8046471: Use OPENJDK_TARGET_CPU_ARCH instead of legacy value for hotspot ARCH

Reviewed-by: erikj, dholmes

hotspot/make/linux/makefiles/defs.make

@@ -69,7 +69,7 @@ ifeq ($(ARCH), ia64)
 endif
 
 # sparc
-ifeq ($(ARCH), sparc64)
+ifneq (,$(findstring $(ARCH), sparc))
   ifeq ($(ARCH_DATA_MODEL), 64)
     ARCH_DATA_MODEL  = 64
     MAKE_ARGS        += LP64=1
@@ -83,30 +83,20 @@ ifeq ($(ARCH), sparc64)
   HS_ARCH            = sparc
 endif
 
-# amd64/x86_64
-ifneq (,$(findstring $(ARCH), amd64 x86_64))
+# i686/i586 and amd64/x86_64
+ifneq (,$(findstring $(ARCH), amd64 x86_64 i686 i586))
   ifeq ($(ARCH_DATA_MODEL), 64)
     ARCH_DATA_MODEL = 64
     MAKE_ARGS       += LP64=1
     PLATFORM        = linux-amd64
     VM_PLATFORM     = linux_amd64
-    HS_ARCH         = x86
   else
     ARCH_DATA_MODEL = 32
     PLATFORM        = linux-i586
     VM_PLATFORM     = linux_i486
-    HS_ARCH         = x86
-    # We have to reset ARCH to i686 since SRCARCH relies on it
-    ARCH            = i686
   endif
-endif
 
-# i686/i586 ie 32-bit x86
-ifneq (,$(findstring $(ARCH), i686 i586))
-  ARCH_DATA_MODEL  = 32
-  PLATFORM         = linux-i586
-  VM_PLATFORM      = linux_i486
-  HS_ARCH          = x86
+  HS_ARCH           = x86
 endif
 
 # ARM
@@ -118,20 +108,18 @@ ifeq ($(ARCH), arm)
 endif
 
 # PPC
-ifeq ($(ARCH), ppc)
-  ARCH_DATA_MODEL  = 32
-  PLATFORM         = linux-ppc
-  VM_PLATFORM      = linux_ppc
-  HS_ARCH          = ppc
-endif
+ifneq (,$(findstring $(ARCH), ppc))
+  ifeq ($(ARCH_DATA_MODEL), 64)
+    MAKE_ARGS        += LP64=1
+    PLATFORM         = linux-ppc64
+    VM_PLATFORM      = linux_ppc64
+  else
+    ARCH_DATA_MODEL  = 32
+    PLATFORM         = linux-ppc
+    VM_PLATFORM      = linux_ppc
+  endif
 
-# PPC64
-ifeq ($(ARCH), ppc64)
-  ARCH_DATA_MODEL  = 64
-  MAKE_ARGS        += LP64=1
-  PLATFORM         = linux-ppc64
-  VM_PLATFORM      = linux_ppc64
-  HS_ARCH          = ppc
+  HS_ARCH = ppc
 endif
 
 # On 32 bit linux we build server and client, on 64 bit just server.