fftw3: hangs on raspberry pi3 #5512
Description
Maintainer: @Wedmer
Environment: (arm, brcm2708_bcm2710, lede 79f57e4)
Description:
FFTW3 hangs due to using CLOCK_SGI_CYCLE, which was removed from linux.
see FFTW/fftw3#122 and FFTW/fftw3#123
diff --git a/kernel/cycle.h b/kernel/cycle.h
index fe3dd50d..777d1cda 100644
--- a/kernel/cycle.h
+++ b/kernel/cycle.h
@@ -437,14 +437,24 @@ INLINE_ELAPSED(__inline)
#define HAVE_TICK_COUNTER
#endif
/*----------------------------------------------------------------*/
-/* SGI/Irix */
-#if defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_SGI_CYCLE) && !defined(HAVE_TICK_COUNTER) && !defined(__ANDROID__)
+/* SGI/Irix/Linux but not android */
+#if !defined(__ANDROID__) && !defined(HAVE_TICK_COUNTER)
+#if defined(HAVE_CLOCK_GETTIME)
+#if defined(CLOCK_MONOTONIC)
+#define METHOD CLOCK_MONOTONIC
+#elif defined(CLOCK_REALTIME)
+#define METHOD CLOCK_REALTIME
+#elif defined(CLOCK_SGI_CYCLE)
+#define METHOD CLOCK_SGI_CYCLE
+#endif
+#endif
+
typedef struct timespec ticks;
static inline ticks getticks(void)
{
struct timespec t;
- clock_gettime(CLOCK_SGI_CYCLE, &t);
+ clock_gettime(METHOD, &t);
return t;
}