flags.m4 revision 2748:bdd710ab9e73
1# 2# Copyright (c) 2011, 2017, 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################################################################################ 27# 28# Setup ABI profile (for arm) 29# 30AC_DEFUN([FLAGS_SETUP_ABI_PROFILE], 31[ 32 AC_ARG_WITH(abi-profile, [AS_HELP_STRING([--with-abi-profile], 33 [specify ABI profile for ARM builds (arm-vfp-sflt,arm-vfp-hflt,arm-sflt, armv5-vfp-sflt,armv6-vfp-hflt,arm64,aarch64) @<:@toolchain dependent@:>@ ])]) 34 35 if test "x$with_abi_profile" != x; then 36 if test "x$OPENJDK_TARGET_CPU" != xarm && \ 37 test "x$OPENJDK_TARGET_CPU" != xaarch64; then 38 AC_MSG_ERROR([--with-abi-profile only available on arm/aarch64]) 39 fi 40 41 OPENJDK_TARGET_ABI_PROFILE=$with_abi_profile 42 AC_MSG_CHECKING([for ABI profle]) 43 AC_MSG_RESULT([$OPENJDK_TARGET_ABI_PROFILE]) 44 45 if test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm-vfp-sflt; then 46 ARM_FLOAT_TYPE=vfp-sflt 47 ARM_ARCH_TYPE_FLAGS='-march=armv7-a -mthumb' 48 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm-vfp-hflt; then 49 ARM_FLOAT_TYPE=vfp-hflt 50 ARM_ARCH_TYPE_FLAGS='-march=armv7-a -mthumb' 51 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm-sflt; then 52 ARM_FLOAT_TYPE=sflt 53 ARM_ARCH_TYPE_FLAGS='-march=armv5t -marm' 54 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarmv5-vfp-sflt; then 55 ARM_FLOAT_TYPE=vfp-sflt 56 ARM_ARCH_TYPE_FLAGS='-march=armv5t -marm' 57 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarmv6-vfp-hflt; then 58 ARM_FLOAT_TYPE=vfp-hflt 59 ARM_ARCH_TYPE_FLAGS='-march=armv6 -marm' 60 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm64; then 61 # No special flags, just need to trigger setting JDK_ARCH_ABI_PROP_NAME 62 ARM_FLOAT_TYPE= 63 ARM_ARCH_TYPE_FLAGS= 64 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xaarch64; then 65 # No special flags, just need to trigger setting JDK_ARCH_ABI_PROP_NAME 66 ARM_FLOAT_TYPE= 67 ARM_ARCH_TYPE_FLAGS= 68 else 69 AC_MSG_ERROR([Invalid ABI profile: "$OPENJDK_TARGET_ABI_PROFILE"]) 70 fi 71 72 if test "x$ARM_FLOAT_TYPE" = xvfp-sflt; then 73 ARM_FLOAT_TYPE_FLAGS='-mfloat-abi=softfp -mfpu=vfp -DFLOAT_ARCH=-vfp-sflt' 74 elif test "x$ARM_FLOAT_TYPE" = xvfp-hflt; then 75 ARM_FLOAT_TYPE_FLAGS='-mfloat-abi=hard -mfpu=vfp -DFLOAT_ARCH=-vfp-hflt' 76 elif test "x$ARM_FLOAT_TYPE" = xsflt; then 77 ARM_FLOAT_TYPE_FLAGS='-msoft-float -mfpu=vfp' 78 fi 79 AC_MSG_CHECKING([for $ARM_FLOAT_TYPE floating point flags]) 80 AC_MSG_RESULT([$ARM_FLOAT_TYPE_FLAGS]) 81 82 AC_MSG_CHECKING([for arch type flags]) 83 AC_MSG_RESULT([$ARM_ARCH_TYPE_FLAGS]) 84 85 # Now set JDK_ARCH_ABI_PROP_NAME. This is equivalent to the last part of the 86 # autoconf target triplet. 87 [ JDK_ARCH_ABI_PROP_NAME=`$ECHO $OPENJDK_TARGET_AUTOCONF_NAME | $SED -e 's/.*-\([^-]*\)$/\1/'` ] 88 # Sanity check that it is a known ABI. 89 if test "x$JDK_ARCH_ABI_PROP_NAME" != xgnu && \ 90 test "x$JDK_ARCH_ABI_PROP_NAME" != xgnueabi && \ 91 test "x$JDK_ARCH_ABI_PROP_NAME" != xgnueabihf; then 92 AC_MSG_WARN([Unknown autoconf target triplet ABI: "$JDK_ARCH_ABI_PROP_NAME"]) 93 fi 94 AC_MSG_CHECKING([for ABI property name]) 95 AC_MSG_RESULT([$JDK_ARCH_ABI_PROP_NAME]) 96 AC_SUBST(JDK_ARCH_ABI_PROP_NAME) 97 98 # Pass these on to the open part of configure as if they were set using 99 # --with-extra-c[xx]flags. 100 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS" 101 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS" 102 # Get rid of annoying "note: the mangling of 'va_list' has changed in GCC 4.4" 103 # FIXME: This should not really be set using extra_cflags. 104 if test "x$OPENJDK_TARGET_CPU" = xarm; then 105 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-psabi" 106 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -Wno-psabi" 107 fi 108 # Also add JDK_ARCH_ABI_PROP_NAME define, but only to CFLAGS. 109 EXTRA_CFLAGS="$EXTRA_CFLAGS -DJDK_ARCH_ABI_PROP_NAME='\"\$(JDK_ARCH_ABI_PROP_NAME)\"'" 110 # And pass the architecture flags to the linker as well 111 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS" 112 fi 113 114 # When building with an abi profile, the name of that profile is appended on the 115 # bundle platform, which is used in bundle names. 116 if test "x$OPENJDK_TARGET_ABI_PROFILE" != x; then 117 OPENJDK_TARGET_BUNDLE_PLATFORM="$OPENJDK_TARGET_OS_BUNDLE-$OPENJDK_TARGET_ABI_PROFILE" 118 fi 119]) 120 121# Reset the global CFLAGS/LDFLAGS variables and initialize them with the 122# corresponding configure arguments instead 123AC_DEFUN_ONCE([FLAGS_SETUP_USER_SUPPLIED_FLAGS], 124[ 125 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then 126 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags]) 127 fi 128 129 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then 130 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags]) 131 fi 132 133 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then 134 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags]) 135 fi 136 137 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags], 138 [extra flags to be used when compiling jdk c-files])]) 139 140 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags], 141 [extra flags to be used when compiling jdk c++-files])]) 142 143 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags], 144 [extra flags to be used when linking jdk])]) 145 146 EXTRA_CFLAGS="$with_extra_cflags" 147 EXTRA_CXXFLAGS="$with_extra_cxxflags" 148 EXTRA_LDFLAGS="$with_extra_ldflags" 149 150 AC_SUBST(EXTRA_CFLAGS) 151 AC_SUBST(EXTRA_CXXFLAGS) 152 AC_SUBST(EXTRA_LDFLAGS) 153 154 # The global CFLAGS and LDLAGS variables are used by configure tests and 155 # should include the extra parameters 156 CFLAGS="$EXTRA_CFLAGS" 157 CXXFLAGS="$EXTRA_CXXFLAGS" 158 LDFLAGS="$EXTRA_LDFLAGS" 159 CPPFLAGS="" 160]) 161 162# Setup the sysroot flags and add them to global CFLAGS and LDFLAGS so 163# that configure can use them while detecting compilers. 164# TOOLCHAIN_TYPE is available here. 165# Param 1 - Optional prefix to all variables. (e.g BUILD_) 166AC_DEFUN([FLAGS_SETUP_SYSROOT_FLAGS], 167[ 168 if test "x[$]$1SYSROOT" != "x"; then 169 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 170 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 171 # Solaris Studio does not have a concept of sysroot. Instead we must 172 # make sure the default include and lib dirs are appended to each 173 # compile and link command line. Must also add -I-xbuiltin to enable 174 # inlining of system functions and intrinsics. 175 $1SYSROOT_CFLAGS="-I-xbuiltin -I[$]$1SYSROOT/usr/include" 176 $1SYSROOT_LDFLAGS="-L[$]$1SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \ 177 -L[$]$1SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR" 178 fi 179 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 180 $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT" 181 $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT" 182 elif test "x$TOOLCHAIN_TYPE" = xclang; then 183 $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT" 184 $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT" 185 fi 186 # The global CFLAGS and LDFLAGS variables need these for configure to function 187 $1CFLAGS="[$]$1CFLAGS [$]$1SYSROOT_CFLAGS" 188 $1CPPFLAGS="[$]$1CPPFLAGS [$]$1SYSROOT_CFLAGS" 189 $1CXXFLAGS="[$]$1CXXFLAGS [$]$1SYSROOT_CFLAGS" 190 $1LDFLAGS="[$]$1LDFLAGS [$]$1SYSROOT_LDFLAGS" 191 fi 192 193 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 194 # We also need -iframework<path>/System/Library/Frameworks 195 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 196 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 197 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework 198 # set this here so it doesn't have to be peppered throughout the forest 199 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 200 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 201 fi 202 203 AC_SUBST($1SYSROOT_CFLAGS) 204 AC_SUBST($1SYSROOT_LDFLAGS) 205]) 206 207AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS], 208[ 209 # COMPILER_TARGET_BITS_FLAG : option for selecting 32- or 64-bit output 210 # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler 211 # COMPILER_BINDCMD_FILE_FLAG : option for specifying a file which saves the binder 212 # commands produced by the link step (currently AIX only) 213 if test "x$TOOLCHAIN_TYPE" = xxlc; then 214 COMPILER_TARGET_BITS_FLAG="-q" 215 COMPILER_COMMAND_FILE_FLAG="-f" 216 COMPILER_BINDCMD_FILE_FLAG="-bloadmap:" 217 else 218 COMPILER_TARGET_BITS_FLAG="-m" 219 COMPILER_COMMAND_FILE_FLAG="@" 220 COMPILER_BINDCMD_FILE_FLAG="" 221 222 # The solstudio linker does not support @-files. 223 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 224 COMPILER_COMMAND_FILE_FLAG= 225 fi 226 227 # Check if @file is supported by gcc 228 if test "x$TOOLCHAIN_TYPE" = xgcc; then 229 AC_MSG_CHECKING([if @file is supported by gcc]) 230 # Extra emtpy "" to prevent ECHO from interpreting '--version' as argument 231 $ECHO "" "--version" > command.file 232 if $CXX @command.file 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then 233 AC_MSG_RESULT(yes) 234 COMPILER_COMMAND_FILE_FLAG="@" 235 else 236 AC_MSG_RESULT(no) 237 COMPILER_COMMAND_FILE_FLAG= 238 fi 239 $RM command.file 240 fi 241 fi 242 AC_SUBST(COMPILER_TARGET_BITS_FLAG) 243 AC_SUBST(COMPILER_COMMAND_FILE_FLAG) 244 AC_SUBST(COMPILER_BINDCMD_FILE_FLAG) 245 246 # FIXME: figure out if we should select AR flags depending on OS or toolchain. 247 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 248 ARFLAGS="-r" 249 elif test "x$OPENJDK_TARGET_OS" = xaix; then 250 ARFLAGS="-X64" 251 elif test "x$OPENJDK_TARGET_OS" = xwindows; then 252 # lib.exe is used as AR to create static libraries. 253 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT" 254 else 255 ARFLAGS="" 256 fi 257 AC_SUBST(ARFLAGS) 258 259 ## Setup strip. 260 # FIXME: should this really be per platform, or should it be per toolchain type? 261 # strip is not provided by clang or solstudio; so guessing platform makes most sense. 262 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD. 263 if test "x$OPENJDK_TARGET_OS" = xlinux; then 264 STRIPFLAGS="-g" 265 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then 266 STRIPFLAGS="-x" 267 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then 268 STRIPFLAGS="-S" 269 elif test "x$OPENJDK_TARGET_OS" = xaix; then 270 STRIPFLAGS="-X32_64" 271 fi 272 273 AC_SUBST(STRIPFLAGS) 274 275 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 276 CC_OUT_OPTION=-Fo 277 EXE_OUT_OPTION=-out: 278 LD_OUT_OPTION=-out: 279 AR_OUT_OPTION=-out: 280 else 281 # The option used to specify the target .o,.a or .so file. 282 # When compiling, how to specify the to be created object file. 283 CC_OUT_OPTION='-o$(SPACE)' 284 # When linking, how to specify the to be created executable. 285 EXE_OUT_OPTION='-o$(SPACE)' 286 # When linking, how to specify the to be created dynamically linkable library. 287 LD_OUT_OPTION='-o$(SPACE)' 288 # When archiving, how to specify the to be create static archive for object files. 289 AR_OUT_OPTION='rcs$(SPACE)' 290 fi 291 AC_SUBST(CC_OUT_OPTION) 292 AC_SUBST(EXE_OUT_OPTION) 293 AC_SUBST(LD_OUT_OPTION) 294 AC_SUBST(AR_OUT_OPTION) 295 296 # On Windows, we need to set RC flags. 297 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 298 RC_FLAGS="-nologo -l0x409" 299 JVM_RCFLAGS="-nologo" 300 if test "x$DEBUG_LEVEL" = xrelease; then 301 RC_FLAGS="$RC_FLAGS -DNDEBUG" 302 JVM_RCFLAGS="$JVM_RCFLAGS -DNDEBUG" 303 fi 304 305 # The version variables used to create RC_FLAGS may be overridden 306 # in a custom configure script, or possibly the command line. 307 # Let those variables be expanded at make time in spec.gmk. 308 # The \$ are escaped to the shell, and the $(...) variables 309 # are evaluated by make. 310 RC_FLAGS="$RC_FLAGS \ 311 -D\"JDK_VERSION_STRING=\$(VERSION_STRING)\" \ 312 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \ 313 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \ 314 -D\"JDK_VER=\$(VERSION_NUMBER)\" \ 315 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \ 316 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(VERSION_MAJOR)\" \ 317 -D\"JDK_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\"" 318 319 JVM_RCFLAGS="$JVM_RCFLAGS \ 320 -D\"HS_BUILD_ID=\$(VERSION_STRING)\" \ 321 -D\"HS_COMPANY=\$(COMPANY_NAME)\" \ 322 -D\"JDK_DOTVER=\$(VERSION_NUMBER_FOUR_POSITIONS)\" \ 323 -D\"HS_COPYRIGHT=Copyright $COPYRIGHT_YEAR\" \ 324 -D\"HS_NAME=\$(PRODUCT_NAME) \$(VERSION_SHORT)\" \ 325 -D\"JDK_VER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\" \ 326 -D\"HS_FNAME=jvm.dll\" \ 327 -D\"HS_INTERNAL_NAME=jvm\"" 328 fi 329 AC_SUBST(RC_FLAGS) 330 AC_SUBST(JVM_RCFLAGS) 331 332 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 333 # silence copyright notice and other headers. 334 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo" 335 fi 336]) 337 338AC_DEFUN([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS], 339[ 340 ############################################################################### 341 # 342 # How to compile shared libraries. 343 # 344 345 if test "x$TOOLCHAIN_TYPE" = xgcc; then 346 PICFLAG="-fPIC" 347 C_FLAG_REORDER='' 348 CXX_FLAG_REORDER='' 349 350 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 351 # Linking is different on MacOSX 352 if test "x$STATIC_BUILD" = xtrue; then 353 SHARED_LIBRARY_FLAGS ='-undefined dynamic_lookup' 354 else 355 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 356 JVM_CFLAGS="$JVM_CFLAGS $PICFLAG" 357 fi 358 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path$(or [$]1,/.)' 359 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 360 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' 361 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1' 362 else 363 # Default works for linux, might work on other platforms as well. 364 SHARED_LIBRARY_FLAGS='-shared' 365 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1' 366 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 367 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 368 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 369 fi 370 elif test "x$TOOLCHAIN_TYPE" = xclang; then 371 C_FLAG_REORDER='' 372 CXX_FLAG_REORDER='' 373 374 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 375 # Linking is different on MacOSX 376 PICFLAG='' 377 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG" 378 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path$(or [$]1,/.)' 379 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 380 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1' 381 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1' 382 383 if test "x$STATIC_BUILD" = xfalse; then 384 JVM_CFLAGS="$JVM_CFLAGS -fPIC" 385 fi 386 else 387 # Default works for linux, might work on other platforms as well. 388 PICFLAG='-fPIC' 389 SHARED_LIBRARY_FLAGS='-shared' 390 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1' 391 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1' 392 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1' 393 394 # arm specific settings 395 if test "x$OPENJDK_TARGET_CPU" = "xarm"; then 396 # '-Wl,-z,origin' isn't used on arm. 397 SET_SHARED_LIBRARY_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1' 398 else 399 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN" 400 fi 401 402 fi 403 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 404 if test "x$OPENJDK_TARGET_CPU" = xsparcv9; then 405 PICFLAG="-xcode=pic32" 406 else 407 PICFLAG="-KPIC" 408 fi 409 C_FLAG_REORDER='-xF' 410 CXX_FLAG_REORDER='-xF' 411 SHARED_LIBRARY_FLAGS="-G" 412 SET_EXECUTABLE_ORIGIN='-R\$$ORIGIN[$]1' 413 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN" 414 SET_SHARED_LIBRARY_NAME='-h [$]1' 415 SET_SHARED_LIBRARY_MAPFILE='-M[$]1' 416 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 417 # '-qpic' defaults to 'qpic=small'. This means that the compiler generates only 418 # one instruction for accessing the TOC. If the TOC grows larger than 64K, the linker 419 # will have to patch this single instruction with a call to some out-of-order code which 420 # does the load from the TOC. This is of course slow. But in that case we also would have 421 # to use '-bbigtoc' for linking anyway so we could also change the PICFLAG to 'qpic=large'. 422 # With 'qpic=large' the compiler will by default generate a two-instruction sequence which 423 # can be patched directly by the linker and does not require a jump to out-of-order code. 424 # Another alternative instead of using 'qpic=large -bbigtoc' may be to use '-qminimaltoc' 425 # instead. This creates a distinct TOC for every compilation unit (and thus requires two 426 # loads for accessing a global variable). But there are rumors that this may be seen as a 427 # 'performance feature' because of improved code locality of the symbols used in a 428 # compilation unit. 429 PICFLAG="-qpic" 430 JVM_CFLAGS="$JVM_CFLAGS $PICFLAG" 431 C_FLAG_REORDER='' 432 CXX_FLAG_REORDER='' 433 SHARED_LIBRARY_FLAGS="-qmkshrobj -bM:SRE -bnoentry" 434 SET_EXECUTABLE_ORIGIN="" 435 SET_SHARED_LIBRARY_ORIGIN='' 436 SET_SHARED_LIBRARY_NAME='' 437 SET_SHARED_LIBRARY_MAPFILE='' 438 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 439 PICFLAG="" 440 C_FLAG_REORDER='' 441 CXX_FLAG_REORDER='' 442 SHARED_LIBRARY_FLAGS="-dll" 443 SET_EXECUTABLE_ORIGIN='' 444 SET_SHARED_LIBRARY_ORIGIN='' 445 SET_SHARED_LIBRARY_NAME='' 446 SET_SHARED_LIBRARY_MAPFILE='-def:[$]1' 447 fi 448 449 AC_SUBST(C_FLAG_REORDER) 450 AC_SUBST(CXX_FLAG_REORDER) 451 AC_SUBST(SET_EXECUTABLE_ORIGIN) 452 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN) 453 AC_SUBST(SET_SHARED_LIBRARY_NAME) 454 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE) 455 AC_SUBST(SHARED_LIBRARY_FLAGS) 456 457 # The (cross) compiler is now configured, we can now test capabilities 458 # of the target platform. 459]) 460 461# Documentation on common flags used for solstudio in HIGHEST. 462# 463# WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be 464# done with care, there are some assumptions below that need to 465# be understood about the use of pointers, and IEEE behavior. 466# 467# -fns: Use non-standard floating point mode (not IEEE 754) 468# -fsimple: Do some simplification of floating point arithmetic (not IEEE 754) 469# -fsingle: Use single precision floating point with 'float' 470# -xalias_level=basic: Assume memory references via basic pointer types do not alias 471# (Source with excessing pointer casting and data access with mixed 472# pointer types are not recommended) 473# -xbuiltin=%all: Use intrinsic or inline versions for math/std functions 474# (If you expect perfect errno behavior, do not use this) 475# -xdepend: Loop data dependency optimizations (need -xO3 or higher) 476# -xrestrict: Pointer parameters to functions do not overlap 477# (Similar to -xalias_level=basic usage, but less obvious sometimes. 478# If you pass in multiple pointers to the same data, do not use this) 479# -xlibmil: Inline some library routines 480# (If you expect perfect errno behavior, do not use this) 481# -xlibmopt: Use optimized math routines (CURRENTLY DISABLED) 482# (If you expect perfect errno behavior, do not use this) 483# Can cause undefined external on Solaris 8 X86 on __sincos, removing for now 484 485 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore. 486 # Bug? 487 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then 488 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s" 489 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s" 490 #fi 491 492AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION], 493[ 494 495 ############################################################################### 496 # 497 # Setup the opt flags for different compilers 498 # and different operating systems. 499 # 500 501 # FIXME: this was indirectly the old default, but just inherited. 502 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 503 # C_FLAG_DEPS="-MMD -MF" 504 # fi 505 506 # Generate make dependency files 507 if test "x$TOOLCHAIN_TYPE" = xgcc; then 508 C_FLAG_DEPS="-MMD -MF" 509 elif test "x$TOOLCHAIN_TYPE" = xclang; then 510 C_FLAG_DEPS="-MMD -MF" 511 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 512 C_FLAG_DEPS="-xMMD -xMF" 513 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 514 C_FLAG_DEPS="-qmakedep=gcc -MF" 515 fi 516 CXX_FLAG_DEPS="$C_FLAG_DEPS" 517 AC_SUBST(C_FLAG_DEPS) 518 AC_SUBST(CXX_FLAG_DEPS) 519 520 # Debug symbols 521 if test "x$TOOLCHAIN_TYPE" = xgcc; then 522 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then 523 # reduce from default "-g2" option to save space 524 CFLAGS_DEBUG_SYMBOLS="-g1" 525 CXXFLAGS_DEBUG_SYMBOLS="-g1" 526 else 527 CFLAGS_DEBUG_SYMBOLS="-g" 528 CXXFLAGS_DEBUG_SYMBOLS="-g" 529 fi 530 elif test "x$TOOLCHAIN_TYPE" = xclang; then 531 CFLAGS_DEBUG_SYMBOLS="-g" 532 CXXFLAGS_DEBUG_SYMBOLS="-g" 533 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 534 CFLAGS_DEBUG_SYMBOLS="-g -xs" 535 # -g0 enables debug symbols without disabling inlining. 536 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs" 537 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 538 CFLAGS_DEBUG_SYMBOLS="-g" 539 CXXFLAGS_DEBUG_SYMBOLS="-g" 540 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 541 CFLAGS_DEBUG_SYMBOLS="-Zi" 542 CXXFLAGS_DEBUG_SYMBOLS="-Zi" 543 fi 544 AC_SUBST(CFLAGS_DEBUG_SYMBOLS) 545 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS) 546 547 # Debug symbols for JVM_CFLAGS 548 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 549 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -xs" 550 if test "x$DEBUG_LEVEL" = xslowdebug; then 551 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g" 552 else 553 # -g0 does not disable inlining, which -g does. 554 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g0" 555 fi 556 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 557 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -Z7 -d2Zi+" 558 else 559 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g" 560 fi 561 AC_SUBST(JVM_CFLAGS_SYMBOLS) 562 563 # bounds, memory and behavior checking options 564 if test "x$TOOLCHAIN_TYPE" = xgcc; then 565 case $DEBUG_LEVEL in 566 release ) 567 # no adjustment 568 ;; 569 fastdebug ) 570 # no adjustment 571 ;; 572 slowdebug ) 573 # FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS/JVM_CFLAGS_SYMBOLS it 574 # get's added conditionally on whether we produce debug symbols or not. 575 # This is most likely not really correct. 576 577 # Add runtime stack smashing and undefined behavior checks. 578 # Not all versions of gcc support -fstack-protector 579 STACK_PROTECTOR_CFLAG="-fstack-protector-all" 580 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG -Werror], IF_FALSE: [STACK_PROTECTOR_CFLAG=""]) 581 582 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 583 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 584 if test "x$STACK_PROTECTOR_CFLAG" != x; then 585 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS $STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1" 586 fi 587 ;; 588 esac 589 fi 590 591 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 592 if test "x$DEBUG_LEVEL" != xrelease; then 593 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 594 JVM_CFLAGS="$JVM_CFLAGS -homeparams" 595 fi 596 fi 597 fi 598 599 # Optimization levels 600 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 601 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil" 602 603 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 604 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global? 605 C_O_FLAG_HIGHEST_JVM="-xO4" 606 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr" 607 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr" 608 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr" 609 C_O_FLAG_DEBUG="-xregs=no%frameptr" 610 C_O_FLAG_DEBUG_JVM="" 611 C_O_FLAG_NONE="-xregs=no%frameptr" 612 CXX_O_FLAG_HIGHEST_JVM="-xO4" 613 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr" 614 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr" 615 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr" 616 CXX_O_FLAG_DEBUG="-xregs=no%frameptr" 617 CXX_O_FLAG_DEBUG_JVM="" 618 CXX_O_FLAG_NONE="-xregs=no%frameptr" 619 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then 620 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium" 621 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium" 622 fi 623 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 624 C_O_FLAG_HIGHEST_JVM="-xO4" 625 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra" 626 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0" 627 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0" 628 C_O_FLAG_DEBUG="" 629 C_O_FLAG_DEBUG_JVM="" 630 C_O_FLAG_NONE="" 631 CXX_O_FLAG_HIGHEST_JVM="-xO4" 632 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra" 633 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 634 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0" 635 CXX_O_FLAG_DEBUG="" 636 CXX_O_FLAG_DEBUG_JVM="" 637 CXX_O_FLAG_NONE="" 638 fi 639 else 640 # The remaining toolchains share opt flags between CC and CXX; 641 # setup for C and duplicate afterwards. 642 if test "x$TOOLCHAIN_TYPE" = xgcc; then 643 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 644 # On MacOSX we optimize for size, something 645 # we should do for all platforms? 646 C_O_FLAG_HIGHEST_JVM="-Os" 647 C_O_FLAG_HIGHEST="-Os" 648 C_O_FLAG_HI="-Os" 649 C_O_FLAG_NORM="-Os" 650 C_O_FLAG_SIZE="-Os" 651 else 652 C_O_FLAG_HIGHEST_JVM="-O3" 653 C_O_FLAG_HIGHEST="-O3" 654 C_O_FLAG_HI="-O3" 655 C_O_FLAG_NORM="-O2" 656 C_O_FLAG_SIZE="-Os" 657 fi 658 C_O_FLAG_DEBUG="-O0" 659 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 660 C_O_FLAG_DEBUG_JVM="" 661 elif test "x$OPENJDK_TARGET_OS" = xlinux; then 662 C_O_FLAG_DEBUG_JVM="-O0" 663 fi 664 C_O_FLAG_NONE="-O0" 665 elif test "x$TOOLCHAIN_TYPE" = xclang; then 666 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 667 # On MacOSX we optimize for size, something 668 # we should do for all platforms? 669 C_O_FLAG_HIGHEST_JVM="-Os" 670 C_O_FLAG_HIGHEST="-Os" 671 C_O_FLAG_HI="-Os" 672 C_O_FLAG_NORM="-Os" 673 C_O_FLAG_SIZE="-Os" 674 else 675 C_O_FLAG_HIGHEST_JVM="-O3" 676 C_O_FLAG_HIGHEST="-O3" 677 C_O_FLAG_HI="-O3" 678 C_O_FLAG_NORM="-O2" 679 C_O_FLAG_SIZE="-Os" 680 fi 681 C_O_FLAG_DEBUG="-O0" 682 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 683 C_O_FLAG_DEBUG_JVM="" 684 elif test "x$OPENJDK_TARGET_OS" = xlinux; then 685 C_O_FLAG_DEBUG_JVM="-O0" 686 fi 687 C_O_FLAG_NONE="-O0" 688 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 689 C_O_FLAG_HIGHEST_JVM="-O3 -qhot=level=1 -qinline -qinlglue" 690 C_O_FLAG_HIGHEST="-O3 -qhot=level=1 -qinline -qinlglue" 691 C_O_FLAG_HI="-O3 -qinline -qinlglue" 692 C_O_FLAG_NORM="-O2" 693 C_O_FLAG_DEBUG="-qnoopt" 694 # FIXME: Value below not verified. 695 C_O_FLAG_DEBUG_JVM="" 696 C_O_FLAG_NONE="-qnoopt" 697 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 698 C_O_FLAG_HIGHEST_JVM="-O2 -Oy-" 699 C_O_FLAG_HIGHEST="-O2" 700 C_O_FLAG_HI="-O1" 701 C_O_FLAG_NORM="-O1" 702 C_O_FLAG_DEBUG="-Od" 703 C_O_FLAG_DEBUG_JVM="" 704 C_O_FLAG_NONE="-Od" 705 C_O_FLAG_SIZE="-Os" 706 fi 707 CXX_O_FLAG_HIGHEST_JVM="$C_O_FLAG_HIGHEST_JVM" 708 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST" 709 CXX_O_FLAG_HI="$C_O_FLAG_HI" 710 CXX_O_FLAG_NORM="$C_O_FLAG_NORM" 711 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG" 712 CXX_O_FLAG_DEBUG_JVM="$C_O_FLAG_DEBUG_JVM" 713 CXX_O_FLAG_NONE="$C_O_FLAG_NONE" 714 CXX_O_FLAG_SIZE="$C_O_FLAG_SIZE" 715 fi 716 717 # Adjust optimization flags according to debug level. 718 case $DEBUG_LEVEL in 719 release ) 720 # no adjustment 721 ;; 722 fastdebug ) 723 # Not quite so much optimization 724 C_O_FLAG_HI="$C_O_FLAG_NORM" 725 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM" 726 ;; 727 slowdebug ) 728 # Disable optimization 729 C_O_FLAG_HIGHEST_JVM="$C_O_FLAG_DEBUG_JVM" 730 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG" 731 C_O_FLAG_HI="$C_O_FLAG_DEBUG" 732 C_O_FLAG_NORM="$C_O_FLAG_DEBUG" 733 C_O_FLAG_SIZE="$C_O_FLAG_DEBUG" 734 CXX_O_FLAG_HIGHEST_JVM="$CXX_O_FLAG_DEBUG_JVM" 735 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG" 736 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG" 737 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG" 738 CXX_O_FLAG_SIZE="$CXX_O_FLAG_DEBUG" 739 ;; 740 esac 741 742 AC_SUBST(C_O_FLAG_HIGHEST_JVM) 743 AC_SUBST(C_O_FLAG_HIGHEST) 744 AC_SUBST(C_O_FLAG_HI) 745 AC_SUBST(C_O_FLAG_NORM) 746 AC_SUBST(C_O_FLAG_DEBUG) 747 AC_SUBST(C_O_FLAG_NONE) 748 AC_SUBST(C_O_FLAG_SIZE) 749 AC_SUBST(CXX_O_FLAG_HIGHEST_JVM) 750 AC_SUBST(CXX_O_FLAG_HIGHEST) 751 AC_SUBST(CXX_O_FLAG_HI) 752 AC_SUBST(CXX_O_FLAG_NORM) 753 AC_SUBST(CXX_O_FLAG_DEBUG) 754 AC_SUBST(CXX_O_FLAG_NONE) 755 AC_SUBST(CXX_O_FLAG_SIZE) 756]) 757 758 759AC_DEFUN([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK], 760[ 761 762 FLAGS_SETUP_ABI_PROFILE 763 764 # Optional POSIX functionality needed by the JVM 765 # 766 # Check if clock_gettime is available and in which library. This indicates 767 # availability of CLOCK_MONOTONIC for hotspot. But we don't need to link, so 768 # don't let it update LIBS. 769 save_LIBS="$LIBS" 770 AC_SEARCH_LIBS(clock_gettime, rt, [HAS_CLOCK_GETTIME=true], []) 771 if test "x$LIBS" = "x-lrt "; then 772 CLOCK_GETTIME_IN_LIBRT=true 773 fi 774 LIBS="$save_LIBS" 775 776 FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK_HELPER([TARGET]) 777 FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK_HELPER([BUILD], [OPENJDK_BUILD_]) 778 779 # Tests are only ever compiled for TARGET 780 # Flags for compiling test libraries 781 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA" 782 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA" 783 784 # Flags for compiling test executables 785 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK" 786 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK" 787 788 AC_SUBST(CFLAGS_TESTLIB) 789 AC_SUBST(CFLAGS_TESTEXE) 790 AC_SUBST(CXXFLAGS_TESTLIB) 791 AC_SUBST(CXXFLAGS_TESTEXE) 792 793 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB" 794 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE $JAVA_BASE_LDFLAGS" 795 796 AC_SUBST(LDFLAGS_TESTLIB) 797 AC_SUBST(LDFLAGS_TESTEXE) 798 799]) 800 801################################################################################ 802# $1 - Either BUILD or TARGET to pick the correct OS/CPU variables to check 803# conditionals against. 804# $2 - Optional prefix for each variable defined. 805AC_DEFUN([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK_HELPER], 806[ 807 # Special extras... 808 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 809 if test "x$OPENJDK_$1_CPU_ARCH" = "xsparc"; then 810 $2CFLAGS_JDKLIB_EXTRA="${$2CFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 811 $2CXXFLAGS_JDKLIB_EXTRA="${$2CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl" 812 fi 813 $2CFLAGS_JDKLIB_EXTRA="${$2CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 814 $2CXXFLAGS_JDKLIB_EXTRA="${$2CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt" 815 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 816 $2CFLAGS_JDK="${$2CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 817 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt" 818 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 819 $2CXXSTD_CXXFLAG="-std=gnu++98" 820 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [[$]$2CXXSTD_CXXFLAG -Werror], 821 IF_FALSE: [$2CXXSTD_CXXFLAG=""]) 822 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}" 823 $2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}" 824 AC_SUBST($2CXXSTD_CXXFLAG) 825 fi 826 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 827 $2CFLAGS_JDK="${$2CFLAGS_JDK} -D__solaris__" 828 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} -D__solaris__" 829 fi 830 831 $2CFLAGS_JDK="${$2CFLAGS_JDK} ${$2EXTRA_CFLAGS}" 832 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2EXTRA_CXXFLAGS}" 833 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} ${$2EXTRA_LDFLAGS}" 834 835 ############################################################################### 836 # 837 # Now setup the CFLAGS and LDFLAGS for the JDK build. 838 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build. 839 # 840 841 # Setup compiler/platform specific flags into 842 # $2CFLAGS_JDK - C Compiler flags 843 # $2CXXFLAGS_JDK - C++ Compiler flags 844 # $2COMMON_CCXXFLAGS_JDK - common to C and C++ 845 if test "x$TOOLCHAIN_TYPE" = xgcc; then 846 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_GNU_SOURCE" 847 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_REENTRANT" 848 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -fcheck-new" 849 if test "x$OPENJDK_$1_CPU" = xx86; then 850 # Force compatibility with i586 on 32 bit intel platforms. 851 $2COMMON_CCXXFLAGS="${$2COMMON_CCXXFLAGS} -march=i586" 852 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -march=i586" 853 fi 854 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS [$]$2COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 855 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 856 case $OPENJDK_$1_CPU_ARCH in 857 arm ) 858 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing 859 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing" 860 $2COMMON_CCXXFLAGS_JDK="${$2COMMON_CCXXFLAGS_JDK} -fsigned-char" 861 ;; 862 ppc ) 863 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 864 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing" 865 ;; 866 s390 ) 867 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer -mbackchain -march=z10" 868 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing" 869 ;; 870 * ) 871 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 872 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing" 873 ;; 874 esac 875 TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: 6, PREFIX: $2, IF_AT_LEAST: FLAGS_SETUP_GCC6_COMPILER_FLAGS($2)) 876 elif test "x$TOOLCHAIN_TYPE" = xclang; then 877 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_GNU_SOURCE" 878 879 # Restrict the debug information created by Clang to avoid 880 # too big object files and speed the build up a little bit 881 # (see http://llvm.org/bugs/show_bug.cgi?id=7554) 882 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -flimit-debug-info" 883 if test "x$OPENJDK_$1_OS" = xlinux; then 884 if test "x$OPENJDK_$1_CPU" = xx86; then 885 # Force compatibility with i586 on 32 bit intel platforms. 886 $2COMMON_CCXXFLAGS="${$2COMMON_CCXXFLAGS} -march=i586" 887 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -march=i586" 888 fi 889 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wno-sometimes-uninitialized" 890 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS [$]$2COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \ 891 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE" 892 case $OPENJDK_$1_CPU_ARCH in 893 ppc ) 894 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing 895 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing" 896 ;; 897 * ) 898 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer" 899 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing" 900 ;; 901 esac 902 fi 903 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 904 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DSPARC_WORKS" 905 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS [$]$2COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS" 906 if test "x$OPENJDK_$1_CPU_ARCH" = xx86; then 907 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_$1_CPU_LEGACY_LIB" 908 fi 909 910 $2CFLAGS_JDK="[$]$2CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal" 911 $2CXXFLAGS_JDK="[$]$2CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib" 912 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 913 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_REENTRANT" 914 $2CFLAGS_JDK="[$]$2CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 915 $2CXXFLAGS_JDK="[$]$2CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC" 916 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 917 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS [$]$2COMMON_CCXXFLAGS_JDK \ 918 -MD -Zc:wchar_t- -W3 -wd4800 \ 919 -DWIN32_LEAN_AND_MEAN \ 920 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \ 921 -D_WINSOCK_DEPRECATED_NO_WARNINGS \ 922 -DWIN32 -DIAL" 923 if test "x$OPENJDK_$1_CPU" = xx86_64; then 924 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64" 925 else 926 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86" 927 fi 928 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to 929 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual 930 # studio. 931 if test "x$TOOLCHAIN_VERSION" = "x2010"; then 932 STATIC_CPPLIB_FLAGS="-D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB" 933 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK $STATIC_CPPLIB_FLAGS" 934 $2JVM_CFLAGS="[$]$2JVM_CFLAGS $STATIC_CPPLIB_FLAGS" 935 fi 936 fi 937 938 ############################################################################### 939 940 # Adjust flags according to debug level. 941 case $DEBUG_LEVEL in 942 fastdebug | slowdebug ) 943 $2CFLAGS_JDK="[$]$2CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS" 944 $2CXXFLAGS_JDK="[$]$2CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS" 945 ;; 946 release ) 947 ;; 948 * ) 949 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 950 ;; 951 esac 952 953 # Set some common defines. These works for all compilers, but assume 954 # -D is universally accepted. 955 956 # Setup endianness 957 if test "x$OPENJDK_$1_CPU_ENDIAN" = xlittle; then 958 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the 959 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN 960 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h). 961 # Note: -Dmacro is the same as #define macro 1 962 # -Dmacro= is the same as #define macro 963 if test "x$OPENJDK_$1_OS" = xsolaris; then 964 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN=" 965 else 966 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN" 967 fi 968 else 969 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they 970 # are defined in the system? 971 if test "x$OPENJDK_$1_OS" = xsolaris; then 972 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN=" 973 else 974 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN" 975 fi 976 fi 977 978 # Always enable optional macros for VM. 979 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D__STDC_FORMAT_MACROS" 980 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D__STDC_LIMIT_MACROS" 981 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D__STDC_CONSTANT_MACROS" 982 983 # Setup target OS define. Use OS target name but in upper case. 984 OPENJDK_$1_OS_UPPERCASE=`$ECHO $OPENJDK_$1_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` 985 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D$OPENJDK_$1_OS_UPPERCASE" 986 987 # Setup target CPU 988 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK \ 989 $OPENJDK_$1_ADD_LP64 \ 990 -DARCH='\"$OPENJDK_$1_CPU_LEGACY\"' -D$OPENJDK_$1_CPU_LEGACY" 991 992 # Setup debug/release defines 993 if test "x$DEBUG_LEVEL" = xrelease; then 994 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -DNDEBUG" 995 if test "x$OPENJDK_$1_OS" = xsolaris; then 996 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -DTRIMMED" 997 fi 998 else 999 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -DDEBUG" 1000 fi 1001 1002 # Optional POSIX functionality needed by the VM 1003 1004 if test "x$HAS_CLOCK_GETTIME" = "xtrue"; then 1005 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DSUPPORTS_CLOCK_MONOTONIC" 1006 if test "x$CLOCK_GETTIME_IN_LIBRT" = "xtrue"; then 1007 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DNEEDS_LIBRT" 1008 fi 1009 fi 1010 1011 1012 # Set some additional per-OS defines. 1013 if test "x$OPENJDK_$1_OS" = xlinux; then 1014 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DLINUX" 1015 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -pipe $PICFLAG -fno-rtti -fno-exceptions \ 1016 -fvisibility=hidden -fno-strict-aliasing -fno-omit-frame-pointer" 1017 elif test "x$OPENJDK_$1_OS" = xsolaris; then 1018 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DSOLARIS" 1019 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -template=no%extdef -features=no%split_init \ 1020 -D_Crun_inline_placement -library=%none $PICFLAG -mt -features=no%except" 1021 elif test "x$OPENJDK_$1_OS" = xmacosx; then 1022 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT" 1023 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_ALLBSD_SOURCE" 1024 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_DARWIN_C_SOURCE -D_XOPEN_SOURCE" 1025 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -fno-rtti -fno-exceptions -fvisibility=hidden \ 1026 -mno-omit-leaf-frame-pointer -mstack-alignment=16 -pipe -fno-strict-aliasing \ 1027 -DMAC_OS_X_VERSION_MAX_ALLOWED=1070 -mmacosx-version-min=10.7.0 \ 1028 -fno-omit-frame-pointer" 1029 elif test "x$OPENJDK_$1_OS" = xaix; then 1030 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DAIX" 1031 # We may need '-qminimaltoc' or '-qpic=large -bbigtoc' if the TOC overflows. 1032 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -qtune=balanced \ 1033 -qalias=noansi -qstrict -qtls=default -qlanglvl=c99vla \ 1034 -qlanglvl=noredefmac -qnortti -qnoeh -qignerrno" 1035 elif test "x$OPENJDK_$1_OS" = xbsd; then 1036 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE" 1037 elif test "x$OPENJDK_$1_OS" = xwindows; then 1038 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_WINDOWS -DWIN32 -D_JNI_IMPLEMENTATION_" 1039 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -nologo -W3 -MD -MP" 1040 fi 1041 1042 # Set some additional per-CPU defines. 1043 if test "x$OPENJDK_$1_OS-$OPENJDK_$1_CPU" = xwindows-x86; then 1044 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -arch:IA32" 1045 elif test "x$OPENJDK_$1_CPU" = xsparcv9; then 1046 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -xarch=sparc" 1047 elif test "x$OPENJDK_$1_CPU" = xppc64; then 1048 if test "x$OPENJDK_$1_OS" = xlinux; then 1049 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -minsert-sched-nops=regroup_exact -mno-multiple -mno-string" 1050 # fixes `relocation truncated to fit' error for gcc 4.1. 1051 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -mminimal-toc" 1052 # Use ppc64 instructions, but schedule for power5 1053 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -mcpu=powerpc64 -mtune=power5" 1054 elif test "x$OPENJDK_$1_OS" = xaix; then 1055 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -qarch=ppc64" 1056 fi 1057 elif test "x$OPENJDK_$1_CPU" = xppc64le; then 1058 if test "x$OPENJDK_$1_OS" = xlinux; then 1059 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -minsert-sched-nops=regroup_exact -mno-multiple -mno-string" 1060 # Little endian machine uses ELFv2 ABI. 1061 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DABI_ELFv2" 1062 # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI. 1063 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -mcpu=power8 -mtune=power8" 1064 fi 1065 elif test "x$OPENJDK_$1_CPU" = xs390x; then 1066 if test "x$OPENJDK_$1_OS" = xlinux; then 1067 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -mbackchain -march=z10" 1068 fi 1069 fi 1070 1071 if test "x$OPENJDK_$1_CPU_ENDIAN" = xlittle; then 1072 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DVM_LITTLE_ENDIAN" 1073 fi 1074 1075 if test "x$OPENJDK_$1_CPU_BITS" = x64; then 1076 if test "x$OPENJDK_$1_OS" != xsolaris && test "x$OPENJDK_$1_OS" != xaix; then 1077 # Solaris does not have _LP64=1 in the old build. 1078 # xlc on AIX defines _LP64=1 by default and issues a warning if we redefine it. 1079 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_LP64=1" 1080 fi 1081 fi 1082 1083 # Set $2JVM_CFLAGS warning handling 1084 if test "x$OPENJDK_$1_OS" = xlinux; then 1085 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wpointer-arith -Wsign-compare -Wunused-function \ 1086 -Wunused-value -Woverloaded-virtual" 1087 1088 if test "x$TOOLCHAIN_TYPE" = xgcc; then 1089 TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: [4.8], PREFIX: $2, 1090 IF_AT_LEAST: [ 1091 # These flags either do not work or give spurious warnings prior to gcc 4.8. 1092 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wno-format-zero-length -Wtype-limits -Wuninitialized" 1093 ] 1094 ) 1095 fi 1096 if ! HOTSPOT_CHECK_JVM_VARIANT(zero) && ! HOTSPOT_CHECK_JVM_VARIANT(zeroshark); then 1097 # Non-zero builds have stricter warnings 1098 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wreturn-type -Wundef -Wformat=2" 1099 else 1100 if test "x$TOOLCHAIN_TYPE" = xclang; then 1101 # Some versions of llvm do not like -Wundef 1102 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wno-undef" 1103 fi 1104 fi 1105 elif test "x$OPENJDK_$1_OS" = xmacosx; then 1106 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wno-deprecated -Wpointer-arith \ 1107 -Wsign-compare -Wundef -Wunused-function -Wformat=2" 1108 fi 1109 1110 # Additional macosx handling 1111 if test "x$OPENJDK_$1_OS" = xmacosx; then 1112 # Setting these parameters makes it an error to link to macosx APIs that are 1113 # newer than the given OS version and makes the linked binaries compatible 1114 # even if built on a newer version of the OS. 1115 # The expected format is X.Y.Z 1116 MACOSX_VERSION_MIN=10.7.0 1117 AC_SUBST(MACOSX_VERSION_MIN) 1118 1119 # The macro takes the version with no dots, ex: 1070 1120 # Let the flags variables get resolved in make for easier override on make 1121 # command line. 1122 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 1123 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)" 1124 fi 1125 1126 # Setup some hard coded includes 1127 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK \ 1128 -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base \ 1129 -I${JDK_TOPDIR}/src/java.base/share/native/include \ 1130 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_$1_OS/native/include \ 1131 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_$1_OS_TYPE/native/include \ 1132 -I${JDK_TOPDIR}/src/java.base/share/native/libjava \ 1133 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_$1_OS_TYPE/native/libjava" 1134 1135 # The shared libraries are compiled using the picflag. 1136 $2CFLAGS_JDKLIB="[$]$2COMMON_CCXXFLAGS_JDK \ 1137 [$]$2CFLAGS_JDK [$]$2EXTRA_CFLAGS_JDK $PICFLAG [$]$2CFLAGS_JDKLIB_EXTRA" 1138 $2CXXFLAGS_JDKLIB="[$]$2COMMON_CCXXFLAGS_JDK \ 1139 [$]$2CXXFLAGS_JDK [$]$2EXTRA_CXXFLAGS_JDK $PICFLAG [$]$2CXXFLAGS_JDKLIB_EXTRA" 1140 1141 # Executable flags 1142 $2CFLAGS_JDKEXE="[$]$2COMMON_CCXXFLAGS_JDK [$]$2CFLAGS_JDK [$]$2EXTRA_CFLAGS_JDK" 1143 $2CXXFLAGS_JDKEXE="[$]$2COMMON_CCXXFLAGS_JDK [$]$2CXXFLAGS_JDK [$]$2EXTRA_CXXFLAGS_JDK" 1144 1145 AC_SUBST($2CFLAGS_JDKLIB) 1146 AC_SUBST($2CFLAGS_JDKEXE) 1147 AC_SUBST($2CXXFLAGS_JDKLIB) 1148 AC_SUBST($2CXXFLAGS_JDKEXE) 1149 1150 # Setup LDFLAGS et al. 1151 # 1152 1153 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 1154 LDFLAGS_MICROSOFT="-nologo -opt:ref" 1155 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LDFLAGS_MICROSOFT -incremental:no" 1156 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_MICROSOFT -opt:icf,8 -subsystem:windows -base:0x8000000" 1157 if test "x$OPENJDK_$1_CPU_BITS" = "x32"; then 1158 LDFLAGS_SAFESH="-safeseh" 1159 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LDFLAGS_SAFESH" 1160 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_SAFESH" 1161 # NOTE: Old build added -machine. Probably not needed. 1162 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -machine:I386" 1163 else 1164 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -machine:AMD64" 1165 fi 1166 elif test "x$TOOLCHAIN_TYPE" = xclang; then 1167 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -mno-omit-leaf-frame-pointer -mstack-alignment=16 -stdlib=libstdc++ -fPIC" 1168 if test "x$OPENJDK_$1_OS" = xmacosx; then 1169 # FIXME: We should really generalize SET_SHARED_LIBRARY_ORIGIN instead. 1170 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/.." 1171 fi 1172 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 1173 # If this is a --hash-style=gnu system, use --hash-style=both, why? 1174 # We have previously set HAS_GNU_HASH if this is the case 1175 if test -n "$HAS_GNU_HASH"; then 1176 $2LDFLAGS_HASH_STYLE="-Wl,--hash-style=both" 1177 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} [$]$2LDFLAGS_HASH_STYLE" 1178 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS [$]$2LDFLAGS_HASH_STYLE" 1179 fi 1180 if test "x$OPENJDK_$1_OS" = xmacosx; then 1181 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/.." 1182 fi 1183 if test "x$OPENJDK_$1_OS" = xlinux; then 1184 # And since we now know that the linker is gnu, then add -z defs, to forbid 1185 # undefined symbols in object files. 1186 LDFLAGS_NO_UNDEF_SYM="-Wl,-z,defs" 1187 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} $LDFLAGS_NO_UNDEF_SYM" 1188 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_NO_UNDEF_SYM" 1189 LDFLAGS_NO_EXEC_STACK="-Wl,-z,noexecstack" 1190 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_NO_EXEC_STACK" 1191 if test "x$OPENJDK_$1_CPU" = xx86; then 1192 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -march=i586" 1193 fi 1194 case $DEBUG_LEVEL in 1195 release ) 1196 # tell linker to optimize libraries. 1197 # Should this be supplied to the OSS linker as well? 1198 LDFLAGS_DEBUGLEVEL_release="-Wl,-O1" 1199 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} $LDFLAGS_DEBUGLEVEL_release" 1200 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_DEBUGLEVEL_release" 1201 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 1202 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LINKER_RELRO_FLAG" 1203 fi 1204 ;; 1205 slowdebug ) 1206 # Hotspot always let the linker optimize 1207 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -Wl,-O1" 1208 if test "x$HAS_LINKER_NOW" = "xtrue"; then 1209 # do relocations at load 1210 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LINKER_NOW_FLAG" 1211 $2LDFLAGS_CXX_JDK="[$]$2LDFLAGS_CXX_JDK $LINKER_NOW_FLAG" 1212 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LINKER_NOW_FLAG" 1213 fi 1214 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 1215 # mark relocations read only 1216 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LINKER_RELRO_FLAG" 1217 $2LDFLAGS_CXX_JDK="[$]$2LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 1218 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LINKER_RELRO_FLAG" 1219 fi 1220 ;; 1221 fastdebug ) 1222 # Hotspot always let the linker optimize 1223 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -Wl,-O1" 1224 if test "x$HAS_LINKER_RELRO" = "xtrue"; then 1225 # mark relocations read only 1226 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LINKER_RELRO_FLAG" 1227 $2LDFLAGS_CXX_JDK="[$]$2LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG" 1228 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LINKER_RELRO_FLAG" 1229 fi 1230 ;; 1231 * ) 1232 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL]) 1233 ;; 1234 esac 1235 fi 1236 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 1237 LDFLAGS_SOLSTUDIO="-Wl,-z,defs" 1238 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LDFLAGS_SOLSTUDIO -ztext" 1239 LDFLAGS_CXX_SOLSTUDIO="-norunpath" 1240 $2LDFLAGS_CXX_JDK="[$]$2LDFLAGS_CXX_JDK $LDFLAGS_CXX_SOLSTUDIO -xnolib" 1241 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_SOLSTUDIO -library=%none -mt $LDFLAGS_CXX_SOLSTUDIO -z noversion" 1242 if test "x$OPENJDK_$1_CPU_ARCH" = "xsparc"; then 1243 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -xarch=sparc" 1244 fi 1245 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 1246 LDFLAGS_XLC="-b64 -brtl -bnolibpath -bexpall -bernotok" 1247 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} $LDFLAGS_XLC" 1248 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_XLC" 1249 fi 1250 1251 # Customize LDFLAGS for executables 1252 1253 $2LDFLAGS_JDKEXE="${$2LDFLAGS_JDK}" 1254 1255 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 1256 if test "x$OPENJDK_$1_CPU_BITS" = "x64"; then 1257 LDFLAGS_STACK_SIZE=1048576 1258 else 1259 LDFLAGS_STACK_SIZE=327680 1260 fi 1261 $2LDFLAGS_JDKEXE="${$2LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE" 1262 elif test "x$OPENJDK_$1_OS" = xlinux; then 1263 $2LDFLAGS_JDKEXE="[$]$2LDFLAGS_JDKEXE -Wl,--allow-shlib-undefined" 1264 fi 1265 1266 $2LDFLAGS_JDKEXE="${$2LDFLAGS_JDKEXE} ${$2EXTRA_LDFLAGS_JDK}" 1267 1268 # Customize LDFLAGS for libs 1269 $2LDFLAGS_JDKLIB="${$2LDFLAGS_JDK}" 1270 1271 $2LDFLAGS_JDKLIB="${$2LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS}" 1272 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 1273 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \ 1274 -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base" 1275 $2JDKLIB_LIBS="" 1276 else 1277 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \ 1278 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base" 1279 1280 if test "x$1" = "xTARGET"; then 1281 # On some platforms (mac) the linker warns about non existing -L dirs. 1282 # For any of the variants server, client or minimal, the dir matches the 1283 # variant name. The "main" variant should be used for linking. For the 1284 # rest, the dir is just server. 1285 if HOTSPOT_CHECK_JVM_VARIANT(server) || HOTSPOT_CHECK_JVM_VARIANT(client) \ 1286 || HOTSPOT_CHECK_JVM_VARIANT(minimal); then 1287 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \ 1288 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base/$JVM_VARIANT_MAIN" 1289 else 1290 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \ 1291 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base/server" 1292 fi 1293 elif test "x$1" = "xBUILD"; then 1294 # When building a buildjdk, it's always only the server variant 1295 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \ 1296 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base/server" 1297 fi 1298 1299 $2JDKLIB_LIBS="-ljava -ljvm" 1300 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 1301 $2JDKLIB_LIBS="[$]$2JDKLIB_LIBS -lc" 1302 fi 1303 1304 fi 1305 1306$2LDFLAGS_JDKLIB="${$2LDFLAGS_JDKLIB} ${$2JAVA_BASE_LDFLAGS}" 1307 1308 # Set $2JVM_LIBS (per os) 1309 if test "x$OPENJDK_$1_OS" = xlinux; then 1310 $2JVM_LIBS="[$]$2JVM_LIBS -lm -ldl -lpthread" 1311 elif test "x$OPENJDK_$1_OS" = xsolaris; then 1312 # FIXME: This hard-coded path is not really proper. 1313 if test "x$OPENJDK_$1_CPU" = xx86_64; then 1314 $2SOLARIS_LIBM_LIBS="/usr/lib/amd64/libm.so.1" 1315 elif test "x$OPENJDK_$1_CPU" = xsparcv9; then 1316 $2SOLARIS_LIBM_LIBS="/usr/lib/sparcv9/libm.so.1" 1317 fi 1318 $2JVM_LIBS="[$]$2JVM_LIBS -lsocket -lsched -ldl $SOLARIS_LIBM_LIBS -lCrun \ 1319 -lthread -ldoor -lc -ldemangle -lnsl -lkstat -lrt" 1320 elif test "x$OPENJDK_$1_OS" = xmacosx; then 1321 $2JVM_LIBS="[$]$2JVM_LIBS -lm" 1322 elif test "x$OPENJDK_$1_OS" = xaix; then 1323 $2JVM_LIBS="[$]$2JVM_LIBS -Wl,-lC_r -lm -ldl -lpthread" 1324 elif test "x$OPENJDK_$1_OS" = xbsd; then 1325 $2JVM_LIBS="[$]$2JVM_LIBS -lm" 1326 elif test "x$OPENJDK_$1_OS" = xwindows; then 1327 $2JVM_LIBS="[$]$2JVM_LIBS kernel32.lib user32.lib gdi32.lib winspool.lib \ 1328 comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib \ 1329 wsock32.lib winmm.lib version.lib psapi.lib" 1330 fi 1331 1332 # Set $2JVM_ASFLAGS 1333 if test "x$OPENJDK_$1_OS" = xlinux; then 1334 if test "x$OPENJDK_$1_CPU" = xx86; then 1335 $2JVM_ASFLAGS="[$]$2JVM_ASFLAGS -march=i586" 1336 fi 1337 elif test "x$OPENJDK_$1_OS" = xmacosx; then 1338 $2JVM_ASFLAGS="[$]$2JVM_ASFLAGS -x assembler-with-cpp -mno-omit-leaf-frame-pointer -mstack-alignment=16" 1339 fi 1340 1341 $2LDFLAGS_JDKLIB="${$2LDFLAGS_JDKLIB} ${$2EXTRA_LDFLAGS_JDK}" 1342 1343 AC_SUBST($2LDFLAGS_JDKLIB) 1344 AC_SUBST($2LDFLAGS_JDKEXE) 1345 AC_SUBST($2JDKLIB_LIBS) 1346 AC_SUBST($2JDKEXE_LIBS) 1347 AC_SUBST($2LDFLAGS_CXX_JDK) 1348 AC_SUBST($2LDFLAGS_HASH_STYLE) 1349 1350 AC_SUBST($2JVM_CFLAGS) 1351 AC_SUBST($2JVM_LDFLAGS) 1352 AC_SUBST($2JVM_ASFLAGS) 1353 AC_SUBST($2JVM_LIBS) 1354 1355]) 1356 1357# FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 1358# IF_FALSE: [RUN-IF-FALSE]) 1359# ------------------------------------------------------------ 1360# Check that the C compiler supports an argument 1361BASIC_DEFUN_NAMED([FLAGS_C_COMPILER_CHECK_ARGUMENTS], 1362 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 1363[ 1364 AC_MSG_CHECKING([if the C compiler supports "ARG_ARGUMENT"]) 1365 supports=yes 1366 1367 saved_cflags="$CFLAGS" 1368 CFLAGS="$CFLAGS ARG_ARGUMENT" 1369 AC_LANG_PUSH([C]) 1370 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 1371 [supports=no]) 1372 AC_LANG_POP([C]) 1373 CFLAGS="$saved_cflags" 1374 1375 AC_MSG_RESULT([$supports]) 1376 if test "x$supports" = "xyes" ; then 1377 : 1378 ARG_IF_TRUE 1379 else 1380 : 1381 ARG_IF_FALSE 1382 fi 1383]) 1384 1385# FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 1386# IF_FALSE: [RUN-IF-FALSE]) 1387# ------------------------------------------------------------ 1388# Check that the C++ compiler supports an argument 1389BASIC_DEFUN_NAMED([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS], 1390 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 1391[ 1392 AC_MSG_CHECKING([if the C++ compiler supports "ARG_ARGUMENT"]) 1393 supports=yes 1394 1395 saved_cxxflags="$CXXFLAGS" 1396 CXXFLAGS="$CXXFLAG ARG_ARGUMENT" 1397 AC_LANG_PUSH([C++]) 1398 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 1399 [supports=no]) 1400 AC_LANG_POP([C++]) 1401 CXXFLAGS="$saved_cxxflags" 1402 1403 AC_MSG_RESULT([$supports]) 1404 if test "x$supports" = "xyes" ; then 1405 : 1406 ARG_IF_TRUE 1407 else 1408 : 1409 ARG_IF_FALSE 1410 fi 1411]) 1412 1413# FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 1414# IF_FALSE: [RUN-IF-FALSE]) 1415# ------------------------------------------------------------ 1416# Check that the C and C++ compilers support an argument 1417BASIC_DEFUN_NAMED([FLAGS_COMPILER_CHECK_ARGUMENTS], 1418 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 1419[ 1420 FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT], 1421 IF_TRUE: [C_COMP_SUPPORTS="yes"], 1422 IF_FALSE: [C_COMP_SUPPORTS="no"]) 1423 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT], 1424 IF_TRUE: [CXX_COMP_SUPPORTS="yes"], 1425 IF_FALSE: [CXX_COMP_SUPPORTS="no"]) 1426 1427 AC_MSG_CHECKING([if both compilers support "ARG_ARGUMENT"]) 1428 supports=no 1429 if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi 1430 1431 AC_MSG_RESULT([$supports]) 1432 if test "x$supports" = "xyes" ; then 1433 : 1434 ARG_IF_TRUE 1435 else 1436 : 1437 ARG_IF_FALSE 1438 fi 1439]) 1440 1441# FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 1442# IF_FALSE: [RUN-IF-FALSE]) 1443# ------------------------------------------------------------ 1444# Check that the linker support an argument 1445BASIC_DEFUN_NAMED([FLAGS_LINKER_CHECK_ARGUMENTS], 1446 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 1447[ 1448 AC_MSG_CHECKING([if linker supports "ARG_ARGUMENT"]) 1449 supports=yes 1450 1451 saved_ldflags="$LDFLAGS" 1452 LDFLAGS="$LDFLAGS ARG_ARGUMENT" 1453 AC_LANG_PUSH([C]) 1454 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], 1455 [], [supports=no]) 1456 AC_LANG_POP([C]) 1457 LDFLAGS="$saved_ldflags" 1458 1459 AC_MSG_RESULT([$supports]) 1460 if test "x$supports" = "xyes" ; then 1461 : 1462 ARG_IF_TRUE 1463 else 1464 : 1465 ARG_IF_FALSE 1466 fi 1467]) 1468 1469AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC], 1470[ 1471 # Check that the compiler supports -mX (or -qX on AIX) flags 1472 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 1473 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 1474 IF_TRUE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 1475 IF_FALSE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 1476 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 1477 1478 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors], 1479 [do not consider native warnings to be an error @<:@enabled@:>@])]) 1480 1481 AC_MSG_CHECKING([if native warnings are errors]) 1482 if test "x$enable_warnings_as_errors" = "xyes"; then 1483 AC_MSG_RESULT([yes (explicitly set)]) 1484 WARNINGS_AS_ERRORS=true 1485 elif test "x$enable_warnings_as_errors" = "xno"; then 1486 AC_MSG_RESULT([no]) 1487 WARNINGS_AS_ERRORS=false 1488 elif test "x$enable_warnings_as_errors" = "x"; then 1489 AC_MSG_RESULT([yes (default)]) 1490 WARNINGS_AS_ERRORS=true 1491 else 1492 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument]) 1493 fi 1494 1495 AC_SUBST(WARNINGS_AS_ERRORS) 1496 1497 case "${TOOLCHAIN_TYPE}" in 1498 microsoft) 1499 DISABLE_WARNING_PREFIX="-wd" 1500 CFLAGS_WARNINGS_ARE_ERRORS="-WX" 1501 ;; 1502 solstudio) 1503 DISABLE_WARNING_PREFIX="-erroff=" 1504 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all" 1505 ;; 1506 gcc) 1507 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error 1508 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], 1509 IF_TRUE: [GCC_CAN_DISABLE_WARNINGS=true], 1510 IF_FALSE: [GCC_CAN_DISABLE_WARNINGS=false] 1511 ) 1512 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1513 DISABLE_WARNING_PREFIX="-Wno-" 1514 else 1515 DISABLE_WARNING_PREFIX= 1516 fi 1517 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1518 # Repeate the check for the BUILD_CC and BUILD_CXX. Need to also reset 1519 # CFLAGS since any target specific flags will likely not work with the 1520 # build compiler 1521 CC_OLD="$CC" 1522 CXX_OLD="$CXX" 1523 CC="$BUILD_CC" 1524 CXX="$BUILD_CXX" 1525 CFLAGS_OLD="$CFLAGS" 1526 CFLAGS="" 1527 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist], 1528 IF_TRUE: [BUILD_CC_CAN_DISABLE_WARNINGS=true], 1529 IF_FALSE: [BUILD_CC_CAN_DISABLE_WARNINGS=false] 1530 ) 1531 if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then 1532 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-" 1533 else 1534 BUILD_CC_DISABLE_WARNING_PREFIX= 1535 fi 1536 CC="$CC_OLD" 1537 CXX="$CXX_OLD" 1538 CFLAGS="$CFLAGS_OLD" 1539 ;; 1540 clang) 1541 DISABLE_WARNING_PREFIX="-Wno-" 1542 CFLAGS_WARNINGS_ARE_ERRORS="-Werror" 1543 ;; 1544 xlc) 1545 DISABLE_WARNING_PREFIX="-qsuppress=" 1546 CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w" 1547 ;; 1548 esac 1549 AC_SUBST(DISABLE_WARNING_PREFIX) 1550 AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX) 1551 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS) 1552]) 1553 1554# FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX]) 1555# Arguments: 1556# $1 - Optional prefix for each variable defined. 1557AC_DEFUN([FLAGS_SETUP_GCC6_COMPILER_FLAGS], 1558[ 1559 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code 1560 # runs afoul of the more aggressive versions of these optimisations. 1561 # Notably, value range propagation now assumes that the this pointer of C++ 1562 # member functions is non-null. 1563 NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks" 1564 dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation 1565 dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror], 1566 dnl IF_FALSE: [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""]) 1567 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse" 1568 dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation 1569 dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror], 1570 dnl IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""]) 1571 AC_MSG_NOTICE([GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}]) 1572 $1CFLAGS_JDK="[$]$1CFLAGS_JDK ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}" 1573 $1JVM_CFLAGS="[$]$1JVM_CFLAGS ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}" 1574]) 1575