The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/libsa/i386/setjmp.s

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*
    2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
    5  * 
    6  * This file contains Original Code and/or Modifications of Original Code
    7  * as defined in and that are subject to the Apple Public Source License
    8  * Version 2.0 (the 'License'). You may not use this file except in
    9  * compliance with the License. The rights granted to you under the License
   10  * may not be used to create, or enable the creation or redistribution of,
   11  * unlawful or unlicensed copies of an Apple operating system, or to
   12  * circumvent, violate, or enable the circumvention or violation of, any
   13  * terms of an Apple operating system software license agreement.
   14  * 
   15  * Please obtain a copy of the License at
   16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
   17  * 
   18  * The Original Code and all software distributed under the License are
   19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   23  * Please see the License for the specific language governing rights and
   24  * limitations under the License.
   25  * 
   26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
   27  */
   28 /*
   29  * @OSF_COPYRIGHT@
   30  */
   31 /* 
   32  * Mach Operating System
   33  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
   34  * All Rights Reserved.
   35  * 
   36  * Permission to use, copy, modify and distribute this software and its
   37  * documentation is hereby granted, provided that both the copyright
   38  * notice and this permission notice appear in all copies of the
   39  * software, derivative works or modified versions, and any portions
   40  * thereof, and that both notices appear in supporting documentation.
   41  * 
   42  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   43  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   44  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   45  * 
   46  * Carnegie Mellon requests users of this software to return to
   47  * 
   48  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   49  *  School of Computer Science
   50  *  Carnegie Mellon University
   51  *  Pittsburgh PA 15213-3890
   52  * 
   53  * any improvements or extensions that they make and grant Carnegie Mellon
   54  * the rights to redistribute these changes.
   55  */
   56 /*
   57  */
   58 
   59 /*
   60  * C library -- _setjmp, _longjmp
   61  *
   62  *      _longjmp(a,v)
   63  * will generate a "return(v)" from
   64  * the last call to
   65  *      _setjmp(a)
   66  * by restoring registers from the stack,
   67  * The previous signal state is NOT restored.
   68  *
   69  */
   70 
   71 #include <mach/machine/asm.h>
   72 
   73 .private_extern _setjmp
   74 .private_extern _longjmp
   75 
   76 ENTRY(setjmp)
   77         movl    4(%esp),%ecx            # fetch buffer
   78         movl    %ebx,0(%ecx)
   79         movl    %esi,4(%ecx)
   80         movl    %edi,8(%ecx)
   81         movl    %ebp,12(%ecx)           # save frame pointer of caller
   82         popl    %edx
   83         movl    %esp,16(%ecx)           # save stack pointer of caller
   84         movl    %edx,20(%ecx)           # save pc of caller
   85         xorl    %eax,%eax
   86         jmp     *%edx
   87 
   88 
   89 ENTRY(longjmp)
   90         movl    8(%esp),%eax            # return(v)
   91         movl    4(%esp),%ecx            # fetch buffer
   92         movl    0(%ecx),%ebx
   93         movl    4(%ecx),%esi
   94         movl    8(%ecx),%edi
   95         movl    12(%ecx),%ebp
   96         movl    16(%ecx),%esp
   97         orl     %eax,%eax
   98         jnz     0f
   99         incl    %eax
  100 0:      jmp     *20(%ecx)               # done, return....

Cache object: af29d5f1edd10e085b4caaff2684e84b


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.