Artifact 799d4a8d9c203804cfcc3cbd52785ed30fc6e8674be3cd65dc26a01dfc25560d:
- File
src/runtime/lookup-asm/lookup-asm-x86_64-macho.S
— part of check-in
[b57d18acaa]
at
2021-01-31 23:52:30
on branch trunk
— Revert lookup-asm-x86_64-macho.S to AT&T syntax
Intel syntax is too buggy in the Apple assembler. (user: js, size: 1828) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * 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" .globl _objc_msg_lookup .globl _objc_msg_lookup_stret .globl _objc_msg_lookup_super .globl _objc_msg_lookup_super_stret .section __TEXT, __text, regular, pure_instructions .macro generate_lookup $0: testq %rdi, %rdi jz ret_nil btl $$0, %edi jc Ltagged_pointer_$0 movq (%rdi), %r8 movq 64(%r8), %r8 Lmain_$0: movq (%rsi), %rax movzbl %ah, %ecx movzbl %al, %edx #ifdef OF_SELUID24 shrl $$16, %eax movq (%r8,%rax,8), %r8 #endif movq (%r8,%rcx,8), %r8 movq (%r8,%rdx,8), %rax testq %rax, %rax jz $1 ret Ltagged_pointer_$0: movq _objc_tagged_pointer_secret@GOTPCREL(%rip), %rax xorq (%rax), %rdi andb $$0xE, %dil movzbq %dil, %r8 movq _objc_tagged_pointer_classes@GOTPCREL(%rip), %rax movq (%rax,%r8,4), %r8 movq 64(%r8), %r8 jmp Lmain_$0 .endmacro .macro generate_lookup_super $0: movq %rdi, %r8 movq (%rdi), %rdi testq %rdi, %rdi jz ret_nil movq 8(%r8), %r8 movq 64(%r8), %r8 jmp Lmain_$1 .endmacro 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: movq %rdi, %rax ret