Add ability to adjust init log level at runtime.
+ Add a new property, sys.init_log_level, which can be set after init
bootstrap. This will control the level at which init does prints to klog.
Change-Id: Ia15b2110157b5e6b713785ece9b0fb94889be6c8
diff --git a/init/builtins.c b/init/builtins.c
index 0c32b2a..b32981e 100644
--- a/init/builtins.c
+++ b/init/builtins.c
@@ -862,11 +862,24 @@
}
int do_loglevel(int nargs, char **args) {
- if (nargs == 2) {
- klog_set_level(atoi(args[1]));
- return 0;
+ int log_level;
+ char log_level_str[PROP_VALUE_MAX] = "";
+ if (nargs != 2) {
+ ERROR("loglevel: missing argument\n");
+ return -EINVAL;
}
- return -1;
+
+ if (expand_props(log_level_str, args[1], sizeof(log_level_str))) {
+ ERROR("loglevel: cannot expand '%s'\n", args[1]);
+ return -EINVAL;
+ }
+ log_level = atoi(log_level_str);
+ if (log_level < KLOG_ERROR_LEVEL || log_level > KLOG_DEBUG_LEVEL) {
+ ERROR("loglevel: invalid log level'%d'\n", log_level);
+ return -EINVAL;
+ }
+ klog_set_level(log_level);
+ return 0;
}
int do_load_persist_props(int nargs, char **args) {