Artifact 566966be6a3de0d360ff7e7dd9a7356bd984fc630c06ab23bdb49773527d0333:
- File
src/forwarding/forwarding-x86-elf.S
— part of check-in
[e26fd20d16]
at
2023-04-17 16:44:41
on branch trunk
— Use @GOT instead of @GOTOFF for non-local symbols
This makes it compile on Solaris (though exceptions don't seem to work
on Solaris). (user: js, size: 3451) [annotate] [blame] [check-ins using]
/* * Copyright (c) 2008-2023 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 OFForward .globl OFForward_stret .section .text OFForward: pushl %ebp movl %esp, %ebp pushl %ebx subl $20, %esp call getEIP addl $_GLOBAL_OFFSET_TABLE_, %ebx movl 8(%ebp), %eax movl %eax, (%esp) call object_getClass@PLT movl %eax, (%esp) leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax movl %eax, 4(%esp) call class_respondsToSelector@PLT testl %eax, %eax jz 0f movl 8(%ebp), %eax movl %eax, (%esp) leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax movl %eax, 4(%esp) call objc_msg_lookup@PLT movl 8(%ebp), %edx movl %edx, (%esp) leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %edx movl %edx, 4(%esp) movl 12(%ebp), %edx movl %edx, 8(%esp) call *%eax testl %eax, %eax jz 0f cmpl 8(%ebp), %eax je 0f movl %eax, 8(%ebp) movl %eax, (%esp) movl 12(%ebp), %eax movl %eax, 4(%esp) call objc_msg_lookup@PLT addl $20, %esp popl %ebx popl %ebp jmp *%eax 0: movl OFMethodNotFound@GOT(%ebx), %eax addl $20, %esp popl %ebx popl %ebp jmp *%eax .type OFForward, %function .size OFForward, .-OFForward OFForward_stret: pushl %ebp movl %esp, %ebp pushl %ebx subl $20, %esp call getEIP addl $_GLOBAL_OFFSET_TABLE_, %ebx movl 12(%ebp), %eax movl %eax, (%esp) call object_getClass@PLT movl %eax, (%esp) leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax movl %eax, 4(%esp) call class_respondsToSelector@PLT testl %eax, %eax jz 0f movl 12(%ebp), %eax movl %eax, (%esp) leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %eax movl %eax, 4(%esp) call objc_msg_lookup@PLT movl 12(%ebp), %edx movl %edx, (%esp) leal sel_forwardingTargetForSelector_@GOTOFF(%ebx), %edx movl %edx, 4(%esp) movl 16(%ebp), %edx movl %edx, 8(%esp) call *%eax testl %eax, %eax jz 0f cmpl 12(%ebp), %eax je 0f movl %eax, 12(%ebp) movl %eax, (%esp) movl 16(%ebp), %eax movl %eax, 4(%esp) call objc_msg_lookup_stret@PLT addl $20, %esp popl %ebx popl %ebp jmp *%eax 0: movl OFMethodNotFound_stret@GOT(%ebx), %eax addl $20, %esp popl %ebx popl %ebp jmp *%eax .type OFForward_stret, %function .size OFForward_stret, .-OFForward_stret init: pushl %ebp movl %esp, %ebp pushl %ebx subl $4, %esp call getEIP addl $_GLOBAL_OFFSET_TABLE_, %ebx leal module@GOTOFF(%ebx), %eax movl %eax, (%esp) call __objc_exec_class@PLT addl $4, %esp popl %ebx popl %ebp ret getEIP: movl (%esp), %ebx ret #ifdef OF_SOLARIS .section .init_array, "aw" #else .section .ctors, "aw", %progbits #endif .long init .section .rodata str_forwardingTargetForSelector_: .asciz "forwardingTargetForSelector:" .section .data sel_forwardingTargetForSelector_: .long str_forwardingTargetForSelector_, 0 .long 0, 0 symtab: .long 0, sel_forwardingTargetForSelector_ .short 0, 0 .long 0 .long 0 module: .long 8, 16, 0, symtab #ifdef OF_LINUX .section .note.GNU-stack, "", %progbits #endif