1 /* Machine-dependent definitions for profiling support. Generic GCC 2 version.
2 Copyright (C) 1996 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If
17 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
18 Cambridge, MA 02139, USA. */
20 /* GCC version 2 gives us a perfect magical function to get
21 just the information we need:
22 void *__builtin_return_address (unsigned int N)
23 returns the return address of the frame N frames up. */
26 #error "This file uses __builtin_return_address, a GCC 2 extension."
30 #ifndef NO_UNDERSCORES
31 /* The asm symbols for C functions are `_function'.
32 The canonical name for the counter function is `mcount', no _. */
33 void _mcount (void) asm ("mcount");
36 #define _MCOUNT_DECL(frompc, selfpc) \
37 static inline void mcount_internal (frompc, selfpc)
42 mcount_internal ((u_long) __builtin_return_address (0), \
43 (u_long) __builtin_return_address (1)); \