Merge pull request #17944 from ktopley-apple/ktopley-oslog-rdar40626177

ktopley-apple · web-flow · commit 53e039b04927 · 2018-07-18T08:02:07.000-07:00
Fix warning for uninitialized va_list variable.
diff --git a/stdlib/public/SDK/os/os.m b/stdlib/public/SDK/os/os.m
@@ -161,6 +161,6 @@
     const char * _Nonnull spnm,
     os_signpost_id_t spid)
 {
-  va_list x;
+  static va_list x;
   _swift_os_signpost_with_format(dso, ra, h, spty, spnm, spid, NULL, x);
 }

Original file line number	Diff line number	Diff line change
`@@ -161,6 +161,6 @@`
`161`	`161`	`const char * _Nonnull spnm,`
`162`	`162`	`os_signpost_id_t spid)`
`163`	`163`	`{`
`164`		`- va_list x;`
	`164`	`+ static va_list x;`
`165`	`165`	`_swift_os_signpost_with_format(dso, ra, h, spty, spnm, spid, NULL, x);`
`166`	`166`	`}`