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

1.1       nbrk        1: /*     $OpenBSD: profile.h,v 1.6 2003/06/03 01:35:30 drahn Exp $ */
                      2:
                      3: /*
                      4:  * Copyright (c) 1998 Dale Rahn.
                      5:  * All rights reserved.
                      6:  *
                      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:  *
                     17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     18:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     19:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     20:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     21:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     22:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     23:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     24:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     25:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     26:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     27:  */
                     28: #define        MCOUNT \
                     29:        __asm__(" \
                     30:                .section \".text\" \n\
                     31:                .align 2 \n\
                     32:                .globl _mcount \n\
                     33:                .type   _mcount,@function \n\
                     34:        _mcount: \n\
                     35:                lwz     11, 4(1) \n\
                     36:                mflr    0 \n\
                     37:                stw     0, 4(1) \n\
                     38:                stwu    1, -48(1) \n\
                     39:                stw     3, 8(1) \n\
                     40:                stw     4, 12(1) \n\
                     41:                stw     5, 16(1) \n\
                     42:                stw     6, 20(1) \n\
                     43:                stw     7, 24(1) \n\
                     44:                stw     8, 28(1) \n\
                     45:                stw     9, 32(1) \n\
                     46:                stw     10,36(1) \n\
                     47:                stw     11,40(1) \n\
                     48:                mr      4, 0 \n\
                     49:                mr      3, 11 \n\
                     50:                bl __mcount \n\
                     51:                lwz     3, 8(1) \n\
                     52:                lwz     4, 12(1) \n\
                     53:                lwz     5, 16(1) \n\
                     54:                lwz     6, 20(1) \n\
                     55:                lwz     7, 24(1) \n\
                     56:                lwz     8, 28(1) \n\
                     57:                lwz     9, 32(1) \n\
                     58:                lwz     10,36(1) \n\
                     59:                lwz     11,40(1) \n\
                     60:                addi    1, 1, 48 \n\
                     61:                lwz     0, 4(1) \n\
                     62:                mtlr    11 \n\
                     63:                stw     11, 4(1) \n\
                     64:                mtctr   0 \n\
                     65:                bctr \n\
                     66:        .Lfe2: \n\
                     67:                .size _mcount, .Lfe2-_mcount \n\
                     68:        ");
                     69: #define _MCOUNT_DECL static void __mcount
                     70: #ifdef _KERNEL
                     71: #define MCOUNT_ENTER                                           \
                     72:        __asm volatile("mfmsr %0" : "=r"(s));                   \
                     73:        if ((s & (PSL_IR | PSL_DR)) != (PSL_IR | PSL_DR))       \
                     74:                return; /* prof not possible in real mode */    \
                     75:        s &= ~PSL_POW;                                          \
                     76:        __asm volatile("mtmsr %0" :: "r"(s & ~PSL_EE))
                     77:
                     78: #define        MCOUNT_EXIT                                             \
                     79:        __asm volatile("mtmsr %0" :: "r"(s))
                     80: #endif /* _KERNEL */