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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /tools/perf/util/usage.c
parentInitial commit. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--tools/perf/util/usage.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/perf/util/usage.c b/tools/perf/util/usage.c
new file mode 100644
index 000000000..196438ee4
--- /dev/null
+++ b/tools/perf/util/usage.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * usage.c
+ *
+ * Various reporting routines.
+ * Originally copied from GIT source.
+ *
+ * Copyright (C) Linus Torvalds, 2005
+ */
+#include "util.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/compiler.h>
+
+static __noreturn void usage_builtin(const char *err)
+{
+ fprintf(stderr, "\n Usage: %s\n", err);
+ exit(129);
+}
+
+/* If we are in a dlopen()ed .so write to a global variable would segfault
+ * (ugh), so keep things static. */
+static void (*usage_routine)(const char *err) __noreturn = usage_builtin;
+
+void usage(const char *err)
+{
+ usage_routine(err);
+}