platform.m4 revision 1351:df8fda9c150e
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 aarch64) 52 VAR_CPU=aarch64 53 VAR_CPU_ARCH=aarch64 54 VAR_CPU_BITS=64 55 VAR_CPU_ENDIAN=little 56 ;; 57 powerpc) 58 VAR_CPU=ppc 59 VAR_CPU_ARCH=ppc 60 VAR_CPU_BITS=32 61 VAR_CPU_ENDIAN=big 62 ;; 63 powerpc64) 64 VAR_CPU=ppc64 65 VAR_CPU_ARCH=ppc 66 VAR_CPU_BITS=64 67 VAR_CPU_ENDIAN=big 68 ;; 69 powerpc64le) 70 VAR_CPU=ppc64 71 VAR_CPU_ARCH=ppc 72 VAR_CPU_BITS=64 73 VAR_CPU_ENDIAN=little 74 ;; 75 s390) 76 VAR_CPU=s390 77 VAR_CPU_ARCH=s390 78 VAR_CPU_BITS=32 79 VAR_CPU_ENDIAN=big 80 ;; 81 s390x) 82 VAR_CPU=s390x 83 VAR_CPU_ARCH=s390 84 VAR_CPU_BITS=64 85 VAR_CPU_ENDIAN=big 86 ;; 87 sparc) 88 VAR_CPU=sparc 89 VAR_CPU_ARCH=sparc 90 VAR_CPU_BITS=32 91 VAR_CPU_ENDIAN=big 92 ;; 93 sparcv9|sparc64) 94 VAR_CPU=sparcv9 95 VAR_CPU_ARCH=sparc 96 VAR_CPU_BITS=64 97 VAR_CPU_ENDIAN=big 98 ;; 99 *) 100 AC_MSG_ERROR([unsupported cpu $1]) 101 ;; 102 esac 103]) 104 105# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD. 106# Converts autoconf style OS name to OpenJDK style, into 107# VAR_OS, VAR_OS_TYPE and VAR_OS_ENV. 108AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS], 109[ 110 case "$1" in 111 *linux*) 112 VAR_OS=linux 113 VAR_OS_TYPE=unix 114 ;; 115 *solaris*) 116 VAR_OS=solaris 117 VAR_OS_TYPE=unix 118 ;; 119 *darwin*) 120 VAR_OS=macosx 121 VAR_OS_TYPE=unix 122 ;; 123 *bsd*) 124 VAR_OS=bsd 125 VAR_OS_TYPE=unix 126 ;; 127 *cygwin*) 128 VAR_OS=windows 129 VAR_OS_ENV=windows.cygwin 130 ;; 131 *mingw*) 132 VAR_OS=windows 133 VAR_OS_ENV=windows.msys 134 ;; 135 *aix*) 136 VAR_OS=aix 137 VAR_OS_TYPE=unix 138 ;; 139 *) 140 AC_MSG_ERROR([unsupported operating system $1]) 141 ;; 142 esac 143]) 144 145# Expects $host_os $host_cpu $build_os and $build_cpu 146# and $with_target_bits to have been setup! 147# 148# Translate the standard triplet(quadruplet) definition 149# of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU, 150# OPENJDK_BUILD_OS, etc. 151AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD], 152[ 153 # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME 154 # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME 155 # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build, 156 # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME. 157 OPENJDK_TARGET_AUTOCONF_NAME="$host" 158 OPENJDK_BUILD_AUTOCONF_NAME="$build" 159 AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME) 160 AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME) 161 162 # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables. 163 PLATFORM_EXTRACT_VARS_FROM_OS($build_os) 164 PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu) 165 # ..and setup our own variables. (Do this explicitely to facilitate searching) 166 OPENJDK_BUILD_OS="$VAR_OS" 167 if test "x$VAR_OS_TYPE" != x; then 168 OPENJDK_BUILD_OS_TYPE="$VAR_OS_TYPE" 169 else 170 OPENJDK_BUILD_OS_TYPE="$VAR_OS" 171 fi 172 if test "x$VAR_OS_ENV" != x; then 173 OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV" 174 else 175 OPENJDK_BUILD_OS_ENV="$VAR_OS" 176 fi 177 OPENJDK_BUILD_CPU="$VAR_CPU" 178 OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH" 179 OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS" 180 OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN" 181 AC_SUBST(OPENJDK_BUILD_OS) 182 AC_SUBST(OPENJDK_BUILD_OS_TYPE) 183 AC_SUBST(OPENJDK_BUILD_OS_ENV) 184 AC_SUBST(OPENJDK_BUILD_CPU) 185 AC_SUBST(OPENJDK_BUILD_CPU_ARCH) 186 AC_SUBST(OPENJDK_BUILD_CPU_BITS) 187 AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN) 188 189 AC_MSG_CHECKING([openjdk-build os-cpu]) 190 AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU]) 191 192 # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables. 193 PLATFORM_EXTRACT_VARS_FROM_OS($host_os) 194 PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu) 195 # ... and setup our own variables. (Do this explicitely to facilitate searching) 196 OPENJDK_TARGET_OS="$VAR_OS" 197 if test "x$VAR_OS_TYPE" != x; then 198 OPENJDK_TARGET_OS_TYPE="$VAR_OS_TYPE" 199 else 200 OPENJDK_TARGET_OS_TYPE="$VAR_OS" 201 fi 202 if test "x$VAR_OS_ENV" != x; then 203 OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV" 204 else 205 OPENJDK_TARGET_OS_ENV="$VAR_OS" 206 fi 207 OPENJDK_TARGET_CPU="$VAR_CPU" 208 OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH" 209 OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS" 210 OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN" 211 AC_SUBST(OPENJDK_TARGET_OS) 212 AC_SUBST(OPENJDK_TARGET_OS_TYPE) 213 AC_SUBST(OPENJDK_TARGET_OS_ENV) 214 AC_SUBST(OPENJDK_TARGET_CPU) 215 AC_SUBST(OPENJDK_TARGET_CPU_ARCH) 216 AC_SUBST(OPENJDK_TARGET_CPU_BITS) 217 AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN) 218 219 AC_MSG_CHECKING([openjdk-target os-cpu]) 220 AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU]) 221]) 222 223# Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour 224# accordingly. Must be done after setting up build and target system, but before 225# doing anything else with these values. 226AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS], 227[ 228 AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits], 229 [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])]) 230 231 # We have three types of compiles: 232 # native == normal compilation, target system == build system 233 # cross == traditional cross compilation, target system != build system; special toolchain needed 234 # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines 235 # 236 if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then 237 # We're doing a proper cross-compilation 238 COMPILE_TYPE="cross" 239 else 240 COMPILE_TYPE="native" 241 fi 242 243 if test "x$with_target_bits" != x; then 244 if test "x$COMPILE_TYPE" = "xcross"; then 245 AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.]) 246 fi 247 248 if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then 249 # A reduced build is requested 250 COMPILE_TYPE="reduced" 251 OPENJDK_TARGET_CPU_BITS=32 252 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then 253 OPENJDK_TARGET_CPU=x86 254 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then 255 OPENJDK_TARGET_CPU=sparc 256 else 257 AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9]) 258 fi 259 elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then 260 AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.]) 261 elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then 262 AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning]) 263 else 264 AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!]) 265 fi 266 fi 267 AC_SUBST(COMPILE_TYPE) 268 269 AC_MSG_CHECKING([compilation type]) 270 AC_MSG_RESULT([$COMPILE_TYPE]) 271]) 272 273# Setup the legacy variables, for controlling the old makefiles. 274# 275AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS], 276[ 277 # Also store the legacy naming of the cpu. 278 # Ie i586 and amd64 instead of x86 and x86_64 279 OPENJDK_TARGET_CPU_LEGACY="$OPENJDK_TARGET_CPU" 280 if test "x$OPENJDK_TARGET_CPU" = xx86; then 281 OPENJDK_TARGET_CPU_LEGACY="i586" 282 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 283 # On all platforms except MacOSX replace x86_64 with amd64. 284 OPENJDK_TARGET_CPU_LEGACY="amd64" 285 fi 286 AC_SUBST(OPENJDK_TARGET_CPU_LEGACY) 287 288 # And the second legacy naming of the cpu. 289 # Ie i386 and amd64 instead of x86 and x86_64. 290 OPENJDK_TARGET_CPU_LEGACY_LIB="$OPENJDK_TARGET_CPU" 291 if test "x$OPENJDK_TARGET_CPU" = xx86; then 292 OPENJDK_TARGET_CPU_LEGACY_LIB="i386" 293 elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then 294 OPENJDK_TARGET_CPU_LEGACY_LIB="amd64" 295 fi 296 AC_SUBST(OPENJDK_TARGET_CPU_LEGACY_LIB) 297 298 # This is the name of the cpu (but using i386 and amd64 instead of 299 # x86 and x86_64, respectively), preceeded by a /, to be used when 300 # locating libraries. On macosx, it's empty, though. 301 OPENJDK_TARGET_CPU_LIBDIR="/$OPENJDK_TARGET_CPU_LEGACY_LIB" 302 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 303 OPENJDK_TARGET_CPU_LIBDIR="" 304 fi 305 AC_SUBST(OPENJDK_TARGET_CPU_LIBDIR) 306 307 # OPENJDK_TARGET_CPU_ISADIR is normally empty. On 64-bit Solaris systems, it is set to 308 # /amd64 or /sparcv9. This string is appended to some library paths, like this: 309 # /usr/lib${OPENJDK_TARGET_CPU_ISADIR}/libexample.so 310 OPENJDK_TARGET_CPU_ISADIR="" 311 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 312 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then 313 OPENJDK_TARGET_CPU_ISADIR="/amd64" 314 elif test "x$OPENJDK_TARGET_CPU" = xsparcv9; then 315 OPENJDK_TARGET_CPU_ISADIR="/sparcv9" 316 fi 317 fi 318 AC_SUBST(OPENJDK_TARGET_CPU_ISADIR) 319 320 # Setup OPENJDK_TARGET_CPU_OSARCH, which is used to set the os.arch Java system property 321 OPENJDK_TARGET_CPU_OSARCH="$OPENJDK_TARGET_CPU" 322 if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$OPENJDK_TARGET_CPU" = xx86; then 323 # On linux only, we replace x86 with i386. 324 OPENJDK_TARGET_CPU_OSARCH="i386" 325 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 326 # On all platforms except macosx, we replace x86_64 with amd64. 327 OPENJDK_TARGET_CPU_OSARCH="amd64" 328 fi 329 AC_SUBST(OPENJDK_TARGET_CPU_OSARCH) 330 331 OPENJDK_TARGET_CPU_JLI="$OPENJDK_TARGET_CPU" 332 if test "x$OPENJDK_TARGET_CPU" = xx86; then 333 OPENJDK_TARGET_CPU_JLI="i386" 334 elif test "x$OPENJDK_TARGET_OS" != xmacosx && test "x$OPENJDK_TARGET_CPU" = xx86_64; then 335 # On all platforms except macosx, we replace x86_64 with amd64. 336 OPENJDK_TARGET_CPU_JLI="amd64" 337 fi 338 # Now setup the -D flags for building libjli. 339 OPENJDK_TARGET_CPU_JLI_CFLAGS="-DLIBARCHNAME='\"$OPENJDK_TARGET_CPU_JLI\"'" 340 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 341 if test "x$OPENJDK_TARGET_CPU_ARCH" = xsparc; then 342 OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"sparc\"' -DLIBARCH64NAME='\"sparcv9\"'" 343 elif test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then 344 OPENJDK_TARGET_CPU_JLI_CFLAGS="$OPENJDK_TARGET_CPU_JLI_CFLAGS -DLIBARCH32NAME='\"i386\"' -DLIBARCH64NAME='\"amd64\"'" 345 fi 346 fi 347 AC_SUBST(OPENJDK_TARGET_CPU_JLI_CFLAGS) 348 349 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 350 OPENJDK_TARGET_OS_EXPORT_DIR=macosx 351 else 352 OPENJDK_TARGET_OS_EXPORT_DIR=${OPENJDK_TARGET_OS_TYPE} 353 fi 354 AC_SUBST(OPENJDK_TARGET_OS_EXPORT_DIR) 355 356 if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then 357 A_LP64="LP64:=" 358 # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in 359 # unpack200.exe 360 if test "x$OPENJDK_TARGET_OS" = xlinux || test "x$OPENJDK_TARGET_OS" = xmacosx; then 361 ADD_LP64="-D_LP64=1" 362 fi 363 fi 364 AC_SUBST(LP64,$A_LP64) 365 366 if test "x$COMPILE_TYPE" = "xcross"; then 367 # FIXME: ... or should this include reduced builds..? 368 DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_TARGET_CPU_LEGACY" 369 else 370 DEFINE_CROSS_COMPILE_ARCH="" 371 fi 372 AC_SUBST(DEFINE_CROSS_COMPILE_ARCH) 373 374 # ZERO_ARCHDEF is used to enable architecture-specific code 375 case "${OPENJDK_TARGET_CPU}" in 376 ppc*) ZERO_ARCHDEF=PPC ;; 377 s390*) ZERO_ARCHDEF=S390 ;; 378 sparc*) ZERO_ARCHDEF=SPARC ;; 379 x86_64*) ZERO_ARCHDEF=AMD64 ;; 380 x86) ZERO_ARCHDEF=IA32 ;; 381 *) ZERO_ARCHDEF=$(echo "${OPENJDK_TARGET_CPU_LEGACY_LIB}" | tr a-z A-Z) 382 esac 383 AC_SUBST(ZERO_ARCHDEF) 384]) 385 386AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES], 387[ 388 if test "x$OPENJDK_TARGET_OS" = "xsolaris"; then 389 REQUIRED_OS_NAME=SunOS 390 REQUIRED_OS_VERSION=5.10 391 fi 392 if test "x$OPENJDK_TARGET_OS" = "xlinux"; then 393 REQUIRED_OS_NAME=Linux 394 REQUIRED_OS_VERSION=2.6 395 fi 396 if test "x$OPENJDK_TARGET_OS" = "xwindows"; then 397 REQUIRED_OS_NAME=Windows 398 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then 399 REQUIRED_OS_VERSION=5.2 400 else 401 REQUIRED_OS_VERSION=5.1 402 fi 403 fi 404 if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then 405 REQUIRED_OS_NAME=Darwin 406 REQUIRED_OS_VERSION=11.2 407 fi 408 409 AC_SUBST(REQUIRED_OS_NAME) 410 AC_SUBST(REQUIRED_OS_VERSION) 411]) 412 413#%%% Build and target systems %%% 414AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET], 415[ 416 # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target" 417 # is confusing; it assumes you are cross-compiling a cross-compiler (!) and "target" is thus the target of the 418 # product you're building. The target of this build is called "host". Since this is confusing to most people, we 419 # have not adopted that system, but use "target" as the platform we are building for. In some places though we need 420 # to use the configure naming style. 421 AC_CANONICAL_BUILD 422 AC_CANONICAL_HOST 423 AC_CANONICAL_TARGET 424 425 PLATFORM_EXTRACT_TARGET_AND_BUILD 426 PLATFORM_SETUP_TARGET_CPU_BITS 427 PLATFORM_SET_RELEASE_FILE_OS_VALUES 428 PLATFORM_SETUP_LEGACY_VARS 429]) 430 431AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION], 432[ 433 ############################################################################### 434 435 # Note that this is the build platform OS version! 436 437 OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`" 438 OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`" 439 OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`" 440 OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`" 441 AC_SUBST(OS_VERSION_MAJOR) 442 AC_SUBST(OS_VERSION_MINOR) 443 AC_SUBST(OS_VERSION_MICRO) 444]) 445 446# Support macro for PLATFORM_SETUP_OPENJDK_TARGET_BITS. 447# Add -mX to various FLAGS variables. 448AC_DEFUN([PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS], 449[ 450 # When we add flags to the "official" CFLAGS etc, we need to 451 # keep track of these additions in ADDED_CFLAGS etc. These 452 # will later be checked to make sure only controlled additions 453 # have been made to CFLAGS etc. 454 ADDED_CFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 455 ADDED_CXXFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 456 ADDED_LDFLAGS=" ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}" 457 458 CFLAGS="${CFLAGS}${ADDED_CFLAGS}" 459 CXXFLAGS="${CXXFLAGS}${ADDED_CXXFLAGS}" 460 LDFLAGS="${LDFLAGS}${ADDED_LDFLAGS}" 461 462 CFLAGS_JDK="${CFLAGS_JDK}${ADDED_CFLAGS}" 463 CXXFLAGS_JDK="${CXXFLAGS_JDK}${ADDED_CXXFLAGS}" 464 LDFLAGS_JDK="${LDFLAGS_JDK}${ADDED_LDFLAGS}" 465]) 466 467AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS], 468[ 469 ############################################################################### 470 # 471 # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code. 472 # (The JVM can use 32 or 64 bit Java pointers but that decision 473 # is made at runtime.) 474 # 475 476 if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xaix; then 477 # Always specify -m flag on Solaris 478 # And -q on AIX because otherwise the compiler produces 32-bit objects by default 479 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 480 elif test "x$COMPILE_TYPE" = xreduced; then 481 if test "x$OPENJDK_TARGET_OS_TYPE" = xunix; then 482 # Specify -m if running reduced on unix platforms 483 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 484 fi 485 fi 486 487 # Make compilation sanity check 488 AC_CHECK_HEADERS([stdio.h], , [ 489 AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.]) 490 if test "x$COMPILE_TYPE" = xreduced; then 491 AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed.]) 492 elif test "x$COMPILE_TYPE" = xcross; then 493 AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.]) 494 fi 495 AC_MSG_ERROR([Cannot continue.]) 496 ]) 497 498 AC_CHECK_SIZEOF([int *], [1111]) 499 500 # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*' 501 if test "x$ac_cv_sizeof_int_p" = x; then 502 # The test failed, lets stick to the assumed value. 503 AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.]) 504 else 505 TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p` 506 507 if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then 508 # This situation may happen on 64-bit platforms where the compiler by default only generates 32-bit objects 509 # Let's try to implicitely set the compilers target architecture and retry the test 510 AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS).]) 511 AC_MSG_NOTICE([I'll retry after setting the platforms compiler target bits flag to ${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}]) 512 PLATFORM_SET_COMPILER_TARGET_BITS_FLAGS 513 514 # We have to unset 'ac_cv_sizeof_int_p' first, otherwise AC_CHECK_SIZEOF will use the previously cached value! 515 unset ac_cv_sizeof_int_p 516 # And we have to undef the definition of SIZEOF_INT_P in confdefs.h by the previous invocation of AC_CHECK_SIZEOF 517 cat >>confdefs.h <<_ACEOF 518#undef SIZEOF_INT_P 519_ACEOF 520 521 AC_CHECK_SIZEOF([int *], [1111]) 522 523 TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p` 524 525 if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then 526 AC_MSG_ERROR([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)]) 527 fi 528 fi 529 fi 530 531 AC_MSG_CHECKING([for target address size]) 532 AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits]) 533]) 534 535AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS], 536[ 537 ############################################################################### 538 # 539 # Is the target little of big endian? 540 # 541 AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"]) 542 543 if test "x$ENDIAN" = xuniversal_endianness; then 544 AC_MSG_ERROR([Building with both big and little endianness is not supported]) 545 fi 546 if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then 547 AC_MSG_ERROR([The tested endian in the target ($ENDIAN) differs from the endian expected to be found in the target ($OPENJDK_TARGET_CPU_ENDIAN)]) 548 fi 549]) 550