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-rw-r--r--gprof/hertz.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/gprof/hertz.h b/gprof/hertz.h
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+++ b/gprof/hertz.h
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+#ifndef hertz_h
+#define hertz_h
+
+#include "gprof.h"
+
+#define HZ_WRONG 0 /* impossible clock frequency */
+
+/*
+ * Discover the tick frequency of the machine if something goes wrong,
+ * we return HZ_WRONG, an impossible sampling frequency.
+ */
+
+/* FIXME: Checking for MACH here makes no sense when for a cross
+ gprof. */
+#ifdef MACH
+#include <machine/mach_param.h>
+#define hertz() (HZ)
+#else
+extern int hertz PARAMS ((void));
+#endif
+
+#endif /* hertz_h */