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29e9874a04
The pthread_mutex_clocklock and pthread_mutex_timedlock have been converted
to support 64 bit time.
This change uses:
- New __futex_clocklock_wait64 (instead of lll_timedwait)
from ./sysdeps/nptl/futex-helpers.c and
- New __futex_clocklock64 function (instead of lll_clocklock)
- New futex_lock_pi64
defined in sysdeps/nptl/futex-internal.h
The pthread_mutex_{clock|timed}lock only accepts absolute time.
Moreover, there is no need to check for NULL passed as *abstime pointer to the
syscalls as those calls have exported symbols marked with __nonull attribute
for abstime.
Some architectures - namely x86, powerpc and s390 - do support lock elision.
For those - adjustments have been made in arch specific elision-*.c files
to use __futex_clocklock64 instead of lll_clocklock.
The __lll_lock_elision (aliased to __lll_clocklock_elision in e.g.
sysdeps/unix/sysv/linux/s390/elision-timed.c) just uses, in this patch
provided, __futex_clocklock64.
For systems with __TIMESIZE != 64 && __WORDSIZE == 32:
- Conversions between 64 bit time to 32 bit are necessary
- Redirection to pthread_mutex_{clock|timed}lock will provide support for 64
bit time
Build tests:
./src/scripts/build-many-glibcs.py glibcs
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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|---|---|---|
| .. | ||
| bits | ||
| powerpc32 | ||
| powerpc64 | ||
| sys | ||
| configure | ||
| configure.ac | ||
| dl-auxv.h | ||
| dl-brk.S | ||
| dl-cache.h | ||
| dl-static.c | ||
| elision-conf.c | ||
| elision-conf.h | ||
| elision-lock.c | ||
| elision-timed.c | ||
| elision-trylock.c | ||
| elision-unlock.c | ||
| force-elision.h | ||
| get_timebase_freq.c | ||
| gettimeofday.c | ||
| htm.h | ||
| Implies | ||
| ioctl.c | ||
| ipc_priv.h | ||
| kernel_sigaction.h | ||
| kernel_termios.h | ||
| kernel-features.h | ||
| ldconfig.h | ||
| ldd-rewrite.sed | ||
| ldsodefs.h | ||
| libc-start.c | ||
| libc-start.h | ||
| libc-vdso.h | ||
| lowlevellock.h | ||
| Makefile | ||
| nldbl-abi.h | ||
| pt-longjmp.c | ||
| pthread_attr_setstack.c | ||
| pthread_attr_setstacksize.c | ||
| pthread_mutex_cond_lock.c | ||
| pthread_mutex_lock.c | ||
| pthread_mutex_timedlock.c | ||
| pthread_mutex_trylock.c | ||
| readelflib.c | ||
| rt-sysdep.c | ||
| sigcontextinfo.h | ||
| struct_kernel_shmid64_ds.h | ||
| syscall.S | ||
| sysconf.c | ||
| sysdep.c | ||
| sysdep.h | ||
| test-gettimebasefreq-static.c | ||
| test-gettimebasefreq.c | ||
| test-powerpc-linux-sysconf.c | ||
| time.c | ||
| Versions | ||
| xstatver.h | ||