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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-03-16 10:28:03 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-03-16 13:35:26 +0100 |
| commit | 4bf79afb665bfd9b71c49088afaf655b82186522 (patch) | |
| tree | c77c5c4dff9e30846b59944c6f288ba8733f94e2 /cpukit/score/src/kern_tc.c | |
| parent | score: Fix intenal mutex attributes (diff) | |
| download | rtems-4bf79afb665bfd9b71c49088afaf655b82186522.tar.bz2 | |
timecounter: Avoid invalid memcpy()
In uni-processor configurations we have only one timehand. Do not issue
a memcpy() with equal source and destination.
Diffstat (limited to 'cpukit/score/src/kern_tc.c')
| -rw-r--r-- | cpukit/score/src/kern_tc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/cpukit/score/src/kern_tc.c b/cpukit/score/src/kern_tc.c index 316a16f05b..bd6ab045b1 100644 --- a/cpukit/score/src/kern_tc.c +++ b/cpukit/score/src/kern_tc.c @@ -1411,10 +1411,16 @@ tc_windup(void) * the contents, the generation must be zero. */ tho = timehands; +#if defined(RTEMS_SMP) th = tho->th_next; +#else + th = tho; +#endif ogen = th->th_generation; tc_setgen(th, 0); +#if defined(RTEMS_SMP) bcopy(tho, th, offsetof(struct timehands, th_generation)); +#endif /* * Capture a timecounter delta on the current timecounter and if @@ -1552,7 +1558,9 @@ tc_windup(void) } #endif +#if defined(RTEMS_SMP) timehands = th; +#endif #ifndef __rtems__ timekeep_push_vdso(); #endif /* __rtems__ */ |