i386 specific definitions for gmon.

1 files changed, 41 insertions, 0 deletions

diff --git a/sysdeps/i386/machine-gmon.h b/sysdeps/i386/machine-gmon.h
new file mode 100644
index 0000000000..496a57eb84
--- /dev/null
+++ b/sysdeps/i386/machine-gmon.h
@@ -0,0 +1,41 @@
+/* i386-specific implemetation of profiling support.
+   Copyright (C) 1997 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 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#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
+
+void mcount_internal (u_long frompc, u_long selfpc);
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+void mcount_internal (u_long frompc, u_long selfpc)
+
+
+/* Define MCOUNT as empty since we have a the implementation in another
+   file.  */
+#define MCOUNT