simonis@6452: #
simonis@6452: # Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
simonis@6452: # Copyright 2012, 2013 SAP AG. All rights reserved.
simonis@6452: # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
simonis@6452: #
simonis@6452: # This code is free software; you can redistribute it and/or modify it
simonis@6452: # under the terms of the GNU General Public License version 2 only, as
simonis@6452: # published by the Free Software Foundation.
simonis@6452: #
simonis@6452: # This code is distributed in the hope that it will be useful, but WITHOUT
simonis@6452: # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
simonis@6452: # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
simonis@6452: # version 2 for more details (a copy is included in the LICENSE file that
simonis@6452: # accompanied this code).
simonis@6452: #
simonis@6452: # You should have received a copy of the GNU General Public License version
simonis@6452: # 2 along with this work; if not, write to the Free Software Foundation,
simonis@6452: # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
simonis@6452: #
simonis@6452: # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
simonis@6452: # or visit www.oracle.com if you need additional information or have any
simonis@6452: # questions.
simonis@6452: #
simonis@6452: #
simonis@6452: 
simonis@6452: # make c code know it is on a 64 bit platform.
simonis@6452: CFLAGS += -D_LP64=1
simonis@6452: 
kvn@6538: ifeq ($(origin OPENJDK_TARGET_CPU_ENDIAN),undefined)
kvn@6538:   # This can happen during hotspot standalone build. Set endianness from
kvn@6538:   # uname. We assume build and target machines are the same.
kvn@6538:   OPENJDK_TARGET_CPU_ENDIAN:=$(if $(filter ppc64le,$(shell uname -m)),little,big)
kvn@6538: endif
simonis@6452: 
kvn@6538: ifeq ($(filter $(OPENJDK_TARGET_CPU_ENDIAN),big little),)
kvn@6538:   $(error OPENJDK_TARGET_CPU_ENDIAN value should be 'big' or 'little')
kvn@6538: endif
simonis@6452: 
kvn@6538: ifeq ($(OPENJDK_TARGET_CPU_ENDIAN),big)
kvn@6538:   # fixes `relocation truncated to fit' error for gcc 4.1.
kvn@6538:   CFLAGS += -mminimal-toc
simonis@6452: 
kvn@6538:   # finds use ppc64 instructions, but schedule for power5
kvn@6538:   CFLAGS += -mcpu=powerpc64 -mtune=power5 -minsert-sched-nops=regroup_exact -mno-multiple -mno-string
kvn@6538: else
kvn@6538:   # Little endian machine uses ELFv2 ABI.
kvn@6538:   CFLAGS += -DVM_LITTLE_ENDIAN -DABI_ELFv2
kvn@6538: 
kvn@6538:   # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI.
kvn@6538:   CFLAGS += -mcpu=power7 -mtune=power8 -minsert-sched-nops=regroup_exact -mno-multiple -mno-string
kvn@6538: endif