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-rw-r--r--udevd.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/udevd.c b/udevd.c
index eb632bd8..3adedac0 100644
--- a/udevd.c
+++ b/udevd.c
@@ -45,6 +45,7 @@
#include "udevd.h"
#include "udev_selinux.h"
+static int debug_trace;
static int verbose;
static struct udev_rules rules;
@@ -307,6 +308,15 @@ static void msg_queue_insert(struct udevd_uevent_msg *msg)
export_event_state(msg, EVENT_QUEUED);
+ /* run one event after the other in debug mode */
+ if (debug_trace) {
+ list_add_tail(&msg->node, &running_list);
+ udev_event_run(msg);
+ waitpid(msg->pid, NULL, 0);
+ msg_queue_delete(msg);
+ return;
+ }
+
/* run all events with a timeout set immediately */
if (msg->timeout != 0) {
list_add_tail(&msg->node, &running_list);
@@ -930,6 +940,7 @@ int main(int argc, char *argv[], char *envp[])
int option;
static const struct option options[] = {
{ "daemon", 0, NULL, 'd' },
+ { "debug-trace", 0, NULL, 't' },
{ "verbose", 0, NULL, 'v' },
{ "help", 0, NULL, 'h' },
{}
@@ -952,13 +963,16 @@ int main(int argc, char *argv[], char *envp[])
case 'd':
daemonize = 1;
break;
+ case 't':
+ debug_trace = 1;
+ break;
case 'v':
verbose = 1;
if (udev_log_priority < LOG_INFO)
udev_log_priority = LOG_INFO;
break;
case 'h':
- printf("Usage: udevd [--help] [--daemon] [--verbose]\n");
+ printf("Usage: udevd [--help] [--daemon] [--debug-trace] [--verbose]\n");
goto exit;
default:
goto exit;
@@ -1128,6 +1142,8 @@ int main(int argc, char *argv[], char *envp[])
/* export log_priority , as called programs may want to follow that setting */
sprintf(udev_log, "UDEV_LOG=%i", udev_log_priority);
putenv(udev_log);
+ if (debug_trace)
+ putenv("DEBUG=1");
maxfd = udevd_sock;
maxfd = UDEV_MAX(maxfd, uevent_netlink_sock);