[Skiboot] [PATCH] external/mambo: Add an option to exit Mambo when the system is shutdown

[Alistair Popple]

Automatically exiting can be convenient for scripting. Will also exit
due to a HW crash (eg. unhandled exception).

Signed-off-by: Alistair Popple <alistair at popple.id.au>
---
 external/mambo/README.md   | 5 +++++
 external/mambo/skiboot.tcl | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/external/mambo/README.md b/external/mambo/README.md
index 750a81e4..a11fe4ae 100644
--- a/external/mambo/README.md
+++ b/external/mambo/README.md
@@ -47,6 +47,11 @@ export SKIBOOT_INITRD=$HOME/src/op-build/output/images/rootfs.cpio.xz
 export SKIBOOT=$HOME/src/skiboot/skiboot.lid
 export SKIBOOT_AUTORUN=1
 ```
+If you want Mambo to autmatically exit when the system is shutdown (or
+has a HW crash) use this:
+```
+export SKIBOOT_AUTORUN=2
+```
 
 ### Run the simulator
 ```
diff --git a/external/mambo/skiboot.tcl b/external/mambo/skiboot.tcl
index 25414450..62c21897 100644
--- a/external/mambo/skiboot.tcl
+++ b/external/mambo/skiboot.tcl
@@ -568,3 +568,7 @@ if { [info exists env(SKIBOOT_AUTORUN)] } {
 	readline
     }
 }
+
+if { $env(SKIBOOT_AUTORUN) == 2 } {
+    quit
+}
-- 
2.11.0