From 1d3e53ba7cc9563926a5984d10e5923114f5a3c6 Mon Sep 17 00:00:00 2001 From: li-tao116 Date: Wed, 19 Jul 2023 19:07:23 -0700 Subject: [PATCH] Optimize pthread_mutex_init and pthread_rwlock_init Use __builtin_memset to init pthread_mutex_t and pthread_rwlock_t. Issue: #I7MIQ5 Test: libctest, benchmark Signed-off-by: litao Change-Id: I5744c6cf27e9deff551f20b3dd663648420b4330 --- musl_src.gni | 2 ++ porting/linux/user/src/thread/pthread_mutex_init.c | 8 ++++++++ porting/linux/user/src/thread/pthread_rwlock_init.c | 8 ++++++++ 3 files changed, 18 insertions(+) create mode 100644 porting/linux/user/src/thread/pthread_mutex_init.c create mode 100644 porting/linux/user/src/thread/pthread_rwlock_init.c diff --git a/musl_src.gni b/musl_src.gni index 2e0a7596..21e78ff4 100644 --- a/musl_src.gni +++ b/musl_src.gni @@ -2119,9 +2119,11 @@ musl_src_porting_file = [ "src/thread/pthread_mutex_lock.c", "src/thread/pthread_mutex_timedlock_monotonic_np.c", "src/thread/pthread_mutex_lock_timeout_np.c", + "src/thread/pthread_mutex_init.c", "src/thread/pthread_rwlock_clockrdlock.c", "src/thread/pthread_rwlock_timedrdlock.c", "src/thread/pthread_rwlock_timedrdlock_monotonic_np.c", + "src/thread/pthread_rwlock_init.c", "src/thread/pthread_cond_timedwait_monotonic_np.c", "src/thread/pthread_cond_timeout_np.c", "src/thread/pthread_cond_clockwait.c", diff --git a/porting/linux/user/src/thread/pthread_mutex_init.c b/porting/linux/user/src/thread/pthread_mutex_init.c new file mode 100644 index 00000000..f606428d --- /dev/null +++ b/porting/linux/user/src/thread/pthread_mutex_init.c @@ -0,0 +1,8 @@ +#include "pthread_impl.h" + +int pthread_mutex_init(pthread_mutex_t *restrict m, const pthread_mutexattr_t *restrict a) +{ + __builtin_memset(m, 0, sizeof(pthread_mutex_t)); + if (a) m->_m_type = a->__attr; + return 0; +} diff --git a/porting/linux/user/src/thread/pthread_rwlock_init.c b/porting/linux/user/src/thread/pthread_rwlock_init.c new file mode 100644 index 00000000..27cf8723 --- /dev/null +++ b/porting/linux/user/src/thread/pthread_rwlock_init.c @@ -0,0 +1,8 @@ +#include "pthread_impl.h" + +int pthread_rwlock_init(pthread_rwlock_t *restrict rw, const pthread_rwlockattr_t *restrict a) +{ + __builtin_memset(rw, 0, sizeof(pthread_rwlock_t)); + if (a) rw->_rw_shared = a->__attr[0]*128; + return 0; +} -- GitLab