jdk8-mips64-public: common/autoconf/flags.m4@d7057bcda329

8209002: 8u192 installed exe and dll files have wrong file version
Reviewed-by: erikj

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

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

   386                                        [], [$2CXXSTD_CXXFLAG=""])

   387     $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}"

   388     $2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}"

   389     AC_SUBST($2CXXSTD_CXXFLAG)

   390   fi

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

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

   394   fi

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

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

   398   fi

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

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

   402   fi

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

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

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

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

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

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

   413   CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"

   414   CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"

   415   LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"

   417   # Hotspot needs these set in their legacy form

   418   LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags"

   419   LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags"

   420   LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags"

   422   AC_SUBST(LEGACY_EXTRA_CFLAGS)

   423   AC_SUBST(LEGACY_EXTRA_CXXFLAGS)

   424   AC_SUBST(LEGACY_EXTRA_LDFLAGS)

   426   ###############################################################################

   427   #

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

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

   430   #

   432   # Setup compiler/platform specific flags to CFLAGS_JDK,

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

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

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

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

   437         -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"

   438     case $OPENJDK_TARGET_CPU_ARCH in

   439       arm )

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

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

   442         ;;

   443       ppc )

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

   445         ;;

   446       * )

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

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

   449         ;;

   450     esac

   451     TOOLCHAIN_CHECK_COMPILER_VERSION(6, FLAGS_SETUP_GCC6_COMPILER_FLAGS)

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

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

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

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

   456       CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"

   457     fi

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

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

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

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

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

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

   465     CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK \

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

   467         -DWIN32_LEAN_AND_MEAN \

   468         -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \

   469         -DWIN32 -DIAL"

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

   471       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64"

   472     else

   473       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86"

   474     fi

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

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

   477     # studio.

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

   479       CCXXFLAGS_JDK="$CCXXFLAGS_JDK \

   480           -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"

   481     fi

   482   fi

   484   ###############################################################################

   486   # Adjust flags according to debug level.

   487   case $DEBUG_LEVEL in

   488     fastdebug )

   489       CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"

   490       CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"

   491       C_O_FLAG_HI="$C_O_FLAG_NORM"

   492       C_O_FLAG_NORM="$C_O_FLAG_NORM"

   493       CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"

   494       CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM"

   495       JAVAC_FLAGS="$JAVAC_FLAGS -g"

   496       ;;

   497     slowdebug )

   498       CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"

   499       CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"

   500       C_O_FLAG_HI="$C_O_FLAG_NONE"

   501       C_O_FLAG_NORM="$C_O_FLAG_NONE"

   502       CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"

   503       CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"

   504       JAVAC_FLAGS="$JAVAC_FLAGS -g"

   505       ;;

   506   esac

   508   # Setup LP64

   509   CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64"

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

   512   # -D is universally accepted.

   514   # Setup endianness

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

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

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

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

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

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

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

   522       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN="

   523     else

   524       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN"

   525     fi

   526   else

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

   528     # are defined in the system?

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

   530       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN="

   531     else

   532       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN"

   533     fi

   534   fi

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

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

   538   CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"

   540   # Setup target CPU

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

   543   # Setup debug/release defines

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

   545     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG"

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

   547       CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED"

   548     fi

   549   else

   550     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG"

   551   fi

   553   # Setup release name

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

   557   # Set some additional per-OS defines.

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

   559     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"

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

   561     # FIXME: PPC64 should not be here.

   562     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DPPC64"

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

   564     CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE"

   565   fi

   567   # Additional macosx handling

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

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

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

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

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

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

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

   576       # The expected format is X.Y.Z

   577       MACOSX_VERSION_MIN=10.7.0

   578       AC_SUBST(MACOSX_VERSION_MIN)

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

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

   582       # command line.

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

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

   585     fi

   586   fi

   588   # Setup some hard coded includes

   589   CCXXFLAGS_JDK="$CCXXFLAGS_JDK \

   590       -I${JDK_OUTPUTDIR}/include \

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

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

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

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

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

   597   # The shared libraries are compiled using the picflag.

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

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

   601   # Executable flags

   602   CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK"

   603   CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK"

   605   AC_SUBST(CFLAGS_JDKLIB)

   606   AC_SUBST(CFLAGS_JDKEXE)

   607   AC_SUBST(CXXFLAGS_JDKLIB)

   608   AC_SUBST(CXXFLAGS_JDKEXE)

   610   # Setup LDFLAGS et al.

   611   #

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

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

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

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

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

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

   618   #

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

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

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

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

   623       LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"

   624     fi

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

   626     LDFLAGS_JDK="$LDFLAGS_JDK -debug"

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

   628     LDFLAGS_JDKLIB_SUFFIX=""

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

   630       LDFLAGS_STACK_SIZE=1048576

   631     else

   632       LDFLAGS_STACK_SIZE=327680

   633     fi

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

   635   else

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

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

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

   639       if test -n "$HAS_GNU_HASH"; then

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

   641       fi

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

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

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

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

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

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

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

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

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

   651         fi

   652       fi

   653     fi

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

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

   657       LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"

   658     fi

   660     LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \

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

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

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

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

   666     # Default to server for other variants.

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

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

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

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

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

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

   673     else

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

   675     fi

   677     LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"

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

   679       LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"

   680     fi

   682     LDFLAGS_JDKEXE="${LDFLAGS_JDK}"

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

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

   685     fi

   686   fi

   687   AC_SUBST(LDFLAGS_JDKLIB)

   688   AC_SUBST(LDFLAGS_JDKEXE)

   689   AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)

   690   AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)

   691   AC_SUBST(LDFLAGS_CXX_JDK)

   692 ])

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

   696 #                                  [RUN-IF-FALSE])

   697 # ------------------------------------------------------------

   698 # Check that the C compiler supports an argument

   699 AC_DEFUN([FLAGS_C_COMPILER_CHECK_ARGUMENTS],

   700 [

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

   702   supports=yes

   704   saved_cflags="$CFLAGS"

   705   CFLAGS="$CFLAGS $1"

   706   AC_LANG_PUSH([C])

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

   708       [supports=no])

   709   AC_LANG_POP([C])

   710   CFLAGS="$saved_cflags"

   712   AC_MSG_RESULT([$supports])

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

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

   715   else

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

   717   fi

   718 ])

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

   721 #                                    [RUN-IF-FALSE])

   722 # ------------------------------------------------------------

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

   724 AC_DEFUN([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS],

   725 [

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

   727   supports=yes

   729   saved_cxxflags="$CXXFLAGS"

   730   CXXFLAGS="$CXXFLAG $1"

   731   AC_LANG_PUSH([C++])

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

   733       [supports=no])

   734   AC_LANG_POP([C++])

   735   CXXFLAGS="$saved_cxxflags"

   737   AC_MSG_RESULT([$supports])

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

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

   740   else

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

   742   fi

   743 ])

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

   746 #                                [RUN-IF-FALSE])

   747 # ------------------------------------------------------------

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

   749 AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS],

   750 [

   751   FLAGS_C_COMPILER_CHECK_ARGUMENTS([$1],

   752                        [C_COMP_SUPPORTS="yes"],

   753                        [C_COMP_SUPPORTS="no"])

   754   FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([$1],

   755                      [CXX_COMP_SUPPORTS="yes"],

   756                      [CXX_COMP_SUPPORTS="no"])

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

   759   supports=no

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

   762   AC_MSG_RESULT([$supports])

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

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

   765   else

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

   767   fi

   768 ])

   770 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],

   771 [

   772   # Some Zero and Shark settings.

   773   # ZERO_ARCHFLAG tells the compiler which mode to build for

   774   case "${OPENJDK_TARGET_CPU}" in

   775     s390)

   776       ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"

   777       ;;

   778     *)

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

   780   esac

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

   782   AC_SUBST(ZERO_ARCHFLAG)

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

   785   # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does

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

   787       [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],

   788       [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])

   789   AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)

   790 ])

   792 AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS],

   793 [

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

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

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

   797   # member functions is non-null.

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

   799   FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],

   800                                      [], [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])

   801   AC_SUBST([NO_DELETE_NULL_POINTER_CHECKS_CFLAG])

   802   NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"

   803   FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_LIFETIME_DSE_CFLAG -Werror],

   804                                      [], [NO_LIFETIME_DSE_CFLAG=""])

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

   806   AC_SUBST([NO_LIFETIME_DSE_CFLAG])

   807 ])

Mercurial > jdk8-mips64-public / file revision

common/autoconf/flags.m4@d7057bcda329

common/autoconf/flags.m4