RFR: 8073139 PPC64: User-visible arch directory and os.arch value on ppc64le cause issues with Java tooling

[Alexander Smundak]

It is achievable by adding a small ppc-specific check to the
common/autoconf/platform.m4:

@@ -282,6 +282,8 @@
   elif test "x$OPENJDK_TARGET_OS" != xmacosx && test
"x$OPENJDK_TARGET_CPU" = xx86_64; then
     # On all platforms except MacOSX replace x86_64 with amd64.
     OPENJDK_TARGET_CPU_LEGACY="amd64"
+  elif test "x$OPENJDK_TARGET_CPU" = xppc64le; then
+    OPENJDK_TARGET_CPU_LEGACY="ppc64"
   fi
   AC_SUBST(OPENJDK_TARGET_CPU_LEGACY)

However, there is a code in make/Images.gmk using  OPENJDK_TARGET_CPU_LEGACY
  $(call info-file-item, "OS_ARCH", "$(OPENJDK_TARGET_CPU_LEGACY)")
so that the 'release' file in the image directory will now have
JAVA_VERSION="9"
JAVA_FULL_VERSION="9-internal+0-2015-12-07-190811.asmundak.hs-rt"
OS_NAME="Linux"
OS_VERSION="2.6"
OS_ARCH="ppc64"
        ^^^^^^^^
SOURCE=..,

instead of "ppc64le".

If someone can tell me which other variable I should use to achieve
that without changing the contents of the 'release' file on other
platforms, I'll be grateful.