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