platform.m4 revision 786:0874bb4707b7
1# 2# Copyright (c) 2011, 2012, 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# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD. 27# Converts autoconf style CPU name to OpenJDK style, into 28# VAR_CPU, VAR_CPU_ARCH, VAR_CPU_BITS and VAR_CPU_ENDIAN. 29AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_CPU], 30[ 31 # First argument is the cpu name from the trip/quad 32 case "$1" in 33 x86_64) 34 VAR_CPU=x86_64 35 VAR_CPU_ARCH=x86 36 VAR_CPU_BITS=64 37 VAR_CPU_ENDIAN=little 38 ;; 39 i?86) 40 VAR_CPU=x86 41 VAR_CPU_ARCH=x86 42 VAR_CPU_BITS=32 43 VAR_CPU_ENDIAN=little 44 ;; 45 arm*) 46 VAR_CPU=arm 47 VAR_CPU_ARCH=arm 48 VAR_CPU_BITS=32 49 VAR_CPU_ENDIAN=little 50 ;; 51 powerpc) 52 VAR_CPU=ppc 53 VAR_CPU_ARCH=ppc 54 VAR_CPU_BITS=32 55 VAR_CPU_ENDIAN=big 56 ;; 57 powerpc64) 58 VAR_CPU=ppc64 59 VAR_CPU_ARCH=ppc 60 VAR_CPU_BITS=64 61 VAR_CPU_ENDIAN=big 62 ;; 63 s390) 64 VAR_CPU=s390 65 VAR_CPU_ARCH=s390 66 VAR_CPU_BITS=32 67 VAR_CPU_ENDIAN=big 68 ;; 69 s390x) 70 VAR_CPU=s390x 71 VAR_CPU_ARCH=s390 72 VAR_CPU_BITS=64 73 VAR_CPU_ENDIAN=big 74 ;; 75 sparc) 76 VAR_CPU=sparc 77 VAR_CPU_ARCH=sparc 78 VAR_CPU_BITS=32 79 VAR_CPU_ENDIAN=big 80 ;; 81 sparcv9) 82 VAR_CPU=sparcv9 83 VAR_CPU_ARCH=sparc 84 VAR_CPU_BITS=64 85 VAR_CPU_ENDIAN=big 86 ;; 87 *) 88 AC_MSG_ERROR([unsupported cpu $1]) 89 ;; 90 esac 91]) 92 93# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD. 94# Converts autoconf style OS name to OpenJDK style, into 95# VAR_OS and VAR_OS_API. 96AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS], 97[ 98 case "$1" in 99 *linux*) 100 VAR_OS=linux 101 VAR_OS_API=posix 102 VAR_OS_ENV=linux 103 ;; 104 *solaris*) 105 VAR_OS=solaris 106 VAR_OS_API=posix 107 VAR_OS_ENV=solaris 108 ;; 109 *darwin*) 110 VAR_OS=macosx 111 VAR_OS_API=posix 112 VAR_OS_ENV=macosx 113 ;; 114 *bsd*) 115 VAR_OS=bsd 116 VAR_OS_API=posix 117 VAR_OS_ENV=bsd 118 ;; 119 *cygwin*) 120 VAR_OS=windows 121 VAR_OS_API=winapi 122 VAR_OS_ENV=windows.cygwin 123 ;; 124 *mingw*) 125 VAR_OS=windows 126 VAR_OS_API=winapi 127 VAR_OS_ENV=windows.msys 128 ;; 129 *) 130 AC_MSG_ERROR([unsupported operating system $1]) 131 ;; 132 esac 133]) 134 135# Expects $host_os $host_cpu $build_os and $build_cpu 136# and $with_target_bits to have been setup! 137# 138# Translate the standard triplet(quadruplet) definition 139# of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU, 140# OPENJDK_BUILD_OS, etc. 141AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD], 142[ 143 # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME 144 # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME 145 # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build, 146 # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME. 147 OPENJDK_TARGET_AUTOCONF_NAME="$host" 148 OPENJDK_BUILD_AUTOCONF_NAME="$build" 149 AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME) 150 AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME) 151 152 # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables. 153 PLATFORM_EXTRACT_VARS_FROM_OS($build_os) 154 PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu) 155 # ..and setup our own variables. (Do this explicitely to facilitate searching) 156 OPENJDK_BUILD_OS="$VAR_OS" 157 OPENJDK_BUILD_OS_API="$VAR_OS_API" 158 OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV" 159 OPENJDK_BUILD_CPU="$VAR_CPU" 160 OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH" 161 OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS" 162 OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN" 163 AC_SUBST(OPENJDK_BUILD_OS) 164 AC_SUBST(OPENJDK_BUILD_OS_API) 165 AC_SUBST(OPENJDK_BUILD_CPU) 166 AC_SUBST(OPENJDK_BUILD_CPU_ARCH) 167 AC_SUBST(OPENJDK_BUILD_CPU_BITS) 168 AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN) 169 170 AC_MSG_CHECKING([openjdk-build os-cpu]) 171 AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU]) 172 173 # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables. 174 PLATFORM_EXTRACT_VARS_FROM_OS($host_os) 175 PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu) 176 # ... and setup our own variables. (Do this explicitely to facilitate searching) 177 OPENJDK_TARGET_OS="$VAR_OS" 178 OPENJDK_TARGET_OS_API="$VAR_OS_API" 179 OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV" 180 OPENJDK_TARGET_CPU="$VAR_CPU" 181 OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH" 182 OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS" 183 OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN" 184 AC_SUBST(OPENJDK_TARGET_OS) 185 AC_SUBST(OPENJDK_TARGET_OS_API) 186 AC_SUBST(OPENJDK_TARGET_CPU) 187 AC_SUBST(OPENJDK_TARGET_CPU_ARCH) 188 AC_SUBST(OPENJDK_TARGET_CPU_BITS) 189 AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN) 190 191 AC_MSG_CHECKING([openjdk-target os-cpu]) 192 AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU]) 193]) 194 195# Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour 196# accordingly. Must be done after setting up build and target system, but before 197# doing anything else with these values. 198AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS], 199[ 200 AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits], 201 [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])]) 202 203 # We have three types of compiles: 204 # native == normal compilation, target system == build system 205 # cross == traditional cross compilation, target system != build system; special toolchain needed 206 # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines 207 # 208 if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then 209 # We're doing a proper cross-compilation 210 COMPILE_TYPE="cross" 211 else 212 COMPILE_TYPE="native" 213 fi 214 215 if test "x$with_target_bits" != x; then 216 if test "x$COMPILE_TYPE" = "xcross"; then 217 AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.]) 218 fi 219 220 if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then 221 # A reduced build is requested 222 COMPILE_TYPE="reduced" 223 OPENJDK_TARGET_CPU_BITS=32 224 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 225 OPENJDK_TARGET_CPU=x86 226 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 227 OPENJDK_TARGET_CPU=sparc 228 else 229 AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9]) 230 fi 231 elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then 232 AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.]) 233 elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then 234 AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning]) 235 else 236 AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!]) 237 fi 238 fi 239 AC_SUBST(COMPILE_TYPE) 240 241AC_MSG_CHECKING([compilation type]) 242AC_MSG_RESULT([$COMPILE_TYPE]) 243]) 244 245 # Setup the legacy variables, for controlling the old makefiles. 246 # 247AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS], 248[ 249 # Also store the legacy naming of the cpu. 250 # Ie i586 and amd64 instead of x86 and x86_64 251 OPENJDK_TARGET_CPU_LEGACY="$OPENJDK_TARGET_CPU" 252 if test "x$OPENJDK_TARGET_CPU" = xx86; then 253 OPENJDK_TARGET_CPU_LEGACY="i586" 254 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 255 # On all platforms except MacOSX replace x86_64 with amd64. 256 OPENJDK_TARGET_CPU_LEGACY="amd64" 257 fi 258 AC_SUBST(OPENJDK_TARGET_CPU_LEGACY) 259 260 # And the second legacy naming of the cpu. 261 # Ie i386 and amd64 instead of x86 and x86_64. 262 OPENJDK_TARGET_CPU_LEGACY_LIB="$OPENJDK_TARGET_CPU" 263 if test "x$OPENJDK_TARGET_CPU" = xx86; then 264 OPENJDK_TARGET_CPU_LEGACY_LIB="i386" 265 elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then 266 OPENJDK_TARGET_CPU_LEGACY_LIB="amd64" 267 fi 268 AC_SUBST(OPENJDK_TARGET_CPU_LEGACY_LIB) 269 270 # This is the name of the cpu (but using i386 and amd64 instead of 271 # x86 and x86_64, respectively), preceeded by a /, to be used when 272 # locating libraries. On macosx, it's empty, though. 273 OPENJDK_TARGET_CPU_LIBDIR="/$OPENJDK_TARGET_CPU_LEGACY_LIB" 274 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 275 OPENJDK_TARGET_CPU_LIBDIR="" 276 fi 277 AC_SUBST(OPENJDK_TARGET_CPU_LIBDIR) 278 279 # OPENJDK_TARGET_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to 280 # /amd64 or /sparcv9. This string is appended to some library paths, like this: 281 # /usr/lib${OPENJDK_TARGET_CPU_ISADIR}/libexample.so 282 OPENJDK_TARGET_CPU_ISADIR="" 283 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 284 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 285 OPENJDK_TARGET_CPU_ISADIR="/amd64" 286 elif test "x$OPENJDK_TARGET_CPU" = xsparcv9; then 287 OPENJDK_TARGET_CPU_ISADIR="/sparcv9" 288 fi 289 fi 290 AC_SUBST(OPENJDK_TARGET_CPU_ISADIR) 291 292 # Setup OPENJDK_TARGET_CPU_OSARCH, which is used to set the os.arch Java system property 293 OPENJDK_TARGET_CPU_OSARCH="$OPENJDK_TARGET_CPU" 294 if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$OPENJDK_TARGET_CPU" = xx86; then 295 # On linux only, we replace x86 with i386. 296 OPENJDK_TARGET_CPU_OSARCH="i386" 297 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 298 # On all platforms except macosx, we replace x86_64 with amd64. 299 OPENJDK_TARGET_CPU_OSARCH="amd64" 300 fi 301 AC_SUBST(OPENJDK_TARGET_CPU_OSARCH) 302 303 OPENJDK_TARGET_CPU_JLI="$OPENJDK_TARGET_CPU" 304 if test "x$OPENJDK_TARGET_CPU" = xx86; then 305 OPENJDK_TARGET_CPU_JLI="i386" 306 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 307 # On all platforms except macosx, we replace x86_64 with amd64. 308 OPENJDK_TARGET_CPU_JLI="amd64" 309 fi 310 # Now setup the -D flags for building libjli. 311 OPENJDK_TARGET_CPU_JLI_CFLAGS="-DLIBARCHNAME='\"$OPENJDK_TARGET_CPU_JLI\"'" 312 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 313 if test "x$OPENJDK_TARGET_CPU_ARCH" = xsparc; then 314 OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"sparc\"' -DLIBARCH64NAME='\"sparcv9\"'" 315 elif test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 316 OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"i386\"' -DLIBARCH64NAME='\"amd64\"'" 317 fi 318 fi 319 AC_SUBST(OPENJDK_TARGET_CPU_JLI_CFLAGS) 320 321 # Setup OPENJDK_TARGET_OS_API_DIR, used in source paths. 322 if test "x$OPENJDK_TARGET_OS_API" = xposix; then 323 OPENJDK_TARGET_OS_API_DIR="solaris" 324 fi 325 if test "x$OPENJDK_TARGET_OS_API" = xwinapi; then 326 OPENJDK_TARGET_OS_API_DIR="windows" 327 fi 328 AC_SUBST(OPENJDK_TARGET_OS_API_DIR) 329 330 if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then 331 A_LP64="LP64:=" 332 # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in 333 # unpack200.exe 334 if test "x$OPENJDK_TARGET_OS" = xlinux || test "x$OPENJDK_TARGET_OS" = xmacosx; then 335 ADD_LP64="-D_LP64=1" 336 fi 337 fi 338 AC_SUBST(LP64,$A_LP64) 339 340 if test "x$COMPILE_TYPE" = "xcross"; then 341 # FIXME: ... or should this include reduced builds..? 342 DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_TARGET_CPU_LEGACY" 343 else 344 DEFINE_CROSS_COMPILE_ARCH="" 345 fi 346 AC_SUBST(DEFINE_CROSS_COMPILE_ARCH) 347 348 # ZERO_ARCHDEF is used to enable architecture-specific code 349 case "${OPENJDK_TARGET_CPU}" in 350 ppc*) ZERO_ARCHDEF=PPC ;; 351 s390*) ZERO_ARCHDEF=S390 ;; 352 sparc*) ZERO_ARCHDEF=SPARC ;; 353 x86_64*) ZERO_ARCHDEF=AMD64 ;; 354 x86) ZERO_ARCHDEF=IA32 ;; 355 *) ZERO_ARCHDEF=$(echo "${OPENJDK_TARGET_CPU_LEGACY_LIB}" | tr a-z A-Z) 356 esac 357 AC_SUBST(ZERO_ARCHDEF) 358 359]) 360 361AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES], 362[ 363 if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then 364 REQUIRED_OS_NAME=SunOS 365 REQUIRED_OS_VERSION=5.10 366 fi 367 if test "x$OPENJDK_TARGET_OS" = "xlinux"; then 368 REQUIRED_OS_NAME=Linux 369 REQUIRED_OS_VERSION=2.6 370 fi 371 if test "x$OPENJDK_TARGET_OS" = "xwindows"; then 372 REQUIRED_OS_NAME=Windows 373 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 374 REQUIRED_OS_VERSION=5.2 375 else 376 REQUIRED_OS_VERSION=5.1 377 fi 378 fi 379 if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then 380 REQUIRED_OS_NAME=Darwin 381 REQUIRED_OS_VERSION=11.2 382 fi 383 384 AC_SUBST(REQUIRED_OS_NAME) 385 AC_SUBST(REQUIRED_OS_VERSION) 386]) 387 388#%%% Build and target systems %%% 389AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET], 390[ 391# Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target" 392# is confusing; it assumes you are cross-compiling a cross-compiler (!) and "target" is thus the target of the 393# product you're building. The target of this build is called "host". Since this is confusing to most people, we 394# have not adopted that system, but use "target" as the platform we are building for. In some places though we need 395# to use the configure naming style. 396AC_CANONICAL_BUILD 397AC_CANONICAL_HOST 398AC_CANONICAL_TARGET 399 400PLATFORM_EXTRACT_TARGET_AND_BUILD 401PLATFORM_SETUP_TARGET_CPU_BITS 402PLATFORM_SET_RELEASE_FILE_OS_VALUES 403PLATFORM_SETUP_LEGACY_VARS 404]) 405 406AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION], 407[ 408############################################################################### 409 410# Note that this is the build platform OS version! 411 412OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`" 413OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`" 414OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`" 415OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`" 416AC_SUBST(OS_VERSION_MAJOR) 417AC_SUBST(OS_VERSION_MINOR) 418AC_SUBST(OS_VERSION_MICRO) 419]) 420 421# Support macro for PLATFORM_SETUP_OPENJDK_TARGET_BITS. 422# Add -mX to various FLAGS variables. 423AC_DEFUN([PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS], 424[ 425 # keep track of c/cxx flags that we added outselves... 426 # to prevent emitting warning... 427 TARGET_BITS_FLAG="-m${OPENJDK_TARGET_CPU_BITS}" 428 AC_SUBST(TARGET_BITS_FLAG) 429 430 CFLAGS="${CFLAGS} ${TARGET_BITS_FLAG}" 431 CXXFLAGS="${CXXFLAGS} ${TARGET_BITS_FLAG}" 432 LDFLAGS="${LDFLAGS} ${TARGET_BITS_FLAG}" 433 434 CFLAGS_JDK="${CFLAGS_JDK} ${TARGET_BITS_FLAG}" 435 CXXFLAGS_JDK="${CXXFLAGS_JDK} ${TARGET_BITS_FLAG}" 436 LDFLAGS_JDK="${LDFLAGS_JDK} ${TARGET_BITS_FLAG}" 437]) 438 439AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS], 440[ 441############################################################################### 442# 443# Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code. 444# (The JVM can use 32 or 64 bit Java pointers but that decision 445# is made at runtime.) 446# 447 448if test "x$OPENJDK_TARGET_OS" = xsolaris; then 449 # Always specify -m flags on Solaris 450 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 451elif test "x$COMPILE_TYPE" = xreduced; then 452 if test "x$OPENJDK_TARGET_OS" != xwindows; then 453 # Specify -m if running reduced on other Posix platforms 454 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 455 fi 456fi 457 458# Make compilation sanity check 459AC_CHECK_HEADERS([stdio.h], , [ 460 AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.]) 461 if test "x$COMPILE_TYPE" = xreduced; then 462 AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed.]) 463 elif test "x$COMPILE_TYPE" = xcross; then 464 AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.]) 465 fi 466 AC_MSG_ERROR([Cannot continue.]) 467]) 468 469AC_CHECK_SIZEOF([int *], [1111]) 470 471if test "x$SIZEOF_INT_P" != "x$ac_cv_sizeof_int_p"; then 472 # Workaround autoconf bug, see http://lists.gnu.org/archive/html/autoconf/2010-07/msg00004.html 473 SIZEOF_INT_P="$ac_cv_sizeof_int_p" 474fi 475 476if test "x$SIZEOF_INT_P" = x; then 477 # The test failed, lets stick to the assumed value. 478 AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.]) 479else 480 TESTED_TARGET_CPU_BITS=`expr 8 \* $SIZEOF_INT_P` 481 482 if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then 483 AC_MSG_ERROR([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)]) 484 fi 485fi 486 487AC_MSG_CHECKING([for target address size]) 488AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits]) 489]) 490 491AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS], 492[ 493############################################################################### 494# 495# Is the target little of big endian? 496# 497AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"]) 498 499if test "x$ENDIAN" = xuniversal_endianness; then 500 AC_MSG_ERROR([Building with both big and little endianness is not supported]) 501fi 502if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then 503 AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)]) 504fi 505]) 506