ObjFW  Check-in [6b34f309da]

Overview
Comment:Convert all x86_64/ELF ASM files to Intel syntax

GAS has decent support for Intel syntax these days, so there is little
reason to stick with AT&T syntax.

Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 6b34f309da448edf2d6cf349d364842fe618f9724a6d19fe85c9d9fdfc755350
User & Date: js on 2020-06-29 21:38:22
Other Links: manifest | tags
Context
2020-06-29
22:40
Work around older Clang not supporting jmp short check-in: d301f6fcab user: js tags: trunk
21:38
Convert all x86_64/ELF ASM files to Intel syntax check-in: 6b34f309da user: js tags: trunk
2020-06-28
15:39
Remove OF_DIRECT(_MEMBERS) where it was too much check-in: 812a46b8f6 user: js tags: trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified src/forwarding/forwarding-x86_64-elf.S from [d6c82663f6] to [1d1fc641cf].

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 * file.
 */

#include "config.h"

#include "platform.h"

.intel_syntax noprefix

.globl of_forward
.globl of_forward_stret

.section .text
of_forward:
	pushq	%rbp
	movq	%rsp, %rbp
	push	rbp
	mov	rbp, rsp

	/* Save all arguments */
	subq	$0xC0, %rsp	/* 16-byte alignment */
	movq	%rax, -0x8(%rbp)
	movq	%rdi, -0x10(%rbp)
	movq	%rsi, -0x18(%rbp)
	movq	%rdx, -0x20(%rbp)
	movq	%rcx, -0x28(%rbp)
	movq	%r8, -0x30(%rbp)
	movq	%r9, -0x38(%rbp)
	movaps	%xmm0, -0x50(%rbp)
	movaps	%xmm1, -0x60(%rbp)
	movaps	%xmm2, -0x70(%rbp)
	movaps	%xmm3, -0x80(%rbp)
	movaps	%xmm4, -0x90(%rbp)
	movaps	%xmm5, -0xA0(%rbp)
	movaps	%xmm6, -0xB0(%rbp)
	movaps	%xmm7, -0xC0(%rbp)
	sub	rsp, 0xC0	/* 16-byte alignment */
	mov	[rbp-0x08], rax
	mov	[rbp-0x10], rdi
	mov	[rbp-0x18], rsi
	mov	[rbp-0x20], rdx
	mov	[rbp-0x28], rcx
	mov	[rbp-0x30], r8
	mov	[rbp-0x38], r9
	movaps	[rbp-0x50], xmm0
	movaps	[rbp-0x60], xmm1
	movaps	[rbp-0x70], xmm2
	movaps	[rbp-0x80], xmm3
	movaps	[rbp-0x90], xmm4
	movaps	[rbp-0xA0], xmm5
	movaps	[rbp-0xB0], xmm6
	movaps	[rbp-0xC0], xmm7

	call	object_getClass@PLT

	movq	%rax, %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	mov	rdi, rax
	lea	rsi, [rip+sel_forwardingTargetForSelector_]
	call	class_respondsToSelector@PLT

	testq	%rax, %rax
	jz	0f
	test	rax, rax
	jz	short 0f

	movq	-0x10(%rbp), %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	mov	rdi, [rbp-0x10]
	lea	rsi, [rip+sel_forwardingTargetForSelector_]
	call	objc_msg_lookup@PLT

	movq	-0x10(%rbp), %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	movq	-0x18(%rbp), %rdx
	call	*%rax
	mov	rdi, [rbp-0x10]
	lea	rsi, [rip+sel_forwardingTargetForSelector_]
	mov	rdx, [rbp-0x18]
	call	rax

	testq	%rax, %rax
	jz	0f
	cmpq	-0x10(%rbp), %rax
	je	0f
	test	rax, rax
	jz	short 0f
	cmp	rax, [rbp-0x10]
	je	short 0f

	movq	%rax, -0x10(%rbp)
	mov	[rbp-0x10], rax

	movq	%rax, %rdi
	movq	-0x18(%rbp), %rsi
	mov	rdi, rax
	mov	rsi, [rbp-0x18]
	call	objc_msg_lookup@PLT
	movq	%rax, %r11
	mov	r11, rax

	/* Restore all arguments */
	movaps	-0xC0(%rbp), %xmm7
	movaps	-0xB0(%rbp), %xmm6
	movaps	-0xA0(%rbp), %xmm5
	movaps	-0x90(%rbp), %xmm4
	movaps	-0x80(%rbp), %xmm3
	movaps	-0x70(%rbp), %xmm2
	movaps	-0x60(%rbp), %xmm1
	movaps	-0x50(%rbp), %xmm0
	movq	-0x38(%rbp), %r9
	movq	-0x30(%rbp), %r8
	movq	-0x28(%rbp), %rcx
	movq	-0x20(%rbp), %rdx
	movq	-0x18(%rbp), %rsi
	movq	-0x10(%rbp), %rdi
	movq	-0x8(%rbp), %rax
	movaps	xmm7, [rbp-0xC0]
	movaps	xmm6, [rbp-0xB0]
	movaps	xmm5, [rbp-0xA0]
	movaps	xmm4, [rbp-0x90]
	movaps	xmm3, [rbp-0x80]
	movaps	xmm2, [rbp-0x70]
	movaps	xmm1, [rbp-0x60]
	movaps	xmm0, [rbp-0x50]
	mov	r9,   [rbp-0x38]
	mov	r8,   [rbp-0x30]
	mov	rcx,  [rbp-0x28]
	mov	rdx,  [rbp-0x20]
	mov	rsi,  [rbp-0x18]
	mov	rdi,  [rbp-0x10]
	mov	rax,  [rbp-0x08]

	movq	%rbp, %rsp
	popq	%rbp
	mov	rsp, rbp
	pop	rbp

	jmpq	*%r11
	jmp	r11

0:
	movq	-0x10(%rbp), %rdi
	movq	-0x18(%rbp), %rsi
	mov	rdi, [rbp-0x10]
	mov	rsi, [rbp-0x18]

	movq	%rbp, %rsp
	popq	%rbp
	mov	rsp, rbp
	pop	rbp

	jmp	of_method_not_found@PLT
.type of_forward, %function
.size of_forward, .-of_forward

of_forward_stret:
	pushq	%rbp
	movq	%rsp, %rbp
	push	rbp
	mov	rbp, rsp

	/* Save all arguments */
	subq	$0xC0, %rsp	/* 16-byte alignment */
	movq	%rax, -0x8(%rbp)
	movq	%rdi, -0x10(%rbp)
	movq	%rsi, -0x18(%rbp)
	movq	%rdx, -0x20(%rbp)
	movq	%rcx, -0x28(%rbp)
	movq	%r8, -0x30(%rbp)
	movq	%r9, -0x38(%rbp)
	movaps	%xmm0, -0x50(%rbp)
	movaps	%xmm1, -0x60(%rbp)
	movaps	%xmm2, -0x70(%rbp)
	movaps	%xmm3, -0x80(%rbp)
	movaps	%xmm4, -0x90(%rbp)
	movaps	%xmm5, -0xA0(%rbp)
	movaps	%xmm6, -0xB0(%rbp)
	movaps	%xmm7, -0xC0(%rbp)
	sub	rsp, 0xC0	/* 16-byte alignment */
	mov	[rbp-0x08], rax
	mov	[rbp-0x10], rdi
	mov	[rbp-0x18], rsi
	mov	[rbp-0x20], rdx
	mov	[rbp-0x28], rcx
	mov	[rbp-0x30], r8
	mov	[rbp-0x38], r9
	movaps	[rbp-0x50], xmm0
	movaps	[rbp-0x60], xmm1
	movaps	[rbp-0x70], xmm2
	movaps	[rbp-0x80], xmm3
	movaps	[rbp-0x90], xmm4
	movaps	[rbp-0xA0], xmm5
	movaps	[rbp-0xB0], xmm6
	movaps	[rbp-0xC0], xmm7

	movq	%rsi, %rdi
	mov	rdi, rsi
	call	object_getClass@PLT

	movq	%rax, %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	mov	rdi, rax
	lea	rsi, [rip+sel_forwardingTargetForSelector_]
	call	class_respondsToSelector@PLT

	testq	%rax, %rax
	jz	0f
	test	rax, rax
	jz	short 0f

	movq	-0x18(%rbp), %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	mov	rdi, [rbp-0x18]
	lea	rsi, [rip+sel_forwardingTargetForSelector_]
	call	objc_msg_lookup@PLT

	movq	-0x18(%rbp), %rdi
	leaq	sel_forwardingTargetForSelector_(%rip), %rsi
	movq	-0x20(%rbp), %rdx
	call	*%rax
	mov	rdi, [rbp-0x18]
	lea	rsi, [rip+sel_forwardingTargetForSelector_]
	mov	rdx, [rbp-0x20]
	call	rax

	testq	%rax, %rax
	jz	0f
	cmpq	-0x18(%rbp), %rax
	je	0f
	test	rax, rax
	jz	short 0f
	cmp	rax, [rbp-0x18]
	je	short 0f

	movq	%rax, -0x18(%rbp)
	mov	[rbp-0x18], rax

	movq	%rax, %rdi
	movq	-0x20(%rbp), %rsi
	mov	rdi, rax
	mov	rsi, [rbp-0x20]
	call	objc_msg_lookup_stret@PLT
	movq	%rax, %r11
	mov	r11, rax

	/* Restore all arguments */
	movaps	-0xC0(%rbp), %xmm7
	movaps	-0xB0(%rbp), %xmm6
	movaps	-0xA0(%rbp), %xmm5
	movaps	-0x90(%rbp), %xmm4
	movaps	-0x80(%rbp), %xmm3
	movaps	-0x70(%rbp), %xmm2
	movaps	-0x60(%rbp), %xmm1
	movaps	-0x50(%rbp), %xmm0
	movq	-0x38(%rbp), %r9
	movq	-0x30(%rbp), %r8
	movq	-0x28(%rbp), %rcx
	movq	-0x20(%rbp), %rdx
	movq	-0x18(%rbp), %rsi
	movq	-0x10(%rbp), %rdi
	movq	-0x8(%rbp), %rax
	movaps	xmm7, [rbp-0xC0]
	movaps	xmm6, [rbp-0xB0]
	movaps	xmm5, [rbp-0xA0]
	movaps	xmm4, [rbp-0x90]
	movaps	xmm3, [rbp-0x80]
	movaps	xmm2, [rbp-0x70]
	movaps	xmm1, [rbp-0x60]
	movaps	xmm0, [rbp-0x50]
	mov	r9,   [rbp-0x38]
	mov	r8,   [rbp-0x30]
	mov	rcx,  [rbp-0x28]
	mov	rdx,  [rbp-0x20]
	mov	rsi,  [rbp-0x18]
	mov	rdi,  [rbp-0x10]
	mov	rax,  [rbp-0x08]

	movq	%rbp, %rsp
	popq	%rbp
	mov	rsp, rbp
	pop	rbp

	jmpq	*%r11
	jmp	r11

0:
	movq	-0x10(%rbp), %rdi
	movq	-0x18(%rbp), %rsi
	movq	-0x20(%rbp), %rdx
	mov	rdi, [rbp-0x10]
	mov	rsi, [rbp-0x18]
	mov	rdx, [rbp-0x20]

	movq	%rbp, %rsp
	popq	%rbp
	mov	rsp, rbp
	pop	rbp

	jmp	of_method_not_found_stret@PLT
.type of_forward_stret, %function
.size of_forward_stret, .-of_forward_stret

init:
	leaq	module(%rip), %rdi
	lea	rdi, [rip+module]
	jmp	__objc_exec_class@PLT

#ifdef OF_SOLARIS
.section .init_array, "aw"
#else
.section .ctors, "aw", %progbits
#endif
︙

Modified src/runtime/lookup-asm/lookup-asm-x86_64-elf.S from [16edfd651f] to [edf654aa73].

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 * file.
 */

#include "config.h"

#include "platform.h"

.intel_syntax noprefix

.globl objc_msg_lookup
.globl objc_msg_lookup_stret
.globl objc_msg_lookup_super
.globl objc_msg_lookup_super_stret

.section .text
.macro generate_lookup name not_found
\name:
	testq	%rdi, %rdi
	jz	ret_nil
	test	rdi, rdi
	jz	short ret_nil

	movq	(%rdi), %r8
	movq	64(%r8), %r8
	mov	r8, [rdi]
	mov	r8, [r8+64]

.Lmain_\name:
	movq	(%rsi), %rax
	movzbl	%ah, %ecx
	movzbl	%al, %edx
	mov	rax, [rsi]
	movzx	ecx, ah
	movzx	edx, al
#ifdef OF_SELUID24
	shrl	$16, %eax
	shr	eax, 16

	movq	(%r8,%rax,8), %r8
	mov	r8, [r8+rax*8]
#endif
	movq	(%r8,%rcx,8), %r8
	movq	(%r8,%rdx,8), %rax
	mov	r8, [r8+rcx*8]
	mov	rax, [r8+rdx*8]

	testq	%rax, %rax
	jz	\not_found@PLT
	test	rax, rax
	jz	short \not_found@PLT

	ret
.type \name, %function
.size \name, .-\name
.endm

.macro generate_lookup_super name lookup
\name:
	movq	%rdi, %r8
	movq	(%rdi), %rdi
	testq	%rdi, %rdi
	mov	r8, rdi
	mov	rdi, [rdi]
	test	rdi, rdi
	jz	ret_nil

	movq	8(%r8), %r8
	movq	64(%r8), %r8
	mov	r8, [r8+8]
	mov	r8, [r8+64]
	jmp	.Lmain_\lookup
.type \name, %function
.size \name, .-\name
.endm

generate_lookup objc_msg_lookup objc_method_not_found
generate_lookup objc_msg_lookup_stret objc_method_not_found_stret
generate_lookup_super objc_msg_lookup_super objc_msg_lookup
generate_lookup_super objc_msg_lookup_super_stret objc_msg_lookup_stret

ret_nil:
	leaq	nil_method(%rip), %rax
	lea	rax, [rip+nil_method]
	ret

nil_method:
	xorq	%rax, %rax
	xor	rax, rax
	ret

#ifdef OF_LINUX
.section .note.GNU-stack, "", %progbits
#endif

Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
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