# # 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" 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 \$$$$ORIGIN[$]1' SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN" SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1' SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1' fi elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then PICFLAG="-KPIC" C_FLAG_REORDER='-xF' CXX_FLAG_REORDER='-xF' SHARED_LIBRARY_FLAGS="-G" SET_EXECUTABLE_ORIGIN='-R\$$$$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" 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$TOOLCHAIN_TYPE" = xmicrosoft; then PICFLAG="" C_FLAG_REORDER='' CXX_FLAG_REORDER='' SHARED_LIBRARY_FLAGS="-LD" SET_EXECUTABLE_ORIGIN='' SET_SHARED_LIBRARY_ORIGIN='' SET_SHARED_LIBRARY_NAME='' SET_SHARED_LIBRARY_MAPFILE='' fi AC_SUBST(C_FLAG_REORDER) AC_SUBST(CXX_FLAG_REORDER) AC_SUBST(SHARED_LIBRARY_FLAGS) AC_SUBST(SET_EXECUTABLE_ORIGIN) AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) AC_SUBST(SET_SHARED_LIBRARY_NAME) AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) if test "x$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($2CXXSTD_CXXFLAG) fi if test "x$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 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])]) DRAGONWELL_EXTRA_CFLAGS="-DVENDOR='\"Alibaba\"' \ -DVENDOR_URL='\"http://www.alibabagroup.com\"' \ -DVENDOR_URL_BUG='\"mailto:dragonwell_use@googlegroups.com\"'" DRAGONWELL_EXTRA_LDFLAGS="-Wl,--build-id=sha" CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags $DRAGONWELL_EXTRA_CFLAGS" CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags" LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags $DRAGONWELL_EXTRA_LDFLAGS" # Hotspot needs these set in their legacy form LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags $DRAGONWELL_EXTRA_CFLAGS" LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags" LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags $DRAGONWELL_EXTRA_LDFLAGS" AC_SUBST(LEGACY_EXTRA_CFLAGS) AC_SUBST(LEGACY_EXTRA_CXXFLAGS) AC_SUBST(LEGACY_EXTRA_LDFLAGS) ############################################################################### # # Now setup the CFLAGS and LDFLAGS for the JDK build. # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. # FDLIBM_CFLAGS="" # Setup compiler/platform specific flags to CFLAGS_JDK, # CXXFLAGS_JDK and CCXXFLAGS_JDK (common to C and CXX?) if test "x$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 $CFLAGS_JDK" CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK" AC_SUBST(CFLAGS_JDKLIB) AC_SUBST(CFLAGS_JDKEXE) AC_SUBST(CXXFLAGS_JDKLIB) AC_SUBST(CXXFLAGS_JDKEXE) # Setup LDFLAGS et al. # # Now this is odd. The JDK native libraries have to link against libjvm.so # On 32-bit machines there is normally two distinct libjvm.so:s, client and server. # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library # is identical for client and server? Yes. Which is picked at runtime (client or server)? # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following # libraries will link to whatever is in memory. Yuck. # # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh. if test "x$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 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]) ])