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semi-libc/src/thread
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Rich Felker f5eee489f7 harden thread start with failed scheduling against broken __clone 
commit 8a544ee3a2 introduced a
dependency of the failure path for explicit scheduling at thread
creation on __clone's handling of the start function returning, which
should result in SYS_exit.

as noted in commit 05870abeaa, the arm
version of __clone was broken in this case. in the past, the mips
version was also broken; it was fixed in commit
8b2b61e000.

since this code path is pretty much entirely untested (previously only
reachable in applications that call the public clone() and return from
the start function) and consists of fragile per-arch asm, don't assume
it works, at least not until it's been thoroughly tested. instead make
the SYS_exit syscall from the start function's failure path.
2019-09-13 14:17:36 -04:00
..
aarch64
make arch __set_thread_area backends hidden
2018-09-12 14:34:32 -04:00
arm
fix arm __a_barrier_oldkuser when built as thumb
2019-09-11 13:21:28 -04:00
i386
install dynamic tls synchronously at dlopen, streamline access
2019-02-18 21:01:16 -05:00
m68k
make arch __clone backends hidden
2018-09-12 14:34:31 -04:00
microblaze
make arch __set_thread_area backends hidden
2018-09-12 14:34:32 -04:00
mips
make arch __clone backends hidden
2018-09-12 14:34:31 -04:00
mips64
make arch __clone backends hidden
2018-09-12 14:34:31 -04:00
mipsn32
make arch __clone backends hidden
2018-09-12 14:34:31 -04:00
or1k
make arch __set_thread_area backends hidden
2018-09-12 14:34:32 -04:00
powerpc
make arch __set_thread_area backends hidden
2018-09-12 14:34:32 -04:00
powerpc64
make arch __set_thread_area backends hidden
2018-09-12 14:34:32 -04:00
riscv64
add riscv64 architecture support
2019-06-14 17:13:05 -04:00
s390x
make arch __set_thread_area backends hidden
2018-09-12 14:34:32 -04:00
sh
use hidden visibility for sh __unmapself backends
2018-09-12 14:34:32 -04:00
x32
remove x32 syscall timespec fixup hacks
2019-07-29 00:19:21 -04:00
x86_64
make arch __set_thread_area backends hidden
2018-09-12 14:34:32 -04:00
__lock.c
new lock algorithm with state and congestion count in one atomic int
2018-01-09 13:10:12 -05:00
__set_thread_area.c
generic c version of __set_thread_area for archs where it works
2012-07-11 11:34:46 -04:00
__syscall_cp.c
remove external __syscall function and last remaining users
2019-04-10 20:11:19 -04:00
__timedwait.c
futex wait operations: add time64 syscall support, decouple 32-bit time_t
2019-07-28 17:44:51 -04:00
__tls_get_addr.c
install dynamic tls synchronously at dlopen, streamline access
2019-02-18 21:01:16 -05:00
__unmapself.c
track all live threads in an AS-safe, fully-consistent linked list
2019-02-15 22:29:01 -05:00
__wait.c
use the internal macro name FUTEX_PRIVATE in __wait
2015-02-09 22:11:52 +01:00
call_once.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
clone.c
clone: make clone a wrapper around __clone
2014-02-09 20:07:43 -06:00
cnd_broadcast.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
cnd_destroy.c
add C11 condition variable functions
2014-09-06 22:27:45 -04:00
cnd_init.c
add C11 condition variable functions
2014-09-06 22:27:45 -04:00
cnd_signal.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
cnd_timedwait.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
cnd_wait.c
add C11 condition variable functions
2014-09-06 22:27:45 -04:00
default_attr.c
limit the configurable default stack/guard size for threads
2018-09-18 23:06:50 -04:00
lock_ptc.c
support for TLS in dynamic-loaded (dlopen) modules
2012-10-05 11:51:50 -04:00
mtx_destroy.c
add C11 mutex functions
2014-09-06 22:07:22 -04:00
mtx_init.c
add C11 mutex functions
2014-09-06 22:07:22 -04:00
mtx_lock.c
add C11 mutex functions
2014-09-06 22:07:22 -04:00
mtx_timedlock.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
mtx_trylock.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
mtx_unlock.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
pthread_atfork.c
split internal lock API out of libc.h, creating lock.h
2018-09-12 18:40:35 -04:00
pthread_attr_destroy.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
pthread_attr_get.c
simplify pthread_attr_t stack/guard size representation
2016-11-07 20:47:24 -05:00
pthread_attr_init.c
remove redundant declarations of __default_stacksize, __default_guardsize
2018-09-18 19:48:44 -04:00
pthread_attr_setdetachstate.c
reject invalid attribute settings
2011-03-07 15:46:37 -05:00
pthread_attr_setguardsize.c
simplify pthread_attr_t stack/guard size representation
2016-11-07 20:47:24 -05:00
pthread_attr_setinheritsched.c
always block signals for starting new threads, refactor start args
2019-02-15 21:02:42 -05:00
pthread_attr_setschedparam.c
add support for thread scheduling (POSIX TPS option)
2012-11-11 15:38:04 -05:00
pthread_attr_setschedpolicy.c
add support for thread scheduling (POSIX TPS option)
2012-11-11 15:38:04 -05:00
pthread_attr_setscope.c
add support for thread scheduling (POSIX TPS option)
2012-11-11 15:38:04 -05:00
pthread_attr_setstack.c
simplify pthread_attr_t stack/guard size representation
2016-11-07 20:47:24 -05:00
pthread_attr_setstacksize.c
simplify pthread_attr_t stack/guard size representation
2016-11-07 20:47:24 -05:00
pthread_barrier_destroy.c
redesign and simplify vmlock system
2015-04-10 02:27:52 -04:00
pthread_barrier_init.c
make pthread attribute types structs, even when they just have one field
2013-07-22 13:57:02 -04:00
pthread_barrier_wait.c
unify the use of FUTEX_PRIVATE
2017-07-04 17:12:52 -04:00
pthread_barrierattr_destroy.c
implement barrier attribute functions (essentially no-ops)
2011-03-07 15:42:52 -05:00
pthread_barrierattr_init.c
clean up sloppy nested inclusion from pthread_impl.h
2012-11-08 17:04:20 -05:00
pthread_barrierattr_setpshared.c
reject invalid arguments to pthread_barrierattr_setpshared
2018-08-28 18:12:17 -04:00
pthread_cancel.c
reduce spurious inclusion of libc.h
2018-09-12 14:34:37 -04:00
pthread_cleanup_push.c
rename file containing pthread_cleanup_push and pop for consistency
2014-07-06 23:10:35 -04:00
pthread_cond_broadcast.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
pthread_cond_destroy.c
redesign cond var implementation to fix multiple issues
2014-08-17 22:09:47 -04:00
pthread_cond_init.c
redesign cond var implementation to fix multiple issues
2014-08-17 22:09:47 -04:00
pthread_cond_signal.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
pthread_cond_timedwait.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
pthread_cond_wait.c
use restrict everywhere it's required by c99 and/or posix 2008
2012-09-06 22:44:55 -04:00
pthread_condattr_destroy.c
implement pthread_condattr_* interfaces
2011-03-07 16:20:12 -05:00
pthread_condattr_init.c
clean up sloppy nested inclusion from pthread_impl.h
2012-11-08 17:04:20 -05:00
pthread_condattr_setclock.c
make pthread attribute types structs, even when they just have one field
2013-07-22 13:57:02 -04:00
pthread_condattr_setpshared.c
fix signed left-shift overflow in pthread_condattr_setpshared
2015-03-04 21:46:08 -05:00
pthread_create.c
harden thread start with failed scheduling against broken __clone
2019-09-13 14:17:36 -04:00
pthread_detach.c
track all live threads in an AS-safe, fully-consistent linked list
2019-02-15 22:29:01 -05:00
pthread_equal.c
reduce spurious inclusion of libc.h
2018-09-12 14:34:37 -04:00
pthread_getattr_np.c
improve joinable/detached thread state handling
2018-05-05 21:33:58 -04:00
pthread_getconcurrency.c
implement pthread_[sg]etconcurrency.
2011-05-30 11:31:07 -04:00
pthread_getcpuclockid.c
support cputime clocks for processes/threads other than self
2013-06-08 11:36:41 -04:00
pthread_getschedparam.c
split internal lock API out of libc.h, creating lock.h
2018-09-12 18:40:35 -04:00
pthread_getspecific.c
add C11 thread functions operating on tss_t and once_flag
2014-09-06 21:38:04 -04:00
pthread_join.c
fix missing declarations for pthread_join extensions in source file
2019-08-02 00:08:23 -04:00
pthread_key_create.c
fix data race choosing next key slot in pthread_key_create
2019-03-21 13:58:12 -04:00
pthread_kill.c
split internal lock API out of libc.h, creating lock.h
2018-09-12 18:40:35 -04:00
pthread_mutex_consistent.c
redesign robust mutex states to eliminate data races on type field
2019-02-12 19:56:49 -05:00
pthread_mutex_destroy.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
pthread_mutex_getprioceiling.c
add stub versions of some missing optional pthread interfaces
2012-11-17 18:42:16 -05:00
pthread_mutex_init.c
enable private futex for process-local robust mutexes
2014-08-16 02:28:34 -04:00
pthread_mutex_lock.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
pthread_mutex_setprioceiling.c
add stub versions of some missing optional pthread interfaces
2012-11-17 18:42:16 -05:00
pthread_mutex_timedlock.c
futex wait operations: add time64 syscall support, decouple 32-bit time_t
2019-07-28 17:44:51 -04:00
pthread_mutex_trylock.c
fix harmless-by-chance typo in priority inheritance mutex code
2019-04-01 18:51:50 -04:00
pthread_mutex_unlock.c
implement priority inheritance mutexes
2019-03-31 20:59:13 -04:00
pthread_mutexattr_destroy.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
pthread_mutexattr_init.c
clean up sloppy nested inclusion from pthread_impl.h
2012-11-08 17:04:20 -05:00
pthread_mutexattr_setprotocol.c
implement priority inheritance mutexes
2019-03-31 20:59:13 -04:00
pthread_mutexattr_setpshared.c
make futex operations use private-futex mode when possible
2014-08-15 23:54:52 -04:00
pthread_mutexattr_setrobust.c
check for kernel support before allowing robust mutex creation
2018-09-15 14:22:06 -04:00
pthread_mutexattr_settype.c
make pthread attribute types structs, even when they just have one field
2013-07-22 13:57:02 -04:00
pthread_once.c
hide __pthread_once_full symbol
2018-09-12 14:34:36 -04:00
pthread_rwlock_destroy.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
pthread_rwlock_init.c
make futex operations use private-futex mode when possible
2014-08-15 23:54:52 -04:00
pthread_rwlock_rdlock.c
introduce namespace-safe rwlock aliases; use in pthread_key_create
2019-02-16 11:44:07 -05:00
pthread_rwlock_timedrdlock.c
introduce namespace-safe rwlock aliases; use in pthread_key_create
2019-02-16 11:44:07 -05:00
pthread_rwlock_timedwrlock.c
introduce namespace-safe rwlock aliases; use in pthread_key_create
2019-02-16 11:44:07 -05:00
pthread_rwlock_tryrdlock.c
introduce namespace-safe rwlock aliases; use in pthread_key_create
2019-02-16 11:44:07 -05:00
pthread_rwlock_trywrlock.c
introduce namespace-safe rwlock aliases; use in pthread_key_create
2019-02-16 11:44:07 -05:00
pthread_rwlock_unlock.c
introduce namespace-safe rwlock aliases; use in pthread_key_create
2019-02-16 11:44:07 -05:00
pthread_rwlock_wrlock.c
introduce namespace-safe rwlock aliases; use in pthread_key_create
2019-02-16 11:44:07 -05:00
pthread_rwlockattr_destroy.c
implement pthread_rwlockattr_* (essentially no-ops)
2011-03-07 16:43:25 -05:00
pthread_rwlockattr_init.c
clean up sloppy nested inclusion from pthread_impl.h
2012-11-08 17:04:20 -05:00
pthread_rwlockattr_setpshared.c
make pthread attribute types structs, even when they just have one field
2013-07-22 13:57:02 -04:00
pthread_self.c
reduce spurious inclusion of libc.h
2018-09-12 14:34:37 -04:00
pthread_setattr_default_np.c
limit the configurable default stack/guard size for threads
2018-09-18 23:06:50 -04:00
pthread_setcancelstate.c
remove remnants of support for running in no-thread-pointer mode
2015-04-13 19:24:51 -04:00
pthread_setcanceltype.c
replace all remaining internal uses of pthread_self with __pthread_self
2014-06-10 04:02:40 -04:00
pthread_setconcurrency.c
implement pthread_[sg]etconcurrency.
2011-05-30 11:31:07 -04:00
pthread_setname_np.c
add pthread_setname_np
2016-10-20 01:48:27 -04:00
pthread_setschedparam.c
split internal lock API out of libc.h, creating lock.h
2018-09-12 18:40:35 -04:00
pthread_setschedprio.c
split internal lock API out of libc.h, creating lock.h
2018-09-12 18:40:35 -04:00
pthread_setspecific.c
optimize POSIX TSD for fast pthread_getspecific
2011-03-03 18:30:44 -05:00
pthread_sigmask.c
don't fail pthread_sigmask/sigprocmask on invalid how when set is null
2018-12-18 20:01:20 -05:00
pthread_spin_destroy.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
pthread_spin_init.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
pthread_spin_lock.c
minor optimization to pthread_spin_trylock
2015-04-22 03:24:37 -04:00
pthread_spin_trylock.c
minor optimization to pthread_spin_trylock
2015-04-22 03:24:37 -04:00
pthread_spin_unlock.c
prepare pthread_spin_unlock for archs that need memory barriers
2011-03-24 23:06:48 -04:00
pthread_testcancel.c
reduce spurious inclusion of libc.h
2018-09-12 14:34:37 -04:00
sem_destroy.c
implement POSIX semaphores
2011-03-04 00:45:59 -05:00
sem_getvalue.c
use restrict everywhere it's required by c99 and/or posix 2008
2012-09-06 22:44:55 -04:00
sem_init.c
make futex operations use private-futex mode when possible
2014-08-15 23:54:52 -04:00
sem_open.c
split internal lock API out of libc.h, creating lock.h
2018-09-12 18:40:35 -04:00
sem_post.c
make futex operations use private-futex mode when possible
2014-08-15 23:54:52 -04:00
sem_timedwait.c
make sem_wait and sem_timedwait interruptible by signals
2018-12-19 19:32:41 -05:00
sem_trywait.c
retry on cas failures in sem_trywait
2012-07-24 00:51:36 -04:00
sem_unlink.c
implement POSIX semaphores
2011-03-04 00:45:59 -05:00
sem_wait.c
implement POSIX semaphores
2011-03-04 00:45:59 -05:00
synccall.c
rewrite __synccall in terms of global thread list
2019-02-16 10:11:22 -05:00
syscall_cp.c
overhaul pthread cancellation
2011-04-17 11:43:03 -04:00
thrd_create.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
thrd_exit.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
thrd_join.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
thrd_sleep.c
refactor thrd_sleep and nanosleep in terms of clock_nanosleep
2019-07-27 02:46:57 -04:00
thrd_yield.c
add C11 thread creation and related thread functions
2014-09-07 10:28:08 -04:00
tls.c
beginnings of full TLS support in shared libraries
2012-10-04 21:01:56 -04:00
tss_create.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
tss_delete.c
overhaul internally-public declarations using wrapper headers
2018-09-12 14:34:33 -04:00
tss_set.c
add C11 thread functions operating on tss_t and once_flag
2014-09-06 21:38:04 -04:00
vmlock.c
remove mismatched arguments from vmlock function definitions
2015-04-11 10:38:57 -04:00