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 # 25 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$TOOLCHAIN_TYPE" = xxlc; then 30 COMPILER_TARGET_BITS_FLAG="-q" 31 else 32 COMPILER_TARGET_BITS_FLAG="-m" 33 fi 34 AC_SUBST(COMPILER_TARGET_BITS_FLAG) 35 36 # FIXME: figure out if we should select AR flags depending on OS or toolchain. 37 if test "x$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) 48 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 62 63 if test "x$OPENJDK_TARGET_OS" != xwindows; then 64 POST_STRIP_CMD="$STRIP $STRIPFLAGS" 65 fi 66 AC_SUBST(POST_STRIP_CMD) 67 68 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 69 # FIXME: break out into MCSFLAGS 70 POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\"" 71 fi 72 AC_SUBST(POST_MCS_CMD) 73 74 if test "x$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) 94 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 101 102 # 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).\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0).\$(COOKED_BUILD_NUMBER)\" \ 112 -d \"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \ 113 -d \"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(JDK_MINOR_VERSION) \$(JDK_UPDATE_META_TAG)\" \ 114 -d \"JDK_FVER=\$(JDK_MINOR_VERSION),\$(JDK_MICRO_VERSION),\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0),\$(COOKED_BUILD_NUMBER)\"" 115 fi 116 AC_SUBST(RC_FLAGS) 117 118 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 119 # FIXME: likely bug, should be CCXXFLAGS_JDK? or one for C or CXX. 120 CCXXFLAGS="$CCXXFLAGS -nologo" 121 fi 122 123 if test "x$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 $SYSROOT_LDFLAGS" 145 fi 146 AC_SUBST(SYSROOT_CFLAGS) 147 AC_SUBST(SYSROOT_LDFLAGS) 148 ]) 149 150 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS], 151 [ 152 ############################################################################### 153 # 154 # How to compile shared libraries. 155 # 156 157 if test "x$TOOLCHAIN_TYPE" = xgcc; then 158 PICFLAG="-fPIC" 159 C_FLAG_REORDER='' 160 CXX_FLAG_REORDER='' 161 162 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$TOOLCHAIN_TYPE" = xmicrosoft; then 196 PICFLAG="" 197 C_FLAG_REORDER='' 198 CXX_FLAG_REORDER='' 199 SHARED_LIBRARY_FLAGS="-LD" 200 SET_EXECUTABLE_ORIGIN='' 201 SET_SHARED_LIBRARY_ORIGIN='' 202 SET_SHARED_LIBRARY_NAME='' 203 SET_SHARED_LIBRARY_MAPFILE='' 204 fi 205 206 AC_SUBST(C_FLAG_REORDER) 207 AC_SUBST(CXX_FLAG_REORDER) 208 AC_SUBST(SHARED_LIBRARY_FLAGS) 209 AC_SUBST(SET_EXECUTABLE_ORIGIN) 210 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) 211 AC_SUBST(SET_SHARED_LIBRARY_NAME) 212 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) 213 214 if test "x$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 ]) 222 223 # 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 246 247 # 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="${CXXFLAGS_JDK} -xmemalign=4s" 252 #fi 253 254 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION], 255 [ 256 257 ############################################################################### 258 # 259 # Setup the opt flags for different compilers 260 # and different operating systems. 261 # 262 263 # FIXME: this was indirectly the old default, but just inherited. 264 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 265 # C_FLAG_DEPS="-MMD -MF" 266 # fi 267 268 # 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) 279 280 # 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$TOOLCHAIN_TYPE" = xxlc; then 293 CFLAGS_DEBUG_SYMBOLS="-g" 294 CXXFLAGS_DEBUG_SYMBOLS="-g" 295 fi 296 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 297 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) 298 299 # Optimization levels 300 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 301 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xalias_level=basic -xbuiltin=%all -xdepend -xrestrict -xlibmil" 302 303 if test "x$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="$C_O_FLAG_NONE" 359 fi 360 361 AC_SUBST(C_O_FLAG_HIGHEST) 362 AC_SUBST(C_O_FLAG_HI) 363 AC_SUBST(C_O_FLAG_NORM) 364 AC_SUBST(C_O_FLAG_NONE) 365 AC_SUBST(CXX_O_FLAG_HIGHEST) 366 AC_SUBST(CXX_O_FLAG_HI) 367 AC_SUBST(CXX_O_FLAG_NORM) 368 AC_SUBST(CXX_O_FLAG_NONE) 369 ]) 370 371 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK], 372 [ 373 # Special extras... 374 if test "x$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($2CXXSTD_CXXFLAG) 390 fi 391 392 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then 393 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags]) 394 fi 395 396 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then 397 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags]) 398 fi 399 400 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then 401 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags]) 402 fi 403 404 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags], 405 [extra flags to be used when compiling jdk c-files])]) 406 407 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags], 408 [extra flags to be used when compiling jdk c++-files])]) 409 410 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags], 411 [extra flags to be used when linking jdk])]) 412 413 CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags" 414 CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags" 415 LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags" 416 417 # Hotspot needs these set in their legacy form 418 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags" 419 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags" 420 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags" 421 422 AC_SUBST(LEGACY_EXTRA_CFLAGS) 423 AC_SUBST(LEGACY_EXTRA_CXXFLAGS) 424 AC_SUBST(LEGACY_EXTRA_LDFLAGS) 425 426 ############################################################################### 427 # 428 # Now setup the CFLAGS and LDFLAGS for the JDK build. 429 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. 430 # 431 432 # Setup compiler/platform specific flags to CFLAGS_JDK, 433 # CXXFLAGS_JDK and CCXXFLAGS_JDK (common to C and CXX?) 434 if test "x$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="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE" 457 fi 458 459 CFLAGS_JDK="$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 $CCXXFLAGS_JDK -Zi -MD -Zc:wchar_t- -W3 -wd4800 \ 466 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB -DWIN32_LEAN_AND_MEAN \ 467 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \ 468 -DWIN32 -DIAL" 469 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 470 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64" 471 else 472 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86" 473 fi 474 fi 475 476 ############################################################################### 477 478 # Adjust flags according to debug level. 479 case $DEBUG_LEVEL in 480 fastdebug ) 481 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS" 482 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS" 483 C_O_FLAG_HI="$C_O_FLAG_NORM" 484 C_O_FLAG_NORM="$C_O_FLAG_NORM" 485 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 486 CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM" 487 JAVAC_FLAGS="$JAVAC_FLAGS -g" 488 ;; 489 slowdebug ) 490 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS" 491 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS" 492 C_O_FLAG_HI="$C_O_FLAG_NONE" 493 C_O_FLAG_NORM="$C_O_FLAG_NONE" 494 CXX_O_FLAG_HI="$CXX_O_FLAG_NONE" 495 CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE" 496 JAVAC_FLAGS="$JAVAC_FLAGS -g" 497 ;; 498 esac 499 500 # Setup LP64 501 CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64" 502 503 # Set some common defines. These works for all compilers, but assume 504 # -D is universally accepted. 505 506 # Setup endianness 507 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then 508 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 509 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 510 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h). 511 # Note: -Dmacro is the same as #define macro 1 512 # -Dmacro= is the same as #define macro 513 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 514 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN=" 515 else 516 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN" 517 fi 518 else 519 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they 520 # are defined in the system? 521 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 522 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN=" 523 else 524 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN" 525 fi 526 fi 527 528 # Setup target OS define. Use OS target name but in upper case. 529 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 530 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 531 532 # Setup target CPU 533 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY" 534 535 # Setup debug/release defines 536 if test "x$DEBUG_LEVEL" = xrelease; then 537 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG" 538 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 539 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED" 540 fi 541 else 542 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG" 543 fi 544 545 # Setup release name 546 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'" 547 548 549 # Set some additional per-OS defines. 550 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 551 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 552 elif test "x$OPENJDK_TARGET_OS" = xaix; then 553 # FIXME: PPC64 should not be here. 554 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DPPC64" 555 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 556 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE" 557 fi 558 559 # Additional macosx handling 560 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 561 if test "x$TOOLCHAIN_TYPE" = xgcc; then 562 # FIXME: This needs to be exported in spec.gmk due to closed legacy code. 563 # FIXME: clean this up, and/or move it elsewhere. 564 565 # Setting these parameters makes it an error to link to macosx APIs that are 566 # newer than the given OS version and makes the linked binaries compatible 567 # even if built on a newer version of the OS. 568 # The expected format is X.Y.Z 569 MACOSX_VERSION_MIN=10.7.0 570 AC_SUBST(MACOSX_VERSION_MIN) 571 572 # The macro takes the version with no dots, ex: 1070 573 # Let the flags variables get resolved in make for easier override on make 574 # command line. 575 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 576 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 577 fi 578 fi 579 580 # Setup some hard coded includes 581 CCXXFLAGS_JDK="$CCXXFLAGS_JDK \ 582 -I${JDK_OUTPUTDIR}/include \ 583 -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \ 584 -I${JDK_TOPDIR}/src/share/javavm/export \ 585 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \ 586 -I${JDK_TOPDIR}/src/share/native/common \ 587 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common" 588 589 # The shared libraries are compiled using the picflag. 590 CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 591 CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA " 592 593 # Executable flags 594 CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK" 595 CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK" 596 597 AC_SUBST(CFLAGS_JDKLIB) 598 AC_SUBST(CFLAGS_JDKEXE) 599 AC_SUBST(CXXFLAGS_JDKLIB) 600 AC_SUBST(CXXFLAGS_JDKEXE) 601 602 # Setup LDFLAGS et al. 603 # 604 # Now this is odd. The JDK native libraries have to link against libjvm.so 605 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server. 606 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library 607 # is identical for client and server? Yes. Which is picked at runtime (client or server)? 608 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following 609 # libraries will link to whatever is in memory. Yuck. 610 # 611 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh. 612 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 613 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no" 614 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 615 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh" 616 fi 617 # TODO: make -debug optional "--disable-full-debug-symbols" 618 LDFLAGS_JDK="$LDFLAGS_JDK -debug" 619 LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib" 620 LDFLAGS_JDKLIB_SUFFIX="" 621 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 622 LDFLAGS_STACK_SIZE=1048576 623 else 624 LDFLAGS_STACK_SIZE=327680 625 fi 626 LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE" 627 else 628 if test "x$TOOLCHAIN_TYPE" = xgcc; then 629 # If this is a --hash-style=gnu system, use --hash-style=both, why? 630 # We have previously set HAS_GNU_HASH if this is the case 631 if test -n "$HAS_GNU_HASH"; then 632 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both " 633 fi 634 if test "x$OPENJDK_TARGET_OS" = xlinux; then 635 # And since we now know that the linker is gnu, then add -z defs, to forbid 636 # undefined symbols in object files. 637 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs" 638 if test "x$DEBUG_LEVEL" = "xrelease"; then 639 # When building release libraries, tell the linker optimize them. 640 # Should this be supplied to the OSS linker as well? 641 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1" 642 fi 643 fi 644 fi 645 646 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 647 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext" 648 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib" 649 fi 650 651 LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \ 652 -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}" 653 654 # On some platforms (mac) the linker warns about non existing -L dirs. 655 # Add server first if available. Linking aginst client does not always produce the same results. 656 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1. 657 # Default to server for other variants. 658 if test "x$JVM_VARIANT_SERVER" = xtrue; then 659 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server" 660 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then 661 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client" 662 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then 663 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal" 664 else 665 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server" 666 fi 667 668 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm" 669 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 670 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc" 671 fi 672 673 LDFLAGS_JDKEXE="${LDFLAGS_JDK}" 674 if test "x$OPENJDK_TARGET_OS" = xlinux; then 675 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined" 676 fi 677 fi 678 AC_SUBST(LDFLAGS_JDKLIB) 679 AC_SUBST(LDFLAGS_JDKEXE) 680 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX) 681 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX) 682 AC_SUBST(LDFLAGS_CXX_JDK) 683 ]) 684 685 686 # FLAGS_C_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 687 # [RUN-IF-FALSE]) 688 # ------------------------------------------------------------ 689 # Check that the C compiler supports an argument 690 AC_DEFUN([FLAGS_C_COMPILER_CHECK_ARGUMENTS], 691 [ 692 AC_MSG_CHECKING([if the C compiler supports "$1"]) 693 supports=yes 694 695 saved_cflags="$CFLAGS" 696 CFLAGS="$CFLAGS $1" 697 AC_LANG_PUSH([C]) 698 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 699 [supports=no]) 700 AC_LANG_POP([C]) 701 CFLAGS="$saved_cflags" 702 703 AC_MSG_RESULT([$supports]) 704 if test "x$supports" = "xyes" ; then 705 m4_ifval([$2], [$2], [:]) 706 else 707 m4_ifval([$3], [$3], [:]) 708 fi 709 ]) 710 711 # FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 712 # [RUN-IF-FALSE]) 713 # ------------------------------------------------------------ 714 # Check that the C++ compiler supports an argument 715 AC_DEFUN([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS], 716 [ 717 AC_MSG_CHECKING([if the C++ compiler supports "$1"]) 718 supports=yes 719 720 saved_cxxflags="$CXXFLAGS" 721 CXXFLAGS="$CXXFLAG $1" 722 AC_LANG_PUSH([C++]) 723 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 724 [supports=no]) 725 AC_LANG_POP([C++]) 726 CXXFLAGS="$saved_cxxflags" 727 728 AC_MSG_RESULT([$supports]) 729 if test "x$supports" = "xyes" ; then 730 m4_ifval([$2], [$2], [:]) 731 else 732 m4_ifval([$3], [$3], [:]) 733 fi 734 ]) 735 736 # FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 737 # [RUN-IF-FALSE]) 738 # ------------------------------------------------------------ 739 # Check that the C and C++ compilers support an argument 740 AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS], 741 [ 742 FLAGS_C_COMPILER_CHECK_ARGUMENTS([$1], 743 [C_COMP_SUPPORTS="yes"], 744 [C_COMP_SUPPORTS="no"]) 745 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([$1], 746 [CXX_COMP_SUPPORTS="yes"], 747 [CXX_COMP_SUPPORTS="no"]) 748 749 AC_MSG_CHECKING([if both compilers support "$1"]) 750 supports=no 751 if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi 752 753 AC_MSG_RESULT([$supports]) 754 if test "x$supports" = "xyes" ; then 755 m4_ifval([$2], [$2], [:]) 756 else 757 m4_ifval([$3], [$3], [:]) 758 fi 759 ]) 760 761 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC], 762 [ 763 # Some Zero and Shark settings. 764 # ZERO_ARCHFLAG tells the compiler which mode to build for 765 case "${OPENJDK_TARGET_CPU}" in 766 s390) 767 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31" 768 ;; 769 *) 770 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 771 esac 772 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""]) 773 AC_SUBST(ZERO_ARCHFLAG) 774 775 # Check that the compiler supports -mX (or -qX on AIX) flags 776 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 777 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 778 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 779 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 780 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 781 ]) 782 783 AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS], 784 [ 785 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code 786 # runs afoul of the more aggressive versions of these optimisations. 787 # Notably, value range propagation now assumes that the this pointer of C++ 788 # member functions is non-null. 789 NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks" 790 FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror], 791 [], [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""]) 792 AC_SUBST([NO_DELETE_NULL_POINTER_CHECKS_CFLAG]) 793 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse" 794 FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_LIFETIME_DSE_CFLAG -Werror], 795 [], [NO_LIFETIME_DSE_CFLAG=""]) 796 CFLAGS_JDK="${CFLAGS_JDK} ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}" 797 AC_SUBST([NO_LIFETIME_DSE_CFLAG]) 798 ]) 799