mirror of
https://git.proxmox.com/git/wasi-libc
synced 2025-11-03 12:16:29 +00:00
dcd28cf8f6
* Fixes for the THREAD_MODEL=posix build * Fix expected symbols from previous commit * Enable `lock` in `random.c` when threads are enabled This uses the `_REENTRANT` definition to indicate when the `lock` should be available. * Disable `aio.h` when compiling for threads In talking to @sunfishcode about `aio.h`, this functionality is not yet a primary concern (it was already disabled in the default, single-threaded mode). Additionally, this change adds expectation lines for the new symbols/includes added and removed by `pthread.h`. This change was reached by running: ```console $ git diff --no-index expected/wasm32-wasi sysroot/share/wasm32-wasi > patch.diff # replace "sysroot/share" with "expected" in `patch.diff` $ git apply patch.diff --reject # manually fix any rejections ``` * Specify the TLS model until LLVM 15 is released The `-ftls-model` configuration can be removed once https://reviews.llvm.org/D130053 makes its way into an upstream release. * Rename `__wasi_libc_pthread_self` to `__wasilibc_pthread_self` The symbol is still undefined, though. * Add different sets of expected output based on THREAD_MODEL * Re-add trailing whitespace to `predefined-macros.txt` @sbc100 wanted to retain the whitespace trailing after certain predefined macro lines. This change restores that whitespace from upstream and re-generates the POSIX version using the following command: ```console $ git diff --no-index expected/wasm32-wasi/posix/predefined-macros.txt sysroot/share/wasm32-wasi/predefined-macros.txt | sed 's/sysroot\/share\/wasm32-wasi/expected\/wasm32-wasi\/posix/' | git apply ``` * Protect `preopens.c` against concurrent access * Only build thread-capable wasi-libc on latest version of Clang * Use `thrd_sleep` from MUSL instead of aliasing `nanosleep` * Define `pthread_setcancelstate` in `THREAD_MODEL=posix` builds There are other options here (e.g., always define the `pthread_*` symbols with stubs) but until we discuss that this is an intermediate working step. * Define a Wasm global to store `pthread_self` * Remove `g_needs_dynamic_alloc` global * Document the state of pthread support * review: de-duplicate symbols based on #314 * review: only define `__wasilibc_cwd_{un}lock` when needed * review: add #ifdefs to `__pthread_setcancelstate` * review: add additional #ifdefs to `pthread_self.c` * review: put lock definition behind #ifdef _REENTRANT * review: remove pthread_setcancelstate.c * review: re-fix indentation * review: alias __clock_nanosleep in bottom half * review: remove extra line Co-authored-by: Sam Clegg <sbc@chromium.org>
255 lines
9.5 KiB
C
255 lines
9.5 KiB
C
#ifndef _PTHREAD_H
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#define _PTHREAD_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <features.h>
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#define __NEED_time_t
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#define __NEED_clockid_t
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#define __NEED_struct_timespec
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#define __NEED_sigset_t
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#define __NEED_pthread_t
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#define __NEED_pthread_attr_t
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#define __NEED_pthread_mutexattr_t
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#define __NEED_pthread_condattr_t
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#define __NEED_pthread_rwlockattr_t
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#define __NEED_pthread_barrierattr_t
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#define __NEED_pthread_mutex_t
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#define __NEED_pthread_cond_t
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#define __NEED_pthread_rwlock_t
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#define __NEED_pthread_barrier_t
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#define __NEED_pthread_spinlock_t
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#define __NEED_pthread_key_t
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#define __NEED_pthread_once_t
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#define __NEED_size_t
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#include <bits/alltypes.h>
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#include <sched.h>
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#include <time.h>
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#define PTHREAD_CREATE_JOINABLE 0
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#define PTHREAD_CREATE_DETACHED 1
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#define PTHREAD_MUTEX_NORMAL 0
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#define PTHREAD_MUTEX_DEFAULT 0
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#define PTHREAD_MUTEX_RECURSIVE 1
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#define PTHREAD_MUTEX_ERRORCHECK 2
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#define PTHREAD_MUTEX_STALLED 0
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#define PTHREAD_MUTEX_ROBUST 1
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#define PTHREAD_PRIO_NONE 0
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#define PTHREAD_PRIO_INHERIT 1
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#define PTHREAD_PRIO_PROTECT 2
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#define PTHREAD_INHERIT_SCHED 0
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#define PTHREAD_EXPLICIT_SCHED 1
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#define PTHREAD_SCOPE_SYSTEM 0
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#define PTHREAD_SCOPE_PROCESS 1
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#define PTHREAD_PROCESS_PRIVATE 0
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#define PTHREAD_PROCESS_SHARED 1
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#if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT)
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#define PTHREAD_MUTEX_INITIALIZER {{{0}}}
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#define PTHREAD_RWLOCK_INITIALIZER {{{0}}}
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#define PTHREAD_COND_INITIALIZER {{{0}}}
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#else
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#define PTHREAD_MUTEX_INITIALIZER 0
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#define PTHREAD_RWLOCK_INITIALIZER 0
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#define PTHREAD_COND_INITIALIZER 0
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#endif
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#define PTHREAD_ONCE_INIT 0
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#define PTHREAD_CANCEL_ENABLE 0
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#define PTHREAD_CANCEL_DISABLE 1
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#define PTHREAD_CANCEL_MASKED 2
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#define PTHREAD_CANCEL_DEFERRED 0
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#define PTHREAD_CANCEL_ASYNCHRONOUS 1
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#define PTHREAD_CANCELED ((void *)-1)
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#define PTHREAD_BARRIER_SERIAL_THREAD (-1)
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#define PTHREAD_NULL ((pthread_t)0)
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int pthread_create(pthread_t *__restrict, const pthread_attr_t *__restrict, void *(*)(void *), void *__restrict);
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int pthread_detach(pthread_t);
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_Noreturn void pthread_exit(void *);
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int pthread_join(pthread_t, void **);
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#ifdef __GNUC__
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__attribute__((const))
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#endif
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pthread_t pthread_self(void);
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int pthread_equal(pthread_t, pthread_t);
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#ifndef __cplusplus
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#define pthread_equal(x,y) ((x)==(y))
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#endif
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int pthread_setcancelstate(int, int *);
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int pthread_setcanceltype(int, int *);
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void pthread_testcancel(void);
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int pthread_cancel(pthread_t);
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#ifdef __wasilibc_unmodified_upstream /* WASI has no CPU scheduling support. */
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int pthread_getschedparam(pthread_t, int *__restrict, struct sched_param *__restrict);
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int pthread_setschedparam(pthread_t, int, const struct sched_param *);
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#endif
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int pthread_setschedprio(pthread_t, int);
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int pthread_once(pthread_once_t *, void (*)(void));
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int pthread_mutex_init(pthread_mutex_t *__restrict, const pthread_mutexattr_t *__restrict);
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int pthread_mutex_lock(pthread_mutex_t *);
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int pthread_mutex_unlock(pthread_mutex_t *);
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int pthread_mutex_trylock(pthread_mutex_t *);
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int pthread_mutex_timedlock(pthread_mutex_t *__restrict, const struct timespec *__restrict);
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int pthread_mutex_destroy(pthread_mutex_t *);
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int pthread_mutex_consistent(pthread_mutex_t *);
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int pthread_mutex_getprioceiling(const pthread_mutex_t *__restrict, int *__restrict);
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int pthread_mutex_setprioceiling(pthread_mutex_t *__restrict, int, int *__restrict);
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int pthread_cond_init(pthread_cond_t *__restrict, const pthread_condattr_t *__restrict);
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int pthread_cond_destroy(pthread_cond_t *);
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int pthread_cond_wait(pthread_cond_t *__restrict, pthread_mutex_t *__restrict);
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int pthread_cond_timedwait(pthread_cond_t *__restrict, pthread_mutex_t *__restrict, const struct timespec *__restrict);
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int pthread_cond_broadcast(pthread_cond_t *);
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int pthread_cond_signal(pthread_cond_t *);
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int pthread_rwlock_init(pthread_rwlock_t *__restrict, const pthread_rwlockattr_t *__restrict);
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int pthread_rwlock_destroy(pthread_rwlock_t *);
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int pthread_rwlock_rdlock(pthread_rwlock_t *);
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int pthread_rwlock_tryrdlock(pthread_rwlock_t *);
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int pthread_rwlock_timedrdlock(pthread_rwlock_t *__restrict, const struct timespec *__restrict);
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int pthread_rwlock_wrlock(pthread_rwlock_t *);
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int pthread_rwlock_trywrlock(pthread_rwlock_t *);
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int pthread_rwlock_timedwrlock(pthread_rwlock_t *__restrict, const struct timespec *__restrict);
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int pthread_rwlock_unlock(pthread_rwlock_t *);
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int pthread_spin_init(pthread_spinlock_t *, int);
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int pthread_spin_destroy(pthread_spinlock_t *);
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int pthread_spin_lock(pthread_spinlock_t *);
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int pthread_spin_trylock(pthread_spinlock_t *);
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int pthread_spin_unlock(pthread_spinlock_t *);
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int pthread_barrier_init(pthread_barrier_t *__restrict, const pthread_barrierattr_t *__restrict, unsigned);
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int pthread_barrier_destroy(pthread_barrier_t *);
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int pthread_barrier_wait(pthread_barrier_t *);
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int pthread_key_create(pthread_key_t *, void (*)(void *));
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int pthread_key_delete(pthread_key_t);
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void *pthread_getspecific(pthread_key_t);
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int pthread_setspecific(pthread_key_t, const void *);
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int pthread_attr_init(pthread_attr_t *);
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int pthread_attr_destroy(pthread_attr_t *);
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int pthread_attr_getguardsize(const pthread_attr_t *__restrict, size_t *__restrict);
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int pthread_attr_setguardsize(pthread_attr_t *, size_t);
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int pthread_attr_getstacksize(const pthread_attr_t *__restrict, size_t *__restrict);
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int pthread_attr_setstacksize(pthread_attr_t *, size_t);
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int pthread_attr_getdetachstate(const pthread_attr_t *, int *);
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int pthread_attr_setdetachstate(pthread_attr_t *, int);
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int pthread_attr_getstack(const pthread_attr_t *__restrict, void **__restrict, size_t *__restrict);
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int pthread_attr_setstack(pthread_attr_t *, void *, size_t);
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int pthread_attr_getscope(const pthread_attr_t *__restrict, int *__restrict);
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int pthread_attr_setscope(pthread_attr_t *, int);
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int pthread_attr_getschedpolicy(const pthread_attr_t *__restrict, int *__restrict);
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int pthread_attr_setschedpolicy(pthread_attr_t *, int);
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#ifdef __wasilibc_unmodified_upstream /* WASI has no CPU scheduling support. */
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int pthread_attr_getschedparam(const pthread_attr_t *__restrict, struct sched_param *__restrict);
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int pthread_attr_setschedparam(pthread_attr_t *__restrict, const struct sched_param *__restrict);
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#endif
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int pthread_attr_getinheritsched(const pthread_attr_t *__restrict, int *__restrict);
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int pthread_attr_setinheritsched(pthread_attr_t *, int);
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int pthread_mutexattr_destroy(pthread_mutexattr_t *);
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int pthread_mutexattr_getprioceiling(const pthread_mutexattr_t *__restrict, int *__restrict);
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int pthread_mutexattr_getprotocol(const pthread_mutexattr_t *__restrict, int *__restrict);
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int pthread_mutexattr_getpshared(const pthread_mutexattr_t *__restrict, int *__restrict);
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int pthread_mutexattr_getrobust(const pthread_mutexattr_t *__restrict, int *__restrict);
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int pthread_mutexattr_gettype(const pthread_mutexattr_t *__restrict, int *__restrict);
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int pthread_mutexattr_init(pthread_mutexattr_t *);
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int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *, int);
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int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int);
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int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int);
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int pthread_mutexattr_setrobust(pthread_mutexattr_t *, int);
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int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
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int pthread_condattr_init(pthread_condattr_t *);
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int pthread_condattr_destroy(pthread_condattr_t *);
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int pthread_condattr_setclock(pthread_condattr_t *, clockid_t);
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int pthread_condattr_setpshared(pthread_condattr_t *, int);
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int pthread_condattr_getclock(const pthread_condattr_t *__restrict, clockid_t *__restrict);
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int pthread_condattr_getpshared(const pthread_condattr_t *__restrict, int *__restrict);
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int pthread_rwlockattr_init(pthread_rwlockattr_t *);
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int pthread_rwlockattr_destroy(pthread_rwlockattr_t *);
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int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
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int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *__restrict, int *__restrict);
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int pthread_barrierattr_destroy(pthread_barrierattr_t *);
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int pthread_barrierattr_getpshared(const pthread_barrierattr_t *__restrict, int *__restrict);
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int pthread_barrierattr_init(pthread_barrierattr_t *);
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int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
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int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
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int pthread_getconcurrency(void);
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int pthread_setconcurrency(int);
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int pthread_getcpuclockid(pthread_t, clockid_t *);
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struct __ptcb {
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void (*__f)(void *);
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void *__x;
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struct __ptcb *__next;
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};
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void _pthread_cleanup_push(struct __ptcb *, void (*)(void *), void *);
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void _pthread_cleanup_pop(struct __ptcb *, int);
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#define pthread_cleanup_push(f, x) do { struct __ptcb __cb; _pthread_cleanup_push(&__cb, f, x);
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#define pthread_cleanup_pop(r) _pthread_cleanup_pop(&__cb, (r)); } while(0)
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#ifdef _GNU_SOURCE
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struct cpu_set_t;
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int pthread_getaffinity_np(pthread_t, size_t, struct cpu_set_t *);
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int pthread_setaffinity_np(pthread_t, size_t, const struct cpu_set_t *);
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int pthread_getattr_np(pthread_t, pthread_attr_t *);
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int pthread_setname_np(pthread_t, const char *);
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int pthread_getname_np(pthread_t, char *, size_t);
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int pthread_getattr_default_np(pthread_attr_t *);
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int pthread_setattr_default_np(const pthread_attr_t *);
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int pthread_tryjoin_np(pthread_t, void **);
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int pthread_timedjoin_np(pthread_t, void **, const struct timespec *);
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#endif
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#if _REDIR_TIME64
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__REDIR(pthread_mutex_timedlock, __pthread_mutex_timedlock_time64);
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__REDIR(pthread_cond_timedwait, __pthread_cond_timedwait_time64);
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__REDIR(pthread_rwlock_timedrdlock, __pthread_rwlock_timedrdlock_time64);
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__REDIR(pthread_rwlock_timedwrlock, __pthread_rwlock_timedwrlock_time64);
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#ifdef _GNU_SOURCE
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__REDIR(pthread_timedjoin_np, __pthread_timedjoin_np_time64);
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#endif
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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