binutils-gdb/ld/testsuite/ld-i386/no-plt-check1a.S

	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"PASS"
	.text
	.p2align 4,,15
	.globl	check
	.type	check, @function
check:
	pushl	%ebx
	call	__x86.get_pc_thunk.bx
	addl	$_GLOBAL_OFFSET_TABLE_, %ebx
	subl	$8, %esp
	call	*get_func@GOT(%ebx)
	cmpl	func@GOT(%ebx), %eax
	jne	.L3
	movl	func_p@GOT(%ebx), %edx
	cmpl	%eax, (%edx)
	jne	.L3
	call	*func@GOT(%ebx)
	cmpl	$305419896, %eax
	jne	.L3
	call	*call_func@GOT(%ebx)
	cmpl	$305419896, %eax
	jne	.L3
	leal	.LC0@GOTOFF(%ebx), %eax
	subl	$12, %esp
	pushl	%eax
	call	*puts@GOT(%ebx)
	addl	$24, %esp
	popl	%ebx
	ret
.L3:
	call	*abort@GOT(%ebx)
	.size	check, .-check
	.section	.text.__x86.get_pc_thunk.bx,"axG",@progbits,__x86.get_pc_thunk.bx,comdat
	.globl	__x86.get_pc_thunk.bx
	.hidden	__x86.get_pc_thunk.bx
	.type	__x86.get_pc_thunk.bx, @function
__x86.get_pc_thunk.bx:
	movl	(%esp), %ebx
	ret
	.section	.note.GNU-stack,"",@progbits
i386: Test external function reference without PLT To call an external function, the direct branch to the PLT entry can be replaced by an indirect branch via the GOT slot, which is similar to the first instruction in the PLT slot. Instead using the PLT slot as function address, the function address is retrieved from the GOT slot. The R_386_GOT32X relocation can be used to compute the address of the symbol’s GOT entry without base register when PIC is disabled. In non-PIC executable, call/jmp func@GOT should be used for indirect branch via the GOT slot and movl func@GOT, %eax should be used to load function address. Unlike PIC case, no register is needed to access GOT. If linker determines the function is defined locally, it converts indirect branch via the GOT slot to direct branch with a nop prefix and converts load via the GOT slot to load immediate or lea. testsuite/ld-i386/libno-plt-1b.dd: New file. * testsuite/ld-i386/libno-plt-1b.rd: Likewise. * testsuite/ld-i386/no-plt-1a.dd: Likewise. * testsuite/ld-i386/no-plt-1a.rd: Likewise. * testsuite/ld-i386/no-plt-1b.dd: Likewise. * testsuite/ld-i386/no-plt-1b.rd: Likewise. * testsuite/ld-i386/no-plt-1c.dd: Likewise. * testsuite/ld-i386/no-plt-1c.rd: Likewise. * testsuite/ld-i386/no-plt-1d.dd: Likewise. * testsuite/ld-i386/no-plt-1d.rd: Likewise. * testsuite/ld-i386/no-plt-1e.dd: Likewise. * testsuite/ld-i386/no-plt-1e.rd: Likewise. * testsuite/ld-i386/no-plt-1f.dd: Likewise. * testsuite/ld-i386/no-plt-1f.rd: Likewise. * testsuite/ld-i386/no-plt-1g.dd: Likewise. * testsuite/ld-i386/no-plt-1g.rd: Likewise. * testsuite/ld-i386/no-plt-1h.dd: Likewise. * testsuite/ld-i386/no-plt-1h.rd: Likewise. * testsuite/ld-i386/no-plt-1i.dd: Likewise. * testsuite/ld-i386/no-plt-1i.rd: Likewise. * testsuite/ld-i386/no-plt-1j.dd: Likewise. * testsuite/ld-i386/no-plt-1j.rd: Likewise. * testsuite/ld-i386/no-plt-check1a.S: Likewise. * testsuite/ld-i386/no-plt-check1b.S: Likewise. * testsuite/ld-i386/no-plt-extern1a.S: Likewise. * testsuite/ld-i386/no-plt-extern1b.S: Likewise. * testsuite/ld-i386/no-plt-func1.c: Likewise. * testsuite/ld-i386/no-plt-main1.c: Likewise. * testsuite/ld-i386/no-plt.exp: Likewise. 2016-06-09 03:41:50 +08:00			`.section .rodata.str1.1,"aMS",@progbits,1`
			`.LC0:`
			`.string "PASS"`
			`.text`
			`.p2align 4,,15`
			`.globl check`
			`.type check, @function`
			`check:`
			`pushl %ebx`
			`call __x86.get_pc_thunk.bx`
			`addl $_GLOBAL_OFFSET_TABLE_, %ebx`
			`subl $8, %esp`
			`call *get_func@GOT(%ebx)`
			`cmpl func@GOT(%ebx), %eax`
			`jne .L3`
X86: Add tests for static function pointer * testsuite/ld-i386/no-plt-check1a.S (check): Test static function pointer. * testsuite/ld-i386/no-plt-check1b.S (check): Likewise. * testsuite/ld-x86-64/no-plt-check1.S (check): Likewise. * testsuite/ld-i386/no-plt-extern1a.S (func_p): New. Static function pointer. * testsuite/ld-i386/no-plt-extern1b.S (func_p): Likewise. * testsuite/ld-x86-64/no-plt-extern1.S (func_p): Likewise. * testsuite/ld-i386/no-plt-1a.dd: Updated. * testsuite/ld-i386/no-plt-1b.dd: Likewise. * testsuite/ld-i386/no-plt-1c.dd: Likewise. * testsuite/ld-i386/no-plt-1d.dd: Likewise. * testsuite/ld-i386/no-plt-1e.dd: Likewise. * testsuite/ld-i386/no-plt-1f.dd: Likewise. * testsuite/ld-i386/no-plt-1g.dd: Likewise. * testsuite/ld-i386/no-plt-1h.dd: Likewise. * testsuite/ld-i386/no-plt-1i.dd: Likewise. * testsuite/ld-i386/no-plt-1j.dd: Likewise. * testsuite/ld-x86-64/no-plt-1a.dd: Likewise. * testsuite/ld-x86-64/no-plt-1b.dd: Likewise. * testsuite/ld-x86-64/no-plt-1c.dd: Likewise. * testsuite/ld-x86-64/no-plt-1d.dd: Likewise. * testsuite/ld-x86-64/no-plt-1e.dd: Likewise. * testsuite/ld-x86-64/no-plt-1f.dd: Likewise. * testsuite/ld-x86-64/no-plt-1g.dd: Likewise. 2016-06-16 00:44:21 +08:00			`movl func_p@GOT(%ebx), %edx`
			`cmpl %eax, (%edx)`
			`jne .L3`
i386: Test external function reference without PLT To call an external function, the direct branch to the PLT entry can be replaced by an indirect branch via the GOT slot, which is similar to the first instruction in the PLT slot. Instead using the PLT slot as function address, the function address is retrieved from the GOT slot. The R_386_GOT32X relocation can be used to compute the address of the symbol’s GOT entry without base register when PIC is disabled. In non-PIC executable, call/jmp func@GOT should be used for indirect branch via the GOT slot and movl func@GOT, %eax should be used to load function address. Unlike PIC case, no register is needed to access GOT. If linker determines the function is defined locally, it converts indirect branch via the GOT slot to direct branch with a nop prefix and converts load via the GOT slot to load immediate or lea. testsuite/ld-i386/libno-plt-1b.dd: New file. * testsuite/ld-i386/libno-plt-1b.rd: Likewise. * testsuite/ld-i386/no-plt-1a.dd: Likewise. * testsuite/ld-i386/no-plt-1a.rd: Likewise. * testsuite/ld-i386/no-plt-1b.dd: Likewise. * testsuite/ld-i386/no-plt-1b.rd: Likewise. * testsuite/ld-i386/no-plt-1c.dd: Likewise. * testsuite/ld-i386/no-plt-1c.rd: Likewise. * testsuite/ld-i386/no-plt-1d.dd: Likewise. * testsuite/ld-i386/no-plt-1d.rd: Likewise. * testsuite/ld-i386/no-plt-1e.dd: Likewise. * testsuite/ld-i386/no-plt-1e.rd: Likewise. * testsuite/ld-i386/no-plt-1f.dd: Likewise. * testsuite/ld-i386/no-plt-1f.rd: Likewise. * testsuite/ld-i386/no-plt-1g.dd: Likewise. * testsuite/ld-i386/no-plt-1g.rd: Likewise. * testsuite/ld-i386/no-plt-1h.dd: Likewise. * testsuite/ld-i386/no-plt-1h.rd: Likewise. * testsuite/ld-i386/no-plt-1i.dd: Likewise. * testsuite/ld-i386/no-plt-1i.rd: Likewise. * testsuite/ld-i386/no-plt-1j.dd: Likewise. * testsuite/ld-i386/no-plt-1j.rd: Likewise. * testsuite/ld-i386/no-plt-check1a.S: Likewise. * testsuite/ld-i386/no-plt-check1b.S: Likewise. * testsuite/ld-i386/no-plt-extern1a.S: Likewise. * testsuite/ld-i386/no-plt-extern1b.S: Likewise. * testsuite/ld-i386/no-plt-func1.c: Likewise. * testsuite/ld-i386/no-plt-main1.c: Likewise. * testsuite/ld-i386/no-plt.exp: Likewise. 2016-06-09 03:41:50 +08:00			`call *func@GOT(%ebx)`
			`cmpl $305419896, %eax`
			`jne .L3`
			`call *call_func@GOT(%ebx)`
			`cmpl $305419896, %eax`
			`jne .L3`
			`leal .LC0@GOTOFF(%ebx), %eax`
			`subl $12, %esp`
			`pushl %eax`
			`call *puts@GOT(%ebx)`
			`addl $24, %esp`
			`popl %ebx`
			`ret`
			`.L3:`
			`call *abort@GOT(%ebx)`
			`.size check, .-check`
			`.section .text.__x86.get_pc_thunk.bx,"axG",@progbits,__x86.get_pc_thunk.bx,comdat`
			`.globl __x86.get_pc_thunk.bx`
			`.hidden __x86.get_pc_thunk.bx`
			`.type __x86.get_pc_thunk.bx, @function`
			`__x86.get_pc_thunk.bx:`
			`movl (%esp), %ebx`
			`ret`
			`.section .note.GNU-stack,"",@progbits`