diff mbox series

[v4,05/33] tools/nolibc: Implement gettid()

Message ID 20211021180722.3699248-6-broonie@kernel.org (mailing list archive)
State New
Headers show
Series arm64/sme: Initial support for the Scalable Matrix Extension | expand

Commit Message

Mark Brown Oct. 21, 2021, 6:06 p.m. UTC 
Allow test programs to determine their thread ID.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Willy Tarreau <w@1wt.eu>
---
 tools/include/nolibc/nolibc.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
diff mbox series

Patch

diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 3430667b0d24..fea8aace0119 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -1555,6 +1555,12 @@  pid_t sys_getpid(void)
 	return my_syscall0(__NR_getpid);
 }
 
+static __attribute__((unused))
+pid_t sys_gettid(void)
+{
+	return my_syscall0(__NR_gettid);
+}
+
 static __attribute__((unused))
 int sys_gettimeofday(struct timeval *tv, struct timezone *tz)
 {
@@ -2013,6 +2019,18 @@  pid_t getpid(void)
 	return ret;
 }
 
+static __attribute__((unused))
+pid_t gettid(void)
+{
+	pid_t ret = sys_gettid();
+
+	if (ret < 0) {
+		SET_ERRNO(-ret);
+		ret = -1;
+	}
+	return ret;
+}
+
 static __attribute__((unused))
 int gettimeofday(struct timeval *tv, struct timezone *tz)
 {