linux-kernel - [PATCH nolibc 26/61] tools/nolibc/stdlib: make raise() use the lower level syscalls only

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Date:   Mon, 18 Apr 2022 17:41:50 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     gwml@...r.gnuweeb.org, kernel-team@...com, w@....eu,
        Willy Tarreau <w@....eu>,
        "Paul E . McKenney" <paulmck@...nel.org>
Subject: [PATCH nolibc 26/61] tools/nolibc/stdlib: make raise() use the lower level syscalls only

From: Willy Tarreau <w@....eu>

raise() doesn't set errno, so there's no point calling kill(), better
call sys_kill(), which also reduces the function's size.

Signed-off-by: Willy Tarreau <w@....eu>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 tools/include/nolibc/stdlib.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/include/nolibc/stdlib.h b/tools/include/nolibc/stdlib.h
index db47362a750f..4cc1fdf6791e 100644
--- a/tools/include/nolibc/stdlib.h
+++ b/tools/include/nolibc/stdlib.h
@@ -317,7 +317,7 @@ int msleep(unsigned int msecs)
 __attribute__((weak,unused))
 int raise(int signal)
 {
-	return kill(getpid(), signal);
+	return sys_kill(sys_getpid(), signal);
 }
 
 static __attribute__((unused))
-- 
2.31.1.189.g2e36527f23