binutils-gdb/ld/testsuite/ld-x86-64/pr21481b.S

	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"PASS"
	.text
	.globl	check
	.type	check, @function
check:
	subq	$8, %rsp
	call	*get_func1@GOTPCREL(%rip)
	cmpl	$func1, %eax
	jne	.L3
	movq	func1_p@GOTPCREL(%rip), %rdx
#ifdef __LP64__
	cmpq	%rax, (%rdx)
#else
	cmpl	%eax, (%rdx)
#endif
	jne	.L3
	call	*func1@GOTPCREL(%rip)
	cmpl	$1, %eax
	jne	.L3
	call	*call_func1@GOTPCREL(%rip)
	cmpl	$1, %eax
	jne	.L3
	leaq	.LC0(%rip), %rdi
	addq	$8, %rsp
	jmp	*puts@GOTPCREL(%rip)
.L3:
	call	*abort@GOTPCREL(%rip)
	.size	check, .-check
	.globl	get_func1
	.type	get_func1, @function
get_func1:
	movq	func1@GOTPCREL(%rip), %rax
	ret
	.size	get_func1, .-get_func1
	.globl	call_func1
	.type	call_func1, @function
call_func1:
	jmp	*func1@GOTPCREL(%rip)
	.size	call_func1, .-call_func1
	.globl	func1_p
	.section	.rodata,"a",@progbits
	.align 8
	.size	func1_p, 8
	.type	func1_p, @object
func1_p:
	.dc.a	func1
	.text
implementation1:
	movl	$1, %eax
	ret
	.size	implementation1, .-implementation1
	.globl	func1
	.type	func1, @gnu_indirect_function
func1:
	leaq	implementation1(%rip), %rax
	ret
	.size	func1, .-func1
	.section	.note.GNU-stack,"",@progbits
x86-64: Use .plt.bnd for IFUNC function address When -z bndplt is used, we must use the .plt.bnd entry for IFUNC function address. bfd/ PR ld/21481 * elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Use .plt.bnd for IFUNC function address. ld/ PR ld/21481 * testsuite/ld-x86-64/pr21481a.c: New file. * testsuite/ld-x86-64/pr21481b.S: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run PR ld/21481 tests. 2017-05-11 00:28:00 +08:00			`.section .rodata.str1.1,"aMS",@progbits,1`
			`.LC0:`
			`.string "PASS"`
			`.text`
			`.globl check`
			`.type check, @function`
			`check:`
			`subq $8, %rsp`
			`call *get_func1@GOTPCREL(%rip)`
			`cmpl $func1, %eax`
			`jne .L3`
			`movq func1_p@GOTPCREL(%rip), %rdx`
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 20:44:37 +08:00			`#ifdef __LP64__`
x86-64: Use .plt.bnd for IFUNC function address When -z bndplt is used, we must use the .plt.bnd entry for IFUNC function address. bfd/ PR ld/21481 * elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Use .plt.bnd for IFUNC function address. ld/ PR ld/21481 * testsuite/ld-x86-64/pr21481a.c: New file. * testsuite/ld-x86-64/pr21481b.S: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run PR ld/21481 tests. 2017-05-11 00:28:00 +08:00			`cmpq %rax, (%rdx)`
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 20:44:37 +08:00			`#else`
			`cmpl %eax, (%rdx)`
			`#endif`
x86-64: Use .plt.bnd for IFUNC function address When -z bndplt is used, we must use the .plt.bnd entry for IFUNC function address. bfd/ PR ld/21481 * elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Use .plt.bnd for IFUNC function address. ld/ PR ld/21481 * testsuite/ld-x86-64/pr21481a.c: New file. * testsuite/ld-x86-64/pr21481b.S: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run PR ld/21481 tests. 2017-05-11 00:28:00 +08:00			`jne .L3`
			`call *func1@GOTPCREL(%rip)`
			`cmpl $1, %eax`
			`jne .L3`
			`call *call_func1@GOTPCREL(%rip)`
			`cmpl $1, %eax`
			`jne .L3`
			`leaq .LC0(%rip), %rdi`
			`addq $8, %rsp`
			`jmp *puts@GOTPCREL(%rip)`
			`.L3:`
			`call *abort@GOTPCREL(%rip)`
			`.size check, .-check`
			`.globl get_func1`
			`.type get_func1, @function`
			`get_func1:`
			`movq func1@GOTPCREL(%rip), %rax`
			`ret`
			`.size get_func1, .-get_func1`
			`.globl call_func1`
			`.type call_func1, @function`
			`call_func1:`
			`jmp *func1@GOTPCREL(%rip)`
			`.size call_func1, .-call_func1`
			`.globl func1_p`
			`.section .rodata,"a",@progbits`
			`.align 8`
			`.size func1_p, 8`
			`.type func1_p, @object`
			`func1_p:`
			`.dc.a func1`
			`.text`
			`implementation1:`
			`movl $1, %eax`
			`ret`
			`.size implementation1, .-implementation1`
			`.globl func1`
			`.type func1, @gnu_indirect_function`
			`func1:`
			`leaq implementation1(%rip), %rax`
			`ret`
			`.size func1, .-func1`
			`.section .note.GNU-stack,"",@progbits`