platform.m4 revision 946:f3697e0783e2
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 *aix*) 130 VAR_OS=aix 131 VAR_OS_API=posix 132 VAR_OS_ENV=aix 133 ;; 134 *) 135 AC_MSG_ERROR([unsupported operating system $1]) 136 ;; 137 esac 138]) 139 140# Expects $host_os $host_cpu $build_os and $build_cpu 141# and $with_target_bits to have been setup! 142# 143# Translate the standard triplet(quadruplet) definition 144# of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU, 145# OPENJDK_BUILD_OS, etc. 146AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD], 147[ 148 # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME 149 # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME 150 # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build, 151 # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME. 152 OPENJDK_TARGET_AUTOCONF_NAME="$host" 153 OPENJDK_BUILD_AUTOCONF_NAME="$build" 154 AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME) 155 AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME) 156 157 # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables. 158 PLATFORM_EXTRACT_VARS_FROM_OS($build_os) 159 PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu) 160 # ..and setup our own variables. (Do this explicitely to facilitate searching) 161 OPENJDK_BUILD_OS="$VAR_OS" 162 OPENJDK_BUILD_OS_API="$VAR_OS_API" 163 OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV" 164 OPENJDK_BUILD_CPU="$VAR_CPU" 165 OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH" 166 OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS" 167 OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN" 168 AC_SUBST(OPENJDK_BUILD_OS) 169 AC_SUBST(OPENJDK_BUILD_OS_API) 170 AC_SUBST(OPENJDK_BUILD_CPU) 171 AC_SUBST(OPENJDK_BUILD_CPU_ARCH) 172 AC_SUBST(OPENJDK_BUILD_CPU_BITS) 173 AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN) 174 175 AC_MSG_CHECKING([openjdk-build os-cpu]) 176 AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU]) 177 178 # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables. 179 PLATFORM_EXTRACT_VARS_FROM_OS($host_os) 180 PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu) 181 # ... and setup our own variables. (Do this explicitely to facilitate searching) 182 OPENJDK_TARGET_OS="$VAR_OS" 183 OPENJDK_TARGET_OS_API="$VAR_OS_API" 184 OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV" 185 OPENJDK_TARGET_CPU="$VAR_CPU" 186 OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH" 187 OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS" 188 OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN" 189 AC_SUBST(OPENJDK_TARGET_OS) 190 AC_SUBST(OPENJDK_TARGET_OS_API) 191 AC_SUBST(OPENJDK_TARGET_CPU) 192 AC_SUBST(OPENJDK_TARGET_CPU_ARCH) 193 AC_SUBST(OPENJDK_TARGET_CPU_BITS) 194 AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN) 195 196 AC_MSG_CHECKING([openjdk-target os-cpu]) 197 AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU]) 198]) 199 200# Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour 201# accordingly. Must be done after setting up build and target system, but before 202# doing anything else with these values. 203AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS], 204[ 205 AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits], 206 [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])]) 207 208 # We have three types of compiles: 209 # native == normal compilation, target system == build system 210 # cross == traditional cross compilation, target system != build system; special toolchain needed 211 # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines 212 # 213 if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then 214 # We're doing a proper cross-compilation 215 COMPILE_TYPE="cross" 216 else 217 COMPILE_TYPE="native" 218 fi 219 220 if test "x$with_target_bits" != x; then 221 if test "x$COMPILE_TYPE" = "xcross"; then 222 AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.]) 223 fi 224 225 if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then 226 # A reduced build is requested 227 COMPILE_TYPE="reduced" 228 OPENJDK_TARGET_CPU_BITS=32 229 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 230 OPENJDK_TARGET_CPU=x86 231 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 232 OPENJDK_TARGET_CPU=sparc 233 else 234 AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9]) 235 fi 236 elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then 237 AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.]) 238 elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then 239 AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning]) 240 else 241 AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!]) 242 fi 243 fi 244 AC_SUBST(COMPILE_TYPE) 245 246 AC_MSG_CHECKING([compilation type]) 247 AC_MSG_RESULT([$COMPILE_TYPE]) 248]) 249 250# Setup the legacy variables, for controlling the old makefiles. 251# 252AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS], 253[ 254 # Also store the legacy naming of the cpu. 255 # Ie i586 and amd64 instead of x86 and x86_64 256 OPENJDK_TARGET_CPU_LEGACY="$OPENJDK_TARGET_CPU" 257 if test "x$OPENJDK_TARGET_CPU" = xx86; then 258 OPENJDK_TARGET_CPU_LEGACY="i586" 259 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 260 # On all platforms except MacOSX replace x86_64 with amd64. 261 OPENJDK_TARGET_CPU_LEGACY="amd64" 262 fi 263 AC_SUBST(OPENJDK_TARGET_CPU_LEGACY) 264 265 # And the second legacy naming of the cpu. 266 # Ie i386 and amd64 instead of x86 and x86_64. 267 OPENJDK_TARGET_CPU_LEGACY_LIB="$OPENJDK_TARGET_CPU" 268 if test "x$OPENJDK_TARGET_CPU" = xx86; then 269 OPENJDK_TARGET_CPU_LEGACY_LIB="i386" 270 elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then 271 OPENJDK_TARGET_CPU_LEGACY_LIB="amd64" 272 fi 273 AC_SUBST(OPENJDK_TARGET_CPU_LEGACY_LIB) 274 275 # This is the name of the cpu (but using i386 and amd64 instead of 276 # x86 and x86_64, respectively), preceeded by a /, to be used when 277 # locating libraries. On macosx, it's empty, though. 278 OPENJDK_TARGET_CPU_LIBDIR="/$OPENJDK_TARGET_CPU_LEGACY_LIB" 279 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 280 OPENJDK_TARGET_CPU_LIBDIR="" 281 fi 282 AC_SUBST(OPENJDK_TARGET_CPU_LIBDIR) 283 284 # OPENJDK_TARGET_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to 285 # /amd64 or /sparcv9. This string is appended to some library paths, like this: 286 # /usr/lib${OPENJDK_TARGET_CPU_ISADIR}/libexample.so 287 OPENJDK_TARGET_CPU_ISADIR="" 288 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 289 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 290 OPENJDK_TARGET_CPU_ISADIR="/amd64" 291 elif test "x$OPENJDK_TARGET_CPU" = xsparcv9; then 292 OPENJDK_TARGET_CPU_ISADIR="/sparcv9" 293 fi 294 fi 295 AC_SUBST(OPENJDK_TARGET_CPU_ISADIR) 296 297 # Setup OPENJDK_TARGET_CPU_OSARCH, which is used to set the os.arch Java system property 298 OPENJDK_TARGET_CPU_OSARCH="$OPENJDK_TARGET_CPU" 299 if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$OPENJDK_TARGET_CPU" = xx86; then 300 # On linux only, we replace x86 with i386. 301 OPENJDK_TARGET_CPU_OSARCH="i386" 302 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 303 # On all platforms except macosx, we replace x86_64 with amd64. 304 OPENJDK_TARGET_CPU_OSARCH="amd64" 305 fi 306 AC_SUBST(OPENJDK_TARGET_CPU_OSARCH) 307 308 OPENJDK_TARGET_CPU_JLI="$OPENJDK_TARGET_CPU" 309 if test "x$OPENJDK_TARGET_CPU" = xx86; then 310 OPENJDK_TARGET_CPU_JLI="i386" 311 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 312 # On all platforms except macosx, we replace x86_64 with amd64. 313 OPENJDK_TARGET_CPU_JLI="amd64" 314 fi 315 # Now setup the -D flags for building libjli. 316 OPENJDK_TARGET_CPU_JLI_CFLAGS="-DLIBARCHNAME='\"$OPENJDK_TARGET_CPU_JLI\"'" 317 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 318 if test "x$OPENJDK_TARGET_CPU_ARCH" = xsparc; then 319 OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"sparc\"' -DLIBARCH64NAME='\"sparcv9\"'" 320 elif test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 321 OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"i386\"' -DLIBARCH64NAME='\"amd64\"'" 322 fi 323 fi 324 AC_SUBST(OPENJDK_TARGET_CPU_JLI_CFLAGS) 325 326 # Setup OPENJDK_TARGET_OS_API_DIR, used in source paths. 327 if test "x$OPENJDK_TARGET_OS_API" = xposix; then 328 OPENJDK_TARGET_OS_API_DIR="solaris" 329 fi 330 if test "x$OPENJDK_TARGET_OS_API" = xwinapi; then 331 OPENJDK_TARGET_OS_API_DIR="windows" 332 fi 333 AC_SUBST(OPENJDK_TARGET_OS_API_DIR) 334 335 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 336 OPENJDK_TARGET_OS_EXPORT_DIR=macosx 337 else 338 OPENJDK_TARGET_OS_EXPORT_DIR=${OPENJDK_TARGET_OS_API_DIR} 339 fi 340 AC_SUBST(OPENJDK_TARGET_OS_EXPORT_DIR) 341 342 if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then 343 A_LP64="LP64:=" 344 # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in 345 # unpack200.exe 346 if test "x$OPENJDK_TARGET_OS" = xlinux || test "x$OPENJDK_TARGET_OS" = xmacosx; then 347 ADD_LP64="-D_LP64=1" 348 fi 349 fi 350 AC_SUBST(LP64,$A_LP64) 351 352 if test "x$COMPILE_TYPE" = "xcross"; then 353 # FIXME: ... or should this include reduced builds..? 354 DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_TARGET_CPU_LEGACY" 355 else 356 DEFINE_CROSS_COMPILE_ARCH="" 357 fi 358 AC_SUBST(DEFINE_CROSS_COMPILE_ARCH) 359 360 # ZERO_ARCHDEF is used to enable architecture-specific code 361 case "${OPENJDK_TARGET_CPU}" in 362 ppc*) ZERO_ARCHDEF=PPC ;; 363 s390*) ZERO_ARCHDEF=S390 ;; 364 sparc*) ZERO_ARCHDEF=SPARC ;; 365 x86_64*) ZERO_ARCHDEF=AMD64 ;; 366 x86) ZERO_ARCHDEF=IA32 ;; 367 *) ZERO_ARCHDEF=$(echo "${OPENJDK_TARGET_CPU_LEGACY_LIB}" | tr a-z A-Z) 368 esac 369 AC_SUBST(ZERO_ARCHDEF) 370]) 371 372AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES], 373[ 374 if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then 375 REQUIRED_OS_NAME=SunOS 376 REQUIRED_OS_VERSION=5.10 377 fi 378 if test "x$OPENJDK_TARGET_OS" = "xlinux"; then 379 REQUIRED_OS_NAME=Linux 380 REQUIRED_OS_VERSION=2.6 381 fi 382 if test "x$OPENJDK_TARGET_OS" = "xwindows"; then 383 REQUIRED_OS_NAME=Windows 384 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 385 REQUIRED_OS_VERSION=5.2 386 else 387 REQUIRED_OS_VERSION=5.1 388 fi 389 fi 390 if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then 391 REQUIRED_OS_NAME=Darwin 392 REQUIRED_OS_VERSION=11.2 393 fi 394 395 AC_SUBST(REQUIRED_OS_NAME) 396 AC_SUBST(REQUIRED_OS_VERSION) 397]) 398 399#%%% Build and target systems %%% 400AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET], 401[ 402 # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target" 403 # is confusing; it assumes you are cross-compiling a cross-compiler (!) and "target" is thus the target of the 404 # product you're building. The target of this build is called "host". Since this is confusing to most people, we 405 # have not adopted that system, but use "target" as the platform we are building for. In some places though we need 406 # to use the configure naming style. 407 AC_CANONICAL_BUILD 408 AC_CANONICAL_HOST 409 AC_CANONICAL_TARGET 410 411 PLATFORM_EXTRACT_TARGET_AND_BUILD 412 PLATFORM_SETUP_TARGET_CPU_BITS 413 PLATFORM_SET_RELEASE_FILE_OS_VALUES 414 PLATFORM_SETUP_LEGACY_VARS 415]) 416 417AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION], 418[ 419 ############################################################################### 420 421 # Note that this is the build platform OS version! 422 423 OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`" 424 OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`" 425 OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`" 426 OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`" 427 AC_SUBST(OS_VERSION_MAJOR) 428 AC_SUBST(OS_VERSION_MINOR) 429 AC_SUBST(OS_VERSION_MICRO) 430]) 431 432# Support macro for PLATFORM_SETUP_OPENJDK_TARGET_BITS. 433# Add -mX to various FLAGS variables. 434AC_DEFUN([PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS], 435[ 436 # When we add flags to the "official" CFLAGS etc, we need to 437 # keep track of these additions in ADDED_CFLAGS etc. These 438 # will later be checked to make sure only controlled additions 439 # have been made to CFLAGS etc. 440 ADDED_CFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 441 ADDED_CXXFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 442 ADDED_LDFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 443 444 CFLAGS="${CFLAGS}${ADDED_CFLAGS}" 445 CXXFLAGS="${CXXFLAGS}${ADDED_CXXFLAGS}" 446 LDFLAGS="${LDFLAGS}${ADDED_LDFLAGS}" 447 448 CFLAGS_JDK="${CFLAGS_JDK}${ADDED_CFLAGS}" 449 CXXFLAGS_JDK="${CXXFLAGS_JDK}${ADDED_CXXFLAGS}" 450 LDFLAGS_JDK="${LDFLAGS_JDK}${ADDED_LDFLAGS}" 451]) 452 453AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS], 454[ 455 ############################################################################### 456 # 457 # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code. 458 # (The JVM can use 32 or 64 bit Java pointers but that decision 459 # is made at runtime.) 460 # 461 462 if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xaix; then 463 # Always specify -m flag on Solaris 464 # And -q on AIX because otherwise the compiler produces 32-bit objects by default 465 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 466 elif test "x$COMPILE_TYPE" = xreduced; then 467 if test "x$OPENJDK_TARGET_OS" != xwindows; then 468 # Specify -m if running reduced on other Posix platforms 469 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 470 fi 471 fi 472 473 # Make compilation sanity check 474 AC_CHECK_HEADERS([stdio.h], , [ 475 AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.]) 476 if test "x$COMPILE_TYPE" = xreduced; then 477 AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed.]) 478 elif test "x$COMPILE_TYPE" = xcross; then 479 AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.]) 480 fi 481 AC_MSG_ERROR([Cannot continue.]) 482 ]) 483 484 AC_CHECK_SIZEOF([int *], [1111]) 485 486 # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*' 487 if test "x$ac_cv_sizeof_int_p" = x; then 488 # The test failed, lets stick to the assumed value. 489 AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.]) 490 else 491 TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p` 492 493 if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then 494 # This situation may happen on 64-bit platforms where the compiler by default only generates 32-bit objects 495 # Let's try to implicitely set the compilers target architecture and retry the test 496 AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS).]) 497 AC_MSG_NOTICE([I'll retry after setting the platforms compiler target bits flag to ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}]) 498 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 499 500 # We have to unset 'ac_cv_sizeof_int_p' first, otherwise AC_CHECK_SIZEOF will use the previously cached value! 501 unset ac_cv_sizeof_int_p 502 # And we have to undef the definition of SIZEOF_INT_P in confdefs.h by the previous invocation of AC_CHECK_SIZEOF 503 cat >>confdefs.h <<_ACEOF 504#undef SIZEOF_INT_P 505_ACEOF 506 507 AC_CHECK_SIZEOF([int *], [1111]) 508 509 TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p` 510 511 if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then 512 AC_MSG_ERROR([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)]) 513 fi 514 fi 515 fi 516 517 AC_MSG_CHECKING([for target address size]) 518 AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits]) 519]) 520 521AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS], 522[ 523 ############################################################################### 524 # 525 # Is the target little of big endian? 526 # 527 AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"]) 528 529 if test "x$ENDIAN" = xuniversal_endianness; then 530 AC_MSG_ERROR([Building with both big and little endianness is not supported]) 531 fi 532 if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then 533 AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)]) 534 fi 535]) 536