Mercurial > jdk8-mips64-public > hotspot / file revision

 #

 # Copyright (c) 2004, 2015, Oracle and/or its affiliates. All rights reserved.

 # Copyright 2012, 2015 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.

 #  

 #

 # Produce 64 bits object files.

 CFLAGS += -q64

 # Balanced tuning for recent versions of the POWER architecture (if supported by xlc).

 QTUNE=$(if $(CXX_SUPPORTS_BALANCED_TUNING),balanced,pwr5)

 # Try to speed up the interpreter: use ppc64 instructions and inline 

 # glue code for external functions.

 OPT_CFLAGS += -qarch=ppc64 -qtune=$(QTUNE) -qinlglue

 # We need variable length arrays

 CFLAGS += -qlanglvl=c99vla

 # Just to check for unwanted macro redefinitions

 CFLAGS += -qlanglvl=noredefmac

 # Suppress those "implicit private" warnings xlc gives.

 #  - The omitted keyword "private" is assumed for base class "...".

 CFLAGS += -qsuppress=1540-0198

 # Suppress the following numerous warning:

 #  - 1540-1090 (I) The destructor of "..." might not be called.

 #  - 1500-010: (W) WARNING in ...: Infinite loop.  Program may not stop.

 #    There are several infinite loops in the vm, suppress.

 #  - 1540-1639 (I) The behavior of long type bit fields has changed ...

 #                  ... long type bit fields now default to long, not int.

 CFLAGS += -qsuppress=1540-1090 -qsuppress=1500-010 -qsuppress=1540-1639

 # Suppress 

 #  - 540-1088 (W) The exception specification is being ignored.

 # caused by throw() in declaration of new() in nmethod.hpp.

 CFLAGS += -qsuppress=1540-1088

 # Turn off floating-point optimizations that may alter program semantics

 OPT_CFLAGS += -qstrict

 # Disable aggressive optimizations for functions in sharedRuntimeTrig.cpp 

 # and sharedRuntimeTrans.cpp on ppc64. 

 # -qstrict turns off the following optimizations:

 #   * Performing code motion and scheduling on computations such as loads

 #     and floating-point computations that may trigger an exception.

 #   * Relaxing conformance to IEEE rules.

 #   * Reassociating floating-point expressions.

 # When using '-qstrict' there still remains one problem

 # in javasoft.sqe.tests.api.java.lang.Math.sin5Tests when run in compile-all

 # mode, so don't optimize sharedRuntimeTrig.cpp at all.

 OPT_CFLAGS/sharedRuntimeTrig.o = $(OPT_CFLAGS/NOOPT)

 OPT_CFLAGS/sharedRuntimeTrans.o = $(OPT_CFLAGS/NOOPT)

 # Xlc 10.1 parameters for aggressive optimization:

 # - qhot=level=1: Most aggressive loop optimizations.

 # - qignerrno: Assume errno is not modified by system calls.

 # - qinline: Inline method calls. No suboptions for c++ compiles.

 # - qxflag=ASMMIDCOALFIX: Activate fix for -O3 problem in interpreter loop.

 # - qxflag=asmfastsync: Activate fix for performance problem with inline assembler with memory clobber.

 QV10_OPT=$(if $(CXX_IS_V10),-qxflag=ASMMIDCOALFIX -qxflag=asmfastsync)

 QV10_OPT_AGGRESSIVE=$(if $(CXX_IS_V10),-qhot=level=1 -qignerrno -qinline)

 QV10_OPT_CONSERVATIVE=$(if $(CXX_IS_V10),-qhot=level=1 -qignerrno -qinline)

 # Disallow inlining for synchronizer.cpp, but perform O3 optimizations.

 OPT_CFLAGS/synchronizer.o = $(OPT_CFLAGS) -qnoinline

 # Set all the xlC V10.1 options here.

 OPT_CFLAGS += $(QV10_OPT) $(QV10_OPT_AGGRESSIVE)

 export OBJECT_MODE=64

 # Also build launcher as 64 bit executable.

 LAUNCHERFLAGS += -q64