| # |
| # 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 |
