diff mbox series

[PULL,v3,11/20] linux-user: add gcov support to preexit_cleanup

Message ID 20180705160329.30386-12-alex.bennee@linaro.org
State Accepted
Commit 7781afb49cdcc41b5cd06d4daa53aa1bc45f95ac
Headers show
Series Travis, Code Coverage and Cross Build updates | expand

Commit Message

Alex Bennée July 5, 2018, 4:03 p.m. UTC 
As we don't always take the normal exit path when running a guest we
can skip the normal exit destructors where gcov normally dumps it's
info. The GCC manual suggests long running programs use __gcov_dump()
to flush out the coverage state periodically so we use that here.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>


-- 
2.17.1
diff mbox series

Patch

diff --git a/linux-user/exit.c b/linux-user/exit.c
index aed8713fae..14e94e28fa 100644
--- a/linux-user/exit.c
+++ b/linux-user/exit.c
@@ -19,10 +19,17 @@ 
 #include "qemu/osdep.h"
 #include "qemu.h"
 
+#ifdef CONFIG_GCOV
+extern void __gcov_dump(void);
+#endif
+
 void preexit_cleanup(CPUArchState *env, int code)
 {
 #ifdef TARGET_GPROF
         _mcleanup();
+#endif
+#ifdef CONFIG_GCOV
+        __gcov_dump();
 #endif
         gdb_exit(env, code);
 }