ObjFW  Diff

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Differences From Artifact [70f37dd9e8]:

To Artifact [b420f1d31a]:

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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:
	test	rdi, rdi
	jz	short ret_nil

	bt	edi, 0
	jc	short .Ltagged_pointer_\name

	mov	r8, [rdi]
	mov	r8, [r8+64]

.Lmain_\name:
	mov	rax, [rsi]
	movzx	ecx, ah
	movzx	edx, al
#ifdef OF_SELUID24
	shr	eax, 16

	mov	r8,  [r8+rax*8]
#endif
	mov	r8,  [r8+rcx*8]
	mov	rax, [r8+rdx*8]

	test	rax, rax
	jz	short \not_found@PLT

	ret

.Ltagged_pointer_\name:
	mov	rax, [rip+objc_tagged_pointer_secret@GOTPCREL]
	xor	rdi, [rax]
	and	dil, 0xE
	movzx	r8, dil

	mov	rax, [rip+objc_tagged_pointer_classes@GOTPCREL]
	mov	r8, [rax+r8*4]
	mov	r8, [r8+64]

	jmp	short .Lmain_\name
.type \name, %function
.size \name, .-\name
.endm

.macro generate_lookup_super name lookup
\name:
	mov	r8, rdi
	mov	rdi, [rdi]
	test	rdi, rdi
	jz	short ret_nil

	mov	r8, [r8+8]
	mov	r8, [r8+64]
	jmp	short .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:
	lea	rax, [rip+nil_method]
	ret

nil_method:
	xor	rax, rax
	ret

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








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 * file.
 */

#include "config.h"

#include "platform.h"



.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

	btl	$0, %edi
	jc	.Ltagged_pointer_\name

	movq	(%rdi), %r8
	movq	64(%r8), %r8

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

	movq	(%r8,%rax,8), %r8
#endif
	movq	(%r8,%rcx,8), %r8
	movq	(%r8,%rdx,8), %rax

	testq	%rax, %rax
	jz	\not_found@PLT

	ret

.Ltagged_pointer_\name:
	movq	objc_tagged_pointer_secret@GOTPCREL(%rip), %rax
	xorq	(%rax), %rdi
	andb	$0xE, %dil
	movzbl	%dil, %r8d

	movq	objc_tagged_pointer_classes@GOTPCREL(%rip), %rax
	movq	(%rax,%r8,4), %r8
	movq	64(%r8), %r8

	jmp	.Lmain_\name
.type \name, %function
.size \name, .-\name
.endm

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

	movq	8(%r8), %r8
	movq	64(%r8), %r8
	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
	ret

nil_method:
	xorq	%rax, %rax
	ret

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