diff options
Diffstat (limited to 'sys/arch/i386/include/profile.h')
| -rw-r--r-- | sys/arch/i386/include/profile.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/sys/arch/i386/include/profile.h b/sys/arch/i386/include/profile.h new file mode 100644 index 00000000000..163ff3afc17 --- /dev/null +++ b/sys/arch/i386/include/profile.h @@ -0,0 +1,67 @@ +/* $NetBSD: profile.h,v 1.6 1995/03/28 18:17:08 jtc Exp $ */ + +/* + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)profile.h 8.1 (Berkeley) 6/11/93 + */ + +#define _MCOUNT_DECL static inline void _mcount + +#define MCOUNT \ +extern void mcount() asm("mcount"); \ +void \ +mcount() \ +{ \ + int selfpc, frompcindex; \ + /* \ + * find the return address for mcount, \ + * and the return address for mcount's caller. \ + * \ + * selfpc = pc pushed by mcount call \ + */ \ + asm("movl 4(%%ebp),%0" : "=r" (selfpc)); \ + /* \ + * frompcindex = pc pushed by call into self. \ + */ \ + asm("movl (%%ebp),%0;movl 4(%0),%0" : "=r" (frompcindex)); \ + _mcount(frompcindex, selfpc); \ +} + +#ifdef _KERNEL +/* + * Note that we assume splhigh() and splx() cannot call mcount() + * recursively. + */ +#define MCOUNT_ENTER s = splhigh() +#define MCOUNT_EXIT splx(s) +#endif /* _KERNEL */ |