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commit bf8446e235c8767f2da656ae2d0490d58f294d4e
Author: chao.an <anc...@xiaomi.com>
AuthorDate: Mon Sep 14 19:57:24 2020 +0800
sched/task: Implement gettid(2) syscall
See the reference here:
https://man7.org/linux/man-pages/man2/gettid.2.html
Change-Id: Ia814d0ccc3b20d8dfc36c809682ddf6e21811d20
Signed-off-by: chao.an <anc...@xiaomi.com>
---
include/unistd.h | 1 +
sched/task/Make.defs | 2 +-
sched/task/task_gettid.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++
syscall/syscall.csv | 1 +
4 files changed, 52 insertions(+), 1 deletion(-)
diff --git a/include/unistd.h b/include/unistd.h
index afb14f2..51ce8f0 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -308,6 +308,7 @@ EXTERN int optopt; /* Unrecognized option character */
pid_t vfork(void);
pid_t getpid(void);
+pid_t gettid(void);
void _exit(int status) noreturn_function;
unsigned int sleep(unsigned int seconds);
int usleep(useconds_t usec);
diff --git a/sched/task/Make.defs b/sched/task/Make.defs
index 1fa00c7..46dc859 100644
--- a/sched/task/Make.defs
+++ b/sched/task/Make.defs
@@ -37,7 +37,7 @@ CSRCS += task_create.c task_init.c task_setup.c
task_activate.c
CSRCS += task_start.c task_delete.c task_exit.c task_exithook.c
CSRCS += task_getgroup.c task_getpid.c task_prctl.c task_recover.c
CSRCS += task_restart.c task_spawnparms.c task_setcancelstate.c
-CSRCS += task_cancelpt.c task_terminate.c exit.c
+CSRCS += task_cancelpt.c task_terminate.c task_gettid.c exit.c
ifeq ($(CONFIG_ARCH_HAVE_VFORK),y)
ifeq ($(CONFIG_SCHED_WAITPID),y)
diff --git a/sched/task/task_gettid.c b/sched/task/task_gettid.c
new file mode 100644
index 0000000..50ff087
--- /dev/null
+++ b/sched/task/task_gettid.c
@@ -0,0 +1,49 @@
+/****************************************************************************
+ * sched/task/task_gettid.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/types.h>
+#include <unistd.h>
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: gettid
+ *
+ * Description:
+ * Get the thread ID of the currently executing thread.
+ *
+ * Input parameters:
+ * None
+ *
+ * Returned Value:
+ * On success, returns the thread ID of the calling process.
+ *
+ ****************************************************************************/
+
+pid_t gettid(void)
+{
+ return getpid();
+}
diff --git a/syscall/syscall.csv b/syscall/syscall.csv
index ca91a51..ac544aa 100644
--- a/syscall/syscall.csv
+++ b/syscall/syscall.csv
@@ -35,6 +35,7 @@
"getitimer","sys/time.h","!defined(CONFIG_DISABLE_POSIX_TIMERS)","int","int","FAR
struct itimerval *"
"getpeername","sys/socket.h","defined(CONFIG_NET)","int","int","FAR struct
sockaddr *","FAR socklen_t *"
"getpid","unistd.h","","pid_t"
+"gettid","unistd.h","","pid_t"
"getrandom","sys/random.h","defined(CONFIG_CRYPTO_RANDOM_POOL)","void","FAR
void *","size_t"
"getsockname","sys/socket.h","defined(CONFIG_NET)","int","int","FAR struct
sockaddr *","FAR socklen_t *"
"getsockopt","sys/socket.h","defined(CONFIG_NET)","int","int","int","int","FAR
void *","FAR socklen_t *"
