Mercurial > jdk8-mips64-public > hotspot / file revision
make/linux/makefiles/ppc64.make@56e7f5560e60
make/linux/makefiles/ppc64.make
Wed, 02 Apr 2014 11:24:44 -0700
- author
- kvn
- date
- Wed, 02 Apr 2014 11:24:44 -0700
- changeset 6538
- 56e7f5560e60
- parent 6452
- faf0c78e906b
- child 6876
- 710a3c8b516e
- child 9673
- 7cbcb271bad7
- permissions
- -rw-r--r--
8036767: PPC64: Support for little endian execution model
Reviewed-by: goetz, kvn, dholmes, simonis
Contributed-by: asmundak@google.com
1 #
2 # Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
3 # Copyright 2012, 2013 SAP AG. All rights reserved.
4 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 #
6 # This code is free software; you can redistribute it and/or modify it
7 # under the terms of the GNU General Public License version 2 only, as
8 # published by the Free Software Foundation.
9 #
10 # This code is distributed in the hope that it will be useful, but WITHOUT
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 # version 2 for more details (a copy is included in the LICENSE file that
14 # accompanied this code).
15 #
16 # You should have received a copy of the GNU General Public License version
17 # 2 along with this work; if not, write to the Free Software Foundation,
18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 #
20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 # or visit www.oracle.com if you need additional information or have any
22 # questions.
23 #
24 #
26 # make c code know it is on a 64 bit platform.
27 CFLAGS += -D_LP64=1
29 ifeq ($(origin OPENJDK_TARGET_CPU_ENDIAN),undefined)
30 # This can happen during hotspot standalone build. Set endianness from
31 # uname. We assume build and target machines are the same.
32 OPENJDK_TARGET_CPU_ENDIAN:=$(if $(filter ppc64le,$(shell uname -m)),little,big)
33 endif
35 ifeq ($(filter $(OPENJDK_TARGET_CPU_ENDIAN),big little),)
36 $(error OPENJDK_TARGET_CPU_ENDIAN value should be 'big' or 'little')
37 endif
39 ifeq ($(OPENJDK_TARGET_CPU_ENDIAN),big)
40 # fixes `relocation truncated to fit' error for gcc 4.1.
41 CFLAGS += -mminimal-toc
43 # finds use ppc64 instructions, but schedule for power5
44 CFLAGS += -mcpu=powerpc64 -mtune=power5 -minsert-sched-nops=regroup_exact -mno-multiple -mno-string
45 else
46 # Little endian machine uses ELFv2 ABI.
47 CFLAGS += -DVM_LITTLE_ENDIAN -DABI_ELFv2
49 # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI.
50 CFLAGS += -mcpu=power7 -mtune=power8 -minsert-sched-nops=regroup_exact -mno-multiple -mno-string
51 endif
