Improve init's debug printing.

+ Make prints of rc commands significantly more verbose. All commands
  will log all arguments, file/line number of the command, return value,
  and parent action which triggered the command.

init: command 'mount tmpfs tmpfs /mnt/obb mode=0755,gid=1000' action=init
      status=0 (/init.rc:89)
init: command 'setprop net.tcp.default_init_rwnd 60' action=boot status=0
      (/init.rc:403)

Change-Id: I5498c7258e4891706be4a12546df4231d14d86c4

1 files changed, 6 insertions, 2 deletions

diff --git a/init/init.h b/init/init.h
index c2419123a..a7615a367 100644
--- a/init/init.h
+++ b/init/init.h
@@ -29,10 +29,14 @@ struct command
     struct listnode clist;
 
     int (*func)(int nargs, char **args);
+
+    int line;
+    const char *filename;
+
     int nargs;
     char *args[1];
 };
-    
+
 struct action {
         /* node in list of all actions */
     struct listnode alist;
@@ -43,7 +47,7 @@ struct action {
 
     unsigned hash;
     const char *name;
-    
+
     struct listnode commands;
     struct command *current;
 };