usterr.h: print function name

diff --git a/include/usterr.h b/include/usterr.h
index 12a4214028eb45a1f9d5b8a1c27d8bfb752d4e5e..87e4e7f2331dce57c3208d7be4b19ca0cb740cc0 100644 (file)
--- a/include/usterr.h
+++ b/include/usterr.h
@@ -46,7 +46,7 @@
 
 #define UST_STR_COMPONENT XSTR(UST_COMPONENT)
 
-#define ERRMSG(fmt, args...) do { sigsafe_print_err(UST_STR_COMPONENT "[%ld/%ld]: " fmt " (" __FILE__ ":" XSTR(__LINE__) ")\n", (long) getpid(), (long) syscall(SYS_gettid), ## args); fflush(stderr); } while(0)
+#define ERRMSG(fmt, args...) do { sigsafe_print_err(UST_STR_COMPONENT "[%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" XSTR(__LINE__) ")\n", (long) getpid(), (long) syscall(SYS_gettid), ## args, __func__); fflush(stderr); } while(0)
 
 #ifdef UST_DEBUG
 # define DBG(fmt, args...) ERRMSG(fmt, ## args)