Even more restructuring.
#
# 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.
#
################################################################################
#
# Setup flags for C/C++ compiler
#
###############################################################################
#
# How to compile shared libraries.
#
AC_DEFUN([FLAGS_SETUP_SHARED_LIBS],
[
if test "x$TOOLCHAIN_TYPE" = xgcc; then
C_FLAG_REORDER=''
# Default works for linux, might work on other platforms as well.
SHARED_LIBRARY_FLAGS='-shared'
SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1'
SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
elif test "x$TOOLCHAIN_TYPE" = xclang; then
C_FLAG_REORDER=''
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
# Linking is different on MacOSX
SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0"
SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path$(or [$]1,/.)'
SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1'
SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1'
else
# Default works for linux, might work on other platforms as well.
SHARED_LIBRARY_FLAGS='-shared'
SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1'
SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
# arm specific settings
if test "x$OPENJDK_TARGET_CPU" = "xarm"; then
# '-Wl,-z,origin' isn't used on arm.
SET_SHARED_LIBRARY_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1'
else
SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
fi
fi
elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
C_FLAG_REORDER='-xF'
SHARED_LIBRARY_FLAGS="-G"
SET_EXECUTABLE_ORIGIN='-R\$$ORIGIN[$]1'
SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
SET_SHARED_LIBRARY_NAME='-h [$]1'
SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
elif test "x$TOOLCHAIN_TYPE" = xxlc; then
C_FLAG_REORDER=''
SHARED_LIBRARY_FLAGS="-qmkshrobj -bM:SRE -bnoentry"
SET_EXECUTABLE_ORIGIN=""
SET_SHARED_LIBRARY_ORIGIN=''
SET_SHARED_LIBRARY_NAME=''
SET_SHARED_LIBRARY_MAPFILE=''
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
C_FLAG_REORDER=''
SHARED_LIBRARY_FLAGS="-dll"
SET_EXECUTABLE_ORIGIN=''
SET_SHARED_LIBRARY_ORIGIN=''
SET_SHARED_LIBRARY_NAME=''
SET_SHARED_LIBRARY_MAPFILE='-def:[$]1'
fi
AC_SUBST(C_FLAG_REORDER)
AC_SUBST(SET_EXECUTABLE_ORIGIN)
AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
AC_SUBST(SET_SHARED_LIBRARY_NAME)
AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
AC_SUBST(SHARED_LIBRARY_FLAGS)
])
AC_DEFUN([FLAGS_SETUP_DEBUG_SYMBOLS],
[
# Debug symbols
if test "x$TOOLCHAIN_TYPE" = xgcc; then
if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
CFLAGS_DEBUG_SYMBOLS="-g1"
else
CFLAGS_DEBUG_SYMBOLS="-g"
fi
elif test "x$TOOLCHAIN_TYPE" = xclang; then
CFLAGS_DEBUG_SYMBOLS="-g"
elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
CFLAGS_DEBUG_SYMBOLS="-g -xs"
# -g0 enables debug symbols without disabling inlining.
CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
elif test "x$TOOLCHAIN_TYPE" = xxlc; then
CFLAGS_DEBUG_SYMBOLS="-g"
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
CFLAGS_DEBUG_SYMBOLS="-Zi"
fi
if test "x$CXXFLAGS_DEBUG_SYMBOLS" = x; then
# If we did not specify special flags for C++, use C version
CXXFLAGS_DEBUG_SYMBOLS="$CFLAGS_DEBUG_SYMBOLS"
fi
AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
# FIXME: This was never used in the old build. What to do with it?
if test "x$TOOLCHAIN_TYPE" = xgcc; then
# "-Og" suppported for GCC 4.8 and later
CFLAG_OPTIMIZE_DEBUG_FLAG="-Og"
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$CFLAG_OPTIMIZE_DEBUG_FLAG],
IF_TRUE: [HAS_CFLAG_OPTIMIZE_DEBUG=true],
IF_FALSE: [HAS_CFLAG_OPTIMIZE_DEBUG=false])
fi
# Debug symbols for JVM_CFLAGS
if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -xs"
if test "x$DEBUG_LEVEL" = xslowdebug; then
JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g"
else
# -g0 does not disable inlining, which -g does.
JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g0"
fi
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -Z7 -d2Zi+"
else
JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g"
fi
AC_SUBST(JVM_CFLAGS_SYMBOLS)
# bounds, memory and behavior checking options
if test "x$TOOLCHAIN_TYPE" = xgcc; then
case $DEBUG_LEVEL in
slowdebug )
# FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS/JVM_CFLAGS_SYMBOLS it
# get's added conditionally on whether we produce debug symbols or not.
# This is most likely not really correct.
if test "x$STACK_PROTECTOR_CFLAG" != x; then
JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS $STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
fi
;;
esac
fi
])
AC_DEFUN([FLAGS_SETUP_QUALITY_CHECKS],
[
AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors],
[do not consider native warnings to be an error @<:@enabled@:>@])])
AC_MSG_CHECKING([if native warnings are errors])
if test "x$enable_warnings_as_errors" = "xyes"; then
AC_MSG_RESULT([yes (explicitly set)])
WARNINGS_AS_ERRORS=true
elif test "x$enable_warnings_as_errors" = "xno"; then
AC_MSG_RESULT([no])
WARNINGS_AS_ERRORS=false
elif test "x$enable_warnings_as_errors" = "x"; then
AC_MSG_RESULT([yes (default)])
WARNINGS_AS_ERRORS=true
else
AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument])
fi
AC_SUBST(WARNINGS_AS_ERRORS)
case "${TOOLCHAIN_TYPE}" in
microsoft)
DISABLE_WARNING_PREFIX="-wd"
CFLAGS_WARNINGS_ARE_ERRORS="-WX"
;;
solstudio)
DISABLE_WARNING_PREFIX="-erroff="
CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all"
;;
gcc)
# Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist],
IF_TRUE: [GCC_CAN_DISABLE_WARNINGS=true],
IF_FALSE: [GCC_CAN_DISABLE_WARNINGS=false]
)
if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then
DISABLE_WARNING_PREFIX="-Wno-"
else
DISABLE_WARNING_PREFIX=
fi
CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
# Repeate the check for the BUILD_CC and BUILD_CXX. Need to also reset
# CFLAGS since any target specific flags will likely not work with the
# build compiler
CC_OLD="$CC"
CXX_OLD="$CXX"
CC="$BUILD_CC"
CXX="$BUILD_CXX"
CFLAGS_OLD="$CFLAGS"
CFLAGS=""
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist],
IF_TRUE: [BUILD_CC_CAN_DISABLE_WARNINGS=true],
IF_FALSE: [BUILD_CC_CAN_DISABLE_WARNINGS=false]
)
if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then
BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
else
BUILD_CC_DISABLE_WARNING_PREFIX=
fi
CC="$CC_OLD"
CXX="$CXX_OLD"
CFLAGS="$CFLAGS_OLD"
;;
clang)
DISABLE_WARNING_PREFIX="-Wno-"
CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
;;
xlc)
DISABLE_WARNING_PREFIX="-qsuppress="
CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w"
;;
esac
AC_SUBST(DISABLE_WARNING_PREFIX)
AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX)
AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
# bounds, memory and behavior checking options
if test "x$TOOLCHAIN_TYPE" = xgcc; then
case $DEBUG_LEVEL in
release )
# no adjustment
;;
fastdebug )
# no adjustment
;;
slowdebug )
# FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS/JVM_CFLAGS_SYMBOLS it
# get's added conditionally on whether we produce debug symbols or not.
# This is most likely not really correct.
# Add runtime stack smashing and undefined behavior checks.
# Not all versions of gcc support -fstack-protector
STACK_PROTECTOR_CFLAG="-fstack-protector-all"
FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG -Werror],
IF_FALSE: [STACK_PROTECTOR_CFLAG=""])
CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
;;
esac
fi
])
AC_DEFUN([FLAGS_SETUP_OPTIMIZATION],
[
# Optimization levels
# Most toolchains share opt flags between CC and CXX;
# setup for C and duplicate afterwards.
if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
CC_HIGHEST="-fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil"
C_O_FLAG_HIGHEST_JVM="-xO4"
C_O_FLAG_DEBUG_JVM=""
C_O_FLAG_SIZE=""
C_O_FLAG_DEBUG=""
C_O_FLAG_NONE=""
if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST"
C_O_FLAG_HI="-xO4 -Wu,-O4~yz"
C_O_FLAG_NORM="-xO2 -Wu,-O2~yz"
elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 \
-xprefetch=auto,explicit -xchip=ultra $CC_HIGHEST"
C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
fi
elif test "x$TOOLCHAIN_TYPE" = xgcc; then
C_O_FLAG_HIGHEST_JVM="-O3"
C_O_FLAG_HIGHEST="-O3"
C_O_FLAG_HI="-O3"
C_O_FLAG_NORM="-O2"
C_O_FLAG_SIZE="-Os"
C_O_FLAG_DEBUG="-O0"
C_O_FLAG_DEBUG_JVM="-O0"
C_O_FLAG_NONE="-O0"
elif test "x$TOOLCHAIN_TYPE" = xclang; then
if test "x$OPENJDK_TARGET_OS" = xmacosx; then
# On MacOSX we optimize for size, something
# we should do for all platforms?
C_O_FLAG_HIGHEST_JVM="-Os"
C_O_FLAG_HIGHEST="-Os"
C_O_FLAG_HI="-Os"
C_O_FLAG_NORM="-Os"
C_O_FLAG_DEBUG_JVM=""
else
C_O_FLAG_HIGHEST_JVM="-O3"
C_O_FLAG_HIGHEST="-O3"
C_O_FLAG_HI="-O3"
C_O_FLAG_NORM="-O2"
C_O_FLAG_DEBUG_JVM="-O0"
fi
C_O_FLAG_SIZE="-Os"
C_O_FLAG_DEBUG="-O0"
C_O_FLAG_NONE="-O0"
elif test "x$TOOLCHAIN_TYPE" = xxlc; then
C_O_FLAG_HIGHEST_JVM="-O3 -qhot=level=1 -qinline -qinlglue"
C_O_FLAG_HIGHEST="-O3 -qhot=level=1 -qinline -qinlglue"
C_O_FLAG_HI="-O3 -qinline -qinlglue"
C_O_FLAG_NORM="-O2"
C_O_FLAG_DEBUG="-qnoopt"
# FIXME: Value below not verified.
C_O_FLAG_DEBUG_JVM=""
C_O_FLAG_NONE="-qnoopt"
elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
C_O_FLAG_HIGHEST_JVM="-O2 -Oy-"
C_O_FLAG_HIGHEST="-O2"
C_O_FLAG_HI="-O1"
C_O_FLAG_NORM="-O1"
C_O_FLAG_DEBUG="-Od"
C_O_FLAG_DEBUG_JVM=""
C_O_FLAG_NONE="-Od"
C_O_FLAG_SIZE="-Os"
fi
# Now copy to C++ flags
CXX_O_FLAG_HIGHEST_JVM="$C_O_FLAG_HIGHEST_JVM"
CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
CXX_O_FLAG_HI="$C_O_FLAG_HI"
CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG"
CXX_O_FLAG_DEBUG_JVM="$C_O_FLAG_DEBUG_JVM"
CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
CXX_O_FLAG_SIZE="$C_O_FLAG_SIZE"
if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
# In solstudio, also add this to C (but not C++) flags...
C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xalias_level=basic"
fi
# Adjust optimization flags according to debug level.
case $DEBUG_LEVEL in
release )
# no adjustment
;;
fastdebug )
# Not quite so much optimization
C_O_FLAG_HI="$C_O_FLAG_NORM"
CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
;;
slowdebug )
# Disable optimization
C_O_FLAG_HIGHEST_JVM="$C_O_FLAG_DEBUG_JVM"
C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG"
C_O_FLAG_HI="$C_O_FLAG_DEBUG"
C_O_FLAG_NORM="$C_O_FLAG_DEBUG"
C_O_FLAG_SIZE="$C_O_FLAG_DEBUG"
CXX_O_FLAG_HIGHEST_JVM="$CXX_O_FLAG_DEBUG_JVM"
CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG"
CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG"
CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG"
CXX_O_FLAG_SIZE="$CXX_O_FLAG_DEBUG"
;;
esac
AC_SUBST(C_O_FLAG_HIGHEST_JVM)
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(C_O_FLAG_SIZE)
AC_SUBST(CXX_O_FLAG_HIGHEST_JVM)
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_SUBST(CXX_O_FLAG_SIZE)
])