sys/arch/sparc/include/profile.h

   1 /*      $NetBSD: profile.h,v 1.14 2005/12/11 12:19:06 christos Exp $ */
   2
   3 /*
   4  * Copyright (c) 1992, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This software was developed by the Computer Systems Engineering group
   8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
   9  * contributed to Berkeley.
  10  *
  11  * All advertising materials mentioning features or use of this software
  12  * must display the following acknowledgement:
  13  *      This product includes software developed by the University of
  14  *      California, Lawrence Berkeley Laboratory.
  15  *
  16  * Redistribution and use in source and binary forms, with or without
  17  * modification, are permitted provided that the following conditions
  18  * are met:
  19  * 1. Redistributions of source code must retain the above copyright
  20  *    notice, this list of conditions and the following disclaimer.
  21  * 2. Redistributions in binary form must reproduce the above copyright
  22  *    notice, this list of conditions and the following disclaimer in the
  23  *    documentation and/or other materials provided with the distribution.
  24  * 3. Neither the name of the University nor the names of its contributors
  25  *    may be used to endorse or promote products derived from this software
  26  *    without specific prior written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  38  * SUCH DAMAGE.
  39  *
  40  *      @(#)profile.h   8.1 (Berkeley) 6/11/93
  41  */
  42
  43 #ifdef __ELF__
  44 #define _MCOUNT_SYM "__mcount"
  45 #define _MCOUNT_ENTRY "_mcount"
  46 #else
  47 #define _MCOUNT_SYM "___mcount"
  48 #define _MCOUNT_ENTRY "mcount"
  49 #endif
  50
  51 #ifdef PIC
  52 /* Inline expansion of PICCY_SET() (see <machine/asm.h>). */
  53 #ifdef __arch64__
  54 #define MCOUNT \
  55         __asm(".global " _MCOUNT_ENTRY);\
  56         __asm(_MCOUNT_ENTRY ":");\
  57         __asm("add %o7, 8, %o1");\
  58         __asm("1: rd %pc, %o2");\
  59         __asm("add %o2," _MCOUNT_SYM "-1b, %o2");\
  60         __asm("ld [%o2], %o2");\
  61         __asm("jmpl %o2, %g0");\
  62         __asm("add %i7, 8, %o0");
  63 #else
  64 #define MCOUNT \
  65         __asm(".global " _MCOUNT_ENTRY);\
  66         __asm(_MCOUNT_ENTRY ":");\
  67         __asm("add %o7, 8, %o1");\
  68         __asm("1: call 2f; nop; 2:");\
  69         __asm("add %o7," _MCOUNT_SYM "-1b, %o2");\
  70         __asm("ld [%o2], %o2");\
  71         __asm("jmpl %o2, %g0");\
  72         __asm("add %i7, 8, %o0");
  73 #endif
  74 #else
  75 #define MCOUNT \
  76         __asm(".global " _MCOUNT_ENTRY);\
  77         __asm(_MCOUNT_ENTRY ":");\
  78         __asm("add %i7, 8, %o0");\
  79         __asm("sethi %hi(" _MCOUNT_SYM "), %o2");\
  80         __asm("jmpl %o2 + %lo(" _MCOUNT_SYM "), %g0");\
  81         __asm("add %o7, 8, %o1");
  82 #endif
  83
  84 #define _MCOUNT_DECL    static void __mcount
  85
  86 #ifdef _KERNEL
  87 /*
  88  * Block interrupts during mcount so that those interrupts can also be
  89  * counted (as soon as we get done with the current counting).  On the
  90  * SPARC, we just splhigh/splx as those do not recursively invoke mcount.
  91  */
  92 #define MCOUNT_ENTER    s = splhigh()
  93 #define MCOUNT_EXIT     splx(s)
  94 #endif /* _KERNEL */