ObjFW  Check-in [a6eb951b8c]

Overview
Comment:Revert apple-forwarding-*.S back to AT&T syntax

Intel syntax is too buggy in the Apple assembler.

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Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: a6eb951b8ca202c999b862f12c6767b08a94af68263d6bd793dd97ef760b77d0
User & Date: js on 2021-01-30 20:21:50
Other Links: manifest | tags
Context
2021-01-31
15:16
of_asprintf: Fix type mismatch on LP64 systems check-in: 07f4a82038 user: js tags: trunk
2021-01-30
20:21
Revert apple-forwarding-*.S back to AT&T syntax check-in: a6eb951b8c user: js tags: trunk
2021-01-16
16:14
configure.ac: AC_PROG_INSTALL is no longer needed check-in: 4146badcdd user: js tags: trunk
2020-07-01
21:06
apple-forwarding-x86_64.S: Don't use jmp short check-in: 1a4eba3a16 user: js tags: trunk
19:57
Convert apple-forwarding-i386.S to Intel syntax check-in: aa9a770184 user: js tags: trunk
2020-06-30
22:44
Convert apple-forwarding-x86_64.S to Intel syntax check-in: fd8b23c282 user: js tags: trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified src/forwarding/apple-forwarding-i386.S from [242ac0ef8b] to [8365ab0d59].

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 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

.intel_syntax noprefix

.globl _of_forward
.globl _of_forward_stret

.section __TEXT, __cstring, cstring_literals
Lstr_forwardingTargetForSelector_:
str_forwardingTargetForSelector_:
	.asciz "forwardingTargetForSelector:"

.section __OBJC, __message_refs, literal_pointers, no_dead_strip
Lsel_forwardingTargetForSelector_:
	.long Lstr_forwardingTargetForSelector_
sel_forwardingTargetForSelector_:
	.long str_forwardingTargetForSelector_

.section __OBJC, __image_info
	.long 0, 0

.section __TEXT, __text, regular, pure_instructions
_of_forward:
	push	ebp
	mov	ebp, esp
	pushl	%ebp
	movl	%esp, %ebp

	push	ebx
	sub	esp, 20
	pushl	%ebx
	subl	$20, %esp

	call	get_eip
0:

	mov	eax, [ebp+8]
	mov	[esp], eax
	movl	8(%ebp), %eax
	movl	%eax, (%esp)
	call	_object_getClass

	mov	[esp], eax
	movl	%eax, (%esp)
	.att_syntax	/* Next line is broken in Intel syntax */
	movl	Lsel_forwardingTargetForSelector_-0b(%ebx), %eax
	movl	sel_forwardingTargetForSelector_-0b(%ebx), %eax
	.intel_syntax noprefix
	mov	[esp+4], eax
	movl	%eax, 4(%esp)
	call	_class_respondsToSelector

	test	eax, eax
	testl	%eax, %eax
	jz	0f

	mov	eax, [ebp+8]
	mov	[esp], eax
	movl	8(%ebp), %eax
	movl	%eax, (%esp)
	.att_syntax	/* Next line is broken in Intel syntax */
	movl	Lsel_forwardingTargetForSelector_-0b(%ebx), %eax
	.intel_syntax noprefix
	mov	[esp+4], eax
	mov	eax, [ebp+12]
	movl	sel_forwardingTargetForSelector_-0b(%ebx), %eax
	movl	%eax, 4(%esp)
	movl	12(%ebp), %eax
	movl	%eax, 8(%esp)
	mov	[esp+8], eax
	call	_objc_msgSend

	test	eax, eax
	testl	%eax, %eax
	jz	0f
	cmp	eax, [ebp+8]
	cmpl	8(%ebp), %eax
	je	0f

	mov	[ebp+8], eax
	movl	%eax, 8(%ebp)

	add	esp, 20
	pop	ebx
	pop	ebp
	addl	$20, %esp
	popl	%ebx
	popl	%ebp

	jmp	_objc_msgSend

0:
	add	esp, 20
	pop	ebx
	pop	ebp
	addl	$20, %esp
	popl	%ebx
	popl	%ebp

	jmp	_of_method_not_found

_of_forward_stret:
	push	ebp
	mov	ebp, esp
	pushl	%ebp
	movl	%esp, %ebp

	push	ebx
	sub	esp, 20
	pushl	%ebx
	subl	$20, %esp

	call	get_eip
0:

	mov	eax, [ebp+12]
	mov	[esp], eax
	movl	12(%ebp), %eax
	movl	%eax, (%esp)
	call	_object_getClass

	mov	[esp], eax
	movl	%eax, (%esp)
	.att_syntax	/* Next line is broken in Intel syntax */
	movl	Lsel_forwardingTargetForSelector_-0b(%ebx), %eax
	movl	sel_forwardingTargetForSelector_-0b(%ebx), %eax
	.intel_syntax noprefix
	mov	[esp+4], eax
	movl	%eax, 4(%esp)
	call	_class_respondsToSelector

	test	eax, eax
	testl	%eax, %eax
	jz	0f

	mov	eax, [ebp+12]
	mov	[esp], eax
	movl	12(%ebp), %eax
	movl	%eax, (%esp)
	.att_syntax	/* Next line is broken in Intel syntax */
	movl	Lsel_forwardingTargetForSelector_-0b(%ebx), %eax
	.intel_syntax noprefix
	mov	[esp+4], eax
	mov	eax, [ebp+16]
	movl	sel_forwardingTargetForSelector_-0b(%ebx), %eax
	movl	%eax, 4(%esp)
	movl	16(%ebp), %eax
	movl	%eax, 8(%esp)
	mov	[esp+8], eax
	call	_objc_msgSend

	test	eax, eax
	testl	%eax, %eax
	jz	0f
	cmp	eax, [ebp+12]
	cmpl	12(%ebp), %eax
	je	0f

	mov	[ebp+12], eax
	movl	%eax, 12(%ebp)

	add	esp, 20
	pop	ebx
	pop	ebp
	addl	$20, %esp
	popl	%ebx
	popl	%ebp

	jmp	_objc_msgSend_stret

0:
	add	esp, 20
	pop	ebx
	pop	ebp
	addl	$20, %esp
	popl	%ebx
	popl	%ebp

	jmp	_of_method_not_found_stret

get_eip:
	mov	ebx, [esp]
	movl	(%esp), %ebx
	ret

Modified src/forwarding/apple-forwarding-x86_64.S from [5aadb3b06b] to [65a4d4b99a].

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 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

.intel_syntax noprefix

.globl _of_forward
.globl _of_forward_stret

.section __TEXT, __objc_methname, cstring_literals
str_forwardingTargetForSelector_:
	.asciz "forwardingTargetForSelector:"

.section __DATA, __objc_selrefs, literal_pointers, no_dead_strip
sel_forwardingTargetForSelector_:
	.quad str_forwardingTargetForSelector_

.section __DATA, __objc_imageinfo, regular, no_dead_strip
	.long 0, 0

.section __TEXT, __text, regular, pure_instructions
_of_forward:
	push	rbp
	mov	rbp, rsp
	pushq	%rbp
	movq	%rsp, %rbp

	/* Save all arguments */
	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
	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)

	call	_object_getClass

	mov	rdi, rax
	mov	rsi, [rip+sel_forwardingTargetForSelector_]
	movq	%rax, %rdi
	movq	sel_forwardingTargetForSelector_(%rip), %rsi
	call	_class_respondsToSelector

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

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

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

	mov	rdi, rax
	movq	%rax, %rdi

	/* Restore all arguments, except %rdi */
	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	rax,  [rbp-0x08]
	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	-0x8(%rbp), %rax

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

	jmp	_objc_msgSend

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

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

	jmp	_of_method_not_found

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

	/* Save all arguments */
	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
	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)

	mov	rdi, rsi
	movq	%rsi, %rdi
	call	_object_getClass

	mov	rdi, rax
	mov	rsi, [rip+sel_forwardingTargetForSelector_]
	movq	%rax, %rdi
	movq	sel_forwardingTargetForSelector_(%rip), %rsi
	call	_class_respondsToSelector
	test	rax, rax
	testq	%rax, %rax
	jz	0f

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

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

	mov	rsi, rax
	movq	%rax, %rsi

	/* Restore all arguments, except %rsi */
	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	rdi,  [rbp-0x10]
	mov	rax,  [rbp-0x08]
	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	-0x10(%rbp), %rdi
	movq	-0x8(%rbp), %rax

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

	jmp	_objc_msgSend_stret

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

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

	jmp	_of_method_not_found_stret

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