On 10/7/2015 5:04 PM, Jeff Johnston wrote:
I am ok with this although I would like to hear that at least RTEMS or another
configuration
supports or plans to support threads.h and functions. C11 says that the flag
__STDC_NO_THREADS__
can be used to indicate that threads.h and the functions are missing.
RTEMS has support for C11 threads as well as C++11 threads. The work
may not be 100% complete at the moment but it is getting there.
FWIW Sebastian has run OpenMP on a 24-core PowerPC RTEMS system and
after some optimizations in the target specific adapter code, it
performs very well.
If I understated or overstated, I am sure Sebastian will correct me but
things are looking good for C11 and C++11 and RTEMS.
--joel
-- Jeff J.
- Original Message -
Import from latest FreeBSD. Move types and defines to
so that it can be customized per target.
newlib/ChangeLog
2015-09-21 Sebastian Huber
* libc/include/threads.h: New.
* libc/sys/rtems/include/machine/_threads.h: Likewise.
---
newlib/libc/include/threads.h| 93
newlib/libc/sys/rtems/include/machine/_threads.h | 54 ++
2 files changed, 147 insertions(+)
create mode 100644 newlib/libc/include/threads.h
create mode 100644 newlib/libc/sys/rtems/include/machine/_threads.h
diff --git a/newlib/libc/include/threads.h b/newlib/libc/include/threads.h
new file mode 100644
index 000..9fb08b0
--- /dev/null
+++ b/newlib/libc/include/threads.h
@@ -0,0 +1,93 @@
+/*-
+ * Copyright (c) 2011 Ed Schouten
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *notice, this list of conditions and the following disclaimer in the
+ *documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _THREADS_H_
+#define_THREADS_H_
+
+#include
+#include
+
+typedef void (*tss_dtor_t)(void *);
+typedef int (*thrd_start_t)(void *);
+
+enum {
+ mtx_plain = 0x1,
+ mtx_recursive = 0x2,
+ mtx_timed = 0x4
+};
+
+enum {
+ thrd_busy = 1,
+ thrd_error = 2,
+ thrd_nomem = 3,
+ thrd_success = 4,
+ thrd_timedout = 5
+};
+
+#if !defined(__cplusplus) || __cplusplus < 201103L
+#definethread_local_Thread_local
+#endif
+
+__BEGIN_DECLS
+void call_once(once_flag *, void (*)(void));
+intcnd_broadcast(cnd_t *);
+void cnd_destroy(cnd_t *);
+intcnd_init(cnd_t *);
+intcnd_signal(cnd_t *);
+intcnd_timedwait(cnd_t *__restrict, mtx_t *__restrict __mtx,
+const struct timespec *__restrict)
+__requires_exclusive(*__mtx);
+intcnd_wait(cnd_t *, mtx_t *__mtx)
+__requires_exclusive(*__mtx);
+void mtx_destroy(mtx_t *__mtx)
+__requires_unlocked(*__mtx);
+intmtx_init(mtx_t *__mtx, int)
+__requires_unlocked(*__mtx);
+intmtx_lock(mtx_t *__mtx)
+__locks_exclusive(*__mtx);
+intmtx_timedlock(mtx_t *__restrict __mtx,
+const struct timespec *__restrict)
+__trylocks_exclusive(thrd_success, *__mtx);
+intmtx_trylock(mtx_t *__mtx)
+__trylocks_exclusive(thrd_success, *__mtx);
+intmtx_unlock(mtx_t *__mtx)
+__unlocks(*__mtx);
+intthrd_create(thrd_t *, thrd_start_t, void *);
+thrd_t thrd_current(void);
+intthrd_detach(thrd_t);
+intthrd_equal(thrd_t, thrd_t);
+_Noreturn void
+ thrd_exit(int);
+intthrd_join(thrd_t, int *);
+intthrd_sleep(const struct timespec *, struct timespec *);
+void thrd_yield(void);
+inttss_create(tss_t *, tss_dtor_t);
+void tss_delete(tss_t);
+void * tss_get(tss_t);
+inttss_set(tss_t, void *);
+__END_DECLS
+
+#endif /* !_THREADS_H_ */
diff --git a/newlib/libc/sys/rtems/include/machine/_threads.h
b/newlib/libc/sys/rtems/include/machine/_threads.h
new file mode 100644
index 000..24db21c
--- /dev/null
+++ b/newlib/libc/sys/rtems/include/machine/_threads.h
@@ -0,0 +1,54 @
