flags.m4 revision 1243:56e20ce67f01
1# 2# Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved. 3# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4# 5# This code is free software; you can redistribute it and/or modify it 6# under the terms of the GNU General Public License version 2 only, as 7# published by the Free Software Foundation. Oracle designates this 8# particular file as subject to the "Classpath" exception as provided 9# by Oracle in the LICENSE file that accompanied this code. 10# 11# This code is distributed in the hope that it will be useful, but WITHOUT 12# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14# version 2 for more details (a copy is included in the LICENSE file that 15# accompanied this code). 16# 17# You should have received a copy of the GNU General Public License version 18# 2 along with this work; if not, write to the Free Software Foundation, 19# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20# 21# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22# or visit www.oracle.com if you need additional information or have any 23# questions. 24# 25 26AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS], 27[ 28 # Option used to tell the compiler whether to create 32- or 64-bit executables 29 if test "x$TOOLCHAIN_TYPE" = xxlc; then 30 COMPILER_TARGET_BITS_FLAG="-q" 31 else 32 COMPILER_TARGET_BITS_FLAG="-m" 33 fi 34 AC_SUBST(COMPILER_TARGET_BITS_FLAG) 35 36 # FIXME: figure out if we should select AR flags depending on OS or toolchain. 37 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 38 ARFLAGS="-r" 39 elif test "x$OPENJDK_TARGET_OS" = xaix; then 40 ARFLAGS="-X64" 41 elif test "x$OPENJDK_TARGET_OS" = xwindows; then 42 # lib.exe is used as AR to create static libraries. 43 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT" 44 else 45 ARFLAGS="" 46 fi 47 AC_SUBST(ARFLAGS) 48 49 ## Setup strip. 50 # FIXME: should this really be per platform, or should it be per toolchain type? 51 # strip is not provided by clang or solstudio; so guessing platform makes most sense. 52 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD. 53 if test "x$OPENJDK_TARGET_OS" = xlinux; then 54 STRIPFLAGS="-g" 55 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then 56 STRIPFLAGS="-x" 57 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 58 STRIPFLAGS="-S" 59 elif test "x$OPENJDK_TARGET_OS" = xaix; then 60 STRIPFLAGS="-X32_64" 61 fi 62 63 if test "x$OPENJDK_TARGET_OS" != xwindows; then 64 POST_STRIP_CMD="$STRIP $STRIPFLAGS" 65 fi 66 AC_SUBST(POST_STRIP_CMD) 67 68 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 69 # FIXME: break out into MCSFLAGS 70 POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\"" 71 fi 72 AC_SUBST(POST_MCS_CMD) 73 74 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 75 CC_OUT_OPTION=-Fo 76 EXE_OUT_OPTION=-out: 77 LD_OUT_OPTION=-out: 78 AR_OUT_OPTION=-out: 79 else 80 # The option used to specify the target .o,.a or .so file. 81 # When compiling, how to specify the to be created object file. 82 CC_OUT_OPTION='-o$(SPACE)' 83 # When linking, how to specify the to be created executable. 84 EXE_OUT_OPTION='-o$(SPACE)' 85 # When linking, how to specify the to be created dynamically linkable library. 86 LD_OUT_OPTION='-o$(SPACE)' 87 # When archiving, how to specify the to be create static archive for object files. 88 AR_OUT_OPTION='rcs$(SPACE)' 89 fi 90 AC_SUBST(CC_OUT_OPTION) 91 AC_SUBST(EXE_OUT_OPTION) 92 AC_SUBST(LD_OUT_OPTION) 93 AC_SUBST(AR_OUT_OPTION) 94 95 # On Windows, we need to set RC flags. 96 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 97 RC_FLAGS="-nologo -l0x409" 98 if test "x$VARIANT" = xOPT; then 99 RC_FLAGS="$RC_FLAGS -DNDEBUG" 100 fi 101 102 # The version variables used to create RC_FLAGS may be overridden 103 # in a custom configure script, or possibly the command line. 104 # Let those variables be expanded at make time in spec.gmk. 105 # The \$ are escaped to the shell, and the $(...) variables 106 # are evaluated by make. 107 RC_FLAGS="$RC_FLAGS \ 108 -D\"JDK_BUILD_ID=\$(FULL_VERSION)\" \ 109 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \ 110 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \ 111 -D\"JDK_VER=\$(JDK_MINOR_VERSION).\$(JDK_MICRO_VERSION).\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0).\$(COOKED_BUILD_NUMBER)\" \ 112 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \ 113 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(JDK_MINOR_VERSION) \$(JDK_UPDATE_META_TAG)\" \ 114 -D\"JDK_FVER=\$(JDK_MINOR_VERSION),\$(JDK_MICRO_VERSION),\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0),\$(COOKED_BUILD_NUMBER)\"" 115 fi 116 AC_SUBST(RC_FLAGS) 117 118 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 119 # silence copyright notice and other headers. 120 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo" 121 fi 122 123 if test "x$SYSROOT" != "x"; then 124 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 125 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 126 # Solaris Studio does not have a concept of sysroot. Instead we must 127 # make sure the default include and lib dirs are appended to each 128 # compile and link command line. 129 SYSROOT_CFLAGS="-I$SYSROOT/usr/include" 130 SYSROOT_LDFLAGS="-L$SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \ 131 -L$SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \ 132 -L$SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR" 133 fi 134 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 135 # Apple only wants -isysroot <path>, but we also need -iframework<path>/System/Library/Frameworks 136 SYSROOT_CFLAGS="-isysroot \"$SYSROOT\" -iframework\"$SYSROOT/System/Library/Frameworks\"" 137 SYSROOT_LDFLAGS=$SYSROOT_CFLAGS 138 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 139 SYSROOT_CFLAGS="--sysroot=$SYSROOT" 140 SYSROOT_LDFLAGS="--sysroot=$SYSROOT" 141 elif test "x$TOOLCHAIN_TYPE" = xclang; then 142 SYSROOT_CFLAGS="-isysroot \"$SYSROOT\"" 143 SYSROOT_LDFLAGS="-isysroot \"$SYSROOT\"" 144 fi 145 # Propagate the sysroot args to hotspot 146 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $SYSROOT_CFLAGS" 147 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $SYSROOT_CFLAGS" 148 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $SYSROOT_LDFLAGS" 149 fi 150 151 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework 152 # set this here so it doesn't have to be peppered throughout the forest 153 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 154 SYSROOT_CFLAGS="$SYSROOT_CFLAGS -F\"$SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks\"" 155 SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS -F\"$SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks\"" 156 fi 157 158 AC_SUBST(SYSROOT_CFLAGS) 159 AC_SUBST(SYSROOT_LDFLAGS) 160]) 161 162AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS], 163[ 164 ############################################################################### 165 # 166 # How to compile shared libraries. 167 # 168 169 if test "x$TOOLCHAIN_TYPE" = xgcc; then 170 PICFLAG="-fPIC" 171 C_FLAG_REORDER='' 172 CXX_FLAG_REORDER='' 173 174 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 175 # Linking is different on MacOSX 176 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 177 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.' 178 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 179 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1' 180 SET_SHARED_LIBRARY_MAPFILE='' 181 else 182 # Default works for linux, might work on other platforms as well. 183 SHARED_LIBRARY_FLAGS='-shared' 184 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1' 185 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN" 186 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1' 187 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1' 188 fi 189 elif test "x$TOOLCHAIN_TYPE" = xclang; then 190 PICFLAG='' 191 C_FLAG_REORDER='' 192 CXX_FLAG_REORDER='' 193 194 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 195 # Linking is different on MacOSX 196 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 197 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.' 198 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 199 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1' 200 SET_SHARED_LIBRARY_MAPFILE='' 201 else 202 # Default works for linux, might work on other platforms as well. 203 SHARED_LIBRARY_FLAGS='-shared' 204 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1' 205 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN" 206 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1' 207 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1' 208 fi 209 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 210 PICFLAG="-KPIC" 211 C_FLAG_REORDER='-xF' 212 CXX_FLAG_REORDER='-xF' 213 SHARED_LIBRARY_FLAGS="-G" 214 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1' 215 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 216 SET_SHARED_LIBRARY_NAME='' 217 SET_SHARED_LIBRARY_MAPFILE='-M[$]1' 218 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 219 PICFLAG="-qpic=large" 220 C_FLAG_REORDER='' 221 CXX_FLAG_REORDER='' 222 SHARED_LIBRARY_FLAGS="-qmkshrobj" 223 SET_EXECUTABLE_ORIGIN="" 224 SET_SHARED_LIBRARY_ORIGIN='' 225 SET_SHARED_LIBRARY_NAME='' 226 SET_SHARED_LIBRARY_MAPFILE='' 227 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 228 PICFLAG="" 229 C_FLAG_REORDER='' 230 CXX_FLAG_REORDER='' 231 SHARED_LIBRARY_FLAGS="-LD" 232 SET_EXECUTABLE_ORIGIN='' 233 SET_SHARED_LIBRARY_ORIGIN='' 234 SET_SHARED_LIBRARY_NAME='' 235 SET_SHARED_LIBRARY_MAPFILE='' 236 fi 237 238 AC_SUBST(C_FLAG_REORDER) 239 AC_SUBST(CXX_FLAG_REORDER) 240 AC_SUBST(SHARED_LIBRARY_FLAGS) 241 AC_SUBST(SET_EXECUTABLE_ORIGIN) 242 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) 243 AC_SUBST(SET_SHARED_LIBRARY_NAME) 244 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) 245 246 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 247 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__" 248 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__" 249 CFLAGS_JDKLIB_EXTRA='-xstrconst' 250 fi 251 # The (cross) compiler is now configured, we can now test capabilities 252 # of the target platform. 253]) 254 255# Documentation on common flags used for solstudio in HIGHEST. 256# 257# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be 258# done with care, there are some assumptions below that need to 259# be understood about the use of pointers, and IEEE behavior. 260# 261# -fns: Use non-standard floating point mode (not IEEE 754) 262# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) 263# -fsingle: Use single precision floating point with 'float' 264# -xalias_level=basic: Assume memory references via basic pointer types do not alias 265# (Source with excessing pointer casting and data access with mixed 266# pointer types are not recommended) 267# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions 268# (If you expect perfect errno behavior, do not use this) 269# -xdepend: Loop data dependency optimizations (need -xO3 or higher) 270# -xrestrict: Pointer parameters to functions do not overlap 271# (Similar to -xalias_level=basic usage, but less obvious sometimes. 272# If you pass in multiple pointers to the same data, do not use this) 273# -xlibmil: Inline some library routines 274# (If you expect perfect errno behavior, do not use this) 275# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) 276# (If you expect perfect errno behavior, do not use this) 277# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now 278 279 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore. 280 # Bug? 281 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then 282 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s" 283 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s" 284 #fi 285 286AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION], 287[ 288 289 ############################################################################### 290 # 291 # Setup the opt flags for different compilers 292 # and different operating systems. 293 # 294 295 # FIXME: this was indirectly the old default, but just inherited. 296 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 297 # C_FLAG_DEPS="-MMD -MF" 298 # fi 299 300 # Generate make dependency files 301 if test "x$TOOLCHAIN_TYPE" = xgcc; then 302 C_FLAG_DEPS="-MMD -MF" 303 elif test "x$TOOLCHAIN_TYPE" = xclang; then 304 C_FLAG_DEPS="-MMD -MF" 305 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 306 C_FLAG_DEPS="-xMMD -xMF" 307 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 308 C_FLAG_DEPS="-qmakedep=gcc -MF" 309 fi 310 CXX_FLAG_DEPS="$C_FLAG_DEPS" 311 AC_SUBST(C_FLAG_DEPS) 312 AC_SUBST(CXX_FLAG_DEPS) 313 314 # Debug symbols 315 if test "x$TOOLCHAIN_TYPE" = xgcc; then 316 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then 317 # reduce from default "-g2" option to save space 318 CFLAGS_DEBUG_SYMBOLS="-g1" 319 CXXFLAGS_DEBUG_SYMBOLS="-g1" 320 else 321 CFLAGS_DEBUG_SYMBOLS="-g" 322 CXXFLAGS_DEBUG_SYMBOLS="-g" 323 fi 324 elif test "x$TOOLCHAIN_TYPE" = xclang; then 325 CFLAGS_DEBUG_SYMBOLS="-g" 326 CXXFLAGS_DEBUG_SYMBOLS="-g" 327 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 328 CFLAGS_DEBUG_SYMBOLS="-g -xs" 329 # FIXME: likely a bug, this disables debug symbols rather than enables them 330 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs" 331 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 332 CFLAGS_DEBUG_SYMBOLS="-g" 333 CXXFLAGS_DEBUG_SYMBOLS="-g" 334 fi 335 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 336 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) 337 338 # bounds, memory and behavior checking options 339 if test "x$TOOLCHAIN_TYPE" = xgcc; then 340 case $DEBUG_LEVEL in 341 release ) 342 # no adjustment 343 ;; 344 fastdebug ) 345 # no adjustment 346 ;; 347 slowdebug ) 348 # Add runtime stack smashing and undefined behavior checks 349 CFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1" 350 CXXFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1" 351 ;; 352 esac 353 fi 354 AC_SUBST(CFLAGS_DEBUG_OPTIONS) 355 AC_SUBST(CXXFLAGS_DEBUG_OPTIONS) 356 357 # Optimization levels 358 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 359 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 360 361 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 362 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global? 363 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr" 364 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr" 365 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr" 366 C_O_FLAG_DEBUG="-xregs=no%frameptr" 367 C_O_FLAG_NONE="-xregs=no%frameptr" 368 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr" 369 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr" 370 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr" 371 CXX_O_FLAG_DEBUG="-xregs=no%frameptr" 372 CXX_O_FLAG_NONE="-xregs=no%frameptr" 373 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 374 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium" 375 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium" 376 fi 377 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 378 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra" 379 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 380 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 381 C_O_FLAG_DEBUG="" 382 C_O_FLAG_NONE="" 383 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra" 384 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 385 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 386 C_O_FLAG_DEBUG="" 387 CXX_O_FLAG_NONE="" 388 fi 389 else 390 # The remaining toolchains share opt flags between CC and CXX; 391 # setup for C and duplicate afterwards. 392 if test "x$TOOLCHAIN_TYPE" = xgcc; then 393 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 394 # On MacOSX we optimize for size, something 395 # we should do for all platforms? 396 C_O_FLAG_HIGHEST="-Os" 397 C_O_FLAG_HI="-Os" 398 C_O_FLAG_NORM="-Os" 399 else 400 C_O_FLAG_HIGHEST="-O3" 401 C_O_FLAG_HI="-O3" 402 C_O_FLAG_NORM="-O2" 403 fi 404 C_O_FLAG_DEBUG="-O0" 405 C_O_FLAG_NONE="-O0" 406 elif test "x$TOOLCHAIN_TYPE" = xclang; then 407 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 408 # On MacOSX we optimize for size, something 409 # we should do for all platforms? 410 C_O_FLAG_HIGHEST="-Os" 411 C_O_FLAG_HI="-Os" 412 C_O_FLAG_NORM="-Os" 413 else 414 C_O_FLAG_HIGHEST="-O3" 415 C_O_FLAG_HI="-O3" 416 C_O_FLAG_NORM="-O2" 417 fi 418 C_O_FLAG_DEBUG="-O0" 419 C_O_FLAG_NONE="-O0" 420 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 421 C_O_FLAG_HIGHEST="-O3" 422 C_O_FLAG_HI="-O3 -qstrict" 423 C_O_FLAG_NORM="-O2" 424 C_O_FLAG_DEBUG="-qnoopt" 425 C_O_FLAG_NONE="-qnoop" 426 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 427 C_O_FLAG_HIGHEST="-O2" 428 C_O_FLAG_HI="-O1" 429 C_O_FLAG_NORM="-O1" 430 C_O_FLAG_DEBUG="-Od" 431 C_O_FLAG_NONE="-Od" 432 fi 433 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 434 CXX_O_FLAG_HI="$C_O_FLAG_HI" 435 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 436 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" 437 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 438 fi 439 440 # Adjust optimization flags according to debug level. 441 case $DEBUG_LEVEL in 442 release ) 443 # no adjustment 444 ;; 445 fastdebug ) 446 # Not quite so much optimization 447 C_O_FLAG_HI="$C_O_FLAG_NORM" 448 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 449 ;; 450 slowdebug ) 451 # Disable optimization 452 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" 453 C_O_FLAG_HI="$C_O_FLAG_DEBUG" 454 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" 455 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" 456 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" 457 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" 458 ;; 459 esac 460 461 AC_SUBST(C_O_FLAG_HIGHEST) 462 AC_SUBST(C_O_FLAG_HI) 463 AC_SUBST(C_O_FLAG_NORM) 464 AC_SUBST(C_O_FLAG_DEBUG) 465 AC_SUBST(C_O_FLAG_NONE) 466 AC_SUBST(CXX_O_FLAG_HIGHEST) 467 AC_SUBST(CXX_O_FLAG_HI) 468 AC_SUBST(CXX_O_FLAG_NORM) 469 AC_SUBST(CXX_O_FLAG_DEBUG) 470 AC_SUBST(CXX_O_FLAG_NONE) 471]) 472 473AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK], 474[ 475 # Special extras... 476 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 477 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 478 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 479 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 480 fi 481 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 482 LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall" 483 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt" 484 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt" 485 fi 486 487 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then 488 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags]) 489 fi 490 491 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then 492 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags]) 493 fi 494 495 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then 496 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags]) 497 fi 498 499 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags], 500 [extra flags to be used when compiling jdk c-files])]) 501 502 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags], 503 [extra flags to be used when compiling jdk c++-files])]) 504 505 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags], 506 [extra flags to be used when linking jdk])]) 507 508 CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags" 509 CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags" 510 LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags" 511 512 # Hotspot needs these set in their legacy form 513 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags" 514 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags" 515 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags" 516 517 AC_SUBST(LEGACY_EXTRA_CFLAGS) 518 AC_SUBST(LEGACY_EXTRA_CXXFLAGS) 519 AC_SUBST(LEGACY_EXTRA_LDFLAGS) 520 521 ############################################################################### 522 # 523 # Now setup the CFLAGS and LDFLAGS for the JDK build. 524 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. 525 # 526 527 # Setup compiler/platform specific flags into 528 # CFLAGS_JDK - C Compiler flags 529 # CXXFLAGS_JDK - C++ Compiler flags 530 # COMMON_CCXXFLAGS_JDK - common to C and C++ 531 if test "x$TOOLCHAIN_TYPE" = xgcc; then 532 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wno-parentheses -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 533 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 534 case $OPENJDK_TARGET_CPU_ARCH in 535 arm ) 536 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing 537 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 538 ;; 539 ppc ) 540 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 541 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 542 ;; 543 * ) 544 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 545 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 546 ;; 547 esac 548 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 549 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 550 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 551 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB" 552 CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE" 553 fi 554 555 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal" 556 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib" 557 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 558 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 559 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 560 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 561 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Zi -MD -Zc:wchar_t- -W3 -wd4800 \ 562 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB -DWIN32_LEAN_AND_MEAN \ 563 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \ 564 -DWIN32 -DIAL" 565 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 566 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64" 567 else 568 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86" 569 fi 570 fi 571 572 ############################################################################### 573 574 # Adjust flags according to debug level. 575 case $DEBUG_LEVEL in 576 fastdebug | slowdebug ) 577 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS" 578 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS" 579 JAVAC_FLAGS="$JAVAC_FLAGS -g" 580 ;; 581 release ) 582 ;; 583 * ) 584 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 585 ;; 586 esac 587 588 # Setup LP64 589 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64" 590 591 # Set some common defines. These works for all compilers, but assume 592 # -D is universally accepted. 593 594 # Setup endianness 595 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then 596 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 597 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 598 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h). 599 # Note: -Dmacro is the same as #define macro 1 600 # -Dmacro= is the same as #define macro 601 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 602 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN=" 603 else 604 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN" 605 fi 606 else 607 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they 608 # are defined in the system? 609 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 610 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN=" 611 else 612 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN" 613 fi 614 fi 615 616 # Setup target OS define. Use OS target name but in upper case. 617 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 618 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 619 620 # Setup target CPU 621 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY" 622 623 # Setup debug/release defines 624 if test "x$DEBUG_LEVEL" = xrelease; then 625 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG" 626 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 627 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED" 628 fi 629 else 630 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG" 631 fi 632 633 # Setup release name 634 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'" 635 636 637 # Set some additional per-OS defines. 638 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 639 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 640 elif test "x$OPENJDK_TARGET_OS" = xaix; then 641 # FIXME: PPC64 should not be here. 642 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DPPC64" 643 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 644 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE" 645 fi 646 647 # Additional macosx handling 648 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 649 # Setting these parameters makes it an error to link to macosx APIs that are 650 # newer than the given OS version and makes the linked binaries compatible 651 # even if built on a newer version of the OS. 652 # The expected format is X.Y.Z 653 MACOSX_VERSION_MIN=10.7.0 654 AC_SUBST(MACOSX_VERSION_MIN) 655 656 # The macro takes the version with no dots, ex: 1070 657 # Let the flags variables get resolved in make for easier override on make 658 # command line. 659 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 660 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 661 fi 662 663 # Setup some hard coded includes 664 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \ 665 -I${JDK_TOPDIR}/src/java.base/share/native/include \ 666 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \ 667 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include" 668 669 # The shared libraries are compiled using the picflag. 670 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 671 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA " 672 673 # Executable flags 674 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 675 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 676 677 AC_SUBST(CFLAGS_JDKLIB) 678 AC_SUBST(CFLAGS_JDKEXE) 679 AC_SUBST(CXXFLAGS_JDKLIB) 680 AC_SUBST(CXXFLAGS_JDKEXE) 681 682 # Setup LDFLAGS et al. 683 # 684 685 # Now this is odd. The JDK native libraries have to link against libjvm.so 686 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server. 687 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library 688 # is identical for client and server? Yes. Which is picked at runtime (client or server)? 689 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following 690 # libraries will link to whatever is in memory. Yuck. 691 # 692 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh. 693 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 694 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no" 695 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 696 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh" 697 fi 698 # TODO: make -debug optional "--disable-full-debug-symbols" 699 LDFLAGS_JDK="$LDFLAGS_JDK -debug" 700 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 701 # If this is a --hash-style=gnu system, use --hash-style=both, why? 702 # We have previously set HAS_GNU_HASH if this is the case 703 if test -n "$HAS_GNU_HASH"; then 704 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both" 705 fi 706 if test "x$OPENJDK_TARGET_OS" = xlinux; then 707 # And since we now know that the linker is gnu, then add -z defs, to forbid 708 # undefined symbols in object files. 709 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs" 710 case $DEBUG_LEVEL in 711 release ) 712 # tell linker to optimize libraries. 713 # Should this be supplied to the OSS linker as well? 714 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1" 715 ;; 716 slowdebug ) 717 if test "x$HAS_LINKER_NOW" = "xtrue"; then 718 # do relocations at load 719 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_NOW_FLAG" 720 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_NOW_FLAG" 721 fi 722 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 723 # mark relocations read only 724 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 725 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 726 fi 727 ;; 728 fastdebug ) 729 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 730 # mark relocations read only 731 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 732 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 733 fi 734 ;; 735 * ) 736 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 737 ;; 738 esac 739 fi 740 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 741 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext" 742 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib" 743 fi 744 745 # Customize LDFLAGS for executables 746 747 LDFLAGS_JDKEXE="${LDFLAGS_JDK}" 748 749 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 750 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 751 LDFLAGS_STACK_SIZE=1048576 752 else 753 LDFLAGS_STACK_SIZE=327680 754 fi 755 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE" 756 elif test "x$OPENJDK_TARGET_OS" = xlinux; then 757 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined" 758 fi 759 760 # Customize LDFLAGS for libs 761 LDFLAGS_JDKLIB="${LDFLAGS_JDK}" 762 763 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 764 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -dll -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base" 765 LDFLAGS_JDKLIB_SUFFIX="" 766 else 767 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS} \ 768 -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}" 769 770 # On some platforms (mac) the linker warns about non existing -L dirs. 771 # Add server first if available. Linking aginst client does not always produce the same results. 772 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1. 773 # Default to server for other variants. 774 if test "x$JVM_VARIANT_SERVER" = xtrue; then 775 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 776 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then 777 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client" 778 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then 779 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal" 780 else 781 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 782 fi 783 784 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm" 785 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 786 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc" 787 fi 788 fi 789 790 AC_SUBST(LDFLAGS_JDKLIB) 791 AC_SUBST(LDFLAGS_JDKEXE) 792 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX) 793 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX) 794 AC_SUBST(LDFLAGS_CXX_JDK) 795]) 796 797# FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 798# [RUN-IF-FALSE]) 799# ------------------------------------------------------------ 800# Check that the c and c++ compilers support an argument 801AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS], 802[ 803 AC_MSG_CHECKING([if compiler supports "$1"]) 804 supports=yes 805 806 saved_cflags="$CFLAGS" 807 CFLAGS="$CFLAGS $1" 808 AC_LANG_PUSH([C]) 809 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 810 [supports=no]) 811 AC_LANG_POP([C]) 812 CFLAGS="$saved_cflags" 813 814 saved_cxxflags="$CXXFLAGS" 815 CXXFLAGS="$CXXFLAG $1" 816 AC_LANG_PUSH([C++]) 817 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 818 [supports=no]) 819 AC_LANG_POP([C++]) 820 CXXFLAGS="$saved_cxxflags" 821 822 AC_MSG_RESULT([$supports]) 823 if test "x$supports" = "xyes" ; then 824 m4_ifval([$2], [$2], [:]) 825 else 826 m4_ifval([$3], [$3], [:]) 827 fi 828]) 829 830# FLAGS_LINKER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 831# [RUN-IF-FALSE]) 832# ------------------------------------------------------------ 833# Check that the linker support an argument 834AC_DEFUN([FLAGS_LINKER_CHECK_ARGUMENTS], 835[ 836 AC_MSG_CHECKING([if linker supports "$1"]) 837 supports=yes 838 839 saved_ldflags="$LDFLAGS" 840 LDFLAGS="$LDFLAGS $1" 841 AC_LANG_PUSH([C]) 842 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], 843 [], [supports=no]) 844 AC_LANG_POP([C]) 845 LDFLAGS="$saved_ldflags" 846 847 AC_MSG_RESULT([$supports]) 848 if test "x$supports" = "xyes" ; then 849 m4_ifval([$2], [$2], [:]) 850 else 851 m4_ifval([$3], [$3], [:]) 852 fi 853]) 854 855AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC], 856[ 857 # Some Zero and Shark settings. 858 # ZERO_ARCHFLAG tells the compiler which mode to build for 859 case "${OPENJDK_TARGET_CPU}" in 860 s390) 861 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31" 862 ;; 863 *) 864 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 865 esac 866 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""]) 867 AC_SUBST(ZERO_ARCHFLAG) 868 869 # Check that the compiler supports -mX (or -qX on AIX) flags 870 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 871 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 872 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 873 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 874 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 875 876 case "${TOOLCHAIN_TYPE}" in 877 microsoft) 878 CFLAGS_WARNINGS_ARE_ERRORS="-WX" 879 ;; 880 solstudio) 881 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" 882 ;; 883 gcc) 884 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 885 ;; 886 clang) 887 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 888 ;; 889 esac 890 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 891]) 892