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Annotation of sys/arch/mips64/include/profile.h, Revision 1.1

1.1     ! nbrk        1: /*      $OpenBSD: profile.h,v 1.2 2005/08/07 07:29:44 miod Exp $       */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1992, 1993
        !             5:  *     The Regents of the University of California.  All rights reserved.
        !             6:  *
        !             7:  * This code is derived from software contributed to Berkeley by
        !             8:  * Ralph Campbell.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  * 3. Neither the name of the University nor the names of its contributors
        !            19:  *    may be used to endorse or promote products derived from this software
        !            20:  *    without specific prior written permission.
        !            21:  *
        !            22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            32:  * SUCH DAMAGE.
        !            33:  *
        !            34:  *     from: @(#)profile.h     8.1 (Berkeley) 6/10/93
        !            35:  */
        !            36: #ifndef        _MIPS_PROFILE_H_
        !            37: #define        _MIPS_PROFILE_H_
        !            38:
        !            39: #define        _MCOUNT_DECL static void ___mcount
        !            40:
        !            41: /*XXX The cprestore instruction is a "dummy" to shut up as(1). */
        !            42:
        !            43: #define        MCOUNT \
        !            44:        __asm(".globl _mcount;"         \
        !            45:        ".type _mcount,@function;"      \
        !            46:        "_mcount:;"                     \
        !            47:        ".set noreorder;"               \
        !            48:        ".set noat;"                    \
        !            49:        ".cpload $25;"                  \
        !            50:        ".cprestore 4;"                 \
        !            51:        "sw $4,8($29);"                 \
        !            52:        "sw $5,12($29);"                \
        !            53:        "sw $6,16($29);"                \
        !            54:        "sw $7,20($29);"                \
        !            55:        "sw $1,0($29);"                 \
        !            56:        "sw $31,4($29);"                \
        !            57:        "move $5,$31;"                  \
        !            58:        "jal ___mcount;"                \
        !            59:        "move $4,$1;"                   \
        !            60:        "lw $4,8($29);"                 \
        !            61:        "lw $5,12($29);"                \
        !            62:        "lw $6,16($29);"                \
        !            63:        "lw $7,20($29);"                \
        !            64:        "lw $31,4($29);"                \
        !            65:        "lw $1,0($29);"                 \
        !            66:        "addu $29,$29,8;"               \
        !            67:        "j $31;"                        \
        !            68:        "move $31,$1;"                  \
        !            69:        ".set reorder;"                 \
        !            70:        ".set at");
        !            71:
        !            72: #ifdef _KERNEL
        !            73: /*
        !            74:  * The following two macros do splhigh and splx respectively.
        !            75:  * They have to be defined this way because these are real
        !            76:  * functions on the MIPS, and we do not want to invoke mcount
        !            77:  * recursively.
        !            78:  */
        !            79: #define        MCOUNT_ENTER    s = _splhigh()
        !            80:
        !            81: #define        MCOUNT_EXIT     _splx(s)
        !            82: #endif /* _KERNEL */
        !            83:
        !            84: #endif /* !_MIPS_PROFILE_H_ */