1 files changed, 45 insertions, 0 deletions
diff --git a/gcc/f/runtime/libF77/dtime_.c b/gcc/f/runtime/libF77/dtime_.c
new file mode 100644
index 00000000000..2e775c6b84e
--- /dev/null
+++ b/gcc/f/runtime/libF77/dtime_.c
@@ -0,0 +1,45 @@
+#include "time.h"
+#ifndef USE_CLOCK
+#include "sys/types.h"
+#include "sys/times.h"
+#endif
+
+#undef Hz
+#ifdef CLK_TCK
+#define Hz CLK_TCK
+#else
+#ifdef HZ
+#define Hz HZ
+#else
+#define Hz 60
+#endif
+#endif
+
+ float
+#ifdef KR_headers
+dtime_(tarray) float *tarray;
+#else
+dtime_(float *tarray)
+#endif
+{
+#ifdef USE_CLOCK
+#ifndef CLOCKS_PER_SECOND
+#define CLOCKS_PER_SECOND Hz
+#endif
+	static double t0;
+	double t = clock();
+	tarray[1] = 0;
+	tarray[0] = (t - t0) / CLOCKS_PER_SECOND;
+	t0 = t;
+	return tarray[0];
+#else
+	struct tms t;
+	static struct tms t0;
+
+	times(&t);
+	tarray[0] = (t.tms_utime - t0.tms_utime) / Hz;
+	tarray[1] = (t.tms_stime - t0.tms_stime) / Hz;
+	t0 = t;
+	return tarray[0] + tarray[1];
+#endif
+	}