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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [machine/] [i386/] [setjmp.S] - Blame information for rev 148

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Line No. Rev Author Line
1 148 jeremybenn 
/* 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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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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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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       __CLI
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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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       __STI
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        ret

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