flags.m4 revision 1003:1cf2abab835f
1# 2# Copyright (c) 2011, 2014, 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 26AC_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="$CCXXFLAGS -nologo" 121 fi 122]) 123 124AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS], 125[ 126 ############################################################################### 127 # 128 # How to compile shared libraries. 129 # 130 131 if test "x$TOOLCHAIN_TYPE" = xgcc; then 132 PICFLAG="-fPIC" 133 C_FLAG_REORDER='' 134 CXX_FLAG_REORDER='' 135 136 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 137 # Linking is different on MacOSX 138 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 139 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.' 140 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 141 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1' 142 SET_SHARED_LIBRARY_MAPFILE='' 143 else 144 # Default works for linux, might work on other platforms as well. 145 SHARED_LIBRARY_FLAGS='-shared' 146 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1' 147 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN" 148 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1' 149 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1' 150 fi 151 elif test "x$TOOLCHAIN_TYPE" = xclang; then 152 PICFLAG='' 153 C_FLAG_REORDER='' 154 CXX_FLAG_REORDER='' 155 156 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 157 # Linking is different on MacOSX 158 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 159 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.' 160 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 161 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1' 162 SET_SHARED_LIBRARY_MAPFILE='' 163 else 164 # Default works for linux, might work on other platforms as well. 165 SHARED_LIBRARY_FLAGS='-shared' 166 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1' 167 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN" 168 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1' 169 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1' 170 fi 171 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 172 PICFLAG="-KPIC" 173 C_FLAG_REORDER='-xF' 174 CXX_FLAG_REORDER='-xF' 175 SHARED_LIBRARY_FLAGS="-G" 176 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1' 177 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 178 SET_SHARED_LIBRARY_NAME='' 179 SET_SHARED_LIBRARY_MAPFILE='-M[$]1' 180 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 181 PICFLAG="-qpic=large" 182 C_FLAG_REORDER='' 183 CXX_FLAG_REORDER='' 184 SHARED_LIBRARY_FLAGS="-qmkshrobj" 185 SET_EXECUTABLE_ORIGIN="" 186 SET_SHARED_LIBRARY_ORIGIN='' 187 SET_SHARED_LIBRARY_NAME='' 188 SET_SHARED_LIBRARY_MAPFILE='' 189 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 190 PICFLAG="" 191 C_FLAG_REORDER='' 192 CXX_FLAG_REORDER='' 193 SHARED_LIBRARY_FLAGS="-LD" 194 SET_EXECUTABLE_ORIGIN='' 195 SET_SHARED_LIBRARY_ORIGIN='' 196 SET_SHARED_LIBRARY_NAME='' 197 SET_SHARED_LIBRARY_MAPFILE='' 198 fi 199 200 AC_SUBST(C_FLAG_REORDER) 201 AC_SUBST(CXX_FLAG_REORDER) 202 AC_SUBST(SHARED_LIBRARY_FLAGS) 203 AC_SUBST(SET_EXECUTABLE_ORIGIN) 204 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) 205 AC_SUBST(SET_SHARED_LIBRARY_NAME) 206 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) 207 208 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 209 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__" 210 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__" 211 CFLAGS_JDKLIB_EXTRA='-xstrconst' 212 fi 213 # The (cross) compiler is now configured, we can now test capabilities 214 # of the target platform. 215]) 216 217# Documentation on common flags used for solstudio in HIGHEST. 218# 219# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be 220# done with care, there are some assumptions below that need to 221# be understood about the use of pointers, and IEEE behavior. 222# 223# -fns: Use non-standard floating point mode (not IEEE 754) 224# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) 225# -fsingle: Use single precision floating point with 'float' 226# -xalias_level=basic: Assume memory references via basic pointer types do not alias 227# (Source with excessing pointer casting and data access with mixed 228# pointer types are not recommended) 229# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions 230# (If you expect perfect errno behavior, do not use this) 231# -xdepend: Loop data dependency optimizations (need -xO3 or higher) 232# -xrestrict: Pointer parameters to functions do not overlap 233# (Similar to -xalias_level=basic usage, but less obvious sometimes. 234# If you pass in multiple pointers to the same data, do not use this) 235# -xlibmil: Inline some library routines 236# (If you expect perfect errno behavior, do not use this) 237# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) 238# (If you expect perfect errno behavior, do not use this) 239# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now 240 241 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore. 242 # Bug? 243 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then 244 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s" 245 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s" 246 #fi 247 248AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION], 249[ 250 251 ############################################################################### 252 # 253 # Setup the opt flags for different compilers 254 # and different operating systems. 255 # 256 257 # FIXME: this was indirectly the old default, but just inherited. 258 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 259 # C_FLAG_DEPS="-MMD -MF" 260 # fi 261 262 # Generate make dependency files 263 if test "x$TOOLCHAIN_TYPE" = xgcc; then 264 C_FLAG_DEPS="-MMD -MF" 265 elif test "x$TOOLCHAIN_TYPE" = xclang; then 266 C_FLAG_DEPS="-MMD -MF" 267 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 268 C_FLAG_DEPS="-xMMD -xMF" 269 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 270 C_FLAG_DEPS="-qmakedep=gcc -MF" 271 fi 272 CXX_FLAG_DEPS="$C_FLAG_DEPS" 273 AC_SUBST(C_FLAG_DEPS) 274 AC_SUBST(CXX_FLAG_DEPS) 275 276 # Debug symbols 277 if test "x$TOOLCHAIN_TYPE" = xgcc; then 278 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then 279 CFLAGS_DEBUG_SYMBOLS="-g1" 280 CXXFLAGS_DEBUG_SYMBOLS="-g1" 281 else 282 CFLAGS_DEBUG_SYMBOLS="-g" 283 CXXFLAGS_DEBUG_SYMBOLS="-g" 284 fi 285 elif test "x$TOOLCHAIN_TYPE" = xclang; then 286 CFLAGS_DEBUG_SYMBOLS="-g" 287 CXXFLAGS_DEBUG_SYMBOLS="-g" 288 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 289 CFLAGS_DEBUG_SYMBOLS="-g -xs" 290 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs" 291 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 292 CFLAGS_DEBUG_SYMBOLS="-g" 293 CXXFLAGS_DEBUG_SYMBOLS="-g" 294 fi 295 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 296 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) 297 298 # Optimization levels 299 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 300 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 301 302 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 303 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global? 304 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr" 305 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr" 306 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr" 307 C_O_FLAG_NONE="-xregs=no%frameptr" 308 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr" 309 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr" 310 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr" 311 CXX_O_FLAG_NONE="-xregs=no%frameptr" 312 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 313 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium" 314 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium" 315 fi 316 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 317 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra" 318 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 319 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 320 C_O_FLAG_NONE="" 321 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra" 322 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 323 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 324 CXX_O_FLAG_NONE="" 325 fi 326 else 327 # The remaining toolchains share opt flags between CC and CXX; 328 # setup for C and duplicate afterwards. 329 if test "x$TOOLCHAIN_TYPE" = xgcc; then 330 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 331 # On MacOSX we optimize for size, something 332 # we should do for all platforms? 333 C_O_FLAG_HIGHEST="-Os" 334 C_O_FLAG_HI="-Os" 335 C_O_FLAG_NORM="-Os" 336 C_O_FLAG_NONE="" 337 else 338 C_O_FLAG_HIGHEST="-O3" 339 C_O_FLAG_HI="-O3" 340 C_O_FLAG_NORM="-O2" 341 C_O_FLAG_NONE="-O0" 342 fi 343 elif test "x$TOOLCHAIN_TYPE" = xclang; then 344 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 345 # On MacOSX we optimize for size, something 346 # we should do for all platforms? 347 C_O_FLAG_HIGHEST="-Os" 348 C_O_FLAG_HI="-Os" 349 C_O_FLAG_NORM="-Os" 350 C_O_FLAG_NONE="" 351 else 352 C_O_FLAG_HIGHEST="-O3" 353 C_O_FLAG_HI="-O3" 354 C_O_FLAG_NORM="-O2" 355 C_O_FLAG_NONE="-O0" 356 fi 357 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 358 C_O_FLAG_HIGHEST="-O3" 359 C_O_FLAG_HI="-O3 -qstrict" 360 C_O_FLAG_NORM="-O2" 361 C_O_FLAG_NONE="" 362 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 363 C_O_FLAG_HIGHEST="-O2" 364 C_O_FLAG_HI="-O1" 365 C_O_FLAG_NORM="-O1" 366 C_O_FLAG_NONE="-Od" 367 fi 368 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 369 CXX_O_FLAG_HI="$C_O_FLAG_HI" 370 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 371 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 372 fi 373 374 AC_SUBST(C_O_FLAG_HIGHEST) 375 AC_SUBST(C_O_FLAG_HI) 376 AC_SUBST(C_O_FLAG_NORM) 377 AC_SUBST(C_O_FLAG_NONE) 378 AC_SUBST(CXX_O_FLAG_HIGHEST) 379 AC_SUBST(CXX_O_FLAG_HI) 380 AC_SUBST(CXX_O_FLAG_NORM) 381 AC_SUBST(CXX_O_FLAG_NONE) 382]) 383 384AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK], 385[ 386 # Special extras... 387 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 388 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 389 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 390 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 391 fi 392 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 393 LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall" 394 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt" 395 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt" 396 fi 397 398 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then 399 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags]) 400 fi 401 402 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then 403 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags]) 404 fi 405 406 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then 407 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags]) 408 fi 409 410 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags], 411 [extra flags to be used when compiling jdk c-files])]) 412 413 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags], 414 [extra flags to be used when compiling jdk c++-files])]) 415 416 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags], 417 [extra flags to be used when linking jdk])]) 418 419 CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags" 420 CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags" 421 LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags" 422 423 # Hotspot needs these set in their legacy form 424 LEGACY_EXTRA_CFLAGS=$with_extra_cflags 425 LEGACY_EXTRA_CXXFLAGS=$with_extra_cxxflags 426 LEGACY_EXTRA_LDFLAGS=$with_extra_ldflags 427 428 AC_SUBST(LEGACY_EXTRA_CFLAGS) 429 AC_SUBST(LEGACY_EXTRA_CXXFLAGS) 430 AC_SUBST(LEGACY_EXTRA_LDFLAGS) 431 432 ############################################################################### 433 # 434 # Now setup the CFLAGS and LDFLAGS for the JDK build. 435 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. 436 # 437 438 # Setup compiler/platform specific flags to CFLAGS_JDK, 439 # CXXFLAGS_JDK and CCXXFLAGS_JDK (common to C and CXX?) 440 if test "x$TOOLCHAIN_TYPE" = xgcc; then 441 # these options are used for both C and C++ compiles 442 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Wall -Wno-parentheses -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 443 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 444 case $OPENJDK_TARGET_CPU_ARCH in 445 arm ) 446 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing 447 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 448 ;; 449 ppc ) 450 # on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing 451 ;; 452 * ) 453 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer" 454 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 455 ;; 456 esac 457 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 458 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 459 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 460 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB" 461 CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE" 462 fi 463 464 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal" 465 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib" 466 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 467 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 468 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 469 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 470 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Zi -MD -Zc:wchar_t- -W3 -wd4800 \ 471 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB -DWIN32_LEAN_AND_MEAN \ 472 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \ 473 -DWIN32 -DIAL" 474 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 475 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64" 476 else 477 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86" 478 fi 479 fi 480 481 ############################################################################### 482 483 # Adjust flags according to debug level. 484 case $DEBUG_LEVEL in 485 fastdebug ) 486 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS" 487 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS" 488 C_O_FLAG_HI="$C_O_FLAG_NORM" 489 C_O_FLAG_NORM="$C_O_FLAG_NORM" 490 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 491 CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM" 492 JAVAC_FLAGS="$JAVAC_FLAGS -g" 493 ;; 494 slowdebug ) 495 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS" 496 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS" 497 C_O_FLAG_HI="$C_O_FLAG_NONE" 498 C_O_FLAG_NORM="$C_O_FLAG_NONE" 499 CXX_O_FLAG_HI="$CXX_O_FLAG_NONE" 500 CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE" 501 JAVAC_FLAGS="$JAVAC_FLAGS -g" 502 ;; 503 esac 504 505 # Setup LP64 506 CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64" 507 508 # Set some common defines. These works for all compilers, but assume 509 # -D is universally accepted. 510 511 # Setup endianness 512 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then 513 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 514 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 515 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h). 516 # Note: -Dmacro is the same as #define macro 1 517 # -Dmacro= is the same as #define macro 518 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 519 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN=" 520 else 521 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN" 522 fi 523 else 524 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN" 525 fi 526 527 # Setup target OS define. Use OS target name but in upper case. 528 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 529 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 530 531 # Setup target CPU 532 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY" 533 534 # Setup debug/release defines 535 if test "x$DEBUG_LEVEL" = xrelease; then 536 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG" 537 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 538 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED" 539 fi 540 else 541 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG" 542 fi 543 544 # Setup release name 545 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'" 546 547 548 # Set some additional per-OS defines. 549 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 550 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 551 elif test "x$OPENJDK_TARGET_OS" = xaix; then 552 # FIXME: PPC64 should not be here. 553 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DPPC64" 554 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 555 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE" 556 fi 557 558 # Additional macosx handling 559 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 560 if test "x$TOOLCHAIN_TYPE" = xgcc; then 561 # FIXME: This needs to be exported in spec.gmk due to closed legacy code. 562 # FIXME: clean this up, and/or move it elsewhere. 563 564 # Setting these parameters makes it an error to link to macosx APIs that are 565 # newer than the given OS version and makes the linked binaries compatible 566 # even if built on a newer version of the OS. 567 # The expected format is X.Y.Z 568 MACOSX_VERSION_MIN=10.7.0 569 AC_SUBST(MACOSX_VERSION_MIN) 570 571 # The macro takes the version with no dots, ex: 1070 572 # Let the flags variables get resolved in make for easier override on make 573 # command line. 574 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 575 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 576 fi 577 fi 578 579 # Setup some hard coded includes 580 CCXXFLAGS_JDK="$CCXXFLAGS_JDK \ 581 -I${JDK_OUTPUTDIR}/include \ 582 -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \ 583 -I${JDK_TOPDIR}/src/share/javavm/export \ 584 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \ 585 -I${JDK_TOPDIR}/src/share/native/common \ 586 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common" 587 588 # The shared libraries are compiled using the picflag. 589 CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 590 CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA " 591 592 # Executable flags 593 CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK" 594 CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK" 595 596 AC_SUBST(CFLAGS_JDKLIB) 597 AC_SUBST(CFLAGS_JDKEXE) 598 AC_SUBST(CXXFLAGS_JDKLIB) 599 AC_SUBST(CXXFLAGS_JDKEXE) 600 601 # Setup LDFLAGS et al. 602 # 603 # Now this is odd. The JDK native libraries have to link against libjvm.so 604 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server. 605 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library 606 # is identical for client and server? Yes. Which is picked at runtime (client or server)? 607 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following 608 # libraries will link to whatever is in memory. Yuck. 609 # 610 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh. 611 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 612 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no" 613 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 614 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh" 615 fi 616 # TODO: make -debug optional "--disable-full-debug-symbols" 617 LDFLAGS_JDK="$LDFLAGS_JDK -debug" 618 LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib" 619 LDFLAGS_JDKLIB_SUFFIX="" 620 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 621 LDFLAGS_STACK_SIZE=1048576 622 else 623 LDFLAGS_STACK_SIZE=327680 624 fi 625 LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE" 626 else 627 if test "x$TOOLCHAIN_TYPE" = xgcc; then 628 # If this is a --hash-style=gnu system, use --hash-style=both, why? 629 # We have previously set HAS_GNU_HASH if this is the case 630 if test -n "$HAS_GNU_HASH"; then 631 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both " 632 fi 633 if test "x$OPENJDK_TARGET_OS" = xlinux; then 634 # And since we now know that the linker is gnu, then add -z defs, to forbid 635 # undefined symbols in object files. 636 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs" 637 if test "x$DEBUG_LEVEL" = "xrelease"; then 638 # When building release libraries, tell the linker optimize them. 639 # Should this be supplied to the OSS linker as well? 640 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1" 641 fi 642 fi 643 fi 644 645 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 646 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext" 647 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib" 648 fi 649 650 LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \ 651 -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}" 652 653 # On some platforms (mac) the linker warns about non existing -L dirs. 654 # Add server first if available. Linking aginst client does not always produce the same results. 655 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1. 656 # Default to server for other variants. 657 if test "x$JVM_VARIANT_SERVER" = xtrue; then 658 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server" 659 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then 660 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client" 661 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then 662 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal" 663 else 664 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server" 665 fi 666 667 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm" 668 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 669 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc" 670 fi 671 672 LDFLAGS_JDKEXE="${LDFLAGS_JDK}" 673 if test "x$OPENJDK_TARGET_OS" = xlinux; then 674 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined" 675 fi 676 fi 677 AC_SUBST(LDFLAGS_JDKLIB) 678 AC_SUBST(LDFLAGS_JDKEXE) 679 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX) 680 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX) 681 AC_SUBST(LDFLAGS_CXX_JDK) 682]) 683 684 685# FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 686# [RUN-IF-FALSE]) 687# ------------------------------------------------------------ 688# Check that the c and c++ compilers support an argument 689AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS], 690[ 691 AC_MSG_CHECKING([if compiler supports "$1"]) 692 supports=yes 693 694 saved_cflags="$CFLAGS" 695 CFLAGS="$CFLAGS $1" 696 AC_LANG_PUSH([C]) 697 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 698 [supports=no]) 699 AC_LANG_POP([C]) 700 CFLAGS="$saved_cflags" 701 702 saved_cxxflags="$CXXFLAGS" 703 CXXFLAGS="$CXXFLAG $1" 704 AC_LANG_PUSH([C++]) 705 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 706 [supports=no]) 707 AC_LANG_POP([C++]) 708 CXXFLAGS="$saved_cxxflags" 709 710 AC_MSG_RESULT([$supports]) 711 if test "x$supports" = "xyes" ; then 712 m4_ifval([$2], [$2], [:]) 713 else 714 m4_ifval([$3], [$3], [:]) 715 fi 716]) 717 718AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC], 719[ 720 # Some Zero and Shark settings. 721 # ZERO_ARCHFLAG tells the compiler which mode to build for 722 case "${OPENJDK_TARGET_CPU}" in 723 s390) 724 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31" 725 ;; 726 *) 727 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 728 esac 729 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""]) 730 AC_SUBST(ZERO_ARCHFLAG) 731 732 # Check that the compiler supports -mX (or -qX on AIX) flags 733 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 734 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 735 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 736 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 737 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 738 739 case "${TOOLCHAIN_TYPE}" in 740 microsoft) 741 CFLAGS_WARNINGS_ARE_ERRORS="/WX" 742 ;; 743 solstudio) 744 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" 745 ;; 746 gcc) 747 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 748 ;; 749 clang) 750 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 751 ;; 752 esac 753 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 754]) 755