#

# Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.

# Copyright 2012, 2013 SAP AG. All rights reserved.

# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

#

# This code is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License version 2 only, as

# published by the Free Software Foundation.

#

# This code is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

# version 2 for more details (a copy is included in the LICENSE file that

# accompanied this code).

#

# You should have received a copy of the GNU General Public License version

# 2 along with this work; if not, write to the Free Software Foundation,

# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

#

# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

# or visit www.oracle.com if you need additional information or have any

# questions.

#

#

# make c code know it is on a 64 bit platform.

CFLAGS += -D_LP64=1

ifeq ($(origin OPENJDK_TARGET_CPU_ENDIAN),undefined)

  # This can happen during hotspot standalone build. Set endianness from

  # uname. We assume build and target machines are the same.

  OPENJDK_TARGET_CPU_ENDIAN:=$(if $(filter ppc64le,$(shell uname -m)),little,big)

endif

ifeq ($(filter $(OPENJDK_TARGET_CPU_ENDIAN),big little),)

  $(error OPENJDK_TARGET_CPU_ENDIAN value should be 'big' or 'little')

endif

ifeq ($(OPENJDK_TARGET_CPU_ENDIAN),big)

  # fixes `relocation truncated to fit' error for gcc 4.1.

  CFLAGS += -mminimal-toc

  # finds use ppc64 instructions, but schedule for power5

  CFLAGS += -mcpu=powerpc64 -mtune=power5 -minsert-sched-nops=regroup_exact -mno-multiple -mno-string

else

  # Little endian machine uses ELFv2 ABI.

  CFLAGS += -DVM_LITTLE_ENDIAN -DABI_ELFv2

  # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI.

  CFLAGS += -mcpu=power7 -mtune=power8 -minsert-sched-nops=regroup_exact -mno-multiple -mno-string

endif