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Annotation of sys/arch/mips64/include/profile.h, Revision 1.1.1.1

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_ */