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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-10-29 15:34:31 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-11-25 10:46:22 -0300 |
| commit | 74f418b29d1e9463028f2ae4cc2a9c74d39aeaab (patch) | |
| tree | afc76155ba0a5384bc6d142742441dc2b27cdc6a /sysdeps | |
| parent | b45b1c5ba1df4d0315ffdd00a040ff9bc0597a8d (diff) | |
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nptl: Return EINVAL for pthread_mutex_clocklock/PI with CLOCK_MONOTONIC [BZ #26801]
Linux futex FUTEX_LOCK_PI operation only supports CLOCK_REALTIME,
so pthread_mutex_clocklock operation with priority aware mutexes
may fail depending of the input timeout.
Also, it is not possible to convert a CLOCK_MONOTONIC to a
CLOCK_REALTIME due the possible wall clock time change which might
invalid the requested timeout.
Checked on x86_64-linux-gnu and i686-linux-gnu.
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/pthread/tst-mutex5.c | 2 | ||||
| -rw-r--r-- | sysdeps/pthread/tst-mutex9.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-mutex5.c b/sysdeps/pthread/tst-mutex5.c index 14490768c3..bfe1a79fa4 100644 --- a/sysdeps/pthread/tst-mutex5.c +++ b/sysdeps/pthread/tst-mutex5.c @@ -112,7 +112,9 @@ static int do_test (void) { do_test_clock (CLOCK_USE_TIMEDLOCK, "timedlock"); do_test_clock (CLOCK_REALTIME, "clocklock(realtime)"); +#ifndef ENABLE_PI do_test_clock (CLOCK_MONOTONIC, "clocklock(monotonic)"); +#endif return 0; } diff --git a/sysdeps/pthread/tst-mutex9.c b/sysdeps/pthread/tst-mutex9.c index 2d7927b7c2..bfc01f8c75 100644 --- a/sysdeps/pthread/tst-mutex9.c +++ b/sysdeps/pthread/tst-mutex9.c @@ -133,7 +133,9 @@ do_test (void) { do_test_clock (CLOCK_USE_TIMEDLOCK); do_test_clock (CLOCK_REALTIME); +#ifndef ENABLE_PI do_test_clock (CLOCK_MONOTONIC); +#endif return 0; } |