1# 2# Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved. 3# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4# 5# This code is free software; you can redistribute it and/or modify it 6# under the terms of the GNU General Public License version 2 only, as 7# published by the Free Software Foundation. Oracle designates this 8# particular file as subject to the "Classpath" exception as provided 9# by Oracle in the LICENSE file that accompanied this code. 10# 11# This code is distributed in the hope that it will be useful, but WITHOUT 12# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14# version 2 for more details (a copy is included in the LICENSE file that 15# accompanied this code). 16# 17# You should have received a copy of the GNU General Public License version 18# 2 along with this work; if not, write to the Free Software Foundation, 19# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20# 21# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22# or visit www.oracle.com if you need additional information or have any 23# questions. 24# 25 26################################################################################ 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"; 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 WARNINGS_ENABLE_ALL="-W3" 166 DISABLED_WARNINGS="4800" 167 ;; 168 169 solstudio) 170 DISABLE_WARNING_PREFIX="-erroff=" 171 CFLAGS_WARNINGS_ARE_ERRORS="-errwarn=%all" 172 173 WARNINGS_ENABLE_ALL_CFLAGS="-v" 174 WARNINGS_ENABLE_ALL_CXXFLAGS="+w" 175 176 DISABLED_WARNINGS_C="" 177 DISABLED_WARNINGS_CXX="" 178 ;; 179 180 gcc) 181 DISABLE_WARNING_PREFIX="-Wno-" 182 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 183 184 # Additional warnings that are not activated by -Wall and -Wextra 185 WARNINGS_ENABLE_ADDITIONAL="-Wpointer-arith -Wsign-compare \ 186 -Wunused-function -Wundef -Wunused-value -Wreturn-type \ 187 -Wtrampolines" 188 WARNINGS_ENABLE_ADDITIONAL_CXX="-Woverloaded-virtual -Wreorder" 189 WARNINGS_ENABLE_ALL_CFLAGS="-Wall -Wextra -Wformat=2 $WARNINGS_ENABLE_ADDITIONAL" 190 WARNINGS_ENABLE_ALL_CXXFLAGS="$WARNINGS_ENABLE_ALL_CFLAGS $WARNINGS_ENABLE_ADDITIONAL_CXX" 191 192 DISABLED_WARNINGS="unused-parameter unused" 193 194 # Repeate the check for the BUILD_CC and BUILD_CXX. Need to also reset 195 # CFLAGS since any target specific flags will likely not work with the 196 # build compiler 197 CC_OLD="$CC" 198 CXX_OLD="$CXX" 199 CC="$BUILD_CC" 200 CXX="$BUILD_CXX" 201 CFLAGS_OLD="$CFLAGS" 202 CFLAGS="" 203 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" 204 CC="$CC_OLD" 205 CXX="$CXX_OLD" 206 CFLAGS="$CFLAGS_OLD" 207 ;; 208 209 clang) 210 DISABLE_WARNING_PREFIX="-Wno-" 211 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 212 213 # Additional warnings that are not activated by -Wall and -Wextra 214 WARNINGS_ENABLE_ADDITIONAL="-Wpointer-arith -Wsign-compare -Wreorder \ 215 -Wunused-function -Wundef -Wunused-value -Woverloaded-virtual" 216 WARNINGS_ENABLE_ALL="-Wall -Wextra -Wformat=2 $WARNINGS_ENABLE_ADDITIONAL" 217 218 DISABLED_WARNINGS="unused-parameter unused" 219 220 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 221 # missing-method-return-type triggers in JavaNativeFoundation framework 222 DISABLED_WARNINGS="$DISABLED_WARNINGS missing-method-return-type" 223 fi 224 225 ;; 226 227 xlc) 228 DISABLE_WARNING_PREFIX="-qsuppress=" 229 CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w" 230 231 # Possibly a better subset than "all" is "lan:trx:ret:zea:cmp:ret" 232 WARNINGS_ENABLE_ALL="-qinfo=all -qformat=all" 233 DISABLED_WARNINGS="" 234 ;; 235 esac 236 AC_SUBST(DISABLE_WARNING_PREFIX) 237 AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX) 238 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 239 AC_SUBST(DISABLED_WARNINGS) 240 AC_SUBST(DISABLED_WARNINGS_C) 241 AC_SUBST(DISABLED_WARNINGS_CXX) 242]) 243 244AC_DEFUN([FLAGS_SETUP_QUALITY_CHECKS], 245[ 246 # bounds, memory and behavior checking options 247 if test "x$TOOLCHAIN_TYPE" = xgcc; then 248 case $DEBUG_LEVEL in 249 release ) 250 # no adjustment 251 ;; 252 fastdebug ) 253 # no adjustment 254 ;; 255 slowdebug ) 256 # FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS/JVM_CFLAGS_SYMBOLS it 257 # get's added conditionally on whether we produce debug symbols or not. 258 # This is most likely not really correct. 259 260 # Add runtime stack smashing and undefined behavior checks. 261 CFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1" 262 CXXFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1" 263 264 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -fstack-protector-all --param ssp-buffer-size=1" 265 ;; 266 esac 267 fi 268]) 269 270AC_DEFUN([FLAGS_SETUP_OPTIMIZATION], 271[ 272 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 273 CC_HIGHEST="-fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 274 275 C_O_FLAG_HIGHEST_JVM="-xO4" 276 C_O_FLAG_DEBUG_JVM="" 277 C_O_FLAG_SIZE="" 278 C_O_FLAG_DEBUG="" 279 C_O_FLAG_NONE="" 280 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 281 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST" 282 C_O_FLAG_HI="-xO4 -Wu,-O4~yz" 283 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz" 284 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 285 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 \ 286 -xprefetch=auto,explicit $CC_HIGHEST" 287 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 288 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 289 fi 290 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 291 C_O_FLAG_HIGHEST_JVM="-O3" 292 C_O_FLAG_HIGHEST="-O3" 293 C_O_FLAG_HI="-O3" 294 C_O_FLAG_NORM="-O2" 295 C_O_FLAG_SIZE="-Os" 296 C_O_FLAG_DEBUG="-O0" 297 C_O_FLAG_DEBUG_JVM="-O0" 298 C_O_FLAG_NONE="-O0" 299 elif test "x$TOOLCHAIN_TYPE" = xclang; then 300 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 301 # On MacOSX we optimize for size, something 302 # we should do for all platforms? 303 C_O_FLAG_HIGHEST_JVM="-Os" 304 C_O_FLAG_HIGHEST="-Os" 305 C_O_FLAG_HI="-Os" 306 C_O_FLAG_NORM="-Os" 307 C_O_FLAG_DEBUG_JVM="" 308 else 309 C_O_FLAG_HIGHEST_JVM="-O3" 310 C_O_FLAG_HIGHEST="-O3" 311 C_O_FLAG_HI="-O3" 312 C_O_FLAG_NORM="-O2" 313 C_O_FLAG_DEBUG_JVM="-O0" 314 fi 315 C_O_FLAG_SIZE="-Os" 316 C_O_FLAG_DEBUG="-O0" 317 C_O_FLAG_NONE="-O0" 318 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 319 C_O_FLAG_HIGHEST_JVM="-O3 -qhot=level=1 -qinline -qinlglue" 320 C_O_FLAG_HIGHEST="-O3 -qhot=level=1 -qinline -qinlglue" 321 C_O_FLAG_HI="-O3 -qinline -qinlglue" 322 C_O_FLAG_NORM="-O2" 323 C_O_FLAG_DEBUG="-qnoopt" 324 # FIXME: Value below not verified. 325 C_O_FLAG_DEBUG_JVM="" 326 C_O_FLAG_NONE="-qnoopt" 327 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 328 C_O_FLAG_HIGHEST_JVM="-O2 -Oy-" 329 C_O_FLAG_HIGHEST="-O2" 330 C_O_FLAG_HI="-O1" 331 C_O_FLAG_NORM="-O1" 332 C_O_FLAG_DEBUG="-Od" 333 C_O_FLAG_DEBUG_JVM="" 334 C_O_FLAG_NONE="-Od" 335 C_O_FLAG_SIZE="-Os" 336 fi 337 338 # Now copy to C++ flags 339 CXX_O_FLAG_HIGHEST_JVM="$C_O_FLAG_HIGHEST_JVM" 340 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 341 CXX_O_FLAG_HI="$C_O_FLAG_HI" 342 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 343 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" 344 CXX_O_FLAG_DEBUG_JVM="$C_O_FLAG_DEBUG_JVM" 345 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 346 CXX_O_FLAG_SIZE="$C_O_FLAG_SIZE" 347 348 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 349 # In solstudio, also add this to C (but not C++) flags... 350 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xalias_level=basic" 351 fi 352 353 # Adjust optimization flags according to debug level. 354 case $DEBUG_LEVEL in 355 release ) 356 # no adjustment 357 ;; 358 fastdebug ) 359 # Not quite so much optimization 360 C_O_FLAG_HI="$C_O_FLAG_NORM" 361 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 362 ;; 363 slowdebug ) 364 # Disable optimization 365 C_O_FLAG_HIGHEST_JVM="$C_O_FLAG_DEBUG_JVM" 366 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" 367 C_O_FLAG_HI="$C_O_FLAG_DEBUG" 368 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" 369 C_O_FLAG_SIZE="$C_O_FLAG_DEBUG" 370 CXX_O_FLAG_HIGHEST_JVM="$CXX_O_FLAG_DEBUG_JVM" 371 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" 372 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" 373 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" 374 CXX_O_FLAG_SIZE="$CXX_O_FLAG_DEBUG" 375 ;; 376 esac 377 378 AC_SUBST(C_O_FLAG_HIGHEST_JVM) 379 AC_SUBST(C_O_FLAG_HIGHEST) 380 AC_SUBST(C_O_FLAG_HI) 381 AC_SUBST(C_O_FLAG_NORM) 382 AC_SUBST(C_O_FLAG_NONE) 383 AC_SUBST(C_O_FLAG_SIZE) 384 AC_SUBST(CXX_O_FLAG_HIGHEST_JVM) 385 AC_SUBST(CXX_O_FLAG_HIGHEST) 386 AC_SUBST(CXX_O_FLAG_HI) 387 AC_SUBST(CXX_O_FLAG_NORM) 388 AC_SUBST(CXX_O_FLAG_NONE) 389 AC_SUBST(CXX_O_FLAG_SIZE) 390]) 391 392AC_DEFUN([FLAGS_SETUP_CFLAGS], 393[ 394 ### CFLAGS 395 396 FLAGS_SETUP_CFLAGS_HELPER 397 398 FLAGS_OS=$OPENJDK_TARGET_OS 399 FLAGS_OS_TYPE=$OPENJDK_TARGET_OS_TYPE 400 FLAGS_CPU=$OPENJDK_TARGET_CPU 401 FLAGS_CPU_ARCH=$OPENJDK_TARGET_CPU_ARCH 402 FLAGS_CPU_BITS=$OPENJDK_TARGET_CPU_BITS 403 FLAGS_CPU_ENDIAN=$OPENJDK_TARGET_CPU_ENDIAN 404 FLAGS_CPU_LEGACY=$OPENJDK_TARGET_CPU_LEGACY 405 FLAGS_CPU_LEGACY_LIB=$OPENJDK_TARGET_CPU_LEGACY_LIB 406 407 FLAGS_SETUP_CFLAGS_CPU_DEP([TARGET]) 408 409 FLAGS_OS=$OPENJDK_BUILD_OS 410 FLAGS_OS_TYPE=$OPENJDK_BUILD_OS_TYPE 411 FLAGS_CPU=$OPENJDK_BUILD_CPU 412 FLAGS_CPU_ARCH=$OPENJDK_BUILD_CPU_ARCH 413 FLAGS_CPU_BITS=$OPENJDK_BUILD_CPU_BITS 414 FLAGS_CPU_ENDIAN=$OPENJDK_BUILD_CPU_ENDIAN 415 FLAGS_CPU_LEGACY=$OPENJDK_BUILD_CPU_LEGACY 416 FLAGS_CPU_LEGACY_LIB=$OPENJDK_BUILD_CPU_LEGACY_LIB 417 418 FLAGS_SETUP_CFLAGS_CPU_DEP([BUILD], [OPENJDK_BUILD_]) 419 420 COMPILER_FP_CONTRACT_OFF_FLAG="-ffp-contract=off" 421 # Check that the compiler supports -ffp-contract=off flag 422 # Set FDLIBM_CFLAGS to -ffp-contract=off if it does. Empty 423 # otherwise. 424 # These flags are required for GCC-based builds of 425 # fdlibm with optimization without losing precision. 426 # Notably, -ffp-contract=off needs to be added for GCC >= 4.6. 427 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 428 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_FP_CONTRACT_OFF_FLAG}], 429 IF_TRUE: [FDLIBM_CFLAGS=${COMPILER_FP_CONTRACT_OFF_FLAG}], 430 IF_FALSE: [FDLIBM_CFLAGS=""]) 431 fi 432 AC_SUBST(FDLIBM_CFLAGS) 433]) 434 435################################################################################ 436# platform independent 437AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER], 438[ 439 #### OS DEFINES, these should be independent on toolchain 440 if test "x$OPENJDK_TARGET_OS" = xlinux; then 441 CFLAGS_OS_DEF_JVM="-DLINUX" 442 CFLAGS_OS_DEF_JDK="-D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 443 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then 444 CFLAGS_OS_DEF_JVM="-DSOLARIS" 445 CFLAGS_OS_DEF_JDK="-D__solaris__" 446 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 447 CFLAGS_OS_DEF_JVM="-D_ALLBSD_SOURCE -D_DARWIN_C_SOURCE -D_XOPEN_SOURCE" 448 CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 449 elif test "x$OPENJDK_TARGET_OS" = xaix; then 450 CFLAGS_OS_DEF_JVM="-DAIX" 451 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 452 CFLAGS_OS_DEF_JVM="-D_ALLBSD_SOURCE -D_BSDONLY_SOURCE" 453 CFLAGS_OS_DEF_JDK="-D_ALLBSD_SOURCE -D_BSDONLY_SOURCE -D_REENTRANT" 454 elif test "x$OPENJDK_TARGET_OS" = xwindows; then 455 CFLAGS_OS_DEF_JVM="-D_WINDOWS -DWIN32 -D_JNI_IMPLEMENTATION_" 456 fi 457 458 CFLAGS_OS_DEF_JDK="$CFLAGS_OS_DEF_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 459 460 #### GLOBAL DEFINES 461 # Set some common defines. These works for all compilers, but assume 462 # -D is universally accepted. 463 464 # Always enable optional macros for VM. 465 ALWAYS_CFLAGS_JVM="-D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS" 466 467 # Setup some hard coded includes 468 ALWAYS_CFLAGS_JDK=" \ 469 -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base \ 470 -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base/\$(OPENJDK_TARGET_OS_INCLUDE_SUBDIR) \ 471 -I${TOPDIR}/src/java.base/share/native/libjava \ 472 -I${TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava \ 473 -I${TOPDIR}/src/hotspot/share/include \ 474 -I${TOPDIR}/src/hotspot/os/${HOTSPOT_TARGET_OS_TYPE}/include" 475 476 ############################################################################### 477 478 # Adjust flags according to debug level. 479 # Setup debug/release defines 480 if test "x$DEBUG_LEVEL" = xrelease; then 481 DEBUG_CFLAGS_JDK="-DNDEBUG" 482 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 483 DEBUG_CFLAGS_JDK="$DEBUG_CFLAGS_JDK -DTRIMMED" 484 fi 485 else 486 DEBUG_CFLAGS_JDK="-DDEBUG" 487 488 if test "x$TOOLCHAIN_TYPE" = xxlc; then 489 # We need '-qminimaltoc' or '-qpic=large -bbigtoc' if the TOC overflows. 490 # Hotspot now overflows its 64K TOC (currently only for debug), 491 # so for debug we build with '-qpic=large -bbigtoc'. 492 DEBUG_CFLAGS_JVM="-qpic=large" 493 fi 494 fi 495 496 if test "x$DEBUG_LEVEL" != xrelease; then 497 DEBUG_OPTIONS_FLAGS_JDK="$CFLAGS_DEBUG_OPTIONS" 498 DEBUG_SYMBOLS_CFLAGS_JDK="$CFLAGS_DEBUG_SYMBOLS" 499 fi 500 501 #### TOOLCHAIN DEFINES 502 503 if test "x$TOOLCHAIN_TYPE" = xgcc; then 504 ALWAYS_DEFINES_JVM="-D_GNU_SOURCE -D_REENTRANT" 505 elif test "x$TOOLCHAIN_TYPE" = xclang; then 506 ALWAYS_DEFINES_JVM="-D_GNU_SOURCE" 507 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 508 ALWAYS_DEFINES_JVM="-DSPARC_WORKS -D_Crun_inline_placement" 509 ALWAYS_DEFINES_JDK="-DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 510 ALWAYS_DEFINES_JDK_CXXONLY="-DCC_NOEX" 511 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 512 ALWAYS_DEFINES_JVM="-D_REENTRANT" 513 ALWAYS_DEFINES_JDK="-D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 514 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 515 ALWAYS_DEFINES_JDK="-DWIN32_LEAN_AND_MEAN -D_CRT_SECURE_NO_DEPRECATE \ 516 -D_CRT_NONSTDC_NO_DEPRECATE -DWIN32 -DIAL" 517 ALWAYS_DEFINES_JVM="-DNOMINMAX -DWIN32_LEAN_AND_MEAN" 518 fi 519 520 ############################################################################### 521 # 522 # 523 # CFLAGS BASIC 524 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 525 # COMMON to gcc and clang 526 TOOLCHAIN_CFLAGS_JVM="-pipe -fno-rtti -fno-exceptions \ 527 -fvisibility=hidden -fno-strict-aliasing -fno-omit-frame-pointer" 528 fi 529 530 if test "x$TOOLCHAIN_TYPE" = xgcc; then 531 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -fcheck-new -fstack-protector" 532 TOOLCHAIN_CFLAGS_JDK="-pipe -fstack-protector" 533 TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" # technically NOT for CXX (but since this gives *worse* performance, use no-strict-aliasing everywhere!) 534 535 CXXSTD_CXXFLAG="-std=gnu++98" 536 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$CXXSTD_CXXFLAG -Werror], 537 IF_FALSE: [CXXSTD_CXXFLAG=""]) 538 TOOLCHAIN_CFLAGS_JDK_CXXONLY="$CXXSTD_CXXFLAG" 539 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM $CXXSTD_CXXFLAG" 540 ADLC_CXXFLAG="$CXXSTD_CXXFLAG" 541 542 543 elif test "x$TOOLCHAIN_TYPE" = xclang; then 544 # Restrict the debug information created by Clang to avoid 545 # too big object files and speed the build up a little bit 546 # (see http://llvm.org/bugs/show_bug.cgi?id=7554) 547 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -flimit-debug-info" 548 549 # In principle the stack alignment below is cpu- and ABI-dependent and 550 # should agree with values of StackAlignmentInBytes in various 551 # src/hotspot/cpu/*/globalDefinitions_*.hpp files, but this value currently 552 # works for all platforms. 553 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -mno-omit-leaf-frame-pointer -mstack-alignment=16" 554 555 if test "x$OPENJDK_TARGET_CPU" = xx86; then 556 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM -mstackrealign" 557 fi 558 559 if test "x$OPENJDK_TARGET_OS" = xlinux; then 560 TOOLCHAIN_CFLAGS_JDK="-pipe" 561 TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" # technically NOT for CXX 562 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 563 TOOLCHAIN_CFLAGS_JDK="-pipe" 564 TOOLCHAIN_CFLAGS_JDK_CONLY="-fno-strict-aliasing" # technically NOT for CXX 565 566 CXXSTD_CXXFLAG="-std=gnu++98" 567 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$CXXSTD_CXXFLAG -Werror], 568 IF_FALSE: [CXXSTD_CXXFLAG=""]) 569 TOOLCHAIN_CFLAGS_JDK_CXXONLY="$CXXSTD_CXXFLAG" 570 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM $CXXSTD_CXXFLAG" 571 ADLC_CXXFLAG="$CXXSTD_CXXFLAG" 572 fi 573 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 574 TOOLCHAIN_FLAGS="-errtags -errfmt" 575 TOOLCHAIN_CFLAGS="-errshort=tags" 576 577 TOOLCHAIN_CFLAGS_JDK="-mt $TOOLCHAIN_FLAGS" 578 TOOLCHAIN_CFLAGS_JDK_CONLY="-xCC -Xa -W0,-noglobal $TOOLCHAIN_CFLAGS" # C only 579 TOOLCHAIN_CFLAGS_JDK_CXXONLY="-features=no%except -norunpath -xnolib" # CXX only 580 TOOLCHAIN_CFLAGS_JVM="-template=no%extdef -features=no%split_init \ 581 -library=stlport4 -mt -features=no%except $TOOLCHAIN_FLAGS" 582 if test "x$DEBUG_LEVEL" = xslowdebug; then 583 # Previously -g was used instead of -g0 for slowdebug; this is equivalent 584 # to setting +d. 585 TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM +d" 586 fi 587 588 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 589 # Suggested additions: -qsrcmsg to get improved error reporting 590 TOOLCHAIN_CFLAGS_JDK="-qchars=signed -qfullpath -qsaveopt" # add on both CFLAGS 591 TOOLCHAIN_CFLAGS_JVM="-qtune=balanced \ 592 -qalias=noansi -qstrict -qtls=default -qlanglvl=c99vla \ 593 -qlanglvl=noredefmac -qnortti -qnoeh -qignerrno" 594 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 595 TOOLCHAIN_CFLAGS_JVM="-nologo -MD -MP" 596 TOOLCHAIN_CFLAGS_JDK="-nologo -MD -Zc:wchar_t-" 597 fi 598 599 # CFLAGS WARNINGS STUFF 600 # Set JVM_CFLAGS warning handling 601 if test "x$TOOLCHAIN_TYPE" = xgcc; then 602 WARNING_CFLAGS_JDK_CONLY="$WARNINGS_ENABLE_ALL_CFLAGS" 603 WARNING_CFLAGS_JDK_CXXONLY="$WARNINGS_ENABLE_ALL_CXXFLAGS" 604 WARNING_CFLAGS_JVM="$WARNINGS_ENABLE_ALL_CXXFLAGS" 605 606 elif test "x$TOOLCHAIN_TYPE" = xclang; then 607 WARNING_CFLAGS="$WARNINGS_ENABLE_ALL" 608 609 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 610 WARNING_CFLAGS_JDK_CONLY="$WARNINGS_ENABLE_ALL_CFLAGS" 611 WARNING_CFLAGS_JDK_CXXONLY="$WARNINGS_ENABLE_ALL_CXXFLAGS" 612 WARNING_CFLAGS_JVM="$WARNINGS_ENABLE_ALL_CXXFLAGS" 613 614 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 615 WARNING_CFLAGS="$WARNINGS_ENABLE_ALL" 616 617 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 618 WARNING_CFLAGS="" # currently left empty 619 fi 620 621 # Set some additional per-OS defines. 622 623 # Additional macosx handling 624 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 625 OS_CFLAGS="-DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \ 626 -mmacosx-version-min=$MACOSX_VERSION_MIN" 627 628 if test -n "$MACOSX_VERSION_MAX"; then 629 OS_CFLAGS="$OS_CFLAGS \ 630 -DMAC_OS_X_VERSION_MAX_ALLOWED=$MACOSX_VERSION_MAX_NODOTS" 631 fi 632 fi 633 634 # Where does this really belong?? 635 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 636 PICFLAG="-fPIC" 637 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 638 PICFLAG="-KPIC" 639 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 640 # '-qpic' defaults to 'qpic=small'. This means that the compiler generates only 641 # one instruction for accessing the TOC. If the TOC grows larger than 64K, the linker 642 # will have to patch this single instruction with a call to some out-of-order code which 643 # does the load from the TOC. This is of course slower, and we also would have 644 # to use '-bbigtoc' for linking anyway so we could also change the PICFLAG to 'qpic=large'. 645 # With 'qpic=large' the compiler will by default generate a two-instruction sequence which 646 # can be patched directly by the linker and does not require a jump to out-of-order code. 647 # 648 # Since large TOC causes perf. overhead, only pay it where we must. Currently this is 649 # for all libjvm variants (both gtest and normal) but no other binaries. So, build 650 # libjvm with -qpic=large and link with -bbigtoc. 651 JVM_PICFLAG="-qpic=large" 652 JDK_PICFLAG="-qpic" 653 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 654 PICFLAG="" 655 fi 656 657 if test "x$TOOLCHAIN_TYPE" != xxlc; then 658 JVM_PICFLAG="$PICFLAG" 659 JDK_PICFLAG="$PICFLAG" 660 fi 661 662 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 663 # Linking is different on MacOSX 664 JDK_PICFLAG='' 665 if test "x$STATIC_BUILD" = xtrue; then 666 JVM_PICFLAG="" 667 fi 668 fi 669 670 # Optional POSIX functionality needed by the JVM 671 # 672 # Check if clock_gettime is available and in which library. This indicates 673 # availability of CLOCK_MONOTONIC for hotspot. But we don't need to link, so 674 # don't let it update LIBS. 675 save_LIBS="$LIBS" 676 AC_SEARCH_LIBS(clock_gettime, rt, [HAS_CLOCK_GETTIME=true], []) 677 if test "x$LIBS" = "x-lrt "; then 678 CLOCK_GETTIME_IN_LIBRT=true 679 fi 680 LIBS="$save_LIBS" 681 682 if test "x$HAS_CLOCK_GETTIME" = "xtrue"; then 683 OS_CFLAGS_JVM="$OS_CFLAGS_JVM -DSUPPORTS_CLOCK_MONOTONIC" 684 if test "x$CLOCK_GETTIME_IN_LIBRT" = "xtrue"; then 685 OS_CFLAGS_JVM="$OS_CFLAGS_JVM -DNEEDS_LIBRT" 686 fi 687 fi 688 689 # EXPORT 690 AC_SUBST(ADLC_CXXFLAG) 691]) 692 693################################################################################ 694# $1 - Either BUILD or TARGET to pick the correct OS/CPU variables to check 695# conditionals against. 696# $2 - Optional prefix for each variable defined. 697AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP], 698[ 699 #### CPU DEFINES, these should (in theory) be independent on toolchain 700 701 # Setup target CPU 702 # Setup endianness 703 if test "x$FLAGS_CPU_ENDIAN" = xlittle; then 704 $1_DEFINES_CPU_JVM="-DVM_LITTLE_ENDIAN" 705 fi 706 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 707 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 708 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 709 if test "x$FLAGS_CPU_ENDIAN" = xlittle; then 710 $1_DEFINES_CPU_JDK="-D_LITTLE_ENDIAN=" 711 else 712 $1_DEFINES_CPU_JDK="-D_BIG_ENDIAN=" 713 fi 714 else 715 if test "x$FLAGS_CPU_ENDIAN" = xlittle; then 716 $1_DEFINES_CPU_JDK="-D_LITTLE_ENDIAN" 717 else 718 $1_DEFINES_CPU_JDK="-D_BIG_ENDIAN" 719 fi 720 fi 721 722 # setup CPU bit size 723 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DARCH='\"$FLAGS_CPU_LEGACY\"' \ 724 -D$FLAGS_CPU_LEGACY" 725 726 if test "x$FLAGS_CPU_BITS" = x64; then 727 # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in 728 # unpack200.exe. 729 if test "x$FLAGS_OS" = xlinux || test "x$FLAGS_OS" = xmacosx || test "x$FLAGS_OS" = xbsd; then 730 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_LP64=1" 731 fi 732 if test "x$FLAGS_OS" != xsolaris && test "x$FLAGS_OS" != xaix; then 733 # Solaris does not have _LP64=1 in the old build. 734 # xlc on AIX defines _LP64=1 by default and issues a warning if we redefine it. 735 $1_DEFINES_CPU_JVM="${$1_DEFINES_CPU_JVM} -D_LP64=1" 736 fi 737 fi 738 739 # toolchain dependend, per-cpu 740 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 741 if test "x$FLAGS_CPU_ARCH" = xx86; then 742 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DcpuIntel -Di586 -D$FLAGS_CPU_LEGACY_LIB" 743 fi 744 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 745 if test "x$FLAGS_CPU" = xx86_64; then 746 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_AMD64_ -Damd64" 747 else 748 $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_X86_ -Dx86" 749 fi 750 fi 751 752 # CFLAGS PER CPU 753 if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 754 # COMMON to gcc and clang 755 if test "x$FLAGS_CPU" = xx86; then 756 # Force compatibility with i586 on 32 bit intel platforms. 757 $1_CFLAGS_CPU="-march=i586" 758 fi 759 fi 760 761 if test "x$TOOLCHAIN_TYPE" = xgcc; then 762 if test "x$FLAGS_CPU" = xarm; then 763 # -Wno-psabi to get rid of annoying "note: the mangling of 'va_list' has changed in GCC 4.4" 764 $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)\"'" 765 $1_CFLAGS_CPU_JVM="-DARM" 766 elif test "x$FLAGS_CPU_ARCH" = xppc; then 767 $1_CFLAGS_CPU_JVM="-minsert-sched-nops=regroup_exact -mno-multiple -mno-string" 768 if test "x$FLAGS_CPU" = xppc64; then 769 # -mminimal-toc fixes `relocation truncated to fit' error for gcc 4.1. 770 # Use ppc64 instructions, but schedule for power5 771 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -mminimal-toc -mcpu=powerpc64 -mtune=power5" 772 elif test "x$FLAGS_CPU" = xppc64le; then 773 # Little endian machine uses ELFv2 ABI. 774 # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI. 775 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power8" 776 fi 777 elif test "x$FLAGS_CPU" = xs390x; then 778 $1_CFLAGS_CPU="-mbackchain -march=z10" 779 fi 780 781 if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then 782 # for all archs except arm and ppc, prevent gcc to omit frame pointer 783 $1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer" 784 fi 785 786 elif test "x$TOOLCHAIN_TYPE" = xclang; then 787 if test "x$FLAGS_OS" = xlinux; then 788 # ppc test not really needed for clang 789 if test "x$FLAGS_CPU_ARCH" != xarm && test "x$FLAGS_CPU_ARCH" != xppc; then 790 # for all archs except arm and ppc, prevent gcc to omit frame pointer 791 $1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer" 792 fi 793 elif test "x$OPENJDK_TARGET_OS_ENV" = xbsd.freebsd; then 794 if test "x$FLAGS_CPU" = xppc64; then 795 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=powerpc64 -mtune=power5" 796 elif test "x$FLAGS_CPU" = xppc64le; then 797 # Little endian machine uses ELFv2 ABI. 798 # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI. 799 $1_CFLAGS_CPU_JVM="${$1_CFLAGS_CPU_JVM} -DABI_ELFv2 -mcpu=power8 -mtune=power8" 800 fi 801 fi 802 803 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 804 if test "x$FLAGS_CPU" = xx86_64; then 805 # NOTE: -xregs=no%frameptr is supposed to be default on x64 806 $1_CFLAGS_CPU_JDK="-xregs=no%frameptr" 807 elif test "x$FLAGS_CPU" = xsparcv9; then 808 $1_CFLAGS_CPU_JVM="-xarch=sparc" 809 $1_CFLAGS_CPU_JDK_LIBONLY="-xregs=no%appl" 810 fi 811 812 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 813 if test "x$FLAGS_CPU" = xppc64; then 814 $1_CFLAGS_CPU_JVM="-qarch=ppc64" 815 fi 816 817 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 818 if test "x$FLAGS_CPU" = xx86; then 819 $1_CFLAGS_CPU_JVM="-arch:IA32" 820 elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then 821 if test "x$DEBUG_LEVEL" != xrelease; then 822 # NOTE: This is probably redundant; -homeparams is default on 823 # non-release builds. 824 $1_CFLAGS_CPU_JVM="-homeparams" 825 fi 826 fi 827 fi 828 829 if test "x$TOOLCHAIN_TYPE" = xgcc; then 830 TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: 6, PREFIX: $2, IF_AT_LEAST: FLAGS_SETUP_GCC6_COMPILER_FLAGS($1)) 831 $1_TOOLCHAIN_CFLAGS="${$1_GCC6_CFLAGS}" 832 833 $1_WARNING_CFLAGS_JVM="-Wno-format-zero-length -Wtype-limits -Wuninitialized" 834 fi 835 836 # EXPORT to API 837 CFLAGS_JVM_COMMON="$ALWAYS_CFLAGS_JVM $ALWAYS_DEFINES_JVM $TOOLCHAIN_CFLAGS_JVM \ 838 $OS_CFLAGS $OS_CFLAGS_JVM $CFLAGS_OS_DEF_JVM $DEBUG_CFLAGS_JVM \ 839 $WARNING_CFLAGS $WARNING_CFLAGS_JVM $JVM_PICFLAG" 840 841 CFLAGS_JDK_COMMON="$ALWAYS_CFLAGS_JDK $ALWAYS_DEFINES_JDK $TOOLCHAIN_CFLAGS_JDK \ 842 $OS_CFLAGS $CFLAGS_OS_DEF_JDK $DEBUG_CFLAGS_JDK $DEBUG_OPTIONS_FLAGS_JDK \ 843 $WARNING_CFLAGS $WARNING_CFLAGS_JDK $DEBUG_SYMBOLS_CFLAGS_JDK" 844 845 # Use ${$2EXTRA_CFLAGS} to block EXTRA_CFLAGS to be added to build flags. 846 # (Currently we don't have any OPENJDK_BUILD_EXTRA_CFLAGS, but that might 847 # change in the future.) 848 849 CFLAGS_JDK_COMMON_CONLY="$TOOLCHAIN_CFLAGS_JDK_CONLY \ 850 $WARNING_CFLAGS_JDK_CONLY ${$2EXTRA_CFLAGS}" 851 CFLAGS_JDK_COMMON_CXXONLY="$ALWAYS_DEFINES_JDK_CXXONLY $TOOLCHAIN_CFLAGS_JDK_CXXONLY \ 852 $WARNING_CFLAGS_JDK_CXXONLY ${$2EXTRA_CXXFLAGS}" 853 854 $1_CFLAGS_JVM="${$1_DEFINES_CPU_JVM} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JVM} ${$1_TOOLCHAIN_CFLAGS} ${$1_WARNING_CFLAGS_JVM}" 855 $1_CFLAGS_JDK="${$1_DEFINES_CPU_JDK} ${$1_CFLAGS_CPU} ${$1_CFLAGS_CPU_JDK} ${$1_TOOLCHAIN_CFLAGS}" 856 857 $2JVM_CFLAGS="$CFLAGS_JVM_COMMON ${$1_CFLAGS_JVM} ${$2EXTRA_CXXFLAGS}" 858 859 $2CFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CONLY ${$1_CFLAGS_JDK}" 860 $2CXXFLAGS_JDKEXE="$CFLAGS_JDK_COMMON $CFLAGS_JDK_COMMON_CXXONLY ${$1_CFLAGS_JDK}" 861 $2CFLAGS_JDKLIB="${$2CFLAGS_JDKEXE} $JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}" 862 $2CXXFLAGS_JDKLIB="${$2CXXFLAGS_JDKEXE} $JDK_PICFLAG ${$1_CFLAGS_CPU_JDK_LIBONLY}" 863 864 AC_SUBST($2JVM_CFLAGS) 865 AC_SUBST($2CFLAGS_JDKLIB) 866 AC_SUBST($2CFLAGS_JDKEXE) 867 AC_SUBST($2CXXFLAGS_JDKLIB) 868 AC_SUBST($2CXXFLAGS_JDKEXE) 869]) 870 871# FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX]) 872# Arguments: 873# $1 - Prefix for each variable defined. 874AC_DEFUN([FLAGS_SETUP_GCC6_COMPILER_FLAGS], 875[ 876 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code 877 # runs afoul of the more aggressive versions of these optimisations. 878 # Notably, value range propagation now assumes that the this pointer of C++ 879 # member functions is non-null. 880 NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks" 881 dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation 882 dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror], 883 dnl IF_FALSE: [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""]) 884 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse" 885 dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation 886 dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror], 887 dnl IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""]) 888 AC_MSG_NOTICE([GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}]) 889 $1_GCC6_CFLAGS="${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}" 890]) 891 892# Documentation on common flags used for solstudio in HIGHEST. 893# 894# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be 895# done with care, there are some assumptions below that need to 896# be understood about the use of pointers, and IEEE behavior. 897# 898# -fns: Use non-standard floating point mode (not IEEE 754) 899# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) 900# -fsingle: Use single precision floating point with 'float' 901# -xalias_level=basic: Assume memory references via basic pointer types do not alias 902# (Source with excessing pointer casting and data access with mixed 903# pointer types are not recommended) 904# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions 905# (If you expect perfect errno behavior, do not use this) 906# -xdepend: Loop data dependency optimizations (need -xO3 or higher) 907# -xrestrict: Pointer parameters to functions do not overlap 908# (Similar to -xalias_level=basic usage, but less obvious sometimes. 909# If you pass in multiple pointers to the same data, do not use this) 910# -xlibmil: Inline some library routines 911# (If you expect perfect errno behavior, do not use this) 912# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) 913# (If you expect perfect errno behavior, do not use this) 914# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now 915