Artifact a61203a836e7a269173aeefc2bd468e6ec6bb47b0b9e2a9d3f2c3b8898b4cacc:
- File
src/runtime/lookup-asm/lookup-asm-x86-win32.S
— part of check-in
[0c332aa2d2]
at
2013-12-27 02:07:14
on branch trunk
— Rework forwarding API and ABI.
It matches the Apple API and ABI now and the forwarding handler itself
determines whether it should forward or not.This moves handling of +[resolve{Class,Instance}Method:] to the runtime
and allows adding new kinds of forwarding without changing the runtime.Also fixes a potential stack problem in the forwarding for MIPS. (user: js, size: 1766) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 * Jonathan Schleifer <js@webkeks.org> * * 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 .macro generate_lookup name not_found \name: movl 4(%esp), %edx testl %edx, %edx jz ret_nil movl (%edx), %edx movl 32(%edx), %edx .main_\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 .forward_\name ret .forward_\name: call get_eip .forward_L0_\name: addl $\not_found-.forward_L0_\name, %eax jmp *%eax .endm .macro generate_lookup_super name lookup \name: movl 4(%esp), %edx cmpl $0, (%edx) je ret_nil movl 4(%edx), %edx movl 32(%edx), %edx jmp .main_\lookup .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 .L0: addl $nil_method-.L0, %eax ret nil_method: xorl %eax, %eax ret get_eip: movl (%esp), %eax ret