diff options
Diffstat (limited to 'sysdeps/generic/machine-gmon.h')
-rw-r--r-- | sysdeps/generic/machine-gmon.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/generic/machine-gmon.h b/sysdeps/generic/machine-gmon.h new file mode 100644 index 0000000000..24101f34f0 --- /dev/null +++ b/sysdeps/generic/machine-gmon.h @@ -0,0 +1,44 @@ +/* Machine-dependent definitions for profiling support. Generic GCC 2 version. +Copyright (C) 1996 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +/* GCC version 2 gives us a perfect magical function to get + just the information we need: + void *__builtin_return_address (unsigned int N) + returns the return address of the frame N frames up. */ + +#if __GNUC__ < 2 + #error "This file uses __builtin_return_address, a GCC 2 extension." +#endif + +#include <sysdep.h> +#ifndef NO_UNDERSCORES +/* The asm symbols for C functions are `_function'. + The canonical name for the counter function is `mcount', no _. */ +void _mcount (void) asm ("mcount"); +#endif + +#define _MCOUNT_DECL(frompc, selfpc) \ +static inline void mcount_internal (frompc, selfpc) + +#define MCOUNT \ +void _mcount (void) \ +{ \ + mcount_internal ((u_long) __builtin_return_address (0), \ + (u_long) __builtin_return_address (1)); \ +} |