criu: call compel_log_init() at start

Otherwise, messages printed by libcompel are omitted from logs.

Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

criu/crtools.c

@@ -706,6 +706,7 @@ int main(int argc, char *argv[], char *envp[])
 	if (log_init(opts.output))
 		return 1;
 	libsoccr_set_log(log_level, print_on_level);
+	compel_log_init(vprint_on_level, log_get_loglevel());
 
 	pr_debug("Version: %s (gitid %s)\n", CRIU_VERSION, CRIU_GITID);
 	if (opts.deprecated_ok)

criu/include/log.h

@@ -7,6 +7,10 @@
 
 #include <string.h>
 #include <errno.h>
+#include <stdarg.h>
+
+extern void vprint_on_level(unsigned int loglevel, const char *format,
+		va_list params);
 
 #endif /* CR_NOGLIBC */
 

criu/log.c

@@ -209,7 +209,7 @@ unsigned int log_get_loglevel(void)
 	return current_loglevel;
 }
 
-static void __print_on_level(unsigned int loglevel, const char *format, va_list params)
+void vprint_on_level(unsigned int loglevel, const char *format, va_list params)
 {
 	int fd, size, ret, off = 0;
 	int __errno = errno;
@@ -246,7 +246,7 @@ void print_on_level(unsigned int loglevel, const char *format, ...)
 	va_list params;
 
 	va_start(params, format);
-	__print_on_level(loglevel, format, params);
+	vprint_on_level(loglevel, format, params);
 	va_end(params);
 }