flags.m4 revision 1922:be58b02c11f9
1# 2# Copyright (c) 2011, 2016, 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. Must also add -I-xbuiltin to enable 84 # inlining of system functions and intrinsics. 85 $1SYSROOT_CFLAGS="-I-xbuiltin -I[$]$1SYSROOT/usr/include" 86 $1SYSROOT_LDFLAGS="-L[$]$1SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \ 87 -L[$]$1SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \ 88 -L[$]$1SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR" 89 fi 90 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 91 $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT" 92 $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT" 93 elif test "x$TOOLCHAIN_TYPE" = xclang; then 94 $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT" 95 $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT" 96 fi 97 # Propagate the sysroot args to hotspot 98 $1LEGACY_EXTRA_CFLAGS="[$]$1LEGACY_EXTRA_CFLAGS [$]$1SYSROOT_CFLAGS" 99 $1LEGACY_EXTRA_CXXFLAGS="[$]$1LEGACY_EXTRA_CXXFLAGS [$]$1SYSROOT_CFLAGS" 100 $1LEGACY_EXTRA_LDFLAGS="[$]$1LEGACY_EXTRA_LDFLAGS [$]$1SYSROOT_LDFLAGS" 101 # The global CFLAGS and LDFLAGS variables need these for configure to function 102 $1CFLAGS="[$]$1CFLAGS [$]$1SYSROOT_CFLAGS" 103 $1CPPFLAGS="[$]$1CPPFLAGS [$]$1SYSROOT_CFLAGS" 104 $1CXXFLAGS="[$]$1CXXFLAGS [$]$1SYSROOT_CFLAGS" 105 $1LDFLAGS="[$]$1LDFLAGS [$]$1SYSROOT_LDFLAGS" 106 fi 107 108 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 109 # We also need -iframework<path>/System/Library/Frameworks 110 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 111 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 112 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework 113 # set this here so it doesn't have to be peppered throughout the forest 114 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 115 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 116 fi 117 118 AC_SUBST($1SYSROOT_CFLAGS) 119 AC_SUBST($1SYSROOT_LDFLAGS) 120]) 121 122AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS], 123[ 124 # COMPILER_TARGET_BITS_FLAG : option for selecting 32- or 64-bit output 125 # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler 126 if test "x$TOOLCHAIN_TYPE" = xxlc; then 127 COMPILER_TARGET_BITS_FLAG="-q" 128 COMPILER_COMMAND_FILE_FLAG="-f" 129 else 130 COMPILER_TARGET_BITS_FLAG="-m" 131 COMPILER_COMMAND_FILE_FLAG="@" 132 133 # The solstudio linker does not support @-files. 134 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 135 COMPILER_COMMAND_FILE_FLAG= 136 fi 137 138 # Check if @file is supported by gcc 139 if test "x$TOOLCHAIN_TYPE" = xgcc; then 140 AC_MSG_CHECKING([if @file is supported by gcc]) 141 # Extra emtpy "" to prevent ECHO from interpreting '--version' as argument 142 $ECHO "" "--version" > command.file 143 if $CXX @command.file 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then 144 AC_MSG_RESULT(yes) 145 COMPILER_COMMAND_FILE_FLAG="@" 146 else 147 AC_MSG_RESULT(no) 148 COMPILER_COMMAND_FILE_FLAG= 149 fi 150 rm -rf command.file 151 fi 152 fi 153 AC_SUBST(COMPILER_TARGET_BITS_FLAG) 154 AC_SUBST(COMPILER_COMMAND_FILE_FLAG) 155 156 # FIXME: figure out if we should select AR flags depending on OS or toolchain. 157 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 158 ARFLAGS="-r" 159 elif test "x$OPENJDK_TARGET_OS" = xaix; then 160 ARFLAGS="-X64" 161 elif test "x$OPENJDK_TARGET_OS" = xwindows; then 162 # lib.exe is used as AR to create static libraries. 163 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT" 164 else 165 ARFLAGS="" 166 fi 167 AC_SUBST(ARFLAGS) 168 169 ## Setup strip. 170 # FIXME: should this really be per platform, or should it be per toolchain type? 171 # strip is not provided by clang or solstudio; so guessing platform makes most sense. 172 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD. 173 if test "x$OPENJDK_TARGET_OS" = xlinux; then 174 STRIPFLAGS="-g" 175 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then 176 STRIPFLAGS="-x" 177 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 178 STRIPFLAGS="-S" 179 elif test "x$OPENJDK_TARGET_OS" = xaix; then 180 STRIPFLAGS="-X32_64" 181 fi 182 183 AC_SUBST(STRIPFLAGS) 184 185 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 186 CC_OUT_OPTION=-Fo 187 EXE_OUT_OPTION=-out: 188 LD_OUT_OPTION=-out: 189 AR_OUT_OPTION=-out: 190 else 191 # The option used to specify the target .o,.a or .so file. 192 # When compiling, how to specify the to be created object file. 193 CC_OUT_OPTION='-o$(SPACE)' 194 # When linking, how to specify the to be created executable. 195 EXE_OUT_OPTION='-o$(SPACE)' 196 # When linking, how to specify the to be created dynamically linkable library. 197 LD_OUT_OPTION='-o$(SPACE)' 198 # When archiving, how to specify the to be create static archive for object files. 199 AR_OUT_OPTION='rcs$(SPACE)' 200 fi 201 AC_SUBST(CC_OUT_OPTION) 202 AC_SUBST(EXE_OUT_OPTION) 203 AC_SUBST(LD_OUT_OPTION) 204 AC_SUBST(AR_OUT_OPTION) 205 206 # On Windows, we need to set RC flags. 207 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 208 RC_FLAGS="-nologo -l0x409" 209 if test "x$VARIANT" = xOPT; then 210 RC_FLAGS="$RC_FLAGS -DNDEBUG" 211 fi 212 213 # The version variables used to create RC_FLAGS may be overridden 214 # in a custom configure script, or possibly the command line. 215 # Let those variables be expanded at make time in spec.gmk. 216 # The \$ are escaped to the shell, and the $(...) variables 217 # are evaluated by make. 218 RC_FLAGS="$RC_FLAGS \ 219 -D\"JDK_VERSION_STRING=\$(VERSION_STRING)\" \ 220 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \ 221 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \ 222 -D\"JDK_VER=\$(VERSION_NUMBER)\" \ 223 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \ 224 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(VERSION_MAJOR)\" \ 225 -D\"JDK_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\"" 226 fi 227 AC_SUBST(RC_FLAGS) 228 229 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 230 # silence copyright notice and other headers. 231 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo" 232 fi 233]) 234 235AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS], 236[ 237 ############################################################################### 238 # 239 # How to compile shared libraries. 240 # 241 242 if test "x$TOOLCHAIN_TYPE" = xgcc; then 243 PICFLAG="-fPIC" 244 C_FLAG_REORDER='' 245 CXX_FLAG_REORDER='' 246 247 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 248 # Linking is different on MacOSX 249 if test "x$STATIC_BUILD" = xtrue; then 250 SHARED_LIBRARY_FLAGS ='-undefined dynamic_lookup' 251 else 252 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 253 fi 254 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.' 255 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 256 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' 257 SET_SHARED_LIBRARY_MAPFILE='' 258 else 259 # Default works for linux, might work on other platforms as well. 260 SHARED_LIBRARY_FLAGS='-shared' 261 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1' 262 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 263 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 264 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 265 fi 266 elif test "x$TOOLCHAIN_TYPE" = xclang; then 267 C_FLAG_REORDER='' 268 CXX_FLAG_REORDER='' 269 270 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 271 # Linking is different on MacOSX 272 PICFLAG='' 273 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 274 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.' 275 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 276 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' 277 SET_SHARED_LIBRARY_MAPFILE='' 278 else 279 # Default works for linux, might work on other platforms as well. 280 PICFLAG='-fPIC' 281 SHARED_LIBRARY_FLAGS='-shared' 282 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1' 283 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 284 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 285 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 286 fi 287 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 288 PICFLAG="-KPIC" 289 C_FLAG_REORDER='-xF' 290 CXX_FLAG_REORDER='-xF' 291 SHARED_LIBRARY_FLAGS="-G" 292 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1' 293 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 294 SET_SHARED_LIBRARY_NAME='-h [$]1' 295 SET_SHARED_LIBRARY_MAPFILE='-M[$]1' 296 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 297 PICFLAG="-qpic=large" 298 C_FLAG_REORDER='' 299 CXX_FLAG_REORDER='' 300 SHARED_LIBRARY_FLAGS="-qmkshrobj" 301 SET_EXECUTABLE_ORIGIN="" 302 SET_SHARED_LIBRARY_ORIGIN='' 303 SET_SHARED_LIBRARY_NAME='' 304 SET_SHARED_LIBRARY_MAPFILE='' 305 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 306 PICFLAG="" 307 C_FLAG_REORDER='' 308 CXX_FLAG_REORDER='' 309 SHARED_LIBRARY_FLAGS="-dll" 310 SET_EXECUTABLE_ORIGIN='' 311 SET_SHARED_LIBRARY_ORIGIN='' 312 SET_SHARED_LIBRARY_NAME='' 313 SET_SHARED_LIBRARY_MAPFILE='' 314 fi 315 316 AC_SUBST(C_FLAG_REORDER) 317 AC_SUBST(CXX_FLAG_REORDER) 318 AC_SUBST(SET_EXECUTABLE_ORIGIN) 319 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) 320 AC_SUBST(SET_SHARED_LIBRARY_NAME) 321 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) 322 AC_SUBST(SHARED_LIBRARY_FLAGS) 323 324 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 325 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__" 326 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__" 327 CFLAGS_JDKLIB_EXTRA='-xstrconst' 328 fi 329 # The (cross) compiler is now configured, we can now test capabilities 330 # of the target platform. 331]) 332 333# Documentation on common flags used for solstudio in HIGHEST. 334# 335# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be 336# done with care, there are some assumptions below that need to 337# be understood about the use of pointers, and IEEE behavior. 338# 339# -fns: Use non-standard floating point mode (not IEEE 754) 340# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) 341# -fsingle: Use single precision floating point with 'float' 342# -xalias_level=basic: Assume memory references via basic pointer types do not alias 343# (Source with excessing pointer casting and data access with mixed 344# pointer types are not recommended) 345# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions 346# (If you expect perfect errno behavior, do not use this) 347# -xdepend: Loop data dependency optimizations (need -xO3 or higher) 348# -xrestrict: Pointer parameters to functions do not overlap 349# (Similar to -xalias_level=basic usage, but less obvious sometimes. 350# If you pass in multiple pointers to the same data, do not use this) 351# -xlibmil: Inline some library routines 352# (If you expect perfect errno behavior, do not use this) 353# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) 354# (If you expect perfect errno behavior, do not use this) 355# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now 356 357 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore. 358 # Bug? 359 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then 360 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s" 361 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s" 362 #fi 363 364AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION], 365[ 366 367 ############################################################################### 368 # 369 # Setup the opt flags for different compilers 370 # and different operating systems. 371 # 372 373 # FIXME: this was indirectly the old default, but just inherited. 374 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 375 # C_FLAG_DEPS="-MMD -MF" 376 # fi 377 378 # Generate make dependency files 379 if test "x$TOOLCHAIN_TYPE" = xgcc; then 380 C_FLAG_DEPS="-MMD -MF" 381 elif test "x$TOOLCHAIN_TYPE" = xclang; then 382 C_FLAG_DEPS="-MMD -MF" 383 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 384 C_FLAG_DEPS="-xMMD -xMF" 385 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 386 C_FLAG_DEPS="-qmakedep=gcc -MF" 387 fi 388 CXX_FLAG_DEPS="$C_FLAG_DEPS" 389 AC_SUBST(C_FLAG_DEPS) 390 AC_SUBST(CXX_FLAG_DEPS) 391 392 # Debug symbols 393 if test "x$TOOLCHAIN_TYPE" = xgcc; then 394 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then 395 # reduce from default "-g2" option to save space 396 CFLAGS_DEBUG_SYMBOLS="-g1" 397 CXXFLAGS_DEBUG_SYMBOLS="-g1" 398 else 399 CFLAGS_DEBUG_SYMBOLS="-g" 400 CXXFLAGS_DEBUG_SYMBOLS="-g" 401 fi 402 elif test "x$TOOLCHAIN_TYPE" = xclang; then 403 CFLAGS_DEBUG_SYMBOLS="-g" 404 CXXFLAGS_DEBUG_SYMBOLS="-g" 405 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 406 CFLAGS_DEBUG_SYMBOLS="-g -xs" 407 # -g0 enables debug symbols without disabling inlining. 408 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs" 409 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 410 CFLAGS_DEBUG_SYMBOLS="-g" 411 CXXFLAGS_DEBUG_SYMBOLS="-g" 412 fi 413 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 414 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) 415 416 # bounds, memory and behavior checking options 417 if test "x$TOOLCHAIN_TYPE" = xgcc; then 418 case $DEBUG_LEVEL in 419 release ) 420 # no adjustment 421 ;; 422 fastdebug ) 423 # no adjustment 424 ;; 425 slowdebug ) 426 # Add runtime stack smashing and undefined behavior checks. 427 # Not all versions of gcc support -fstack-protector 428 STACK_PROTECTOR_CFLAG="-fstack-protector-all" 429 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG -Werror], IF_FALSE: [STACK_PROTECTOR_CFLAG=""]) 430 431 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 432 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 433 ;; 434 esac 435 fi 436 437 # Optimization levels 438 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 439 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 440 441 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 442 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global? 443 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr" 444 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr" 445 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr" 446 C_O_FLAG_DEBUG="-xregs=no%frameptr" 447 C_O_FLAG_NONE="-xregs=no%frameptr" 448 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr" 449 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr" 450 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr" 451 CXX_O_FLAG_DEBUG="-xregs=no%frameptr" 452 CXX_O_FLAG_NONE="-xregs=no%frameptr" 453 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 454 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium" 455 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium" 456 fi 457 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 458 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra" 459 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 460 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 461 C_O_FLAG_DEBUG="" 462 C_O_FLAG_NONE="" 463 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra" 464 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 465 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 466 C_O_FLAG_DEBUG="" 467 CXX_O_FLAG_NONE="" 468 fi 469 else 470 # The remaining toolchains share opt flags between CC and CXX; 471 # setup for C and duplicate afterwards. 472 if test "x$TOOLCHAIN_TYPE" = xgcc; then 473 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 474 # On MacOSX we optimize for size, something 475 # we should do for all platforms? 476 C_O_FLAG_HIGHEST="-Os" 477 C_O_FLAG_HI="-Os" 478 C_O_FLAG_NORM="-Os" 479 else 480 C_O_FLAG_HIGHEST="-O3" 481 C_O_FLAG_HI="-O3" 482 C_O_FLAG_NORM="-O2" 483 fi 484 C_O_FLAG_DEBUG="-O0" 485 C_O_FLAG_NONE="-O0" 486 elif test "x$TOOLCHAIN_TYPE" = xclang; then 487 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 488 # On MacOSX we optimize for size, something 489 # we should do for all platforms? 490 C_O_FLAG_HIGHEST="-Os" 491 C_O_FLAG_HI="-Os" 492 C_O_FLAG_NORM="-Os" 493 else 494 C_O_FLAG_HIGHEST="-O3" 495 C_O_FLAG_HI="-O3" 496 C_O_FLAG_NORM="-O2" 497 fi 498 C_O_FLAG_DEBUG="-O0" 499 C_O_FLAG_NONE="-O0" 500 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 501 C_O_FLAG_HIGHEST="-O3" 502 C_O_FLAG_HI="-O3 -qstrict" 503 C_O_FLAG_NORM="-O2" 504 C_O_FLAG_DEBUG="-qnoopt" 505 C_O_FLAG_NONE="-qnoopt" 506 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 507 C_O_FLAG_HIGHEST="-O2" 508 C_O_FLAG_HI="-O1" 509 C_O_FLAG_NORM="-O1" 510 C_O_FLAG_DEBUG="-Od" 511 C_O_FLAG_NONE="-Od" 512 fi 513 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 514 CXX_O_FLAG_HI="$C_O_FLAG_HI" 515 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 516 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" 517 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 518 fi 519 520 # Adjust optimization flags according to debug level. 521 case $DEBUG_LEVEL in 522 release ) 523 # no adjustment 524 ;; 525 fastdebug ) 526 # Not quite so much optimization 527 C_O_FLAG_HI="$C_O_FLAG_NORM" 528 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 529 ;; 530 slowdebug ) 531 # Disable optimization 532 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" 533 C_O_FLAG_HI="$C_O_FLAG_DEBUG" 534 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" 535 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" 536 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" 537 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" 538 ;; 539 esac 540 541 AC_SUBST(C_O_FLAG_HIGHEST) 542 AC_SUBST(C_O_FLAG_HI) 543 AC_SUBST(C_O_FLAG_NORM) 544 AC_SUBST(C_O_FLAG_DEBUG) 545 AC_SUBST(C_O_FLAG_NONE) 546 AC_SUBST(CXX_O_FLAG_HIGHEST) 547 AC_SUBST(CXX_O_FLAG_HI) 548 AC_SUBST(CXX_O_FLAG_NORM) 549 AC_SUBST(CXX_O_FLAG_DEBUG) 550 AC_SUBST(CXX_O_FLAG_NONE) 551]) 552 553AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK], 554[ 555 # Special extras... 556 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 557 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 558 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 559 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 560 fi 561 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 562 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 563 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 564 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 565 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 566 fi 567 568 CFLAGS_JDK="${CFLAGS_JDK} $EXTRA_CFLAGS" 569 CXXFLAGS_JDK="${CXXFLAGS_JDK} $EXTRA_CXXFLAGS" 570 LDFLAGS_JDK="${LDFLAGS_JDK} $EXTRA_LDFLAGS" 571 572 ############################################################################### 573 # 574 # Now setup the CFLAGS and LDFLAGS for the JDK build. 575 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. 576 # 577 578 # Setup compiler/platform specific flags into 579 # CFLAGS_JDK - C Compiler flags 580 # CXXFLAGS_JDK - C++ Compiler flags 581 # COMMON_CCXXFLAGS_JDK - common to C and C++ 582 if test "x$TOOLCHAIN_TYPE" = xgcc; then 583 if test "x$OPENJDK_TARGET_CPU" = xx86; then 584 # Force compatibility with i586 on 32 bit intel platforms. 585 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586" 586 fi 587 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 588 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 589 case $OPENJDK_TARGET_CPU_ARCH in 590 arm ) 591 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing 592 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 593 ;; 594 ppc ) 595 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 596 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 597 ;; 598 * ) 599 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 600 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 601 ;; 602 esac 603 elif test "x$TOOLCHAIN_TYPE" = xclang; then 604 if test "x$OPENJDK_TARGET_OS" = xlinux; then 605 if test "x$OPENJDK_TARGET_CPU" = xx86; then 606 # Force compatibility with i586 on 32 bit intel platforms. 607 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586" 608 fi 609 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 610 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 611 case $OPENJDK_TARGET_CPU_ARCH in 612 ppc ) 613 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 614 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 615 ;; 616 * ) 617 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 618 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 619 ;; 620 esac 621 fi 622 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 623 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 624 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 625 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB" 626 fi 627 628 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal" 629 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib" 630 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 631 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 632 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 633 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 634 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK \ 635 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \ 636 -DWIN32_LEAN_AND_MEAN \ 637 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \ 638 -D_WINSOCK_DEPRECATED_NO_WARNINGS \ 639 -DWIN32 -DIAL" 640 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 641 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64" 642 else 643 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86" 644 fi 645 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to 646 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual 647 # studio. 648 if test "x$TOOLCHAIN_VERSION" = "x2010"; then 649 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \ 650 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB" 651 fi 652 fi 653 654 ############################################################################### 655 656 # Adjust flags according to debug level. 657 case $DEBUG_LEVEL in 658 fastdebug | slowdebug ) 659 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS" 660 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS" 661 JAVAC_FLAGS="$JAVAC_FLAGS -g" 662 ;; 663 release ) 664 ;; 665 * ) 666 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 667 ;; 668 esac 669 670 # Setup LP64 671 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64" 672 673 # Set some common defines. These works for all compilers, but assume 674 # -D is universally accepted. 675 676 # Setup endianness 677 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then 678 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 679 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 680 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h). 681 # Note: -Dmacro is the same as #define macro 1 682 # -Dmacro= is the same as #define macro 683 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 684 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN=" 685 else 686 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN" 687 fi 688 else 689 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they 690 # are defined in the system? 691 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 692 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN=" 693 else 694 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN" 695 fi 696 fi 697 698 # Setup target OS define. Use OS target name but in upper case. 699 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 700 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 701 702 # Setup target CPU 703 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY" 704 705 # Setup debug/release defines 706 if test "x$DEBUG_LEVEL" = xrelease; then 707 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG" 708 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 709 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED" 710 fi 711 else 712 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG" 713 fi 714 715 # Set some additional per-OS defines. 716 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 717 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 718 elif test "x$OPENJDK_TARGET_OS" = xaix; then 719 # FIXME: PPC64 should not be here. 720 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DPPC64" 721 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 722 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE" 723 fi 724 725 # Additional macosx handling 726 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 727 # Setting these parameters makes it an error to link to macosx APIs that are 728 # newer than the given OS version and makes the linked binaries compatible 729 # even if built on a newer version of the OS. 730 # The expected format is X.Y.Z 731 MACOSX_VERSION_MIN=10.7.0 732 AC_SUBST(MACOSX_VERSION_MIN) 733 734 # The macro takes the version with no dots, ex: 1070 735 # Let the flags variables get resolved in make for easier override on make 736 # command line. 737 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 738 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 739 fi 740 741 # Setup some hard coded includes 742 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \ 743 -I${JDK_TOPDIR}/src/java.base/share/native/include \ 744 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \ 745 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include \ 746 -I${JDK_TOPDIR}/src/java.base/share/native/libjava \ 747 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava" 748 749 # The shared libraries are compiled using the picflag. 750 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 751 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 752 753 # Executable flags 754 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 755 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 756 757 AC_SUBST(CFLAGS_JDKLIB) 758 AC_SUBST(CFLAGS_JDKEXE) 759 AC_SUBST(CXXFLAGS_JDKLIB) 760 AC_SUBST(CXXFLAGS_JDKEXE) 761 762 # Flags for compiling test libraries 763 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 764 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 765 766 # Flags for compiling test executables 767 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 768 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 769 770 AC_SUBST(CFLAGS_TESTLIB) 771 AC_SUBST(CFLAGS_TESTEXE) 772 AC_SUBST(CXXFLAGS_TESTLIB) 773 AC_SUBST(CXXFLAGS_TESTEXE) 774 775 # Setup LDFLAGS et al. 776 # 777 778 # Now this is odd. The JDK native libraries have to link against libjvm.so 779 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server. 780 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library 781 # is identical for client and server? Yes. Which is picked at runtime (client or server)? 782 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following 783 # libraries will link to whatever is in memory. Yuck. 784 # 785 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh. 786 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 787 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no" 788 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 789 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh" 790 fi 791 # TODO: make -debug optional "--disable-full-debug-symbols" 792 LDFLAGS_JDK="$LDFLAGS_JDK -debug" 793 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 794 # If this is a --hash-style=gnu system, use --hash-style=both, why? 795 # We have previously set HAS_GNU_HASH if this is the case 796 if test -n "$HAS_GNU_HASH"; then 797 LDFLAGS_JDK="${LDFLAGS_JDK} -Wl,--hash-style=both" 798 fi 799 if test "x$OPENJDK_TARGET_OS" = xlinux; then 800 # And since we now know that the linker is gnu, then add -z defs, to forbid 801 # undefined symbols in object files. 802 LDFLAGS_JDK="${LDFLAGS_JDK} -Wl,-z,defs" 803 case $DEBUG_LEVEL in 804 release ) 805 # tell linker to optimize libraries. 806 # Should this be supplied to the OSS linker as well? 807 LDFLAGS_JDK="${LDFLAGS_JDK} -Wl,-O1" 808 ;; 809 slowdebug ) 810 if test "x$HAS_LINKER_NOW" = "xtrue"; then 811 # do relocations at load 812 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_NOW_FLAG" 813 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_NOW_FLAG" 814 fi 815 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 816 # mark relocations read only 817 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 818 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 819 fi 820 ;; 821 fastdebug ) 822 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 823 # mark relocations read only 824 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 825 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 826 fi 827 ;; 828 * ) 829 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 830 ;; 831 esac 832 fi 833 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 834 LDFLAGS_JDK="$LDFLAGS_JDK -Wl,-z,defs -xildoff -ztext" 835 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib" 836 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 837 LDFLAGS_JDK="${LDFLAGS_JDK} -brtl -bnolibpath -bexpall -bernotok" 838 fi 839 840 # Customize LDFLAGS for executables 841 842 LDFLAGS_JDKEXE="${LDFLAGS_JDK}" 843 844 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 845 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 846 LDFLAGS_STACK_SIZE=1048576 847 else 848 LDFLAGS_STACK_SIZE=327680 849 fi 850 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE" 851 elif test "x$OPENJDK_TARGET_OS" = xlinux; then 852 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Wl,--allow-shlib-undefined" 853 fi 854 855 # Customize LDFLAGS for libs 856 LDFLAGS_JDKLIB="${LDFLAGS_JDK}" 857 858 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS}" 859 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 860 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \ 861 -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base" 862 JDKLIB_LIBS="" 863 else 864 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \ 865 -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}" 866 867 # On some platforms (mac) the linker warns about non existing -L dirs. 868 # Add server first if available. Linking aginst client does not always produce the same results. 869 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1. 870 # Default to server for other variants. 871 if test "x$JVM_VARIANT_SERVER" = xtrue; then 872 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 873 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then 874 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client" 875 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then 876 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal" 877 else 878 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 879 fi 880 881 JDKLIB_LIBS="-ljava -ljvm" 882 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 883 JDKLIB_LIBS="$JDKLIB_LIBS -lc" 884 fi 885 fi 886 887 AC_SUBST(LDFLAGS_JDKLIB) 888 AC_SUBST(LDFLAGS_JDKEXE) 889 AC_SUBST(JDKLIB_LIBS) 890 AC_SUBST(JDKEXE_LIBS) 891 AC_SUBST(LDFLAGS_CXX_JDK) 892 893 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB" 894 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE" 895 896 AC_SUBST(LDFLAGS_TESTLIB) 897 AC_SUBST(LDFLAGS_TESTEXE) 898]) 899 900# FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 901# IF_FALSE: [RUN-IF-FALSE]) 902# ------------------------------------------------------------ 903# Check that the c and c++ compilers support an argument 904BASIC_DEFUN_NAMED([FLAGS_COMPILER_CHECK_ARGUMENTS], 905 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 906[ 907 AC_MSG_CHECKING([if compiler supports "ARG_ARGUMENT"]) 908 supports=yes 909 910 saved_cflags="$CFLAGS" 911 CFLAGS="$CFLAGS ARG_ARGUMENT" 912 AC_LANG_PUSH([C]) 913 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 914 [supports=no]) 915 AC_LANG_POP([C]) 916 CFLAGS="$saved_cflags" 917 918 saved_cxxflags="$CXXFLAGS" 919 CXXFLAGS="$CXXFLAG ARG_ARGUMENT" 920 AC_LANG_PUSH([C++]) 921 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 922 [supports=no]) 923 AC_LANG_POP([C++]) 924 CXXFLAGS="$saved_cxxflags" 925 926 AC_MSG_RESULT([$supports]) 927 if test "x$supports" = "xyes" ; then 928 : 929 ARG_IF_TRUE 930 else 931 : 932 ARG_IF_FALSE 933 fi 934]) 935 936# FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 937# IF_FALSE: [RUN-IF-FALSE]) 938# ------------------------------------------------------------ 939# Check that the linker support an argument 940BASIC_DEFUN_NAMED([FLAGS_LINKER_CHECK_ARGUMENTS], 941 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 942[ 943 AC_MSG_CHECKING([if linker supports "ARG_ARGUMENT"]) 944 supports=yes 945 946 saved_ldflags="$LDFLAGS" 947 LDFLAGS="$LDFLAGS ARG_ARGUMENT" 948 AC_LANG_PUSH([C]) 949 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], 950 [], [supports=no]) 951 AC_LANG_POP([C]) 952 LDFLAGS="$saved_ldflags" 953 954 AC_MSG_RESULT([$supports]) 955 if test "x$supports" = "xyes" ; then 956 : 957 ARG_IF_TRUE 958 else 959 : 960 ARG_IF_FALSE 961 fi 962]) 963 964AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC], 965[ 966 # Some Zero and Shark settings. 967 # ZERO_ARCHFLAG tells the compiler which mode to build for 968 case "${OPENJDK_TARGET_CPU}" in 969 s390) 970 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31" 971 ;; 972 *) 973 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 974 esac 975 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$ZERO_ARCHFLAG], IF_FALSE: [ZERO_ARCHFLAG=""]) 976 AC_SUBST(ZERO_ARCHFLAG) 977 978 # Check that the compiler supports -mX (or -qX on AIX) flags 979 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 980 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 981 IF_TRUE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 982 IF_FALSE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 983 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 984 985 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors], 986 [do not consider native warnings to be an error @<:@enabled@:>@])]) 987 988 AC_MSG_CHECKING([if native warnings are errors]) 989 if test "x$enable_warnings_as_errors" = "xyes"; then 990 AC_MSG_RESULT([yes (explicitely set)]) 991 WARNINGS_AS_ERRORS=true 992 elif test "x$enable_warnings_as_errors" = "xno"; then 993 AC_MSG_RESULT([no]) 994 WARNINGS_AS_ERRORS=false 995 elif test "x$enable_warnings_as_errors" = "x"; then 996 AC_MSG_RESULT([yes (default)]) 997 WARNINGS_AS_ERRORS=true 998 else 999 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument]) 1000 fi 1001 1002 if test "x$WARNINGS_AS_ERRORS" = "xfalse"; then 1003 # Set legacy hotspot variable 1004 HOTSPOT_SET_WARNINGS_AS_ERRORS="WARNINGS_ARE_ERRORS=" 1005 else 1006 HOTSPOT_SET_WARNINGS_AS_ERRORS="" 1007 fi 1008 1009 AC_SUBST(WARNINGS_AS_ERRORS) 1010 AC_SUBST(HOTSPOT_SET_WARNINGS_AS_ERRORS) 1011 1012 case "${TOOLCHAIN_TYPE}" in 1013 microsoft) 1014 DISABLE_WARNING_PREFIX="-wd" 1015 CFLAGS_WARNINGS_ARE_ERRORS="-WX" 1016 ;; 1017 solstudio) 1018 DISABLE_WARNING_PREFIX="-erroff=" 1019 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" 1020 ;; 1021 gcc) 1022 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error 1023 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], 1024 IF_TRUE: [GCC_CAN_DISABLE_WARNINGS=true], 1025 IF_FALSE: [GCC_CAN_DISABLE_WARNINGS=false] 1026 ) 1027 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1028 DISABLE_WARNING_PREFIX="-Wno-" 1029 else 1030 DISABLE_WARNING_PREFIX= 1031 fi 1032 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1033 # Repeate the check for the BUILD_CC 1034 CC_OLD="$CC" 1035 CC="$BUILD_CC" 1036 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], 1037 IF_TRUE: [BUILD_CC_CAN_DISABLE_WARNINGS=true], 1038 IF_FALSE: [BUILD_CC_CAN_DISABLE_WARNINGS=false] 1039 ) 1040 if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1041 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" 1042 else 1043 BUILD_CC_DISABLE_WARNING_PREFIX= 1044 fi 1045 CC="$CC_OLD" 1046 ;; 1047 clang) 1048 DISABLE_WARNING_PREFIX="-Wno-" 1049 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1050 ;; 1051 esac 1052 AC_SUBST(DISABLE_WARNING_PREFIX) 1053 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 1054]) 1055