flags.m4 revision 1961:f900d5afd9c8
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$TOOLCHAIN_TYPE" = xxlc; then 428 CFLAGS_DEBUG_SYMBOLS="-g" 429 CXXFLAGS_DEBUG_SYMBOLS="-g" 430 fi 431 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 432 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) 433 434 # bounds, memory and behavior checking options 435 if test "x$TOOLCHAIN_TYPE" = xgcc; then 436 case $DEBUG_LEVEL in 437 release ) 438 # no adjustment 439 ;; 440 fastdebug ) 441 # no adjustment 442 ;; 443 slowdebug ) 444 # FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS it 445 # get's added conditionally on whether we produce debug symbols or not. 446 # This is most likely not really correct. 447 448 # Add runtime stack smashing and undefined behavior checks. 449 # Not all versions of gcc support -fstack-protector 450 STACK_PROTECTOR_CFLAG="-fstack-protector-all" 451 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG -Werror], IF_FALSE: [STACK_PROTECTOR_CFLAG=""]) 452 453 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 454 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 455 ;; 456 esac 457 fi 458 459 # Optimization levels 460 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 461 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 462 463 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 464 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global? 465 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr" 466 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr" 467 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr" 468 C_O_FLAG_DEBUG="-xregs=no%frameptr" 469 C_O_FLAG_NONE="-xregs=no%frameptr" 470 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr" 471 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr" 472 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr" 473 CXX_O_FLAG_DEBUG="-xregs=no%frameptr" 474 CXX_O_FLAG_NONE="-xregs=no%frameptr" 475 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 476 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium" 477 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium" 478 fi 479 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 480 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra" 481 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 482 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 483 C_O_FLAG_DEBUG="" 484 C_O_FLAG_NONE="" 485 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra" 486 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 487 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 488 CXX_O_FLAG_DEBUG="" 489 CXX_O_FLAG_NONE="" 490 fi 491 else 492 # The remaining toolchains share opt flags between CC and CXX; 493 # setup for C and duplicate afterwards. 494 if test "x$TOOLCHAIN_TYPE" = xgcc; then 495 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 496 # On MacOSX we optimize for size, something 497 # we should do for all platforms? 498 C_O_FLAG_HIGHEST="-Os" 499 C_O_FLAG_HI="-Os" 500 C_O_FLAG_NORM="-Os" 501 else 502 C_O_FLAG_HIGHEST="-O3" 503 C_O_FLAG_HI="-O3" 504 C_O_FLAG_NORM="-O2" 505 fi 506 C_O_FLAG_DEBUG="-O0" 507 C_O_FLAG_NONE="-O0" 508 elif test "x$TOOLCHAIN_TYPE" = xclang; then 509 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 510 # On MacOSX we optimize for size, something 511 # we should do for all platforms? 512 C_O_FLAG_HIGHEST="-Os" 513 C_O_FLAG_HI="-Os" 514 C_O_FLAG_NORM="-Os" 515 else 516 C_O_FLAG_HIGHEST="-O3" 517 C_O_FLAG_HI="-O3" 518 C_O_FLAG_NORM="-O2" 519 fi 520 C_O_FLAG_DEBUG="-O0" 521 C_O_FLAG_NONE="-O0" 522 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 523 C_O_FLAG_HIGHEST="-O3" 524 C_O_FLAG_HI="-O3 -qstrict" 525 C_O_FLAG_NORM="-O2" 526 C_O_FLAG_DEBUG="-qnoopt" 527 C_O_FLAG_NONE="-qnoopt" 528 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 529 C_O_FLAG_HIGHEST="-O2" 530 C_O_FLAG_HI="-O1" 531 C_O_FLAG_NORM="-O1" 532 C_O_FLAG_DEBUG="-Od" 533 C_O_FLAG_NONE="-Od" 534 fi 535 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 536 CXX_O_FLAG_HI="$C_O_FLAG_HI" 537 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 538 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" 539 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 540 fi 541 542 # Adjust optimization flags according to debug level. 543 case $DEBUG_LEVEL in 544 release ) 545 # no adjustment 546 ;; 547 fastdebug ) 548 # Not quite so much optimization 549 C_O_FLAG_HI="$C_O_FLAG_NORM" 550 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 551 ;; 552 slowdebug ) 553 # Disable optimization 554 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" 555 C_O_FLAG_HI="$C_O_FLAG_DEBUG" 556 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" 557 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" 558 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" 559 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" 560 ;; 561 esac 562 563 AC_SUBST(C_O_FLAG_HIGHEST) 564 AC_SUBST(C_O_FLAG_HI) 565 AC_SUBST(C_O_FLAG_NORM) 566 AC_SUBST(C_O_FLAG_DEBUG) 567 AC_SUBST(C_O_FLAG_NONE) 568 AC_SUBST(CXX_O_FLAG_HIGHEST) 569 AC_SUBST(CXX_O_FLAG_HI) 570 AC_SUBST(CXX_O_FLAG_NORM) 571 AC_SUBST(CXX_O_FLAG_DEBUG) 572 AC_SUBST(CXX_O_FLAG_NONE) 573]) 574 575AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK], 576[ 577 # Special extras... 578 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 579 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 580 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 581 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 582 fi 583 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 584 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 585 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 586 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 587 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 588 fi 589 590 CFLAGS_JDK="${CFLAGS_JDK} $EXTRA_CFLAGS" 591 CXXFLAGS_JDK="${CXXFLAGS_JDK} $EXTRA_CXXFLAGS" 592 LDFLAGS_JDK="${LDFLAGS_JDK} $EXTRA_LDFLAGS" 593 594 ############################################################################### 595 # 596 # Now setup the CFLAGS and LDFLAGS for the JDK build. 597 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. 598 # 599 600 # Setup compiler/platform specific flags into 601 # CFLAGS_JDK - C Compiler flags 602 # CXXFLAGS_JDK - C++ Compiler flags 603 # COMMON_CCXXFLAGS_JDK - common to C and C++ 604 if test "x$TOOLCHAIN_TYPE" = xgcc; 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 $OPENJDK_TARGET_CPU_ARCH in 612 arm ) 613 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing 614 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 615 ;; 616 ppc ) 617 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 618 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 619 ;; 620 * ) 621 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 622 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 623 ;; 624 esac 625 elif test "x$TOOLCHAIN_TYPE" = xclang; then 626 if test "x$OPENJDK_TARGET_OS" = xlinux; then 627 if test "x$OPENJDK_TARGET_CPU" = xx86; then 628 # Force compatibility with i586 on 32 bit intel platforms. 629 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586" 630 fi 631 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 632 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 633 case $OPENJDK_TARGET_CPU_ARCH in 634 ppc ) 635 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 636 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 637 ;; 638 * ) 639 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 640 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing" 641 ;; 642 esac 643 fi 644 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 645 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 646 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 647 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB" 648 fi 649 650 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal" 651 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib" 652 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 653 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 654 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 655 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 656 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK \ 657 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \ 658 -DWIN32_LEAN_AND_MEAN \ 659 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \ 660 -D_WINSOCK_DEPRECATED_NO_WARNINGS \ 661 -DWIN32 -DIAL" 662 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 663 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64" 664 else 665 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86" 666 fi 667 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to 668 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual 669 # studio. 670 if test "x$TOOLCHAIN_VERSION" = "x2010"; then 671 STATIC_CPPLIB_FLAGS="-D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB" 672 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $STATIC_CPPLIB_FLAGS" 673 fi 674 fi 675 676 ############################################################################### 677 678 # Adjust flags according to debug level. 679 case $DEBUG_LEVEL in 680 fastdebug | slowdebug ) 681 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS" 682 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS" 683 JAVAC_FLAGS="$JAVAC_FLAGS -g" 684 ;; 685 release ) 686 ;; 687 * ) 688 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 689 ;; 690 esac 691 692 # Set some common defines. These works for all compilers, but assume 693 # -D is universally accepted. 694 695 # Setup endianness 696 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then 697 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 698 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 699 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h). 700 # Note: -Dmacro is the same as #define macro 1 701 # -Dmacro= is the same as #define macro 702 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 703 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN=" 704 else 705 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN" 706 fi 707 else 708 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they 709 # are defined in the system? 710 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 711 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN=" 712 else 713 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN" 714 fi 715 fi 716 717 # Setup target OS define. Use OS target name but in upper case. 718 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 719 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE" 720 721 # Setup target CPU 722 OPENJDK_TARGET_CCXXFLAGS_JDK="$OPENJDK_TARGET_CCXXFLAGS_JDK \ 723 $ADD_LP64 \ 724 -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY" 725 OPENJDK_BUILD_CCXXFLAGS_JDK="$OPENJDK_BUILD_CCXXFLAGS_JDK \ 726 $OPENJDK_BUILD_ADD_LP64 \ 727 -DARCH='\"$OPENJDK_BUILD_CPU_LEGACY\"' -D$OPENJDK_BUILD_CPU_LEGACY" 728 729 # Setup debug/release defines 730 if test "x$DEBUG_LEVEL" = xrelease; then 731 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG" 732 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 733 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED" 734 fi 735 else 736 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG" 737 fi 738 739 # Set some additional per-OS defines. 740 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 741 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 742 elif test "x$OPENJDK_TARGET_OS" = xbsd; then 743 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE" 744 fi 745 746 # Additional macosx handling 747 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 748 # Setting these parameters makes it an error to link to macosx APIs that are 749 # newer than the given OS version and makes the linked binaries compatible 750 # even if built on a newer version of the OS. 751 # The expected format is X.Y.Z 752 MACOSX_VERSION_MIN=10.7.0 753 AC_SUBST(MACOSX_VERSION_MIN) 754 755 # The macro takes the version with no dots, ex: 1070 756 # Let the flags variables get resolved in make for easier override on make 757 # command line. 758 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 759 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 760 fi 761 762 # Setup some hard coded includes 763 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \ 764 -I${JDK_TOPDIR}/src/java.base/share/native/include \ 765 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \ 766 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include \ 767 -I${JDK_TOPDIR}/src/java.base/share/native/libjava \ 768 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava" 769 770 # The shared libraries are compiled using the picflag. 771 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $OPENJDK_TARGET_CCXXFLAGS_JDK \ 772 $CFLAGS_JDK $EXTRA_CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 773 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $OPENJDK_TARGET_CCXXFLAGS_JDK \ 774 $CXXFLAGS_JDK $EXTRA_CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 775 776 # Executable flags 777 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $OPENJDK_TARGET_CCXXFLAGS_JDK \ 778 $CFLAGS_JDK $EXTRA_CFLAGS_JDK" 779 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $OPENJDK_TARGET_CCXXFLAGS_JDK \ 780 $CXXFLAGS_JDK $EXTRA_CXXFLAGS_JDK" 781 782 # The corresponding flags for building for the build platform. This is still an 783 # approximation, we only need something that runs on this machine when cross 784 # compiling the product. 785 OPENJDK_BUILD_CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $OPENJDK_BUILD_CCXXFLAGS_JDK \ 786 $PICFLAG $CFLAGS_JDKLIB_EXTRA" 787 OPENJDK_BUILD_CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $OPENJDK_BUILD_CCXXFLAGS_JDK \ 788 $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 789 OPENJDK_BUILD_CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $OPENJDK_BUILD_CCXXFLAGS_JDK" 790 OPENJDK_BUILD_CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $OPENJDK_BUILD_CCXXFLAGS_JDK" 791 792 AC_SUBST(CFLAGS_JDKLIB) 793 AC_SUBST(CFLAGS_JDKEXE) 794 AC_SUBST(CXXFLAGS_JDKLIB) 795 AC_SUBST(CXXFLAGS_JDKEXE) 796 AC_SUBST(OPENJDK_BUILD_CFLAGS_JDKLIB) 797 AC_SUBST(OPENJDK_BUILD_CFLAGS_JDKEXE) 798 AC_SUBST(OPENJDK_BUILD_CXXFLAGS_JDKLIB) 799 AC_SUBST(OPENJDK_BUILD_CXXFLAGS_JDKEXE) 800 801 # Flags for compiling test libraries 802 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 803 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 804 805 # Flags for compiling test executables 806 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 807 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 808 809 AC_SUBST(CFLAGS_TESTLIB) 810 AC_SUBST(CFLAGS_TESTEXE) 811 AC_SUBST(CXXFLAGS_TESTLIB) 812 AC_SUBST(CXXFLAGS_TESTEXE) 813 814 # Setup LDFLAGS et al. 815 # 816 817 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 818 LDFLAGS_MICROSOFT="-nologo -opt:ref" 819 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_MICROSOFT -incremental:no" 820 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 821 LDFLAGS_SAFESH="-safeseh" 822 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_SAFESH" 823 fi 824 # TODO: make -debug optional "--disable-full-debug-symbols" 825 LDFLAGS_MICROSOFT_DEBUG="-debug" 826 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_MICROSOFT_DEBUG" 827 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 828 # If this is a --hash-style=gnu system, use --hash-style=both, why? 829 # We have previously set HAS_GNU_HASH if this is the case 830 if test -n "$HAS_GNU_HASH"; then 831 LDFLAGS_HASH_STYLE="-Wl,--hash-style=both" 832 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_HASH_STYLE" 833 fi 834 if test "x$OPENJDK_TARGET_OS" = xlinux; then 835 # And since we now know that the linker is gnu, then add -z defs, to forbid 836 # undefined symbols in object files. 837 LDFLAGS_NO_UNDEF_SYM="-Wl,-z,defs" 838 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_NO_UNDEF_SYM" 839 case $DEBUG_LEVEL in 840 release ) 841 # tell linker to optimize libraries. 842 # Should this be supplied to the OSS linker as well? 843 LDFLAGS_DEBUGLEVEL_release="-Wl,-O1" 844 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_DEBUGLEVEL_release" 845 ;; 846 slowdebug ) 847 if test "x$HAS_LINKER_NOW" = "xtrue"; then 848 # do relocations at load 849 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_NOW_FLAG" 850 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_NOW_FLAG" 851 fi 852 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 853 # mark relocations read only 854 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 855 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 856 fi 857 ;; 858 fastdebug ) 859 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 860 # mark relocations read only 861 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG" 862 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 863 fi 864 ;; 865 * ) 866 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 867 ;; 868 esac 869 fi 870 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 871 LDFLAGS_SOLSTUDIO="-Wl,-z,defs" 872 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_SOLSTUDIO -xildoff -ztext" 873 LDFLAGS_CXX_SOLSTUDIO="-norunpath" 874 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LDFLAGS_CXX_SOLSTUDIO -xnolib" 875 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 876 LDFLAGS_XLC="-b64 -brtl -bnolibpath -bexpall -bernotok" 877 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_XLC" 878 fi 879 880 # Customize LDFLAGS for executables 881 882 LDFLAGS_JDKEXE="${LDFLAGS_JDK}" 883 884 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 885 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 886 LDFLAGS_STACK_SIZE=1048576 887 else 888 LDFLAGS_STACK_SIZE=327680 889 fi 890 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE" 891 elif test "x$OPENJDK_TARGET_OS" = xlinux; then 892 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Wl,--allow-shlib-undefined" 893 fi 894 895 OPENJDK_BUILD_LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE}" 896 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} ${EXTRA_LDFLAGS_JDK}" 897 898 # Customize LDFLAGS for libs 899 LDFLAGS_JDKLIB="${LDFLAGS_JDK}" 900 901 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS}" 902 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 903 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \ 904 -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base" 905 JDKLIB_LIBS="" 906 else 907 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \ 908 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)" 909 910 # On some platforms (mac) the linker warns about non existing -L dirs. 911 # Add server first if available. Linking aginst client does not always produce the same results. 912 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1. 913 # Default to server for other variants. 914 if test "x$JVM_VARIANT_SERVER" = xtrue; then 915 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/server" 916 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then 917 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/client" 918 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then 919 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/minimal" 920 else 921 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/server" 922 fi 923 924 JDKLIB_LIBS="-ljava -ljvm" 925 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 926 JDKLIB_LIBS="$JDKLIB_LIBS -lc" 927 fi 928 929 # When building a buildjdk, it's always only the server variant 930 OPENJDK_BUILD_LDFLAGS_JDKLIB="${OPENJDK_BUILD_LDFLAGS_JDKLIB} \ 931 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base\$(OPENJDK_TARGET_CPU_LIBDIR)/server" 932 fi 933 934 OPENJDK_BUILD_LDFLAGS_JDKLIB="${OPENJDK_BUILD_LDFLAGS_JDKLIB} ${LDFLAGS_JDKLIB}" 935 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${EXTRA_LDFLAGS_JDK}" 936 937 AC_SUBST(LDFLAGS_JDKLIB) 938 AC_SUBST(LDFLAGS_JDKEXE) 939 AC_SUBST(OPENJDK_BUILD_LDFLAGS_JDKLIB) 940 AC_SUBST(OPENJDK_BUILD_LDFLAGS_JDKEXE) 941 AC_SUBST(JDKLIB_LIBS) 942 AC_SUBST(JDKEXE_LIBS) 943 AC_SUBST(LDFLAGS_CXX_JDK) 944 AC_SUBST(LDFLAGS_HASH_STYLE) 945 946 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB" 947 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE" 948 949 AC_SUBST(LDFLAGS_TESTLIB) 950 AC_SUBST(LDFLAGS_TESTEXE) 951]) 952 953# FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 954# IF_FALSE: [RUN-IF-FALSE]) 955# ------------------------------------------------------------ 956# Check that the c and c++ compilers support an argument 957BASIC_DEFUN_NAMED([FLAGS_COMPILER_CHECK_ARGUMENTS], 958 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 959[ 960 AC_MSG_CHECKING([if compiler supports "ARG_ARGUMENT"]) 961 supports=yes 962 963 saved_cflags="$CFLAGS" 964 CFLAGS="$CFLAGS ARG_ARGUMENT" 965 AC_LANG_PUSH([C]) 966 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 967 [supports=no]) 968 AC_LANG_POP([C]) 969 CFLAGS="$saved_cflags" 970 971 saved_cxxflags="$CXXFLAGS" 972 CXXFLAGS="$CXXFLAG ARG_ARGUMENT" 973 AC_LANG_PUSH([C++]) 974 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 975 [supports=no]) 976 AC_LANG_POP([C++]) 977 CXXFLAGS="$saved_cxxflags" 978 979 AC_MSG_RESULT([$supports]) 980 if test "x$supports" = "xyes" ; then 981 : 982 ARG_IF_TRUE 983 else 984 : 985 ARG_IF_FALSE 986 fi 987]) 988 989# FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 990# IF_FALSE: [RUN-IF-FALSE]) 991# ------------------------------------------------------------ 992# Check that the linker support an argument 993BASIC_DEFUN_NAMED([FLAGS_LINKER_CHECK_ARGUMENTS], 994 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 995[ 996 AC_MSG_CHECKING([if linker supports "ARG_ARGUMENT"]) 997 supports=yes 998 999 saved_ldflags="$LDFLAGS" 1000 LDFLAGS="$LDFLAGS ARG_ARGUMENT" 1001 AC_LANG_PUSH([C]) 1002 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], 1003 [], [supports=no]) 1004 AC_LANG_POP([C]) 1005 LDFLAGS="$saved_ldflags" 1006 1007 AC_MSG_RESULT([$supports]) 1008 if test "x$supports" = "xyes" ; then 1009 : 1010 ARG_IF_TRUE 1011 else 1012 : 1013 ARG_IF_FALSE 1014 fi 1015]) 1016 1017AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC], 1018[ 1019 # Some Zero and Shark settings. 1020 # ZERO_ARCHFLAG tells the compiler which mode to build for 1021 case "${OPENJDK_TARGET_CPU}" in 1022 s390) 1023 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31" 1024 ;; 1025 *) 1026 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 1027 esac 1028 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$ZERO_ARCHFLAG], IF_FALSE: [ZERO_ARCHFLAG=""]) 1029 AC_SUBST(ZERO_ARCHFLAG) 1030 1031 # Check that the compiler supports -mX (or -qX on AIX) flags 1032 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 1033 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 1034 IF_TRUE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 1035 IF_FALSE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 1036 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 1037 1038 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors], 1039 [do not consider native warnings to be an error @<:@enabled@:>@])]) 1040 1041 AC_MSG_CHECKING([if native warnings are errors]) 1042 if test "x$enable_warnings_as_errors" = "xyes"; then 1043 AC_MSG_RESULT([yes (explicitely set)]) 1044 WARNINGS_AS_ERRORS=true 1045 elif test "x$enable_warnings_as_errors" = "xno"; then 1046 AC_MSG_RESULT([no]) 1047 WARNINGS_AS_ERRORS=false 1048 elif test "x$enable_warnings_as_errors" = "x"; then 1049 AC_MSG_RESULT([yes (default)]) 1050 WARNINGS_AS_ERRORS=true 1051 else 1052 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument]) 1053 fi 1054 1055 if test "x$WARNINGS_AS_ERRORS" = "xfalse"; then 1056 # Set legacy hotspot variable 1057 HOTSPOT_SET_WARNINGS_AS_ERRORS="WARNINGS_ARE_ERRORS=" 1058 else 1059 HOTSPOT_SET_WARNINGS_AS_ERRORS="" 1060 fi 1061 1062 AC_SUBST(WARNINGS_AS_ERRORS) 1063 AC_SUBST(HOTSPOT_SET_WARNINGS_AS_ERRORS) 1064 1065 case "${TOOLCHAIN_TYPE}" in 1066 microsoft) 1067 DISABLE_WARNING_PREFIX="-wd" 1068 CFLAGS_WARNINGS_ARE_ERRORS="-WX" 1069 ;; 1070 solstudio) 1071 DISABLE_WARNING_PREFIX="-erroff=" 1072 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" 1073 ;; 1074 gcc) 1075 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error 1076 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], 1077 IF_TRUE: [GCC_CAN_DISABLE_WARNINGS=true], 1078 IF_FALSE: [GCC_CAN_DISABLE_WARNINGS=false] 1079 ) 1080 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1081 DISABLE_WARNING_PREFIX="-Wno-" 1082 else 1083 DISABLE_WARNING_PREFIX= 1084 fi 1085 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1086 # Repeate the check for the BUILD_CC 1087 CC_OLD="$CC" 1088 CC="$BUILD_CC" 1089 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], 1090 IF_TRUE: [BUILD_CC_CAN_DISABLE_WARNINGS=true], 1091 IF_FALSE: [BUILD_CC_CAN_DISABLE_WARNINGS=false] 1092 ) 1093 if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1094 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" 1095 else 1096 BUILD_CC_DISABLE_WARNING_PREFIX= 1097 fi 1098 CC="$CC_OLD" 1099 ;; 1100 clang) 1101 DISABLE_WARNING_PREFIX="-Wno-" 1102 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1103 ;; 1104 xlc) 1105 DISABLE_WARNING_PREFIX="-qsuppress=" 1106 CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w" 1107 ;; 1108 esac 1109 AC_SUBST(DISABLE_WARNING_PREFIX) 1110 AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX) 1111 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 1112]) 1113