flags.m4 revision 1735:58e1d618b84c
1# 2# Copyright (c) 2011, 2015, 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# Reset the global CFLAGS/LDFLAGS variables and initialize them with the 27# corresponding configure arguments instead 28AC_DEFUN_ONCE([FLAGS_SETUP_USER_SUPPLIED_FLAGS], 29[ 30 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then 31 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags]) 32 fi 33 34 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then 35 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags]) 36 fi 37 38 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then 39 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags]) 40 fi 41 42 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags], 43 [extra flags to be used when compiling jdk c-files])]) 44 45 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags], 46 [extra flags to be used when compiling jdk c++-files])]) 47 48 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags], 49 [extra flags to be used when linking jdk])]) 50 51 EXTRA_CFLAGS="$with_extra_cflags" 52 EXTRA_CXXFLAGS="$with_extra_cxxflags" 53 EXTRA_LDFLAGS="$with_extra_ldflags" 54 55 # Hotspot needs these set in their legacy form 56 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $EXTRA_CFLAGS" 57 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $EXTRA_CXXFLAGS" 58 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $EXTRA_LDFLAGS" 59 60 AC_SUBST(LEGACY_EXTRA_CFLAGS) 61 AC_SUBST(LEGACY_EXTRA_CXXFLAGS) 62 AC_SUBST(LEGACY_EXTRA_LDFLAGS) 63 64 # The global CFLAGS and LDLAGS variables are used by configure tests and 65 # should include the extra parameters 66 CFLAGS="$EXTRA_CFLAGS" 67 CXXFLAGS="$EXTRA_CXXFLAGS" 68 LDFLAGS="$EXTRA_LDFLAGS" 69 CPPFLAGS="" 70]) 71 72# Setup the sysroot flags and add them to global CFLAGS and LDFLAGS so 73# that configure can use them while detecting compilers. 74# TOOLCHAIN_TYPE is available here. 75AC_DEFUN_ONCE([FLAGS_SETUP_SYSROOT_FLAGS], 76[ 77 if test "x$SYSROOT" != "x"; then 78 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 79 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 80 # Solaris Studio does not have a concept of sysroot. Instead we must 81 # make sure the default include and lib dirs are appended to each 82 # compile and link command line. 83 SYSROOT_CFLAGS="-I$SYSROOT/usr/include" 84 SYSROOT_LDFLAGS="-L$SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \ 85 -L$SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \ 86 -L$SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR" 87 fi 88 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 89 SYSROOT_CFLAGS="--sysroot=$SYSROOT" 90 SYSROOT_LDFLAGS="--sysroot=$SYSROOT" 91 elif test "x$TOOLCHAIN_TYPE" = xclang; then 92 SYSROOT_CFLAGS="-isysroot $SYSROOT" 93 SYSROOT_LDFLAGS="-isysroot $SYSROOT" 94 fi 95 # Propagate the sysroot args to hotspot 96 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $SYSROOT_CFLAGS" 97 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $SYSROOT_CFLAGS" 98 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $SYSROOT_LDFLAGS" 99 # The global CFLAGS and LDFLAGS variables need these for configure to function 100 CFLAGS="$CFLAGS $SYSROOT_CFLAGS" 101 CPPFLAGS="$CPPFLAGS $SYSROOT_CFLAGS" 102 CXXFLAGS="$CXXFLAGS $SYSROOT_CFLAGS" 103 LDFLAGS="$LDFLAGS $SYSROOT_LDFLAGS" 104 fi 105 106 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 107 # We also need -iframework<path>/System/Library/Frameworks 108 SYSROOT_CFLAGS="$SYSROOT_CFLAGS -iframework $SYSROOT/System/Library/Frameworks" 109 SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS -iframework $SYSROOT/System/Library/Frameworks" 110 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework 111 # set this here so it doesn't have to be peppered throughout the forest 112 SYSROOT_CFLAGS="$SYSROOT_CFLAGS -F $SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 113 SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS -F $SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 114 fi 115 116 AC_SUBST(SYSROOT_CFLAGS) 117 AC_SUBST(SYSROOT_LDFLAGS) 118]) 119 120AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS], 121[ 122 # Option used to tell the compiler whether to create 32- or 64-bit executables 123 if test "x$TOOLCHAIN_TYPE" = xxlc; then 124 COMPILER_TARGET_BITS_FLAG="-q" 125 else 126 COMPILER_TARGET_BITS_FLAG="-m" 127 fi 128 AC_SUBST(COMPILER_TARGET_BITS_FLAG) 129 130 # FIXME: figure out if we should select AR flags depending on OS or toolchain. 131 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 132 ARFLAGS="-r" 133 elif test "x$OPENJDK_TARGET_OS" = xaix; then 134 ARFLAGS="-X64" 135 elif test "x$OPENJDK_TARGET_OS" = xwindows; then 136 # lib.exe is used as AR to create static libraries. 137 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT" 138 else 139 ARFLAGS="" 140 fi 141 AC_SUBST(ARFLAGS) 142 143 ## Setup strip. 144 # FIXME: should this really be per platform, or should it be per toolchain type? 145 # strip is not provided by clang or solstudio; so guessing platform makes most sense. 146 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD. 147 if test "x$OPENJDK_TARGET_OS" = xlinux; then 148 STRIPFLAGS="-g" 149 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then 150 STRIPFLAGS="-x" 151 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 152 STRIPFLAGS="-S" 153 elif test "x$OPENJDK_TARGET_OS" = xaix; then 154 STRIPFLAGS="-X32_64" 155 fi 156 157 AC_SUBST(STRIPFLAGS) 158 159 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 160 CC_OUT_OPTION=-Fo 161 EXE_OUT_OPTION=-out: 162 LD_OUT_OPTION=-out: 163 AR_OUT_OPTION=-out: 164 else 165 # The option used to specify the target .o,.a or .so file. 166 # When compiling, how to specify the to be created object file. 167 CC_OUT_OPTION='-o$(SPACE)' 168 # When linking, how to specify the to be created executable. 169 EXE_OUT_OPTION='-o$(SPACE)' 170 # When linking, how to specify the to be created dynamically linkable library. 171 LD_OUT_OPTION='-o$(SPACE)' 172 # When archiving, how to specify the to be create static archive for object files. 173 AR_OUT_OPTION='rcs$(SPACE)' 174 fi 175 AC_SUBST(CC_OUT_OPTION) 176 AC_SUBST(EXE_OUT_OPTION) 177 AC_SUBST(LD_OUT_OPTION) 178 AC_SUBST(AR_OUT_OPTION) 179 180 # On Windows, we need to set RC flags. 181 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 182 RC_FLAGS="-nologo -l0x409" 183 if test "x$VARIANT" = xOPT; then 184 RC_FLAGS="$RC_FLAGS -DNDEBUG" 185 fi 186 187 # The version variables used to create RC_FLAGS may be overridden 188 # in a custom configure script, or possibly the command line. 189 # Let those variables be expanded at make time in spec.gmk. 190 # The \$ are escaped to the shell, and the $(...) variables 191 # are evaluated by make. 192 RC_FLAGS="$RC_FLAGS \ 193 -D\"JDK_BUILD_ID=\$(FULL_VERSION)\" \ 194 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \ 195 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \ 196 -D\"JDK_VER=\$(JDK_MINOR_VERSION).\$(JDK_MICRO_VERSION).\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0).\$(COOKED_BUILD_NUMBER)\" \ 197 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \ 198 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(JDK_MINOR_VERSION) \$(JDK_UPDATE_META_TAG)\" \ 199 -D\"JDK_FVER=\$(JDK_MINOR_VERSION),\$(JDK_MICRO_VERSION),\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0),\$(COOKED_BUILD_NUMBER)\"" 200 fi 201 AC_SUBST(RC_FLAGS) 202 203 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 204 # silence copyright notice and other headers. 205 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo" 206 fi 207]) 208 209AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS], 210[ 211 ############################################################################### 212 # 213 # How to compile shared libraries. 214 # 215 216 if test "x$TOOLCHAIN_TYPE" = xgcc; then 217 PICFLAG="-fPIC" 218 C_FLAG_REORDER='' 219 CXX_FLAG_REORDER='' 220 221 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 222 # Linking is different on MacOSX 223 if test "x$STATIC_BUILD" = xtrue; then 224 SHARED_LIBRARY_FLAGS ='-undefined dynamic_lookup' 225 else 226 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 227 fi 228 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.' 229 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 230 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1' 231 SET_SHARED_LIBRARY_MAPFILE='' 232 else 233 # Default works for linux, might work on other platforms as well. 234 SHARED_LIBRARY_FLAGS='-shared' 235 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1' 236 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN" 237 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1' 238 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1' 239 fi 240 elif test "x$TOOLCHAIN_TYPE" = xclang; then 241 PICFLAG='' 242 C_FLAG_REORDER='' 243 CXX_FLAG_REORDER='' 244 245 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 246 # Linking is different on MacOSX 247 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 248 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.' 249 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 250 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1' 251 SET_SHARED_LIBRARY_MAPFILE='' 252 else 253 # Default works for linux, might work on other platforms as well. 254 SHARED_LIBRARY_FLAGS='-shared' 255 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1' 256 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN" 257 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1' 258 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1' 259 fi 260 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 261 PICFLAG="-KPIC" 262 C_FLAG_REORDER='-xF' 263 CXX_FLAG_REORDER='-xF' 264 SHARED_LIBRARY_FLAGS="-G" 265 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1' 266 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 267 SET_SHARED_LIBRARY_NAME='' 268 SET_SHARED_LIBRARY_MAPFILE='-M[$]1' 269 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 270 PICFLAG="-qpic=large" 271 C_FLAG_REORDER='' 272 CXX_FLAG_REORDER='' 273 SHARED_LIBRARY_FLAGS="-qmkshrobj" 274 SET_EXECUTABLE_ORIGIN="" 275 SET_SHARED_LIBRARY_ORIGIN='' 276 SET_SHARED_LIBRARY_NAME='' 277 SET_SHARED_LIBRARY_MAPFILE='' 278 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 279 PICFLAG="" 280 C_FLAG_REORDER='' 281 CXX_FLAG_REORDER='' 282 SHARED_LIBRARY_FLAGS="-LD" 283 SET_EXECUTABLE_ORIGIN='' 284 SET_SHARED_LIBRARY_ORIGIN='' 285 SET_SHARED_LIBRARY_NAME='' 286 SET_SHARED_LIBRARY_MAPFILE='' 287 fi 288 289 AC_SUBST(C_FLAG_REORDER) 290 AC_SUBST(CXX_FLAG_REORDER) 291 AC_SUBST(SET_EXECUTABLE_ORIGIN) 292 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) 293 AC_SUBST(SET_SHARED_LIBRARY_NAME) 294 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) 295 296 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 297 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__" 298 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__" 299 CFLAGS_JDKLIB_EXTRA='-xstrconst' 300 fi 301 # The (cross) compiler is now configured, we can now test capabilities 302 # of the target platform. 303]) 304 305# Documentation on common flags used for solstudio in HIGHEST. 306# 307# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be 308# done with care, there are some assumptions below that need to 309# be understood about the use of pointers, and IEEE behavior. 310# 311# -fns: Use non-standard floating point mode (not IEEE 754) 312# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) 313# -fsingle: Use single precision floating point with 'float' 314# -xalias_level=basic: Assume memory references via basic pointer types do not alias 315# (Source with excessing pointer casting and data access with mixed 316# pointer types are not recommended) 317# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions 318# (If you expect perfect errno behavior, do not use this) 319# -xdepend: Loop data dependency optimizations (need -xO3 or higher) 320# -xrestrict: Pointer parameters to functions do not overlap 321# (Similar to -xalias_level=basic usage, but less obvious sometimes. 322# If you pass in multiple pointers to the same data, do not use this) 323# -xlibmil: Inline some library routines 324# (If you expect perfect errno behavior, do not use this) 325# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) 326# (If you expect perfect errno behavior, do not use this) 327# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now 328 329 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore. 330 # Bug? 331 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then 332 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s" 333 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s" 334 #fi 335 336AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION], 337[ 338 339 ############################################################################### 340 # 341 # Setup the opt flags for different compilers 342 # and different operating systems. 343 # 344 345 # FIXME: this was indirectly the old default, but just inherited. 346 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 347 # C_FLAG_DEPS="-MMD -MF" 348 # fi 349 350 # Generate make dependency files 351 if test "x$TOOLCHAIN_TYPE" = xgcc; then 352 C_FLAG_DEPS="-MMD -MF" 353 elif test "x$TOOLCHAIN_TYPE" = xclang; then 354 C_FLAG_DEPS="-MMD -MF" 355 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 356 C_FLAG_DEPS="-xMMD -xMF" 357 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 358 C_FLAG_DEPS="-qmakedep=gcc -MF" 359 fi 360 CXX_FLAG_DEPS="$C_FLAG_DEPS" 361 AC_SUBST(C_FLAG_DEPS) 362 AC_SUBST(CXX_FLAG_DEPS) 363 364 # Debug symbols 365 if test "x$TOOLCHAIN_TYPE" = xgcc; then 366 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then 367 # reduce from default "-g2" option to save space 368 CFLAGS_DEBUG_SYMBOLS="-g1" 369 CXXFLAGS_DEBUG_SYMBOLS="-g1" 370 else 371 CFLAGS_DEBUG_SYMBOLS="-g" 372 CXXFLAGS_DEBUG_SYMBOLS="-g" 373 fi 374 elif test "x$TOOLCHAIN_TYPE" = xclang; then 375 CFLAGS_DEBUG_SYMBOLS="-g" 376 CXXFLAGS_DEBUG_SYMBOLS="-g" 377 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 378 CFLAGS_DEBUG_SYMBOLS="-g -xs" 379 # FIXME: likely a bug, this disables debug symbols rather than enables them 380 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs" 381 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 382 CFLAGS_DEBUG_SYMBOLS="-g" 383 CXXFLAGS_DEBUG_SYMBOLS="-g" 384 fi 385 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 386 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) 387 388 # bounds, memory and behavior checking options 389 if test "x$TOOLCHAIN_TYPE" = xgcc; then 390 case $DEBUG_LEVEL in 391 release ) 392 # no adjustment 393 ;; 394 fastdebug ) 395 # no adjustment 396 ;; 397 slowdebug ) 398 # Add runtime stack smashing and undefined behavior checks. 399 # Not all versions of gcc support -fstack-protector 400 STACK_PROTECTOR_CFLAG="-fstack-protector-all" 401 FLAGS_COMPILER_CHECK_ARGUMENTS([$STACK_PROTECTOR_CFLAG], [], [STACK_PROTECTOR_CFLAG=""]) 402 403 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 404 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 405 ;; 406 esac 407 fi 408 409 # Optimization levels 410 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 411 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 412 413 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 414 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global? 415 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr" 416 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr" 417 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr" 418 C_O_FLAG_DEBUG="-xregs=no%frameptr" 419 C_O_FLAG_NONE="-xregs=no%frameptr" 420 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr" 421 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr" 422 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr" 423 CXX_O_FLAG_DEBUG="-xregs=no%frameptr" 424 CXX_O_FLAG_NONE="-xregs=no%frameptr" 425 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 426 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium" 427 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium" 428 fi 429 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 430 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra" 431 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 432 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 433 C_O_FLAG_DEBUG="" 434 C_O_FLAG_NONE="" 435 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra" 436 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 437 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 438 C_O_FLAG_DEBUG="" 439 CXX_O_FLAG_NONE="" 440 fi 441 else 442 # The remaining toolchains share opt flags between CC and CXX; 443 # setup for C and duplicate afterwards. 444 if test "x$TOOLCHAIN_TYPE" = xgcc; then 445 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 446 # On MacOSX we optimize for size, something 447 # we should do for all platforms? 448 C_O_FLAG_HIGHEST="-Os" 449 C_O_FLAG_HI="-Os" 450 C_O_FLAG_NORM="-Os" 451 else 452 C_O_FLAG_HIGHEST="-O3" 453 C_O_FLAG_HI="-O3" 454 C_O_FLAG_NORM="-O2" 455 fi 456 C_O_FLAG_DEBUG="-O0" 457 C_O_FLAG_NONE="-O0" 458 elif test "x$TOOLCHAIN_TYPE" = xclang; then 459 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 460 # On MacOSX we optimize for size, something 461 # we should do for all platforms? 462 C_O_FLAG_HIGHEST="-Os" 463 C_O_FLAG_HI="-Os" 464 C_O_FLAG_NORM="-Os" 465 else 466 C_O_FLAG_HIGHEST="-O3" 467 C_O_FLAG_HI="-O3" 468 C_O_FLAG_NORM="-O2" 469 fi 470 C_O_FLAG_DEBUG="-O0" 471 C_O_FLAG_NONE="-O0" 472 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 473 C_O_FLAG_HIGHEST="-O3" 474 C_O_FLAG_HI="-O3 -qstrict" 475 C_O_FLAG_NORM="-O2" 476 C_O_FLAG_DEBUG="-qnoopt" 477 C_O_FLAG_NONE="-qnoop" 478 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 479 C_O_FLAG_HIGHEST="-O2" 480 C_O_FLAG_HI="-O1" 481 C_O_FLAG_NORM="-O1" 482 C_O_FLAG_DEBUG="-Od" 483 C_O_FLAG_NONE="-Od" 484 fi 485 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 486 CXX_O_FLAG_HI="$C_O_FLAG_HI" 487 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 488 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" 489 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 490 fi 491 492 # Adjust optimization flags according to debug level. 493 case $DEBUG_LEVEL in 494 release ) 495 # no adjustment 496 ;; 497 fastdebug ) 498 # Not quite so much optimization 499 C_O_FLAG_HI="$C_O_FLAG_NORM" 500 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 501 ;; 502 slowdebug ) 503 # Disable optimization 504 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" 505 C_O_FLAG_HI="$C_O_FLAG_DEBUG" 506 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" 507 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" 508 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" 509 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" 510 ;; 511 esac 512 513 AC_SUBST(C_O_FLAG_HIGHEST) 514 AC_SUBST(C_O_FLAG_HI) 515 AC_SUBST(C_O_FLAG_NORM) 516 AC_SUBST(C_O_FLAG_DEBUG) 517 AC_SUBST(C_O_FLAG_NONE) 518 AC_SUBST(CXX_O_FLAG_HIGHEST) 519 AC_SUBST(CXX_O_FLAG_HI) 520 AC_SUBST(CXX_O_FLAG_NORM) 521 AC_SUBST(CXX_O_FLAG_DEBUG) 522 AC_SUBST(CXX_O_FLAG_NONE) 523]) 524 525AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK], 526[ 527 # Special extras... 528 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 529 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 530 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 531 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 532 fi 533 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 534 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 535 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 536 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 537 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 538 fi 539 540 CFLAGS_JDK="${CFLAGS_JDK} $EXTRA_CFLAGS" 541 CXXFLAGS_JDK="${CXXFLAGS_JDK} $EXTRA_CXXFLAGS" 542 LDFLAGS_JDK="${LDFLAGS_JDK} $EXTRA_LDFLAGS" 543 544 ############################################################################### 545 # 546 # Now setup the CFLAGS and LDFLAGS for the JDK build. 547 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. 548 # 549 550 # Setup compiler/platform specific flags into 551 # CFLAGS_JDK - C Compiler flags 552 # CXXFLAGS_JDK - C++ Compiler flags 553 # COMMON_CCXXFLAGS_JDK - common to C and C++ 554 if test "x$TOOLCHAIN_TYPE" = xgcc; then 555 if test "x$OPENJDK_TARGET_CPU" = xx86; then 556 # Force compatibility with i586 on 32 bit intel platforms. 557 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586" 558 fi 559 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 560 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 561 case $OPENJDK_TARGET_CPU_ARCH in 562 arm ) 563 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing 564 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 565 ;; 566 ppc ) 567 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 568 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 569 ;; 570 * ) 571 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 572 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 573 ;; 574 esac 575 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 576 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 577 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 578 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB" 579 fi 580 581 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal" 582 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib" 583 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 584 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 585 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 586 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 587 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK \ 588 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \ 589 -DWIN32_LEAN_AND_MEAN \ 590 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \ 591 -D_WINSOCK_DEPRECATED_NO_WARNINGS \ 592 -DWIN32 -DIAL" 593 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 594 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64" 595 else 596 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86" 597 fi 598 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to 599 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual 600 # studio. 601 if test "x$TOOLCHAIN_VERSION" = "x2010"; then 602 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \ 603 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB" 604 fi 605 fi 606 607 ############################################################################### 608 609 # Adjust flags according to debug level. 610 case $DEBUG_LEVEL in 611 fastdebug | slowdebug ) 612 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS" 613 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS" 614 JAVAC_FLAGS="$JAVAC_FLAGS -g" 615 ;; 616 release ) 617 ;; 618 * ) 619 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 620 ;; 621 esac 622 623 # Setup LP64 624 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64" 625 626 # Set some common defines. These works for all compilers, but assume 627 # -D is universally accepted. 628 629 # Setup endianness 630 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then 631 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 632 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 633 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h). 634 # Note: -Dmacro is the same as #define macro 1 635 # -Dmacro= is the same as #define macro 636 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 637 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN=" 638 else 639 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN" 640 fi 641 else 642 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they 643 # are defined in the system? 644 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 645 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN=" 646 else 647 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN" 648 fi 649 fi 650 651 # Setup target OS define. Use OS target name but in upper case. 652 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 653 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 654 655 # Setup target CPU 656 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY" 657 658 # Setup debug/release defines 659 if test "x$DEBUG_LEVEL" = xrelease; then 660 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG" 661 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 662 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED" 663 fi 664 else 665 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG" 666 fi 667 668 # Setup release name 669 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'" 670 671 672 # Set some additional per-OS defines. 673 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 674 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 675 elif test "x$OPENJDK_TARGET_OS" = xaix; then 676 # FIXME: PPC64 should not be here. 677 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DPPC64" 678 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 679 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE" 680 fi 681 682 # Additional macosx handling 683 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 684 # Setting these parameters makes it an error to link to macosx APIs that are 685 # newer than the given OS version and makes the linked binaries compatible 686 # even if built on a newer version of the OS. 687 # The expected format is X.Y.Z 688 MACOSX_VERSION_MIN=10.7.0 689 AC_SUBST(MACOSX_VERSION_MIN) 690 691 # The macro takes the version with no dots, ex: 1070 692 # Let the flags variables get resolved in make for easier override on make 693 # command line. 694 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 695 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 696 fi 697 698 # Setup some hard coded includes 699 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \ 700 -I${JDK_TOPDIR}/src/java.base/share/native/include \ 701 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \ 702 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include \ 703 -I${JDK_TOPDIR}/src/java.base/share/native/libjava \ 704 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava" 705 706 # The shared libraries are compiled using the picflag. 707 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 708 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 709 710 # Executable flags 711 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 712 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 713 714 AC_SUBST(CFLAGS_JDKLIB) 715 AC_SUBST(CFLAGS_JDKEXE) 716 AC_SUBST(CXXFLAGS_JDKLIB) 717 AC_SUBST(CXXFLAGS_JDKEXE) 718 719 # Flags for compiling test libraries 720 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 721 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 722 723 # Flags for compiling test executables 724 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 725 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 726 727 AC_SUBST(CFLAGS_TESTLIB) 728 AC_SUBST(CFLAGS_TESTEXE) 729 AC_SUBST(CXXFLAGS_TESTLIB) 730 AC_SUBST(CXXFLAGS_TESTEXE) 731 732 # Setup LDFLAGS et al. 733 # 734 735 # Now this is odd. The JDK native libraries have to link against libjvm.so 736 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server. 737 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library 738 # is identical for client and server? Yes. Which is picked at runtime (client or server)? 739 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following 740 # libraries will link to whatever is in memory. Yuck. 741 # 742 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh. 743 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 744 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no" 745 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 746 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh" 747 fi 748 # TODO: make -debug optional "--disable-full-debug-symbols" 749 LDFLAGS_JDK="$LDFLAGS_JDK -debug" 750 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 751 # If this is a --hash-style=gnu system, use --hash-style=both, why? 752 # We have previously set HAS_GNU_HASH if this is the case 753 if test -n "$HAS_GNU_HASH"; then 754 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both" 755 fi 756 if test "x$OPENJDK_TARGET_OS" = xlinux; then 757 # And since we now know that the linker is gnu, then add -z defs, to forbid 758 # undefined symbols in object files. 759 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs" 760 case $DEBUG_LEVEL in 761 release ) 762 # tell linker to optimize libraries. 763 # Should this be supplied to the OSS linker as well? 764 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1" 765 ;; 766 slowdebug ) 767 if test "x$HAS_LINKER_NOW" = "xtrue"; then 768 # do relocations at load 769 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_NOW_FLAG" 770 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_NOW_FLAG" 771 fi 772 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 773 # mark relocations read only 774 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 775 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 776 fi 777 ;; 778 fastdebug ) 779 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 780 # mark relocations read only 781 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 782 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 783 fi 784 ;; 785 * ) 786 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 787 ;; 788 esac 789 fi 790 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 791 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext" 792 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib" 793 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 794 LDFLAGS_JDK="${LDFLAGS_JDK} -brtl -bnolibpath -liconv -bexpall -bernotok" 795 fi 796 797 # Customize LDFLAGS for executables 798 799 LDFLAGS_JDKEXE="${LDFLAGS_JDK}" 800 801 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 802 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 803 LDFLAGS_STACK_SIZE=1048576 804 else 805 LDFLAGS_STACK_SIZE=327680 806 fi 807 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE" 808 elif test "x$OPENJDK_TARGET_OS" = xlinux; then 809 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined" 810 fi 811 812 # Customize LDFLAGS for libs 813 LDFLAGS_JDKLIB="${LDFLAGS_JDK}" 814 815 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 816 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -dll -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base" 817 LDFLAGS_JDKLIB_SUFFIX="" 818 else 819 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS} \ 820 -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}" 821 822 # On some platforms (mac) the linker warns about non existing -L dirs. 823 # Add server first if available. Linking aginst client does not always produce the same results. 824 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1. 825 # Default to server for other variants. 826 if test "x$JVM_VARIANT_SERVER" = xtrue; then 827 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 828 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then 829 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client" 830 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then 831 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal" 832 else 833 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 834 fi 835 836 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm" 837 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 838 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc" 839 fi 840 fi 841 842 AC_SUBST(LDFLAGS_JDKLIB) 843 AC_SUBST(LDFLAGS_JDKEXE) 844 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX) 845 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX) 846 AC_SUBST(LDFLAGS_CXX_JDK) 847 848 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB" 849 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE" 850 LDFLAGS_TESTLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX" 851 LDFLAGS_TESTEXE_SUFFIX="$LDFLAGS_JDKEXE_SUFFIX" 852 853 AC_SUBST(LDFLAGS_TESTLIB) 854 AC_SUBST(LDFLAGS_TESTEXE) 855 AC_SUBST(LDFLAGS_TESTLIB_SUFFIX) 856 AC_SUBST(LDFLAGS_TESTEXE_SUFFIX) 857]) 858 859# FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 860# [RUN-IF-FALSE]) 861# ------------------------------------------------------------ 862# Check that the c and c++ compilers support an argument 863AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS], 864[ 865 AC_MSG_CHECKING([if compiler supports "$1"]) 866 supports=yes 867 868 saved_cflags="$CFLAGS" 869 CFLAGS="$CFLAGS $1" 870 AC_LANG_PUSH([C]) 871 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 872 [supports=no]) 873 AC_LANG_POP([C]) 874 CFLAGS="$saved_cflags" 875 876 saved_cxxflags="$CXXFLAGS" 877 CXXFLAGS="$CXXFLAG $1" 878 AC_LANG_PUSH([C++]) 879 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 880 [supports=no]) 881 AC_LANG_POP([C++]) 882 CXXFLAGS="$saved_cxxflags" 883 884 AC_MSG_RESULT([$supports]) 885 if test "x$supports" = "xyes" ; then 886 m4_ifval([$2], [$2], [:]) 887 else 888 m4_ifval([$3], [$3], [:]) 889 fi 890]) 891 892# FLAGS_LINKER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 893# [RUN-IF-FALSE]) 894# ------------------------------------------------------------ 895# Check that the linker support an argument 896AC_DEFUN([FLAGS_LINKER_CHECK_ARGUMENTS], 897[ 898 AC_MSG_CHECKING([if linker supports "$1"]) 899 supports=yes 900 901 saved_ldflags="$LDFLAGS" 902 LDFLAGS="$LDFLAGS $1" 903 AC_LANG_PUSH([C]) 904 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], 905 [], [supports=no]) 906 AC_LANG_POP([C]) 907 LDFLAGS="$saved_ldflags" 908 909 AC_MSG_RESULT([$supports]) 910 if test "x$supports" = "xyes" ; then 911 m4_ifval([$2], [$2], [:]) 912 else 913 m4_ifval([$3], [$3], [:]) 914 fi 915]) 916 917AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC], 918[ 919 # Some Zero and Shark settings. 920 # ZERO_ARCHFLAG tells the compiler which mode to build for 921 case "${OPENJDK_TARGET_CPU}" in 922 s390) 923 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31" 924 ;; 925 *) 926 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 927 esac 928 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""]) 929 AC_SUBST(ZERO_ARCHFLAG) 930 931 # Check that the compiler supports -mX (or -qX on AIX) flags 932 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 933 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 934 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 935 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 936 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 937 938 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors], 939 [do not consider native warnings to be an error @<:@enabled@:>@])]) 940 941 AC_MSG_CHECKING([if native warnings are errors]) 942 if test "x$enable_warnings_as_errors" = "xyes"; then 943 AC_MSG_RESULT([yes (explicitely set)]) 944 WARNINGS_AS_ERRORS=true 945 elif test "x$enable_warnings_as_errors" = "xno"; then 946 AC_MSG_RESULT([no]) 947 WARNINGS_AS_ERRORS=false 948 elif test "x$enable_warnings_as_errors" = "x"; then 949 AC_MSG_RESULT([yes (default)]) 950 WARNINGS_AS_ERRORS=true 951 else 952 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument]) 953 fi 954 AC_SUBST(WARNINGS_AS_ERRORS) 955 956 case "${TOOLCHAIN_TYPE}" in 957 microsoft) 958 DISABLE_WARNING_PREFIX="-wd" 959 CFLAGS_WARNINGS_ARE_ERRORS="-WX" 960 ;; 961 solstudio) 962 DISABLE_WARNING_PREFIX="-erroff=" 963 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" 964 ;; 965 gcc) 966 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error 967 FLAGS_COMPILER_CHECK_ARGUMENTS([-Wno-this-is-a-warning-that-do-not-exist], 968 [GCC_CAN_DISABLE_WARNINGS=true], 969 [GCC_CAN_DISABLE_WARNINGS=false] 970 ) 971 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then 972 DISABLE_WARNING_PREFIX="-Wno-" 973 else 974 DISABLE_WARNING_PREFIX= 975 fi 976 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 977 ;; 978 clang) 979 DISABLE_WARNING_PREFIX="-Wno-" 980 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 981 ;; 982 esac 983 AC_SUBST(DISABLE_WARNING_PREFIX) 984 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 985]) 986