java-bootstrapping: Do not rely on hardcoded paths

Various paths to files are hardcoded in either helper scripts or the
resulting binaries (like path to Java class libraries). While this works
well when using the files on the build machine, things start breaking
down when the sstate gets shared between multiple workers in CI, as
the paths between workers can differ.

Instead of using these hardcoded paths, form the paths at runtime and pass them as parameters when required.

Signed-off-by: Erkka Kääriä <erkka.kaaria@intel.com>
Signed-off-by: Maxin B. John <maxin.john@intel.com>

6 files changed, 96 insertions, 17 deletions

diff --git a/recipes-core/cacao/cacao-1.6.1/cacao-1.6.1-do-not-rely-on-absolute-paths.patch b/recipes-core/cacao/cacao-1.6.1/cacao-1.6.1-do-not-rely-on-absolute-paths.patch
new file mode 100644
index 0000000..2b046cf
--- /dev/null
+++ b/recipes-core/cacao/cacao-1.6.1/cacao-1.6.1-do-not-rely-on-absolute-paths.patch
@@ -0,0 +1,41 @@
+java.in: Do not use hardcode paths
+
+Cacao uses hardcoded paths to various files, if these paths are not
+provided. This causes issues when sharing sstate with otherwise
+identical workers, if build time paths are not identical.
+
+Signed-off-by: Erkka Kääriä <erkka.kaaria@intel.com>
+
+Upstream-Status: Inappropriate [Yocto-specific fixes]
+
+---
+ cacao-1.6.1/src/scripts/java.in | 16 ++++++++++++++--
+ 1 file changed, 14 insertions(+), 2 deletions(-)
+
+diff --git cacao-1.6.1/src/scripts/java.in cacao-1.6.1/src/scripts/java.in
+index 0790f02..2118de7 100644
+--- cacao-1.6.1/src/scripts/java.in
++++ cacao-1.6.1/src/scripts/java.in
+@@ -22,5 +22,17 @@
+ ## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ ## 02110-1301, USA.
+
+-IFS=""
+-exec $(dirname ${0})/cacao ${1+"$@"}
++SH_DIR=`dirname "$0"`
++CURRENT_DIR=`cd "${SH_DIR}" && pwd`
++
++# if this shell script is invoked through symlink, we get invalid paths. As getting the real path to this file is
++# very painful using only /bin/sh, python is used instead.
++PYTHON_STR="import os; print os.path.dirname(os.path.realpath(os.readlink(\"${CURRENT_DIR}/java\"))) if os.path.islink(\"${CURRENT_DIR}/java\") else \"${CURRENT_DIR}\""
++REAL_DIR=`python -c "${PYTHON_STR}"`
++
++PARENT_DIR=`dirname ${REAL_DIR}`
++
++export BOOTCLASSPATH="${PARENT_DIR}/share/cacao/vm.zip:${PARENT_DIR}/share/classpath/glibj.zip"
++LIBRARY_PATH="-Djava.library.path=${PARENT_DIR}/lib/classpath"
++exec ${REAL_DIR}/cacao ${LIBRARY_PATH} ${1+"$@"}
++
+--
+2.7.4
+
diff --git a/recipes-core/cacao/cacao-initial-native_0.98.bb b/recipes-core/cacao/cacao-initial-native_0.98.bb
index 2a8ced5..caaf53c 100644
--- a/recipes-core/cacao/cacao-initial-native_0.98.bb
+++ b/recipes-core/cacao/cacao-initial-native_0.98.bb
@@ -15,6 +15,7 @@ SRC_URI = "\
         file://cacao-0.98-initial.patch \
         file://disable_hw_exceptions.patch \
         file://cacao-0.9.8-initial-fix-gc-undefined-behaviour.patch \
+        file://cacao-0.9.8-do-not-rely-on-absolute-paths.patch \
         "
 
 # libjvm disabled - it would conflict with cacao-native installations
diff --git a/recipes-core/cacao/cacao_1.6.1.bb b/recipes-core/cacao/cacao_1.6.1.bb
index 83f216c..ec13cc5 100644
--- a/recipes-core/cacao/cacao_1.6.1.bb
+++ b/recipes-core/cacao/cacao_1.6.1.bb
@@ -11,7 +11,10 @@ DEPENDS = "zlib libtool classpath virtual/javac-native bdwgc"
 RPROVIDES_${PN} = "java2-runtime"
 
 SRC_URI = "http://www.complang.tuwien.ac.at/cacaojvm/download/cacao-${PV}/cacao-${PV}.tar.xz \
-           file://system-boehm-gc.patch"
+           file://system-boehm-gc.patch \
+           file://cacao-1.6.1-do-not-rely-on-absolute-paths.patch \
+"
+
 SRC_URI[md5sum] = "2c18478404afd1cffdd15ad1e9d85a57"
 SRC_URI[sha256sum] = "eecc8bd1b528a028f43d9d1d0c06b97855bbf1d40e03826d911ebbc0b6971e12"
 
@@ -23,13 +26,12 @@ REQUIRED_DISTRO_FEATURES_class-native := ""
 EXTRA_OECONF_class-native = "\
     --enable-debug \
     --with-vm-zip=${datadir}/cacao/vm.zip \
-    --disable-libjvm \
-    \
     --with-java-runtime-library-classes=${datadir}/classpath/glibj.zip \
     --with-java-runtime-library-libdir=${libdir_jni}:${libdir} \
     --with-jni_md_h=${includedir}/classpath \
     --with-jni_h=${includedir}/classpath \
     --disable-test-dependency-checks \
+    --disable-libjvm  \
 "
 
 CACHED_CONFIGUREVARS_class-native += "ac_cv_prog_JAVAC=${STAGING_BINDIR_NATIVE}/ecj-initial"
@@ -37,11 +39,9 @@ CACHED_CONFIGUREVARS_class-native += "ac_cv_prog_JAVAC=${STAGING_BINDIR_NATIVE}/
 EXTRA_OECONF = "\
     --with-vm-zip=${datadir}/cacao/vm.zip \
     --disable-libjvm \
-    \
     --with-build-java-runtime-library-classes=${STAGING_DATADIR}/classpath/glibj.zip \
     --with-jni_h=${STAGING_INCDIR}/classpath \
     --with-jni_md_h=${STAGING_INCDIR}/classpath \
-    \
     --with-java-runtime-library-classes=${datadir}/classpath/glibj.zip \
     --with-java-runtime-library-libdir=${libdir_jni}:${libdir} \
     --disable-test-dependency-checks \
@@ -54,21 +54,12 @@ do_configure_prepend () {
     mkdir -p src/mm/boehm-gc/m4
 }
 
-do_install_append () {
+do_install_append_class-target() {
     rm ${D}/${bindir}/java
 }
 
-do_install_append_class-native () {
-    ln -sf cacao ${D}/${bindir}/java
-}
-
 FILES_${PN} = "${bindir}/${PN} ${libdir}/cacao/lib*.so ${libdir}/lib*.so* ${datadir}/${PN}"
 FILES_${PN}-dbg += "${bindir}/.debug ${libdir}/.debug/lib*.so*"
 FILES_${PN}-doc += "${datadir}/gc"
 
-ALTERNATIVE_${PN} = "java"
-ALTERNATIVE_LINK = "${bindir}/java"
-ALTERNATIVE_TARGET = "${bindir}/cacao"
-ALTERNATIVE_PRIORITY = "10"
-
 BBCLASSEXTEND = "native"
diff --git a/recipes-core/cacao/files/cacao-0.9.8-do-not-rely-on-absolute-paths.patch b/recipes-core/cacao/files/cacao-0.9.8-do-not-rely-on-absolute-paths.patch
new file mode 100644
index 0000000..93bcc3e
--- /dev/null
+++ b/recipes-core/cacao/files/cacao-0.9.8-do-not-rely-on-absolute-paths.patch
@@ -0,0 +1,33 @@
+java.in: Do not use hardcode paths
+
+Cacao uses hardcoded paths to various files, if these paths are not
+provided. This causes issues when sharing sstate with otherwise
+identical workers, if build time paths are not identical.
+
+Signed-off-by: Erkka Kääriä <erkka.kaaria@intel.com>
+
+Upstream-Status: Inappropriate [Yocto-specific fixes]
+
+---
+ cacao-0.98/src/scripts/java.in | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git cacao-0.98/src/scripts/java.in cacao-0.98/src/scripts/java.in
+index 8a402e4..1738897 100644
+--- cacao-0.98/src/scripts/java.in
++++ cacao-0.98/src/scripts/java.in
+@@ -32,4 +32,10 @@
+ ##
+ ## $Id: java.in 5659 2006-10-04 10:37:09Z twisti $
+
+-exec cacao ${1+"$@"}
++SH_DIR=`dirname "$0"`
++CURRENT_DIR=`cd "${SH_DIR}" && pwd`
++PARENT_DIR=`dirname ${CURRENT_DIR}`
++export BOOTCLASSPATH="${PARENT_DIR}/share/cacao-initial/vm.zip:${PARENT_DIR}/share/classpath-initial/glibj.zip"
++
++LIBRARY_PATH="-Djava.library.path=${PARENT_DIR}/lib/classpath-initial"
++exec cacao ${LIBRARY_PATH} ${1+"$@"}
++
+--
+2.7.4
diff --git a/recipes-core/ecj/ecj-bootstrap-native.bb b/recipes-core/ecj/ecj-bootstrap-native.bb
index e159c9d..276a8f0 100644
--- a/recipes-core/ecj/ecj-bootstrap-native.bb
+++ b/recipes-core/ecj/ecj-bootstrap-native.bb
@@ -27,7 +27,13 @@ inherit native
 do_compile() {
   # Create the start script
   echo "#!/bin/sh" > ecj-bootstrap
-  echo "ECJ_JAR=${STAGING_DATADIR}/java/${JAR}" >> ecj-bootstrap
+
+  # get absolute path to parent directory, and use that as base path for the jar
+  echo "SH_DIR=\`dirname "\$0"\`" >> ecj-bootstrap
+  echo "CURRENT_DIR=\`cd "\${SH_DIR}" && pwd\`" >> ecj-bootstrap
+  echo "PARENT_DIR=\`dirname \${CURRENT_DIR}\`" >> ecj-bootstrap
+
+  echo "ECJ_JAR=\${PARENT_DIR}/share/java/${JAR}" >> ecj-bootstrap
   echo "RUNTIME=java" >> ecj-bootstrap
   cat ecj.in >> ecj-bootstrap
 }
diff --git a/recipes-core/ecj/ecj-initial-native.bb b/recipes-core/ecj/ecj-initial-native.bb
index ed334ed..1792390 100644
--- a/recipes-core/ecj/ecj-initial-native.bb
+++ b/recipes-core/ecj/ecj-initial-native.bb
@@ -21,11 +21,18 @@ JAR = "ecj-bootstrap.jar"
 do_compile() {
   # Create the start script
   echo "#!/bin/sh" > ecj-initial
-  echo "ECJ_JAR=${STAGING_DATADIR}/java/${JAR}" >> ecj-initial
+
+  # get absolute path to parent directory, and use that as base path for the jar
+  echo "SH_DIR=\`dirname "\$0"\`" >> ecj-initial
+  echo "CURRENT_DIR=\`cd "\${SH_DIR}" && pwd\`" >> ecj-initial
+  echo "PARENT_DIR=\`dirname \${CURRENT_DIR}\`" >> ecj-initial
+
+  echo "ECJ_JAR=\${PARENT_DIR}/share/java/${JAR}" >> ecj-initial
   echo "RUNTIME=java-initial" >> ecj-initial
   cat ecj-initial.in >> ecj-initial
 }
 
+
 do_install() {
   install -d ${D}${bindir}
   install -m 755 ${S}/ecj-initial ${D}${bindir}