Artifact b420f1d31a3224fd11975e4c995e915a5150bb90ed7e246d5d9403614a6cc58d:
- File
src/runtime/lookup-asm/lookup-asm-x86_64-elf.S
— part of check-in
[8648662754]
at
2021-02-01 00:11:21
on branch trunk
— Revert lookup-asm-x86_64-elf.S back to AT&T syntax
This is for consistency with the Mach-O version. (user: js, size: 2005) [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" #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