From 941f558413e7cdaa8a566106021b81d419707cd9 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Thu, 7 Jun 2012 00:19:32 +0300
Subject: [PATCH] run_gingerbread: fix signal handling and exit

---
 pnd/gingerbread.pxml               |  2 +-
 pnd/{run.sh => run_gingerbread.sh} | 63 +++++++++++++++++++++---------
 scripts/make_pnd.sh                |  2 +-
 3 files changed, 46 insertions(+), 21 deletions(-)
 rename pnd/{run.sh => run_gingerbread.sh} (83%)

diff --git a/pnd/gingerbread.pxml b/pnd/gingerbread.pxml
index fec4c4f..77e70f3 100644
--- a/pnd/gingerbread.pxml
+++ b/pnd/gingerbread.pxml
@@ -17,7 +17,7 @@
     <description lang="en_US">The whole Android 2.3.4 (Gingerbread) OS fitted inside a PND</description>
   </descriptions>
 
-  <exec command="pandora/run.sh"/>
+  <exec command="pandora/run_gingerbread.sh"/>
 
   <icon src="pandora/gingerbread.png"/>
 
diff --git a/pnd/run.sh b/pnd/run_gingerbread.sh
similarity index 83%
rename from pnd/run.sh
rename to pnd/run_gingerbread.sh
index 98894e8..521dc97 100755
--- a/pnd/run.sh
+++ b/pnd/run_gingerbread.sh
@@ -1,18 +1,22 @@
 #!/bin/bash
-# run/kill Android from Linux
+# run/kill Android from Linux, the hackjob script
 # (c) Grazvydas "notaz" Ignotas, 2012
 set -e -x
 
 if [ "`id -u`" != "0" ]; then
-  gksudo -m "Android needs root privileges to run, please enter your password" $0
-  exit 0
+  # gksudo causes logging not to work somehow..
+  # so use it to only ask for password, use sudo to re-run the script
+  gksudo -m "Android needs root privileges to run, please enter your password" id
+  exec sudo -n $0
 fi
 
 root=/mnt/android
 mpoint_main=`pwd`
 kernel_ver=`uname -r`
+exitcode=1
 
-trap onexit 1 2 3 15 EXIT
+trap onexit INT QUIT TERM EXIT
+trap '' HUP
 
 err()
 {
@@ -46,22 +50,22 @@ onexit()
   
   sleep 0.5
   
-  for i in `seq 5`; do
+  for i in `seq 4`; do
     sdmounts=`grep -e '\.android_secure' -e 'secure/asec' -e 'mnt/sdcard' /proc/mounts`
     if [ -n "$sdmounts" ]; then
       echo "$sdmounts" | awk '{print $2}' | xargs umount
     fi
 
-    umount $root/mnt/asec
-    umount $root/debug
-    umount $root/dev/pts
-    umount $root/dev
-    umount $root/proc
-    umount $root/sys
-    umount $root/data
-    umount $root/system || umount -i $root/system
-  
-    sleep 1
+    omounts=`grep "$root/" /proc/mounts | awk '{print $2}'`
+    if [ -n "$omounts" ]; then
+      for m in $omounts; do
+        if ! umount $m; then
+          umount -i $m
+        fi
+      done
+    fi
+
+    sleep 0.5
     if umount $root; then
       break;
     fi
@@ -75,6 +79,24 @@ onexit()
     /etc/init.d/NetworkManager start
     /etc/init.d/slim-init start
   fi
+
+  if ! ps a | grep -q 'pnd_run.*run_gingerbread.sh'; then
+    # something killed pnd_run, have to clean up for it
+    cat > /tmp/clean_android.sh <<EOF
+      #!/bin/bash
+      trap '' HUP
+      sleep 3
+      umount $mpoint_main
+      umount $mpoint_main # needed twice??
+      losetup -a | awk -F ':' '{ print \$1 }' | xargs losetup -d 2> /dev/null
+      rm $0
+EOF
+    cd /tmp/
+    chmod +x /tmp/clean_android.sh
+    /tmp/clean_android.sh &
+    sleep 1
+  fi
+  exit $exitcode
 }
 
 
@@ -137,7 +159,7 @@ mount -o loop,rw,noatime rootfs.ext2 $root
 mount --bind $mpoint_main/system/ $root/system/
 mount -o loop,rw,noatime data.ext4 $root/data
 
-mkdir -p $root/vendor
+mkdir -p $root/vendor/
 
 # handle SGX
 mkdir -p $root/vendor/pvr
@@ -218,10 +240,10 @@ killall chvt 2> /dev/null || true
 ifconfig wlan0 down
 set -e
 
-cp /etc/pointercal $root/vendor/
-cp /lib/modules/$kernel_ver/kernel/drivers/net/wireless/wl1251/wl1251_sdio.ko $root/vendor/
+cp -v /etc/pointercal $root/vendor/
+cp -v /lib/modules/$kernel_ver/kernel/drivers/net/wireless/wl1251/wl1251_sdio.ko $root/vendor/
 mkdir -p $root/vendor/firmware
-cp /lib/firmware/brf6300.bin $root/vendor/firmware/
+cp -v /lib/firmware/brf6300.bin $root/vendor/firmware/
 
 # some cleanup
 rm -rf $root/acct/uid/*
@@ -246,3 +268,6 @@ done
 
 # real init can't be killed this way
 killall init
+
+# done, run exit handler indirectly
+exitcode=0
diff --git a/scripts/make_pnd.sh b/scripts/make_pnd.sh
index f53ef0b..944471d 100755
--- a/scripts/make_pnd.sh
+++ b/scripts/make_pnd.sh
@@ -29,7 +29,7 @@ tar xf /tmp/pnd_android/system.tar.bz2
 mkdir -p pandora/pvr
 cp ../../device/openpandora/pandora/pnd/gingerbread.png pandora/
 cp ../../device/openpandora/pandora/pnd/gingerbread.pxml pandora/
-cp ../../device/openpandora/pandora/pnd/run.sh pandora/
+cp ../../device/openpandora/pandora/pnd/run_gingerbread.sh pandora/
 cp ../../device/openpandora/pandora/pnd/readme.txt pandora/
 cp -r ../../device/openpandora/pandora/pvr/3* pandora/pvr/
 mv /tmp/pnd_android/rootfs.ext2 pandora/default_rootfs.ext2
-- 
2.39.5