binutils-gdb/ld/testsuite/ld-x86-64/pr22842b.S

	.text
	.globl	main
	.type	main,@function
main:
	pushq	%rax
        movslq  bar(%rip), %rax
        leaq    bar(%rip), %rdi
	addq	%rax, %rdi

	callq	foo
	xorl	%eax, %eax
	popq	%rcx
	retq

	.data
	.p2align 2
bar:
	.long	test - .

	.section	.note.GNU-stack,"",@progbits
x86-64: Use PLT address for PC-relative reloc Since PLT in PDE and PC-relative PLT in PIE can be used as function address, there is no need for dynamic PC-relative relocation against a dynamic function definition in PIE. Linker should resolve PC-relative reference to its PLT address. NB: i386 has non-PIC PLT and PIC PLT. Only non-PIC PLT in PDE can be used as function address. PIC PLT in PIE can't be used as function address. bfd/ PR ld/22842 * elf32-i386.c (elf_i386_check_relocs): Pass FALSE for non PC-relative PLT to NEED_DYNAMIC_RELOCATION_P. * elf64-x86-64.c (elf_x86_64_check_relocs): Create PLT for R_X86_64_PC32 reloc against dynamic function in data section. Pass TRUE for PC-relative PLT to NEED_DYNAMIC_RELOCATION_P. (elf_x86_64_relocate_section): Use PLT for R_X86_64_PC32 reloc against dynamic function in data section. * elfxx-x86.c (elf_x86_allocate_dynrelocs): Use PLT in PIE as function address only if pcrel_plt is true. (_bfd_x86_elf_link_hash_table_create): Set pcrel_plt. * elfxx-x86.h (NEED_DYNAMIC_RELOCATION_P): Add PCREL_PLT for PC-relative PLT. If PLT is PC-relative, don't generate dynamic PC-relative relocation against a function definition in data secton in PIE. Remove the obsolete comments. (elf_x86_link_hash_table): Add pcrel_plt. ld/ PR ld/22842 * testsuite/ld-i386/i386.exp: Run PR ld/22842 tests. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/pr22842a.c: New file. * testsuite/ld-i386/pr22842b.S: Likewise. * testsuite/ld-x86-64/pr22842a.c: Likewise. * testsuite/ld-x86-64/pr22842a.rd: Likewise. * testsuite/ld-x86-64/pr22842b.S: Likewise. * testsuite/ld-x86-64/pr22842b.rd: Likewise. 2018-02-14 19:50:40 +08:00			`.text`
			`.globl main`
			`.type main,@function`
			`main:`
			`pushq %rax`
			`movslq bar(%rip), %rax`
			`leaq bar(%rip), %rdi`
			`addq %rax, %rdi`

			`callq foo`
			`xorl %eax, %eax`
			`popq %rcx`
			`retq`

			`.data`
			`.p2align 2`
			`bar:`
			`.long test - .`

			`.section .note.GNU-stack,"",@progbits`