[NaCl SDK] Add launcher script for sel_ldr.

This script simplifies the process of running .nexe files
under the sel_ldr in the SDK.  It uses sensible defaults for
things like the IRT location and library paths.  It can also
determine which version of the sel_ldr to run according to
that architecture of the .nexe.

Make common.mk aware of SEL_LDR=1 environment variable.  In
this case SEL_LDR is defined (so code an detect it) and
'make run' will run the sel_ldr rather than chrome.

Run sel_ldr based tests as part of test_sdk.  Currently
this is only simple_hello_world and nacl_io_test.

Distinguish between crashes and program exiting normally
in common.js (we can't distinguish if exitcode is -1 right
now).

Review URL: https://chromiumcodereview.appspot.com/18176014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@210236 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 2 deletions

diff --git a/native_client_sdk/src/examples/common.js b/native_client_sdk/src/examples/common.js
index e1bc06a..51a0164 100644
--- a/native_client_sdk/src/examples/common.js
+++ b/native_client_sdk/src/examples/common.js
@@ -96,7 +96,11 @@ var common = (function () {
    * This event listener is registered in attachDefaultListeners above.
    */
   function handleCrash(event) {
-    updateStatus('CRASHED')
+    if (common.naclModule.exitStatus == -1) {
+      updateStatus('CRASHED')
+    } else {
+      updateStatus('EXITED [' + common.naclModule.exitStatus + ']')
+    }
     if (typeof window.handleCrash !== 'undefined') {
       window.handleCrash(common.naclModule.lastError);
     }
@@ -109,7 +113,7 @@ var common = (function () {
    */
   function moduleDidLoad() {
     common.naclModule = document.getElementById('nacl_module');
-    updateStatus('SUCCESS');
+    updateStatus('RUNNING');
 
     if (typeof window.moduleDidLoad !== 'undefined') {
       window.moduleDidLoad();