Artifact 2020d245a7b9354f59aac664fc95b2fd3cce05e9ed0d90dfa482a5ecac5a75fe:
- File
src/runtime/lookup-asm/lookup-asm-x86-elf.S
— part of check-in
[5bf7a7f7ba]
at
2021-02-08 02:16:35
on branch trunk
— Revert lookup-asm-x86-elf.S back to AT&T syntax
This is for consistency with the Mach-O version. (user: js, size: 2298) [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: movl 4(%esp), %edx testl %edx, %edx jz ret_nil btl $0, %edx jc .Ltagged_pointer_\name movl (%edx), %edx movl 32(%edx), %edx .Lmain_\name: movl 8(%esp), %eax #ifdef OF_SELUID24 movzbl 2(%eax), %ecx movl (%edx,%ecx,4), %edx #endif movzbl 1(%eax), %ecx movl (%edx,%ecx,4), %edx movzbl (%eax), %ecx movl (%edx,%ecx,4), %eax testl %eax, %eax jz 0f ret 0: call get_eip addl $_GLOBAL_OFFSET_TABLE_, %eax lea \not_found@GOTOFF(%eax), %eax jmp *%eax .Ltagged_pointer_\name: call get_eip addl $_GLOBAL_OFFSET_TABLE_, %eax leal objc_tagged_pointer_secret@GOTOFF(%eax), %ecx xorl (%ecx), %edx andb $0xE, %dl movzbl %dl, %edx leal objc_tagged_pointer_classes@GOTOFF(%eax), %eax movl (%eax,%edx,2), %edx movl 32(%edx), %edx jmp .Lmain_\name .type \name, %function .size \name, .-\name .endm .macro generate_lookup_super name lookup \name: movl 4(%esp), %edx movl (%edx), %eax testl %eax, %eax jz ret_nil movl %eax, 4(%esp) mov 4(%edx), %edx mov 32(%edx), %edx 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: call get_eip addl $_GLOBAL_OFFSET_TABLE_, %eax leal nil_method@GOTOFF(%eax), %eax ret nil_method: xorl %eax, %eax ret get_eip: movl (%esp), %eax ret #ifdef OF_LINUX .section .note.GNU-stack, "", %progbits #endif