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https://github.com/KolibriOS/kolibrios.git
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90 lines
1.7 KiB
ArmAsm
90 lines
1.7 KiB
ArmAsm
/* This is file is a merger of SETJMP.S and LONGJMP.S */
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/*
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* This file was modified to use the __USER_LABEL_PREFIX__ and
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* __REGISTER_PREFIX__ macros defined by later versions of GNU cpp by
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* Joel Sherrill (joel@OARcorp.com)
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* Slight change: now includes i386mach.h for this (Werner Almesberger)
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*
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* Copyright (C) 1991 DJ Delorie
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms is permitted
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* provided that the above copyright notice and following paragraph are
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* duplicated in all such forms.
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*
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* This file is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/*
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** jmp_buf:
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** eax ebx ecx edx esi edi ebp esp eip
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** 0 4 8 12 16 20 24 28 32
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*/
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#include "i386mach.h"
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.global SYM (setjmp)
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.global SYM (longjmp)
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SOTYPE_FUNCTION(setjmp)
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SOTYPE_FUNCTION(longjmp)
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.def _setjmp; .scl 2; .type 32; .endef
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SYM (setjmp):
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pushl ebp
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movl esp,ebp
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pushl edi
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movl 8 (ebp),edi
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movl eax,0 (edi)
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movl ebx,4 (edi)
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movl ecx,8 (edi)
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movl edx,12 (edi)
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movl esi,16 (edi)
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movl -4 (ebp),eax
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movl eax,20 (edi)
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movl 0 (ebp),eax
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movl eax,24 (edi)
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movl esp,eax
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addl $12,eax
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movl eax,28 (edi)
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movl 4 (ebp),eax
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movl eax,32 (edi)
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popl edi
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movl $0,eax
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leave
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ret
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.def _longjmp; .scl 2; .type 32; .endef
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SYM (longjmp):
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pushl ebp
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movl esp,ebp
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movl 8(ebp),edi /* get jmp_buf */
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movl 12(ebp),eax /* store retval in j->eax */
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movl eax,0(edi)
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movl 24(edi),ebp
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movl 28(edi),esp
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pushl 32(edi)
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movl 0(edi),eax
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movl 4(edi),ebx
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movl 8(edi),ecx
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movl 12(edi),edx
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movl 16(edi),esi
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movl 20(edi),edi
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ret
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