1 files changed, 50 insertions, 0 deletions
diff --git a/src/ext/ed25519/donna/test-ticks.h b/src/ext/ed25519/donna/test-ticks.h
new file mode 100644
index 0000000000..0103e03dde
--- /dev/null
+++ b/src/ext/ed25519/donna/test-ticks.h
@@ -0,0 +1,50 @@
+#include "ed25519-donna-portable-identify.h"
+
+/* ticks - not tested on anything other than x86 */
+static uint64_t
+get_ticks(void) {
+#if defined(CPU_X86) || defined(CPU_X86_64)
+	#if defined(COMPILER_INTEL)
+		return _rdtsc();
+	#elif defined(COMPILER_MSVC)
+		return __rdtsc();
+	#elif defined(COMPILER_GCC)
+		uint32_t lo, hi;
+		__asm__ __volatile__("rdtsc" : "=a" (lo), "=d" (hi));
+		return ((uint64_t)lo | ((uint64_t)hi << 32));
+	#else
+		need rdtsc for this compiler
+	#endif
+#elif defined(OS_SOLARIS)
+	return (uint64_t)gethrtime();
+#elif defined(CPU_SPARC) && !defined(OS_OPENBSD)
+	uint64_t t;
+	__asm__ __volatile__("rd %%tick, %0" : "=r" (t));
+	return t;
+#elif defined(CPU_PPC)
+	uint32_t lo = 0, hi = 0;
+	__asm__ __volatile__("mftbu %0; mftb %1" : "=r" (hi), "=r" (lo));
+	return ((uint64_t)lo | ((uint64_t)hi << 32));
+#elif defined(CPU_IA64)
+	uint64_t t;
+	__asm__ __volatile__("mov %0=ar.itc" : "=r" (t));
+	return t;
+#elif defined(OS_NIX)
+	timeval t2;
+	gettimeofday(&t2, NULL);
+	t = ((uint64_t)t2.tv_usec << 32) | (uint64_t)t2.tv_sec;
+	return t;
+#else
+	need ticks for this platform
+#endif
+}
+
+#define timeit(x,minvar)         \
+	ticks = get_ticks();         \
+ 	x;                           \
+	ticks = get_ticks() - ticks; \
+	if (ticks < minvar)          \
+		minvar = ticks;
+
+#define maxticks 0xffffffffffffffffull
+