1 /* $OpenBSD: profile.h,v 1.2 2013/03/02 22:42:48 miod Exp $ */ 2 /* $NetBSD: profile.h,v 1.5 2006/10/26 23:54:28 uwe Exp $ */ 3 4 /*- 5 * Copyright (c) 2000 Tsubai Masanari. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #if defined(__ELF__) 31 #define _MCOUNT_DECL static void _mcount 32 #else 33 #define _MCOUNT_DECL static void mcount 34 #endif 35 36 #define MCOUNT __asm (" \n\ 37 .text \n\ 38 .align 2 \n\ 39 .globl __mcount \n\ 40 __mcount: \n\ 41 mov.l r4, @-r15 \n\ 42 mov.l r5, @-r15 \n\ 43 mov.l r6, @-r15 \n\ 44 mov.l r7, @-r15 \n\ 45 mov.l r0, @-r15 \n\ 46 mov.l r14, @-r15 \n\ 47 sts.l pr, @-r15 \n\ 48 mov r15, r14 \n\ 49 \n\ 50 mov.l 1f, r1 ! _mcount \n\ 51 sts pr, r4 ! frompc \n\ 52 0: bsrf r1 \n\ 53 mov r0, r5 ! selfpc \n\ 54 \n\ 55 mov r14, r15 \n\ 56 lds.l @r15+, pr \n\ 57 mov.l @r15+, r14 \n\ 58 mov.l @r15+, r0 \n\ 59 mov.l @r15+, r7 \n\ 60 mov.l @r15+, r6 \n\ 61 mov.l @r15+, r5 \n\ 62 jmp @r0 ! real function \n\ 63 mov.l @r15+, r4 \n\ 64 \n\ 65 .align 2 \n\ 66 1: .long _mcount - ((0b) + 4) \n\ 67 \n\ 68 .size __mcount, . - __mcount "); 69 70 #ifdef _KERNEL 71 #define MCOUNT_ENTER s = splhigh() 72 #define MCOUNT_EXIT splx(s) 73 #endif 74