jdk8-mips64-public: common/autoconf/flags.m4@2c9ec0970599

1 #

     2 # Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.

     3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

4 #

     5 # This code is free software; you can redistribute it and/or modify it

     6 # under the terms of the GNU General Public License version 2 only, as

     7 # published by the Free Software Foundation.  Oracle designates this

     8 # particular file as subject to the "Classpath" exception as provided

     9 # by Oracle in the LICENSE file that accompanied this code.

    10 #

    11 # This code is distributed in the hope that it will be useful, but WITHOUT

    12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14 # version 2 for more details (a copy is included in the LICENSE file that

    15 # accompanied this code).

    16 #

    17 # You should have received a copy of the GNU General Public License version

    18 # 2 along with this work; if not, write to the Free Software Foundation,

    19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20 #

    21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22 # or visit www.oracle.com if you need additional information or have any

    23 # questions.

    24 #

    26 AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS],

    27 [

    28   # Option used to tell the compiler whether to create 32- or 64-bit executables

    29   if test "x$TOOLCHAIN_TYPE" = xxlc; then

    30     COMPILER_TARGET_BITS_FLAG="-q"

    31   else

    32     COMPILER_TARGET_BITS_FLAG="-m"

    33   fi

    34   AC_SUBST(COMPILER_TARGET_BITS_FLAG)

    36   # FIXME: figure out if we should select AR flags depending on OS or toolchain.

    37   if test "x$OPENJDK_TARGET_OS" = xmacosx; then

    38     ARFLAGS="-r"

    39   elif test "x$OPENJDK_TARGET_OS" = xaix; then

    40     ARFLAGS="-X64"

    41   elif test "x$OPENJDK_TARGET_OS" = xwindows; then

    42     # lib.exe is used as AR to create static libraries.

    43     ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"

    44   else

    45     ARFLAGS=""

    46   fi

    47   AC_SUBST(ARFLAGS)

    49   ## Setup strip.

    50   # FIXME: should this really be per platform, or should it be per toolchain type?

    51   # strip is not provided by clang or solstudio; so guessing platform makes most sense.

    52   # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD.

    53   if test "x$OPENJDK_TARGET_OS" = xlinux; then

    54     STRIPFLAGS="-g"

    55   elif test "x$OPENJDK_TARGET_OS" = xsolaris; then

    56     STRIPFLAGS="-x"

    57   elif test "x$OPENJDK_TARGET_OS" = xmacosx; then

    58     STRIPFLAGS="-S"

    59   elif test "x$OPENJDK_TARGET_OS" = xaix; then

    60     STRIPFLAGS="-X32_64"

    61   fi

    63   if test "x$OPENJDK_TARGET_OS" != xwindows; then

    64     POST_STRIP_CMD="$STRIP $STRIPFLAGS"

    65   fi

    66   AC_SUBST(POST_STRIP_CMD)

    68   if test "x$OPENJDK_TARGET_OS" = xsolaris; then

    69     # FIXME: break out into MCSFLAGS

    70     POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\""

    71   fi

    72   AC_SUBST(POST_MCS_CMD)

    74   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

    75     CC_OUT_OPTION=-Fo

    76     EXE_OUT_OPTION=-out:

    77     LD_OUT_OPTION=-out:

    78     AR_OUT_OPTION=-out:

    79   else

    80     # The option used to specify the target .o,.a or .so file.

    81     # When compiling, how to specify the to be created object file.

    82     CC_OUT_OPTION='-o$(SPACE)'

    83     # When linking, how to specify the to be created executable.

    84     EXE_OUT_OPTION='-o$(SPACE)'

    85     # When linking, how to specify the to be created dynamically linkable library.

    86     LD_OUT_OPTION='-o$(SPACE)'

    87     # When archiving, how to specify the to be create static archive for object files.

    88     AR_OUT_OPTION='rcs$(SPACE)'

    89   fi

    90   AC_SUBST(CC_OUT_OPTION)

    91   AC_SUBST(EXE_OUT_OPTION)

    92   AC_SUBST(LD_OUT_OPTION)

    93   AC_SUBST(AR_OUT_OPTION)

    95   # On Windows, we need to set RC flags.

    96   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

    97     RC_FLAGS="-nologo -l 0x409 -r"

    98     if test "x$VARIANT" = xOPT; then

    99       RC_FLAGS="$RC_FLAGS -d NDEBUG"

   100     fi

   102     # The version variables used to create RC_FLAGS may be overridden

   103     # in a custom configure script, or possibly the command line.

   104     # Let those variables be expanded at make time in spec.gmk.

   105     # The \$ are escaped to the shell, and the $(...) variables

   106     # are evaluated by make.

   107     RC_FLAGS="$RC_FLAGS \

   108         -d \"JDK_BUILD_ID=\$(FULL_VERSION)\" \

   109         -d \"JDK_COMPANY=\$(COMPANY_NAME)\" \

   110         -d \"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \

   111         -d \"JDK_VER=\$(JDK_MINOR_VERSION).\$(JDK_MICRO_VERSION).\$(COOKED_JDK_UPDATE_VERSION).\$(COOKED_BUILD_NUMBER)\" \

   112         -d \"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \

   113         -d \"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(JDK_MINOR_VERSION) \$(JDK_UPDATE_META_TAG)\" \

   114         -d \"JDK_FVER=\$(JDK_MINOR_VERSION),\$(JDK_MICRO_VERSION),\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0),\$(COOKED_BUILD_NUMBER)\""

   115   fi

   116   AC_SUBST(RC_FLAGS)

   118   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

   119     # FIXME: likely bug, should be CCXXFLAGS_JDK? or one for C or CXX.

   120     CCXXFLAGS="$CCXXFLAGS -nologo"

   121   fi

   123   if test "x$SYSROOT" != "x"; then

   124     if test "x$TOOLCHAIN_TYPE" = xsolstudio; then

   125       if test "x$OPENJDK_TARGET_OS" = xsolaris; then

   126         # Solaris Studio does not have a concept of sysroot. Instead we must

   127         # make sure the default include and lib dirs are appended to each

   128         # compile and link command line.

   129         SYSROOT_CFLAGS="-I$SYSROOT/usr/include"

   130         SYSROOT_LDFLAGS="-L$SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \

   131             -L$SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \

   132             -L$SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR"

   133       fi

   134     elif test "x$TOOLCHAIN_TYPE" = xgcc; then

   135       SYSROOT_CFLAGS="--sysroot=\"$SYSROOT\""

   136       SYSROOT_LDFLAGS="--sysroot=\"$SYSROOT\""

   137     elif test "x$TOOLCHAIN_TYPE" = xclang; then

   138       SYSROOT_CFLAGS="-isysroot \"$SYSROOT\""

   139       SYSROOT_LDFLAGS="-isysroot \"$SYSROOT\""

   140     fi

   141     # Propagate the sysroot args to hotspot

   142     LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $SYSROOT_CFLAGS"

   143     LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $SYSROOT_CFLAGS"

   144     LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $SYSROOT_LDFLAGS"

   145   fi

   146   AC_SUBST(SYSROOT_CFLAGS)

   147   AC_SUBST(SYSROOT_LDFLAGS)

   148 ])

   150 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],

   151 [

   152   ###############################################################################

   153   #

   154   # How to compile shared libraries.

   155   #

   157   if test "x$TOOLCHAIN_TYPE" = xgcc; then

   158     PICFLAG="-fPIC"

   159     C_FLAG_REORDER=''

   160     CXX_FLAG_REORDER=''

   162     if test "x$OPENJDK_TARGET_OS" = xmacosx; then

   163       # Linking is different on MacOSX

   164       SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"

   165       SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'

   166       SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"

   167       SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'

   168       SET_SHARED_LIBRARY_MAPFILE=''

   169     else

   170       # Default works for linux, might work on other platforms as well.

   171       SHARED_LIBRARY_FLAGS='-shared'

   172       SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'

   173       SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"

   174       SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'

   175       SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'

   176     fi

   177   elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then

   178     PICFLAG="-KPIC"

   179     C_FLAG_REORDER='-xF'

   180     CXX_FLAG_REORDER='-xF'

   181     SHARED_LIBRARY_FLAGS="-G"

   182     SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'

   183     SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"

   184     SET_SHARED_LIBRARY_NAME=''

   185     SET_SHARED_LIBRARY_MAPFILE='-M[$]1'

   186   elif test "x$TOOLCHAIN_TYPE" = xxlc; then

   187     PICFLAG="-qpic=large"

   188     C_FLAG_REORDER=''

   189     CXX_FLAG_REORDER=''

   190     SHARED_LIBRARY_FLAGS="-qmkshrobj"

   191     SET_EXECUTABLE_ORIGIN=""

   192     SET_SHARED_LIBRARY_ORIGIN=''

   193     SET_SHARED_LIBRARY_NAME=''

   194     SET_SHARED_LIBRARY_MAPFILE=''

   195   elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

   196     PICFLAG=""

   197     C_FLAG_REORDER=''

   198     CXX_FLAG_REORDER=''

   199     SHARED_LIBRARY_FLAGS="-LD"

   200     SET_EXECUTABLE_ORIGIN=''

   201     SET_SHARED_LIBRARY_ORIGIN=''

   202     SET_SHARED_LIBRARY_NAME=''

   203     SET_SHARED_LIBRARY_MAPFILE=''

   204   fi

   206   AC_SUBST(C_FLAG_REORDER)

   207   AC_SUBST(CXX_FLAG_REORDER)

   208   AC_SUBST(SHARED_LIBRARY_FLAGS)

   209   AC_SUBST(SET_EXECUTABLE_ORIGIN)

   210   AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)

   211   AC_SUBST(SET_SHARED_LIBRARY_NAME)

   212   AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)

   214   if test "x$OPENJDK_TARGET_OS" = xsolaris; then

   215     CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"

   216     CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"

   217     CFLAGS_JDKLIB_EXTRA='-xstrconst'

   218   fi

   219   # The (cross) compiler is now configured, we can now test capabilities

   220   # of the target platform.

   221 ])

   223 # Documentation on common flags used for solstudio in HIGHEST.

   224 #

   225 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be

   226 #          done with care, there are some assumptions below that need to

   227 #          be understood about the use of pointers, and IEEE behavior.

   228 #

   229 # -fns: Use non-standard floating point mode (not IEEE 754)

   230 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)

   231 # -fsingle: Use single precision floating point with 'float'

   232 # -xalias_level=basic: Assume memory references via basic pointer types do not alias

   233 #   (Source with excessing pointer casting and data access with mixed

   234 #    pointer types are not recommended)

   235 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions

   236 #   (If you expect perfect errno behavior, do not use this)

   237 # -xdepend: Loop data dependency optimizations (need -xO3 or higher)

   238 # -xrestrict: Pointer parameters to functions do not overlap

   239 #   (Similar to -xalias_level=basic usage, but less obvious sometimes.

   240 #    If you pass in multiple pointers to the same data, do not use this)

   241 # -xlibmil: Inline some library routines

   242 #   (If you expect perfect errno behavior, do not use this)

   243 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)

   244 #   (If you expect perfect errno behavior, do not use this)

   245 #  Can cause undefined external on Solaris 8 X86 on __sincos, removing for now

   247     # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.

   248     # Bug?

   249     #if test "x$OPENJDK_TARGET_CPU" = xsparc; then

   250     #  CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"

   251     #  CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"

   252     #fi

   254 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],

   255 [

   257   ###############################################################################

   258   #

   259   # Setup the opt flags for different compilers

   260   # and different operating systems.

   261   #

   263   # FIXME: this was indirectly the old default, but just inherited.

   264   # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

   265   #   C_FLAG_DEPS="-MMD -MF"

   266   # fi

   268   # Generate make dependency files

   269   if test "x$TOOLCHAIN_TYPE" = xgcc; then

   270     C_FLAG_DEPS="-MMD -MF"

   271   elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then

   272     C_FLAG_DEPS="-xMMD -xMF"

   273   elif test "x$TOOLCHAIN_TYPE" = xxlc; then

   274     C_FLAG_DEPS="-qmakedep=gcc -MF"

   275   fi

   276   CXX_FLAG_DEPS="$C_FLAG_DEPS"

   277   AC_SUBST(C_FLAG_DEPS)

   278   AC_SUBST(CXX_FLAG_DEPS)

   280   # Debug symbols

   281   if test "x$TOOLCHAIN_TYPE" = xgcc; then

   282     if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then

   283       CFLAGS_DEBUG_SYMBOLS="-g1"

   284       CXXFLAGS_DEBUG_SYMBOLS="-g1"

   285     else

   286       CFLAGS_DEBUG_SYMBOLS="-g"

   287       CXXFLAGS_DEBUG_SYMBOLS="-g"

   288     fi

   289   elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then

   290     CFLAGS_DEBUG_SYMBOLS="-g -xs"

   291     CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"

   292   elif test "x$TOOLCHAIN_TYPE" = xxlc; then

   293     CFLAGS_DEBUG_SYMBOLS="-g"

   294     CXXFLAGS_DEBUG_SYMBOLS="-g"

   295   fi

   296   AC_SUBST(CFLAGS_DEBUG_SYMBOLS)

   297   AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)

   299   # Optimization levels

   300   if test "x$TOOLCHAIN_TYPE" = xsolstudio; then

   301     CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xalias_level=basic -xbuiltin=%all -xdepend -xrestrict -xlibmil"

   303     if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then

   304       # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?

   305       C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xregs=no%frameptr"

   306       C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"

   307       C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"

   308       C_O_FLAG_NONE="-xregs=no%frameptr"

   309       CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"

   310       CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"

   311       CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"

   312       CXX_O_FLAG_NONE="-xregs=no%frameptr"

   313       if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then

   314         C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"

   315         CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"

   316       fi

   317     elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then

   318       C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"

   319       C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"

   320       C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"

   321       C_O_FLAG_NONE=""

   322       CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"

   323       CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"

   324       CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"

   325       CXX_O_FLAG_NONE=""

   326     fi

   327   else

   328     # The remaining toolchains share opt flags between CC and CXX;

   329     # setup for C and duplicate afterwards.

   330     if test "x$TOOLCHAIN_TYPE" = xgcc; then

   331       if test "x$OPENJDK_TARGET_OS" = xmacosx; then

   332         # On MacOSX we optimize for size, something

   333         # we should do for all platforms?

   334         C_O_FLAG_HIGHEST="-Os"

   335         C_O_FLAG_HI="-Os"

   336         C_O_FLAG_NORM="-Os"

   337         C_O_FLAG_NONE=""

   338       else

   339         C_O_FLAG_HIGHEST="-O3"

   340         C_O_FLAG_HI="-O3"

   341         C_O_FLAG_NORM="-O2"

   342         C_O_FLAG_NONE="-O0"

   343       fi

   344     elif test "x$TOOLCHAIN_TYPE" = xxlc; then

   345       C_O_FLAG_HIGHEST="-O3"

   346       C_O_FLAG_HI="-O3 -qstrict"

   347       C_O_FLAG_NORM="-O2"

   348       C_O_FLAG_NONE=""

   349     elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

   350       C_O_FLAG_HIGHEST="-O2"

   351       C_O_FLAG_HI="-O1"

   352       C_O_FLAG_NORM="-O1"

   353       C_O_FLAG_NONE="-Od"

   354     fi

   355     CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"

   356     CXX_O_FLAG_HI="$C_O_FLAG_HI"

   357     CXX_O_FLAG_NORM="$C_O_FLAG_NORM"

   358     CXX_O_FLAG_NONE="$C_O_FLAG_NONE"

   359   fi

   361   AC_SUBST(C_O_FLAG_HIGHEST)

   362   AC_SUBST(C_O_FLAG_HI)

   363   AC_SUBST(C_O_FLAG_NORM)

   364   AC_SUBST(C_O_FLAG_NONE)

   365   AC_SUBST(CXX_O_FLAG_HIGHEST)

   366   AC_SUBST(CXX_O_FLAG_HI)

   367   AC_SUBST(CXX_O_FLAG_NORM)

   368   AC_SUBST(CXX_O_FLAG_NONE)

   369 ])

   371 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],

   372 [

   373   # Special extras...

   374   if test "x$TOOLCHAIN_TYPE" = xsolstudio; then

   375     if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then

   376       CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"

   377       CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"

   378     fi

   379   elif test "x$TOOLCHAIN_TYPE" = xxlc; then

   380     LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall"

   381     CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"

   382     CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"

   383   elif test "x$TOOLCHAIN_TYPE" = xgcc; then

   384     case $OPENJDK_TARGET_CPU_ARCH in

   385     x86 )

   386       LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS -fstack-protector"

   387       LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS -fstack-protector"

   388       ;;

   389     x86_64 )

   390       LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS -fstack-protector"

   391       LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS -fstack-protector"

   392       ;;

   393     esac

   394     if test "x$OPENJDK_TARGET_OS" != xmacosx; then

   395       LDFLAGS_JDK="$LDFLAGS_JDK -Wl,-z,relro"

   396       LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS -Wl,-z,relro"

   397     fi

   398     $2CXXSTD_CXXFLAG="-std=gnu++98"

   399     FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]$2CXXSTD_CXXFLAG -Werror],

   400                                        [], [$2CXXSTD_CXXFLAG=""])

   401     $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}"

   402     $2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}"

   403     AC_SUBST($2CXXSTD_CXXFLAG)

   404   fi

   406   if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then

   407     AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])

   408   fi

   410   if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then

   411     AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])

   412   fi

   414   if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then

   415     AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])

   416   fi

   418   AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],

   419       [extra flags to be used when compiling jdk c-files])])

   421   AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],

   422       [extra flags to be used when compiling jdk c++-files])])

   424   AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],

   425       [extra flags to be used when linking jdk])])

   427   CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"

   428   CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"

   429   LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"

   431   # Hotspot needs these set in their legacy form

   432   LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags"

   433   LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags"

   434   LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags"

   436   AC_SUBST(LEGACY_EXTRA_CFLAGS)

   437   AC_SUBST(LEGACY_EXTRA_CXXFLAGS)

   438   AC_SUBST(LEGACY_EXTRA_LDFLAGS)

   440   ###############################################################################

   441   #

   442   # Now setup the CFLAGS and LDFLAGS for the JDK build.

   443   # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.

   444   #

   446   # Setup compiler/platform specific flags to CFLAGS_JDK,

   447   # CXXFLAGS_JDK and CCXXFLAGS_JDK (common to C and CXX?)

   448   if test "x$TOOLCHAIN_TYPE" = xgcc; then

   449     # these options are used for both C and C++ compiles

   450     CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Wall -Wno-parentheses -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \

   451         -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"

   452     case $OPENJDK_TARGET_CPU_ARCH in

   453       arm )

   454         # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing

   455         CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"

   456         ;;

   457       ppc )

   458         # on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing

   459         ;;

   460       x86 )

   461         CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer -fstack-protector"

   462         CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing -fstack-protector"

   463         ;;

   464       * )

   465         CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer"

   466         CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"

   467         ;;

   468     esac

   469     TOOLCHAIN_CHECK_COMPILER_VERSION(6, FLAGS_SETUP_GCC6_COMPILER_FLAGS)

   470   elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then

   471     CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"

   472     if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then

   473       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"

   474       CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"

   475     fi

   477     CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"

   478     CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"

   479   elif test "x$TOOLCHAIN_TYPE" = xxlc; then

   480     CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"

   481     CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"

   482   elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

   483     CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK \

   484         -Zi -MD -Zc:wchar_t- -W3 -wd4800 \

   485         -DWIN32_LEAN_AND_MEAN \

   486         -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \

   487         -DWIN32 -DIAL"

   488     if test "x$OPENJDK_TARGET_CPU" = xx86_64; then

   489       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64"

   490     else

   491       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86"

   492     fi

   493     # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to

   494     # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual

   495     # studio.

   496     if test "x$TOOLCHAIN_VERSION" = "x2010"; then

   497       CCXXFLAGS_JDK="$CCXXFLAGS_JDK \

   498           -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"

   499     fi

   500   fi

   502   ###############################################################################

   504   # Adjust flags according to debug level.

   505   case $DEBUG_LEVEL in

   506     fastdebug )

   507       CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"

   508       CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"

   509       C_O_FLAG_HI="$C_O_FLAG_NORM"

   510       C_O_FLAG_NORM="$C_O_FLAG_NORM"

   511       CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"

   512       CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM"

   513       JAVAC_FLAGS="$JAVAC_FLAGS -g"

   514       ;;

   515     slowdebug )

   516       CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"

   517       CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"

   518       C_O_FLAG_HI="$C_O_FLAG_NONE"

   519       C_O_FLAG_NORM="$C_O_FLAG_NONE"

   520       CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"

   521       CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"

   522       JAVAC_FLAGS="$JAVAC_FLAGS -g"

   523       ;;

   524   esac

   526   # Setup LP64

   527   CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64"

   529   # Set some common defines. These works for all compilers, but assume

   530   # -D is universally accepted.

   532   # Setup endianness

   533   if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then

   534     # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the

   535     #   Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN

   536     #   (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).

   537     #   Note: -Dmacro         is the same as    #define macro 1

   538     #         -Dmacro=        is the same as    #define macro

   539     if test "x$OPENJDK_TARGET_OS" = xsolaris; then

   540       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN="

   541     else

   542       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN"

   543     fi

   544   else

   545     # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they

   546     # are defined in the system?

   547     if test "x$OPENJDK_TARGET_OS" = xsolaris; then

   548       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN="

   549     else

   550       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN"

   551     fi

   552   fi

   554   # Setup target OS define. Use OS target name but in upper case.

   555   OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`

   556   CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"

   558   # Setup target CPU

   559   CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"

   561   # Setup debug/release defines

   562   if test "x$DEBUG_LEVEL" = xrelease; then

   563     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG"

   564     if test "x$OPENJDK_TARGET_OS" = xsolaris; then

   565       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED"

   566     fi

   567   else

   568     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG"

   569   fi

   571   # Setup release name

   572   CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'"

   575   # Set some additional per-OS defines.

   576   if test "x$OPENJDK_TARGET_OS" = xmacosx; then

   577     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"

   578   elif test "x$OPENJDK_TARGET_OS" = xaix; then

   579     # FIXME: PPC64 should not be here.

   580     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DPPC64"

   581   elif test "x$OPENJDK_TARGET_OS" = xbsd; then

   582     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE"

   583   fi

   585   # Additional macosx handling

   586   if test "x$OPENJDK_TARGET_OS" = xmacosx; then

   587     if test "x$TOOLCHAIN_TYPE" = xgcc; then

   588       # FIXME: This needs to be exported in spec.gmk due to closed legacy code.

   589       # FIXME: clean this up, and/or move it elsewhere.

   591       # Setting these parameters makes it an error to link to macosx APIs that are

   592       # newer than the given OS version and makes the linked binaries compatible

   593       # even if built on a newer version of the OS.

   594       # The expected format is X.Y.Z

   595       MACOSX_VERSION_MIN=10.7.0

   596       AC_SUBST(MACOSX_VERSION_MIN)

   598       # The macro takes the version with no dots, ex: 1070

   599       # Let the flags variables get resolved in make for easier override on make

   600       # command line.

   601       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"

   602       LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"

   603     fi

   604   fi

   606   # Setup some hard coded includes

   607   CCXXFLAGS_JDK="$CCXXFLAGS_JDK \

   608       -I${JDK_OUTPUTDIR}/include \

   609       -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \

   610       -I${JDK_TOPDIR}/src/share/javavm/export \

   611       -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \

   612       -I${JDK_TOPDIR}/src/share/native/common \

   613       -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common"

   615   # The shared libraries are compiled using the picflag.

   616   CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"

   617   CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "

   619   # Executable flags

   620   CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK"

   621   CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK"

   623   AC_SUBST(CFLAGS_JDKLIB)

   624   AC_SUBST(CFLAGS_JDKEXE)

   625   AC_SUBST(CXXFLAGS_JDKLIB)

   626   AC_SUBST(CXXFLAGS_JDKEXE)

   628   # Setup LDFLAGS et al.

   629   #

   630   # Now this is odd. The JDK native libraries have to link against libjvm.so

   631   # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.

   632   # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library

   633   # is identical for client and server? Yes. Which is picked at runtime (client or server)?

   634   # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following

   635   # libraries will link to whatever is in memory. Yuck.

   636   #

   637   # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.

   638   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then

   639     LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"

   640     if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then

   641       LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"

   642     fi

   643     # TODO: make -debug optional "--disable-full-debug-symbols"

   644     LDFLAGS_JDK="$LDFLAGS_JDK -debug"

   645     LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib"

   646     LDFLAGS_JDKLIB_SUFFIX=""

   647     if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then

   648       LDFLAGS_STACK_SIZE=1048576

   649     else

   650       LDFLAGS_STACK_SIZE=327680

   651     fi

   652     LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE"

   653   else

   654     if test "x$TOOLCHAIN_TYPE" = xgcc; then

   655       # If this is a --hash-style=gnu system, use --hash-style=both, why?

   656       # We have previously set HAS_GNU_HASH if this is the case

   657       if test -n "$HAS_GNU_HASH"; then

   658         LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both "

   659       fi

   660       if test "x$OPENJDK_TARGET_OS" = xlinux; then

   661         # And since we now know that the linker is gnu, then add:

   662         #   -z defs, to forbid undefined symbols in object files

   663         #   -z noexecstack, to mark stack regions as non-executable

   664         LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs -Xlinker -z -Xlinker noexecstack"

   665         if test "x$DEBUG_LEVEL" = "xrelease"; then

   666           # When building release libraries, tell the linker optimize them.

   667           # Should this be supplied to the OSS linker as well?

   668           LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"

   669         fi

   670       fi

   671     fi

   673     if test "x$TOOLCHAIN_TYPE" = xsolstudio; then

   674       LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"

   675       LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"

   676     fi

   678     LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \

   679         -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}"

   681     # On some platforms (mac) the linker warns about non existing -L dirs.

   682     # Add server first if available. Linking aginst client does not always produce the same results.

   683     # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.

   684     # Default to server for other variants.

   685     if test "x$JVM_VARIANT_SERVER" = xtrue; then

   686       LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"

   687     elif test "x$JVM_VARIANT_CLIENT" = xtrue; then

   688       LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client"

   689     elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then

   690       LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal"

   691     else

   692       LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"

   693     fi

   695     LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"

   696     if test "x$TOOLCHAIN_TYPE" = xsolstudio; then

   697       LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"

   698     fi

   700     LDFLAGS_JDKEXE="${LDFLAGS_JDK}"

   701     if test "x$OPENJDK_TARGET_OS" = xlinux; then

   702       LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"

   703     fi

   704   fi

   705   AC_SUBST(LDFLAGS_JDKLIB)

   706   AC_SUBST(LDFLAGS_JDKEXE)

   707   AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)

   708   AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)

   709   AC_SUBST(LDFLAGS_CXX_JDK)

   710 ])

   713 # FLAGS_C_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],

   714 #                                  [RUN-IF-FALSE])

   715 # ------------------------------------------------------------

   716 # Check that the C compiler supports an argument

   717 AC_DEFUN([FLAGS_C_COMPILER_CHECK_ARGUMENTS],

   718 [

   719   AC_MSG_CHECKING([if the C compiler supports "$1"])

   720   supports=yes

   722   saved_cflags="$CFLAGS"

   723   CFLAGS="$CFLAGS $1"

   724   AC_LANG_PUSH([C])

   725   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],

   726       [supports=no])

   727   AC_LANG_POP([C])

   728   CFLAGS="$saved_cflags"

   730   AC_MSG_RESULT([$supports])

   731   if test "x$supports" = "xyes" ; then

   732     m4_ifval([$2], [$2], [:])

   733   else

   734     m4_ifval([$3], [$3], [:])

   735   fi

   736 ])

   738 # FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],

   739 #                                    [RUN-IF-FALSE])

   740 # ------------------------------------------------------------

   741 # Check that the C++ compiler supports an argument

   742 AC_DEFUN([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS],

   743 [

   744   AC_MSG_CHECKING([if the C++ compiler supports "$1"])

   745   supports=yes

   747   saved_cxxflags="$CXXFLAGS"

   748   CXXFLAGS="$CXXFLAG $1"

   749   AC_LANG_PUSH([C++])

   750   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],

   751       [supports=no])

   752   AC_LANG_POP([C++])

   753   CXXFLAGS="$saved_cxxflags"

   755   AC_MSG_RESULT([$supports])

   756   if test "x$supports" = "xyes" ; then

   757     m4_ifval([$2], [$2], [:])

   758   else

   759     m4_ifval([$3], [$3], [:])

   760   fi

   761 ])

   763 # FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],

   764 #                                [RUN-IF-FALSE])

   765 # ------------------------------------------------------------

   766 # Check that the C and C++ compilers support an argument

   767 AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS],

   768 [

   769   FLAGS_C_COMPILER_CHECK_ARGUMENTS([$1],

   770                        [C_COMP_SUPPORTS="yes"],

   771                        [C_COMP_SUPPORTS="no"])

   772   FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([$1],

   773                      [CXX_COMP_SUPPORTS="yes"],

   774                      [CXX_COMP_SUPPORTS="no"])

   776   AC_MSG_CHECKING([if both compilers support "$1"])

   777   supports=no

   778   if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi

   780   AC_MSG_RESULT([$supports])

   781   if test "x$supports" = "xyes" ; then

   782     m4_ifval([$2], [$2], [:])

   783   else

   784     m4_ifval([$3], [$3], [:])

   785   fi

   786 ])

   788 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],

   789 [

   790   # Some Zero and Shark settings.

   791   # ZERO_ARCHFLAG tells the compiler which mode to build for

   792   case "${OPENJDK_TARGET_CPU}" in

   793     s390)

   794       ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"

   795       ;;

   796     *)

   797       ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"

   798   esac

   799   FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])

   800   AC_SUBST(ZERO_ARCHFLAG)

   802   # Check that the compiler supports -mX (or -qX on AIX) flags

   803   # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does

   804   FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],

   805       [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],

   806       [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])

   807   AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)

   808 ])

   810 AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS],

   811 [

   812   # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code

   813   # runs afoul of the more aggressive versions of these optimisations.

   814   # Notably, value range propagation now assumes that the this pointer of C++

   815   # member functions is non-null.

   816   NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"

   817   FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],

   818                                      [], [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])

   819   AC_SUBST([NO_DELETE_NULL_POINTER_CHECKS_CFLAG])

   820   NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"

   821   FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_LIFETIME_DSE_CFLAG -Werror],

   822                                      [], [NO_LIFETIME_DSE_CFLAG=""])

   823   CFLAGS_JDK="${CFLAGS_JDK} ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"

   824   AC_SUBST([NO_LIFETIME_DSE_CFLAG])

   825 ])

Mercurial > jdk8-mips64-public / file revision

common/autoconf/flags.m4@2c9ec0970599

common/autoconf/flags.m4