1# 2# Copyright (c) 2011, 2019, 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################################################################################ 27# 28# Setup flags for C/C++ compiler 29# 30 31############################################################################### 32# 33# How to compile shared libraries. 34# 35AC_DEFUN([FLAGS_SETUP_SHARED_LIBS], 36[ 37 if test "x$TOOLCHAIN_TYPE" = xgcc; then 38 C_FLAG_REORDER='' 39 40 # Default works for linux, might work on other platforms as well. 41 SHARED_LIBRARY_FLAGS='-shared' 42 SET_EXECUTABLE_ORIGIN='-Wl,-z,origin -Wl,-rpath,\$$ORIGIN[$]1' 43 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 44 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 45 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 46 47 elif test "x$TOOLCHAIN_TYPE" = xclang; then 48 C_FLAG_REORDER='' 49 50 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 51 # Linking is different on MacOSX 52 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0" 53 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path$(or [$]1,/.)' 54 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 55 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' 56 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1' 57 58 else 59 # Default works for linux, might work on other platforms as well. 60 SHARED_LIBRARY_FLAGS='-shared' 61 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1' 62 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 63 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 64 65 # arm specific settings 66 if test "x$OPENJDK_TARGET_CPU" = "xarm" && test "x$OPENJDK_TARGET_OS" = xlinux; then 67 # '-Wl,-z,origin' isn't used on arm. 68 SET_SHARED_LIBRARY_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1' 69 else 70 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 71 fi 72 fi 73 74 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 75 C_FLAG_REORDER='-xF' 76 SHARED_LIBRARY_FLAGS="-G" 77 SET_EXECUTABLE_ORIGIN='-R\$$ORIGIN[$]1' 78 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 79 SET_SHARED_LIBRARY_NAME='-h [$]1' 80 SET_SHARED_LIBRARY_MAPFILE='-M[$]1' 81 82 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 83 C_FLAG_REORDER='' 84 SHARED_LIBRARY_FLAGS="-qmkshrobj -bM:SRE -bnoentry" 85 SET_EXECUTABLE_ORIGIN="" 86 SET_SHARED_LIBRARY_ORIGIN='' 87 SET_SHARED_LIBRARY_NAME='' 88 SET_SHARED_LIBRARY_MAPFILE='' 89 90 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 91 C_FLAG_REORDER='' 92 SHARED_LIBRARY_FLAGS="-dll" 93 SET_EXECUTABLE_ORIGIN='' 94 SET_SHARED_LIBRARY_ORIGIN='' 95 SET_SHARED_LIBRARY_NAME='' 96 SET_SHARED_LIBRARY_MAPFILE='-def:[$]1' 97 fi 98 99 AC_SUBST(C_FLAG_REORDER) 100 AC_SUBST(SET_EXECUTABLE_ORIGIN) 101 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) 102 AC_SUBST(SET_SHARED_LIBRARY_NAME) 103 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) 104 AC_SUBST(SHARED_LIBRARY_FLAGS) 105]) 106 107AC_DEFUN([FLAGS_SETUP_DEBUG_SYMBOLS], 108[ 109 # By default don't set any specific assembler debug 110 # info flags for toolchains unless we know they work. 111 # See JDK-8207057. 112 ASFLAGS_DEBUG_SYMBOLS="" 113 # Debug symbols 114 if test "x$TOOLCHAIN_TYPE" = xgcc; then 115 CFLAGS_DEBUG_SYMBOLS="-g" 116 ASFLAGS_DEBUG_SYMBOLS="-g" 117 elif test "x$TOOLCHAIN_TYPE" = xclang; then 118 CFLAGS_DEBUG_SYMBOLS="-g" 119 ASFLAGS_DEBUG_SYMBOLS="-g" 120 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 121 # -g0 enables debug symbols without disabling inlining. 122 CFLAGS_DEBUG_SYMBOLS="-g0 -xs" 123 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 124 CFLAGS_DEBUG_SYMBOLS="-g" 125 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 126 CFLAGS_DEBUG_SYMBOLS="-Z7 -d2Zi+" 127 fi 128 129 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 130 AC_SUBST(ASFLAGS_DEBUG_SYMBOLS) 131]) 132 133AC_DEFUN([FLAGS_SETUP_WARNINGS], 134[ 135 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors], 136 [do not consider native warnings to be an error @<:@enabled@:>@])]) 137 138 # Set default value. 139 if test "x$TOOLCHAIN_TYPE" = xxlc; then 140 WARNINGS_AS_ERRORS=false 141 else 142 WARNINGS_AS_ERRORS=true 143 fi 144 145 AC_MSG_CHECKING([if native warnings are errors]) 146 if test "x$enable_warnings_as_errors" = "xyes"; then 147 AC_MSG_RESULT([yes (explicitly set)]) 148 WARNINGS_AS_ERRORS=true 149 elif test "x$enable_warnings_as_errors" = "xno"; then 150 AC_MSG_RESULT([no (explicitly set)]) 151 WARNINGS_AS_ERRORS=false 152 elif test "x$enable_warnings_as_errors" = "x"; then 153 AC_MSG_RESULT([${WARNINGS_AS_ERRORS} (default)]) 154 else 155 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument]) 156 fi 157 158 AC_SUBST(WARNINGS_AS_ERRORS) 159 160 case "${TOOLCHAIN_TYPE}" in 161 microsoft) 162 DISABLE_WARNING_PREFIX="-wd" 163 CFLAGS_WARNINGS_ARE_ERRORS="-WX" 164 ;; 165 solstudio) 166 DISABLE_WARNING_PREFIX="-erroff=" 167 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" 168 ;; 169 gcc) 170 DISABLE_WARNING_PREFIX="-Wno-" 171 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 172 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" 173 ;; 174 clang) 175 DISABLE_WARNING_PREFIX="-Wno-" 176 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 177 ;; 178 xlc) 179 DISABLE_WARNING_PREFIX="-qsuppress=" 180 CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w" 181 ;; 182 esac 183 AC_SUBST(DISABLE_WARNING_PREFIX) 184 AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX) 185 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 186]) 187 188AC_DEFUN([FLAGS_SETUP_QUALITY_CHECKS], 189[ 190 # bounds, memory and behavior checking options 191 if test "x$TOOLCHAIN_TYPE" = xgcc; then 192 case $DEBUG_LEVEL in 193 release ) 194 # no adjustment 195 ;; 196 fastdebug ) 197 # no adjustment 198 ;; 199 slowdebug ) 200 # FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS/JVM_CFLAGS_SYMBOLS it 201 # get's added conditionally on whether we produce debug symbols or not. 202 # This is most likely not really correct. 203 204 # Add runtime stack smashing and undefined behavior checks. 205 CFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1" 206 CXXFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1" 207 208 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -fstack-protector-all --param ssp-buffer-size=1" 209 ;; 210 esac 211 fi 212 213 # Extra flags needed when building optional static versions of certain 214 # JDK libraries. 215 STATIC_LIBS_CFLAGS="-DSTATIC_BUILD=1" 216 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 217 STATIC_LIBS_CFLAGS="$STATIC_LIBS_CFLAGS -ffunction-sections -fdata-sections" 218 fi 219 if test "x$TOOLCHAIN_TYPE" = xgcc; then 220 # Disable relax-relocation to enable compatibility with older linkers 221 RELAX_RELOCATIONS_FLAG="-Xassembler -mrelax-relocations=no" 222 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${RELAX_RELOCATIONS_FLAG}], 223 IF_TRUE: [STATIC_LIBS_CFLAGS="$STATIC_LIBS_CFLAGS ${RELAX_RELOCATIONS_FLAG}"]) 224 fi 225 AC_SUBST(STATIC_LIBS_CFLAGS) 226]) 227 228AC_DEFUN([FLAGS_SETUP_OPTIMIZATION], 229[ 230 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 231 CC_HIGHEST="-fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 232 233 C_O_FLAG_HIGHEST_JVM="-xO4" 234 C_O_FLAG_DEBUG_JVM="" 235 C_O_FLAG_SIZE="" 236 C_O_FLAG_DEBUG="" 237 C_O_FLAG_NONE="" 238 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 239 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST" 240 C_O_FLAG_HI="-xO4 -Wu,-O4~yz" 241 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz" 242 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 243 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 \ 244 -xprefetch=auto,explicit $CC_HIGHEST" 245 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 246 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 247 fi 248 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 249 C_O_FLAG_HIGHEST_JVM="-O3" 250 C_O_FLAG_HIGHEST="-O3" 251 C_O_FLAG_HI="-O3" 252 C_O_FLAG_NORM="-O2" 253 C_O_FLAG_SIZE="-Os" 254 C_O_FLAG_DEBUG="-O0" 255 C_O_FLAG_DEBUG_JVM="-O0" 256 C_O_FLAG_NONE="-O0" 257 elif test "x$TOOLCHAIN_TYPE" = xclang; then 258 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 259 # On MacOSX we optimize for size, something 260 # we should do for all platforms? 261 C_O_FLAG_HIGHEST_JVM="-Os" 262 C_O_FLAG_HIGHEST="-Os" 263 C_O_FLAG_HI="-Os" 264 C_O_FLAG_NORM="-Os" 265 C_O_FLAG_DEBUG_JVM="" 266 else 267 C_O_FLAG_HIGHEST_JVM="-O3" 268 C_O_FLAG_HIGHEST="-O3" 269 C_O_FLAG_HI="-O3" 270 C_O_FLAG_NORM="-O2" 271 C_O_FLAG_DEBUG_JVM="-O0" 272 fi 273 C_O_FLAG_SIZE="-Os" 274 C_O_FLAG_DEBUG="-O0" 275 C_O_FLAG_NONE="-O0" 276 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 277 C_O_FLAG_HIGHEST_JVM="-O3 -qhot=level=1 -qinline -qinlglue" 278 C_O_FLAG_HIGHEST="-O3 -qhot=level=1 -qinline -qinlglue" 279 C_O_FLAG_HI="-O3 -qinline -qinlglue" 280 C_O_FLAG_NORM="-O2" 281 C_O_FLAG_DEBUG="-qnoopt" 282 # FIXME: Value below not verified. 283 C_O_FLAG_DEBUG_JVM="" 284 C_O_FLAG_NONE="-qnoopt" 285 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 286 C_O_FLAG_HIGHEST_JVM="-O2 -Oy-" 287 C_O_FLAG_HIGHEST="-O2" 288 C_O_FLAG_HI="-O1" 289 C_O_FLAG_NORM="-O1" 290 C_O_FLAG_DEBUG="-Od" 291 C_O_FLAG_DEBUG_JVM="" 292 C_O_FLAG_NONE="-Od" 293 C_O_FLAG_SIZE="-Os" 294 fi 295 296 # Now copy to C++ flags 297 CXX_O_FLAG_HIGHEST_JVM="$C_O_FLAG_HIGHEST_JVM" 298 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 299 CXX_O_FLAG_HI="$C_O_FLAG_HI" 300 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 301 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" 302 CXX_O_FLAG_DEBUG_JVM="$C_O_FLAG_DEBUG_JVM" 303 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 304 CXX_O_FLAG_SIZE="$C_O_FLAG_SIZE" 305 306 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 307 # In solstudio, also add this to C (but not C++) flags... 308 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xalias_level=basic" 309 fi 310 311 # Adjust optimization flags according to debug level. 312 case $DEBUG_LEVEL in 313 release ) 314 # no adjustment 315 ;; 316 fastdebug ) 317 # Not quite so much optimization 318 C_O_FLAG_HI="$C_O_FLAG_NORM" 319 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 320 ;; 321 slowdebug ) 322 # Disable optimization 323 C_O_FLAG_HIGHEST_JVM="$C_O_FLAG_DEBUG_JVM" 324 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" 325 C_O_FLAG_HI="$C_O_FLAG_DEBUG" 326 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" 327 C_O_FLAG_SIZE="$C_O_FLAG_DEBUG" 328 CXX_O_FLAG_HIGHEST_JVM="$CXX_O_FLAG_DEBUG_JVM" 329 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" 330 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" 331 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" 332 CXX_O_FLAG_SIZE="$CXX_O_FLAG_DEBUG" 333 ;; 334 esac 335 336 AC_SUBST(C_O_FLAG_HIGHEST_JVM) 337 AC_SUBST(C_O_FLAG_HIGHEST) 338 AC_SUBST(C_O_FLAG_HI) 339 AC_SUBST(C_O_FLAG_NORM) 340 AC_SUBST(C_O_FLAG_NONE) 341 AC_SUBST(C_O_FLAG_SIZE) 342 AC_SUBST(CXX_O_FLAG_HIGHEST_JVM) 343 AC_SUBST(CXX_O_FLAG_HIGHEST) 344 AC_SUBST(CXX_O_FLAG_HI) 345 AC_SUBST(CXX_O_FLAG_NORM) 346 AC_SUBST(CXX_O_FLAG_NONE) 347 AC_SUBST(CXX_O_FLAG_SIZE) 348]) 349 350AC_DEFUN([FLAGS_SETUP_CFLAGS], 351[ 352 ### CFLAGS 353 354 FLAGS_SETUP_CFLAGS_HELPER 355 356 FLAGS_OS=$OPENJDK_TARGET_OS 357 FLAGS_OS_TYPE=$OPENJDK_TARGET_OS_TYPE 358 FLAGS_CPU=$OPENJDK_TARGET_CPU 359 FLAGS_CPU_ARCH=$OPENJDK_TARGET_CPU_ARCH 360 FLAGS_CPU_BITS=$OPENJDK_TARGET_CPU_BITS 361 FLAGS_CPU_ENDIAN=$OPENJDK_TARGET_CPU_ENDIAN 362 FLAGS_CPU_LEGACY=$OPENJDK_TARGET_CPU_LEGACY 363 FLAGS_CPU_LEGACY_LIB=$OPENJDK_TARGET_CPU_LEGACY_LIB 364 365 FLAGS_SETUP_CFLAGS_CPU_DEP([TARGET]) 366 367 # Repeat the check for the BUILD_CC and BUILD_CXX. Need to also reset CFLAGS 368 # since any target specific flags will likely not work with the build compiler. 369 CC_OLD="$CC" 370 CXX_OLD="$CXX" 371 CFLAGS_OLD="$CFLAGS" 372 CXXFLAGS_OLD="$CXXFLAGS" 373 CC="$BUILD_CC" 374 CXX="$BUILD_CXX" 375 CFLAGS="" 376 CXXFLAGS="" 377 378 FLAGS_OS=$OPENJDK_BUILD_OS 379 FLAGS_OS_TYPE=$OPENJDK_BUILD_OS_TYPE 380 FLAGS_CPU=$OPENJDK_BUILD_CPU 381 FLAGS_CPU_ARCH=$OPENJDK_BUILD_CPU_ARCH 382 FLAGS_CPU_BITS=$OPENJDK_BUILD_CPU_BITS 383 FLAGS_CPU_ENDIAN=$OPENJDK_BUILD_CPU_ENDIAN 384 FLAGS_CPU_LEGACY=$OPENJDK_BUILD_CPU_LEGACY 385 FLAGS_CPU_LEGACY_LIB=$OPENJDK_BUILD_CPU_LEGACY_LIB 386 387 FLAGS_SETUP_CFLAGS_CPU_DEP([BUILD], [OPENJDK_BUILD_], [BUILD_]) 388 389 CC="$CC_OLD" 390 CXX="$CXX_OLD" 391 CFLAGS="$CFLAGS_OLD" 392 CXXFLAGS="$CXXFLAGS_OLD" 393 394 # Tests are only ever compiled for TARGET 395 CFLAGS_TESTLIB="$CFLAGS_JDKLIB" 396 CXXFLAGS_TESTLIB="$CXXFLAGS_JDKLIB" 397 CFLAGS_TESTEXE="$CFLAGS_JDKEXE" 398 CXXFLAGS_TESTEXE="$CXXFLAGS_JDKEXE" 399 400 AC_SUBST(CFLAGS_TESTLIB) 401 AC_SUBST(CFLAGS_TESTEXE) 402 AC_SUBST(CXXFLAGS_TESTLIB) 403 AC_SUBST(CXXFLAGS_TESTEXE) 404]) 405 406################################################################################ 407# platform independent 408AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER], 409[ 410 #### OS DEFINES, these should be independent on toolchain 411 if test "x$OPENJDK_TARGET_OS" = xlinux; then 412 CFLAGS_OS_DEF_JVM="-DLINUX" 413 CFLAGS_OS_DEF_JDK="-D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 414 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then 415 CFLAGS_OS_DEF_JVM="-DSOLARIS" 416 CFLAGS_OS_DEF_JDK="-D__solaris__" 417 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 418 CFLAGS_OS_DEF_JVM="-D_ALLBSD_SOURCE -D_DARWIN_C_SOURCE -D_XOPEN_SOURCE" 419 CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 420 elif test "x$OPENJDK_TARGET_OS" = xaix; then 421 CFLAGS_OS_DEF_JVM="-DAIX" 422 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 423 CFLAGS_OS_DEF_JVM="-D_ALLBSD_SOURCE -D_BSDONLY_SOURCE" 424 CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE -D_BSDONLY_SOURCE -D_REENTRANT" 425 elif test "x$OPENJDK_TARGET_OS" = xwindows; then 426 CFLAGS_OS_DEF_JVM="-D_WINDOWS -DWIN32 -D_JNI_IMPLEMENTATION_" 427 fi 428 429 CFLAGS_OS_DEF_JDK="$CFLAGS_OS_DEF_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 430 431 #### GLOBAL DEFINES 432 # Set some common defines. These works for all compilers, but assume 433 # -D is universally accepted. 434 435 # Always enable optional macros for VM. 436 ALWAYS_CFLAGS_JVM="-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS" 437 438 # Setup some hard coded includes 439 ALWAYS_CFLAGS_JDK=" \ 440 -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base \ 441 -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base/\$(OPENJDK_TARGET_OS_INCLUDE_SUBDIR) \ 442 -I${TOPDIR}/src/java.base/share/native/libjava \ 443 -I${TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava \ 444 -I${TOPDIR}/src/hotspot/share/include \ 445 -I${TOPDIR}/src/hotspot/os/${HOTSPOT_TARGET_OS_TYPE}/include" 446 447 ############################################################################### 448 449 # Adjust flags according to debug level. 450 # Setup debug/release defines 451 if test "x$DEBUG_LEVEL" = xrelease; then 452 DEBUG_CFLAGS_JDK="-DNDEBUG" 453 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 454 DEBUG_CFLAGS_JDK="$DEBUG_CFLAGS_JDK -DTRIMMED" 455 fi 456 else 457 DEBUG_CFLAGS_JDK="-DDEBUG" 458 459 if test "x$TOOLCHAIN_TYPE" = xxlc; then 460 # We need '-qminimaltoc' or '-qpic=large -bbigtoc' if the TOC overflows. 461 # Hotspot now overflows its 64K TOC (currently only for debug), 462 # so for debug we build with '-qpic=large -bbigtoc'. 463 DEBUG_CFLAGS_JVM="-qpic=large" 464 fi 465 fi 466 467 if test "x$DEBUG_LEVEL" != xrelease; then 468 DEBUG_OPTIONS_FLAGS_JDK="$CFLAGS_DEBUG_OPTIONS" 469 DEBUG_SYMBOLS_CFLAGS_JDK="$CFLAGS_DEBUG_SYMBOLS" 470 fi 471 472 #### TOOLCHAIN DEFINES 473 474 if test "x$TOOLCHAIN_TYPE" = xgcc; then 475 ALWAYS_DEFINES_JVM="-D_GNU_SOURCE -D_REENTRANT" 476 elif test "x$TOOLCHAIN_TYPE" = xclang; then 477 ALWAYS_DEFINES_JVM="-D_GNU_SOURCE" 478 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 479 ALWAYS_DEFINES_JVM="-DSPARC_WORKS -D_Crun_inline_placement" 480 ALWAYS_DEFINES_JDK="-DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 481 ALWAYS_DEFINES_JDK_CXXONLY="-DCC_NOEX" 482 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 483 ALWAYS_DEFINES_JVM="-D_REENTRANT" 484 ALWAYS_DEFINES_JDK="-D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 485 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 486 ALWAYS_DEFINES_JDK="-DWIN32_LEAN_AND_MEAN -D_CRT_SECURE_NO_DEPRECATE \ 487 -D_CRT_NONSTDC_NO_DEPRECATE -DWIN32 -DIAL" 488 ALWAYS_DEFINES_JVM="-DNOMINMAX -DWIN32_LEAN_AND_MEAN" 489 fi 490 491 ############################################################################### 492 # 493 # 494 # CFLAGS BASIC 495 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 496 # COMMON to gcc and clang 497 TOOLCHAIN_CFLAGS_JVM="-pipe -fno-rtti -fno-exceptions \ 498 -fvisibility=hidden -fno-strict-aliasing -fno-omit-frame-pointer" 499 fi 500 501 if test "x$TOOLCHAIN_TYPE" = xgcc; then 502 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -fcheck-new -fstack-protector" 503 TOOLCHAIN_CFLAGS_JDK="-pipe -fstack-protector" 504 # reduce lib size on s390x in link step, this needs also special compile flags 505 if test "x$OPENJDK_TARGET_CPU" = xs390x; then 506 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -ffunction-sections -fdata-sections" 507 TOOLCHAIN_CFLAGS_JDK="$TOOLCHAIN_CFLAGS_JDK -ffunction-sections -fdata-sections" 508 fi 509 # technically NOT for CXX (but since this gives *worse* performance, use 510 # no-strict-aliasing everywhere!) 511 TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" 512 513 elif test "x$TOOLCHAIN_TYPE" = xclang; then 514 # Restrict the debug information created by Clang to avoid 515 # too big object files and speed the build up a little bit 516 # (see http://llvm.org/bugs/show_bug.cgi?id=7554) 517 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -flimit-debug-info" 518 519 # In principle the stack alignment below is cpu- and ABI-dependent and 520 # should agree with values of StackAlignmentInBytes in various 521 # src/hotspot/cpu/*/globalDefinitions_*.hpp files, but this value currently 522 # works for all platforms. 523 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -mno-omit-leaf-frame-pointer -mstack-alignment=16" 524 525 if test "x$OPENJDK_TARGET_CPU" = xx86; then 526 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -mstackrealign" 527 fi 528 529 if test "x$OPENJDK_TARGET_OS" = xlinux; then 530 TOOLCHAIN_CFLAGS_JDK="-pipe" 531 TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" # technically NOT for CXX 532 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 533 TOOLCHAIN_CFLAGS_JDK="-pipe" 534 TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" # technically NOT for CXX 535 536 CXXSTD_CXXFLAG="-std=gnu++98" 537 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$CXXSTD_CXXFLAG -Werror], 538 IF_FALSE: [CXXSTD_CXXFLAG=""]) 539 TOOLCHAIN_CFLAGS_JDK_CXXONLY="$CXXSTD_CXXFLAG" 540 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM $CXXSTD_CXXFLAG" 541 ADLC_CXXFLAG="$CXXSTD_CXXFLAG" 542 fi 543 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 544 TOOLCHAIN_CFLAGS_JDK="-mt" 545 TOOLCHAIN_CFLAGS_JDK_CONLY="-xCC -Xa -v -W0,-noglobal" # C only 546 TOOLCHAIN_CFLAGS_JDK_CXXONLY="-features=no%except -norunpath -xnolib" # CXX only 547 TOOLCHAIN_CFLAGS_JVM="-template=no%extdef -features=no%split_init \ 548 -library=stlport4 -mt -features=no%except" 549 if test "x$DEBUG_LEVEL" = xslowdebug; then 550 # Previously -g was used instead of -g0 for slowdebug; this is equivalent 551 # to setting +d. 552 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM +d" 553 fi 554 555 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 556 TOOLCHAIN_CFLAGS_JDK="-qchars=signed -qfullpath -qsaveopt" # add on both CFLAGS 557 TOOLCHAIN_CFLAGS_JVM="-qtune=balanced \ 558 -qalias=noansi -qstrict -qtls=default -qlanglvl=c99vla \ 559 -qlanglvl=noredefmac -qnortti -qnoeh -qignerrno" 560 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 561 TOOLCHAIN_CFLAGS_JVM="-nologo -MD -MP" 562 TOOLCHAIN_CFLAGS_JDK="-nologo -MD -Zc:wchar_t-" 563 fi 564 565 # CFLAGS WARNINGS STUFF 566 # Set JVM_CFLAGS warning handling 567 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 568 # COMMON to gcc and clang 569 WARNING_CFLAGS_JVM="-Wpointer-arith -Wsign-compare -Wunused-function" 570 if ! HOTSPOT_CHECK_JVM_VARIANT(zero); then 571 # Non-zero builds have stricter warnings 572 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wundef -Wformat=2" 573 fi 574 575 fi 576 if test "x$TOOLCHAIN_TYPE" = xgcc; then 577 WARNING_CFLAGS_JDK="-Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2" 578 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wunused-value -Woverloaded-virtual" 579 580 if ! HOTSPOT_CHECK_JVM_VARIANT(zero); then 581 # Non-zero builds have stricter warnings 582 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wreturn-type" 583 fi 584 elif test "x$TOOLCHAIN_TYPE" = xclang; then 585 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wno-deprecated" 586 if test "x$OPENJDK_TARGET_OS" = xlinux || test "x$OPENJDK_TARGET_OS" = xbsd; then 587 WARNING_CFLAGS_JVM="$WARNING_CFLAGS_JVM -Wno-sometimes-uninitialized" 588 WARNING_CFLAGS_JDK="-Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2" 589 fi 590 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 591 WARNING_CFLAGS_JDK_CONLY="-errshort=tags" 592 WARNING_CFLAGS_JDK_CXXONLY="+w" 593 WARNING_CFLAGS_JDK="-errtags=yes -errfmt" 594 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 595 WARNING_CFLAGS="-W3" 596 WARNING_CFLAGS_JDK="-wd4800" 597 WARNING_CFLAGS_JVM="-wd4800" 598 fi 599 600 # Set some additional per-OS defines. 601 602 # Additional macosx handling 603 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 604 OS_CFLAGS="-DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \ 605 -mmacosx-version-min=$MACOSX_VERSION_MIN" 606 607 if test -n "$MACOSX_VERSION_MAX"; then 608 OS_CFLAGS="$OS_CFLAGS \ 609 -DMAC_OS_X_VERSION_MAX_ALLOWED=$MACOSX_VERSION_MAX_NODOTS" 610 fi 611 fi 612 613 # Where does this really belong?? 614 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 615 PICFLAG="-fPIC" 616 PIEFLAG="-fPIE" 617 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 618 PICFLAG="-KPIC" 619 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 620 # '-qpic' defaults to 'qpic=small'. This means that the compiler generates only 621 # one instruction for accessing the TOC. If the TOC grows larger than 64K, the linker 622 # will have to patch this single instruction with a call to some out-of-order code which 623 # does the load from the TOC. This is of course slower, and we also would have 624 # to use '-bbigtoc' for linking anyway so we could also change the PICFLAG to 'qpic=large'. 625 # With 'qpic=large' the compiler will by default generate a two-instruction sequence which 626 # can be patched directly by the linker and does not require a jump to out-of-order code. 627 # 628 # Since large TOC causes perf. overhead, only pay it where we must. Currently this is 629 # for all libjvm variants (both gtest and normal) but no other binaries. So, build 630 # libjvm with -qpic=large and link with -bbigtoc. 631 JVM_PICFLAG="-qpic=large" 632 JDK_PICFLAG="-qpic" 633 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 634 PICFLAG="" 635 fi 636 637 if test "x$TOOLCHAIN_TYPE" != xxlc; then 638 JVM_PICFLAG="$PICFLAG" 639 JDK_PICFLAG="$PICFLAG" 640 fi 641 642 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 643 # Linking is different on MacOSX 644 JDK_PICFLAG='' 645 if test "x$STATIC_BUILD" = xtrue; then 646 JVM_PICFLAG="" 647 fi 648 fi 649 650 # Optional POSIX functionality needed by the JVM 651 # 652 # Check if clock_gettime is available and in which library. This indicates 653 # availability of CLOCK_MONOTONIC for hotspot. But we don't need to link, so 654 # don't let it update LIBS. 655 save_LIBS="$LIBS" 656 AC_SEARCH_LIBS(clock_gettime, rt, [HAS_CLOCK_GETTIME=true], []) 657 if test "x$LIBS" = "x-lrt "; then 658 CLOCK_GETTIME_IN_LIBRT=true 659 fi 660 LIBS="$save_LIBS" 661 662 if test "x$HAS_CLOCK_GETTIME" = "xtrue"; then 663 OS_CFLAGS_JVM="$OS_CFLAGS_JVM -DSUPPORTS_CLOCK_MONOTONIC" 664 if test "x$CLOCK_GETTIME_IN_LIBRT" = "xtrue"; then 665 OS_CFLAGS_JVM="$OS_CFLAGS_JVM -DNEEDS_LIBRT" 666 fi 667 fi 668]) 669 670################################################################################ 671# $1 - Either BUILD or TARGET to pick the correct OS/CPU variables to check 672# conditionals against. 673# $2 - Optional prefix for each variable defined. 674# $3 - Optional prefix for compiler variables (either BUILD_ or nothing). 675AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP], 676[ 677 #### CPU DEFINES, these should (in theory) be independent on toolchain 678 679 # Setup target CPU 680 # Setup endianness 681 if test "x$FLAGS_CPU_ENDIAN" = xlittle; then 682 $1_DEFINES_CPU_JVM="-DVM_LITTLE_ENDIAN" 683 fi 684 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 685 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 686 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 687 if test "x$FLAGS_CPU_ENDIAN" = xlittle; then 688 $1_DEFINES_CPU_JDK="-D_LITTLE_ENDIAN=" 689 else 690 $1_DEFINES_CPU_JDK="-D_BIG_ENDIAN=" 691 fi 692 else 693 if test "x$FLAGS_CPU_ENDIAN" = xlittle; then 694 $1_DEFINES_CPU_JDK="-D_LITTLE_ENDIAN" 695 else 696 $1_DEFINES_CPU_JDK="-D_BIG_ENDIAN" 697 fi 698 fi 699 700 # setup CPU bit size 701 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DARCH='\"$FLAGS_CPU_LEGACY\"' \ 702 -D$FLAGS_CPU_LEGACY" 703 704 if test "x$FLAGS_CPU_BITS" = x64; then 705 # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in 706 # unpack200.exe. 707 if test "x$FLAGS_OS" = xlinux || test "x$FLAGS_OS" = xmacosx || test "x$FLAGS_OS" = xbsd; then 708 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_LP64=1" 709 fi 710 if test "x$FLAGS_OS" != xsolaris && test "x$FLAGS_OS" != xaix; then 711 # Solaris does not have _LP64=1 in the old build. 712 # xlc on AIX defines _LP64=1 by default and issues a warning if we redefine it. 713 $1_DEFINES_CPU_JVM="${$1_DEFINES_CPU_JVM} -D_LP64=1" 714 fi 715 fi 716 717 # toolchain dependend, per-cpu 718 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 719 if test "x$FLAGS_CPU_ARCH" = xx86; then 720 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DcpuIntel -Di586 -D$FLAGS_CPU_LEGACY_LIB" 721 fi 722 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 723 if test "x$FLAGS_CPU" = xx86_64; then 724 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_AMD64_ -Damd64" 725 else 726 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_X86_ -Dx86" 727 fi 728 fi 729 730 # CFLAGS PER CPU 731 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 732 # COMMON to gcc and clang 733 AC_MSG_CHECKING([if $1 is x86]) 734 if test "x$FLAGS_CPU" = xx86; then 735 AC_MSG_RESULT([yes]) 736 AC_MSG_CHECKING([if control flow protection is enabled by additional compiler flags]) 737 if echo "${EXTRA_CFLAGS}${EXTRA_CXXFLAGS}${EXTRA_ASFLAGS}" | ${GREP} -q 'fcf-protection' ; then 738 # cf-protection requires CMOV and thus i686 739 $1_CFLAGS_CPU="-march=i686" 740 AC_MSG_RESULT([yes, forcing ${$1_CFLAGS_CPU}]) 741 else 742 # Force compatibility with i586 on 32 bit intel platforms. 743 $1_CFLAGS_CPU="-march=i586" 744 AC_MSG_RESULT([no, forcing ${$1_CFLAGS_CPU}]) 745 fi 746 else 747 AC_MSG_RESULT([no]) 748 fi 749 fi 750 751 if test "x$TOOLCHAIN_TYPE" = xclang; then 752 if test "x$FLAGS_CPU" = xarm; then 753 $1_CFLAGS_CPU="-fsigned-char $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS -DJDK_ARCH_ABI_PROP_NAME='\"\$(JDK_ARCH_ABI_PROP_NAME)\"'" 754 $1_CFLAGS_CPU_JVM="-DARM" 755 fi 756 fi 757 758 if test "x$TOOLCHAIN_TYPE" = xgcc; then 759 if test "x$FLAGS_CPU" = xarm; then 760 # -Wno-psabi to get rid of annoying "note: the mangling of 'va_list' has changed in GCC 4.4" 761 $1_CFLAGS_CPU="-fsigned-char -Wno-psabi $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS -DJDK_ARCH_ABI_PROP_NAME='\"\$(JDK_ARCH_ABI_PROP_NAME)\"'" 762 $1_CFLAGS_CPU_JVM="-DARM" 763 elif test "x$FLAGS_CPU" = xaarch64; then 764 if test "x$HOTSPOT_TARGET_CPU_PORT" = xarm64; then 765 $1_CFLAGS_CPU_JVM="-fsigned-char -DARM" 766 fi 767 elif test "x$FLAGS_CPU_ARCH" = xppc; then 768 $1_CFLAGS_CPU_JVM="-minsert-sched-nops=regroup_exact -mno-multiple -mno-string" 769 if test "x$FLAGS_CPU" = xppc64; then 770 # -mminimal-toc fixes `relocation truncated to fit' error for gcc 4.1. 771 # Use ppc64 instructions, but schedule for power5 772 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -mminimal-toc -mcpu=powerpc64 -mtune=power5" 773 elif test "x$FLAGS_CPU" = xppc64le; then 774 # Little endian machine uses ELFv2 ABI. 775 # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI. 776 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power8" 777 fi 778 elif test "x$FLAGS_CPU" = xs390x; then 779 $1_CFLAGS_CPU="-mbackchain -march=z10" 780 fi 781 782 if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then 783 # for all archs except arm and ppc, prevent gcc to omit frame pointer 784 $1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer" 785 fi 786 787 $1_CXXSTD_CXXFLAG="-std=gnu++98" 788 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${$1_CXXSTD_CXXFLAG} -Werror], 789 PREFIX: $3, IF_FALSE: [$1_CXXSTD_CXXFLAG=""]) 790 $1_TOOLCHAIN_CFLAGS_JDK_CXXONLY="${$1_CXXSTD_CXXFLAG}" 791 $1_TOOLCHAIN_CFLAGS_JVM="${$1_TOOLCHAIN_CFLAGS_JVM} ${$1_CXXSTD_CXXFLAG}" 792 $2ADLC_CXXFLAG="${$1_CXXSTD_CXXFLAG}" 793 794 elif test "x$TOOLCHAIN_TYPE" = xclang; then 795 if test "x$FLAGS_OS" = xlinux; then 796 # ppc test not really needed for clang 797 if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then 798 # for all archs except arm and ppc, prevent gcc to omit frame pointer 799 $1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer" 800 fi 801 elif test "x$OPENJDK_TARGET_OS_ENV" = xbsd.freebsd; then 802 if test "x$FLAGS_CPU" = xppc64; then 803 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=powerpc64 -mtune=power5" 804 elif test "x$FLAGS_CPU" = xppc64le; then 805 # Little endian machine uses ELFv2 ABI. 806 # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI. 807 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power8" 808 fi 809 fi 810 811 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 812 if test "x$FLAGS_CPU" = xx86_64; then 813 # NOTE: -xregs=no%frameptr is supposed to be default on x64 814 $1_CFLAGS_CPU_JDK="-xregs=no%frameptr" 815 elif test "x$FLAGS_CPU" = xsparcv9; then 816 $1_CFLAGS_CPU_JVM="-xarch=sparc" 817 $1_CFLAGS_CPU_JDK_LIBONLY="-xregs=no%appl" 818 fi 819 820 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 821 if test "x$FLAGS_CPU" = xppc64; then 822 $1_CFLAGS_CPU_JVM="-qarch=ppc64" 823 fi 824 825 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 826 if test "x$FLAGS_CPU" = xx86; then 827 $1_CFLAGS_CPU_JVM="-arch:IA32" 828 elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then 829 if test "x$DEBUG_LEVEL" != xrelease; then 830 # NOTE: This is probably redundant; -homeparams is default on 831 # non-release builds. 832 $1_CFLAGS_CPU_JVM="-homeparams" 833 fi 834 fi 835 fi 836 837 if test "x$TOOLCHAIN_TYPE" = xgcc; then 838 FLAGS_SETUP_GCC6_COMPILER_FLAGS($1, $3) 839 $1_TOOLCHAIN_CFLAGS="${$1_GCC6_CFLAGS}" 840 841 $1_WARNING_CFLAGS_JVM="-Wno-format-zero-length -Wtype-limits -Wuninitialized" 842 fi 843 844 # Prevent the __FILE__ macro from generating absolute paths into the built 845 # binaries. Depending on toolchain, different mitigations are possible. 846 # * GCC and Clang of new enough versions have -fmacro-prefix-map. 847 # * For most other toolchains, supplying all source files and -I flags as 848 # relative paths fixes the issue. 849 FILE_MACRO_CFLAGS= 850 if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then 851 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 852 # Check if compiler supports -fmacro-prefix-map. If so, use that to make 853 # the __FILE__ macro resolve to paths relative to the workspace root. 854 workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/" 855 FILE_MACRO_CFLAGS="-fmacro-prefix-map=${workspace_root_trailing_slash}=" 856 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${FILE_MACRO_CFLAGS}], 857 PREFIX: $3, 858 IF_FALSE: [ 859 FILE_MACRO_CFLAGS= 860 ] 861 ) 862 fi 863 fi 864 AC_SUBST(FILE_MACRO_CFLAGS) 865 866 # EXPORT to API 867 CFLAGS_JVM_COMMON="$ALWAYS_CFLAGS_JVM $ALWAYS_DEFINES_JVM \ 868 $TOOLCHAIN_CFLAGS_JVM ${$1_TOOLCHAIN_CFLAGS_JVM} \ 869 $OS_CFLAGS $OS_CFLAGS_JVM $CFLAGS_OS_DEF_JVM $DEBUG_CFLAGS_JVM \ 870 $WARNING_CFLAGS $WARNING_CFLAGS_JVM $JVM_PICFLAG $FILE_MACRO_CFLAGS" 871 872 CFLAGS_JDK_COMMON="$ALWAYS_CFLAGS_JDK $ALWAYS_DEFINES_JDK $TOOLCHAIN_CFLAGS_JDK \ 873 $OS_CFLAGS $CFLAGS_OS_DEF_JDK $DEBUG_CFLAGS_JDK $DEBUG_OPTIONS_FLAGS_JDK \ 874 $WARNING_CFLAGS $WARNING_CFLAGS_JDK $DEBUG_SYMBOLS_CFLAGS_JDK \ 875 $FILE_MACRO_CFLAGS" 876 877 # Use ${$2EXTRA_CFLAGS} to block EXTRA_CFLAGS to be added to build flags. 878 # (Currently we don't have any OPENJDK_BUILD_EXTRA_CFLAGS, but that might 879 # change in the future.) 880 881 CFLAGS_JDK_COMMON_CONLY="$TOOLCHAIN_CFLAGS_JDK_CONLY \ 882 $WARNING_CFLAGS_JDK_CONLY ${$2EXTRA_CFLAGS}" 883 CFLAGS_JDK_COMMON_CXXONLY="$ALWAYS_DEFINES_JDK_CXXONLY \ 884 $TOOLCHAIN_CFLAGS_JDK_CXXONLY \ 885 ${$1_TOOLCHAIN_CFLAGS_JDK_CXXONLY} \ 886 $WARNING_CFLAGS_JDK_CXXONLY ${$2EXTRA_CXXFLAGS}" 887 888 $1_CFLAGS_JVM="${$1_DEFINES_CPU_JVM} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JVM} ${$1_TOOLCHAIN_CFLAGS} ${$1_WARNING_CFLAGS_JVM}" 889 $1_CFLAGS_JDK="${$1_DEFINES_CPU_JDK} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JDK} ${$1_TOOLCHAIN_CFLAGS}" 890 891 $2JVM_CFLAGS="$CFLAGS_JVM_COMMON ${$1_CFLAGS_JVM} ${$2EXTRA_CXXFLAGS}" 892 893 $2CFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CONLY ${$1_CFLAGS_JDK} $PIEFLAG" 894 $2CXXFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CXXONLY ${$1_CFLAGS_JDK} $PIEFLAG" 895 $2CFLAGS_JDKLIB="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CONLY ${$1_CFLAGS_JDK} \ 896 $JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}" 897 $2CXXFLAGS_JDKLIB="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CXXONLY ${$1_CFLAGS_JDK} \ 898 $JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}" 899 900 AC_SUBST($2JVM_CFLAGS) 901 AC_SUBST($2CFLAGS_JDKLIB) 902 AC_SUBST($2CFLAGS_JDKEXE) 903 AC_SUBST($2CXXFLAGS_JDKLIB) 904 AC_SUBST($2CXXFLAGS_JDKEXE) 905 AC_SUBST($2ADLC_CXXFLAG) 906 907 COMPILER_FP_CONTRACT_OFF_FLAG="-ffp-contract=off" 908 # Check that the compiler supports -ffp-contract=off flag 909 # Set FDLIBM_CFLAGS to -ffp-contract=off if it does. Empty 910 # otherwise. 911 # These flags are required for GCC-based builds of 912 # fdlibm with optimization without losing precision. 913 # Notably, -ffp-contract=off needs to be added for GCC >= 4.6. 914 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 915 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_FP_CONTRACT_OFF_FLAG}], 916 PREFIX: $3, 917 IF_TRUE: [$2FDLIBM_CFLAGS=${COMPILER_FP_CONTRACT_OFF_FLAG}], 918 IF_FALSE: [$2FDLIBM_CFLAGS=""]) 919 fi 920 AC_SUBST($2FDLIBM_CFLAGS) 921]) 922 923# FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX]) 924# Arguments: 925# $1 - Prefix for each variable defined. 926# $2 - Prefix for compiler variables (either BUILD_ or nothing). 927AC_DEFUN([FLAGS_SETUP_GCC6_COMPILER_FLAGS], 928[ 929 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code 930 # runs afoul of the more aggressive versions of these optimisations. 931 # Notably, value range propagation now assumes that the this pointer of C++ 932 # member functions is non-null. 933 NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks" 934 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror], 935 PREFIX: $2, IF_FALSE: [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""]) 936 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse" 937 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror], 938 PREFIX: $2, IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""]) 939 $1_GCC6_CFLAGS="${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}" 940]) 941 942# Documentation on common flags used for solstudio in HIGHEST. 943# 944# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be 945# done with care, there are some assumptions below that need to 946# be understood about the use of pointers, and IEEE behavior. 947# 948# -fns: Use non-standard floating point mode (not IEEE 754) 949# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) 950# -fsingle: Use single precision floating point with 'float' 951# -xalias_level=basic: Assume memory references via basic pointer types do not alias 952# (Source with excessing pointer casting and data access with mixed 953# pointer types are not recommended) 954# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions 955# (If you expect perfect errno behavior, do not use this) 956# -xdepend: Loop data dependency optimizations (need -xO3 or higher) 957# -xrestrict: Pointer parameters to functions do not overlap 958# (Similar to -xalias_level=basic usage, but less obvious sometimes. 959# If you pass in multiple pointers to the same data, do not use this) 960# -xlibmil: Inline some library routines 961# (If you expect perfect errno behavior, do not use this) 962# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) 963# (If you expect perfect errno behavior, do not use this) 964# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now 965