From: Mark Brown <broonie@kernel.org>
Date: Sun, 24 Oct 2021 17:43:23 +0000 (+0200)
Subject: tools/nolibc: Implement gettid()
X-Git-Tag: v6.1-rc5~2296^2^6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b0fe9dec66370cef23e9c281d229f4c44f84cfa2;p=platform%2Fkernel%2Flinux-starfive.git

tools/nolibc: Implement gettid()

Allow test programs to determine their thread ID.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---

diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 4988866..c1c285f 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -1572,6 +1572,12 @@ pid_t sys_getpid(void)
 }
 
 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)
 {
 	return my_syscall2(__NR_gettimeofday, tv, tz);
@@ -2030,6 +2036,18 @@ pid_t getpid(void)
 }
 
 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)
 {
 	int ret = sys_gettimeofday(tv, tz);