mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-22 19:00:07 +00:00
41 lines
1.7 KiB
C
41 lines
1.7 KiB
C
/* i386-specific implementation of profiling support.
|
|
Copyright (C) 1997-2015 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdep.h>
|
|
|
|
/* We need a special version of the `mcount' function since for ix86 it
|
|
must not clobber any register. This has several reasons:
|
|
- there is a bug in gcc as of version 2.7.2.2 which prohibits the
|
|
use of profiling together with nested functions
|
|
- the ELF `fixup' function uses GCC's regparm feature
|
|
- some (future) systems might want to pass parameters in registers. */
|
|
|
|
/* We must not pollute the global namespace. */
|
|
#define mcount_internal __mcount_internal
|
|
|
|
extern void mcount_internal (u_long frompc, u_long selfpc) internal_function;
|
|
|
|
#define _MCOUNT_DECL(frompc, selfpc) \
|
|
void internal_function mcount_internal (u_long frompc, u_long selfpc)
|
|
|
|
|
|
/* Define MCOUNT as empty since we have the implementation in another
|
|
file. */
|
|
#define MCOUNT
|