Enable build dir outside of the poky directory

You need to first set up the build directory by sourcing the poky build script,
after that builds can be run in that directory so long as bitbake is in $PATH
removing the need to source the init script for each build.

i.e:
$ . poky-init-build-env ~/my-build
$ bitbake some-image
<<later, in a different shell>>
$ cd ~/my-build
$ export PATH=/path/to/bitbake/bin:$PATH
$ bitbake an-image

This patch also removes use of OEROOT in recipes, etc.

Signed-off-by: Joshua Lock <josh@linux.intel.com>

1 files changed, 31 insertions, 19 deletions

diff --git a/scripts/runqemu b/scripts/runqemu
index c7c51ec77a..bb26f8b633 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -19,11 +19,23 @@
 
 
 if [ "x$BUILDDIR" = "x" ]; then
-    echo "You need to source poky-init-build-env before running this script"
-    exit 1
+    # BUILDDIR unset, try and get TMPDIR from bitbake
+    type -P bitbake &>/dev/null || {
+        echo "You either need bitbake in your PATH or to source poky-init-build-env before running this script" >&2; exit 1; }
+
+    # we have bitbake in PATH, get TMPDIR from the environment
+    TMPDIR=`bitbake -e | grep TMPDIR=\" | cut -d '=' -f2 | cut -d '"' -f2`
+else
+    TMPDIR=$BUILDDIR/tmp
+fi
+
+if ! (test -d "$TMPDIR"); then
+    echo >&2 "Error: no $TMPDIR directory, please re-run the script from the Poky build directory."
+    return
 fi
 
-INTERNAL_SCRIPT=`which poky-qemu-internal`
+SCRIPTSDIR=`dirname "$0"`
+INTERNAL_SCRIPT=SCRIPTSDIR/poky-qemu-internal`
 
 if [ "x$1" = "x" ]; then
     echo
@@ -67,9 +79,9 @@ fi
 
 if [ "$MACHINE" = "qemuarm" -o "$MACHINE" = "spitz" -o "$MACHINE" = "borzoi" -o "$MACHINE" = "akita" -o "$MACHINE" = "nokia800" ]; then
     if [ "x$ZIMAGE" = "x" ]; then
-        ZIMAGE=$BUILDDIR/tmp/deploy/images/zImage-$MACHINE.bin
+        ZIMAGE=$TMPDIR/deploy/images/zImage-$MACHINE.bin
     fi
-    CROSSPATH=$BUILDDIR/sysroots/$BUILD_SYS/arm-poky-linux-gnueabi/bin
+    CROSSPATH=$TMPDIR/sysroots/$BUILD_SYS/arm-poky-linux-gnueabi/bin
 fi
 
 function findimage {
@@ -96,7 +108,7 @@ function findimage {
 if [ "$MACHINE" = "qemuarm" ]; then
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-            T=$BUILDDIR/tmp/deploy/images
+            T=$TMPDIR/deploy/images
             findimage $T qemuarm ext3 "poky-image-sdk poky-image-sato poky-image-minimal"
         fi
     fi
@@ -104,34 +116,34 @@ fi
 
 if [ "$MACHINE" = "qemumips" ]; then
     if [ "x$ZIMAGE" = "x" ]; then
-        ZIMAGE=$BUILDDIR/tmp/deploy/images/vmlinux-$MACHINE.bin
+        ZIMAGE=$TMPDIR/tmp/deploy/images/vmlinux-$MACHINE.bin
     fi
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-            T=$BUILDDIR/tmp/deploy/images
+            T=$TMPDIR/tmp/deploy/images
             findimage $T $MACHINE ext3 "poky-image-sdk poky-image-sato poky-image-minimal"
         fi
     fi
-    CROSSPATH=$BUILDDIR/tmp/sysroots/$BUILD_SYS/usr
+    CROSSPATH=$TMPDIR/tmp/sysroots/$BUILD_SYS/usr
 fi
 
 if [ "$MACHINE" = "qemuppc" ]; then
     if [ "x$ZIMAGE" = "x" ]; then
-        ZIMAGE=$BUILDDIR/tmp/deploy/images/zImage-$MACHINE.bin
+        ZIMAGE=$TMPDIR/tmp/deploy/images/zImage-$MACHINE.bin
     fi
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-            T=$BUILDDIR/tmp/deploy/images
+            T=$TMPDIR/tmp/deploy/images
             findimage $T $MACHINE ext3 "poky-image-sdk poky-image-sato poky-image-minimal"
         fi
     fi
-    CROSSPATH=$BUILDDIR/tmp/sysroots/$BUILD_SYS/usr
+    CROSSPATH=$TMPDIR/tmp/sysroots/$BUILD_SYS/usr
 fi
 
 if [ "$MACHINE" = "spitz" ]; then
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-           HDIMAGE=$BUILDDIR/tmp/deploy/images/poky-image-sato-spitz.ext3
+           HDIMAGE=$TMPDIR/tmp/deploy/images/poky-image-sato-spitz.ext3
         fi
     fi
 fi
@@ -139,7 +151,7 @@ fi
 if [ "$MACHINE" = "akita" ]; then
     if [ "$TYPE" = "jffs2" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-           HDIMAGE=$BUILDDIR/tmp/deploy/images/poky-image-sato-akita.jffs2
+           HDIMAGE=$TMPDIR/tmp/deploy/images/poky-image-sato-akita.jffs2
         fi
     fi
 fi
@@ -147,7 +159,7 @@ fi
 if [ "$MACHINE" = "nokia800" ]; then
     if [ "$TYPE" = "jffs2" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-           HDIMAGE=$BUILDDIR/tmp/deploy/images/poky-image-sato-nokia800.jffs2
+           HDIMAGE=$TMPDIR/tmp/deploy/images/poky-image-sato-nokia800.jffs2
         fi
     fi
 fi
@@ -155,15 +167,15 @@ fi
 
 if [ "$MACHINE" = "qemux86" ]; then
     if [ "x$ZIMAGE" = "x" ]; then
-        ZIMAGE=$BUILDDIR/tmp/deploy/images/bzImage-$MACHINE.bin
+        ZIMAGE=$TMPDIR/tmp/deploy/images/bzImage-$MACHINE.bin
     fi
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-            T=$BUILDDIR/tmp/deploy/images
+            T=$TMPDIR/tmp/deploy/images
             findimage $T qemux86 ext3 "moblin-image-sdk moblin-image-netbook poky-image-sdk poky-image-sato poky-image-minimal"
         fi
     fi
-    CROSSPATH=$BUILDDIR/tmp/sysroots/$BUILD_SYS/usr
+    CROSSPATH=$TMPDIR/tmp/sysroots/$BUILD_SYS/usr
 fi
 
 if [ "$MACHINE" = "qemuarm" -o "$MACHINE" = "spitz" -o "$MACHINE" = "borzoi" -o "$MACHINE" = "akita" -o "$MACHINE" = "nokia800" ]; then
@@ -182,6 +194,6 @@ if [ ! -e $CROSSPATH/$TARGET_SYS/bin/gcc ]; then
    ln -s $CROSSPATH/bin/$TARGET_SYS-gcc $CROSSPATH/$TARGET_SYS/bin/gcc
 fi
 
-CROSSPATH=$BUILDDIR/tmp/sysroots/$BUILD_SYS/usr/bin:$CROSSPATH:$BUILDDIR/tmp/cross/bin
+CROSSPATH=$TMPDIR/tmp/sysroots/$BUILD_SYS/usr/bin:$CROSSPATH:$TMPDIR/tmp/cross/bin
 
 . $INTERNAL_SCRIPT