1#
2# Copyright (c) 2011, 2020, 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*x32)
34      VAR_CPU=x32
35      VAR_CPU_ARCH=x86
36      VAR_CPU_BITS=32
37      VAR_CPU_ENDIAN=little
38      ;;
39    amd64|x86_64)
40      VAR_CPU=x86_64
41      VAR_CPU_ARCH=x86
42      VAR_CPU_BITS=64
43      VAR_CPU_ENDIAN=little
44      ;;
45    i?86)
46      VAR_CPU=x86
47      VAR_CPU_ARCH=x86
48      VAR_CPU_BITS=32
49      VAR_CPU_ENDIAN=little
50      ;;
51    alpha*)
52      VAR_CPU=alpha
53      VAR_CPU_ARCH=alpha
54      VAR_CPU_BITS=64
55      VAR_CPU_ENDIAN=little
56      ;;
57    arm*)
58      VAR_CPU=arm
59      VAR_CPU_ARCH=arm
60      VAR_CPU_BITS=32
61      VAR_CPU_ENDIAN=little
62      ;;
63    aarch64)
64      VAR_CPU=aarch64
65      VAR_CPU_ARCH=aarch64
66      VAR_CPU_BITS=64
67      VAR_CPU_ENDIAN=little
68      ;;
69    ia64)
70      VAR_CPU=ia64
71      VAR_CPU_ARCH=ia64
72      VAR_CPU_BITS=64
73      VAR_CPU_ENDIAN=little
74      ;;
75    m68k)
76      VAR_CPU=m68k
77      VAR_CPU_ARCH=m68k
78      VAR_CPU_BITS=32
79      VAR_CPU_ENDIAN=big
80      ;;
81    mips)
82      VAR_CPU=mips
83      VAR_CPU_ARCH=mips
84      VAR_CPU_BITS=32
85      VAR_CPU_ENDIAN=big
86      ;;
87    mipsel)
88      VAR_CPU=mipsel
89      VAR_CPU_ARCH=mipsel
90      VAR_CPU_BITS=32
91      VAR_CPU_ENDIAN=little
92      ;;
93    mips64)
94      VAR_CPU=mips64
95      VAR_CPU_ARCH=mips64
96      VAR_CPU_BITS=64
97      VAR_CPU_ENDIAN=big
98      ;;
99    mips64el)
100      VAR_CPU=mips64el
101      VAR_CPU_ARCH=mips64el
102      VAR_CPU_BITS=64
103      VAR_CPU_ENDIAN=little
104      ;;
105    powerpc)
106      VAR_CPU=ppc
107      VAR_CPU_ARCH=ppc
108      VAR_CPU_BITS=32
109      VAR_CPU_ENDIAN=big
110      ;;
111    powerpc64)
112      VAR_CPU=ppc64
113      VAR_CPU_ARCH=ppc
114      VAR_CPU_BITS=64
115      VAR_CPU_ENDIAN=big
116      ;;
117    powerpc64le)
118      VAR_CPU=ppc64le
119      VAR_CPU_ARCH=ppc
120      VAR_CPU_BITS=64
121      VAR_CPU_ENDIAN=little
122      ;;
123    riscv64)
124      VAR_CPU=riscv64
125      VAR_CPU_ARCH=riscv
126      VAR_CPU_BITS=64
127      VAR_CPU_ENDIAN=little
128      ;;
129    s390)
130      VAR_CPU=s390
131      VAR_CPU_ARCH=s390
132      VAR_CPU_BITS=32
133      VAR_CPU_ENDIAN=big
134      ;;
135    s390x)
136      VAR_CPU=s390x
137      VAR_CPU_ARCH=s390
138      VAR_CPU_BITS=64
139      VAR_CPU_ENDIAN=big
140      ;;
141    sh*eb)
142      VAR_CPU=sh
143      VAR_CPU_ARCH=sh
144      VAR_CPU_BITS=32
145      VAR_CPU_ENDIAN=big
146      ;;
147    sh*)
148      VAR_CPU=sh
149      VAR_CPU_ARCH=sh
150      VAR_CPU_BITS=32
151      VAR_CPU_ENDIAN=little
152      ;;
153    sparc)
154      VAR_CPU=sparc
155      VAR_CPU_ARCH=sparc
156      VAR_CPU_BITS=32
157      VAR_CPU_ENDIAN=big
158      ;;
159    sparcv9|sparc64)
160      VAR_CPU=sparcv9
161      VAR_CPU_ARCH=sparc
162      VAR_CPU_BITS=64
163      VAR_CPU_ENDIAN=big
164      ;;
165    sparc)
166      VAR_CPU=sparc
167      VAR_CPU_ARCH=sparc
168      VAR_CPU_BITS=32
169      VAR_CPU_ENDIAN=big
170      ;;
171    sparcv9|sparc64)
172      VAR_CPU=sparcv9
173      VAR_CPU_ARCH=sparc
174      VAR_CPU_BITS=64
175      VAR_CPU_ENDIAN=big
176      ;;
177    *)
178      AC_MSG_ERROR([unsupported cpu $1])
179      ;;
180  esac
181])
182
183# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
184# Converts autoconf style OS name to OpenJDK style, into
185# VAR_OS, VAR_OS_TYPE and VAR_OS_ENV.
186AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
187[
188  case "$1" in
189    *linux*)
190      VAR_OS=linux
191      VAR_OS_TYPE=unix
192      ;;
193    *darwin*)
194      VAR_OS=macosx
195      VAR_OS_TYPE=unix
196      ;;
197    *bsd*|*dragonfly*)
198      VAR_OS=bsd
199      VAR_OS_TYPE=unix
200      case "$1" in
201        *freebsd*|*dragonfly*)
202          VAR_OS_ENV=bsd.freebsd ;;
203        *openbsd*)
204          VAR_OS_ENV=bsd.openbsd ;;
205        *netbsd*)
206          VAR_OS_ENV=bsd.netbsd ;;
207      esac
208      ;;
209    *cygwin*)
210      VAR_OS=windows
211      VAR_OS_ENV=windows.cygwin
212      ;;
213    *wsl*)
214      VAR_OS=windows
215      VAR_OS_ENV=windows.wsl
216      ;;
217    *mingw*)
218      VAR_OS=windows
219      VAR_OS_ENV=windows.msys
220      ;;
221    *aix*)
222      VAR_OS=aix
223      VAR_OS_TYPE=unix
224      ;;
225    *)
226      AC_MSG_ERROR([unsupported operating system $1])
227      ;;
228  esac
229])
230
231# Expects $host_os $host_cpu $build_os and $build_cpu
232# and $with_target_bits to have been setup!
233#
234# Translate the standard triplet(quadruplet) definition
235# of the target/build system into OPENJDK_TARGET_OS, OPENJDK_TARGET_CPU,
236# OPENJDK_BUILD_OS, etc.
237AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
238[
239  # Copy the autoconf trip/quadruplet verbatim to OPENJDK_TARGET_AUTOCONF_NAME
240  # (from the autoconf "host") and OPENJDK_BUILD_AUTOCONF_NAME
241  # Note that we might later on rewrite e.g. OPENJDK_TARGET_CPU due to reduced build,
242  # but this will not change the value of OPENJDK_TARGET_AUTOCONF_NAME.
243  OPENJDK_TARGET_AUTOCONF_NAME="$host"
244  OPENJDK_BUILD_AUTOCONF_NAME="$build"
245  AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
246  AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
247
248  # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
249  PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
250  PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
251  # ..and setup our own variables. (Do this explicitly to facilitate searching)
252  OPENJDK_BUILD_OS="$VAR_OS"
253  if test "x$VAR_OS_TYPE" != x; then
254    OPENJDK_BUILD_OS_TYPE="$VAR_OS_TYPE"
255  else
256    OPENJDK_BUILD_OS_TYPE="$VAR_OS"
257  fi
258  if test "x$VAR_OS_ENV" != x; then
259    OPENJDK_BUILD_OS_ENV="$VAR_OS_ENV"
260  else
261    OPENJDK_BUILD_OS_ENV="$VAR_OS"
262  fi
263  OPENJDK_BUILD_CPU="$VAR_CPU"
264  OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
265  OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
266  OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
267  AC_SUBST(OPENJDK_BUILD_OS)
268  AC_SUBST(OPENJDK_BUILD_OS_TYPE)
269  AC_SUBST(OPENJDK_BUILD_OS_ENV)
270  AC_SUBST(OPENJDK_BUILD_CPU)
271  AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
272  AC_SUBST(OPENJDK_BUILD_CPU_BITS)
273  AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
274
275  AC_MSG_CHECKING([openjdk-build os-cpu])
276  AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
277
278  # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
279  PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
280  PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
281  # ... and setup our own variables. (Do this explicitly to facilitate searching)
282  OPENJDK_TARGET_OS="$VAR_OS"
283  if test "x$VAR_OS_TYPE" != x; then
284    OPENJDK_TARGET_OS_TYPE="$VAR_OS_TYPE"
285  else
286    OPENJDK_TARGET_OS_TYPE="$VAR_OS"
287  fi
288  if test "x$VAR_OS_ENV" != x; then
289    OPENJDK_TARGET_OS_ENV="$VAR_OS_ENV"
290  else
291    OPENJDK_TARGET_OS_ENV="$VAR_OS"
292  fi
293  OPENJDK_TARGET_CPU="$VAR_CPU"
294  OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
295  OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
296  OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
297  OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
298
299  AC_SUBST(OPENJDK_TARGET_OS)
300  AC_SUBST(OPENJDK_TARGET_OS_TYPE)
301  AC_SUBST(OPENJDK_TARGET_OS_ENV)
302  AC_SUBST(OPENJDK_TARGET_OS_UPPERCASE)
303  AC_SUBST(OPENJDK_TARGET_CPU)
304  AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
305  AC_SUBST(OPENJDK_TARGET_CPU_BITS)
306  AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
307
308  AC_MSG_CHECKING([openjdk-target os-cpu])
309  AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
310
311  if test "x$OPENJDK_TARGET_OS_ENV" != "x$OPENJDK_TARGET_OS"; then
312    AC_MSG_CHECKING([openjdk-target os-env])
313    AC_MSG_RESULT([$OPENJDK_TARGET_OS_ENV])
314  fi
315])
316
317# Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
318# accordingly. Must be done after setting up build and target system, but before
319# doing anything else with these values.
320AC_DEFUN([PLATFORM_SETUP_TARGET_CPU_BITS],
321[
322  AC_ARG_WITH(target-bits, [AS_HELP_STRING([--with-target-bits],
323       [build 32-bit or 64-bit binaries (for platforms that support it), e.g. --with-target-bits=32 @<:@guessed@:>@])])
324
325  # We have three types of compiles:
326  # native  == normal compilation, target system == build system
327  # cross   == traditional cross compilation, target system != build system; special toolchain needed
328  # reduced == using native compilers, but with special flags (e.g. -m32) to produce 32-bit builds on 64-bit machines
329  #
330  if test "x$OPENJDK_BUILD_AUTOCONF_NAME" != "x$OPENJDK_TARGET_AUTOCONF_NAME"; then
331    # We're doing a proper cross-compilation
332    COMPILE_TYPE="cross"
333  else
334    COMPILE_TYPE="native"
335  fi
336
337  if test "x$with_target_bits" != x; then
338    if test "x$COMPILE_TYPE" = "xcross"; then
339      AC_MSG_ERROR([It is not possible to combine --with-target-bits=X and proper cross-compilation. Choose either.])
340    fi
341
342    if test "x$with_target_bits" = x32 && test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
343      # A reduced build is requested
344      COMPILE_TYPE="reduced"
345      OPENJDK_TARGET_CPU_BITS=32
346      if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
347        OPENJDK_TARGET_CPU=x86
348      elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
349        OPENJDK_TARGET_CPU=sparc
350      else
351        AC_MSG_ERROR([Reduced build (--with-target-bits=32) is only supported on x86_64 and sparcv9])
352      fi
353    elif test "x$with_target_bits" = x64 && test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
354      AC_MSG_ERROR([It is not possible to use --with-target-bits=64 on a 32 bit system. Use proper cross-compilation instead.])
355    elif test "x$with_target_bits" = "x$OPENJDK_TARGET_CPU_BITS"; then
356      AC_MSG_NOTICE([--with-target-bits are set to build platform address size; argument has no meaning])
357    else
358      AC_MSG_ERROR([--with-target-bits can only be 32 or 64, you specified $with_target_bits!])
359    fi
360  fi
361  AC_SUBST(COMPILE_TYPE)
362
363  AC_MSG_CHECKING([compilation type])
364  AC_MSG_RESULT([$COMPILE_TYPE])
365])
366
367# Setup the legacy variables, for controlling the old makefiles.
368#
369AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS],
370[
371  PLATFORM_SETUP_LEGACY_VARS_HELPER([TARGET])
372  PLATFORM_SETUP_LEGACY_VARS_HELPER([BUILD])
373])
374
375# $1 - Either TARGET or BUILD to setup the variables for.
376AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
377[
378  # Also store the legacy naming of the cpu.
379  # Ie i586 and amd64 instead of x86 and x86_64
380  OPENJDK_$1_CPU_LEGACY="$OPENJDK_$1_CPU"
381  if test "x$OPENJDK_$1_CPU" = xx86; then
382    OPENJDK_$1_CPU_LEGACY="i586"
383  elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
384    # On all platforms except MacOSX replace x86_64 with amd64.
385    OPENJDK_$1_CPU_LEGACY="amd64"
386  elif test "x$OPENJDK_$1_CPU" = xalpha; then
387    # Avoid name collisions with variables named alpha
388    OPENJDK_$1_CPU_LEGACY="_alpha_"
389  elif test "x$OPENJDK_$1_CPU" = xsh; then
390    # Avoid name collisions with variables named sh
391    OPENJDK_$1_CPU_LEGACY="_sh_"
392  fi
393  AC_SUBST(OPENJDK_$1_CPU_LEGACY)
394
395  # And the second legacy naming of the cpu.
396  # Ie i386 and amd64 instead of x86 and x86_64.
397  OPENJDK_$1_CPU_LEGACY_LIB="$OPENJDK_$1_CPU"
398  if test "x$OPENJDK_$1_CPU" = xx86; then
399    OPENJDK_$1_CPU_LEGACY_LIB="i386"
400  elif test "x$OPENJDK_$1_CPU" = xx86_64; then
401    OPENJDK_$1_CPU_LEGACY_LIB="amd64"
402  fi
403  AC_SUBST(OPENJDK_$1_CPU_LEGACY_LIB)
404
405  # Setup OPENJDK_$1_CPU_OSARCH, which is used to set the os.arch Java system property
406  OPENJDK_$1_CPU_OSARCH="$OPENJDK_$1_CPU"
407  if test "x$OPENJDK_TARGET_OS" = xbsd -o "x$OPENJDK_$1_OS" = xlinux && test "x$OPENJDK_$1_CPU" = xx86; then
408    # On linux and BSD only, we replace x86 with i386.
409    OPENJDK_$1_CPU_OSARCH="i386"
410  elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
411    # On all platforms except macosx, we replace x86_64 with amd64.
412    OPENJDK_$1_CPU_OSARCH="amd64"
413  fi
414  AC_SUBST(OPENJDK_$1_CPU_OSARCH)
415
416  OPENJDK_$1_CPU_JLI="$OPENJDK_$1_CPU"
417  if test "x$OPENJDK_$1_CPU" = xx86; then
418    OPENJDK_$1_CPU_JLI="i386"
419  elif test "x$OPENJDK_$1_OS" != xmacosx && test "x$OPENJDK_$1_CPU" = xx86_64; then
420    # On all platforms except macosx, we replace x86_64 with amd64.
421    OPENJDK_$1_CPU_JLI="amd64"
422  fi
423
424  # The new version string in JDK 9 also defined new naming of OS and ARCH for bundles
425  # Macosx is osx and x86_64 is x64
426  if test "x$OPENJDK_$1_OS" = xmacosx; then
427    OPENJDK_$1_OS_BUNDLE="osx"
428  else
429    OPENJDK_$1_OS_BUNDLE="$OPENJDK_TARGET_OS"
430  fi
431  if test "x$OPENJDK_$1_CPU" = xx86_64; then
432    OPENJDK_$1_CPU_BUNDLE="x64"
433  else
434    OPENJDK_$1_CPU_BUNDLE="$OPENJDK_$1_CPU"
435  fi
436  OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}"
437  AC_SUBST(OPENJDK_$1_BUNDLE_PLATFORM)
438
439  if test "x$COMPILE_TYPE" = "xcross"; then
440    # FIXME: ... or should this include reduced builds..?
441    DEFINE_CROSS_COMPILE_ARCH="CROSS_COMPILE_ARCH:=$OPENJDK_$1_CPU_LEGACY"
442  else
443    DEFINE_CROSS_COMPILE_ARCH=""
444  fi
445  AC_SUBST(DEFINE_CROSS_COMPILE_ARCH)
446
447  # Convert openjdk platform names to hotspot names
448
449  HOTSPOT_$1_OS=${OPENJDK_$1_OS}
450  if test "x$OPENJDK_$1_OS" = xmacosx; then
451    HOTSPOT_$1_OS=bsd
452  fi
453  AC_SUBST(HOTSPOT_$1_OS)
454
455  HOTSPOT_$1_OS_TYPE=${OPENJDK_$1_OS_TYPE}
456  if test "x$OPENJDK_$1_OS_TYPE" = xunix; then
457    HOTSPOT_$1_OS_TYPE=posix
458  fi
459  AC_SUBST(HOTSPOT_$1_OS_TYPE)
460
461  HOTSPOT_$1_CPU=${OPENJDK_$1_CPU}
462  if test "x$OPENJDK_$1_CPU" = xx86; then
463    HOTSPOT_$1_CPU=x86_32
464  elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
465    HOTSPOT_$1_CPU=sparc
466  elif test "x$OPENJDK_$1_CPU" = xppc64; then
467    HOTSPOT_$1_CPU=ppc_64
468  elif test "x$OPENJDK_$1_CPU" = xppc64le; then
469    HOTSPOT_$1_CPU=ppc_64
470  fi
471  AC_SUBST(HOTSPOT_$1_CPU)
472
473  # This is identical with OPENJDK_*, but define anyway for consistency.
474  HOTSPOT_$1_CPU_ARCH=${OPENJDK_$1_CPU_ARCH}
475  AC_SUBST(HOTSPOT_$1_CPU_ARCH)
476
477  # Setup HOTSPOT_$1_CPU_DEFINE
478  if test "x$OPENJDK_$1_CPU" = xx86; then
479    HOTSPOT_$1_CPU_DEFINE=IA32
480  elif test "x$OPENJDK_$1_CPU" = xx86_64; then
481    HOTSPOT_$1_CPU_DEFINE=AMD64
482  elif test "x$OPENJDK_$1_CPU" = xx32; then
483    HOTSPOT_$1_CPU_DEFINE=X32
484  elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
485    HOTSPOT_$1_CPU_DEFINE=SPARC
486  elif test "x$OPENJDK_$1_CPU" = xaarch64; then
487    HOTSPOT_$1_CPU_DEFINE=AARCH64
488  elif test "x$OPENJDK_$1_CPU" = xppc64; then
489    HOTSPOT_$1_CPU_DEFINE=PPC64
490  elif test "x$OPENJDK_$1_CPU" = xppc64le; then
491    HOTSPOT_$1_CPU_DEFINE=PPC64
492
493  # The cpu defines below are for zero, we don't support them directly.
494  elif test "x$OPENJDK_$1_CPU" = xsparc; then
495    HOTSPOT_$1_CPU_DEFINE=SPARC
496  elif test "x$OPENJDK_$1_CPU" = xppc; then
497    HOTSPOT_$1_CPU_DEFINE=PPC32
498  elif test "x$OPENJDK_$1_CPU" = xs390; then
499    HOTSPOT_$1_CPU_DEFINE=S390
500  elif test "x$OPENJDK_$1_CPU" = xs390x; then
501    HOTSPOT_$1_CPU_DEFINE=S390
502  elif test "x$OPENJDK_$1_CPU" = xriscv64; then
503    HOTSPOT_$1_CPU_DEFINE=RISCV
504  elif test "x$OPENJDK_$1_CPU" != x; then
505    HOTSPOT_$1_CPU_DEFINE=$(echo $OPENJDK_$1_CPU | tr a-z A-Z)
506  fi
507  AC_SUBST(HOTSPOT_$1_CPU_DEFINE)
508
509  # For historical reasons, the OS include directories have odd names.
510  OPENJDK_$1_OS_INCLUDE_SUBDIR="$OPENJDK_TARGET_OS"
511  if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
512    OPENJDK_$1_OS_INCLUDE_SUBDIR="win32"
513  elif test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
514    OPENJDK_$1_OS_INCLUDE_SUBDIR="darwin"
515  elif test "x$OPENJDK_TARGET_OS" = "xbsd"; then
516    OPENJDK_$1_OS_INCLUDE_SUBDIR=`echo ${OPENJDK_TARGET_OS_ENV} | cut -d'.' -f2`
517  fi
518  AC_SUBST(OPENJDK_$1_OS_INCLUDE_SUBDIR)
519])
520
521AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
522[
523  if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
524    RELEASE_FILE_OS_NAME=Linux
525  fi
526  if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
527    RELEASE_FILE_OS_NAME=Windows
528  fi
529  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
530    RELEASE_FILE_OS_NAME="Darwin"
531  fi
532  if test "x$OPENJDK_TARGET_OS" = "xaix"; then
533    RELEASE_FILE_OS_NAME="AIX"
534  fi
535  RELEASE_FILE_OS_ARCH=${OPENJDK_TARGET_CPU}
536
537  AC_SUBST(RELEASE_FILE_OS_NAME)
538  AC_SUBST(RELEASE_FILE_OS_ARCH)
539])
540
541AC_DEFUN([PLATFORM_SET_MODULE_TARGET_OS_VALUES],
542[
543  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
544    OPENJDK_MODULE_TARGET_OS_NAME="macos"
545  else
546    OPENJDK_MODULE_TARGET_OS_NAME="$OPENJDK_TARGET_OS"
547  fi
548
549  if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
550    OPENJDK_MODULE_TARGET_OS_ARCH="amd64"
551  else
552    OPENJDK_MODULE_TARGET_OS_ARCH="$OPENJDK_TARGET_CPU"
553  fi
554
555  OPENJDK_MODULE_TARGET_PLATFORM="${OPENJDK_MODULE_TARGET_OS_NAME}-${OPENJDK_MODULE_TARGET_OS_ARCH}"
556  AC_SUBST(OPENJDK_MODULE_TARGET_PLATFORM)
557])
558
559#%%% Build and target systems %%%
560AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_AND_TARGET],
561[
562  # Figure out the build and target systems. # Note that in autoconf terminology, "build" is obvious, but "target"
563  # is confusing; it assumes you are cross-compiling a cross-compiler (!)  and "target" is thus the target of the
564  # product you're building. The target of this build is called "host". Since this is confusing to most people, we
565  # have not adopted that system, but use "target" as the platform we are building for. In some places though we need
566  # to use the configure naming style.
567  AC_CANONICAL_BUILD
568  AC_CANONICAL_HOST
569  AC_CANONICAL_TARGET
570
571  PLATFORM_EXTRACT_TARGET_AND_BUILD
572  PLATFORM_SETUP_TARGET_CPU_BITS
573  PLATFORM_SET_MODULE_TARGET_OS_VALUES
574  PLATFORM_SET_RELEASE_FILE_OS_VALUES
575  PLATFORM_SETUP_LEGACY_VARS
576
577  # Deprecated in JDK 15
578  UTIL_DEPRECATED_ARG_ENABLE(deprecated-ports)
579])
580
581AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_BUILD_OS_VERSION],
582[
583  ###############################################################################
584
585  # Note that this is the build platform OS version!
586
587  OS_VERSION="`uname -r | ${SED} 's!\.! !g' | ${SED} 's!-! !g'`"
588  OS_VERSION_MAJOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 1 -d ' '`"
589  OS_VERSION_MINOR="`${ECHO} ${OS_VERSION} | ${CUT} -f 2 -d ' '`"
590  OS_VERSION_MICRO="`${ECHO} ${OS_VERSION} | ${CUT} -f 3 -d ' '`"
591  AC_SUBST(OS_VERSION_MAJOR)
592  AC_SUBST(OS_VERSION_MINOR)
593  AC_SUBST(OS_VERSION_MICRO)
594])
595
596AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_BITS],
597[
598  ###############################################################################
599  #
600  # Now we check if libjvm.so will use 32 or 64 bit pointers for the C/C++ code.
601  # (The JVM can use 32 or 64 bit Java pointers but that decision
602  # is made at runtime.)
603  #
604
605  # Make compilation sanity check
606  AC_CHECK_HEADERS([stdio.h], , [
607    AC_MSG_NOTICE([Failed to compile stdio.h. This likely implies missing compile dependencies.])
608    if test "x$COMPILE_TYPE" = xreduced; then
609      HELP_MSG_MISSING_DEPENDENCY([reduced])
610      AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
611    elif test "x$COMPILE_TYPE" = xcross; then
612      AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
613    fi
614    AC_MSG_ERROR([Cannot continue.])
615  ])
616
617  AC_CHECK_SIZEOF([int *], [1111])
618
619  # AC_CHECK_SIZEOF defines 'ac_cv_sizeof_int_p' to hold the number of bytes used by an 'int*'
620  if test "x$ac_cv_sizeof_int_p" = x; then
621    # The test failed, lets stick to the assumed value.
622    AC_MSG_WARN([The number of bits in the target could not be determined, using $OPENJDK_TARGET_CPU_BITS.])
623  else
624    TESTED_TARGET_CPU_BITS=`expr 8 \* $ac_cv_sizeof_int_p`
625
626    if test "x$TESTED_TARGET_CPU_BITS" != "x$OPENJDK_TARGET_CPU_BITS"; then
627      AC_MSG_NOTICE([The tested number of bits in the target ($TESTED_TARGET_CPU_BITS) differs from the number of bits expected to be found in the target ($OPENJDK_TARGET_CPU_BITS)])
628      if test "x$COMPILE_TYPE" = xreduced; then
629        HELP_MSG_MISSING_DEPENDENCY([reduced])
630        AC_MSG_NOTICE([You are doing a reduced build. Check that you have 32-bit libraries installed. $HELP_MSG])
631      elif test "x$COMPILE_TYPE" = xcross; then
632        AC_MSG_NOTICE([You are doing a cross-compilation. Check that you have all target platform libraries installed.])
633      fi
634      AC_MSG_ERROR([Cannot continue.])
635    fi
636  fi
637
638  AC_MSG_CHECKING([for target address size])
639  AC_MSG_RESULT([$OPENJDK_TARGET_CPU_BITS bits])
640])
641
642AC_DEFUN_ONCE([PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS],
643[
644  ###############################################################################
645  #
646  # Is the target little of big endian?
647  #
648  AC_C_BIGENDIAN([ENDIAN="big"],[ENDIAN="little"],[ENDIAN="unknown"],[ENDIAN="universal_endianness"])
649
650  if test "x$ENDIAN" = xuniversal_endianness; then
651    AC_MSG_ERROR([Building with both big and little endianness is not supported])
652  fi
653  if test "x$ENDIAN" != "x$OPENJDK_TARGET_CPU_ENDIAN"; then
654    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)])
655  fi
656])
657