ia32_exception.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) 2003 Peter Wemm
    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: releng/5.4/sys/amd64/ia32/ia32_exception.S 129649 2004-05-24 11:28:11Z bde $
   27  */
   28 
   29 #include <machine/asmacros.h>
   30 
   31 #include "assym.s"
   32 
   33         .text
   34 /*
   35  * Call gate entry for FreeBSD ELF and Linux/NetBSD syscall (int 0x80)
   36  *
   37  * This is a SDT_SYSIDT entry point (unlike the i386 port) so that we
   38  * can do a swapgs before enabling interrupts.  This is critical because
   39  * if we took an interrupt before swapgs, the interrupt code would see
   40  * that it originated in supervisor mode and skip the swapgs.
   41  */
   42         SUPERALIGN_TEXT
   43 IDTVEC(int0x80_syscall)
   44         swapgs
   45         sti
   46         pushq   $2                      /* sizeof "int 0x80" */
   47         subq    $TF_ERR,%rsp            /* skip over tf_trapno */
   48         movq    %rdi,TF_RDI(%rsp)
   49         movq    %rsi,TF_RSI(%rsp)
   50         movq    %rdx,TF_RDX(%rsp)
   51         movq    %rcx,TF_RCX(%rsp)
   52         movq    %r8,TF_R8(%rsp)
   53         movq    %r9,TF_R9(%rsp)
   54         movq    %rax,TF_RAX(%rsp)
   55         movq    %rbx,TF_RBX(%rsp)
   56         movq    %rbp,TF_RBP(%rsp)
   57         movq    %r10,TF_R10(%rsp)
   58         movq    %r11,TF_R11(%rsp)
   59         movq    %r12,TF_R12(%rsp)
   60         movq    %r13,TF_R13(%rsp)
   61         movq    %r14,TF_R14(%rsp)
   62         movq    %r15,TF_R15(%rsp)
   63         FAKE_MCOUNT(TF_RIP(%rsp))
   64         call    ia32_syscall
   65         MEXITCOUNT
   66         jmp     doreti

Cache object: 0d3d5a3fd8417faf982ae05aa3d871ce

[ 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.

FreeBSD/Linux Kernel Cross Reference sys/amd64/ia32/ia32_exception.S

FreeBSD/Linux Kernel Cross Reference
sys/amd64/ia32/ia32_exception.S