| # |
| # Copyright (c) 2011, 2021, 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$TOOLCHAIN_TYPE" = xgcc; then |
| # Default works for linux, might work on other platforms as well. |
| SHARED_LIBRARY_FLAGS='-shared' |
| SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$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 |
| 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" = xxlc; then |
| 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$TOOLCHAIN_TYPE" = xmicrosoft; then |
| SHARED_LIBRARY_FLAGS="-dll" |
| SET_EXECUTABLE_ORIGIN='' |
| SET_SHARED_LIBRARY_ORIGIN='' |
| SET_SHARED_LIBRARY_NAME='' |
| SET_SHARED_LIBRARY_MAPFILE='-def:[$]1' |
| fi |
| |
| 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], |
| [ |
| # By default don't set any specific assembler debug |
| # info flags for toolchains unless we know they work. |
| # See JDK-8207057. |
| ASFLAGS_DEBUG_SYMBOLS="" |
| |
| # Debug prefix mapping if supported by compiler |
| DEBUG_PREFIX_CFLAGS= |
| |
| # Debug symbols |
| if test "x$TOOLCHAIN_TYPE" = xgcc; then |
| if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then |
| # Check if compiler supports -fdebug-prefix-map. If so, use that to make |
| # the debug symbol paths resolve to paths relative to the workspace root. |
| workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/" |
| DEBUG_PREFIX_CFLAGS="-fdebug-prefix-map=${workspace_root_trailing_slash}=" |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${DEBUG_PREFIX_CFLAGS}], |
| IF_FALSE: [ |
| DEBUG_PREFIX_CFLAGS= |
| ] |
| ) |
| fi |
| |
| CFLAGS_DEBUG_SYMBOLS="-g" |
| ASFLAGS_DEBUG_SYMBOLS="-g" |
| elif test "x$TOOLCHAIN_TYPE" = xclang; then |
| if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then |
| # Check if compiler supports -fdebug-prefix-map. If so, use that to make |
| # the debug symbol paths resolve to paths relative to the workspace root. |
| workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/" |
| DEBUG_PREFIX_CFLAGS="-fdebug-prefix-map=${workspace_root_trailing_slash}=" |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${DEBUG_PREFIX_CFLAGS}], |
| IF_FALSE: [ |
| DEBUG_PREFIX_CFLAGS= |
| ] |
| ) |
| fi |
| |
| CFLAGS_DEBUG_SYMBOLS="-g" |
| ASFLAGS_DEBUG_SYMBOLS="-g" |
| elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
| CFLAGS_DEBUG_SYMBOLS="-g1" |
| elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
| CFLAGS_DEBUG_SYMBOLS="-Z7" |
| fi |
| |
| if test "x$DEBUG_PREFIX_CFLAGS" != x; then |
| CFLAGS_DEBUG_SYMBOLS="$CFLAGS_DEBUG_SYMBOLS $DEBUG_PREFIX_CFLAGS" |
| ASFLAGS_DEBUG_SYMBOLS="$ASFLAGS_DEBUG_SYMBOLS $DEBUG_PREFIX_CFLAGS" |
| fi |
| |
| AC_SUBST(CFLAGS_DEBUG_SYMBOLS) |
| AC_SUBST(ASFLAGS_DEBUG_SYMBOLS) |
| ]) |
| |
| AC_DEFUN([FLAGS_SETUP_WARNINGS], |
| [ |
| # Set default value. |
| if test "x$TOOLCHAIN_TYPE" != xxlc; then |
| WARNINGS_AS_ERRORS_DEFAULT=true |
| else |
| WARNINGS_AS_ERRORS_DEFAULT=false |
| fi |
| |
| UTIL_ARG_ENABLE(NAME: warnings-as-errors, DEFAULT: $WARNINGS_AS_ERRORS_DEFAULT, |
| RESULT: WARNINGS_AS_ERRORS, |
| DEFAULT_DESC: [auto], |
| DESC: [consider native warnings to be an error]) |
| AC_SUBST(WARNINGS_AS_ERRORS) |
| |
| case "${TOOLCHAIN_TYPE}" in |
| microsoft) |
| DISABLE_WARNING_PREFIX="-wd" |
| BUILD_CC_DISABLE_WARNING_PREFIX="-wd" |
| CFLAGS_WARNINGS_ARE_ERRORS="-WX" |
| |
| WARNINGS_ENABLE_ALL="-W3" |
| DISABLED_WARNINGS="4800" |
| if test "x$TOOLCHAIN_VERSION" = x2017; then |
| # VS2017 incorrectly triggers this warning for constexpr |
| DISABLED_WARNINGS+=" 4307" |
| fi |
| ;; |
| |
| gcc) |
| DISABLE_WARNING_PREFIX="-Wno-" |
| BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" |
| CFLAGS_WARNINGS_ARE_ERRORS="-Werror" |
| |
| # Additional warnings that are not activated by -Wall and -Wextra |
| WARNINGS_ENABLE_ADDITIONAL="-Wpointer-arith -Wsign-compare \ |
| -Wunused-function -Wundef -Wunused-value -Wreturn-type \ |
| -Wtrampolines" |
| WARNINGS_ENABLE_ADDITIONAL_CXX="-Woverloaded-virtual -Wreorder" |
| WARNINGS_ENABLE_ALL_CFLAGS="-Wall -Wextra -Wformat=2 $WARNINGS_ENABLE_ADDITIONAL" |
| WARNINGS_ENABLE_ALL_CXXFLAGS="$WARNINGS_ENABLE_ALL_CFLAGS $WARNINGS_ENABLE_ADDITIONAL_CXX" |
| |
| DISABLED_WARNINGS="unused-parameter unused" |
| ;; |
| |
| clang) |
| DISABLE_WARNING_PREFIX="-Wno-" |
| BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" |
| CFLAGS_WARNINGS_ARE_ERRORS="-Werror" |
| |
| # Additional warnings that are not activated by -Wall and -Wextra |
| WARNINGS_ENABLE_ADDITIONAL="-Wpointer-arith -Wsign-compare -Wreorder \ |
| -Wunused-function -Wundef -Wunused-value -Woverloaded-virtual" |
| WARNINGS_ENABLE_ALL="-Wall -Wextra -Wformat=2 $WARNINGS_ENABLE_ADDITIONAL" |
| |
| DISABLED_WARNINGS="unknown-warning-option unused-parameter unused" |
| |
| ;; |
| |
| xlc) |
| DISABLE_WARNING_PREFIX="-Wno-" |
| CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w" |
| |
| # Possibly a better subset than "all" is "lan:trx:ret:zea:cmp:ret" |
| WARNINGS_ENABLE_ALL="-qinfo=all -qformat=all" |
| DISABLED_WARNINGS="" |
| ;; |
| esac |
| AC_SUBST(DISABLE_WARNING_PREFIX) |
| AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX) |
| AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) |
| AC_SUBST(DISABLED_WARNINGS) |
| AC_SUBST(DISABLED_WARNINGS_C) |
| AC_SUBST(DISABLED_WARNINGS_CXX) |
| ]) |
| |
| AC_DEFUN([FLAGS_SETUP_QUALITY_CHECKS], |
| [ |
| # bounds, memory and behavior checking options |
| if test "x$TOOLCHAIN_TYPE" = xgcc; then |
| case $DEBUG_LEVEL in |
| release ) |
| # no adjustment |
| ;; |
| fastdebug ) |
| # no adjustment |
| ;; |
| slowdebug ) |
| # FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS/JVM_CFLAGS_SYMBOLS it |
| # get's added conditionally on whether we produce debug symbols or not. |
| # This is most likely not really correct. |
| |
| # Add runtime stack smashing and undefined behavior checks. |
| CFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1" |
| CXXFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1" |
| |
| JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -fstack-protector-all --param ssp-buffer-size=1" |
| ;; |
| esac |
| fi |
| ]) |
| |
| AC_DEFUN([FLAGS_SETUP_OPTIMIZATION], |
| [ |
| if test "x$TOOLCHAIN_TYPE" = xgcc; then |
| C_O_FLAG_HIGHEST_JVM="-O3" |
| C_O_FLAG_HIGHEST="-O3" |
| C_O_FLAG_HI="-O3" |
| C_O_FLAG_NORM="-O2" |
| C_O_FLAG_SIZE="-Os" |
| C_O_FLAG_DEBUG="-O0" |
| C_O_FLAG_DEBUG_JVM="-O0" |
| C_O_FLAG_NONE="-O0" |
| # -D_FORTIFY_SOURCE=2 hardening option needs optimization (at least -O1) enabled |
| # set for lower O-levels -U_FORTIFY_SOURCE to overwrite previous settings |
| if test "x$OPENJDK_TARGET_OS" = xlinux -a "x$DEBUG_LEVEL" = "xfastdebug"; then |
| DISABLE_FORTIFY_CFLAGS="-U_FORTIFY_SOURCE" |
| # ASan doesn't work well with _FORTIFY_SOURCE |
| # See https://github.com/google/sanitizers/wiki/AddressSanitizer#faq |
| if test "x$ASAN_ENABLED" = xyes; then |
| ENABLE_FORTIFY_CFLAGS="${DISABLE_FORTIFY_CFLAGS}" |
| else |
| ENABLE_FORTIFY_CFLAGS="-D_FORTIFY_SOURCE=2" |
| fi |
| C_O_FLAG_HIGHEST_JVM="${C_O_FLAG_HIGHEST_JVM} ${ENABLE_FORTIFY_CFLAGS}" |
| C_O_FLAG_HIGHEST="${C_O_FLAG_HIGHEST} ${ENABLE_FORTIFY_CFLAGS}" |
| C_O_FLAG_HI="${C_O_FLAG_HI} ${ENABLE_FORTIFY_CFLAGS}" |
| C_O_FLAG_NORM="${C_O_FLAG_NORM} ${ENABLE_FORTIFY_CFLAGS}" |
| C_O_FLAG_SIZE="${C_O_FLAG_SIZE} ${DISABLE_FORTIFY_CFLAGS}" |
| C_O_FLAG_DEBUG="${C_O_FLAG_DEBUG} ${DISABLE_FORTIFY_CFLAGS}" |
| C_O_FLAG_DEBUG_JVM="${C_O_FLAG_DEBUG_JVM} ${DISABLE_FORTIFY_CFLAGS}" |
| C_O_FLAG_NONE="${C_O_FLAG_NONE} ${DISABLE_FORTIFY_CFLAGS}" |
| fi |
| elif test "x$TOOLCHAIN_TYPE" = xclang; 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_DEBUG_JVM="-O0" |
| 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" |
| |
| # 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="$CXX_O_FLAG_DEBUG" |
| ;; |
| esac |
| |
| AC_SUBST(C_O_FLAG_HIGHEST_JVM) |
| AC_SUBST(C_O_FLAG_HIGHEST) |
| AC_SUBST(C_O_FLAG_HI) |
| AC_SUBST(C_O_FLAG_NORM) |
| AC_SUBST(C_O_FLAG_NONE) |
| AC_SUBST(C_O_FLAG_SIZE) |
| AC_SUBST(CXX_O_FLAG_HIGHEST_JVM) |
| AC_SUBST(CXX_O_FLAG_HIGHEST) |
| AC_SUBST(CXX_O_FLAG_HI) |
| AC_SUBST(CXX_O_FLAG_NORM) |
| AC_SUBST(CXX_O_FLAG_NONE) |
| AC_SUBST(CXX_O_FLAG_SIZE) |
| ]) |
| |
| AC_DEFUN([FLAGS_SETUP_CFLAGS], |
| [ |
| ### CFLAGS |
| |
| FLAGS_SETUP_CFLAGS_HELPER |
| |
| FLAGS_OS=$OPENJDK_TARGET_OS |
| FLAGS_OS_TYPE=$OPENJDK_TARGET_OS_TYPE |
| FLAGS_CPU=$OPENJDK_TARGET_CPU |
| FLAGS_CPU_ARCH=$OPENJDK_TARGET_CPU_ARCH |
| FLAGS_CPU_BITS=$OPENJDK_TARGET_CPU_BITS |
| FLAGS_CPU_ENDIAN=$OPENJDK_TARGET_CPU_ENDIAN |
| FLAGS_CPU_LEGACY=$OPENJDK_TARGET_CPU_LEGACY |
| FLAGS_CPU_LEGACY_LIB=$OPENJDK_TARGET_CPU_LEGACY_LIB |
| |
| FLAGS_SETUP_CFLAGS_CPU_DEP([TARGET]) |
| |
| # Repeat the check for the BUILD_CC and BUILD_CXX. Need to also reset CFLAGS |
| # since any target specific flags will likely not work with the build compiler. |
| CC_OLD="$CC" |
| CXX_OLD="$CXX" |
| CFLAGS_OLD="$CFLAGS" |
| CXXFLAGS_OLD="$CXXFLAGS" |
| CC="$BUILD_CC" |
| CXX="$BUILD_CXX" |
| CFLAGS="" |
| CXXFLAGS="" |
| |
| FLAGS_OS=$OPENJDK_BUILD_OS |
| FLAGS_OS_TYPE=$OPENJDK_BUILD_OS_TYPE |
| FLAGS_CPU=$OPENJDK_BUILD_CPU |
| FLAGS_CPU_ARCH=$OPENJDK_BUILD_CPU_ARCH |
| FLAGS_CPU_BITS=$OPENJDK_BUILD_CPU_BITS |
| FLAGS_CPU_ENDIAN=$OPENJDK_BUILD_CPU_ENDIAN |
| FLAGS_CPU_LEGACY=$OPENJDK_BUILD_CPU_LEGACY |
| FLAGS_CPU_LEGACY_LIB=$OPENJDK_BUILD_CPU_LEGACY_LIB |
| |
| FLAGS_SETUP_CFLAGS_CPU_DEP([BUILD], [OPENJDK_BUILD_], [BUILD_]) |
| |
| CC="$CC_OLD" |
| CXX="$CXX_OLD" |
| CFLAGS="$CFLAGS_OLD" |
| CXXFLAGS="$CXXFLAGS_OLD" |
| ]) |
| |
| ################################################################################ |
| # platform independent |
| AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER], |
| [ |
| #### OS DEFINES, these should be independent on toolchain |
| if test "x$OPENJDK_TARGET_OS" = xlinux; then |
| CFLAGS_OS_DEF_JVM="-DLINUX" |
| CFLAGS_OS_DEF_JDK="-D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" |
| elif test "x$OPENJDK_TARGET_OS" = xmacosx; then |
| CFLAGS_OS_DEF_JVM="-D_ALLBSD_SOURCE -D_DARWIN_C_SOURCE -D_XOPEN_SOURCE" |
| CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" |
| elif test "x$OPENJDK_TARGET_OS" = xaix; then |
| CFLAGS_OS_DEF_JVM="-DAIX" |
| elif test "x$OPENJDK_TARGET_OS" = xbsd; then |
| CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE" |
| elif test "x$OPENJDK_TARGET_OS" = xwindows; then |
| CFLAGS_OS_DEF_JVM="-D_WINDOWS -DWIN32 -D_JNI_IMPLEMENTATION_" |
| fi |
| |
| CFLAGS_OS_DEF_JDK="$CFLAGS_OS_DEF_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" |
| |
| #### GLOBAL DEFINES |
| # Set some common defines. These works for all compilers, but assume |
| # -D is universally accepted. |
| |
| # Always enable optional macros for VM. |
| ALWAYS_CFLAGS_JVM="-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS" |
| |
| # Setup some hard coded includes |
| ALWAYS_CFLAGS_JDK=" \ |
| -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base \ |
| -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base/\$(OPENJDK_TARGET_OS_INCLUDE_SUBDIR) \ |
| -I${TOPDIR}/src/java.base/share/native/libjava \ |
| -I${TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava \ |
| -I${TOPDIR}/src/hotspot/share/include \ |
| -I${TOPDIR}/src/hotspot/os/${HOTSPOT_TARGET_OS_TYPE}/include" |
| |
| ############################################################################### |
| |
| # Adjust flags according to debug level. |
| # Setup debug/release defines |
| if test "x$DEBUG_LEVEL" = xrelease; then |
| DEBUG_CFLAGS_JDK="-DNDEBUG" |
| else |
| DEBUG_CFLAGS_JDK="-DDEBUG" |
| |
| if test "x$TOOLCHAIN_TYPE" = xxlc; then |
| # We need '-qminimaltoc' or '-qpic=large -bbigtoc' if the TOC overflows. |
| # Hotspot now overflows its 64K TOC (currently only for debug), |
| # so for debug we build with '-qpic=large -bbigtoc'. |
| DEBUG_CFLAGS_JVM="-qpic=large" |
| fi |
| fi |
| |
| if test "x$DEBUG_LEVEL" != xrelease; then |
| DEBUG_OPTIONS_FLAGS_JDK="$CFLAGS_DEBUG_OPTIONS" |
| DEBUG_SYMBOLS_CFLAGS_JDK="$CFLAGS_DEBUG_SYMBOLS" |
| fi |
| |
| #### TOOLCHAIN DEFINES |
| |
| if test "x$TOOLCHAIN_TYPE" = xgcc; then |
| ALWAYS_DEFINES_JVM="-D_GNU_SOURCE -D_REENTRANT" |
| elif test "x$TOOLCHAIN_TYPE" = xclang; then |
| ALWAYS_DEFINES_JVM="-D_GNU_SOURCE" |
| elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
| ALWAYS_DEFINES_JVM="-D_REENTRANT" |
| ALWAYS_DEFINES_JDK="-D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" |
| elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
| ALWAYS_DEFINES_JDK="-DWIN32_LEAN_AND_MEAN -D_CRT_SECURE_NO_DEPRECATE \ |
| -D_CRT_NONSTDC_NO_DEPRECATE -DWIN32 -DIAL" |
| ALWAYS_DEFINES_JVM="-DNOMINMAX -DWIN32_LEAN_AND_MEAN" |
| fi |
| |
| ############################################################################### |
| # |
| # |
| # CFLAGS BASIC |
| if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
| # COMMON to gcc and clang |
| TOOLCHAIN_CFLAGS_JVM="-pipe -fno-rtti -fno-exceptions \ |
| -fvisibility=hidden -fno-strict-aliasing -fno-omit-frame-pointer" |
| fi |
| |
| if test "x$TOOLCHAIN_TYPE" = xgcc; then |
| TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -fcheck-new -fstack-protector" |
| TOOLCHAIN_CFLAGS_JDK="-pipe -fstack-protector" |
| # reduce lib size on linux in link step, this needs also special compile flags |
| # do this on s390x also for libjvm (where serviceability agent is not supported) |
| if test "x$ENABLE_LINKTIME_GC" = xtrue; then |
| TOOLCHAIN_CFLAGS_JDK="$TOOLCHAIN_CFLAGS_JDK -ffunction-sections -fdata-sections" |
| if test "x$OPENJDK_TARGET_CPU" = xs390x; then |
| TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -ffunction-sections -fdata-sections" |
| fi |
| fi |
| # technically NOT for CXX (but since this gives *worse* performance, use |
| # no-strict-aliasing everywhere!) |
| TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" |
| |
| elif test "x$TOOLCHAIN_TYPE" = xclang; then |
| # Restrict the debug information created by Clang to avoid |
| # too big object files and speed the build up a little bit |
| # (see http://llvm.org/bugs/show_bug.cgi?id=7554) |
| TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -flimit-debug-info" |
| |
| # In principle the stack alignment below is cpu- and ABI-dependent and |
| # should agree with values of StackAlignmentInBytes in various |
| # src/hotspot/cpu/*/globalDefinitions_*.hpp files, but this value currently |
| # works for all platforms. |
| TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -mno-omit-leaf-frame-pointer -mstack-alignment=16" |
| |
| if test "x$OPENJDK_TARGET_OS" = xlinux; then |
| if test "x$DEBUG_LEVEL" = xrelease; then |
| # Clang does not inline as much as GCC does for functions with "inline" keyword by default. |
| # This causes noticeable slowdown in pause time for G1, and possibly in other areas. |
| # Increasing the inline hint threshold avoids the slowdown for Clang-built JVM. |
| TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -mllvm -inlinehint-threshold=100000" |
| fi |
| TOOLCHAIN_CFLAGS_JDK="-pipe" |
| TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" # technically NOT for CXX |
| fi |
| |
| elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
| # Suggested additions: -qsrcmsg to get improved error reporting |
| # set -qtbtable=full for a better traceback table/better stacks in hs_err when xlc16 is used |
| TOOLCHAIN_CFLAGS_JDK="-qtbtable=full -qchars=signed -qfullpath -qsaveopt -qstackprotect" # add on both CFLAGS |
| TOOLCHAIN_CFLAGS_JVM="-qtbtable=full -qtune=balanced \ |
| -qalias=noansi -qstrict -qtls=default -qnortti -qnoeh -qignerrno -qstackprotect" |
| elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
| TOOLCHAIN_CFLAGS_JVM="-nologo -MD -MP" |
| TOOLCHAIN_CFLAGS_JDK="-nologo -MD -Zc:wchar_t-" |
| fi |
| |
| # CFLAGS C language level for JDK sources (hotspot only uses C++) |
| # Ideally we would have a common level across all toolchains so that all sources |
| # are sure to conform to the same standard. Unfortunately neither our sources nor |
| # our toolchains are in a condition to support that. But what we loosely aim for is |
| # C99 level. |
| if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang || test "x$TOOLCHAIN_TYPE" = xxlc; then |
| # Explicitly set C99. clang and xlclang support the same flag. |
| LANGSTD_CFLAGS="-std=c99" |
| elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
| # MSVC doesn't support C99/C11 explicitly, unless you compile as C++: |
| # LANGSTD_CFLAGS="-TP" |
| # but that requires numerous changes to the sources files. So we are limited |
| # to C89/C90 plus whatever extensions Visual Studio has decided to implement. |
| # This is the lowest bar for shared code. |
| LANGSTD_CFLAGS="" |
| fi |
| TOOLCHAIN_CFLAGS_JDK_CONLY="$LANGSTD_CFLAGS $TOOLCHAIN_CFLAGS_JDK_CONLY" |
| |
| # CXXFLAGS C++ language level for all of JDK, including Hotspot. |
| if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang || test "x$TOOLCHAIN_TYPE" = xxlc; then |
| LANGSTD_CXXFLAGS="-std=c++14" |
| elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
| LANGSTD_CXXFLAGS="-std:c++14" |
| else |
| AC_MSG_ERROR([Don't know how to enable C++14 for this toolchain]) |
| fi |
| TOOLCHAIN_CFLAGS_JDK_CXXONLY="$TOOLCHAIN_CFLAGS_JDK_CXXONLY $LANGSTD_CXXFLAGS" |
| TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM $LANGSTD_CXXFLAGS" |
| ADLC_LANGSTD_CXXFLAGS="$LANGSTD_CXXFLAGS" |
| |
| # CFLAGS WARNINGS STUFF |
| # Set JVM_CFLAGS warning handling |
| if test "x$TOOLCHAIN_TYPE" = xgcc; then |
| WARNING_CFLAGS_JDK_CONLY="$WARNINGS_ENABLE_ALL_CFLAGS" |
| WARNING_CFLAGS_JDK_CXXONLY="$WARNINGS_ENABLE_ALL_CXXFLAGS" |
| WARNING_CFLAGS_JVM="$WARNINGS_ENABLE_ALL_CXXFLAGS" |
| |
| elif test "x$TOOLCHAIN_TYPE" = xclang; then |
| WARNING_CFLAGS="$WARNINGS_ENABLE_ALL" |
| |
| elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
| WARNING_CFLAGS="$WARNINGS_ENABLE_ALL" |
| |
| elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
| WARNING_CFLAGS="" # currently left empty |
| fi |
| |
| # Set some additional per-OS defines. |
| |
| # Additional macosx handling |
| if test "x$OPENJDK_TARGET_OS" = xmacosx; then |
| OS_CFLAGS="-DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \ |
| -mmacosx-version-min=$MACOSX_VERSION_MIN" |
| |
| if test -n "$MACOSX_VERSION_MAX"; then |
| OS_CFLAGS="$OS_CFLAGS \ |
| -DMAC_OS_X_VERSION_MAX_ALLOWED=$MACOSX_VERSION_MAX_NODOTS" |
| fi |
| fi |
| |
| OS_CFLAGS="$OS_CFLAGS -DLIBC=$OPENJDK_TARGET_LIBC" |
| if test "x$OPENJDK_TARGET_LIBC" = xmusl; then |
| OS_CFLAGS="$OS_CFLAGS -DMUSL_LIBC" |
| fi |
| |
| # Where does this really belong?? |
| if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
| PICFLAG="-fPIC" |
| PIEFLAG="-fPIE" |
| elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
| # '-qpic' defaults to 'qpic=small'. This means that the compiler generates only |
| # one instruction for accessing the TOC. If the TOC grows larger than 64K, the linker |
| # will have to patch this single instruction with a call to some out-of-order code which |
| # does the load from the TOC. This is of course slower, and we also would have |
| # to use '-bbigtoc' for linking anyway so we could also change the PICFLAG to 'qpic=large'. |
| # With 'qpic=large' the compiler will by default generate a two-instruction sequence which |
| # can be patched directly by the linker and does not require a jump to out-of-order code. |
| # |
| # Since large TOC causes perf. overhead, only pay it where we must. Currently this is |
| # for all libjvm variants (both gtest and normal) but no other binaries. So, build |
| # libjvm with -qpic=large and link with -bbigtoc. |
| JVM_PICFLAG="-qpic=large" |
| JDK_PICFLAG="-qpic" |
| elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
| PICFLAG="" |
| fi |
| |
| if test "x$TOOLCHAIN_TYPE" != xxlc; then |
| JVM_PICFLAG="$PICFLAG" |
| JDK_PICFLAG="$PICFLAG" |
| fi |
| |
| if test "x$OPENJDK_TARGET_OS" = xmacosx; then |
| # Linking is different on MacOSX |
| JDK_PICFLAG='' |
| if test "x$STATIC_BUILD" = xtrue; then |
| JVM_PICFLAG="" |
| fi |
| fi |
| |
| # Extra flags needed when building optional static versions of certain |
| # JDK libraries. |
| STATIC_LIBS_CFLAGS="-DSTATIC_BUILD=1" |
| if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
| STATIC_LIBS_CFLAGS="$STATIC_LIBS_CFLAGS -ffunction-sections -fdata-sections \ |
| -DJNIEXPORT='__attribute__((visibility(\"hidden\")))'" |
| else |
| STATIC_LIBS_CFLAGS="$STATIC_LIBS_CFLAGS -DJNIEXPORT=" |
| fi |
| if test "x$TOOLCHAIN_TYPE" = xgcc; then |
| # Disable relax-relocation to enable compatibility with older linkers |
| RELAX_RELOCATIONS_FLAG="-Xassembler -mrelax-relocations=no" |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${RELAX_RELOCATIONS_FLAG}], |
| IF_TRUE: [STATIC_LIBS_CFLAGS="$STATIC_LIBS_CFLAGS ${RELAX_RELOCATIONS_FLAG}"]) |
| fi |
| AC_SUBST(STATIC_LIBS_CFLAGS) |
| ]) |
| |
| ################################################################################ |
| # $1 - Either BUILD or TARGET to pick the correct OS/CPU variables to check |
| # conditionals against. |
| # $2 - Optional prefix for each variable defined. |
| # $3 - Optional prefix for compiler variables (either BUILD_ or nothing). |
| AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP], |
| [ |
| #### CPU DEFINES, these should (in theory) be independent on toolchain |
| |
| # Setup target CPU |
| # Setup endianness |
| if test "x$FLAGS_CPU_ENDIAN" = xlittle; then |
| $1_DEFINES_CPU_JVM="-DVM_LITTLE_ENDIAN" |
| $1_DEFINES_CPU_JDK="-D_LITTLE_ENDIAN" |
| else |
| $1_DEFINES_CPU_JDK="-D_BIG_ENDIAN" |
| fi |
| |
| # setup CPU bit size |
| $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DARCH='\"$FLAGS_CPU_LEGACY\"' \ |
| -D$FLAGS_CPU_LEGACY" |
| |
| if test "x$FLAGS_CPU_BITS" = x64 && test "x$FLAGS_OS" != xaix; then |
| # xlc on AIX defines _LP64=1 by default and issues a warning if we redefine it. |
| $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_LP64=1" |
| $1_DEFINES_CPU_JVM="${$1_DEFINES_CPU_JVM} -D_LP64=1" |
| fi |
| |
| # toolchain dependend, per-cpu |
| if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
| if test "x$FLAGS_CPU" = xaarch64; then |
| $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_ARM64_ -Darm64" |
| elif test "x$FLAGS_CPU" = xx86_64; then |
| $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_AMD64_ -Damd64" |
| else |
| $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_X86_ -Dx86" |
| fi |
| fi |
| |
| # CFLAGS PER CPU |
| if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
| # COMMON to gcc and clang |
| AC_MSG_CHECKING([if $1 is x86]) |
| if test "x$FLAGS_CPU" = xx86; then |
| AC_MSG_RESULT([yes]) |
| AC_MSG_CHECKING([if control flow protection is enabled by additional compiler flags]) |
| if echo "${EXTRA_CFLAGS}${EXTRA_CXXFLAGS}${EXTRA_ASFLAGS}" | ${GREP} -q 'fcf-protection' ; then |
| # cf-protection requires CMOV and thus i686 |
| $1_CFLAGS_CPU="-march=i686" |
| AC_MSG_RESULT([yes, forcing ${$1_CFLAGS_CPU}]) |
| else |
| # Force compatibility with i586 on 32 bit intel platforms. |
| $1_CFLAGS_CPU="-march=i586" |
| AC_MSG_RESULT([no, forcing ${$1_CFLAGS_CPU}]) |
| fi |
| else |
| AC_MSG_RESULT([no]) |
| fi |
| fi |
| |
| if test "x$TOOLCHAIN_TYPE" = xgcc; then |
| if test "x$FLAGS_CPU" = xaarch64; then |
| # -Wno-psabi to get rid of annoying "note: parameter passing for argument of type '<type> changed in GCC 9.1" |
| $1_CFLAGS_CPU="-Wno-psabi" |
| elif test "x$FLAGS_CPU" = xarm; then |
| # -Wno-psabi to get rid of annoying "note: the mangling of 'va_list' has changed in GCC 4.4" |
| $1_CFLAGS_CPU="-fsigned-char -Wno-psabi $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS -DJDK_ARCH_ABI_PROP_NAME='\"\$(JDK_ARCH_ABI_PROP_NAME)\"'" |
| $1_CFLAGS_CPU_JVM="-DARM" |
| elif test "x$FLAGS_CPU_ARCH" = xppc; then |
| $1_CFLAGS_CPU_JVM="-minsert-sched-nops=regroup_exact -mno-multiple -mno-string" |
| if test "x$FLAGS_CPU" = xppc64; then |
| # -mminimal-toc fixes `relocation truncated to fit' error for gcc 4.1. |
| # Use ppc64 instructions, but schedule for power5 |
| $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -mminimal-toc -mcpu=powerpc64 -mtune=power5" |
| elif test "x$FLAGS_CPU" = xppc64le; then |
| # Little endian machine uses ELFv2 ABI. |
| # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI. |
| $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power8" |
| fi |
| elif test "x$FLAGS_CPU" = xs390x; then |
| $1_CFLAGS_CPU="-mbackchain -march=z10" |
| fi |
| |
| if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then |
| # for all archs except arm and ppc, prevent gcc to omit frame pointer |
| $1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer" |
| fi |
| |
| elif test "x$TOOLCHAIN_TYPE" = xclang; then |
| if test "x$FLAGS_OS" = xlinux; then |
| # ppc test not really needed for clang |
| if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then |
| # for all archs except arm and ppc, prevent gcc to omit frame pointer |
| $1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer" |
| fi |
| fi |
| |
| elif test "x$TOOLCHAIN_TYPE" = xxlc; then |
| if test "x$FLAGS_CPU" = xppc64; then |
| $1_CFLAGS_CPU_JVM="-qarch=ppc64" |
| fi |
| |
| elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then |
| if test "x$FLAGS_CPU" = xx86; then |
| $1_CFLAGS_CPU_JVM="-arch:IA32" |
| elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then |
| if test "x$DEBUG_LEVEL" != xrelease; then |
| # NOTE: This is probably redundant; -homeparams is default on |
| # non-release builds. |
| $1_CFLAGS_CPU_JVM="-homeparams" |
| fi |
| fi |
| fi |
| |
| if test "x$TOOLCHAIN_TYPE" = xgcc; then |
| FLAGS_SETUP_GCC6_COMPILER_FLAGS($1, $3) |
| $1_TOOLCHAIN_CFLAGS="${$1_GCC6_CFLAGS}" |
| |
| $1_WARNING_CFLAGS_JVM="-Wno-format-zero-length -Wtype-limits -Wuninitialized" |
| elif test "x$TOOLCHAIN_TYPE" = xclang; then |
| NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks" |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_DELETE_NULL_POINTER_CHECKS_CFLAG], |
| PREFIX: $3, |
| IF_FALSE: [ |
| NO_DELETE_NULL_POINTER_CHECKS_CFLAG= |
| ] |
| ) |
| $1_TOOLCHAIN_CFLAGS="${NO_DELETE_NULL_POINTER_CHECKS_CFLAG}" |
| fi |
| |
| if test "x$TOOLCHAIN_TYPE" = xmicrosoft && test "x$ENABLE_REPRODUCIBLE_BUILD" = xtrue; then |
| # Enabling deterministic creates warnings if __DATE__ or __TIME__ are |
| # used, and since we are, silence that warning. |
| REPRODUCIBLE_CFLAGS="-experimental:deterministic -wd5048" |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${REPRODUCIBLE_CFLAGS}], |
| PREFIX: $3, |
| IF_FALSE: [ |
| REPRODUCIBLE_CFLAGS= |
| ] |
| ) |
| fi |
| |
| # Prevent the __FILE__ macro from generating absolute paths into the built |
| # binaries. Depending on toolchain, different mitigations are possible. |
| # * GCC and Clang of new enough versions have -fmacro-prefix-map. |
| # * For most other toolchains, supplying all source files and -I flags as |
| # relative paths fixes the issue. |
| FILE_MACRO_CFLAGS= |
| if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then |
| if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
| # Check if compiler supports -fmacro-prefix-map. If so, use that to make |
| # the __FILE__ macro resolve to paths relative to the workspace root. |
| workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/" |
| FILE_MACRO_CFLAGS="-fmacro-prefix-map=${workspace_root_trailing_slash}=" |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${FILE_MACRO_CFLAGS}], |
| PREFIX: $3, |
| IF_FALSE: [ |
| FILE_MACRO_CFLAGS= |
| ] |
| ) |
| elif test "x$TOOLCHAIN_TYPE" = xmicrosoft && |
| test "x$ENABLE_REPRODUCIBLE_BUILD" = xtrue; then |
| # There is a known issue with the pathmap if the mapping is made to the |
| # empty string. Add a minimal string "s" as prefix to work around this. |
| # PATHMAP_FLAGS is also added to LDFLAGS in flags-ldflags.m4. |
| PATHMAP_FLAGS="-pathmap:${WORKSPACE_ROOT}=s" |
| FILE_MACRO_CFLAGS="$PATHMAP_FLAGS" |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${FILE_MACRO_CFLAGS}], |
| PREFIX: $3, |
| IF_FALSE: [ |
| PATHMAP_FLAGS= |
| FILE_MACRO_CFLAGS= |
| ] |
| ) |
| fi |
| |
| AC_MSG_CHECKING([how to prevent absolute paths in output]) |
| if test "x$FILE_MACRO_CFLAGS" != x; then |
| AC_MSG_RESULT([using compiler options]) |
| else |
| AC_MSG_RESULT([using relative paths]) |
| fi |
| fi |
| AC_SUBST(FILE_MACRO_CFLAGS) |
| |
| # EXPORT to API |
| CFLAGS_JVM_COMMON="$ALWAYS_CFLAGS_JVM $ALWAYS_DEFINES_JVM \ |
| $TOOLCHAIN_CFLAGS_JVM ${$1_TOOLCHAIN_CFLAGS_JVM} \ |
| $OS_CFLAGS $OS_CFLAGS_JVM $CFLAGS_OS_DEF_JVM $DEBUG_CFLAGS_JVM \ |
| $WARNING_CFLAGS $WARNING_CFLAGS_JVM $JVM_PICFLAG $FILE_MACRO_CFLAGS \ |
| $REPRODUCIBLE_CFLAGS" |
| |
| CFLAGS_JDK_COMMON="$ALWAYS_CFLAGS_JDK $ALWAYS_DEFINES_JDK $TOOLCHAIN_CFLAGS_JDK \ |
| $OS_CFLAGS $CFLAGS_OS_DEF_JDK $DEBUG_CFLAGS_JDK $DEBUG_OPTIONS_FLAGS_JDK \ |
| $WARNING_CFLAGS $WARNING_CFLAGS_JDK $DEBUG_SYMBOLS_CFLAGS_JDK \ |
| $FILE_MACRO_CFLAGS $REPRODUCIBLE_CFLAGS" |
| |
| # Use ${$2EXTRA_CFLAGS} to block EXTRA_CFLAGS to be added to build flags. |
| # (Currently we don't have any OPENJDK_BUILD_EXTRA_CFLAGS, but that might |
| # change in the future.) |
| |
| CFLAGS_JDK_COMMON_CONLY="$TOOLCHAIN_CFLAGS_JDK_CONLY \ |
| $WARNING_CFLAGS_JDK_CONLY ${$2EXTRA_CFLAGS}" |
| CFLAGS_JDK_COMMON_CXXONLY="$ALWAYS_DEFINES_JDK_CXXONLY \ |
| $TOOLCHAIN_CFLAGS_JDK_CXXONLY \ |
| ${$1_TOOLCHAIN_CFLAGS_JDK_CXXONLY} \ |
| $WARNING_CFLAGS_JDK_CXXONLY ${$2EXTRA_CXXFLAGS}" |
| |
| $1_CFLAGS_JVM="${$1_DEFINES_CPU_JVM} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JVM} ${$1_TOOLCHAIN_CFLAGS} ${$1_WARNING_CFLAGS_JVM}" |
| $1_CFLAGS_JDK="${$1_DEFINES_CPU_JDK} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JDK} ${$1_TOOLCHAIN_CFLAGS}" |
| |
| $2JVM_CFLAGS="$CFLAGS_JVM_COMMON ${$1_CFLAGS_JVM} ${$2EXTRA_CXXFLAGS}" |
| |
| $2CFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CONLY ${$1_CFLAGS_JDK} $PIEFLAG" |
| $2CXXFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CXXONLY ${$1_CFLAGS_JDK} $PIEFLAG" |
| $2CFLAGS_JDKLIB="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CONLY ${$1_CFLAGS_JDK} \ |
| $JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}" |
| $2CXXFLAGS_JDKLIB="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CXXONLY ${$1_CFLAGS_JDK} \ |
| $JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}" |
| |
| AC_SUBST($2JVM_CFLAGS) |
| AC_SUBST($2CFLAGS_JDKLIB) |
| AC_SUBST($2CFLAGS_JDKEXE) |
| AC_SUBST($2CXXFLAGS_JDKLIB) |
| AC_SUBST($2CXXFLAGS_JDKEXE) |
| AC_SUBST($2ADLC_LANGSTD_CXXFLAGS) |
| |
| COMPILER_FP_CONTRACT_OFF_FLAG="-ffp-contract=off" |
| # Check that the compiler supports -ffp-contract=off flag |
| # Set FDLIBM_CFLAGS to -ffp-contract=off if it does. Empty |
| # otherwise. |
| # These flags are required for GCC-based builds of |
| # fdlibm with optimization without losing precision. |
| # Notably, -ffp-contract=off needs to be added for GCC >= 4.6. |
| if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_FP_CONTRACT_OFF_FLAG}], |
| PREFIX: $3, |
| IF_TRUE: [$2FDLIBM_CFLAGS=${COMPILER_FP_CONTRACT_OFF_FLAG}], |
| IF_FALSE: [$2FDLIBM_CFLAGS=""]) |
| fi |
| AC_SUBST($2FDLIBM_CFLAGS) |
| ]) |
| |
| # FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX]) |
| # Arguments: |
| # $1 - Prefix for each variable defined. |
| # $2 - Prefix for compiler variables (either BUILD_ or nothing). |
| AC_DEFUN([FLAGS_SETUP_GCC6_COMPILER_FLAGS], |
| [ |
| # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code |
| # runs afoul of the more aggressive versions of these optimisations. |
| # Notably, value range propagation now assumes that the this pointer of C++ |
| # member functions is non-null. |
| NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks" |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_DELETE_NULL_POINTER_CHECKS_CFLAG], |
| PREFIX: $2, IF_FALSE: [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""]) |
| NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse" |
| FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG], |
| PREFIX: $2, IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""]) |
| $1_GCC6_CFLAGS="${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}" |
| ]) |
