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-rw-r--r--libc/sysdeps/linux/common/bits/uClibc_mutex.h2
-rw-r--r--libc/sysdeps/linux/common/bits/uClibc_pthread.h20
2 files changed, 16 insertions, 6 deletions
diff --git a/libc/sysdeps/linux/common/bits/uClibc_mutex.h b/libc/sysdeps/linux/common/bits/uClibc_mutex.h
index 45b4b07df..257571efc 100644
--- a/libc/sysdeps/linux/common/bits/uClibc_mutex.h
+++ b/libc/sysdeps/linux/common/bits/uClibc_mutex.h
@@ -36,7 +36,7 @@
struct _pthread_cleanup_buffer __infunc_pthread_cleanup_buffer; \
if (C) { \
_pthread_cleanup_push_defer(&__infunc_pthread_cleanup_buffer, \
- __pthread_mutex_unlock, \
+ __uclibc_mutex_unlock, \
&(M)); \
__pthread_mutex_lock(&(M)); \
} \
diff --git a/libc/sysdeps/linux/common/bits/uClibc_pthread.h b/libc/sysdeps/linux/common/bits/uClibc_pthread.h
index 3d25ac4e8..367f380af 100644
--- a/libc/sysdeps/linux/common/bits/uClibc_pthread.h
+++ b/libc/sysdeps/linux/common/bits/uClibc_pthread.h
@@ -28,11 +28,21 @@
#endif
#if defined _LIBC && (defined IS_IN_libc || defined NOT_IN_libc)
-extern int __pthread_mutex_init (pthread_mutex_t *__restrict __mutex,
- __const pthread_mutexattr_t *__restrict __mutex_attr) attribute_hidden;
-extern int __pthread_mutex_trylock (pthread_mutex_t *__mutex) attribute_hidden;
-extern int __pthread_mutex_lock (pthread_mutex_t *__mutex) attribute_hidden;
-extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex) attribute_hidden;
+/* Threading functions internal to uClibc. Make these thread functions
+ * weak so that we can elide them from single-threaded processes. */
+extern int weak_function __pthread_mutex_init (pthread_mutex_t *__mutex,
+ __const pthread_mutexattr_t *__mutex_attr);
+extern int weak_function __pthread_mutex_destroy (pthread_mutex_t *__mutex);
+extern int weak_function __pthread_mutex_lock (pthread_mutex_t *__mutex);
+extern int weak_function __pthread_mutex_unlock (pthread_mutex_t *__mutex);
+extern void __uclibc_mutex_unlock (void *) attribute_hidden;
+extern int weak_function __pthread_mutex_trylock (pthread_mutex_t *__mutex);
+extern void weak_function _pthread_cleanup_push_defer (
+ struct _pthread_cleanup_buffer *__buffer,
+ void (*__routine) (void *), void *__arg);
+extern void weak_function _pthread_cleanup_pop_restore (
+ struct _pthread_cleanup_buffer *__buffer,
+ int __execute);
#endif
#endif