platform.m4 revision 1125:13255d60e919
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 powerpc64le) 64 VAR_CPU=ppc64 65 VAR_CPU_ARCH=ppc 66 VAR_CPU_BITS=64 67 VAR_CPU_ENDIAN=little 68 ;; 69 s390) 70 VAR_CPU=s390 71 VAR_CPU_ARCH=s390 72 VAR_CPU_BITS=32 73 VAR_CPU_ENDIAN=big 74 ;; 75 s390x) 76 VAR_CPU=s390x 77 VAR_CPU_ARCH=s390 78 VAR_CPU_BITS=64 79 VAR_CPU_ENDIAN=big 80 ;; 81 sparc) 82 VAR_CPU=sparc 83 VAR_CPU_ARCH=sparc 84 VAR_CPU_BITS=32 85 VAR_CPU_ENDIAN=big 86 ;; 87 sparcv9|sparc64) 88 VAR_CPU=sparcv9 89 VAR_CPU_ARCH=sparc 90 VAR_CPU_BITS=64 91 VAR_CPU_ENDIAN=big 92 ;; 93 *) 94 AC_MSG_ERROR([unsupported cpu $1]) 95 ;; 96 esac 97]) 98 99# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD. 100# Converts autoconf style OS name to OpenJDK style, into 101# VAR_OS and VAR_OS_API. 102AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS], 103[ 104 case "$1" in 105 *linux*) 106 VAR_OS=linux 107 VAR_OS_API=posix 108 VAR_OS_ENV=linux 109 ;; 110 *solaris*) 111 VAR_OS=solaris 112 VAR_OS_API=posix 113 VAR_OS_ENV=solaris 114 ;; 115 *darwin*) 116 VAR_OS=macosx 117 VAR_OS_API=posix 118 VAR_OS_ENV=macosx 119 ;; 120 *bsd*) 121 VAR_OS=bsd 122 VAR_OS_API=posix 123 VAR_OS_ENV=bsd 124 ;; 125 *cygwin*) 126 VAR_OS=windows 127 VAR_OS_API=winapi 128 VAR_OS_ENV=windows.cygwin 129 ;; 130 *mingw*) 131 VAR_OS=windows 132 VAR_OS_API=winapi 133 VAR_OS_ENV=windows.msys 134 ;; 135 *aix*) 136 VAR_OS=aix 137 VAR_OS_API=posix 138 VAR_OS_ENV=aix 139 ;; 140 *) 141 AC_MSG_ERROR([unsupported operating system $1]) 142 ;; 143 esac 144]) 145 146# Expects $host_os $host_cpu $build_os and $build_cpu 147# and $with_target_bits to have been setup! 148# 149# Translate the standard triplet(quadruplet) definition 150# of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU, 151# OPENJDK_BUILD_OS, etc. 152AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD], 153[ 154 # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME 155 # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME 156 # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build, 157 # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME. 158 OPENJDK_TARGET_AUTOCONF_NAME="$host" 159 OPENJDK_BUILD_AUTOCONF_NAME="$build" 160 AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME) 161 AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME) 162 163 # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables. 164 PLATFORM_EXTRACT_VARS_FROM_OS($build_os) 165 PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu) 166 # ..and setup our own variables. (Do this explicitely to facilitate searching) 167 OPENJDK_BUILD_OS="$VAR_OS" 168 OPENJDK_BUILD_OS_API="$VAR_OS_API" 169 OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV" 170 OPENJDK_BUILD_CPU="$VAR_CPU" 171 OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH" 172 OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS" 173 OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN" 174 AC_SUBST(OPENJDK_BUILD_OS) 175 AC_SUBST(OPENJDK_BUILD_OS_API) 176 AC_SUBST(OPENJDK_BUILD_OS_ENV) 177 AC_SUBST(OPENJDK_BUILD_CPU) 178 AC_SUBST(OPENJDK_BUILD_CPU_ARCH) 179 AC_SUBST(OPENJDK_BUILD_CPU_BITS) 180 AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN) 181 182 AC_MSG_CHECKING([openjdk-build os-cpu]) 183 AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU]) 184 185 # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables. 186 PLATFORM_EXTRACT_VARS_FROM_OS($host_os) 187 PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu) 188 # ... and setup our own variables. (Do this explicitely to facilitate searching) 189 OPENJDK_TARGET_OS="$VAR_OS" 190 OPENJDK_TARGET_OS_API="$VAR_OS_API" 191 OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV" 192 OPENJDK_TARGET_CPU="$VAR_CPU" 193 OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH" 194 OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS" 195 OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN" 196 AC_SUBST(OPENJDK_TARGET_OS) 197 AC_SUBST(OPENJDK_TARGET_OS_API) 198 AC_SUBST(OPENJDK_TARGET_OS_ENV) 199 AC_SUBST(OPENJDK_TARGET_CPU) 200 AC_SUBST(OPENJDK_TARGET_CPU_ARCH) 201 AC_SUBST(OPENJDK_TARGET_CPU_BITS) 202 AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN) 203 204 AC_MSG_CHECKING([openjdk-target os-cpu]) 205 AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU]) 206]) 207 208# Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour 209# accordingly. Must be done after setting up build and target system, but before 210# doing anything else with these values. 211AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS], 212[ 213 AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits], 214 [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])]) 215 216 # We have three types of compiles: 217 # native == normal compilation, target system == build system 218 # cross == traditional cross compilation, target system != build system; special toolchain needed 219 # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines 220 # 221 if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then 222 # We're doing a proper cross-compilation 223 COMPILE_TYPE="cross" 224 else 225 COMPILE_TYPE="native" 226 fi 227 228 if test "x$with_target_bits" != x; then 229 if test "x$COMPILE_TYPE" = "xcross"; then 230 AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.]) 231 fi 232 233 if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then 234 # A reduced build is requested 235 COMPILE_TYPE="reduced" 236 OPENJDK_TARGET_CPU_BITS=32 237 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 238 OPENJDK_TARGET_CPU=x86 239 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 240 OPENJDK_TARGET_CPU=sparc 241 else 242 AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9]) 243 fi 244 elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then 245 AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.]) 246 elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then 247 AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning]) 248 else 249 AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!]) 250 fi 251 fi 252 AC_SUBST(COMPILE_TYPE) 253 254 AC_MSG_CHECKING([compilation type]) 255 AC_MSG_RESULT([$COMPILE_TYPE]) 256]) 257 258# Setup the legacy variables, for controlling the old makefiles. 259# 260AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS], 261[ 262 # Also store the legacy naming of the cpu. 263 # Ie i586 and amd64 instead of x86 and x86_64 264 OPENJDK_TARGET_CPU_LEGACY="$OPENJDK_TARGET_CPU" 265 if test "x$OPENJDK_TARGET_CPU" = xx86; then 266 OPENJDK_TARGET_CPU_LEGACY="i586" 267 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 268 # On all platforms except MacOSX replace x86_64 with amd64. 269 OPENJDK_TARGET_CPU_LEGACY="amd64" 270 fi 271 AC_SUBST(OPENJDK_TARGET_CPU_LEGACY) 272 273 # And the second legacy naming of the cpu. 274 # Ie i386 and amd64 instead of x86 and x86_64. 275 OPENJDK_TARGET_CPU_LEGACY_LIB="$OPENJDK_TARGET_CPU" 276 if test "x$OPENJDK_TARGET_CPU" = xx86; then 277 OPENJDK_TARGET_CPU_LEGACY_LIB="i386" 278 elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then 279 OPENJDK_TARGET_CPU_LEGACY_LIB="amd64" 280 fi 281 AC_SUBST(OPENJDK_TARGET_CPU_LEGACY_LIB) 282 283 # This is the name of the cpu (but using i386 and amd64 instead of 284 # x86 and x86_64, respectively), preceeded by a /, to be used when 285 # locating libraries. On macosx, it's empty, though. 286 OPENJDK_TARGET_CPU_LIBDIR="/$OPENJDK_TARGET_CPU_LEGACY_LIB" 287 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 288 OPENJDK_TARGET_CPU_LIBDIR="" 289 fi 290 AC_SUBST(OPENJDK_TARGET_CPU_LIBDIR) 291 292 # OPENJDK_TARGET_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to 293 # /amd64 or /sparcv9. This string is appended to some library paths, like this: 294 # /usr/lib${OPENJDK_TARGET_CPU_ISADIR}/libexample.so 295 OPENJDK_TARGET_CPU_ISADIR="" 296 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 297 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 298 OPENJDK_TARGET_CPU_ISADIR="/amd64" 299 elif test "x$OPENJDK_TARGET_CPU" = xsparcv9; then 300 OPENJDK_TARGET_CPU_ISADIR="/sparcv9" 301 fi 302 fi 303 AC_SUBST(OPENJDK_TARGET_CPU_ISADIR) 304 305 # Setup OPENJDK_TARGET_CPU_OSARCH, which is used to set the os.arch Java system property 306 OPENJDK_TARGET_CPU_OSARCH="$OPENJDK_TARGET_CPU" 307 if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$OPENJDK_TARGET_CPU" = xx86; then 308 # On linux only, we replace x86 with i386. 309 OPENJDK_TARGET_CPU_OSARCH="i386" 310 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 311 # On all platforms except macosx, we replace x86_64 with amd64. 312 OPENJDK_TARGET_CPU_OSARCH="amd64" 313 fi 314 AC_SUBST(OPENJDK_TARGET_CPU_OSARCH) 315 316 OPENJDK_TARGET_CPU_JLI="$OPENJDK_TARGET_CPU" 317 if test "x$OPENJDK_TARGET_CPU" = xx86; then 318 OPENJDK_TARGET_CPU_JLI="i386" 319 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 320 # On all platforms except macosx, we replace x86_64 with amd64. 321 OPENJDK_TARGET_CPU_JLI="amd64" 322 fi 323 # Now setup the -D flags for building libjli. 324 OPENJDK_TARGET_CPU_JLI_CFLAGS="-DLIBARCHNAME='\"$OPENJDK_TARGET_CPU_JLI\"'" 325 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 326 if test "x$OPENJDK_TARGET_CPU_ARCH" = xsparc; then 327 OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"sparc\"' -DLIBARCH64NAME='\"sparcv9\"'" 328 elif test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 329 OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"i386\"' -DLIBARCH64NAME='\"amd64\"'" 330 fi 331 fi 332 AC_SUBST(OPENJDK_TARGET_CPU_JLI_CFLAGS) 333 334 # Setup OPENJDK_TARGET_OS_API_DIR, used in source paths. 335 if test "x$OPENJDK_TARGET_OS_API" = xposix; then 336 OPENJDK_TARGET_OS_API_DIR="unix" 337 fi 338 if test "x$OPENJDK_TARGET_OS_API" = xwinapi; then 339 OPENJDK_TARGET_OS_API_DIR="windows" 340 fi 341 AC_SUBST(OPENJDK_TARGET_OS_API_DIR) 342 343 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 344 OPENJDK_TARGET_OS_EXPORT_DIR=macosx 345 else 346 OPENJDK_TARGET_OS_EXPORT_DIR=${OPENJDK_TARGET_OS_API_DIR} 347 fi 348 AC_SUBST(OPENJDK_TARGET_OS_EXPORT_DIR) 349 350 if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then 351 A_LP64="LP64:=" 352 # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in 353 # unpack200.exe 354 if test "x$OPENJDK_TARGET_OS" = xlinux || test "x$OPENJDK_TARGET_OS" = xmacosx; then 355 ADD_LP64="-D_LP64=1" 356 fi 357 fi 358 AC_SUBST(LP64,$A_LP64) 359 360 if test "x$COMPILE_TYPE" = "xcross"; then 361 # FIXME: ... or should this include reduced builds..? 362 DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_TARGET_CPU_LEGACY" 363 else 364 DEFINE_CROSS_COMPILE_ARCH="" 365 fi 366 AC_SUBST(DEFINE_CROSS_COMPILE_ARCH) 367 368 # ZERO_ARCHDEF is used to enable architecture-specific code 369 case "${OPENJDK_TARGET_CPU}" in 370 ppc*) ZERO_ARCHDEF=PPC ;; 371 s390*) ZERO_ARCHDEF=S390 ;; 372 sparc*) ZERO_ARCHDEF=SPARC ;; 373 x86_64*) ZERO_ARCHDEF=AMD64 ;; 374 x86) ZERO_ARCHDEF=IA32 ;; 375 *) ZERO_ARCHDEF=$(echo "${OPENJDK_TARGET_CPU_LEGACY_LIB}" | tr a-z A-Z) 376 esac 377 AC_SUBST(ZERO_ARCHDEF) 378]) 379 380AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES], 381[ 382 if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then 383 REQUIRED_OS_NAME=SunOS 384 REQUIRED_OS_VERSION=5.10 385 fi 386 if test "x$OPENJDK_TARGET_OS" = "xlinux"; then 387 REQUIRED_OS_NAME=Linux 388 REQUIRED_OS_VERSION=2.6 389 fi 390 if test "x$OPENJDK_TARGET_OS" = "xwindows"; then 391 REQUIRED_OS_NAME=Windows 392 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 393 REQUIRED_OS_VERSION=5.2 394 else 395 REQUIRED_OS_VERSION=5.1 396 fi 397 fi 398 if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then 399 REQUIRED_OS_NAME=Darwin 400 REQUIRED_OS_VERSION=11.2 401 fi 402 403 AC_SUBST(REQUIRED_OS_NAME) 404 AC_SUBST(REQUIRED_OS_VERSION) 405]) 406 407#%%% Build and target systems %%% 408AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET], 409[ 410 # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target" 411 # is confusing; it assumes you are cross-compiling a cross-compiler (!) and "target" is thus the target of the 412 # product you're building. The target of this build is called "host". Since this is confusing to most people, we 413 # have not adopted that system, but use "target" as the platform we are building for. In some places though we need 414 # to use the configure naming style. 415 AC_CANONICAL_BUILD 416 AC_CANONICAL_HOST 417 AC_CANONICAL_TARGET 418 419 PLATFORM_EXTRACT_TARGET_AND_BUILD 420 PLATFORM_SETUP_TARGET_CPU_BITS 421 PLATFORM_SET_RELEASE_FILE_OS_VALUES 422 PLATFORM_SETUP_LEGACY_VARS 423]) 424 425AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION], 426[ 427 ############################################################################### 428 429 # Note that this is the build platform OS version! 430 431 OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`" 432 OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`" 433 OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`" 434 OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`" 435 AC_SUBST(OS_VERSION_MAJOR) 436 AC_SUBST(OS_VERSION_MINOR) 437 AC_SUBST(OS_VERSION_MICRO) 438]) 439 440# Support macro for PLATFORM_SETUP_OPENJDK_TARGET_BITS. 441# Add -mX to various FLAGS variables. 442AC_DEFUN([PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS], 443[ 444 # When we add flags to the "official" CFLAGS etc, we need to 445 # keep track of these additions in ADDED_CFLAGS etc. These 446 # will later be checked to make sure only controlled additions 447 # have been made to CFLAGS etc. 448 ADDED_CFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 449 ADDED_CXXFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 450 ADDED_LDFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 451 452 CFLAGS="${CFLAGS}${ADDED_CFLAGS}" 453 CXXFLAGS="${CXXFLAGS}${ADDED_CXXFLAGS}" 454 LDFLAGS="${LDFLAGS}${ADDED_LDFLAGS}" 455 456 CFLAGS_JDK="${CFLAGS_JDK}${ADDED_CFLAGS}" 457 CXXFLAGS_JDK="${CXXFLAGS_JDK}${ADDED_CXXFLAGS}" 458 LDFLAGS_JDK="${LDFLAGS_JDK}${ADDED_LDFLAGS}" 459]) 460 461AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS], 462[ 463 ############################################################################### 464 # 465 # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code. 466 # (The JVM can use 32 or 64 bit Java pointers but that decision 467 # is made at runtime.) 468 # 469 470 if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xaix; then 471 # Always specify -m flag on Solaris 472 # And -q on AIX because otherwise the compiler produces 32-bit objects by default 473 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 474 elif test "x$COMPILE_TYPE" = xreduced; then 475 if test "x$OPENJDK_TARGET_OS" != xwindows; then 476 # Specify -m if running reduced on other Posix platforms 477 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 478 fi 479 fi 480 481 # Make compilation sanity check 482 AC_CHECK_HEADERS([stdio.h], , [ 483 AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.]) 484 if test "x$COMPILE_TYPE" = xreduced; then 485 AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed.]) 486 elif test "x$COMPILE_TYPE" = xcross; then 487 AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.]) 488 fi 489 AC_MSG_ERROR([Cannot continue.]) 490 ]) 491 492 AC_CHECK_SIZEOF([int *], [1111]) 493 494 # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*' 495 if test "x$ac_cv_sizeof_int_p" = x; then 496 # The test failed, lets stick to the assumed value. 497 AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.]) 498 else 499 TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p` 500 501 if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then 502 # This situation may happen on 64-bit platforms where the compiler by default only generates 32-bit objects 503 # Let's try to implicitely set the compilers target architecture and retry the test 504 AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS).]) 505 AC_MSG_NOTICE([I'll retry after setting the platforms compiler target bits flag to ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}]) 506 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 507 508 # We have to unset 'ac_cv_sizeof_int_p' first, otherwise AC_CHECK_SIZEOF will use the previously cached value! 509 unset ac_cv_sizeof_int_p 510 # And we have to undef the definition of SIZEOF_INT_P in confdefs.h by the previous invocation of AC_CHECK_SIZEOF 511 cat >>confdefs.h <<_ACEOF 512#undef SIZEOF_INT_P 513_ACEOF 514 515 AC_CHECK_SIZEOF([int *], [1111]) 516 517 TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p` 518 519 if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then 520 AC_MSG_ERROR([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)]) 521 fi 522 fi 523 fi 524 525 AC_MSG_CHECKING([for target address size]) 526 AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits]) 527]) 528 529AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS], 530[ 531 ############################################################################### 532 # 533 # Is the target little of big endian? 534 # 535 AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"]) 536 537 if test "x$ENDIAN" = xuniversal_endianness; then 538 AC_MSG_ERROR([Building with both big and little endianness is not supported]) 539 fi 540 if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then 541 AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)]) 542 fi 543]) 544