparams/elf32ebmipvxworks.sh,
	* emulparams/elf32elmip.sh, * emulparams/elf32elmipvxworks.sh,
	* emulparams/elf32frvfd.sh, * emulparams/elf32l4300.sh,
	* emulparams/elf32lm32fd.sh, * emulparams/elf32lmip.sh,
	* emulparams/elf32lppc.sh, * emulparams/elf32lppclinux.sh,
	* emulparams/elf32lppcnto.sh, * emulparams/elf32lppcsim.sh,
	* emulparams/elf32lr5900.sh, * emulparams/elf32lr5900n32.sh,
	* emulparams/elf32lriscv.sh, * emulparams/elf32lriscv_ilp32.sh,
	* emulparams/elf32lriscv_ilp32f.sh, * emulparams/elf32lsmip.sh,
	* emulparams/elf32ltsmip.sh, * emulparams/elf32ltsmip_fbsd.sh,
	* emulparams/elf32ltsmipn32.sh, * emulparams/elf32ltsmipn32_fbsd.sh,
	* emulparams/elf32microblazeel.sh, * emulparams/elf32or1k_linux.sh,
	* emulparams/elf32ppc.sh, * emulparams/elf32ppc_fbsd.sh,
	* emulparams/elf32ppccommon.sh, * emulparams/elf32ppclinux.sh,
	* emulparams/elf32ppcnto.sh, * emulparams/elf32ppcsim.sh,
	* emulparams/elf32ppcvxworks.sh, * emulparams/elf32ppcwindiss.sh,
	* emulparams/elf32tilegx_be.sh, * emulparams/elf64_ia64_fbsd.sh,
	* emulparams/elf64_sparc_fbsd.sh, * emulparams/elf64_sparc_sol2.sh,
	* emulparams/elf64alpha_fbsd.sh, * emulparams/elf64alpha_nbsd.sh,
	* emulparams/elf64bmip-defs.sh, * emulparams/elf64bmip.sh,
	* emulparams/elf64btsmip.sh, * emulparams/elf64btsmip_fbsd.sh,
	* emulparams/elf64lppc.sh, * emulparams/elf64lriscv-defs.sh,
	* emulparams/elf64lriscv.sh, * emulparams/elf64lriscv_lp64.sh,
	* emulparams/elf64lriscv_lp64f.sh, * emulparams/elf64ltsmip.sh,
	* emulparams/elf64ltsmip_fbsd.sh, * emulparams/elf64ppc.sh,
	* emulparams/elf64ppc_fbsd.sh, * emulparams/elf64rdos.sh,
	* emulparams/elf64tilegx_be.sh, * emulparams/elf_i386.sh,
	* emulparams/elf_i386_be.sh, * emulparams/elf_i386_fbsd.sh,
	* emulparams/elf_i386_ldso.sh, * emulparams/elf_i386_nacl.sh,
	* emulparams/elf_i386_sol2.sh, * emulparams/elf_i386_vxworks.sh,
	* emulparams/elf_iamcu.sh, * emulparams/elf_k1om.sh,
	* emulparams/elf_k1om_fbsd.sh, * emulparams/elf_l1om.sh,
	* emulparams/elf_l1om_fbsd.sh, * emulparams/elf_x86_64.sh,
	* emulparams/elf_x86_64_cloudabi.sh,
	* emulparams/elf_x86_64_fbsd.sh, * emulparams/elf_x86_64_nacl.sh,
	* emulparams/elf_x86_64_sol2.sh, * emulparams/h8300helf.sh,
	* emulparams/h8300helf_linux.sh, * emulparams/h8300hnelf.sh,
	* emulparams/h8300self.sh, * emulparams/h8300self_linux.sh,
	* emulparams/h8300snelf.sh, * emulparams/h8300sxelf.sh,
	* emulparams/h8300sxelf_linux.sh, * emulparams/h8300sxnelf.sh,
	* emulparams/hppanbsd.sh, * emulparams/hppaobsd.sh,
	* emulparams/m32rlelf.sh, * emulparams/m32rlelf_linux.sh,
	* emulparams/m68kelfnbsd.sh, * emulparams/mn10300.sh,
	* emulparams/msp430X.sh, * emulparams/nds32belf.sh,
	* emulparams/nds32belf16m.sh, * emulparams/nds32belf_linux.sh,
	* emulparams/pjlelf.sh, * emulparams/ppclynx.sh,
	* emulparams/score7_elf.sh, * emulparams/shelf_fd.sh,
	* emulparams/shelf_linux.sh, * emulparams/shelf_nbsd.sh,
	* emulparams/shelf_uclinux.sh, * emulparams/shelf_vxworks.sh,
	* emulparams/shl.sh, * emulparams/shlelf.sh,
	* emulparams/shlelf_fd.sh, * emulparams/shlelf_nbsd.sh,
	* emulparams/shlelf_vxworks.sh: Use source_sh.
	* genscripts.sh: Adjust for changed parameters.  Emit dependencies
	for e*.c to .deps/*.Pc.
	(source_sh): New function, use it throughout to source scripts.
	* genscrba.sh (source_em): Use source_sh.
 2019-04-13 12:13:22 +09:30
H.J. Lu
5b9c07b278 x86: Move x86-specific linker options to elf_linker_x86_params 
Remove x86-specific linker options from bfd_link_info and put them in
elf_linker_x86_params.  Add _bfd_elf_linker_x86_set_options to pass
x86-specific linker options from ld to bfd.

bfd/

	* elf-linker-x86.h: New file.
	* elf32-i386.c (elf_i386_convert_load_reloc): Use htab->params
	to get x86-specific linker options.
	* elf64-x86-64.c (elf_x86_64_convert_load_reloc): Likewise.
	(elf_x86_64_check_relocs): Likewise.
	(elf_x86_64_relocate_section): Likewise.
	(elf_x86_64_link_setup_gnu_properties): Likewise.
	* elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Likewise.
	(_bfd_x86_elf_link_setup_gnu_properties): Likewise.
	(_bfd_elf_linker_x86_set_options): New function.
	* elfxx-x86.h: Include "elf-linker-x86.h".
	(elf_x86_link_hash_table): Add params.

include/

	* bfdlink.h (bfd_link_info): Remove x86-specific linker options.

ld/

	* Makefile.am (ELF_X86_DEPS): Add $(srcdir)/emultempl/elf-x86.em.
	(eelf_i386_sol2.c): Also depend on
	$(srcdir)/emultempl/solaris2-x86.em.
	(eelf_x86_64_sol2.c): Likewise.
	* Makefile.in: Regenerated.
	* emulparams/call_nop.sh: Set x86-specific linker options via
	params.
	* emulparams/cet.sh: Likewise.
	* emulparams/reloc_overflow.sh: Likewise.
	* emulparams/elf32_x86_64.sh (EXTRA_EM_FILE): New.  Set to
	"elf-x86".
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_i386_be.sh: Likewise.
	* emulparams/elf_i386_chaos.sh: Likewise.
	* emulparams/elf_i386_ldso.sh: Likewise.
	* emulparams/elf_i386_vxworks.sh: Likewise.
	* emulparams/elf_iamcu.sh: Likewise.
	* emulparams/elf_k1om.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/elf_i386_sol2.sh (EXTRA_EM_FILE): Changed to
	"solaris2-x86".
	* emulparams/elf_x86_64_sol2.sh: Likewise.
	* emultempl/elf-x86.em: New file.
	* emultempl/solaris2-x86.em: Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Don't
	set link_info.call_nop_byte.
 2019-04-06 07:25:31 -07:00
H.J. Lu
ce3ad33357 ld: Add OTHER_PLT_SECTIONS 
OTHER_PLT_SECTIONS contains sections which should be placed right after
.plt section.

	* emulparams/elf32_x86_64.sh (TINY_READONLY_SECTION): Renamed
	to ...
	(OTHER_PLT_SECTIONS): This.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_iamcu.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* scripttempl/elf.sc: Place ${OTHER_PLT_SECTIONS} just after
	.plt.
 2017-11-12 07:25:36 -08:00
H.J. Lu
5c3261b0e8 ELF: Call check_relocs after opening all inputs 
For all ELF targers, call check_relocs after opening all inputs and
garbage collection.  Since the symbol resolution is known, check_relocs
can be simplified.  Also garbage collection doesn't need to undo what
check_relocs has done for symbols which have been garbage collected.
Since ELF targets never see the removed sections, gc_sweep_hook can be
removed from elf_backend_data and we can avoid GOT/PLT with garbage
collection now.

Set link_info.check_relocs_after_open_input to TRUE for all linker
targets which use ELF linker and update garbage collection tests to
remove unused GOT section.

ldemul_after_check_relocs is added for powerpc to support --secure-plt,
--bss-plt and --sdata-got.

Tested natively without regressions on i686, x86-64 and x32.  Tested
cross binutils on x86-64 without regressions for aarch64-linux,
alpha-linux, arm-linux, bfin-elf, cr16-elf, cris-elf, crx-elf, frv-linux,
hppa64-linux, hppa-linux, ia64-linux, lm32-elf, m32r-elf, m68k-linux,
mcore-elf, metag-elf, microblaze-linux, mips-linux, mmix, mn10300-elf,
nds32le-linux, nios2-linux, or1k-elf, powerpc64-linux, powerpc-linux,
riscv32-linux, riscv64-linux, s390-linux, s390x-linux, score-elf,
sh3-linux, sparc64-linux, sparc-linux, tic6x-elf, tilegx-linux,
tilepro-linux, vax-linux, x86_64-mingw32 and xtensa-linux.

bfd/

	* elf-bfd.h (elf_backend_data): Remove gc_sweep_hook.
	* elf32-arm.c (elf32_arm_gc_sweep_hook): Removed.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-bfin.c (bfin_gc_sweep_hook): Likewise.
	(bfinfdpic_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-cr16.c (elf32_cr16_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-cris.c (cris_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-hppa.c (elf32_hppa_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-lm32.c (lm32_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-m32r.c (m32r_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-m68k.c (elf_m68k_got_entry): Remove elf_m68k_gc_sweep_hook
	from comments.
	(elf_m68k_remove_got_entry_type): Removed.
	(elf_m68k_find_got_entry_ptr): Likewise.
	(elf_m68k_remove_got_entry): Likewise.
	(elf_m68k_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-mcore.c (mcore_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-metag.c (elf_metag_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-microblaze.c (elf_backend_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-mips.c (elf_backend_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-nds32.c (nds32_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-nios2.c (nios2_elf32_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-or1k.c (or1k_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-ppc.c (ppc_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-s390.c (elf_s390_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-sparc.c (elf_backend_gc_sweep_hook): Likewise.
	* elf32-tic6x.c (elf32_tic6x_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
	* elf32-tilepro.c (tilepro_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-vax.c (elf_vax_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-xtensa.c (elf_xtensa_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-alpha.c (elf64_alpha_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-mips.c (elf_backend_gc_sweep_hook): Likewise.
	* elf64-mmix.c (mmix_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-ppc.c (elf_backend_gc_sweep_hook): Likewise.
	(ppc64_elf_gc_sweep_hook): Likewise.
	* elf64-s390.c (elf_s390_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-sparc.c (elf_backend_gc_sweep_hook): Likewise.
	* elf64-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
	* elflink.c (elf_link_add_object_symbols): Don't call
	_bfd_elf_link_check_relocs here.
	(gc_sweep_hook_fn): Removed.
	(elf_gc_sweep): Remove gc_sweep_hook.
	* elfnn-aarch64.c (elfNN_aarch64_gc_sweep_hook): Removed.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfnn-riscv.c (riscv_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_gc_sweep_hook): Likewise.
	* elfxx-mips.h (_bfd_mips_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_gc_sweep_hook): Likewise.
	* elfxx-sparc.h (_bfd_sparc_elf_gc_sweep_hook): Likewise.
	* elfxx-target.h (elf_backend_gc_sweep_hook): Likewise.
	(elfNN_bed): Remove elf_backend_gc_sweep_hook.
	* elfxx-tilegx.c (tilegx_elf_gc_sweep_hook): Removed.
	* elfxx-tilegx.h (tilegx_elf_gc_sweep_hook): Likewise.

ld/

	* emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Removed.
	* emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_iamcu.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_k1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_l1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386lynx.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386moss.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386nw.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf32.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf32_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse):
	Set link_info.check_relocs_after_open_input to TRUE.
	* emultempl/armelf.em (gld${EMULATION_NAME}_before_parse):
	Likewise.
	* emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse):
	Likewise.
	* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add
	after_parse_default.
	* emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/gld960.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/gld960c.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/lnk960.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/m68kcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/sunos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/vanilla.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Always
	set link_info.check_relocs_after_open_input to TRUE.
	(ld_${EMULATION_NAME}_emulation): Add $LDEMUL_AFTER_CHECK_RELOCS.
	* emultempl/linux.em (gld${EMULATION_NAME}_before_parse):
	Set link_info.check_relocs_after_open_input to TRUE.
	(ld_${EMULATION_NAME}_emulation): Add after_check_relocs_default.
	* emultempl/mmix-elfnmmo.em (mmix_before_parse): New function.
	(LDEMUL_BEFORE_PARSE): New.
	* emultempl/mmixelf.em (elfmmix_before_parse): Replace
	gld${EMULATION_NAME}_before_parse with mmix_before_parse.
	* emultempl/ppc32elf.em (ppc_after_open): Renamed to ...
	(ppc_after_check_relocs): This.  Call after_check_relocs_default
	instead of gld${EMULATION_NAME}_after_open.
	(LDEMUL_AFTER_OPEN): Removed.
	(LDEMUL_AFTER_CHECK_RELOCS): New.
	* ldemul.c (ldemul_after_check_relocs): New.
	(after_check_relocs_default): Likewise.
	* ldemul.h (ldemul_after_check_relocs): Likewise.
	(after_check_relocs_default): Likewise.
	(ld_emulation_xfer_struct): Add after_check_relocs.
	* ldlang.c (lang_process): Call ldemul_after_check_relocs after
	lang_check_relocs.
	* testsuite/ld-aarch64/gc-got-relocs.d: Don't expect GOT section.
	* testsuite/ld-aarch64/gc-tls-relocs.d: Likewise.
	* testsuite/ld-cris/tls-gc-68.d: Likewise.
	* testsuite/ld-cris/tls-gc-69.d: Likewise.
	* testsuite/ld-cris/tls-gc-70.d: Likewise.
	* testsuite/ld-cris/tls-gc-75.d: Likewise.
	* testsuite/ld-cris/tls-gc-79.d: Likewise.
	* testsuite/ld-mmix/bpo-10.d: Don't expect .MMIX.reg_contents
	section.
 2017-10-16 03:50:13 -07:00
Alan Modra
6c19b93bcd ld whitespace fixes 
* pe-dll.c: Formatting, whitespace fixes.
	* NEWS: Whitespace fixes.
	* configure.ac: Likewise.
	* configure.tgt: Likewise.
	* deffilep.y: Likewise.
	* genscripts.sh: Likewise.
	* ld.texinfo: Likewise.
	* ldgram.y: Likewise.
	* ldlang.c: Likewise.
	* ldlex.l: Likewise.
	* lexsup.c: Likewise.
	* plugin.c: Likewise.
	* emulparams/arc-endianness.sh: Likewise.
	* emulparams/elf32_x86_64.sh: Likewise.
	* emulparams/elf64mmix.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/h8300elf.sh: Likewise.
	* emulparams/h8300elf_linux.sh: Likewise.
	* emulparams/vxworks.sh: Likewise.
	* emultempl/aarch64elf.em: Likewise.
	* emultempl/aix.em: Likewise.
	* emultempl/armelf.em: Likewise.
	* emultempl/avrelf.em: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/hppaelf.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/m68kelf.em: Likewise.
	* emultempl/metagelf.em: Likewise.
	* emultempl/msp430.em: Likewise.
	* emultempl/nds32elf.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/pep.em: Likewise.
	* emultempl/ppc64elf.em: Likewise.
	* emultempl/sh64elf.em: Likewise.
	* emultempl/spu_ovl.S: Likewise.
	* emultempl/spuelf.em: Likewise.
	* emultempl/tic6xdsbt.em: Likewise.
	* emultempl/ticoff.em: Likewise.
	* emultempl/vms.em: Likewise.
	* po/Make-in: Likewise.
	* scripttempl/DWARF.sc: Likewise.
	* scripttempl/aix.sc: Likewise.
	* scripttempl/alpha.sc: Likewise.
	* scripttempl/alphavms.sc: Likewise.
	* scripttempl/aout.sc: Likewise.
	* scripttempl/arclinux.sc: Likewise.
	* scripttempl/armaout.sc: Likewise.
	* scripttempl/armbpabi.sc: Likewise.
	* scripttempl/armcoff.sc: Likewise.
	* scripttempl/avr.sc: Likewise.
	* scripttempl/crisaout.sc: Likewise.
	* scripttempl/delta68.sc: Likewise.
	* scripttempl/dlx.sc: Likewise.
	* scripttempl/elf.sc: Likewise.
	* scripttempl/elf32cr16.sc: Likewise.
	* scripttempl/elf32cr16c.sc: Likewise.
	* scripttempl/elf32crx.sc: Likewise.
	* scripttempl/elf32msp430.sc: Likewise.
	* scripttempl/elf32msp430_3.sc: Likewise.
	* scripttempl/elf32sh-symbian.sc: Likewise.
	* scripttempl/elf32xc16x.sc: Likewise.
	* scripttempl/elf32xc16xl.sc: Likewise.
	* scripttempl/elf32xc16xs.sc: Likewise.
	* scripttempl/elf64hppa.sc: Likewise.
	* scripttempl/elf_chaos.sc: Likewise.
	* scripttempl/elfarc.sc: Likewise.
	* scripttempl/elfarcv2.sc: Likewise.
	* scripttempl/elfd10v.sc: Likewise.
	* scripttempl/elfd30v.sc: Likewise.
	* scripttempl/elfi370.sc: Likewise.
	* scripttempl/elfm68hc11.sc: Likewise.
	* scripttempl/elfm68hc12.sc: Likewise.
	* scripttempl/elfmicroblaze.sc: Likewise.
	* scripttempl/elfxgate.sc: Likewise.
	* scripttempl/elfxtensa.sc: Likewise.
	* scripttempl/epiphany_4x4.sc: Likewise.
	* scripttempl/epocpe.sc: Likewise.
	* scripttempl/h8300.sc: Likewise.
	* scripttempl/h8300h.sc: Likewise.
	* scripttempl/h8300hn.sc: Likewise.
	* scripttempl/h8300s.sc: Likewise.
	* scripttempl/h8300sn.sc: Likewise.
	* scripttempl/h8300sx.sc: Likewise.
	* scripttempl/h8300sxn.sc: Likewise.
	* scripttempl/h8500.sc: Likewise.
	* scripttempl/h8500b.sc: Likewise.
	* scripttempl/h8500c.sc: Likewise.
	* scripttempl/h8500m.sc: Likewise.
	* scripttempl/h8500s.sc: Likewise.
	* scripttempl/hppaelf.sc: Likewise.
	* scripttempl/i386beos.sc: Likewise.
	* scripttempl/i386coff.sc: Likewise.
	* scripttempl/i386go32.sc: Likewise.
	* scripttempl/i386msdos.sc: Likewise.
	* scripttempl/i860coff.sc: Likewise.
	* scripttempl/i960.sc: Likewise.
	* scripttempl/ia64vms.sc: Likewise.
	* scripttempl/ip2k.sc: Likewise.
	* scripttempl/iq2000.sc: Likewise.
	* scripttempl/m68kaux.sc: Likewise.
	* scripttempl/m68kcoff.sc: Likewise.
	* scripttempl/m88kbcs.sc: Likewise.
	* scripttempl/mcorepe.sc: Likewise.
	* scripttempl/mep.sc: Likewise.
	* scripttempl/mips.sc: Likewise.
	* scripttempl/mipsbsd.sc: Likewise.
	* scripttempl/mmo.sc: Likewise.
	* scripttempl/moxie.sc: Likewise.
	* scripttempl/nds32elf.sc: Likewise.
	* scripttempl/nw.sc: Likewise.
	* scripttempl/pe.sc: Likewise.
	* scripttempl/pep.sc: Likewise.
	* scripttempl/pj.sc: Likewise.
	* scripttempl/ppcpe.sc: Likewise.
	* scripttempl/psos.sc: Likewise.
	* scripttempl/riscix.sc: Likewise.
	* scripttempl/sh.sc: Likewise.
	* scripttempl/sparccoff.sc: Likewise.
	* scripttempl/st2000.sc: Likewise.
	* scripttempl/tic30aout.sc: Likewise.
	* scripttempl/tic30coff.sc: Likewise.
	* scripttempl/tic4xcoff.sc: Likewise.
	* scripttempl/tic54xcoff.sc: Likewise.
	* scripttempl/tic80coff.sc: Likewise.
	* scripttempl/v850.sc: Likewise.
	* scripttempl/v850_rh850.sc: Likewise.
	* scripttempl/vanilla.sc: Likewise.
	* scripttempl/visium.sc: Likewise.
	* scripttempl/w65.sc: Likewise.
	* scripttempl/xstormy16.sc: Likewise.
	* scripttempl/z80.sc: Likewise.
	* scripttempl/z8000.sc: Likewise.
	* configure: Regenerate.
 2017-10-12 23:30:43 +10:30
H.J. Lu
ee2fdd6f36 x86: Support Intel IBT with IBT property and IBT-enable PLT 
To support IBT in Intel Control-flow Enforcement Technology (CET)
instructions:

https://software.intel.com/sites/default/files/managed/4d/2a/control-flow-enforcement-technology-preview.pdf

 #define GNU_PROPERTY_X86_FEATURE_1_AND 0xc0000002

 #define GNU_PROPERTY_X86_FEATURE_1_IBT (1U << 0)

are added to GNU program properties to indicate that all executable
sections are compatible with IBT when ENDBR instruction starts each
valid target where an indirect branch instruction can land.

GNU_PROPERTY_X86_FEATURE_1_IBT is set on output only if it is set on
all relocatable inputs.

The followings changes are made to the Procedure Linkage Table (PLT):

1. For 64-bit x86-64,  PLT is changed to

PLT0:  push       GOT[1]
       bnd jmp    *GOT[2]
       nop
...
PLTn:  endbr64
       push       namen_reloc_index
       bnd jmp    PLT0

together with the second PLT section:

PLTn:  endbr64
       bnd jmp   *GOT[namen_index]
       nop

BND prefix is also added so that IBT-enabled PLT is compatible with MPX.

2. For 32-bit x86-64 (x32) and i386,  PLT is changed to

PLT0:  push       GOT[1]
       jmp        *GOT[2]
       nop
...
PLTn:  endbr64                                 # endbr32 for i386.
       push       namen_reloc_index
       jmp        PLT0

together with the second PLT section:

PLTn:  endbr64                                 # endbr32 for i386.
       jmp       *GOT[namen_index]
       nop

BND prefix isn't used since MPX isn't supported on x32 and BND registers
aren't used in parameter passing on i386.

GOT is an array of addresses.  Initially, GOT[namen_index] is filled
with the address of the ENDBR instruction of the corresponding entry
in the first PLT section.  The function, namen, is called via the
ENDBR instruction in the second PLT entry.  GOT[namen_index] is updated
to the actual address of the function, namen, at run-time.

2 linker command line options are added:

1. -z ibtplt: Generate IBT-enabled PLT.
2. -z ibt: Generate GNU_PROPERTY_X86_FEATURE_1_IBT in GNU program
properties as well as IBT-enabled PLT.

bfd/

	* elf32-i386.c (elf_i386_lazy_ibt_plt0_entry): New.
	(elf_i386_lazy_ibt_plt_entry): Likewise.
	(elf_i386_pic_lazy_ibt_plt0_entry): Likewise.
	(elf_i386_non_lazy_ibt_plt_entry): Likewise.
	(elf_i386_pic_non_lazy_ibt_plt_entry): Likewise.
	(elf_i386_eh_frame_lazy_ibt_plt): Likewise.
	(elf_i386_lazy_plt_layout): Likewise.
	(elf_i386_non_lazy_plt_layout): Likewise.
	(elf_i386_link_hash_entry): Add plt_second.
	(elf_i386_link_hash_table): Add plt_second and
	plt_second_eh_frame.
	(elf_i386_allocate_dynrelocs): Use the second PLT if needed.
	(elf_i386_size_dynamic_sections): Use .plt.got unwind info for
	the second PLT.  Check the second PLT.
	(elf_i386_relocate_section): Use the second PLT to resolve
	PLT reference if needed.
	(elf_i386_finish_dynamic_symbol): Fill and use the second PLT if
	needed.
	(elf_i386_finish_dynamic_sections): Set sh_entsize on the
	second PLT.  Generate unwind info for the second PLT.
	(elf_i386_plt_type): Add plt_second.
	(elf_i386_get_synthetic_symtab): Support the second PLT.
	(elf_i386_parse_gnu_properties): Support
	GNU_PROPERTY_X86_FEATURE_1_AND.
	(elf_i386_merge_gnu_properties): Support
	GNU_PROPERTY_X86_FEATURE_1_AND.  If info->ibt is set, turn
	on GNU_PROPERTY_X86_FEATURE_1_IBT
	(elf_i386_link_setup_gnu_properties): If info->ibt is set,
	turn on GNU_PROPERTY_X86_FEATURE_1_IBT.  Use IBT-enabled PLT
	for info->ibtplt, info->ibt or GNU_PROPERTY_X86_FEATURE_1_IBT
	is set on all relocatable inputs.
	* elf64-x86-64.c (elf_x86_64_lazy_ibt_plt_entry): New.
	(elf_x32_lazy_ibt_plt_entry): Likewise.
	(elf_x86_64_non_lazy_ibt_plt_entry): Likewise.
	(elf_x32_non_lazy_ibt_plt_entry): Likewise.
	(elf_x86_64_eh_frame_lazy_ibt_plt): Likewise.
	(elf_x32_eh_frame_lazy_ibt_plt): Likewise.
	(elf_x86_64_lazy_ibt_plt): Likewise.
	(elf_x32_lazy_ibt_plt): Likewise.
	(elf_x86_64_non_lazy_ibt_plt): Likewise.
	(elf_x32_non_lazy_ibt_plt): Likewise.
	(elf_x86_64_get_synthetic_symtab): Support the second PLT.
	(elf_x86_64_parse_gnu_properties): Support
	GNU_PROPERTY_X86_FEATURE_1_AND.
	(elf_x86_64_merge_gnu_properties): Support
	GNU_PROPERTY_X86_FEATURE_1_AND.  If info->ibt is set, turn
	on GNU_PROPERTY_X86_FEATURE_1_IBT
	(elf_x86_64_link_setup_gnu_properties): If info->ibt is set,
	turn on GNU_PROPERTY_X86_FEATURE_1_IBT.  Use IBT-enabled PLT
	for info->ibtplt, info->ibt or GNU_PROPERTY_X86_FEATURE_1_IBT
	is set on all relocatable inputs.

binutils/

	* readelf.c (decode_x86_feature): New.
	(print_gnu_property_note): Call decode_x86_feature on
	GNU_PROPERTY_X86_FEATURE_1_AND.
	* testsuite/binutils-all/i386/empty.d: New file.
	* testsuite/binutils-all/i386/empty.s: Likewise.
	* testsuite/binutils-all/i386/ibt.d: Likewise.
	* testsuite/binutils-all/i386/ibt.s: Likewise.
	* testsuite/binutils-all/x86-64/empty-x32.d: Likewise.
	* testsuite/binutils-all/x86-64/empty.d: Likewise.
	* testsuite/binutils-all/x86-64/empty.s: Likewise.
	* testsuite/binutils-all/x86-64/ibt-x32.d: Likewise.
	* testsuite/binutils-all/x86-64/ibt.d: Likewise.
	* testsuite/binutils-all/x86-64/ibt.s: Likewise.

include/

	* bfdlink.h (bfd_link_info): Add ibtplt and ibt.
	* elf/common.h (GNU_PROPERTY_X86_FEATURE_1_AND): New.
	(GNU_PROPERTY_X86_FEATURE_1_IBT): Likewise.

ld/

	* Makefile.am (ELF_X86_DEPS): Add $(srcdir)/emulparams/cet.sh.
	* Makefile.in: Regenerated.
	* NEWS: Mention GNU_PROPERTY_X86_FEATURE_1_IBT, -z ibtplt
	and -z ibt.
	* emulparams/cet.sh: New file.
	* testsuite/ld-i386/ibt-plt-1.d: Likewise.
	* testsuite/ld-i386/ibt-plt-1.s: Likewise.
	* testsuite/ld-i386/ibt-plt-2.s: Likewise.
	* testsuite/ld-i386/ibt-plt-2a.d: Likewise.
	* testsuite/ld-i386/ibt-plt-2b.d: Likewise.
	* testsuite/ld-i386/ibt-plt-2c.d: Likewise.
	* testsuite/ld-i386/ibt-plt-2d.d: Likewise.
	* testsuite/ld-i386/ibt-plt-3.s: Likewise.
	* testsuite/ld-i386/ibt-plt-3a.d: Likewise.
	* testsuite/ld-i386/ibt-plt-3b.d: Likewise.
	* testsuite/ld-i386/ibt-plt-3c.d: Likewise.
	* testsuite/ld-i386/ibt-plt-3d.d: Likewise.
	* testsuite/ld-i386/plt-main-ibt.dd: Likewise.
	* testsuite/ld-i386/plt-pie-ibt.dd: Likewise.
	* testsuite/ld-i386/property-x86-empty.s: Likewise.
	* testsuite/ld-i386/property-x86-ibt.s: Likewise.
	* testsuite/ld-i386/property-x86-ibt1a.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt1b.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt2.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt3a.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt3b.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt4.d: Likewise.
	* testsuite/ld-i386/property-x86-ibt5.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-1-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-1.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-1.s: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2.s: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2a-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2a.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2b-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2b.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2c-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2c.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2d-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-2d.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3.s: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3a-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3a.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3b-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3b.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3c-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3c.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3d-x32.d: Likewise.
	* testsuite/ld-x86-64/ibt-plt-3d.d: Likewise.
	* testsuite/ld-x86-64/plt-main-ibt-now.rd: Likewise.
	* testsuite/ld-x86-64/plt-main-ibt-x32.dd: Likewise.
	* testsuite/ld-x86-64/plt-main-ibt.dd: Likewise.
	* testsuite/ld-x86-64/property-x86-empty.s: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt.s: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt1a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt1a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt1b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt1b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt2-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt2.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt3a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt3a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt3b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt3b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt4-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt4.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt5-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-ibt5.d: Likewise.
	* emulparams/elf32_x86_64.sh: Source emulparams/cet.sh.
	(TINY_READONLY_SECTION): Add .plt.sec.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_x86_64.sh: Source emulparams/cet.sh.
	* ld.texinfo: Document -z ibtplt and -z ibt.
	* testsuite/ld-i386/i386.exp: Run IBT and IBT PLT tests.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/ld-x86-64/pr21481b.S (check): Updated for x32.
 2017-06-22 05:44:53 -07:00
H.J. Lu
59a1e29d9e X32: Place .plt.got section after .plt section 
This patch places .plt.got section after .plt section for x32.

	* emulparams/elf32_x86_64.sh (TINY_READONLY_SECTION): New.
	* testsuite/ld-x86-64/pr20830.d: Renamed to ...
	* testsuite/ld-x86-64/pr20830a.d: This.  Updated.
	* testsuite/ld-x86-64/pr20830b.d: New file.
	* testsuite/ld-x86-64/x86-64.exp: Rename pr20830 to pr20830a.
	Run pr20830b.
 2017-01-10 13:57:39 -08:00
H.J. Lu
d968975277 Check ELF relocs after opening all input files 
Delaying checking ELF relocations until opening all input files so
that symbol information is final when relocations are checked.  This
is only enabled for x86 targets.

bfd/

	* elf-bfd.h (_bfd_elf_link_check_relocs): New.
	* elflink.c (_bfd_elf_link_check_relocs): New function.
	(elf_link_add_object_symbols): Call _bfd_elf_link_check_relocs
	if check_relocs_after_open_input is FALSE.

include/

	* bfdlink.h (bfd_link_info): Add check_relocs_after_open_input.

ld/

	* emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	New.
	* emulparams/elf_i386.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse):
	Set check_relocs_after_open_input to TRUE if
	CHECK_RELOCS_AFTER_OPEN_INPUT is yes.
	(gld${EMULATION_NAME}_after_open): Call
	_bfd_elf_link_check_relocs on all inputs if
	check_relocs_after_open_input is TRUE.
 2016-04-20 05:26:51 -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
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
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
f6f6c6790a Skip directories with LIBPATH_SUFFIX_SKIP suffix 
On Linux/x86-64, when binutils is configured with --libdir=/usr/lib64,
genscripts.sh treats /usr/lib64 as the default search directory.  It
puts /usr/lib64 in linker scripts for all emulations, like

---
/* Script for -z combreloc: combine and sort reloc sections */
OUTPUT_FORMAT("elf32-i386", "elf32-i386",
	      "elf32-i386")
OUTPUT_ARCH(i386)
ENTRY(_start)
SEARCH_DIR("/usr/x86_64-redhat-linux/lib32");
SEARCH_DIR("/usr/i386-redhat-linux/lib32"); SEARCH_DIR("/usr/lib6432");
SEARCH_DIR("/usr/local/lib32"); SEARCH_DIR("/lib32");
SEARCH_DIR("/usr/lib32"); SEARCH_DIR("/usr/i386-redhat-linux/lib");
SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib");
SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
---

/usr/lib6432 is odd and /usr/lib64 is wrong.  This patch changes
genscripts.sh to check LIBPATH_SUFFIX_SKIP if it is defined.  It
skips directories with LIBPATH_SUFFIX_SKIP suffix.

	PR ld/16456
	* genscripts.sh: Don't search directory with LIBPATH_SUFFIX_SKIP
	suffix.
	* emulparams/elf32_x86_64.sh (LIBPATH_SUFFIX_SKIP): Set to 64
	for elf32_x86_64 emulation.
	* emulparams/elf_i386.sh (LIBPATH_SUFFIX_SKIP): Set to 64
	for elf_i386 emulation.
 2014-01-15 20:09:09 -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
Alan Modra
fb42df5ed9 * emultempl/elf32.em (gld${EMULATION_NAME}_add_options, 
gld${EMULATION_NAME}_handle_option, gld${EMULATION_NAME}_list_options):
	Provide --build-id, -z defs, -z muldefs, -z max-page-size,
	-z common-page-size, -z execstack, -z noexecstack for all targets.
	Add help for --exclude-libs.
	(OPTION_LD_GENERATED_UNWIND_INFO,
	OPTION_NO_LD_GENERATED_UNWIND_INFO): Move this..
	(gld${EMULATION_NAME}_handle_option): ..and code handling
	--ld-generated-unwind-info and --no-ld-generated-unwind-info..
	* emulparams/plt_unwind.sh: ..to here.  New file.  Add help.
	* emulparams/elf32_x86_64.sh: Include plt_unwind.sh.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_i386_chaos.sh: Likewise.
	* emulparams/elf_i386_ldso.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
 2011-07-14 02:38:43 +00:00
H.J. Lu
73f2a3d2e9 Change x32 LIBPATH_SUFFIX to x32. 
2011-02-16  H.J. Lu  <hongjiu.lu@intel.com>

	* emulparams/elf32_x86_64.sh (LIBPATH_SUFFIX): Changed to
	x32 for x32.
 2011-02-16 19:14:41 +00:00
H.J. Lu
351f65ca26 Add x86-64 ILP32 support. 
bfd/

2010-12-30  H.J. Lu  <hongjiu.lu@intel.com>

	* archures.c (bfd_mach_x64_32): New.
	(bfd_mach_x64_32_intel_syntax): Likewise.
	* bfd-in2.h: Regenerated.

	* config.bfd (targ64_selvecs): Add bfd_elf32_x86_64_vec for
	i[3-7]86-*-linux-*.
	(targ_selvecs): Add bfd_elf32_x86_64_vec for x86_64-*-linux-*.

	* configure.in: Support bfd_elf32_x86_64_vec.
	* configure: Regenerated.

	* cpu-i386.c (bfd_x64_32_arch_intel_syntax): New.
	(bfd_x64_32_arch): Likewise.

	* elf-bfd.h (elf_append_rela): New prototype.
	(elf_append_rel): Likewise.
	(elf64_r_info): Likewise.
	(elf32_r_info): Likewise.
	(elf64_r_sym): Likewise.
	(elf32_r_sym): Likewise.

	* elf64-x86-64.c (ABI_64_P): New.
	(elf_x86_64_info_to_howto): Replace ELF64_R_TYPE with
	ELF32_R_TYPE.  Replace ELF64_ST_TYPE with ELF_ST_TYPE.
	(elf_x86_64_check_tls_transition):Likewise.
	(elf_x86_64_check_relocs): Likewise.
	(elf_x86_64_gc_mark_hook):Likewise.
	(elf_x86_64_gc_sweep_hook): Likewise.
	(elf_x86_64_relocate_section): Likewise.
	(elf_x86_64_reloc_type_class): Likewise.
	(ELF_DYNAMIC_INTERPRETER): Renamed to ...
	(ELF64_DYNAMIC_INTERPRETER): This.
	(ELF32_DYNAMIC_INTERPRETER): New.
	(elf_x86_64_link_hash_table): Add r_info, r_sym, swap_reloca_out,
	dynamic_interpreter and dynamic_interpreter_size.
	(elf_x86_64_get_local_sym_hash): Replace ELF64_R_SYM with
	htab->r_sym.  Replace ELF64_R_INFO with htab->r_info.
	(elf_x86_64_get_local_sym_hash): Likewise.
	(elf_x86_64_check_tls_transition):Likewise.
	(elf_x86_64_check_relocs): Likewise.
	(elf_x86_64_gc_mark_hook):Likewise.
	(elf_x86_64_gc_sweep_hook): Likewise.
	(elf_x86_64_relocate_section): Likewise.
	(elf_x86_64_finish_dynamic_symbol): Likewise.
	(elf_x86_64_finish_local_dynamic_symbol): Likewise.
	(elf_x86_64_link_hash_table_create): Initialize r_info, r_sym,
	swap_reloca_out, dynamic_interpreter and dynamic_interpreter_size.
	(elf_x86_64_check_relocs): Check ABI_64_P when requesting for
	PIC.
	(elf_x86_64_relocate_section): Likewise.
	(elf64_x86_64_adjust_dynamic_symbol): Replace sizeof
	(Elf64_External_Rela) with bed->s->sizeof_rela.
	(elf64_x86_64_allocate_dynrelocs): Likewise.
	(elf64_x86_64_size_dynamic_sections): Likewise.
	(elf64_x86_64_finish_dynamic_symbol): Likewise.
	(elf64_x86_64_append_rela): Removed.
	(elf32_x86_64_elf_object_p): New.
	Add bfd_elf32_x86_64_vec.

	* elf64-x86-64.c (elf64_x86_64_xxx): Renamed to ...
	(elf_x86_64_xxx): This.

	* elflink.c (bfd_elf_final_link): Check ELF file class on error.
	(elf_append_rela): New.
	(elf_append_rel): Likewise.
	(elf64_r_info): Likewise.
	(elf32_r_info): Likewise.
	(elf64_r_sym): Likewise.
	(elf32_r_sym): Likewise.

	* targets.c (bfd_elf32_x86_64_vec): New.
	(_bfd_target_vector): Add bfd_elf32_x86_64_vec.

gas/

2010-12-30  H.J. Lu  <hongjiu.lu@intel.com>

	* config/tc-i386.c (x86_elf_abi): New.
	(i386_mach): Return bfd_mach_x64_32 for ILP32.
	(OPTION_N32): Likewise.
	(md_longopts): Add "n32" for ELF.
	(md_parse_option): Handle OPTION_N32.
	(md_show_usage): Add --n32.
	(i386_target_format): Update and check x86_elf_abi.

	* config/tc-i386.h (ELF_TARGET_FORMAT32): New.

	* doc/as.texinfo: Document --n32.
	* doc/c-i386.texi: Likewise.

gas/testsuite/

2010-12-30  H.J. Lu  <hongjiu.lu@intel.com>

	* gas/i386/ilp32/lns/ilp32.exp: New.
	* gas/i386/ilp32/lns/lns-common-1.d: Likewise.
	* gas/i386/ilp32/lns/lns-duplicate.d: Likewise.

	* gas/i386/ilp32/cfi/cfi-common-1.d: New.
	* gas/i386/ilp32/cfi/cfi-common-2.d: Likewise.
	* gas/i386/ilp32/cfi/cfi-common-3.d: Likewise.
	* gas/i386/ilp32/cfi/cfi-common-4.d: Likewise.
	* gas/i386/ilp32/cfi/cfi-common-5.d: Likewise.
	* gas/i386/ilp32/cfi/cfi-common-6.d: Likewise.
	* gas/i386/ilp32/cfi/cfi-common-7.d: Likewise.
	* gas/i386/ilp32/cfi/cfi-x86_64.d: Likewise.
	* gas/i386/ilp32/cfi/ilp32.exp: Likewise.
	* gas/i386/ilp32/elf/ehopt0.d: Likewise.
	* gas/i386/ilp32/elf/equ-reloc.d: Likewise.
	* gas/i386/ilp32/elf/file.d: Likewise.
	* gas/i386/ilp32/elf/group0a.d: Likewise.
	* gas/i386/ilp32/elf/group0b.d: Likewise.
	* gas/i386/ilp32/elf/group1a.d: Likewise.
	* gas/i386/ilp32/elf/group1b.d: Likewise.
	* gas/i386/ilp32/elf/ifunc-1.d: Likewise.
	* gas/i386/ilp32/elf/ilp32.exp: Likewise.
	* gas/i386/ilp32/elf/redef.d: Likewise.
	* gas/i386/ilp32/elf/section0.d: Likewise.
	* gas/i386/ilp32/elf/section1.d: Likewise.
	* gas/i386/ilp32/elf/section3.d: Likewise.
	* gas/i386/ilp32/elf/section4.d: Likewise.
	* gas/i386/ilp32/elf/section6.d: Likewise.
	* gas/i386/ilp32/elf/section7.d: Likewise.
	* gas/i386/ilp32/elf/struct.d: Likewise.
	* gas/i386/ilp32/elf/symtab.d: Likewise.
	* gas/i386/ilp32/elf/symver.d: Likewise.

	* gas/i386/ilp32/ilp32.exp: New.
	* gas/i386/ilp32/immed64.d: Likewise.
	* gas/i386/ilp32/mixed-mode-reloc64.d: Likewise.
	* gas/i386/ilp32/reloc64.d: Likewise.
	* gas/i386/ilp32/rex.d: Likewise.
	* gas/i386/ilp32/rexw.d: Likewise.
	* gas/i386/ilp32/svme64.d: Likewise.
	* gas/i386/ilp32/x86-64-addr32.d: Likewise.
	* gas/i386/ilp32/x86-64-addr32-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-aes.d: Likewise.
	* gas/i386/ilp32/x86-64-aes-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-amdfam10.d: Likewise.
	* gas/i386/ilp32/x86-64-arch-1.d: Likewise.
	* gas/i386/ilp32/x86-64-arch-2.d: Likewise.
	* gas/i386/ilp32/x86-64-avx.d: Likewise.
	* gas/i386/ilp32/x86-64-avx-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-avx-swap.d: Likewise.
	* gas/i386/ilp32/x86-64-avx-swap-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-branch.d: Likewise.
	* gas/i386/ilp32/x86-64-cbw.d: Likewise.
	* gas/i386/ilp32/x86-64-cbw-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-clmul.d: Likewise.
	* gas/i386/ilp32/x86-64-clmul-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-crc32.d: Likewise.
	* gas/i386/ilp32/x86-64-crc32-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-crx.d: Likewise.
	* gas/i386/ilp32/x86-64-crx-suffix.d: Likewise.
	* gas/i386/ilp32/x86-64.d: Likewise.
	* gas/i386/ilp32/x86-64-disp.d: Likewise.
	* gas/i386/ilp32/x86-64-disp-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-drx.d: Likewise.
	* gas/i386/ilp32/x86-64-drx-suffix.d: Likewise.
	* gas/i386/ilp32/x86-64-ept.d: Likewise.
	* gas/i386/ilp32/x86-64-ept-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-fma4.d: Likewise.
	* gas/i386/ilp32/x86-64-fma.d: Likewise.
	* gas/i386/ilp32/x86-64-fma-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-gidt.d: Likewise.
	* gas/i386/ilp32/x86-64-ifunc.d: Likewise.
	* gas/i386/ilp32/x86-64-intel64.d: Likewise.
	* gas/i386/ilp32/x86-64-io.d: Likewise.
	* gas/i386/ilp32/x86-64-io-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-io-suffix.d: Likewise.
	* gas/i386/ilp32/x86-64-localpic.d: Likewise.
	* gas/i386/ilp32/x86-64-mem.d: Likewise.
	* gas/i386/ilp32/x86-64-mem-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-movbe.d: Likewise.
	* gas/i386/ilp32/x86-64-movbe-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-1-core2.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-1.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-1-k8.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-1-nocona.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-1-pentium.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-2.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-3.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-4-core2.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-4.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-4-k8.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-5.d: Likewise.
	* gas/i386/ilp32/x86-64-nops-5-k8.d: Likewise.
	* gas/i386/ilp32/x86-64-nops.d: Likewise.
	* gas/i386/ilp32/x86-64-opcode.d: Likewise.
	* gas/i386/ilp32/x86-64-opcode-inval.d: Likewise.
	* gas/i386/ilp32/x86-64-opcode-inval-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-opts.d: Likewise.
	* gas/i386/ilp32/x86-64-opts-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-pcrel.d: Likewise.
	* gas/i386/ilp32/x86-64-reg.d: Likewise.
	* gas/i386/ilp32/x86-64-reg-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-rep.d: Likewise.
	* gas/i386/ilp32/x86-64-rep-suffix.d: Likewise.
	* gas/i386/ilp32/x86-64-rip.d: Likewise.
	* gas/i386/ilp32/x86-64-rip-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-sib.d: Likewise.
	* gas/i386/ilp32/x86-64-sib-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-simd.d: Likewise.
	* gas/i386/ilp32/x86-64-simd-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-simd-suffix.d: Likewise.
	* gas/i386/ilp32/x86-64-sse2avx.d: Likewise.
	* gas/i386/ilp32/x86-64-sse2avx-opts.d: Likewise.
	* gas/i386/ilp32/x86-64-sse2avx-opts-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-sse3.d: Likewise.
	* gas/i386/ilp32/x86-64-sse4_1.d: Likewise.
	* gas/i386/ilp32/x86-64-sse4_1-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-sse4_2.d: Likewise.
	* gas/i386/ilp32/x86-64-sse4_2-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-sse-check.d: Likewise.
	* gas/i386/ilp32/x86-64-sse-check-none.d: Likewise.
	* gas/i386/ilp32/x86-64-sse-check-warn.d: Likewise.
	* gas/i386/ilp32/x86-64-sse-noavx.d: Likewise.
	* gas/i386/ilp32/x86-64-ssse3.d: Likewise.
	* gas/i386/ilp32/x86-64-stack.d: Likewise.
	* gas/i386/ilp32/x86-64-stack-intel.d: Likewise.
	* gas/i386/ilp32/x86-64-stack-suffix.d: Likewise.
	* gas/i386/ilp32/x86-64-unwind.d: Likewise.
	* gas/i386/ilp32/x86-64-vmx.d: Likewise.
	* gas/i386/ilp32/x86-64-xsave.d: Likewise.
	* gas/i386/ilp32/x86-64-xsave-intel.d: Likewise.

ld/

2010-12-30  H.J. Lu  <hongjiu.lu@intel.com>

	* emulparams/elf32_x86_64.sh: New.

	* configure.tgt (targ64_extra_emuls): Add elf32_x86_64 for
	i[3-7]86-*-linux-*.
	(targ_extra_libpath): Likewise.
	(targ_extra_emuls): Add elf32_x86_64 for x86_64-*-linux-*.
	(targ_extra_libpath): Likewise.

	* Makefile.am (ALL_64_EMULATION_SOURCES): Add eelf32_x86_64.c.
	(eelf32_x86_64.c): New.
	* Makefile.in: Regenerated.

opcodes/

2010-12-30  H.J. Lu  <hongjiu.lu@intel.com>

	* i386-dis.c (print_insn): Support bfd_mach_x64_32 and
	bfd_mach_x64_32_intel_syntax.
 2010-12-31 00:33:36 +00:00