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glibc  2.9
machine-gmon.h
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00001 /* i386-specific implementation of profiling support.
00002    Copyright (C) 1997, 2002 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
00005 
00006    The GNU C Library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Lesser General Public
00008    License as published by the Free Software Foundation; either
00009    version 2.1 of the License, or (at your option) any later version.
00010 
00011    The GNU C Library is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014    Lesser General Public License for more details.
00015 
00016    You should have received a copy of the GNU Lesser General Public
00017    License along with the GNU C Library; if not, write to the Free
00018    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00019    02111-1307 USA.  */
00020 
00021 #include <sysdep.h>
00022 
00023 /* We need a special version of the `mcount' function since for ix86 it
00024    must not clobber any register.  This has several reasons:
00025      - there is a bug in gcc as of version 2.7.2.2 which prohibits the
00026        use of profiling together with nested functions
00027      - the ELF `fixup' function uses GCC's regparm feature
00028      - some (future) systems might want to pass parameters in registers.  */
00029 
00030 /* We must not pollute the global namespace.  */
00031 #define mcount_internal __mcount_internal
00032 
00033 extern void mcount_internal (u_long frompc, u_long selfpc) internal_function;
00034 
00035 #define _MCOUNT_DECL(frompc, selfpc) \
00036 void internal_function mcount_internal (u_long frompc, u_long selfpc)
00037 
00038 
00039 /* Define MCOUNT as empty since we have the implementation in another
00040    file.  */
00041 #define MCOUNT