#
# Copyright (c) 2011, 2018, Oracle and/or its affiliates. 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. Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# 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.
#
AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS],
[
# Option used to tell the compiler whether to create 32- or 64-bit executables
if test "x$TOOLCHAIN_TYPE" = xxlc; then
COMPILER_TARGET_BITS_FLAG="-q"
else
COMPILER_TARGET_BITS_FLAG="-m"
fi
AC_SUBST(COMPILER_TARGET_BITS_FLAG)
# FIXME: figure out if we should select AR flags depending on OS or toolchain.
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
ARFLAGS="-r"
elif test "x$OPENJDK_TARGET_OS" = xaix; then
ARFLAGS="-X64"
elif test "x$OPENJDK_TARGET_OS" = xwindows; then
# lib.exe is used as AR to create static libraries.
ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"
else
ARFLAGS=""
fi
AC_SUBST(ARFLAGS)
## Setup strip.
# FIXME: should this really be per platform, or should it be per toolchain type?
# strip is not provided by clang or solstudio; so guessing platform makes most sense.
# FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD.
if test "x$OPENJDK_TARGET_OS" = xlinux; then
STRIPFLAGS="-g"
elif test "x$OPENJDK_TARGET_OS" = xsolaris; then
STRIPFLAGS="-x"
elif test "x$OPENJDK_TARGET_OS" = xmacosx; then
STRIPFLAGS="-S"
elif test "x$OPENJDK_TARGET_OS" = xaix; then
STRIPFLAGS="-X32_64"
fi
if test "x$OPENJDK_TARGET_OS" != xwindows; then
POST_STRIP_CMD="$STRIP $STRIPFLAGS"
fi
AC_SUBST(POST_STRIP_CMD)
if test "x$OPENJDK_TARGET_OS" = xsolaris; then
# FIXME: break out into MCSFLAGS
POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\""
fi
AC_SUBST(POST_MCS_CMD)
if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
CC_OUT_OPTION=-Fo
EXE_OUT_OPTION=-out:
LD_OUT_OPTION=-out:
AR_OUT_OPTION=-out:
else
# The option used to specify the target .o,.a or .so file.
# When compiling, how to specify the to be created object file.
CC_OUT_OPTION='-o$(SPACE)'
# When linking, how to specify the to be created executable.
EXE_OUT_OPTION='-o$(SPACE)'
# When linking, how to specify the to be created dynamically linkable library.
LD_OUT_OPTION='-o$(SPACE)'
# When archiving, how to specify the to be create static archive for object files.
AR_OUT_OPTION='rcs$(SPACE)'
fi
AC_SUBST(CC_OUT_OPTION)
AC_SUBST(EXE_OUT_OPTION)
AC_SUBST(LD_OUT_OPTION)
AC_SUBST(AR_OUT_OPTION)
# On Windows, we need to set RC flags.
if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
RC_FLAGS="-nologo -l 0x409 -r"
if test "x$VARIANT" = xOPT; then
RC_FLAGS="$RC_FLAGS -d NDEBUG"
fi
# The version variables used to create RC_FLAGS may be overridden
# in a custom configure script, or possibly the command line.
# Let those variables be expanded at make time in spec.gmk.
# The \$ are escaped to the shell, and the $(...) variables
# are evaluated by make.
RC_FLAGS="$RC_FLAGS \
-d \"JDK_BUILD_ID=\$(FULL_VERSION)\" \
-d \"JDK_COMPANY=\$(COMPANY_NAME)\" \
-d \"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \
-d \"JDK_VER=\$(JDK_MINOR_VERSION).\$(JDK_MICRO_VERSION).\$(COOKED_JDK_UPDATE_VERSION).\$(COOKED_BUILD_NUMBER)\" \
-d \"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \
-d \"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(JDK_MINOR_VERSION) \$(JDK_UPDATE_META_TAG)\" \
-d \"JDK_FVER=\$(JDK_MINOR_VERSION),\$(JDK_MICRO_VERSION),\$(if \$(COOKED_JDK_UPDATE_VERSION),\$(COOKED_JDK_UPDATE_VERSION),0),\$(COOKED_BUILD_NUMBER)\""
fi
AC_SUBST(RC_FLAGS)
if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
# FIXME: likely bug, should be CCXXFLAGS_JDK? or one for C or CXX.
CCXXFLAGS="$CCXXFLAGS -nologo"
fi
if test "x$SYSROOT" != "x"; then
if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
if test "x$OPENJDK_TARGET_OS" = xsolaris; then
# Solaris Studio does not have a concept of sysroot. Instead we must
# make sure the default include and lib dirs are appended to each
# compile and link command line.
SYSROOT_CFLAGS="-I$SYSROOT/usr/include"
SYSROOT_LDFLAGS="-L$SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \
-L$SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \
-L$SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR"
fi
elif test "x$TOOLCHAIN_TYPE" = xgcc; then
SYSROOT_CFLAGS="--sysroot=\"$SYSROOT\""
SYSROOT_LDFLAGS="--sysroot=\"$SYSROOT\""
elif test "x$TOOLCHAIN_TYPE" = xclang; then
SYSROOT_CFLAGS="-isysroot \"$SYSROOT\""
SYSROOT_LDFLAGS="-isysroot \"$SYSROOT\""
fi
# Propagate the sysroot args to hotspot
LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $SYSROOT_CFLAGS"
LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $SYSROOT_CFLAGS"
LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $SYSROOT_LDFLAGS"
fi
AC_SUBST(SYSROOT_CFLAGS)
AC_SUBST(SYSROOT_LDFLAGS)
])
AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
[
###############################################################################
#
# How to compile shared libraries.
#
if test "x$TOOLCHAIN_TYPE" = xgcc; then
PICFLAG="-fPIC"
PIEFLAG="-fPIE"
C_FLAG_REORDER=''
CXX_FLAG_REORDER=''
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
# Linking is different on MacOSX
SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
SET_SHARED_LIBRARY_MAPFILE=''
else
# Default works for linux, might work on other platforms as well.
SHARED_LIBRARY_FLAGS='-shared'
SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"
SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
fi
elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
PICFLAG="-KPIC"
PIEFLAG=""
C_FLAG_REORDER='-xF'
CXX_FLAG_REORDER='-xF'
SHARED_LIBRARY_FLAGS="-G"
SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'
SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
SET_SHARED_LIBRARY_NAME=''
SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
elif test "x$TOOLCHAIN_TYPE" = xxlc; then
PICFLAG="-qpic=large"
PIEFLAG=""
C_FLAG_REORDER=''
CXX_FLAG_REORDER=''
SHARED_LIBRARY_FLAGS="-qmkshrobj"
SET_EXECUTABLE_ORIGIN=""
SET_SHARED_LIBRARY_ORIGIN=''
SET_SHARED_LIBRARY_NAME=''
SET_SHARED_LIBRARY_MAPFILE=''
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
PICFLAG=""
PIEFLAG=""
C_FLAG_REORDER=''
CXX_FLAG_REORDER=''
SHARED_LIBRARY_FLAGS="-LD"
SET_EXECUTABLE_ORIGIN=''
SET_SHARED_LIBRARY_ORIGIN=''
SET_SHARED_LIBRARY_NAME=''
SET_SHARED_LIBRARY_MAPFILE=''
fi
AC_SUBST(C_FLAG_REORDER)
AC_SUBST(CXX_FLAG_REORDER)
AC_SUBST(SHARED_LIBRARY_FLAGS)
AC_SUBST(SET_EXECUTABLE_ORIGIN)
AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
AC_SUBST(SET_SHARED_LIBRARY_NAME)
AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
if test "x$OPENJDK_TARGET_OS" = xsolaris; then
CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
CFLAGS_JDKLIB_EXTRA='-xstrconst'
fi
# The (cross) compiler is now configured, we can now test capabilities
# of the target platform.
])
# Documentation on common flags used for solstudio in HIGHEST.
#
# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
# done with care, there are some assumptions below that need to
# be understood about the use of pointers, and IEEE behavior.
#
# -fns: Use non-standard floating point mode (not IEEE 754)
# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)
# -fsingle: Use single precision floating point with 'float'
# -xalias_level=basic: Assume memory references via basic pointer types do not alias
# (Source with excessing pointer casting and data access with mixed
# pointer types are not recommended)
# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions
# (If you expect perfect errno behavior, do not use this)
# -xdepend: Loop data dependency optimizations (need -xO3 or higher)
# -xrestrict: Pointer parameters to functions do not overlap
# (Similar to -xalias_level=basic usage, but less obvious sometimes.
# If you pass in multiple pointers to the same data, do not use this)
# -xlibmil: Inline some library routines
# (If you expect perfect errno behavior, do not use this)
# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)
# (If you expect perfect errno behavior, do not use this)
# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
# FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.
# Bug?
#if test "x$OPENJDK_TARGET_CPU" = xsparc; then
# CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
# CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
#fi
AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
[
###############################################################################
#
# Setup the opt flags for different compilers
# and different operating systems.
#
# FIXME: this was indirectly the old default, but just inherited.
# if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
# C_FLAG_DEPS="-MMD -MF"
# fi
# Generate make dependency files
if test "x$TOOLCHAIN_TYPE" = xgcc; then
C_FLAG_DEPS="-MMD -MF"
elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
C_FLAG_DEPS="-xMMD -xMF"
elif test "x$TOOLCHAIN_TYPE" = xxlc; then
C_FLAG_DEPS="-qmakedep=gcc -MF"
fi
CXX_FLAG_DEPS="$C_FLAG_DEPS"
AC_SUBST(C_FLAG_DEPS)
AC_SUBST(CXX_FLAG_DEPS)
# Debug symbols
#
# By default don't set any specific assembler debug
# info flags for toolchains unless we know they work.
# See JDK-8207057.
ASFLAGS_DEBUG_SYMBOLS=""
if test "x$TOOLCHAIN_TYPE" = xgcc; then
if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
CFLAGS_DEBUG_SYMBOLS="-g1"
CXXFLAGS_DEBUG_SYMBOLS="-g1"
else
CFLAGS_DEBUG_SYMBOLS="-g"
CXXFLAGS_DEBUG_SYMBOLS="-g"
fi
ASFLAGS_DEBUG_SYMBOLS="-g"
elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
CFLAGS_DEBUG_SYMBOLS="-g -xs"
CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
elif test "x$TOOLCHAIN_TYPE" = xxlc; then
CFLAGS_DEBUG_SYMBOLS="-g"
CXXFLAGS_DEBUG_SYMBOLS="-g"
fi
AC_SUBST(ASFLAGS_DEBUG_SYMBOLS)
AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
# Optimization levels
if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xalias_level=basic -xbuiltin=%all -xdepend -xrestrict -xlibmil"
if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
# FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xregs=no%frameptr"
C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
C_O_FLAG_NONE="-xregs=no%frameptr"
CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
CXX_O_FLAG_NONE="-xregs=no%frameptr"
if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
fi
elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
C_O_FLAG_NONE=""
CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
CXX_O_FLAG_NONE=""
fi
else
# The remaining toolchains share opt flags between CC and CXX;
# setup for C and duplicate afterwards.
if test "x$TOOLCHAIN_TYPE" = xgcc; then
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
# On MacOSX we optimize for size, something
# we should do for all platforms?
C_O_FLAG_HIGHEST="-Os"
C_O_FLAG_HI="-Os"
C_O_FLAG_NORM="-Os"
C_O_FLAG_NONE=""
else
C_O_FLAG_HIGHEST="-O3"
C_O_FLAG_HI="-O3"
C_O_FLAG_NORM="-O2"
C_O_FLAG_NONE="-O0"
fi
elif test "x$TOOLCHAIN_TYPE" = xxlc; then
C_O_FLAG_HIGHEST="-O3"
C_O_FLAG_HI="-O3 -qstrict"
C_O_FLAG_NORM="-O2"
C_O_FLAG_NONE=""
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
C_O_FLAG_HIGHEST="-O2"
C_O_FLAG_HI="-O1"
C_O_FLAG_NORM="-O1"
C_O_FLAG_NONE="-Od"
fi
CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
CXX_O_FLAG_HI="$C_O_FLAG_HI"
CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
fi
AC_SUBST(C_O_FLAG_HIGHEST)
AC_SUBST(C_O_FLAG_HI)
AC_SUBST(C_O_FLAG_NORM)
AC_SUBST(C_O_FLAG_NONE)
AC_SUBST(CXX_O_FLAG_HIGHEST)
AC_SUBST(CXX_O_FLAG_HI)
AC_SUBST(CXX_O_FLAG_NORM)
AC_SUBST(CXX_O_FLAG_NONE)
])
AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
[
# Special extras...
if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
fi
elif test "x$TOOLCHAIN_TYPE" = xxlc; then
LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall"
CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
elif test "x$TOOLCHAIN_TYPE" = xgcc; then
LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS -fstack-protector"
LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS -fstack-protector"
if test "x$OPENJDK_TARGET_OS" != xmacosx; then
LDFLAGS_JDK="$LDFLAGS_JDK -Wl,-z,relro"
LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS -Wl,-z,relro"
fi
$2CXXSTD_CXXFLAG="-std=gnu++98"
FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]$2CXXSTD_CXXFLAG -Werror],
[], [$2CXXSTD_CXXFLAG=""])
$2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}"
$2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}"
AC_SUBST($2CXXSTD_CXXFLAG)
fi
#
# NOTE: check for -mstackrealign needs to be below potential addition of -m32
#
if test "x$OPENJDK_TARGET_CPU" = xx86 && test "x$OPENJDK_TARGET_OS" = xmacosx -o \
"x$OPENJDK_TARGET_OS" = xlinux; then
# On 32-bit MacOSX the OS requires C-entry points to be 16 byte aligned.
# While waiting for a better solution, the current workaround is to use -mstackrealign
# This is also required on Linux systems which use libraries compiled with SSE instructions
REALIGN_CFLAG="-mstackrealign"
FLAGS_COMPILER_CHECK_ARGUMENTS([$REALIGN_CFLAG -Werror], [],
AC_MSG_ERROR([The selected compiler $CXX does not support -mstackrealign! Try to put another compiler in the path.])
)
AC_SUBST([REALIGN_CFLAG])
fi
if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
fi
if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
fi
if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
fi
if test "x$ASFLAGS" != "x"; then
AC_MSG_WARN([Ignoring ASFLAGS($ASFLAGS) found in environment. Use --with-extra-asflags])
fi
AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
[extra flags to be used when compiling jdk c-files])])
AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
[extra flags to be used when compiling jdk c++-files])])
AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
[extra flags to be used when linking jdk])])
AC_ARG_WITH(extra-asflags, [AS_HELP_STRING([--with-extra-asflags],
[extra flags to be passed to the assembler])])
CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"
# Hotspot needs these set in their legacy form
LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags"
LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags"
LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags"
LEGACY_EXTRA_ASFLAGS="$with_extra_asflags"
AC_SUBST(LEGACY_EXTRA_CFLAGS)
AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
AC_SUBST(LEGACY_EXTRA_LDFLAGS)
AC_SUBST(LEGACY_EXTRA_ASFLAGS)
###############################################################################
#
# Now setup the CFLAGS and LDFLAGS for the JDK build.
# Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
#
FDLIBM_CFLAGS=""
# Setup compiler/platform specific flags to CFLAGS_JDK,
# CXXFLAGS_JDK and CCXXFLAGS_JDK (common to C and CXX?)
if test "x$TOOLCHAIN_TYPE" = xgcc; then
# these options are used for both C and C++ compiles
CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Wall -Wno-parentheses -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
-pipe -fstack-protector -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
case $OPENJDK_TARGET_CPU_ARCH in
arm )
# on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
;;
ppc )
# on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing
;;
* )
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer"
CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
;;
esac
TOOLCHAIN_CHECK_COMPILER_VERSION(6, FLAGS_SETUP_GCC6_COMPILER_FLAGS)
# Check that the compiler supports -ffp-contract=off flag
# Set FDLIBM_CFLAGS to -ffp-contract=off if it does.
# For GCC < 4.6, on x86, x86_64 and ppc check for
# -mno-fused-madd and -fno-strict-aliasing. If they exist,
# use them as a substitute for -ffp-contract=off.
#
# These flags are required for GCC-based builds of
# fdlibm with optimization without losing precision.
# Notably, -ffp-contract=off needs to be added for GCC >= 4.6,
# -mno-fused-madd -fno-strict-aliasing for GCC < 4.6
COMPILER_FP_CONTRACT_OFF_FLAG="-ffp-contract=off"
FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]COMPILER_FP_CONTRACT_OFF_FLAG -Werror],
[], [COMPILER_FP_CONTRACT_OFF_FLAG=""])
if test "x$COMPILER_FP_CONTRACT_OFF_FLAG" = x; then
if test "$OPENJDK_TARGET_CPU_ARCH" = "x86" ||
test "$OPENJDK_TARGET_CPU_ARCH" = "x86_64" ||
test "$OPENJDK_TARGET_CPU_ARCH" = "ppc"; then
M_NO_FUSED_ADD_FLAG="-mno-fused-madd"
FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]M_NO_FUSED_ADD_FLAG -Werror],
[], [M_NO_FUSED_ADD_FLAG=""])
NO_STRICT_ALIASING_FLAG="-fno-strict-aliasing"
FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]NO_STRICT_ALIASING_FLAG -Werror],
[], [NO_STRICT_ALIASING_FLAG=""])
if test "x$M_NO_FUSED_ADD_FLAG" != "x" && test "x$NO_STRICT_ALIASING_FLAG" != "x"; then
FDLIBM_CFLAGS="$M_NO_FUSED_ADD_FLAG $NO_STRICT_ALIASING_FLAG"
fi
fi
else
FDLIBM_CFLAGS="$COMPILER_FP_CONTRACT_OFF_FLAG"
fi
elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"
fi
CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
elif test "x$TOOLCHAIN_TYPE" = xxlc; then
CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK \
-Zi -MD -Zc:wchar_t- -W3 -wd4800 \
-DWIN32_LEAN_AND_MEAN \
-D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
-DWIN32 -DIAL"
if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64"
else
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86"
fi
# If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to
# avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual
# studio.
if test "x$TOOLCHAIN_VERSION" = "x2010"; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK \
-D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"
fi
fi
AC_SUBST(FDLIBM_CFLAGS)
###############################################################################
# Adjust flags according to debug level.
case $DEBUG_LEVEL in
fastdebug )
CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
C_O_FLAG_HI="$C_O_FLAG_NORM"
C_O_FLAG_NORM="$C_O_FLAG_NORM"
CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM"
JAVAC_FLAGS="$JAVAC_FLAGS -g"
;;
slowdebug )
CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
C_O_FLAG_HI="$C_O_FLAG_NONE"
C_O_FLAG_NORM="$C_O_FLAG_NONE"
CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"
CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"
JAVAC_FLAGS="$JAVAC_FLAGS -g"
;;
esac
# Setup LP64
CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64"
# Set some common defines. These works for all compilers, but assume
# -D is universally accepted.
# Setup endianness
if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
# The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
# Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
# (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
# Note: -Dmacro is the same as #define macro 1
# -Dmacro= is the same as #define macro
if test "x$OPENJDK_TARGET_OS" = xsolaris; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
else
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
fi
else
# Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they
# are defined in the system?
if test "x$OPENJDK_TARGET_OS" = xsolaris; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN="
else
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN"
fi
fi
if test "x$OPENJDK_TARGET_CPU" = xppc64le; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DABI_ELFv2"
fi
# Setup target OS define. Use OS target name but in upper case.
OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
# Setup target CPU
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
# Setup debug/release defines
if test "x$DEBUG_LEVEL" = xrelease; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG"
if test "x$OPENJDK_TARGET_OS" = xsolaris; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED"
fi
else
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG"
fi
# Setup release name
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'"
# Set some additional per-OS defines.
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
elif test "x$OPENJDK_TARGET_OS" = xaix; then
# FIXME: PPC64 should not be here.
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DPPC64"
elif test "x$OPENJDK_TARGET_OS" = xbsd; then
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
fi
# Additional macosx handling
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
if test "x$TOOLCHAIN_TYPE" = xgcc; then
# FIXME: This needs to be exported in spec.gmk due to closed legacy code.
# FIXME: clean this up, and/or move it elsewhere.
# Setting these parameters makes it an error to link to macosx APIs that are
# newer than the given OS version and makes the linked binaries compatible
# even if built on a newer version of the OS.
# The expected format is X.Y.Z
MACOSX_VERSION_MIN=10.7.0
AC_SUBST(MACOSX_VERSION_MIN)
# The macro takes the version with no dots, ex: 1070
# Let the flags variables get resolved in make for easier override on make
# command line.
CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
fi
fi
# Setup some hard coded includes
CCXXFLAGS_JDK="$CCXXFLAGS_JDK \
-I${JDK_OUTPUTDIR}/include \
-I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \
-I${JDK_TOPDIR}/src/share/javavm/export \
-I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \
-I${JDK_TOPDIR}/src/share/native/common \
-I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common"
# The shared libraries are compiled using the picflag.
CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "
# Executable flags
CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK $PIEFLAG"
CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PIEFLAG"
AC_SUBST(CFLAGS_JDKLIB)
AC_SUBST(CFLAGS_JDKEXE)
AC_SUBST(CXXFLAGS_JDKLIB)
AC_SUBST(CXXFLAGS_JDKEXE)
# Setup LDFLAGS et al.
#
# Now this is odd. The JDK native libraries have to link against libjvm.so
# On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
# Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
# is identical for client and server? Yes. Which is picked at runtime (client or server)?
# Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
# libraries will link to whatever is in memory. Yuck.
#
# Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
fi
# TODO: make -debug optional "--disable-full-debug-symbols"
LDFLAGS_JDK="$LDFLAGS_JDK -debug"
LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib"
LDFLAGS_JDKLIB_SUFFIX=""
if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
LDFLAGS_STACK_SIZE=1048576
else
LDFLAGS_STACK_SIZE=327680
fi
LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE"
else
if test "x$TOOLCHAIN_TYPE" = xgcc; then
# If this is a --hash-style=gnu system, use --hash-style=both, why?
# We have previously set HAS_GNU_HASH if this is the case
if test -n "$HAS_GNU_HASH"; then
LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both "
fi
if test "x$OPENJDK_TARGET_OS" = xlinux; then
# And since we now know that the linker is gnu, then add:
# -z defs, to forbid undefined symbols in object files
# -z noexecstack, to mark stack regions as non-executable
LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs -Xlinker -z -Xlinker noexecstack"
if test "x$DEBUG_LEVEL" = "xrelease"; then
# When building release libraries, tell the linker optimize them.
# Should this be supplied to the OSS linker as well?
LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
fi
fi
fi
if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
fi
LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \
-L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}"
# On some platforms (mac) the linker warns about non existing -L dirs.
# Add server first if available. Linking aginst client does not always produce the same results.
# Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
# Default to server for other variants.
if test "x$JVM_VARIANT_SERVER" = xtrue; then
LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client"
elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
else
LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
fi
LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
fi
LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
if test "x$OPENJDK_TARGET_OS" = xlinux; then
LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
fi
if test "x$TOOLCHAIN_TYPE" = xgcc; then
# Enabling pie on 32 bit builds prevents the JVM from allocating a continuous
# java heap.
if test "x$OPENJDK_TARGET_CPU_BITS" != "x32"; then
LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -pie"
fi
fi
fi
AC_SUBST(LDFLAGS_JDKLIB)
AC_SUBST(LDFLAGS_JDKEXE)
AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
AC_SUBST(LDFLAGS_CXX_JDK)
])
# FLAGS_C_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
# [RUN-IF-FALSE])
# ------------------------------------------------------------
# Check that the C compiler supports an argument
AC_DEFUN([FLAGS_C_COMPILER_CHECK_ARGUMENTS],
[
AC_MSG_CHECKING([if the C compiler supports "$1"])
supports=yes
saved_cflags="$CFLAGS"
CFLAGS="$CFLAGS $1"
AC_LANG_PUSH([C])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
[supports=no])
AC_LANG_POP([C])
CFLAGS="$saved_cflags"
AC_MSG_RESULT([$supports])
if test "x$supports" = "xyes" ; then
m4_ifval([$2], [$2], [:])
else
m4_ifval([$3], [$3], [:])
fi
])
# FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
# [RUN-IF-FALSE])
# ------------------------------------------------------------
# Check that the C++ compiler supports an argument
AC_DEFUN([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS],
[
AC_MSG_CHECKING([if the C++ compiler supports "$1"])
supports=yes
saved_cxxflags="$CXXFLAGS"
CXXFLAGS="$CXXFLAG $1"
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
[supports=no])
AC_LANG_POP([C++])
CXXFLAGS="$saved_cxxflags"
AC_MSG_RESULT([$supports])
if test "x$supports" = "xyes" ; then
m4_ifval([$2], [$2], [:])
else
m4_ifval([$3], [$3], [:])
fi
])
# FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
# [RUN-IF-FALSE])
# ------------------------------------------------------------
# Check that the C and C++ compilers support an argument
AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS],
[
FLAGS_C_COMPILER_CHECK_ARGUMENTS([$1],
[C_COMP_SUPPORTS="yes"],
[C_COMP_SUPPORTS="no"])
FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([$1],
[CXX_COMP_SUPPORTS="yes"],
[CXX_COMP_SUPPORTS="no"])
AC_MSG_CHECKING([if both compilers support "$1"])
supports=no
if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
AC_MSG_RESULT([$supports])
if test "x$supports" = "xyes" ; then
m4_ifval([$2], [$2], [:])
else
m4_ifval([$3], [$3], [:])
fi
])
AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
[
# Some Zero and Shark settings.
# ZERO_ARCHFLAG tells the compiler which mode to build for
case "${OPENJDK_TARGET_CPU}" in
s390)
ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
;;
*)
ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
esac
FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])
AC_SUBST(ZERO_ARCHFLAG)
# Check that the compiler supports -mX (or -qX on AIX) flags
# Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
[COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
[COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
])
AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
[
# These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
# runs afoul of the more aggressive versions of these optimisations.
# Notably, value range propagation now assumes that the this pointer of C++
# member functions is non-null.
NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],
[], [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])
AC_SUBST([NO_DELETE_NULL_POINTER_CHECKS_CFLAG])
NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_LIFETIME_DSE_CFLAG -Werror],
[], [NO_LIFETIME_DSE_CFLAG=""])
CFLAGS_JDK="${CFLAGS_JDK} ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
AC_SUBST([NO_LIFETIME_DSE_CFLAG])
])