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/* $NetBSD: profile.h,v 1.6 1995/03/28 18:17:08 jtc Exp $ */ |
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|
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/* |
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* Copyright (c) 1992, 1993 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* This product includes software developed by the University of |
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* California, Berkeley and its contributors. |
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* 4. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* @(#)profile.h 8.1 (Berkeley) 6/11/93 |
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*/ |
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|
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/* |
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* This file is taken from Cygwin distribution. Please keep it in sync. |
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* The differences should be within __MINGW32__ guard. |
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*/ |
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/* If compiler doesn't inline, at least avoid passing args on the stack. */ |
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#define _MCOUNT_CALL __attribute__ ((regparm (2))) |
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#define _MCOUNT_DECL static __inline__ void _MCOUNT_CALL _mcount |
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|
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/* FIXME: This works, but it would be cleaner to convert mcount into an |
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assembler stub that calls an extern _mcount. |
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Older versions of GCC (pre-4.1) will still fail with regparm since the |
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compiler used %edx to store an unneeded counter variable. */ |
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|
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#define MCOUNT \ |
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void \ |
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mcount() \ |
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{ \ |
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u_long selfpc, frompcindex; \ |
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/* \ |
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* Save registers, since this may be called from \ |
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* the prologue of a regparm function. \ |
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*/ \ |
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__asm __volatile__ ("pushl %eax\n\t" \ |
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"pushl %ecx\n\t" \ |
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"pushl %edx"); \ |
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/* \ |
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* find the return address for mcount, \ |
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* and the return address for mcount's caller. \ |
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* \ |
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* selfpc = pc pushed by mcount call \ |
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*/ \ |
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/* __asm ("movl 4(%%ebp),%0" : "=r" (selfpc)); */ \ |
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selfpc = (u_long) __builtin_return_address (0); \ |
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/* \ |
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* frompcindex = pc pushed by call into self. \ |
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*/ \ |
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/* __asm ("movl (%%ebp),%0;movl 4(%0),%0" : "=r" (frompcindex)); */ \ |
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frompcindex = (u_long) __builtin_return_address (1); \ |
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_mcount(frompcindex, selfpc); \ |
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/* \ |
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* Restore registers. \ |
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*/ \ |
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__asm __volatile__ ("popl %edx\n\t" \ |
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"popl %ecx\n\t" \ |
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"popl %eax"); \ |
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} |
