kern: Make kernel task available to bootscript.

* kern/bootstrap.c (bootstrap_create): Insert the variable
'kernel-task' into the bootscript environment.  Userspace can use this
instead of guessing based on the order of the first tasks.

1 files changed, 6 insertions, 0 deletions

diff --git a/kern/bootstrap.c b/kern/bootstrap.c
index 7398ea44..c21d3b1c 100644
--- a/kern/bootstrap.c
+++ b/kern/bootstrap.c
@@ -180,6 +180,12 @@ void bootstrap_create(void)
       if (losers)
 	panic ("cannot set boot-script variable device-port: %s",
 	       boot_script_error_string (losers));
+      losers = boot_script_set_variable
+	("kernel-task", VAL_PORT,
+	 (long) kernel_task->itk_self);
+      if (losers)
+	panic ("cannot set boot-script variable kernel-task: %s",
+	       boot_script_error_string (losers));
 
       losers = boot_script_set_variable ("kernel-command-line", VAL_STR,
 					 (long) kernel_cmdline);