ia32_sigtramp.c

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    1 /*-
    2  * Copyright (c) 2002 Doug Rabson
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 
   29 char ia32_sigcode[] = {
   30         0xff, 0x54, 0x24, 0x10,         /* call *SIGF_HANDLER(%esp) */
   31         0x8d, 0x44, 0x24, 0x14,         /* lea SIGF_UC(%esp),%eax */
   32         0x50,                           /* pushl %eax */
   33         0xf7, 0x40, 0x54, 0x00, 0x00, 0x02, 0x02, /* testl $PSL_VM,UC_EFLAGS(%eax) */
   34         0x75, 0x03,                     /* jne 9f */
   35         0x8e, 0x68, 0x14,               /* movl UC_GS(%eax),%gs */
   36         0xb8, 0x57, 0x01, 0x00, 0x00,   /* 9: movl $SYS_sigreturn,%eax */
   37         0x50,                           /* pushl %eax */
   38         0xcd, 0x80,                     /* int $0x80 */
   39         0xeb, 0xfe,                     /* 0: jmp 0b */
   40         0
   41 };
   42 int sz_ia32_sigcode = sizeof(ia32_sigcode);

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FreeBSD/Linux Kernel Cross Reference sys/ia64/ia32/ia32_sigtramp.c

FreeBSD/Linux Kernel Cross Reference
sys/ia64/ia32/ia32_sigtramp.c