8073139: PPC64: User-visible arch directory and os.arch value on ppc64le cause...

8073139: PPC64: User-visible arch directory and os.arch value on ppc64le cause issues with Java tooling
Reviewed-by: erikj, goetz, dholmes

make/defs.make

@@ -285,7 +285,7 @@ ifneq ($(OSNAME),windows)
 
   # Use uname output for SRCARCH, but deal with platform differences. If ARCH
   # is not explicitly listed below, it is treated as x86.
-  SRCARCH    ?= $(ARCH/$(filter sparc sparc64 ia64 amd64 x86_64 ppc ppc64 zero,$(ARCH)))
+  SRCARCH    ?= $(ARCH/$(filter sparc sparc64 ia64 amd64 x86_64 ppc ppc64 ppc64le zero,$(ARCH)))
   ARCH/       = x86
   ARCH/sparc  = sparc
   ARCH/sparc64= sparc
@@ -293,6 +293,7 @@ ifneq ($(OSNAME),windows)
   ARCH/amd64  = x86
   ARCH/x86_64 = x86
   ARCH/ppc64  = ppc
+  ARCH/ppc64le= ppc
   ARCH/ppc    = ppc
   ARCH/zero   = zero
 
@@ -316,7 +317,12 @@ ifneq ($(OSNAME),windows)
     endif
   endif
 
-  # LIBARCH is 1:1 mapping from BUILDARCH
+  # LIBARCH is 1:1 mapping from BUILDARCH, except for ARCH=ppc64le
+  ifeq ($(ARCH),ppc64le)
+    LIBARCH      ?= ppc64le
+  else
+    LIBARCH      ?= $(LIBARCH/$(BUILDARCH))
+  endif
   LIBARCH        ?= $(LIBARCH/$(BUILDARCH))
   LIBARCH/i486    = i386
   LIBARCH/amd64   = amd64

src/os/linux/vm/os_linux.cpp

@@ -1956,7 +1956,7 @@ void * os::dll_load(const char *filename, char *ebuf, int ebuflen)
     {EM_SPARCV9,     EM_SPARCV9, ELFCLASS64, ELFDATA2MSB, (char*)"Sparc v9 64"},
     {EM_PPC,         EM_PPC,     ELFCLASS32, ELFDATA2MSB, (char*)"Power PC 32"},
 #if defined(VM_LITTLE_ENDIAN)
-    {EM_PPC64,       EM_PPC64,   ELFCLASS64, ELFDATA2LSB, (char*)"Power PC 64"},
+    {EM_PPC64,       EM_PPC64,   ELFCLASS64, ELFDATA2LSB, (char*)"Power PC 64 LE"},
 #else
     {EM_PPC64,       EM_PPC64,   ELFCLASS64, ELFDATA2MSB, (char*)"Power PC 64"},
 #endif

src/share/tools/hsdis/Makefile

@@ -97,6 +97,7 @@ ifdef LP64
 CFLAGS/sparcv9	+= -m64
 CFLAGS/amd64	+= -m64
 CFLAGS/ppc64	+= -m64
+CFLAGS/ppc64le  += -m64 -DABI_ELFv2
 else
 ARCH=$(ARCH1:amd64=i386)
 CFLAGS/i386	+= -m32

src/share/tools/hsdis/hsdis-demo.c

@@ -88,7 +88,7 @@ int main(int ac, char** av) {
   printf("...And now for something completely different:\n");
   void *start = (void*) &main;
   void *end = (void*) &end_of_file;
-#if defined(__ia64) || defined(__powerpc__)
+#if defined(__ia64) || (defined(__powerpc__) && !defined(ABI_ELFv2))
   /* On IA64 and PPC function pointers are pointers to function descriptors */
   start = *((void**)start);
   end = *((void**)end);

src/share/tools/hsdis/hsdis.c

@@ -488,7 +488,7 @@ static const char* native_arch_name() {
 #ifdef LIBARCH_sparcv9
   res = "sparc:v9b";
 #endif
-#ifdef LIBARCH_ppc64
+#if defined(LIBARCH_ppc64) || defined(LIBARCH_ppc64le)
   res = "powerpc:common64";
 #endif
   if (res == NULL)

src/share/vm/runtime/vm_version.cpp

@@ -184,11 +184,16 @@ const char* Abstract_VM_Version::jre_release_version() {
 #ifndef CPU
 #ifdef ZERO
 #define CPU      ZERO_LIBARCH
+#elif defined(PPC64)
+#if defined(VM_LITTLE_ENDIAN)
+#define CPU      "ppc64le"
+#else
+#define CPU      "ppc64"
+#endif
 #else
 #define CPU      IA32_ONLY("x86")                \
                  IA64_ONLY("ia64")               \
                  AMD64_ONLY("amd64")             \
-                 PPC64_ONLY("ppc64")             \
                  SPARC_ONLY("sparc")
 #endif // ZERO
 #endif

test/test_env.sh

@@ -185,6 +185,15 @@ grep "ppc" vm_version.out > ${NULL}
 if [ $? = 0 ]
 then
   VM_CPU="ppc"
+  if [ $VM_BITS = "64" ]
+  then
+    VM_CPU="ppc64"
+    grep "ppc64le" vm_version.out > ${NULL}
+    if [ $? = 0 ]
+    then
+      VM_CPU="ppc64le"
+    fi
+  fi
 fi
 grep "ia64" vm_version.out > ${NULL}
 if [ $? = 0 ]