flags.m4 revision 1967:9d77f922d694
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($1SYSROOT_LDFLAGS) 120]) 121 122AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS], 123[ 124 # COMPILER_TARGET_BITS_FLAG : option for selecting 32- or 64-bit output 125 # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler 126 # COMPILER_BINDCMD_FILE_FLAG : option for specifying a file which saves the binder 127 # commands produced by the link step (currently AIX only) 128 if test "x$TOOLCHAIN_TYPE" = xxlc; then 129 COMPILER_TARGET_BITS_FLAG="-q" 130 COMPILER_COMMAND_FILE_FLAG="-f" 131 COMPILER_BINDCMD_FILE_FLAG="-bloadmap:" 132 else 133 COMPILER_TARGET_BITS_FLAG="-m" 134 COMPILER_COMMAND_FILE_FLAG="@" 135 COMPILER_BINDCMD_FILE_FLAG="" 136 137 # The solstudio linker does not support @-files. 138 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 139 COMPILER_COMMAND_FILE_FLAG= 140 fi 141 142 # Check if @file is supported by gcc 143 if test "x$TOOLCHAIN_TYPE" = xgcc; then 144 AC_MSG_CHECKING([if @file is supported by gcc]) 145 # Extra emtpy "" to prevent ECHO from interpreting '--version' as argument 146 $ECHO "" "--version" > command.file 147 if $CXX @command.file 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then 148 AC_MSG_RESULT(yes) 149 COMPILER_COMMAND_FILE_FLAG="@" 150 else 151 AC_MSG_RESULT(no) 152 COMPILER_COMMAND_FILE_FLAG= 153 fi 154 rm -rf command.file 155 fi 156 fi 157 AC_SUBST(COMPILER_TARGET_BITS_FLAG) 158 AC_SUBST(COMPILER_COMMAND_FILE_FLAG) 159 AC_SUBST(COMPILER_BINDCMD_FILE_FLAG) 160 161 # FIXME: figure out if we should select AR flags depending on OS or toolchain. 162 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 163 ARFLAGS="-r" 164 elif test "x$OPENJDK_TARGET_OS" = xaix; then 165 ARFLAGS="-X64" 166 elif test "x$OPENJDK_TARGET_OS" = xwindows; then 167 # lib.exe is used as AR to create static libraries. 168 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT" 169 else 170 ARFLAGS="" 171 fi 172 AC_SUBST(ARFLAGS) 173 174 ## Setup strip. 175 # FIXME: should this really be per platform, or should it be per toolchain type? 176 # strip is not provided by clang or solstudio; so guessing platform makes most sense. 177 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD. 178 if test "x$OPENJDK_TARGET_OS" = xlinux; then 179 STRIPFLAGS="-g" 180 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then 181 STRIPFLAGS="-x" 182 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 183 STRIPFLAGS="-S" 184 elif test "x$OPENJDK_TARGET_OS" = xaix; then 185 STRIPFLAGS="-X32_64" 186 fi 187 188 AC_SUBST(STRIPFLAGS) 189 190 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 191 CC_OUT_OPTION=-Fo 192 EXE_OUT_OPTION=-out: 193 LD_OUT_OPTION=-out: 194 AR_OUT_OPTION=-out: 195 else 196 # The option used to specify the target .o,.a or .so file. 197 # When compiling, how to specify the to be created object file. 198 CC_OUT_OPTION='-o$(SPACE)' 199 # When linking, how to specify the to be created executable. 200 EXE_OUT_OPTION='-o$(SPACE)' 201 # When linking, how to specify the to be created dynamically linkable library. 202 LD_OUT_OPTION='-o$(SPACE)' 203 # When archiving, how to specify the to be create static archive for object files. 204 AR_OUT_OPTION='rcs$(SPACE)' 205 fi 206 AC_SUBST(CC_OUT_OPTION) 207 AC_SUBST(EXE_OUT_OPTION) 208 AC_SUBST(LD_OUT_OPTION) 209 AC_SUBST(AR_OUT_OPTION) 210 211 # On Windows, we need to set RC flags. 212 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 213 RC_FLAGS="-nologo -l0x409" 214 if test "x$DEBUG_LEVEL" = xrelease; then 215 RC_FLAGS="$RC_FLAGS -DNDEBUG" 216 fi 217 218 # The version variables used to create RC_FLAGS may be overridden 219 # in a custom configure script, or possibly the command line. 220 # Let those variables be expanded at make time in spec.gmk. 221 # The \$ are escaped to the shell, and the $(...) variables 222 # are evaluated by make. 223 RC_FLAGS="$RC_FLAGS \ 224 -D\"JDK_VERSION_STRING=\$(VERSION_STRING)\" \ 225 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \ 226 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \ 227 -D\"JDK_VER=\$(VERSION_NUMBER)\" \ 228 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \ 229 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(VERSION_MAJOR)\" \ 230 -D\"JDK_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\"" 231 fi 232 AC_SUBST(RC_FLAGS) 233 234 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 235 # silence copyright notice and other headers. 236 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo" 237 fi 238]) 239 240AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS], 241[ 242 ############################################################################### 243 # 244 # How to compile shared libraries. 245 # 246 247 if test "x$TOOLCHAIN_TYPE" = xgcc; then 248 PICFLAG="-fPIC" 249 C_FLAG_REORDER='' 250 CXX_FLAG_REORDER='' 251 252 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 253 # Linking is different on MacOSX 254 if test "x$STATIC_BUILD" = xtrue; then 255 SHARED_LIBRARY_FLAGS ='-undefined dynamic_lookup' 256 else 257 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 258 fi 259 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.' 260 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 261 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' 262 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1' 263 else 264 # Default works for linux, might work on other platforms as well. 265 SHARED_LIBRARY_FLAGS='-shared' 266 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1' 267 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 268 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 269 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 270 fi 271 elif test "x$TOOLCHAIN_TYPE" = xclang; then 272 C_FLAG_REORDER='' 273 CXX_FLAG_REORDER='' 274 275 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 276 # Linking is different on MacOSX 277 PICFLAG='' 278 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 279 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.' 280 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 281 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' 282 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1' 283 else 284 # Default works for linux, might work on other platforms as well. 285 PICFLAG='-fPIC' 286 SHARED_LIBRARY_FLAGS='-shared' 287 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1' 288 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 289 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 290 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 291 fi 292 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 293 PICFLAG="-KPIC" 294 C_FLAG_REORDER='-xF' 295 CXX_FLAG_REORDER='-xF' 296 SHARED_LIBRARY_FLAGS="-G" 297 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1' 298 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 299 SET_SHARED_LIBRARY_NAME='-h [$]1' 300 SET_SHARED_LIBRARY_MAPFILE='-M[$]1' 301 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 302 # '-qpic' defaults to 'qpic=small'. This means that the compiler generates only 303 # one instruction for accessing the TOC. If the TOC grows larger than 64K, the linker 304 # will have to patch this single instruction with a call to some out-of-order code which 305 # does the load from the TOC. This is of course slow. But in that case we also would have 306 # to use '-bbigtoc' for linking anyway so we could also change the PICFLAG to 'qpic=large'. 307 # With 'qpic=large' the compiler will by default generate a two-instruction sequence which 308 # can be patched directly by the linker and does not require a jump to out-of-order code. 309 # Another alternative instead of using 'qpic=large -bbigtoc' may be to use '-qminimaltoc' 310 # instead. This creates a distinct TOC for every compilation unit (and thus requires two 311 # loads for accessing a global variable). But there are rumors that this may be seen as a 312 # 'performance feature' because of improved code locality of the symbols used in a 313 # compilation unit. 314 PICFLAG="-qpic" 315 JVM_CFLAGS="$JVM_CFLAGS $PICFLAG" 316 C_FLAG_REORDER='' 317 CXX_FLAG_REORDER='' 318 SHARED_LIBRARY_FLAGS="-qmkshrobj -bM:SRE -bnoentry" 319 SET_EXECUTABLE_ORIGIN="" 320 SET_SHARED_LIBRARY_ORIGIN='' 321 SET_SHARED_LIBRARY_NAME='' 322 SET_SHARED_LIBRARY_MAPFILE='' 323 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 324 PICFLAG="" 325 C_FLAG_REORDER='' 326 CXX_FLAG_REORDER='' 327 SHARED_LIBRARY_FLAGS="-dll" 328 SET_EXECUTABLE_ORIGIN='' 329 SET_SHARED_LIBRARY_ORIGIN='' 330 SET_SHARED_LIBRARY_NAME='' 331 SET_SHARED_LIBRARY_MAPFILE='-def:[$]1' 332 fi 333 334 AC_SUBST(C_FLAG_REORDER) 335 AC_SUBST(CXX_FLAG_REORDER) 336 AC_SUBST(SET_EXECUTABLE_ORIGIN) 337 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) 338 AC_SUBST(SET_SHARED_LIBRARY_NAME) 339 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) 340 AC_SUBST(SHARED_LIBRARY_FLAGS) 341 342 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 343 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__" 344 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__" 345 CFLAGS_JDKLIB_EXTRA='-xstrconst' 346 fi 347 # The (cross) compiler is now configured, we can now test capabilities 348 # of the target platform. 349]) 350 351# Documentation on common flags used for solstudio in HIGHEST. 352# 353# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be 354# done with care, there are some assumptions below that need to 355# be understood about the use of pointers, and IEEE behavior. 356# 357# -fns: Use non-standard floating point mode (not IEEE 754) 358# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) 359# -fsingle: Use single precision floating point with 'float' 360# -xalias_level=basic: Assume memory references via basic pointer types do not alias 361# (Source with excessing pointer casting and data access with mixed 362# pointer types are not recommended) 363# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions 364# (If you expect perfect errno behavior, do not use this) 365# -xdepend: Loop data dependency optimizations (need -xO3 or higher) 366# -xrestrict: Pointer parameters to functions do not overlap 367# (Similar to -xalias_level=basic usage, but less obvious sometimes. 368# If you pass in multiple pointers to the same data, do not use this) 369# -xlibmil: Inline some library routines 370# (If you expect perfect errno behavior, do not use this) 371# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) 372# (If you expect perfect errno behavior, do not use this) 373# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now 374 375 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore. 376 # Bug? 377 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then 378 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s" 379 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s" 380 #fi 381 382AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION], 383[ 384 385 ############################################################################### 386 # 387 # Setup the opt flags for different compilers 388 # and different operating systems. 389 # 390 391 # FIXME: this was indirectly the old default, but just inherited. 392 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 393 # C_FLAG_DEPS="-MMD -MF" 394 # fi 395 396 # Generate make dependency files 397 if test "x$TOOLCHAIN_TYPE" = xgcc; then 398 C_FLAG_DEPS="-MMD -MF" 399 elif test "x$TOOLCHAIN_TYPE" = xclang; then 400 C_FLAG_DEPS="-MMD -MF" 401 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 402 C_FLAG_DEPS="-xMMD -xMF" 403 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 404 C_FLAG_DEPS="-qmakedep=gcc -MF" 405 fi 406 CXX_FLAG_DEPS="$C_FLAG_DEPS" 407 AC_SUBST(C_FLAG_DEPS) 408 AC_SUBST(CXX_FLAG_DEPS) 409 410 # Debug symbols 411 if test "x$TOOLCHAIN_TYPE" = xgcc; then 412 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then 413 # reduce from default "-g2" option to save space 414 CFLAGS_DEBUG_SYMBOLS="-g1" 415 CXXFLAGS_DEBUG_SYMBOLS="-g1" 416 else 417 CFLAGS_DEBUG_SYMBOLS="-g" 418 CXXFLAGS_DEBUG_SYMBOLS="-g" 419 fi 420 elif test "x$TOOLCHAIN_TYPE" = xclang; then 421 CFLAGS_DEBUG_SYMBOLS="-g" 422 CXXFLAGS_DEBUG_SYMBOLS="-g" 423 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 424 CFLAGS_DEBUG_SYMBOLS="-g -xs" 425 # -g0 enables debug symbols without disabling inlining. 426 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs" 427 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 428 CFLAGS_DEBUG_SYMBOLS="-g" 429 CXXFLAGS_DEBUG_SYMBOLS="-g" 430 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 431 CFLAGS_DEBUG_SYMBOLS="-Zi" 432 CXXFLAGS_DEBUG_SYMBOLS="-Zi" 433 fi 434 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 435 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) 436 437 # bounds, memory and behavior checking options 438 if test "x$TOOLCHAIN_TYPE" = xgcc; then 439 case $DEBUG_LEVEL in 440 release ) 441 # no adjustment 442 ;; 443 fastdebug ) 444 # no adjustment 445 ;; 446 slowdebug ) 447 # FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS it 448 # get's added conditionally on whether we produce debug symbols or not. 449 # This is most likely not really correct. 450 451 # Add runtime stack smashing and undefined behavior checks. 452 # Not all versions of gcc support -fstack-protector 453 STACK_PROTECTOR_CFLAG="-fstack-protector-all" 454 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG -Werror], IF_FALSE: [STACK_PROTECTOR_CFLAG=""]) 455 456 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 457 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 458 ;; 459 esac 460 fi 461 462 # Optimization levels 463 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 464 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 465 466 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 467 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global? 468 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr" 469 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr" 470 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr" 471 C_O_FLAG_DEBUG="-xregs=no%frameptr" 472 C_O_FLAG_NONE="-xregs=no%frameptr" 473 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr" 474 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr" 475 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr" 476 CXX_O_FLAG_DEBUG="-xregs=no%frameptr" 477 CXX_O_FLAG_NONE="-xregs=no%frameptr" 478 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 479 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium" 480 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium" 481 fi 482 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 483 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra" 484 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 485 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 486 C_O_FLAG_DEBUG="" 487 C_O_FLAG_NONE="" 488 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra" 489 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 490 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 491 CXX_O_FLAG_DEBUG="" 492 CXX_O_FLAG_NONE="" 493 fi 494 else 495 # The remaining toolchains share opt flags between CC and CXX; 496 # setup for C and duplicate afterwards. 497 if test "x$TOOLCHAIN_TYPE" = xgcc; then 498 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 499 # On MacOSX we optimize for size, something 500 # we should do for all platforms? 501 C_O_FLAG_HIGHEST="-Os" 502 C_O_FLAG_HI="-Os" 503 C_O_FLAG_NORM="-Os" 504 else 505 C_O_FLAG_HIGHEST="-O3" 506 C_O_FLAG_HI="-O3" 507 C_O_FLAG_NORM="-O2" 508 fi 509 C_O_FLAG_DEBUG="-O0" 510 C_O_FLAG_NONE="-O0" 511 elif test "x$TOOLCHAIN_TYPE" = xclang; then 512 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 513 # On MacOSX we optimize for size, something 514 # we should do for all platforms? 515 C_O_FLAG_HIGHEST="-Os" 516 C_O_FLAG_HI="-Os" 517 C_O_FLAG_NORM="-Os" 518 else 519 C_O_FLAG_HIGHEST="-O3" 520 C_O_FLAG_HI="-O3" 521 C_O_FLAG_NORM="-O2" 522 fi 523 C_O_FLAG_DEBUG="-O0" 524 C_O_FLAG_NONE="-O0" 525 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 526 C_O_FLAG_HIGHEST="-O3" 527 C_O_FLAG_HI="-O3 -qstrict" 528 C_O_FLAG_NORM="-O2" 529 C_O_FLAG_DEBUG="-qnoopt" 530 C_O_FLAG_NONE="-qnoopt" 531 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 532 C_O_FLAG_HIGHEST="-O2" 533 C_O_FLAG_HI="-O1" 534 C_O_FLAG_NORM="-O1" 535 C_O_FLAG_DEBUG="-Od" 536 C_O_FLAG_NONE="-Od" 537 fi 538 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 539 CXX_O_FLAG_HI="$C_O_FLAG_HI" 540 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 541 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" 542 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 543 fi 544 545 # Adjust optimization flags according to debug level. 546 case $DEBUG_LEVEL in 547 release ) 548 # no adjustment 549 ;; 550 fastdebug ) 551 # Not quite so much optimization 552 C_O_FLAG_HI="$C_O_FLAG_NORM" 553 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 554 ;; 555 slowdebug ) 556 # Disable optimization 557 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" 558 C_O_FLAG_HI="$C_O_FLAG_DEBUG" 559 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" 560 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" 561 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" 562 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" 563 ;; 564 esac 565 566 AC_SUBST(C_O_FLAG_HIGHEST) 567 AC_SUBST(C_O_FLAG_HI) 568 AC_SUBST(C_O_FLAG_NORM) 569 AC_SUBST(C_O_FLAG_DEBUG) 570 AC_SUBST(C_O_FLAG_NONE) 571 AC_SUBST(CXX_O_FLAG_HIGHEST) 572 AC_SUBST(CXX_O_FLAG_HI) 573 AC_SUBST(CXX_O_FLAG_NORM) 574 AC_SUBST(CXX_O_FLAG_DEBUG) 575 AC_SUBST(CXX_O_FLAG_NONE) 576]) 577 578AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK], 579[ 580 # Special extras... 581 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 582 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 583 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 584 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 585 fi 586 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 587 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 588 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 589 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 590 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 591 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 592 CXXSTD_CXXFLAG="-std=gnu++98" 593 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$CXXSTD_CXXFLAG -Werror], 594 IF_FALSE: [CXXSTD_CXXFLAG=""]) 595 CXXFLAGS_JDK="${CXXFLAGS_JDK} ${CXXSTD_CXXFLAG}" 596 AC_SUBST([CXXSTD_CXXFLAG]) 597 fi 598 599 CFLAGS_JDK="${CFLAGS_JDK} $EXTRA_CFLAGS" 600 CXXFLAGS_JDK="${CXXFLAGS_JDK} $EXTRA_CXXFLAGS" 601 LDFLAGS_JDK="${LDFLAGS_JDK} $EXTRA_LDFLAGS" 602 603 ############################################################################### 604 # 605 # Now setup the CFLAGS and LDFLAGS for the JDK build. 606 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. 607 # 608 609 # Setup compiler/platform specific flags into 610 # CFLAGS_JDK - C Compiler flags 611 # CXXFLAGS_JDK - C++ Compiler flags 612 # COMMON_CCXXFLAGS_JDK - common to C and C++ 613 if test "x$TOOLCHAIN_TYPE" = xgcc; then 614 if test "x$OPENJDK_TARGET_CPU" = xx86; then 615 # Force compatibility with i586 on 32 bit intel platforms. 616 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586" 617 fi 618 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 619 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 620 case $OPENJDK_TARGET_CPU_ARCH in 621 arm ) 622 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing 623 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 624 ;; 625 ppc ) 626 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 627 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 628 ;; 629 * ) 630 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 631 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 632 ;; 633 esac 634 TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: 6, IF_AT_LEAST: FLAGS_SETUP_GCC6_COMPILER_FLAGS) 635 elif test "x$TOOLCHAIN_TYPE" = xclang; then 636 if test "x$OPENJDK_TARGET_OS" = xlinux; then 637 if test "x$OPENJDK_TARGET_CPU" = xx86; then 638 # Force compatibility with i586 on 32 bit intel platforms. 639 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586" 640 fi 641 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 642 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 643 case $OPENJDK_TARGET_CPU_ARCH in 644 ppc ) 645 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 646 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 647 ;; 648 * ) 649 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 650 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 651 ;; 652 esac 653 fi 654 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 655 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 656 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 657 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB" 658 fi 659 660 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal" 661 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib" 662 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 663 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 664 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 665 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 666 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK \ 667 -MD -Zc:wchar_t- -W3 -wd4800 \ 668 -DWIN32_LEAN_AND_MEAN \ 669 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \ 670 -D_WINSOCK_DEPRECATED_NO_WARNINGS \ 671 -DWIN32 -DIAL" 672 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 673 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64" 674 else 675 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86" 676 fi 677 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to 678 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual 679 # studio. 680 if test "x$TOOLCHAIN_VERSION" = "x2010"; then 681 STATIC_CPPLIB_FLAGS="-D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB" 682 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $STATIC_CPPLIB_FLAGS" 683 fi 684 fi 685 686 ############################################################################### 687 688 # Adjust flags according to debug level. 689 case $DEBUG_LEVEL in 690 fastdebug | slowdebug ) 691 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS" 692 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS" 693 JAVAC_FLAGS="$JAVAC_FLAGS -g" 694 ;; 695 release ) 696 ;; 697 * ) 698 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 699 ;; 700 esac 701 702 # Setup LP64 703 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64" 704 705 # Set some common defines. These works for all compilers, but assume 706 # -D is universally accepted. 707 708 # Setup endianness 709 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then 710 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 711 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 712 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h). 713 # Note: -Dmacro is the same as #define macro 1 714 # -Dmacro= is the same as #define macro 715 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 716 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN=" 717 else 718 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN" 719 fi 720 else 721 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they 722 # are defined in the system? 723 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 724 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN=" 725 else 726 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN" 727 fi 728 fi 729 730 # Setup target OS define. Use OS target name but in upper case. 731 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 732 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 733 734 # Setup target CPU 735 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY" 736 737 # Setup debug/release defines 738 if test "x$DEBUG_LEVEL" = xrelease; then 739 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG" 740 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 741 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED" 742 fi 743 else 744 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG" 745 fi 746 747 # Set some additional per-OS defines. 748 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 749 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 750 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 751 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE" 752 fi 753 754 # Additional macosx handling 755 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 756 # Setting these parameters makes it an error to link to macosx APIs that are 757 # newer than the given OS version and makes the linked binaries compatible 758 # even if built on a newer version of the OS. 759 # The expected format is X.Y.Z 760 MACOSX_VERSION_MIN=10.7.0 761 AC_SUBST(MACOSX_VERSION_MIN) 762 763 # The macro takes the version with no dots, ex: 1070 764 # Let the flags variables get resolved in make for easier override on make 765 # command line. 766 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 767 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 768 fi 769 770 # Setup some hard coded includes 771 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \ 772 -I${JDK_TOPDIR}/src/java.base/share/native/include \ 773 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \ 774 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include \ 775 -I${JDK_TOPDIR}/src/java.base/share/native/libjava \ 776 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava" 777 778 # The shared libraries are compiled using the picflag. 779 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 780 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 781 782 # Executable flags 783 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 784 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 785 786 AC_SUBST(CFLAGS_JDKLIB) 787 AC_SUBST(CFLAGS_JDKEXE) 788 AC_SUBST(CXXFLAGS_JDKLIB) 789 AC_SUBST(CXXFLAGS_JDKEXE) 790 791 # Flags for compiling test libraries 792 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 793 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 794 795 # Flags for compiling test executables 796 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 797 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 798 799 AC_SUBST(CFLAGS_TESTLIB) 800 AC_SUBST(CFLAGS_TESTEXE) 801 AC_SUBST(CXXFLAGS_TESTLIB) 802 AC_SUBST(CXXFLAGS_TESTEXE) 803 804 # Setup LDFLAGS et al. 805 # 806 807 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 808 LDFLAGS_MICROSOFT="-nologo -opt:ref" 809 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_MICROSOFT -incremental:no" 810 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 811 LDFLAGS_SAFESH="-safeseh" 812 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_SAFESH" 813 fi 814 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 815 # If this is a --hash-style=gnu system, use --hash-style=both, why? 816 # We have previously set HAS_GNU_HASH if this is the case 817 if test -n "$HAS_GNU_HASH"; then 818 LDFLAGS_HASH_STYLE="-Wl,--hash-style=both" 819 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_HASH_STYLE" 820 fi 821 if test "x$OPENJDK_TARGET_OS" = xlinux; then 822 # And since we now know that the linker is gnu, then add -z defs, to forbid 823 # undefined symbols in object files. 824 LDFLAGS_NO_UNDEF_SYM="-Wl,-z,defs" 825 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_NO_UNDEF_SYM" 826 case $DEBUG_LEVEL in 827 release ) 828 # tell linker to optimize libraries. 829 # Should this be supplied to the OSS linker as well? 830 LDFLAGS_DEBUGLEVEL_release="-Wl,-O1" 831 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_DEBUGLEVEL_release" 832 ;; 833 slowdebug ) 834 if test "x$HAS_LINKER_NOW" = "xtrue"; then 835 # do relocations at load 836 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_NOW_FLAG" 837 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_NOW_FLAG" 838 fi 839 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 840 # mark relocations read only 841 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 842 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 843 fi 844 ;; 845 fastdebug ) 846 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 847 # mark relocations read only 848 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 849 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 850 fi 851 ;; 852 * ) 853 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 854 ;; 855 esac 856 fi 857 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 858 LDFLAGS_SOLSTUDIO="-Wl,-z,defs" 859 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_SOLSTUDIO -xildoff -ztext" 860 LDFLAGS_CXX_SOLSTUDIO="-norunpath" 861 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LDFLAGS_CXX_SOLSTUDIO -xnolib" 862 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 863 LDFLAGS_XLC="-b64 -brtl -bnolibpath -bexpall -bernotok" 864 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_XLC" 865 fi 866 867 # Customize LDFLAGS for executables 868 869 LDFLAGS_JDKEXE="${LDFLAGS_JDK}" 870 871 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 872 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 873 LDFLAGS_STACK_SIZE=1048576 874 else 875 LDFLAGS_STACK_SIZE=327680 876 fi 877 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE" 878 elif test "x$OPENJDK_TARGET_OS" = xlinux; then 879 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Wl,--allow-shlib-undefined" 880 fi 881 882 # Customize LDFLAGS for libs 883 LDFLAGS_JDKLIB="${LDFLAGS_JDK}" 884 885 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS}" 886 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 887 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \ 888 -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base" 889 JDKLIB_LIBS="" 890 else 891 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \ 892 -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}" 893 894 # On some platforms (mac) the linker warns about non existing -L dirs. 895 # Add server first if available. Linking aginst client does not always produce the same results. 896 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1. 897 # Default to server for other variants. 898 if test "x$JVM_VARIANT_SERVER" = xtrue; then 899 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 900 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then 901 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client" 902 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then 903 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal" 904 else 905 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server" 906 fi 907 908 JDKLIB_LIBS="-ljava -ljvm" 909 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 910 JDKLIB_LIBS="$JDKLIB_LIBS -lc" 911 fi 912 fi 913 914 AC_SUBST(LDFLAGS_JDKLIB) 915 AC_SUBST(LDFLAGS_JDKEXE) 916 AC_SUBST(JDKLIB_LIBS) 917 AC_SUBST(JDKEXE_LIBS) 918 AC_SUBST(LDFLAGS_CXX_JDK) 919 AC_SUBST(LDFLAGS_HASH_STYLE) 920 921 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB" 922 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE" 923 924 AC_SUBST(LDFLAGS_TESTLIB) 925 AC_SUBST(LDFLAGS_TESTEXE) 926]) 927 928# FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 929# IF_FALSE: [RUN-IF-FALSE]) 930# ------------------------------------------------------------ 931# Check that the C compiler supports an argument 932BASIC_DEFUN_NAMED([FLAGS_C_COMPILER_CHECK_ARGUMENTS], 933 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 934[ 935 AC_MSG_CHECKING([if the C compiler supports "ARG_ARGUMENT"]) 936 supports=yes 937 938 saved_cflags="$CFLAGS" 939 CFLAGS="$CFLAGS ARG_ARGUMENT" 940 AC_LANG_PUSH([C]) 941 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 942 [supports=no]) 943 AC_LANG_POP([C]) 944 CFLAGS="$saved_cflags" 945 946 AC_MSG_RESULT([$supports]) 947 if test "x$supports" = "xyes" ; then 948 : 949 ARG_IF_TRUE 950 else 951 : 952 ARG_IF_FALSE 953 fi 954]) 955 956# FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 957# IF_FALSE: [RUN-IF-FALSE]) 958# ------------------------------------------------------------ 959# Check that the C++ compiler supports an argument 960BASIC_DEFUN_NAMED([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS], 961 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 962[ 963 AC_MSG_CHECKING([if the C++ compiler supports "ARG_ARGUMENT"]) 964 supports=yes 965 966 saved_cxxflags="$CXXFLAGS" 967 CXXFLAGS="$CXXFLAG ARG_ARGUMENT" 968 AC_LANG_PUSH([C++]) 969 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 970 [supports=no]) 971 AC_LANG_POP([C++]) 972 CXXFLAGS="$saved_cxxflags" 973 974 AC_MSG_RESULT([$supports]) 975 if test "x$supports" = "xyes" ; then 976 : 977 ARG_IF_TRUE 978 else 979 : 980 ARG_IF_FALSE 981 fi 982]) 983 984# FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 985# IF_FALSE: [RUN-IF-FALSE]) 986# ------------------------------------------------------------ 987# Check that the C and C++ compilers support an argument 988BASIC_DEFUN_NAMED([FLAGS_COMPILER_CHECK_ARGUMENTS], 989 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 990[ 991 FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT], 992 IF_TRUE: [C_COMP_SUPPORTS="yes"], 993 IF_FALSE: [C_COMP_SUPPORTS="no"]) 994 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT], 995 IF_TRUE: [CXX_COMP_SUPPORTS="yes"], 996 IF_FALSE: [CXX_COMP_SUPPORTS="no"]) 997 998 AC_MSG_CHECKING([if both compilers support "ARG_ARGUMENT"]) 999 supports=no 1000 if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi 1001 1002 AC_MSG_RESULT([$supports]) 1003 if test "x$supports" = "xyes" ; then 1004 : 1005 ARG_IF_TRUE 1006 else 1007 : 1008 ARG_IF_FALSE 1009 fi 1010]) 1011 1012# FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 1013# IF_FALSE: [RUN-IF-FALSE]) 1014# ------------------------------------------------------------ 1015# Check that the linker support an argument 1016BASIC_DEFUN_NAMED([FLAGS_LINKER_CHECK_ARGUMENTS], 1017 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 1018[ 1019 AC_MSG_CHECKING([if linker supports "ARG_ARGUMENT"]) 1020 supports=yes 1021 1022 saved_ldflags="$LDFLAGS" 1023 LDFLAGS="$LDFLAGS ARG_ARGUMENT" 1024 AC_LANG_PUSH([C]) 1025 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], 1026 [], [supports=no]) 1027 AC_LANG_POP([C]) 1028 LDFLAGS="$saved_ldflags" 1029 1030 AC_MSG_RESULT([$supports]) 1031 if test "x$supports" = "xyes" ; then 1032 : 1033 ARG_IF_TRUE 1034 else 1035 : 1036 ARG_IF_FALSE 1037 fi 1038]) 1039 1040AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC], 1041[ 1042 # Some Zero and Shark settings. 1043 # ZERO_ARCHFLAG tells the compiler which mode to build for 1044 case "${OPENJDK_TARGET_CPU}" in 1045 s390) 1046 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31" 1047 ;; 1048 *) 1049 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 1050 esac 1051 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$ZERO_ARCHFLAG], IF_FALSE: [ZERO_ARCHFLAG=""]) 1052 AC_SUBST(ZERO_ARCHFLAG) 1053 1054 # Check that the compiler supports -mX (or -qX on AIX) flags 1055 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 1056 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 1057 IF_TRUE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 1058 IF_FALSE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 1059 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 1060 1061 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors], 1062 [do not consider native warnings to be an error @<:@enabled@:>@])]) 1063 1064 AC_MSG_CHECKING([if native warnings are errors]) 1065 if test "x$enable_warnings_as_errors" = "xyes"; then 1066 AC_MSG_RESULT([yes (explicitely set)]) 1067 WARNINGS_AS_ERRORS=true 1068 elif test "x$enable_warnings_as_errors" = "xno"; then 1069 AC_MSG_RESULT([no]) 1070 WARNINGS_AS_ERRORS=false 1071 elif test "x$enable_warnings_as_errors" = "x"; then 1072 AC_MSG_RESULT([yes (default)]) 1073 WARNINGS_AS_ERRORS=true 1074 else 1075 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument]) 1076 fi 1077 1078 if test "x$WARNINGS_AS_ERRORS" = "xfalse"; then 1079 # Set legacy hotspot variable 1080 HOTSPOT_SET_WARNINGS_AS_ERRORS="WARNINGS_ARE_ERRORS=" 1081 else 1082 HOTSPOT_SET_WARNINGS_AS_ERRORS="" 1083 fi 1084 1085 AC_SUBST(WARNINGS_AS_ERRORS) 1086 AC_SUBST(HOTSPOT_SET_WARNINGS_AS_ERRORS) 1087 1088 case "${TOOLCHAIN_TYPE}" in 1089 microsoft) 1090 DISABLE_WARNING_PREFIX="-wd" 1091 CFLAGS_WARNINGS_ARE_ERRORS="-WX" 1092 ;; 1093 solstudio) 1094 DISABLE_WARNING_PREFIX="-erroff=" 1095 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" 1096 ;; 1097 gcc) 1098 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error 1099 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], 1100 IF_TRUE: [GCC_CAN_DISABLE_WARNINGS=true], 1101 IF_FALSE: [GCC_CAN_DISABLE_WARNINGS=false] 1102 ) 1103 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1104 DISABLE_WARNING_PREFIX="-Wno-" 1105 else 1106 DISABLE_WARNING_PREFIX= 1107 fi 1108 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1109 # Repeate the check for the BUILD_CC 1110 CC_OLD="$CC" 1111 CC="$BUILD_CC" 1112 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], 1113 IF_TRUE: [BUILD_CC_CAN_DISABLE_WARNINGS=true], 1114 IF_FALSE: [BUILD_CC_CAN_DISABLE_WARNINGS=false] 1115 ) 1116 if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1117 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" 1118 else 1119 BUILD_CC_DISABLE_WARNING_PREFIX= 1120 fi 1121 CC="$CC_OLD" 1122 ;; 1123 clang) 1124 DISABLE_WARNING_PREFIX="-Wno-" 1125 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1126 ;; 1127 xlc) 1128 DISABLE_WARNING_PREFIX="-qsuppress=" 1129 CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w" 1130 ;; 1131 esac 1132 AC_SUBST(DISABLE_WARNING_PREFIX) 1133 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 1134]) 1135 1136AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS], 1137[ 1138 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code 1139 # runs afoul of the more aggressive versions of these optimisations. 1140 # Notably, value range propagation now assumes that the this pointer of C++ 1141 # member functions is non-null. 1142 NO_NULL_POINTER_CHECK_CFLAG="-fno-delete-null-pointer-checks" 1143 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_NULL_POINTER_CHECK_CFLAG -Werror], 1144 IF_FALSE: [NO_NULL_POINTER_CHECK_CFLAG=""]) 1145 AC_SUBST([NO_NULL_POINTER_CHECK_CFLAG]) 1146 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse" 1147 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror], 1148 IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""]) 1149 CFLAGS_JDK="${CFLAGS_JDK} ${NO_NULL_POINTER_CHECK_CFLAG} ${NO_LIFETIME_DSE_CFLAG}" 1150 AC_SUBST([NO_LIFETIME_DSE_CFLAG]) 1151]) 1152