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-rw-r--r--gmon/mcount.c30
1 files changed, 4 insertions, 26 deletions
diff --git a/gmon/mcount.c b/gmon/mcount.c
index ac3584d..ea60afc 100644
--- a/gmon/mcount.c
+++ b/gmon/mcount.c
@@ -38,6 +38,10 @@ static char sccsid[] = "@(#)mcount.c 8.1 (Berkeley) 6/4/93";
#include <sys/param.h>
#include <sys/gmon.h>
+/* This file provides the machine-dependent definitions of the _MCOUNT_DECL
+ and MCOUNT macros. */
+#include "machine-gmon.h"
+
/*
* mcount is called on entry to each function compiled with the profiling
* switch set. _mcount(), which is declared in a machine-dependent way
@@ -53,33 +57,9 @@ static char sccsid[] = "@(#)mcount.c 8.1 (Berkeley) 6/4/93";
* both frompcindex and frompc. Any reasonable, modern compiler will
* perform this optimization.
*/
-#if 0
_MCOUNT_DECL(frompc, selfpc) /* _mcount; may be static, inline, etc */
register u_long frompc, selfpc;
-#endif
-
-/* 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
-
-void
-_mcount (void)
{
- register u_long selfpc = (u_long) __builtin_return_address (0);
- register u_long frompc = (u_long) __builtin_return_address (1);
-
register u_short *frompcindex;
register struct tostruct *top, *prevtop;
register struct gmonparam *p;
@@ -195,10 +175,8 @@ overflow:
return;
}
-#if 0 /* Obsolete with __builtin_return_address. */
/*
* Actual definition of mcount function. Defined in <machine/profile.h>,
* which is included by <sys/gmon.h>.
*/
MCOUNT
-#endif