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| author | Lukasz Majewski <lukma@denx.de> | 2020-11-23 17:47:20 -0300 |
|---|---|---|
| committer | Lukasz Majewski <lukma@denx.de> | 2020-11-30 14:08:44 +0100 |
| commit | cc5d5852c65eddf92368b0845e1374bd443316e7 (patch) | |
| tree | 5ee539d880f98c0d74e2d6b8fa342aaafe88e758 /sysdeps/nptl/aio_misc.h | |
| parent | fdb724f9032ff73310be0e51549f494a3eaa7495 (diff) | |
| download | glibc-cc5d5852c65eddf92368b0845e1374bd443316e7.tar.gz glibc-cc5d5852c65eddf92368b0845e1374bd443316e7.tar.xz glibc-cc5d5852c65eddf92368b0845e1374bd443316e7.zip | |
y2038: Convert aio_suspend to support 64 bit time
The aio_suspend function has been converted to support 64 bit time.
This change uses (in aio_misc.h):
- __futex_abstimed_wait64 (instead of futex_reltimed_wait)
- __futex_abstimed_wait_cancellable64
(instead of futex_reltimed_wait_cancellable)
from ./sysdeps/nptl/futex-helpers.h
The aio_suspend() accepts relative timeout, which then is converted to
absolute one.
The i686-gnu port (HURD) do not define DONT_NEED_AIO_MISC_COND and as it
doesn't (yet) support 64 bit time it uses not converted
pthread_cond_timedwait().
The __aio_suspend() is supposed to be run on ports with __TIMESIZE !=64 and
__WORDSIZE==32. It internally utilizes __aio_suspend_time64() and hence the
conversion from 32 bit struct timespec to 64 bit one is required.
For ports supporting 64 bit time the __aio_suspend_time64() will be used
either via alias (to __aio_suspend when __TIMESIZE==64) or redirection
(when -D_TIME_BITS=64 is passed).
Build tests:
./src/scripts/build-many-glibcs.py glibcs
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/nptl/aio_misc.h')
| -rw-r--r-- | sysdeps/nptl/aio_misc.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/sysdeps/nptl/aio_misc.h b/sysdeps/nptl/aio_misc.h index 3f195f4794..effe94efaa 100644 --- a/sysdeps/nptl/aio_misc.h +++ b/sysdeps/nptl/aio_misc.h @@ -45,11 +45,12 @@ do \ { \ if (cancel) \ - status = futex_reltimed_wait_cancelable ( \ - (unsigned int *) futexaddr, oldval, timeout, FUTEX_PRIVATE); \ + status = __futex_abstimed_wait_cancelable64 ( \ + (unsigned int *) futexaddr, oldval, CLOCK_MONOTONIC, timeout, \ + FUTEX_PRIVATE); \ else \ - status = futex_reltimed_wait ((unsigned int *) futexaddr, \ - oldval, timeout, FUTEX_PRIVATE); \ + status = __futex_abstimed_wait64 ((unsigned int *) futexaddr, \ + oldval, CLOCK_REALTIME, timeout, FUTEX_PRIVATE); \ if (status != EAGAIN) \ break; \ \ @@ -61,6 +62,8 @@ result = EINTR; \ else if (status == ETIMEDOUT) \ result = EAGAIN; \ + else if (status == EOVERFLOW) \ + result = EOVERFLOW; \ else \ assert (status == 0 || status == EAGAIN); \ \ |