flags.m4 revision 1881:7847205df7f7
1# 2# Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved. 3# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4# 5# This code is free software; you can redistribute it and/or modify it 6# under the terms of the GNU General Public License version 2 only, as 7# published by the Free Software Foundation. Oracle designates this 8# particular file as subject to the "Classpath" exception as provided 9# by Oracle in the LICENSE file that accompanied this code. 10# 11# This code is distributed in the hope that it will be useful, but WITHOUT 12# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14# version 2 for more details (a copy is included in the LICENSE file that 15# accompanied this code). 16# 17# You should have received a copy of the GNU General Public License version 18# 2 along with this work; if not, write to the Free Software Foundation, 19# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20# 21# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22# or visit www.oracle.com if you need additional information or have any 23# questions. 24# 25 26# Reset the global CFLAGS/LDFLAGS variables and initialize them with the 27# corresponding configure arguments instead 28AC_DEFUN_ONCE([FLAGS_SETUP_USER_SUPPLIED_FLAGS], 29[ 30 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then 31 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags]) 32 fi 33 34 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then 35 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags]) 36 fi 37 38 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then 39 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags]) 40 fi 41 42 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags], 43 [extra flags to be used when compiling jdk c-files])]) 44 45 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags], 46 [extra flags to be used when compiling jdk c++-files])]) 47 48 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags], 49 [extra flags to be used when linking jdk])]) 50 51 EXTRA_CFLAGS="$with_extra_cflags" 52 EXTRA_CXXFLAGS="$with_extra_cxxflags" 53 EXTRA_LDFLAGS="$with_extra_ldflags" 54 55 # Hotspot needs these set in their legacy form 56 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $EXTRA_CFLAGS" 57 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $EXTRA_CXXFLAGS" 58 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $EXTRA_LDFLAGS" 59 60 AC_SUBST(LEGACY_EXTRA_CFLAGS) 61 AC_SUBST(LEGACY_EXTRA_CXXFLAGS) 62 AC_SUBST(LEGACY_EXTRA_LDFLAGS) 63 64 # The global CFLAGS and LDLAGS variables are used by configure tests and 65 # should include the extra parameters 66 CFLAGS="$EXTRA_CFLAGS" 67 CXXFLAGS="$EXTRA_CXXFLAGS" 68 LDFLAGS="$EXTRA_LDFLAGS" 69 CPPFLAGS="" 70]) 71 72# Setup the sysroot flags and add them to global CFLAGS and LDFLAGS so 73# that configure can use them while detecting compilers. 74# TOOLCHAIN_TYPE is available here. 75# Param 1 - Optional prefix to all variables. (e.g BUILD_) 76AC_DEFUN([FLAGS_SETUP_SYSROOT_FLAGS], 77[ 78 if test "x[$]$1SYSROOT" != "x"; then 79 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 80 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 81 # Solaris Studio does not have a concept of sysroot. Instead we must 82 # make sure the default include and lib dirs are appended to each 83 # compile and link command line. 84 $1SYSROOT_CFLAGS="-I[$]$1SYSROOT/usr/include" 85 $1SYSROOT_LDFLAGS="-L[$]$1SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \ 86 -L[$]$1SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \ 87 -L[$]$1SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR" 88 fi 89 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 90 $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT" 91 $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT" 92 elif test "x$TOOLCHAIN_TYPE" = xclang; then 93 $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT" 94 $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT" 95 fi 96 # Propagate the sysroot args to hotspot 97 $1LEGACY_EXTRA_CFLAGS="[$]$1LEGACY_EXTRA_CFLAGS [$]$1SYSROOT_CFLAGS" 98 $1LEGACY_EXTRA_CXXFLAGS="[$]$1LEGACY_EXTRA_CXXFLAGS [$]$1SYSROOT_CFLAGS" 99 $1LEGACY_EXTRA_LDFLAGS="[$]$1LEGACY_EXTRA_LDFLAGS [$]$1SYSROOT_LDFLAGS" 100 # The global CFLAGS and LDFLAGS variables need these for configure to function 101 $1CFLAGS="[$]$1CFLAGS [$]$1SYSROOT_CFLAGS" 102 $1CPPFLAGS="[$]$1CPPFLAGS [$]$1SYSROOT_CFLAGS" 103 $1CXXFLAGS="[$]$1CXXFLAGS [$]$1SYSROOT_CFLAGS" 104 $1LDFLAGS="[$]$1LDFLAGS [$]$1SYSROOT_LDFLAGS" 105 fi 106 107 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 108 # We also need -iframework<path>/System/Library/Frameworks 109 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 110 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 111 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework 112 # set this here so it doesn't have to be peppered throughout the forest 113 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 114 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 115 fi 116 117 AC_SUBST($1SYSROOT_CFLAGS) 118 AC_SUBST($1SYSROOT_LDFLAGS) 119]) 120 121AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS], 122[ 123 # COMPILER_TARGET_BITS_FLAG : option for selecting 32- or 64-bit output 124 # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler 125 if test "x$TOOLCHAIN_TYPE" = xxlc; then 126 COMPILER_TARGET_BITS_FLAG="-q" 127 COMPILER_COMMAND_FILE_FLAG="-f" 128 else 129 COMPILER_TARGET_BITS_FLAG="-m" 130 COMPILER_COMMAND_FILE_FLAG="@" 131 132 # The solstudio linker does not support @-files. 133 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 134 COMPILER_COMMAND_FILE_FLAG= 135 fi 136 137 # Check if @file is supported by gcc 138 if test "x$TOOLCHAIN_TYPE" = xgcc; then 139 AC_MSG_CHECKING([if @file is supported by gcc]) 140 # Extra emtpy "" to prevent ECHO from interpreting '--version' as argument 141 $ECHO "" "--version" > command.file 142 if $CXX @command.file 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then 143 AC_MSG_RESULT(yes) 144 COMPILER_COMMAND_FILE_FLAG="@" 145 else 146 AC_MSG_RESULT(no) 147 COMPILER_COMMAND_FILE_FLAG= 148 fi 149 rm -rf command.file 150 fi 151 fi 152 AC_SUBST(COMPILER_TARGET_BITS_FLAG) 153 AC_SUBST(COMPILER_COMMAND_FILE_FLAG) 154 155 # FIXME: figure out if we should select AR flags depending on OS or toolchain. 156 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 157 ARFLAGS="-r" 158 elif test "x$OPENJDK_TARGET_OS" = xaix; then 159 ARFLAGS="-X64" 160 elif test "x$OPENJDK_TARGET_OS" = xwindows; then 161 # lib.exe is used as AR to create static libraries. 162 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT" 163 else 164 ARFLAGS="" 165 fi 166 AC_SUBST(ARFLAGS) 167 168 ## Setup strip. 169 # FIXME: should this really be per platform, or should it be per toolchain type? 170 # strip is not provided by clang or solstudio; so guessing platform makes most sense. 171 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD. 172 if test "x$OPENJDK_TARGET_OS" = xlinux; then 173 STRIPFLAGS="-g" 174 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then 175 STRIPFLAGS="-x" 176 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 177 STRIPFLAGS="-S" 178 elif test "x$OPENJDK_TARGET_OS" = xaix; then 179 STRIPFLAGS="-X32_64" 180 fi 181 182 AC_SUBST(STRIPFLAGS) 183 184 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 185 CC_OUT_OPTION=-Fo 186 EXE_OUT_OPTION=-out: 187 LD_OUT_OPTION=-out: 188 AR_OUT_OPTION=-out: 189 else 190 # The option used to specify the target .o,.a or .so file. 191 # When compiling, how to specify the to be created object file. 192 CC_OUT_OPTION='-o$(SPACE)' 193 # When linking, how to specify the to be created executable. 194 EXE_OUT_OPTION='-o$(SPACE)' 195 # When linking, how to specify the to be created dynamically linkable library. 196 LD_OUT_OPTION='-o$(SPACE)' 197 # When archiving, how to specify the to be create static archive for object files. 198 AR_OUT_OPTION='rcs$(SPACE)' 199 fi 200 AC_SUBST(CC_OUT_OPTION) 201 AC_SUBST(EXE_OUT_OPTION) 202 AC_SUBST(LD_OUT_OPTION) 203 AC_SUBST(AR_OUT_OPTION) 204 205 # On Windows, we need to set RC flags. 206 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 207 RC_FLAGS="-nologo -l0x409" 208 if test "x$VARIANT" = xOPT; then 209 RC_FLAGS="$RC_FLAGS -DNDEBUG" 210 fi 211 212 # The version variables used to create RC_FLAGS may be overridden 213 # in a custom configure script, or possibly the command line. 214 # Let those variables be expanded at make time in spec.gmk. 215 # The \$ are escaped to the shell, and the $(...) variables 216 # are evaluated by make. 217 RC_FLAGS="$RC_FLAGS \ 218 -D\"JDK_VERSION_STRING=\$(VERSION_STRING)\" \ 219 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \ 220 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \ 221 -D\"JDK_VER=\$(VERSION_NUMBER)\" \ 222 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \ 223 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(VERSION_MAJOR)\" \ 224 -D\"JDK_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\"" 225 fi 226 AC_SUBST(RC_FLAGS) 227 228 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 229 # silence copyright notice and other headers. 230 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo" 231 fi 232]) 233 234AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS], 235[ 236 ############################################################################### 237 # 238 # How to compile shared libraries. 239 # 240 241 if test "x$TOOLCHAIN_TYPE" = xgcc; then 242 PICFLAG="-fPIC" 243 C_FLAG_REORDER='' 244 CXX_FLAG_REORDER='' 245 246 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 247 # Linking is different on MacOSX 248 if test "x$STATIC_BUILD" = xtrue; then 249 SHARED_LIBRARY_FLAGS ='-undefined dynamic_lookup' 250 else 251 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 252 fi 253 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.' 254 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 255 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' 256 SET_SHARED_LIBRARY_MAPFILE='' 257 else 258 # Default works for linux, might work on other platforms as well. 259 SHARED_LIBRARY_FLAGS='-shared' 260 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1' 261 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 262 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 263 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 264 fi 265 elif test "x$TOOLCHAIN_TYPE" = xclang; then 266 C_FLAG_REORDER='' 267 CXX_FLAG_REORDER='' 268 269 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 270 # Linking is different on MacOSX 271 PICFLAG='' 272 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 273 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.' 274 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 275 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' 276 SET_SHARED_LIBRARY_MAPFILE='' 277 else 278 # Default works for linux, might work on other platforms as well. 279 PICFLAG='-fPIC' 280 SHARED_LIBRARY_FLAGS='-shared' 281 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1' 282 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 283 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 284 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 285 fi 286 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 287 PICFLAG="-KPIC" 288 C_FLAG_REORDER='-xF' 289 CXX_FLAG_REORDER='-xF' 290 SHARED_LIBRARY_FLAGS="-G" 291 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1' 292 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 293 SET_SHARED_LIBRARY_NAME='-h [$]1' 294 SET_SHARED_LIBRARY_MAPFILE='-M[$]1' 295 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 296 PICFLAG="-qpic=large" 297 C_FLAG_REORDER='' 298 CXX_FLAG_REORDER='' 299 SHARED_LIBRARY_FLAGS="-qmkshrobj" 300 SET_EXECUTABLE_ORIGIN="" 301 SET_SHARED_LIBRARY_ORIGIN='' 302 SET_SHARED_LIBRARY_NAME='' 303 SET_SHARED_LIBRARY_MAPFILE='' 304 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 305 PICFLAG="" 306 C_FLAG_REORDER='' 307 CXX_FLAG_REORDER='' 308 SHARED_LIBRARY_FLAGS="-dll" 309 SET_EXECUTABLE_ORIGIN='' 310 SET_SHARED_LIBRARY_ORIGIN='' 311 SET_SHARED_LIBRARY_NAME='' 312 SET_SHARED_LIBRARY_MAPFILE='' 313 fi 314 315 AC_SUBST(C_FLAG_REORDER) 316 AC_SUBST(CXX_FLAG_REORDER) 317 AC_SUBST(SET_EXECUTABLE_ORIGIN) 318 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) 319 AC_SUBST(SET_SHARED_LIBRARY_NAME) 320 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) 321 AC_SUBST(SHARED_LIBRARY_FLAGS) 322 323 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 324 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__" 325 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__" 326 CFLAGS_JDKLIB_EXTRA='-xstrconst' 327 fi 328 # The (cross) compiler is now configured, we can now test capabilities 329 # of the target platform. 330]) 331 332# Documentation on common flags used for solstudio in HIGHEST. 333# 334# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be 335# done with care, there are some assumptions below that need to 336# be understood about the use of pointers, and IEEE behavior. 337# 338# -fns: Use non-standard floating point mode (not IEEE 754) 339# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) 340# -fsingle: Use single precision floating point with 'float' 341# -xalias_level=basic: Assume memory references via basic pointer types do not alias 342# (Source with excessing pointer casting and data access with mixed 343# pointer types are not recommended) 344# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions 345# (If you expect perfect errno behavior, do not use this) 346# -xdepend: Loop data dependency optimizations (need -xO3 or higher) 347# -xrestrict: Pointer parameters to functions do not overlap 348# (Similar to -xalias_level=basic usage, but less obvious sometimes. 349# If you pass in multiple pointers to the same data, do not use this) 350# -xlibmil: Inline some library routines 351# (If you expect perfect errno behavior, do not use this) 352# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) 353# (If you expect perfect errno behavior, do not use this) 354# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now 355 356 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore. 357 # Bug? 358 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then 359 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s" 360 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s" 361 #fi 362 363AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION], 364[ 365 366 ############################################################################### 367 # 368 # Setup the opt flags for different compilers 369 # and different operating systems. 370 # 371 372 # FIXME: this was indirectly the old default, but just inherited. 373 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 374 # C_FLAG_DEPS="-MMD -MF" 375 # fi 376 377 # Generate make dependency files 378 if test "x$TOOLCHAIN_TYPE" = xgcc; then 379 C_FLAG_DEPS="-MMD -MF" 380 elif test "x$TOOLCHAIN_TYPE" = xclang; then 381 C_FLAG_DEPS="-MMD -MF" 382 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 383 C_FLAG_DEPS="-xMMD -xMF" 384 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 385 C_FLAG_DEPS="-qmakedep=gcc -MF" 386 fi 387 CXX_FLAG_DEPS="$C_FLAG_DEPS" 388 AC_SUBST(C_FLAG_DEPS) 389 AC_SUBST(CXX_FLAG_DEPS) 390 391 # Debug symbols 392 if test "x$TOOLCHAIN_TYPE" = xgcc; then 393 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then 394 # reduce from default "-g2" option to save space 395 CFLAGS_DEBUG_SYMBOLS="-g1" 396 CXXFLAGS_DEBUG_SYMBOLS="-g1" 397 else 398 CFLAGS_DEBUG_SYMBOLS="-g" 399 CXXFLAGS_DEBUG_SYMBOLS="-g" 400 fi 401 elif test "x$TOOLCHAIN_TYPE" = xclang; then 402 CFLAGS_DEBUG_SYMBOLS="-g" 403 CXXFLAGS_DEBUG_SYMBOLS="-g" 404 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 405 CFLAGS_DEBUG_SYMBOLS="-g -xs" 406 # FIXME: likely a bug, this disables debug symbols rather than enables them 407 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs" 408 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 409 CFLAGS_DEBUG_SYMBOLS="-g" 410 CXXFLAGS_DEBUG_SYMBOLS="-g" 411 fi 412 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 413 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) 414 415 # bounds, memory and behavior checking options 416 if test "x$TOOLCHAIN_TYPE" = xgcc; then 417 case $DEBUG_LEVEL in 418 release ) 419 # no adjustment 420 ;; 421 fastdebug ) 422 # no adjustment 423 ;; 424 slowdebug ) 425 # Add runtime stack smashing and undefined behavior checks. 426 # Not all versions of gcc support -fstack-protector 427 STACK_PROTECTOR_CFLAG="-fstack-protector-all" 428 FLAGS_COMPILER_CHECK_ARGUMENTS([$STACK_PROTECTOR_CFLAG], [], [STACK_PROTECTOR_CFLAG=""]) 429 430 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 431 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 432 ;; 433 esac 434 fi 435 436 # Optimization levels 437 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 438 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 439 440 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 441 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global? 442 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr" 443 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr" 444 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr" 445 C_O_FLAG_DEBUG="-xregs=no%frameptr" 446 C_O_FLAG_NONE="-xregs=no%frameptr" 447 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr" 448 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr" 449 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr" 450 CXX_O_FLAG_DEBUG="-xregs=no%frameptr" 451 CXX_O_FLAG_NONE="-xregs=no%frameptr" 452 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 453 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium" 454 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium" 455 fi 456 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 457 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra" 458 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 459 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 460 C_O_FLAG_DEBUG="" 461 C_O_FLAG_NONE="" 462 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra" 463 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 464 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 465 C_O_FLAG_DEBUG="" 466 CXX_O_FLAG_NONE="" 467 fi 468 else 469 # The remaining toolchains share opt flags between CC and CXX; 470 # setup for C and duplicate afterwards. 471 if test "x$TOOLCHAIN_TYPE" = xgcc; then 472 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 473 # On MacOSX we optimize for size, something 474 # we should do for all platforms? 475 C_O_FLAG_HIGHEST="-Os" 476 C_O_FLAG_HI="-Os" 477 C_O_FLAG_NORM="-Os" 478 else 479 C_O_FLAG_HIGHEST="-O3" 480 C_O_FLAG_HI="-O3" 481 C_O_FLAG_NORM="-O2" 482 fi 483 C_O_FLAG_DEBUG="-O0" 484 C_O_FLAG_NONE="-O0" 485 elif test "x$TOOLCHAIN_TYPE" = xclang; then 486 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 487 # On MacOSX we optimize for size, something 488 # we should do for all platforms? 489 C_O_FLAG_HIGHEST="-Os" 490 C_O_FLAG_HI="-Os" 491 C_O_FLAG_NORM="-Os" 492 else 493 C_O_FLAG_HIGHEST="-O3" 494 C_O_FLAG_HI="-O3" 495 C_O_FLAG_NORM="-O2" 496 fi 497 C_O_FLAG_DEBUG="-O0" 498 C_O_FLAG_NONE="-O0" 499 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 500 C_O_FLAG_HIGHEST="-O3" 501 C_O_FLAG_HI="-O3 -qstrict" 502 C_O_FLAG_NORM="-O2" 503 C_O_FLAG_DEBUG="-qnoopt" 504 C_O_FLAG_NONE="-qnoopt" 505 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 506 C_O_FLAG_HIGHEST="-O2" 507 C_O_FLAG_HI="-O1" 508 C_O_FLAG_NORM="-O1" 509 C_O_FLAG_DEBUG="-Od" 510 C_O_FLAG_NONE="-Od" 511 fi 512 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 513 CXX_O_FLAG_HI="$C_O_FLAG_HI" 514 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 515 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" 516 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 517 fi 518 519 # Adjust optimization flags according to debug level. 520 case $DEBUG_LEVEL in 521 release ) 522 # no adjustment 523 ;; 524 fastdebug ) 525 # Not quite so much optimization 526 C_O_FLAG_HI="$C_O_FLAG_NORM" 527 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 528 ;; 529 slowdebug ) 530 # Disable optimization 531 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" 532 C_O_FLAG_HI="$C_O_FLAG_DEBUG" 533 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" 534 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" 535 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" 536 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" 537 ;; 538 esac 539 540 AC_SUBST(C_O_FLAG_HIGHEST) 541 AC_SUBST(C_O_FLAG_HI) 542 AC_SUBST(C_O_FLAG_NORM) 543 AC_SUBST(C_O_FLAG_DEBUG) 544 AC_SUBST(C_O_FLAG_NONE) 545 AC_SUBST(CXX_O_FLAG_HIGHEST) 546 AC_SUBST(CXX_O_FLAG_HI) 547 AC_SUBST(CXX_O_FLAG_NORM) 548 AC_SUBST(CXX_O_FLAG_DEBUG) 549 AC_SUBST(CXX_O_FLAG_NONE) 550]) 551 552AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK], 553[ 554 # Special extras... 555 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 556 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 557 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 558 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 559 fi 560 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 561 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 562 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 563 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 564 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 565 fi 566 567 CFLAGS_JDK="${CFLAGS_JDK} $EXTRA_CFLAGS" 568 CXXFLAGS_JDK="${CXXFLAGS_JDK} $EXTRA_CXXFLAGS" 569 LDFLAGS_JDK="${LDFLAGS_JDK} $EXTRA_LDFLAGS" 570 571 ############################################################################### 572 # 573 # Now setup the CFLAGS and LDFLAGS for the JDK build. 574 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. 575 # 576 577 # Setup compiler/platform specific flags into 578 # CFLAGS_JDK - C Compiler flags 579 # CXXFLAGS_JDK - C++ Compiler flags 580 # COMMON_CCXXFLAGS_JDK - common to C and C++ 581 if test "x$TOOLCHAIN_TYPE" = xgcc; then 582 if test "x$OPENJDK_TARGET_CPU" = xx86; then 583 # Force compatibility with i586 on 32 bit intel platforms. 584 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586" 585 fi 586 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 587 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 588 case $OPENJDK_TARGET_CPU_ARCH in 589 arm ) 590 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing 591 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 592 ;; 593 ppc ) 594 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 595 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 596 ;; 597 * ) 598 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 599 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 600 ;; 601 esac 602 elif test "x$TOOLCHAIN_TYPE" = xclang; then 603 if test "x$OPENJDK_TARGET_OS" = xlinux; then 604 if test "x$OPENJDK_TARGET_CPU" = xx86; then 605 # Force compatibility with i586 on 32 bit intel platforms. 606 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586" 607 fi 608 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 609 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 610 case $OPENJDK_TARGET_CPU_ARCH in 611 ppc ) 612 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 613 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 614 ;; 615 * ) 616 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 617 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 618 ;; 619 esac 620 fi 621 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 622 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 623 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 624 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB" 625 fi 626 627 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal" 628 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib" 629 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 630 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 631 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 632 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 633 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK \ 634 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \ 635 -DWIN32_LEAN_AND_MEAN \ 636 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \ 637 -D_WINSOCK_DEPRECATED_NO_WARNINGS \ 638 -DWIN32 -DIAL" 639 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 640 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64" 641 else 642 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86" 643 fi 644 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to 645 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual 646 # studio. 647 if test "x$TOOLCHAIN_VERSION" = "x2010"; then 648 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \ 649 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB" 650 fi 651 fi 652 653 ############################################################################### 654 655 # Adjust flags according to debug level. 656 case $DEBUG_LEVEL in 657 fastdebug | slowdebug ) 658 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS" 659 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS" 660 JAVAC_FLAGS="$JAVAC_FLAGS -g" 661 ;; 662 release ) 663 ;; 664 * ) 665 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 666 ;; 667 esac 668 669 # Setup LP64 670 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64" 671 672 # Set some common defines. These works for all compilers, but assume 673 # -D is universally accepted. 674 675 # Setup endianness 676 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then 677 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 678 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 679 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h). 680 # Note: -Dmacro is the same as #define macro 1 681 # -Dmacro= is the same as #define macro 682 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 683 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN=" 684 else 685 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN" 686 fi 687 else 688 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they 689 # are defined in the system? 690 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 691 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN=" 692 else 693 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN" 694 fi 695 fi 696 697 # Setup target OS define. Use OS target name but in upper case. 698 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 699 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 700 701 # Setup target CPU 702 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY" 703 704 # Setup debug/release defines 705 if test "x$DEBUG_LEVEL" = xrelease; then 706 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG" 707 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 708 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED" 709 fi 710 else 711 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG" 712 fi 713 714 # Set some additional per-OS defines. 715 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 716 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 717 elif test "x$OPENJDK_TARGET_OS" = xaix; then 718 # FIXME: PPC64 should not be here. 719 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DPPC64" 720 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 721 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE" 722 fi 723 724 # Additional macosx handling 725 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 726 # Setting these parameters makes it an error to link to macosx APIs that are 727 # newer than the given OS version and makes the linked binaries compatible 728 # even if built on a newer version of the OS. 729 # The expected format is X.Y.Z 730 MACOSX_VERSION_MIN=10.7.0 731 AC_SUBST(MACOSX_VERSION_MIN) 732 733 # The macro takes the version with no dots, ex: 1070 734 # Let the flags variables get resolved in make for easier override on make 735 # command line. 736 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 737 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 738 fi 739 740 # Setup some hard coded includes 741 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \ 742 -I${JDK_TOPDIR}/src/java.base/share/native/include \ 743 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \ 744 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include \ 745 -I${JDK_TOPDIR}/src/java.base/share/native/libjava \ 746 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava" 747 748 # The shared libraries are compiled using the picflag. 749 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 750 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 751 752 # Executable flags 753 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 754 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 755 756 AC_SUBST(CFLAGS_JDKLIB) 757 AC_SUBST(CFLAGS_JDKEXE) 758 AC_SUBST(CXXFLAGS_JDKLIB) 759 AC_SUBST(CXXFLAGS_JDKEXE) 760 761 # Flags for compiling test libraries 762 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 763 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 764 765 # Flags for compiling test executables 766 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 767 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 768 769 AC_SUBST(CFLAGS_TESTLIB) 770 AC_SUBST(CFLAGS_TESTEXE) 771 AC_SUBST(CXXFLAGS_TESTLIB) 772 AC_SUBST(CXXFLAGS_TESTEXE) 773 774 # Setup LDFLAGS et al. 775 # 776 777 # Now this is odd. The JDK native libraries have to link against libjvm.so 778 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server. 779 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library 780 # is identical for client and server? Yes. Which is picked at runtime (client or server)? 781 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following 782 # libraries will link to whatever is in memory. Yuck. 783 # 784 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh. 785 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 786 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no" 787 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 788 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh" 789 fi 790 # TODO: make -debug optional "--disable-full-debug-symbols" 791 LDFLAGS_JDK="$LDFLAGS_JDK -debug" 792 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 793 # If this is a --hash-style=gnu system, use --hash-style=both, why? 794 # We have previously set HAS_GNU_HASH if this is the case 795 if test -n "$HAS_GNU_HASH"; then 796 LDFLAGS_JDK="${LDFLAGS_JDK} -Wl,--hash-style=both" 797 fi 798 if test "x$OPENJDK_TARGET_OS" = xlinux; then 799 # And since we now know that the linker is gnu, then add -z defs, to forbid 800 # undefined symbols in object files. 801 LDFLAGS_JDK="${LDFLAGS_JDK} -Wl,-z,defs" 802 case $DEBUG_LEVEL in 803 release ) 804 # tell linker to optimize libraries. 805 # Should this be supplied to the OSS linker as well? 806 LDFLAGS_JDK="${LDFLAGS_JDK} -Wl,-O1" 807 ;; 808 slowdebug ) 809 if test "x$HAS_LINKER_NOW" = "xtrue"; then 810 # do relocations at load 811 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_NOW_FLAG" 812 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_NOW_FLAG" 813 fi 814 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 815 # mark relocations read only 816 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 817 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 818 fi 819 ;; 820 fastdebug ) 821 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 822 # mark relocations read only 823 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 824 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 825 fi 826 ;; 827 * ) 828 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 829 ;; 830 esac 831 fi 832 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 833 LDFLAGS_JDK="$LDFLAGS_JDK -Wl,-z,defs -xildoff -ztext" 834 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib" 835 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 836 LDFLAGS_JDK="${LDFLAGS_JDK} -brtl -bnolibpath -bexpall -bernotok" 837 fi 838 839 # Customize LDFLAGS for executables 840 841 LDFLAGS_JDKEXE="${LDFLAGS_JDK}" 842 843 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 844 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 845 LDFLAGS_STACK_SIZE=1048576 846 else 847 LDFLAGS_STACK_SIZE=327680 848 fi 849 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE" 850 elif test "x$OPENJDK_TARGET_OS" = xlinux; then 851 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Wl,--allow-shlib-undefined" 852 fi 853 854 # Customize LDFLAGS for libs 855 LDFLAGS_JDKLIB="${LDFLAGS_JDK}" 856 857 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS}" 858 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 859 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \ 860 -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base" 861 JDKLIB_LIBS="" 862 else 863 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \ 864 -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}" 865 866 # On some platforms (mac) the linker warns about non existing -L dirs. 867 # Add server first if available. Linking aginst client does not always produce the same results. 868 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1. 869 # Default to server for other variants. 870 if test "x$JVM_VARIANT_SERVER" = xtrue; then 871 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 872 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then 873 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client" 874 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then 875 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal" 876 else 877 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 878 fi 879 880 JDKLIB_LIBS="-ljava -ljvm" 881 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 882 JDKLIB_LIBS="$JDKLIB_LIBS -lc" 883 fi 884 fi 885 886 AC_SUBST(LDFLAGS_JDKLIB) 887 AC_SUBST(LDFLAGS_JDKEXE) 888 AC_SUBST(JDKLIB_LIBS) 889 AC_SUBST(JDKEXE_LIBS) 890 AC_SUBST(LDFLAGS_CXX_JDK) 891 892 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB" 893 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE" 894 895 AC_SUBST(LDFLAGS_TESTLIB) 896 AC_SUBST(LDFLAGS_TESTEXE) 897]) 898 899# FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 900# [RUN-IF-FALSE]) 901# ------------------------------------------------------------ 902# Check that the c and c++ compilers support an argument 903AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS], 904[ 905 AC_MSG_CHECKING([if compiler supports "$1"]) 906 supports=yes 907 908 saved_cflags="$CFLAGS" 909 CFLAGS="$CFLAGS $1" 910 AC_LANG_PUSH([C]) 911 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 912 [supports=no]) 913 AC_LANG_POP([C]) 914 CFLAGS="$saved_cflags" 915 916 saved_cxxflags="$CXXFLAGS" 917 CXXFLAGS="$CXXFLAG $1" 918 AC_LANG_PUSH([C++]) 919 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 920 [supports=no]) 921 AC_LANG_POP([C++]) 922 CXXFLAGS="$saved_cxxflags" 923 924 AC_MSG_RESULT([$supports]) 925 if test "x$supports" = "xyes" ; then 926 m4_ifval([$2], [$2], [:]) 927 else 928 m4_ifval([$3], [$3], [:]) 929 fi 930]) 931 932# FLAGS_LINKER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE], 933# [RUN-IF-FALSE]) 934# ------------------------------------------------------------ 935# Check that the linker support an argument 936AC_DEFUN([FLAGS_LINKER_CHECK_ARGUMENTS], 937[ 938 AC_MSG_CHECKING([if linker supports "$1"]) 939 supports=yes 940 941 saved_ldflags="$LDFLAGS" 942 LDFLAGS="$LDFLAGS $1" 943 AC_LANG_PUSH([C]) 944 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], 945 [], [supports=no]) 946 AC_LANG_POP([C]) 947 LDFLAGS="$saved_ldflags" 948 949 AC_MSG_RESULT([$supports]) 950 if test "x$supports" = "xyes" ; then 951 m4_ifval([$2], [$2], [:]) 952 else 953 m4_ifval([$3], [$3], [:]) 954 fi 955]) 956 957AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC], 958[ 959 # Some Zero and Shark settings. 960 # ZERO_ARCHFLAG tells the compiler which mode to build for 961 case "${OPENJDK_TARGET_CPU}" in 962 s390) 963 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31" 964 ;; 965 *) 966 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 967 esac 968 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""]) 969 AC_SUBST(ZERO_ARCHFLAG) 970 971 # Check that the compiler supports -mX (or -qX on AIX) flags 972 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 973 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 974 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 975 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 976 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 977 978 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors], 979 [do not consider native warnings to be an error @<:@enabled@:>@])]) 980 981 AC_MSG_CHECKING([if native warnings are errors]) 982 if test "x$enable_warnings_as_errors" = "xyes"; then 983 AC_MSG_RESULT([yes (explicitely set)]) 984 WARNINGS_AS_ERRORS=true 985 elif test "x$enable_warnings_as_errors" = "xno"; then 986 AC_MSG_RESULT([no]) 987 WARNINGS_AS_ERRORS=false 988 elif test "x$enable_warnings_as_errors" = "x"; then 989 AC_MSG_RESULT([yes (default)]) 990 WARNINGS_AS_ERRORS=true 991 else 992 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument]) 993 fi 994 995 if test "x$WARNINGS_AS_ERRORS" = "xfalse"; then 996 # Set legacy hotspot variable 997 HOTSPOT_SET_WARNINGS_AS_ERRORS="WARNINGS_ARE_ERRORS=" 998 else 999 HOTSPOT_SET_WARNINGS_AS_ERRORS="" 1000 fi 1001 1002 AC_SUBST(WARNINGS_AS_ERRORS) 1003 AC_SUBST(HOTSPOT_SET_WARNINGS_AS_ERRORS) 1004 1005 case "${TOOLCHAIN_TYPE}" in 1006 microsoft) 1007 DISABLE_WARNING_PREFIX="-wd" 1008 CFLAGS_WARNINGS_ARE_ERRORS="-WX" 1009 ;; 1010 solstudio) 1011 DISABLE_WARNING_PREFIX="-erroff=" 1012 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" 1013 ;; 1014 gcc) 1015 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error 1016 FLAGS_COMPILER_CHECK_ARGUMENTS([-Wno-this-is-a-warning-that-do-not-exist], 1017 [GCC_CAN_DISABLE_WARNINGS=true], 1018 [GCC_CAN_DISABLE_WARNINGS=false] 1019 ) 1020 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1021 DISABLE_WARNING_PREFIX="-Wno-" 1022 else 1023 DISABLE_WARNING_PREFIX= 1024 fi 1025 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1026 # Repeate the check for the BUILD_CC 1027 CC_OLD="$CC" 1028 CC="$BUILD_CC" 1029 FLAGS_COMPILER_CHECK_ARGUMENTS([-Wno-this-is-a-warning-that-do-not-exist], 1030 [BUILD_CC_CAN_DISABLE_WARNINGS=true], 1031 [BUILD_CC_CAN_DISABLE_WARNINGS=false] 1032 ) 1033 if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1034 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" 1035 else 1036 BUILD_CC_DISABLE_WARNING_PREFIX= 1037 fi 1038 CC="$CC_OLD" 1039 ;; 1040 clang) 1041 DISABLE_WARNING_PREFIX="-Wno-" 1042 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1043 ;; 1044 esac 1045 AC_SUBST(DISABLE_WARNING_PREFIX) 1046 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 1047]) 1048