# HG changeset patch
# User Alexander Smundak asmundak@google.com
# Date 1449806569 28800
#      Thu Dec 10 20:02:49 2015 -0800
# Node ID 52a7c47f2fc429bbe8df9dbd81c1937c1357e189
# Parent  2b4c71d036af7d375c3cfc7753614ed2162bf33a
8073139: PPC64: User-visible arch directory and os.arch value on ppc64le cause issues with Java tooling
Summary: Set LIBARCH to ppc64le, make SA and hsdis work, have os.arch return ppc64le on PowerPC64 LE
Reviewed-by: david.holmes@oracle.com, magnus.ihse.bursie@oracle.com
Contributed-by: Andrew Hughes gnu.andrew@redhat.com, Alexander Smundak asmundak@google.com

diff --git a/agent/src/os/linux/LinuxDebuggerLocal.c b/agent/src/os/linux/LinuxDebuggerLocal.c
--- a/agent/src/os/linux/LinuxDebuggerLocal.c
+++ b/agent/src/os/linux/LinuxDebuggerLocal.c
@@ -49,7 +49,7 @@
 #include "sun_jvm_hotspot_debugger_sparc_SPARCThreadContext.h"
 #endif
 
-#ifdef ppc64
+#if defined(ppc64) || defined(ppc64le)
 #include "sun_jvm_hotspot_debugger_ppc64_PPC64ThreadContext.h"
 #endif
 
@@ -352,7 +352,7 @@
   return (err == PS_OK)? array : 0;
 }
 
-#if defined(i386) || defined(amd64) || defined(sparc) || defined(sparcv9) | defined(ppc64) || defined(aarch64)
+#if defined(i386) || defined(amd64) || defined(sparc) || defined(sparcv9) | defined(ppc64) || defined(ppc64le) || defined(aarch64)
 JNIEXPORT jlongArray JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_getThreadIntegerRegisterSet0
   (JNIEnv *env, jobject this_obj, jint lwp_id) {
 
@@ -380,7 +380,7 @@
 #if defined(sparc) || defined(sparcv9)
 #define NPRGREG sun_jvm_hotspot_debugger_sparc_SPARCThreadContext_NPRGREG
 #endif
-#ifdef ppc64
+#if defined(ppc64) || defined(ppc64le)
 #define NPRGREG sun_jvm_hotspot_debugger_ppc64_PPC64ThreadContext_NPRGREG
 #endif
 
@@ -489,7 +489,7 @@
   }
 #endif /* aarch64 */
 
-#ifdef ppc64
+#if defined(ppc64) || defined(ppc64le)
 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_ppc64_PPC64ThreadContext_##reg
 
   regs[REG_INDEX(LR)] = gregs.link;
diff --git a/agent/src/os/linux/libproc.h b/agent/src/os/linux/libproc.h
--- a/agent/src/os/linux/libproc.h
+++ b/agent/src/os/linux/libproc.h
@@ -68,7 +68,7 @@
 *************************************************************************************/
 
 
-#if defined(sparc) || defined(sparcv9) || defined(ppc64)
+#if defined(sparc) || defined(sparcv9) || defined(ppc64) || defined(ppc64le)
 #define user_regs_struct  pt_regs
 #endif
 #if defined(aarch64)
diff --git a/agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java b/agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java
--- a/agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java
+++ b/agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java
@@ -54,7 +54,7 @@
 
   public static boolean knownCPU(String cpu) {
     final String[] KNOWN =
-        new String[] {"i386", "x86", "x86_64", "amd64", "sparc", "sparcv9", "ppc64", "aarch64"};
+        new String[] {"i386", "x86", "x86_64", "amd64", "sparc", "sparcv9", "ppc64", "ppc64le", "aarch64"};
 
     for(String s : KNOWN) {
       if(s.equals(cpu))
@@ -98,6 +98,9 @@
     if (cpu.equals("x86_64"))
       return "amd64";
 
+    if (cpu.equals("ppc64le"))
+      return "ppc64";
+
     return cpu;
 
   }
diff --git a/make/defs.make b/make/defs.make
--- a/make/defs.make
+++ b/make/defs.make
@@ -277,7 +277,7 @@
 
   # 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 aarch64 zero,$(ARCH)))
+  SRCARCH    ?= $(ARCH/$(filter sparc sparc64 ia64 amd64 x86_64 ppc ppc64 ppc64le aarch64 zero,$(ARCH)))
   ARCH/       = x86
   ARCH/sparc  = sparc
   ARCH/sparc64= sparc
@@ -285,6 +285,7 @@
   ARCH/amd64  = x86
   ARCH/x86_64 = x86
   ARCH/ppc64  = ppc
+  ARCH/ppc64le= ppc
   ARCH/ppc    = ppc
   ARCH/aarch64= aarch64
   ARCH/zero   = zero
@@ -309,8 +310,13 @@
     endif
   endif
 
-  # LIBARCH is 1:1 mapping from BUILDARCH
-  LIBARCH        ?= $(LIBARCH/$(BUILDARCH))
+  # LIBARCH is 1:1 mapping from BUILDARCH, except for ARCH=ppc64le
+  ifeq ($(ARCH),ppc64le)
+    LIBARCH      ?= ppc64le
+  else
+    LIBARCH      ?= $(LIBARCH/$(BUILDARCH))
+  endif
+
   LIBARCH/i486    = i386
   LIBARCH/amd64   = amd64
   LIBARCH/sparc   = sparc
diff --git a/src/os/linux/vm/os_linux.cpp b/src/os/linux/vm/os_linux.cpp
--- a/src/os/linux/vm/os_linux.cpp
+++ b/src/os/linux/vm/os_linux.cpp
@@ -1733,7 +1733,7 @@
 #if defined(VM_LITTLE_ENDIAN)
     {EM_PPC64,       EM_PPC64,   ELFCLASS64, ELFDATA2LSB, (char*)"Power PC 64"},
 #else
-    {EM_PPC64,       EM_PPC64,   ELFCLASS64, ELFDATA2MSB, (char*)"Power PC 64"},
+    {EM_PPC64,       EM_PPC64,   ELFCLASS64, ELFDATA2MSB, (char*)"Power PC 64 LE"},
 #endif
     {EM_ARM,         EM_ARM,     ELFCLASS32,   ELFDATA2LSB, (char*)"ARM"},
     {EM_S390,        EM_S390,    ELFCLASSNONE, ELFDATA2MSB, (char*)"IBM System/390"},
@@ -2177,6 +2177,8 @@
 const char* search_string = "model name";
 #elif defined(SPARC)
 const char* search_string = "cpu";
+#elif defined(PPC64)
+const char* search_string = "cpu";
 #else
 const char* search_string = "Processor";
 #endif
diff --git a/src/share/tools/hsdis/Makefile b/src/share/tools/hsdis/Makefile
--- a/src/share/tools/hsdis/Makefile
+++ b/src/share/tools/hsdis/Makefile
@@ -70,12 +70,12 @@
 else   #linux
 CPU             = $(shell uname -m)
 ARCH1=$(CPU:x86_64=amd64)
-ARCH2=$(ARCH1:i686=i386)
-ARCH=$(ARCH2:ppc64le=ppc64)
+ARCH=$(ARCH1:i686=i386)
 ifdef LP64
 CFLAGS/sparcv9	+= -m64
 CFLAGS/amd64	+= -m64
 CFLAGS/ppc64	+= -m64
+CFLAGS/ppc64le  += -m64 -DABI_ELFv2
 else
 ARCH=$(ARCH1:amd64=i386)
 CFLAGS/i386	+= -m32
diff --git a/src/share/tools/hsdis/hsdis-demo.c b/src/share/tools/hsdis/hsdis-demo.c
--- a/src/share/tools/hsdis/hsdis-demo.c
+++ b/src/share/tools/hsdis/hsdis-demo.c
@@ -66,7 +66,7 @@
   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);
diff --git a/src/share/tools/hsdis/hsdis.c b/src/share/tools/hsdis/hsdis.c
--- a/src/share/tools/hsdis/hsdis.c
+++ b/src/share/tools/hsdis/hsdis.c
@@ -461,7 +461,7 @@
 #ifdef LIBARCH_sparcv9
   res = "sparc:v9b";
 #endif
-#ifdef LIBARCH_ppc64
+#if  defined(LIBARCH_ppc64) || defined(LIBARCH_ppc64le)
   res = "powerpc:common64";
 #endif
 #ifdef LIBARCH_aarch64
diff --git a/src/share/vm/runtime/vm_version.cpp b/src/share/vm/runtime/vm_version.cpp
--- a/src/share/vm/runtime/vm_version.cpp
+++ b/src/share/vm/runtime/vm_version.cpp
@@ -170,14 +170,19 @@
 #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")             \
                  AARCH64_ONLY("aarch64")         \
                  SPARC_ONLY("sparc")
-#endif // ZERO
+#endif //
 #endif
 
 const char *Abstract_VM_Version::vm_platform_string() {
diff --git a/test/test_env.sh b/test/test_env.sh
--- a/test/test_env.sh
+++ b/test/test_env.sh
@@ -192,6 +192,11 @@
   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}