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Annotation of sys/arch/amd64/include/profile.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: profile.h,v 1.3 2006/10/28 16:20:04 kettenis Exp $    */
                      2: /*     $NetBSD: profile.h,v 1.3 2003/11/28 23:22:45 fvdl Exp $ */
                      3:
                      4: /*
                      5:  * Copyright (c) 1992, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. Neither the name of the University nor the names of its contributors
                     17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  *
                     32:  *     @(#)profile.h   8.1 (Berkeley) 6/11/93
                     33:  */
                     34:
                     35: #define        _MCOUNT_DECL void _mcount
                     36:
                     37: #ifdef PIC
                     38: #define __MCPLT        "@PLT"
                     39: #else
                     40: #define __MCPLT
                     41: #endif
                     42:
                     43: #define        MCOUNT                                          \
                     44: __asm(" .globl __mcount                \n"                     \
                     45: "      .type __mcount,@function\n"                     \
                     46: "__mcount:                     \n"                     \
                     47: "      pushq   %rbp            \n"                     \
                     48: "      movq    %rsp,%rbp       \n"                     \
                     49: "      subq    $56,%rsp        \n"                     \
                     50: "      movq    %rdi,0(%rsp)    \n"                     \
                     51: "      movq    %rsi,8(%rsp)    \n"                     \
                     52: "      movq    %rdx,16(%rsp)   \n"                     \
                     53: "      movq    %rcx,24(%rsp)   \n"                     \
                     54: "      movq    %r8,32(%rsp)    \n"                     \
                     55: "      movq    %r9,40(%rsp)    \n"                     \
                     56: "      movq    %rax,48(%rsp)   \n"                     \
                     57: "      movq    0(%rbp),%r11    \n"                     \
                     58: "      movq    8(%r11),%rdi    \n"                     \
                     59: "      movq    8(%rbp),%rsi    \n"                     \
                     60: "      call    _mcount"__MCPLT"\n"                     \
                     61: "      movq    0(%rsp),%rdi    \n"                     \
                     62: "      movq    8(%rsp),%rsi    \n"                     \
                     63: "      movq    16(%rsp),%rdx   \n"                     \
                     64: "      movq    24(%rsp),%rcx   \n"                     \
                     65: "      movq    32(%rsp),%r8    \n"                     \
                     66: "      movq    40(%rsp),%r9    \n"                     \
                     67: "      movq    48(%rsp),%rax   \n"                     \
                     68: "      leave                   \n"                     \
                     69: "      ret                     \n"                     \
                     70: "      .size __mcount,.-__mcount");
                     71:
                     72:
                     73: #ifdef _KERNEL
                     74: #define MCOUNT_ENTER   (void)&s; __asm__("cli");
                     75: #define MCOUNT_EXIT    __asm__("sti");
                     76: #endif /* _KERNEL */