1#
2# Copyright (c) 2011, 2018, 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########################################################################
27# This file is responsible for detecting, verifying and setting up the
28# toolchain, i.e. the compiler, linker and related utilities. It will setup
29# proper paths to the binaries, but it will not setup any flags.
30#
31# The binaries used is determined by the toolchain type, which is the family of
32# compilers and related tools that are used.
33########################################################################
34
35
36# All valid toolchains, regardless of platform (used by help.m4)
37VALID_TOOLCHAINS_all="gcc clang solstudio xlc microsoft"
38
39# These toolchains are valid on different platforms
40VALID_TOOLCHAINS_linux="gcc clang"
41VALID_TOOLCHAINS_solaris="solstudio"
42VALID_TOOLCHAINS_macosx="gcc clang"
43VALID_TOOLCHAINS_bsd="gcc clang"
44VALID_TOOLCHAINS_aix="xlc"
45VALID_TOOLCHAINS_windows="microsoft"
46
47# Toolchain descriptions
48TOOLCHAIN_DESCRIPTION_clang="clang/LLVM"
49TOOLCHAIN_DESCRIPTION_gcc="GNU Compiler Collection"
50TOOLCHAIN_DESCRIPTION_microsoft="Microsoft Visual Studio"
51TOOLCHAIN_DESCRIPTION_solstudio="Oracle Solaris Studio"
52TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
53
54# Minimum supported versions, empty means unspecified
55TOOLCHAIN_MINIMUM_VERSION_clang="3.2"
56TOOLCHAIN_MINIMUM_VERSION_gcc="4.8"
57TOOLCHAIN_MINIMUM_VERSION_microsoft="16.00.30319.01" # VS2010
58TOOLCHAIN_MINIMUM_VERSION_solstudio="5.13"
59TOOLCHAIN_MINIMUM_VERSION_xlc=""
60
61# Minimum supported linker versions, empty means unspecified
62TOOLCHAIN_MINIMUM_LD_VERSION_gcc="2.18"
63
64# Prepare the system so that TOOLCHAIN_CHECK_COMPILER_VERSION can be called.
65# Must have CC_VERSION_NUMBER and CXX_VERSION_NUMBER.
66# $1 - optional variable prefix for compiler and version variables (BUILD_)
67# $2 - optional variable prefix for comparable variable (OPENJDK_BUILD_)
68AC_DEFUN([TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS],
69[
70  if test "x[$]$1CC_VERSION_NUMBER" != "x[$]$1CXX_VERSION_NUMBER"; then
71    AC_MSG_WARN([C and C++ compiler have different version numbers, [$]$1CC_VERSION_NUMBER vs [$]$1CXX_VERSION_NUMBER.])
72    AC_MSG_WARN([This typically indicates a broken setup, and is not supported])
73  fi
74
75  # We only check CC_VERSION_NUMBER since we assume CXX_VERSION_NUMBER is equal.
76  if [ [[ "[$]$1CC_VERSION_NUMBER" =~ (.*\.){4} ]] ]; then
77    AC_MSG_WARN([C compiler version number has more than four parts (W.X.Y.Z): [$]$1CC_VERSION_NUMBER. Comparisons might be wrong.])
78  fi
79
80  if [ [[  "[$]$1CC_VERSION_NUMBER" =~ [0-9]{6} ]] ]; then
81    AC_MSG_WARN([C compiler version number has a part larger than 99999: [$]$1CC_VERSION_NUMBER. Comparisons might be wrong.])
82  fi
83
84  $2COMPARABLE_ACTUAL_VERSION=`$AWK -F. '{ printf("%05d%05d%05d%05d\n", [$]1, [$]2, [$]3, [$]4) }' <<< "[$]$1CC_VERSION_NUMBER"`
85])
86
87# Check if the configured compiler (C and C++) is of a specific version or
88# newer. TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS must have been called before.
89#
90# Arguments:
91#   VERSION:   The version string to check against the found version
92#   IF_AT_LEAST:   block to run if the compiler is at least this version (>=)
93#   IF_OLDER_THAN:   block to run if the compiler is older than this version (<)
94#   PREFIX:   Optional variable prefix for compiler to compare version for (OPENJDK_BUILD_)
95BASIC_DEFUN_NAMED([TOOLCHAIN_CHECK_COMPILER_VERSION],
96    [*VERSION PREFIX IF_AT_LEAST IF_OLDER_THAN], [$@],
97[
98  # Need to assign to a variable since m4 is blocked from modifying parts in [].
99  REFERENCE_VERSION=ARG_VERSION
100
101  if [ [[ "$REFERENCE_VERSION" =~ (.*\.){4} ]] ]; then
102    AC_MSG_ERROR([Internal error: Cannot compare to ARG_VERSION, only four parts (W.X.Y.Z) is supported])
103  fi
104
105  if [ [[ "$REFERENCE_VERSION" =~ [0-9]{6} ]] ]; then
106    AC_MSG_ERROR([Internal error: Cannot compare to ARG_VERSION, only parts < 99999 is supported])
107  fi
108
109  # Version comparison method inspired by http://stackoverflow.com/a/24067243
110  COMPARABLE_REFERENCE_VERSION=`$AWK -F. '{ printf("%05d%05d%05d%05d\n", [$]1, [$]2, [$]3, [$]4) }' <<< "$REFERENCE_VERSION"`
111
112  if test [$]ARG_PREFIX[COMPARABLE_ACTUAL_VERSION] -ge $COMPARABLE_REFERENCE_VERSION ; then
113    :
114    ARG_IF_AT_LEAST
115  else
116    :
117    ARG_IF_OLDER_THAN
118  fi
119])
120
121# Prepare the system so that TOOLCHAIN_CHECK_COMPILER_VERSION can be called.
122# Must have LD_VERSION_NUMBER.
123# $1 - optional variable prefix for compiler and version variables (BUILD_)
124# $2 - optional variable prefix for comparable variable (OPENJDK_BUILD_)
125AC_DEFUN([TOOLCHAIN_PREPARE_FOR_LD_VERSION_COMPARISONS],
126[
127  if [ [[ "[$]$1LD_VERSION_NUMBER" =~ (.*\.){4} ]] ]; then
128    AC_MSG_WARN([Linker version number has more than four parts (W.X.Y.Z): [$]$1LD_VERSION_NUMBER. Comparisons might be wrong.])
129  fi
130
131  if [ [[  "[$]$1LD_VERSION_NUMBER" =~ [0-9]{6} ]] ]; then
132    AC_MSG_WARN([Linker version number has a part larger than 99999: [$]$1LD_VERSION_NUMBER. Comparisons might be wrong.])
133  fi
134
135  $2COMPARABLE_ACTUAL_LD_VERSION=`$AWK -F. '{ printf("%05d%05d%05d%05d\n", [$]1, [$]2, [$]3, [$]4) }' <<< "[$]$1LD_VERSION_NUMBER"`
136])
137
138# Check if the configured linker is of a specific version or
139# newer. TOOLCHAIN_PREPARE_FOR_LD_VERSION_COMPARISONS must have been called before.
140#
141# Arguments:
142#   VERSION:   The version string to check against the found version
143#   IF_AT_LEAST:   block to run if the compiler is at least this version (>=)
144#   IF_OLDER_THAN:   block to run if the compiler is older than this version (<)
145#   PREFIX:   Optional variable prefix for compiler to compare version for (OPENJDK_BUILD_)
146BASIC_DEFUN_NAMED([TOOLCHAIN_CHECK_LINKER_VERSION],
147    [*VERSION PREFIX IF_AT_LEAST IF_OLDER_THAN], [$@],
148[
149  # Need to assign to a variable since m4 is blocked from modifying parts in [].
150  REFERENCE_VERSION=ARG_VERSION
151
152  if [ [[ "$REFERENCE_VERSION" =~ (.*\.){4} ]] ]; then
153    AC_MSG_ERROR([Internal error: Cannot compare to ARG_VERSION, only four parts (W.X.Y.Z) is supported])
154  fi
155
156  if [ [[ "$REFERENCE_VERSION" =~ [0-9]{6} ]] ]; then
157    AC_MSG_ERROR([Internal error: Cannot compare to ARG_VERSION, only parts < 99999 is supported])
158  fi
159
160  # Version comparison method inspired by http://stackoverflow.com/a/24067243
161  COMPARABLE_REFERENCE_VERSION=`$AWK -F. '{ printf("%05d%05d%05d%05d\n", [$]1, [$]2, [$]3, [$]4) }' <<< "$REFERENCE_VERSION"`
162
163  if test [$]ARG_PREFIX[COMPARABLE_ACTUAL_LD_VERSION] -ge $COMPARABLE_REFERENCE_VERSION ; then
164    :
165    ARG_IF_AT_LEAST
166  else
167    :
168    ARG_IF_OLDER_THAN
169  fi
170])
171
172# Setup a number of variables describing how native output files are
173# named on this platform/toolchain.
174AC_DEFUN([TOOLCHAIN_SETUP_FILENAME_PATTERNS],
175[
176  # Define filename patterns
177  if test "x$OPENJDK_TARGET_OS" = xwindows; then
178    LIBRARY_PREFIX=
179    SHARED_LIBRARY_SUFFIX='.dll'
180    STATIC_LIBRARY_SUFFIX='.lib'
181    SHARED_LIBRARY='[$]1.dll'
182    STATIC_LIBRARY='[$]1.lib'
183    OBJ_SUFFIX='.obj'
184    EXE_SUFFIX='.exe'
185  else
186    LIBRARY_PREFIX=lib
187    SHARED_LIBRARY_SUFFIX='.so'
188    STATIC_LIBRARY_SUFFIX='.a'
189    SHARED_LIBRARY='lib[$]1.so'
190    STATIC_LIBRARY='lib[$]1.a'
191    OBJ_SUFFIX='.o'
192    EXE_SUFFIX=''
193    if test "x$OPENJDK_TARGET_OS" = xmacosx; then
194      # For full static builds, we're overloading the SHARED_LIBRARY
195      # variables in order to limit the amount of changes required.
196      # It would be better to remove SHARED and just use LIBRARY and
197      # LIBRARY_SUFFIX for libraries that can be built either
198      # shared or static and use STATIC_* for libraries that are
199      # always built statically.
200      if test "x$STATIC_BUILD" = xtrue; then
201        SHARED_LIBRARY='lib[$]1.a'
202        SHARED_LIBRARY_SUFFIX='.a'
203      else
204        SHARED_LIBRARY='lib[$]1.dylib'
205        SHARED_LIBRARY_SUFFIX='.dylib'
206      fi
207    fi
208  fi
209
210  AC_SUBST(LIBRARY_PREFIX)
211  AC_SUBST(SHARED_LIBRARY_SUFFIX)
212  AC_SUBST(STATIC_LIBRARY_SUFFIX)
213  AC_SUBST(SHARED_LIBRARY)
214  AC_SUBST(STATIC_LIBRARY)
215  AC_SUBST(OBJ_SUFFIX)
216  AC_SUBST(EXE_SUFFIX)
217])
218
219# Determine which toolchain type to use, and make sure it is valid for this
220# platform. Setup various information about the selected toolchain.
221AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
222[
223  AC_ARG_WITH(toolchain-type, [AS_HELP_STRING([--with-toolchain-type],
224      [the toolchain type (or family) to use, use '--help' to show possible values @<:@platform dependent@:>@])])
225
226  # Use indirect variable referencing
227  toolchain_var_name=VALID_TOOLCHAINS_$OPENJDK_BUILD_OS
228  VALID_TOOLCHAINS=${!toolchain_var_name}
229
230  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
231    if test -n "$XCODEBUILD"; then
232      # On Mac OS X, default toolchain to clang after Xcode 5
233      XCODE_VERSION_OUTPUT=`"$XCODEBUILD" -version 2>&1 | $HEAD -n 1`
234      $ECHO "$XCODE_VERSION_OUTPUT" | $GREP "Xcode " > /dev/null
235      if test $? -ne 0; then
236        AC_MSG_ERROR([Failed to determine Xcode version.])
237      fi
238      XCODE_MAJOR_VERSION=`$ECHO $XCODE_VERSION_OUTPUT | \
239          $SED -e 's/^Xcode \(@<:@1-9@:>@@<:@0-9.@:>@*\)/\1/' | \
240          $CUT -f 1 -d .`
241      AC_MSG_NOTICE([Xcode major version: $XCODE_MAJOR_VERSION])
242      if test $XCODE_MAJOR_VERSION -ge 5; then
243          DEFAULT_TOOLCHAIN="clang"
244      else
245          DEFAULT_TOOLCHAIN="gcc"
246      fi
247    else
248      # If Xcode is not installed, but the command line tools are
249      # then we can't run xcodebuild. On these systems we should
250      # default to clang
251      DEFAULT_TOOLCHAIN="clang"
252    fi
253  else
254    # First toolchain type in the list is the default
255    DEFAULT_TOOLCHAIN=${VALID_TOOLCHAINS%% *}
256  fi
257
258  if test "x$with_toolchain_type" = xlist; then
259    # List all toolchains
260    AC_MSG_NOTICE([The following toolchains are valid on this platform:])
261    for toolchain in $VALID_TOOLCHAINS; do
262      toolchain_var_name=TOOLCHAIN_DESCRIPTION_$toolchain
263      TOOLCHAIN_DESCRIPTION=${!toolchain_var_name}
264      $PRINTF "  %-10s  %s\n" $toolchain "$TOOLCHAIN_DESCRIPTION"
265    done
266
267    exit 0
268  elif test "x$with_toolchain_type" != x; then
269    # User override; check that it is valid
270    if test "x${VALID_TOOLCHAINS/$with_toolchain_type/}" = "x${VALID_TOOLCHAINS}"; then
271      AC_MSG_NOTICE([Toolchain type $with_toolchain_type is not valid on this platform.])
272      AC_MSG_NOTICE([Valid toolchains: $VALID_TOOLCHAINS.])
273      AC_MSG_ERROR([Cannot continue.])
274    fi
275    TOOLCHAIN_TYPE=$with_toolchain_type
276  else
277    # No flag given, use default
278    TOOLCHAIN_TYPE=$DEFAULT_TOOLCHAIN
279  fi
280  AC_SUBST(TOOLCHAIN_TYPE)
281
282  TOOLCHAIN_CC_BINARY_clang="clang"
283  TOOLCHAIN_CC_BINARY_gcc="gcc"
284  TOOLCHAIN_CC_BINARY_microsoft="cl"
285  TOOLCHAIN_CC_BINARY_solstudio="cc"
286  TOOLCHAIN_CC_BINARY_xlc="xlc_r"
287
288  TOOLCHAIN_CXX_BINARY_clang="clang++"
289  TOOLCHAIN_CXX_BINARY_gcc="g++"
290  TOOLCHAIN_CXX_BINARY_microsoft="cl"
291  TOOLCHAIN_CXX_BINARY_solstudio="CC"
292  TOOLCHAIN_CXX_BINARY_xlc="xlC_r"
293
294  # Use indirect variable referencing
295  toolchain_var_name=TOOLCHAIN_DESCRIPTION_$TOOLCHAIN_TYPE
296  TOOLCHAIN_DESCRIPTION=${!toolchain_var_name}
297  toolchain_var_name=TOOLCHAIN_MINIMUM_VERSION_$TOOLCHAIN_TYPE
298  TOOLCHAIN_MINIMUM_VERSION=${!toolchain_var_name}
299  toolchain_var_name=TOOLCHAIN_MINIMUM_LD_VERSION_$TOOLCHAIN_TYPE
300  TOOLCHAIN_MINIMUM_LD_VERSION=${!toolchain_var_name}
301  toolchain_var_name=TOOLCHAIN_CC_BINARY_$TOOLCHAIN_TYPE
302  TOOLCHAIN_CC_BINARY=${!toolchain_var_name}
303  toolchain_var_name=TOOLCHAIN_CXX_BINARY_$TOOLCHAIN_TYPE
304  TOOLCHAIN_CXX_BINARY=${!toolchain_var_name}
305
306  TOOLCHAIN_SETUP_FILENAME_PATTERNS
307
308  if test "x$TOOLCHAIN_TYPE" = "x$DEFAULT_TOOLCHAIN"; then
309    AC_MSG_NOTICE([Using default toolchain $TOOLCHAIN_TYPE ($TOOLCHAIN_DESCRIPTION)])
310  else
311    AC_MSG_NOTICE([Using user selected toolchain $TOOLCHAIN_TYPE ($TOOLCHAIN_DESCRIPTION). Default toolchain is $DEFAULT_TOOLCHAIN.])
312  fi
313])
314
315# Before we start detecting the toolchain executables, we might need some
316# special setup, e.g. additional paths etc.
317AC_DEFUN_ONCE([TOOLCHAIN_PRE_DETECTION],
318[
319  # FIXME: Is this needed?
320  AC_LANG(C++)
321
322  # Store the CFLAGS etc passed to the configure script.
323  ORG_CFLAGS="$CFLAGS"
324  ORG_CXXFLAGS="$CXXFLAGS"
325
326  # autoconf magic only relies on PATH, so update it if tools dir is specified
327  OLD_PATH="$PATH"
328
329  # On Windows, we need to detect the visual studio installation first.
330  # This will change the PATH, but we need to keep that new PATH even
331  # after toolchain detection is done, since the compiler (on x86) uses
332  # it for DLL resolution in runtime.
333  if test "x$OPENJDK_BUILD_OS" = "xwindows" \
334      && test "x$TOOLCHAIN_TYPE" = "xmicrosoft"; then
335    TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV
336    # Reset path to VS_PATH. It will include everything that was on PATH at the time we
337    # ran TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV.
338    PATH="$VS_PATH"
339    # The microsoft toolchain also requires INCLUDE and LIB to be set.
340    export INCLUDE="$VS_INCLUDE"
341    export LIB="$VS_LIB"
342  else
343    if test "x$XCODE_VERSION_OUTPUT" != x; then
344      # For Xcode, we set the Xcode version as TOOLCHAIN_VERSION
345      TOOLCHAIN_VERSION=`$ECHO $XCODE_VERSION_OUTPUT | $CUT -f 2 -d ' '`
346      TOOLCHAIN_DESCRIPTION="$TOOLCHAIN_DESCRIPTION from Xcode $TOOLCHAIN_VERSION"
347    else
348      # Currently we do not define this for other toolchains. This might change as the need arise.
349      TOOLCHAIN_VERSION=
350    fi
351  fi
352  AC_SUBST(TOOLCHAIN_VERSION)
353
354  # Finally add TOOLCHAIN_PATH at the beginning, to allow --with-tools-dir to
355  # override all other locations.
356  if test "x$TOOLCHAIN_PATH" != x; then
357    PATH=$TOOLCHAIN_PATH:$PATH
358  fi
359])
360
361# Restore path, etc
362AC_DEFUN_ONCE([TOOLCHAIN_POST_DETECTION],
363[
364  # Restore old path, except for the microsoft toolchain, which requires VS_PATH
365  # to remain in place. Otherwise the compiler will not work in some siutations
366  # in later configure checks.
367  if test "x$TOOLCHAIN_TYPE" != "xmicrosoft"; then
368    PATH="$OLD_PATH"
369  fi
370
371  # Restore the flags to the user specified values.
372  # This is necessary since AC_PROG_CC defaults CFLAGS to "-g -O2"
373  CFLAGS="$ORG_CFLAGS"
374  CXXFLAGS="$ORG_CXXFLAGS"
375])
376
377# Check if a compiler is of the toolchain type we expect, and save the version
378# information from it. If the compiler does not match the expected type,
379# this function will abort using AC_MSG_ERROR. If it matches, the version will
380# be stored in CC_VERSION_NUMBER/CXX_VERSION_NUMBER (as a dotted number), and
381# the full version string in CC_VERSION_STRING/CXX_VERSION_STRING.
382#
383# $1 = compiler to test (CC or CXX)
384# $2 = human readable name of compiler (C or C++)
385AC_DEFUN([TOOLCHAIN_EXTRACT_COMPILER_VERSION],
386[
387  COMPILER=[$]$1
388  COMPILER_NAME=$2
389
390  if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
391    # cc -V output typically looks like
392    #     cc: Sun C 5.12 Linux_i386 2011/11/16
393    # or
394    #     cc: Studio 12.5 Sun C 5.14 SunOS_sparc 2016/05/31
395    COMPILER_VERSION_OUTPUT=`$COMPILER -V 2>&1`
396    # Check that this is likely to be the Solaris Studio cc.
397    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "^.* Sun $COMPILER_NAME" > /dev/null
398    if test $? -ne 0; then
399      ALT_VERSION_OUTPUT=`$COMPILER --version 2>&1`
400      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
401      AC_MSG_NOTICE([The result from running with -V was: "$COMPILER_VERSION_OUTPUT"])
402      AC_MSG_NOTICE([The result from running with --version was: "$ALT_VERSION_OUTPUT"])
403      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
404    fi
405    # Remove usage instructions (if present), and
406    # collapse compiler output into a single line
407    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT | \
408        $SED -e 's/ *@<:@Uu@:>@sage:.*//'`
409    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
410        $SED -e "s/^.*@<:@ ,\t@:>@$COMPILER_NAME@<:@ ,\t@:>@\(@<:@1-9@:>@\.@<:@0-9@:>@@<:@0-9@:>@*\).*/\1/"`
411  elif test  "x$TOOLCHAIN_TYPE" = xxlc; then
412    # xlc -qversion output typically looks like
413    #     IBM XL C/C++ for AIX, V11.1 (5724-X13)
414    #     Version: 11.01.0000.0015
415    COMPILER_VERSION_OUTPUT=`$COMPILER -qversion 2>&1`
416    # Check that this is likely to be the IBM XL C compiler.
417    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "IBM XL C" > /dev/null
418    if test $? -ne 0; then
419      ALT_VERSION_OUTPUT=`$COMPILER --version 2>&1`
420      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
421      AC_MSG_NOTICE([The result from running with -qversion was: "$COMPILER_VERSION_OUTPUT"])
422      AC_MSG_NOTICE([The result from running with --version was: "$ALT_VERSION_OUTPUT"])
423      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
424    fi
425    # Collapse compiler output into a single line
426    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
427    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
428        $SED -e 's/^.*, V\(@<:@1-9@:>@@<:@0-9.@:>@*\).*$/\1/'`
429  elif test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
430    # There is no specific version flag, but all output starts with a version string.
431    # First line typically looks something like:
432    # Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86
433    # but the compiler name may vary depending on locale.
434    COMPILER_VERSION_OUTPUT=`$COMPILER 2>&1 | $HEAD -n 1 | $TR -d '\r'`
435    # Check that this is likely to be Microsoft CL.EXE.
436    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "Microsoft" > /dev/null
437    if test $? -ne 0; then
438      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
439      AC_MSG_NOTICE([The result from running it was: "$COMPILER_VERSION_OUTPUT"])
440      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
441    fi
442    # Collapse compiler output into a single line
443    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
444    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
445        $SED -e 's/^.*ersion.\(@<:@1-9@:>@@<:@0-9.@:>@*\) .*$/\1/'`
446  elif test  "x$TOOLCHAIN_TYPE" = xgcc; then
447    # gcc --version output typically looks like
448    #     gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
449    #     Copyright (C) 2013 Free Software Foundation, Inc.
450    #     This is free software; see the source for copying conditions.  There is NO
451    #     warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
452    COMPILER_VERSION_OUTPUT=`$COMPILER --version 2>&1`
453    # Check that this is likely to be GCC.
454    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "Free Software Foundation" > /dev/null
455    if test $? -ne 0; then
456      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
457      AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION"])
458      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
459    fi
460    # Remove Copyright and legalese from version string, and
461    # collapse into a single line
462    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT | \
463        $SED -e 's/ *Copyright .*//'`
464    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
465        $SED -e 's/^.* \(@<:@1-9@:>@<:@0-9@:>@*\.@<:@0-9.@:>@*\)@<:@^0-9.@:>@.*$/\1/'`
466  elif test  "x$TOOLCHAIN_TYPE" = xclang; then
467    # clang --version output typically looks like
468    #    Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
469    #    clang version 3.3 (tags/RELEASE_33/final)
470    # or
471    #    Debian clang version 3.2-7ubuntu1 (tags/RELEASE_32/final) (based on LLVM 3.2)
472    #    Target: x86_64-pc-linux-gnu
473    #    Thread model: posix
474    COMPILER_VERSION_OUTPUT=`$COMPILER --version 2>&1`
475    # Check that this is likely to be clang
476    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "clang" > /dev/null
477    if test $? -ne 0; then
478      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
479      AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION_OUTPUT"])
480      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
481    fi
482    # Collapse compiler output into a single line
483    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
484    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
485        $SED -e 's/^.* version \(@<:@1-9@:>@@<:@0-9.@:>@*\).*$/\1/'`
486  else
487      AC_MSG_ERROR([Unknown toolchain type $TOOLCHAIN_TYPE.])
488  fi
489  # This sets CC_VERSION_NUMBER or CXX_VERSION_NUMBER. (This comment is a grep marker)
490  $1_VERSION_NUMBER="$COMPILER_VERSION_NUMBER"
491  # This sets CC_VERSION_STRING or CXX_VERSION_STRING. (This comment is a grep marker)
492  $1_VERSION_STRING="$COMPILER_VERSION_STRING"
493
494  AC_MSG_NOTICE([Using $TOOLCHAIN_TYPE $COMPILER_NAME compiler version $COMPILER_VERSION_NUMBER @<:@$COMPILER_VERSION_STRING@:>@])
495])
496
497# Try to locate the given C or C++ compiler in the path, or otherwise.
498#
499# $1 = compiler to test (CC or CXX)
500# $2 = human readable name of compiler (C or C++)
501# $3 = compiler name to search for
502AC_DEFUN([TOOLCHAIN_FIND_COMPILER],
503[
504  COMPILER_NAME=$2
505  SEARCH_LIST="$3"
506
507  if test "x[$]$1" != x; then
508    # User has supplied compiler name already, always let that override.
509    AC_MSG_NOTICE([Will use user supplied compiler $1=[$]$1])
510    if test "x`basename [$]$1`" = "x[$]$1"; then
511      # A command without a complete path is provided, search $PATH.
512
513      AC_PATH_PROGS(POTENTIAL_$1, [$]$1)
514      if test "x$POTENTIAL_$1" != x; then
515        $1=$POTENTIAL_$1
516      else
517        AC_MSG_ERROR([User supplied compiler $1=[$]$1 could not be found])
518      fi
519    else
520      # Otherwise it might already be a complete path
521      if test ! -x "[$]$1"; then
522        AC_MSG_ERROR([User supplied compiler $1=[$]$1 does not exist])
523      fi
524    fi
525  else
526    # No user supplied value. Locate compiler ourselves.
527
528    # If we are cross compiling, assume cross compilation tools follows the
529    # cross compilation standard where they are prefixed with the autoconf
530    # standard name for the target. For example the binary
531    # i686-sun-solaris2.10-gcc will cross compile for i686-sun-solaris2.10.
532    # If we are not cross compiling, then the default compiler name will be
533    # used.
534
535    $1=
536    # If TOOLCHAIN_PATH is set, check for all compiler names in there first
537    # before checking the rest of the PATH.
538    # FIXME: Now that we prefix the TOOLS_DIR to the PATH in the PRE_DETECTION
539    # step, this should not be necessary.
540    if test -n "$TOOLCHAIN_PATH"; then
541      PATH_save="$PATH"
542      PATH="$TOOLCHAIN_PATH"
543      AC_PATH_TOOL(TOOLCHAIN_PATH_$1, $SEARCH_LIST)
544      $1=$TOOLCHAIN_PATH_$1
545      PATH="$PATH_save"
546    fi
547
548    # AC_PATH_TOOL can't be run multiple times with the same variable,
549    # so create a new name for this run.
550    if test "x[$]$1" = x; then
551      AC_PATH_TOOL(POTENTIAL_$1, $SEARCH_LIST)
552      $1=$POTENTIAL_$1
553    fi
554
555    if test "x[$]$1" = x; then
556      HELP_MSG_MISSING_DEPENDENCY([devkit])
557      AC_MSG_ERROR([Could not find a $COMPILER_NAME compiler. $HELP_MSG])
558    fi
559  fi
560
561  # Now we have a compiler binary in $1. Make sure it's okay.
562  BASIC_FIXUP_EXECUTABLE($1)
563  TEST_COMPILER="[$]$1"
564
565  AC_MSG_CHECKING([resolved symbolic links for $1])
566  SYMLINK_ORIGINAL="$TEST_COMPILER"
567  BASIC_REMOVE_SYMBOLIC_LINKS(SYMLINK_ORIGINAL)
568  if test "x$TEST_COMPILER" = "x$SYMLINK_ORIGINAL"; then
569    AC_MSG_RESULT([no symlink])
570  else
571    AC_MSG_RESULT([$SYMLINK_ORIGINAL])
572
573    # We can't handle ccache by gcc wrappers, since we need to know if we're
574    # using ccache. Instead ccache usage must be controlled by a configure option.
575    COMPILER_BASENAME=`$BASENAME "$SYMLINK_ORIGINAL"`
576    if test "x$COMPILER_BASENAME" = "xccache"; then
577      AC_MSG_NOTICE([Please use --enable-ccache instead of providing a wrapped compiler.])
578      AC_MSG_ERROR([$TEST_COMPILER is a symbolic link to ccache. This is not supported.])
579    fi
580  fi
581
582  TOOLCHAIN_EXTRACT_COMPILER_VERSION([$1], [$COMPILER_NAME])
583])
584
585# Retrieve the linker version number and store it in LD_VERSION_NUMBER
586# (as a dotted number), and
587# the full version string in LD_VERSION_STRING.
588#
589# $1 = linker to test (LD or BUILD_LD)
590# $2 = human readable name of linker (Linker or BuildLinker)
591AC_DEFUN([TOOLCHAIN_EXTRACT_LD_VERSION],
592[
593  LINKER=[$]$1
594  LINKER_NAME="$2"
595
596  if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
597    # cc -Wl,-V output typically looks like
598    #   ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.2329
599
600    # solstudio cc requires us to have an existing file to pass as argument,
601    # but it need not be a syntactically correct C file, so just use
602    # ourself. :) The intermediate 'cat' is needed to stop ld from leaving
603    # a lingering a.out (!).
604    LINKER_VERSION_STRING=`$LD -Wl,-V $TOPDIR/configure 2>&1 | $CAT | $HEAD -n 1 | $SED -e 's/ld: //'`
605    # Extract version number
606    [ LINKER_VERSION_NUMBER=`$ECHO $LINKER_VERSION_STRING | \
607        $SED -e 's/.* \([0-9][0-9]*\.[0-9][0-9]*\)-\([0-9][0-9]*\.[0-9][0-9]*\)/\1.\2/'` ]
608  elif test  "x$TOOLCHAIN_TYPE" = xxlc; then
609    LINKER_VERSION_STRING="Unknown"
610    LINKER_VERSION_NUMBER="0.0"
611  elif test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
612    # There is no specific version flag, but all output starts with a version string.
613    # First line typically looks something like:
614    #   Microsoft (R) Incremental Linker Version 12.00.31101.0
615    LINKER_VERSION_STRING=`$LD 2>&1 | $HEAD -n 1 | $TR -d '\r'`
616    # Extract version number
617    [ LINKER_VERSION_NUMBER=`$ECHO $LINKER_VERSION_STRING | \
618        $SED -e 's/.* \([0-9][0-9]*\(\.[0-9][0-9]*\)*\).*/\1/'` ]
619  elif test  "x$TOOLCHAIN_TYPE" = xgcc; then
620    # gcc -Wl,-version output typically looks like
621    #   GNU ld (GNU Binutils for Ubuntu) 2.26.1
622    #   Copyright (C) 2015 Free Software Foundation, Inc.
623    #   This program is free software; [...]
624    LINKER_VERSION_STRING=`$LD -Wl,-version 2>&1 | $HEAD -n 1`
625    # Extract version number
626    [ LINKER_VERSION_NUMBER=`$ECHO $LINKER_VERSION_STRING | \
627        $SED -e 's/.* \([0-9][0-9]*\(\.[0-9][0-9]*\)*\).*/\1/'` ]
628  elif test  "x$TOOLCHAIN_TYPE" = xclang; then
629    # clang -Wl,-v output typically looks like
630    #   @(#)PROGRAM:ld  PROJECT:ld64-305
631    #   configured to support archs: armv6 armv7 armv7s arm64 i386 x86_64 x86_64h armv6m armv7k armv7m armv7em (tvOS)
632    #   Library search paths: [...]
633    # or
634    #   GNU ld (GNU Binutils for Ubuntu) 2.26.1
635
636    LINKER_VERSION_STRING=`$LD -Wl,-v 2>&1 | $HEAD -n 1`
637    # Check if we're using the GNU ld
638    $ECHO "$LINKER_VERSION_STRING" | $GREP "GNU" > /dev/null
639    if test $? -eq 0; then
640      # Extract version number
641      [ LINKER_VERSION_NUMBER=`$ECHO $LINKER_VERSION_STRING | \
642          $SED -e 's/.* \([0-9][0-9]*\(\.[0-9][0-9]*\)*\).*/\1/'` ]
643    else
644      # Extract version number
645      [ LINKER_VERSION_NUMBER=`$ECHO $LINKER_VERSION_STRING | \
646          $SED -e 's/.*-\([0-9][0-9]*\)/\1/'` ]
647    fi
648  fi
649
650  $1_VERSION_NUMBER="$LINKER_VERSION_NUMBER"
651  $1_VERSION_STRING="$LINKER_VERSION_STRING"
652
653  AC_MSG_NOTICE([Using $TOOLCHAIN_TYPE $LINKER_NAME version $LINKER_VERSION_NUMBER @<:@$LINKER_VERSION_STRING@:>@])
654])
655
656# Detect the core components of the toolchain, i.e. the compilers (CC and CXX),
657# preprocessor (CPP and CXXCPP), the linker (LD), the assembler (AS) and the
658# archiver (AR). Verify that the compilers are correct according to the
659# toolchain type.
660AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
661[
662  #
663  # Setup the compilers (CC and CXX)
664  #
665  TOOLCHAIN_FIND_COMPILER([CC], [C], $TOOLCHAIN_CC_BINARY)
666  # Now that we have resolved CC ourself, let autoconf have its go at it
667  AC_PROG_CC([$CC])
668
669  TOOLCHAIN_FIND_COMPILER([CXX], [C++], $TOOLCHAIN_CXX_BINARY)
670  # Now that we have resolved CXX ourself, let autoconf have its go at it
671  AC_PROG_CXX([$CXX])
672
673  # This is the compiler version number on the form X.Y[.Z]
674  AC_SUBST(CC_VERSION_NUMBER)
675  AC_SUBST(CXX_VERSION_NUMBER)
676
677  TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS
678
679  if test "x$TOOLCHAIN_MINIMUM_VERSION" != x; then
680    TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: $TOOLCHAIN_MINIMUM_VERSION,
681        IF_OLDER_THAN: [
682          AC_MSG_WARN([You are using $TOOLCHAIN_TYPE older than $TOOLCHAIN_MINIMUM_VERSION. This is not a supported configuration.])
683        ]
684    )
685  fi
686
687  #
688  # Setup the preprocessor (CPP and CXXCPP)
689  #
690  AC_PROG_CPP
691  BASIC_FIXUP_EXECUTABLE(CPP)
692  AC_PROG_CXXCPP
693  BASIC_FIXUP_EXECUTABLE(CXXCPP)
694
695  #
696  # Setup the linker (LD)
697  #
698  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
699    # In the Microsoft toolchain we have a separate LD command "link".
700    # Make sure we reject /usr/bin/link (as determined in CYGWIN_LINK), which is
701    # a cygwin program for something completely different.
702    AC_CHECK_PROG([LD], [link],[link],,, [$CYGWIN_LINK])
703    BASIC_FIXUP_EXECUTABLE(LD)
704    # Verify that we indeed succeeded with this trick.
705    AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
706    "$LD" --version > /dev/null
707    if test $? -eq 0 ; then
708      AC_MSG_RESULT([no])
709      AC_MSG_ERROR([This is the Cygwin link tool. Please check your PATH and rerun configure.])
710    else
711      AC_MSG_RESULT([yes])
712    fi
713    LDCXX="$LD"
714    # jaotc being a windows program expects the linker to be supplied with exe suffix.
715    LD_JAOTC="$LD$EXE_SUFFIX"
716  else
717    # All other toolchains use the compiler to link.
718    LD="$CC"
719    LDCXX="$CXX"
720    # jaotc expects 'ld' as the linker rather than the compiler.
721    BASIC_CHECK_TOOLS([LD_JAOTC], ld)
722    BASIC_FIXUP_EXECUTABLE(LD_JAOTC)
723  fi
724  AC_SUBST(LD)
725  AC_SUBST(LD_JAOTC)
726  # FIXME: it should be CXXLD, according to standard (cf CXXCPP)
727  AC_SUBST(LDCXX)
728
729  TOOLCHAIN_EXTRACT_LD_VERSION([LD], [linker])
730  TOOLCHAIN_PREPARE_FOR_LD_VERSION_COMPARISONS
731
732  if test "x$TOOLCHAIN_MINIMUM_LD_VERSION" != x; then
733    TOOLCHAIN_CHECK_LINKER_VERSION(VERSION: $TOOLCHAIN_MINIMUM_LD_VERSION,
734        IF_OLDER_THAN: [
735          AC_MSG_WARN([You are using a linker older than $TOOLCHAIN_MINIMUM_LD_VERSION. This is not a supported configuration.])
736        ]
737    )
738  fi
739
740  #
741  # Setup the assembler (AS)
742  #
743  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
744    BASIC_PATH_PROGS(AS, as)
745    BASIC_FIXUP_EXECUTABLE(AS)
746    if test "x$AS" = x; then
747      AC_MSG_ERROR([Solaris assembler (as) is required. Please install via "pkg install pkg:/developer/assembler".])
748    fi
749  else
750    # FIXME: is this correct for microsoft?
751    AS="$CC -c"
752  fi
753  AC_SUBST(AS)
754
755  #
756  # Setup the archiver (AR)
757  #
758  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
759    # The corresponding ar tool is lib.exe (used to create static libraries)
760    AC_CHECK_PROG([AR], [lib],[lib],,,)
761  elif test "x$TOOLCHAIN_TYPE" = xgcc; then
762    BASIC_CHECK_TOOLS(AR, ar gcc-ar)
763  else
764    BASIC_CHECK_TOOLS(AR, ar)
765  fi
766  BASIC_FIXUP_EXECUTABLE(AR)
767])
768
769# Setup additional tools that is considered a part of the toolchain, but not the
770# core part. Many of these are highly platform-specific and do not exist,
771# and/or are not needed on all platforms.
772AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_EXTRA],
773[
774  if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
775    BASIC_PATH_PROGS(LIPO, lipo)
776    BASIC_FIXUP_EXECUTABLE(LIPO)
777    BASIC_REQUIRE_PROGS(OTOOL, otool)
778    BASIC_FIXUP_EXECUTABLE(OTOOL)
779    BASIC_REQUIRE_PROGS(INSTALL_NAME_TOOL, install_name_tool)
780    BASIC_FIXUP_EXECUTABLE(INSTALL_NAME_TOOL)
781  fi
782
783  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
784    AC_CHECK_PROG([MT], [mt], [mt],,, [/usr/bin/mt])
785    BASIC_FIXUP_EXECUTABLE(MT)
786    # Setup the resource compiler (RC)
787    AC_CHECK_PROG([RC], [rc], [rc],,, [/usr/bin/rc])
788    BASIC_FIXUP_EXECUTABLE(RC)
789    AC_CHECK_PROG([DUMPBIN], [dumpbin], [dumpbin],,,)
790    BASIC_FIXUP_EXECUTABLE(DUMPBIN)
791    # We need to check for 'msbuild.exe' because at the place where we expect to
792    # find 'msbuild.exe' there's also a directory called 'msbuild' and configure
793    # won't find the 'msbuild.exe' executable in that case (and the
794    # 'ac_executable_extensions' is unusable due to performance reasons).
795    # Notice that we intentionally don't fix up the path to MSBUILD because we
796    # will call it in a DOS shell during freetype detection on Windows (see
797    # 'LIB_SETUP_FREETYPE' in "libraries.m4"
798    AC_CHECK_PROG([MSBUILD], [msbuild.exe], [msbuild.exe],,,)
799  fi
800
801  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
802    BASIC_PATH_PROGS(STRIP, strip)
803    BASIC_FIXUP_EXECUTABLE(STRIP)
804    BASIC_PATH_PROGS(NM, nm)
805    BASIC_FIXUP_EXECUTABLE(NM)
806    BASIC_PATH_PROGS(GNM, gnm)
807    BASIC_FIXUP_EXECUTABLE(GNM)
808  elif test "x$OPENJDK_TARGET_OS" != xwindows; then
809    # FIXME: we should unify this with the solaris case above.
810    BASIC_CHECK_TOOLS(STRIP, strip)
811    BASIC_FIXUP_EXECUTABLE(STRIP)
812    if test "x$TOOLCHAIN_TYPE" = xgcc; then
813      BASIC_CHECK_TOOLS(NM, nm gcc-nm)
814    else
815      BASIC_CHECK_TOOLS(NM, nm)
816    fi
817    BASIC_FIXUP_EXECUTABLE(NM)
818    GNM="$NM"
819    AC_SUBST(GNM)
820  fi
821
822  # objcopy is used for moving debug symbols to separate files when
823  # full debug symbols are enabled.
824  if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xlinux || test "x$OPENJDK_TARGET_OS" = xbsd; then
825    BASIC_CHECK_TOOLS(OBJCOPY, [gobjcopy objcopy])
826    # Only call fixup if objcopy was found.
827    if test -n "$OBJCOPY"; then
828      BASIC_FIXUP_EXECUTABLE(OBJCOPY)
829      if test "x$OPENJDK_BUILD_OS" = xsolaris; then
830        # objcopy prior to 2.21.1 on solaris is broken and is not usable.
831        # Rewrite objcopy version output to VALID_VERSION or BAD_VERSION.
832        # - version number is last blank separate word on first line
833        # - version number formats that have been seen:
834        #   - <major>.<minor>
835        #   - <major>.<minor>.<micro>
836        OBJCOPY_VERSION=`$OBJCOPY --version | $HEAD -n 1`
837        # The outer [ ] is to prevent m4 from eating the [] in the sed expression.
838        [ OBJCOPY_VERSION_CHECK=`$ECHO $OBJCOPY_VERSION | $SED -n \
839              -e 's/.* //' \
840              -e '/^[01]\./b bad' \
841              -e '/^2\./{' \
842              -e '  s/^2\.//' \
843              -e '  /^[0-9]$/b bad' \
844              -e '  /^[0-9]\./b bad' \
845              -e '  /^1[0-9]$/b bad' \
846              -e '  /^1[0-9]\./b bad' \
847              -e '  /^20\./b bad' \
848              -e '  /^21\.0$/b bad' \
849              -e '  /^21\.0\./b bad' \
850              -e '}' \
851              -e ':good' \
852              -e 's/.*/VALID_VERSION/p' \
853              -e 'q' \
854              -e ':bad' \
855              -e 's/.*/BAD_VERSION/p' \
856              -e 'q'` ]
857        if test "x$OBJCOPY_VERSION_CHECK" = xBAD_VERSION; then
858          OBJCOPY=
859          AC_MSG_WARN([Ignoring found objcopy since it is broken (prior to 2.21.1). No debug symbols will be generated.])
860          AC_MSG_NOTICE([objcopy reports version $OBJCOPY_VERSION])
861          AC_MSG_NOTICE([Note: patch 149063-01 or newer contains the correct Solaris 10 SPARC version])
862          AC_MSG_NOTICE([Note: patch 149064-01 or newer contains the correct Solaris 10 X86 version])
863          AC_MSG_NOTICE([Note: Solaris 11 Update 1 contains the correct version])
864        fi
865      fi
866    fi
867  fi
868
869  BASIC_CHECK_TOOLS(OBJDUMP, [gobjdump objdump])
870  if test "x$OBJDUMP" != x; then
871    # Only used for compare.sh; we can live without it. BASIC_FIXUP_EXECUTABLE
872    # bails if argument is missing.
873    BASIC_FIXUP_EXECUTABLE(OBJDUMP)
874  fi
875
876  case $TOOLCHAIN_TYPE in
877    gcc|clang|solstudio)
878      BASIC_CHECK_TOOLS(CXXFILT, [c++filt])
879      BASIC_CHECK_NONEMPTY(CXXFILT)
880      BASIC_FIXUP_EXECUTABLE(CXXFILT)
881      ;;
882  esac
883])
884
885# Setup the build tools (i.e, the compiler and linker used to build programs
886# that should be run on the build platform, not the target platform, as a build
887# helper). Since the non-cross-compile case uses the normal, target compilers
888# for this, we can only do this after these have been setup.
889AC_DEFUN_ONCE([TOOLCHAIN_SETUP_BUILD_COMPILERS],
890[
891  if test "x$COMPILE_TYPE" = "xcross"; then
892    # Now we need to find a C/C++ compiler that can build executables for the
893    # build platform. We can't use the AC_PROG_CC macro, since it can only be
894    # used once. Also, we need to do this without adding a tools dir to the
895    # path, otherwise we might pick up cross-compilers which don't use standard
896    # naming.
897
898    OLDPATH="$PATH"
899
900    AC_ARG_WITH(build-devkit, [AS_HELP_STRING([--with-build-devkit],
901        [Devkit to use for the build platform toolchain])])
902    if test "x$with_build_devkit" = "xyes"; then
903      AC_MSG_ERROR([--with-build-devkit must have a value])
904    elif test -n "$with_build_devkit"; then
905      if test ! -d "$with_build_devkit"; then
906        AC_MSG_ERROR([--with-build-devkit points to non existing dir: $with_build_devkit])
907      else
908        BASIC_FIXUP_PATH([with_build_devkit])
909        BUILD_DEVKIT_ROOT="$with_build_devkit"
910        # Check for a meta data info file in the root of the devkit
911        if test -f "$BUILD_DEVKIT_ROOT/devkit.info"; then
912          # Process devkit.info so that existing devkit variables are not
913          # modified by this
914          $SED -e "s/^DEVKIT_/BUILD_DEVKIT_/g" \
915              -e "s/\$DEVKIT_ROOT/\$BUILD_DEVKIT_ROOT/g" \
916              -e "s/\$host/\$build/g" \
917              $BUILD_DEVKIT_ROOT/devkit.info \
918              > $CONFIGURESUPPORT_OUTPUTDIR/build-devkit.info
919          . $CONFIGURESUPPORT_OUTPUTDIR/build-devkit.info
920          # This potentially sets the following:
921          # A descriptive name of the devkit
922          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_NAME])
923          # Corresponds to --with-extra-path
924          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_EXTRA_PATH])
925          # Corresponds to --with-toolchain-path
926          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_TOOLCHAIN_PATH])
927          # Corresponds to --with-sysroot
928          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_SYSROOT])
929          # Skip the Window specific parts
930        fi
931
932        AC_MSG_CHECKING([for build platform devkit])
933        if test "x$BUILD_DEVKIT_NAME" != x; then
934          AC_MSG_RESULT([$BUILD_DEVKIT_NAME in $BUILD_DEVKIT_ROOT])
935        else
936          AC_MSG_RESULT([$BUILD_DEVKIT_ROOT])
937        fi
938
939        BUILD_SYSROOT="$BUILD_DEVKIT_SYSROOT"
940
941         # Fallback default of just /bin if DEVKIT_PATH is not defined
942        if test "x$BUILD_DEVKIT_TOOLCHAIN_PATH" = x; then
943          BUILD_DEVKIT_TOOLCHAIN_PATH="$BUILD_DEVKIT_ROOT/bin"
944        fi
945        PATH="$BUILD_DEVKIT_TOOLCHAIN_PATH:$BUILD_DEVKIT_EXTRA_PATH"
946      fi
947    fi
948
949    # FIXME: we should list the discovered compilers as an exclude pattern!
950    # If we do that, we can do this detection before POST_DETECTION, and still
951    # find the build compilers in the tools dir, if needed.
952    if test "x$OPENJDK_BUILD_OS" = xmacosx; then
953      BASIC_REQUIRE_PROGS(BUILD_CC, [clang cl cc gcc])
954      BASIC_REQUIRE_PROGS(BUILD_CXX, [clang++ cl CC g++])
955    else
956      BASIC_REQUIRE_PROGS(BUILD_CC, [cl cc gcc])
957      BASIC_REQUIRE_PROGS(BUILD_CXX, [cl CC g++])
958    fi
959    BASIC_FIXUP_EXECUTABLE(BUILD_CC)
960    BASIC_FIXUP_EXECUTABLE(BUILD_CXX)
961    BASIC_PATH_PROGS(BUILD_NM, nm gcc-nm)
962    BASIC_FIXUP_EXECUTABLE(BUILD_NM)
963    BASIC_PATH_PROGS(BUILD_AR, ar gcc-ar)
964    BASIC_FIXUP_EXECUTABLE(BUILD_AR)
965    BASIC_PATH_PROGS(BUILD_OBJCOPY, objcopy)
966    BASIC_FIXUP_EXECUTABLE(BUILD_OBJCOPY)
967    BASIC_PATH_PROGS(BUILD_STRIP, strip)
968    BASIC_FIXUP_EXECUTABLE(BUILD_STRIP)
969    # Assume the C compiler is the assembler
970    BUILD_AS="$BUILD_CC -c"
971    # Just like for the target compiler, use the compiler as linker
972    BUILD_LD="$BUILD_CC"
973    BUILD_LDCXX="$BUILD_CXX"
974
975    PATH="$OLDPATH"
976
977    TOOLCHAIN_EXTRACT_COMPILER_VERSION(BUILD_CC, [BuildC])
978    TOOLCHAIN_EXTRACT_COMPILER_VERSION(BUILD_CXX, [BuildC++])
979    TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS([BUILD_], [OPENJDK_BUILD_])
980    TOOLCHAIN_EXTRACT_LD_VERSION(BUILD_LD, [build linker])
981    TOOLCHAIN_PREPARE_FOR_LD_VERSION_COMPARISONS([BUILD_], [OPENJDK_BUILD_])
982  else
983    # If we are not cross compiling, use the normal target compilers for
984    # building the build platform executables.
985    BUILD_CC="$CC"
986    BUILD_CXX="$CXX"
987    BUILD_LD="$LD"
988    BUILD_LDCXX="$LDCXX"
989    BUILD_NM="$NM"
990    BUILD_AS="$AS"
991    BUILD_OBJCOPY="$OBJCOPY"
992    BUILD_STRIP="$STRIP"
993    BUILD_AR="$AR"
994
995    TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS([], [OPENJDK_BUILD_])
996    TOOLCHAIN_PREPARE_FOR_LD_VERSION_COMPARISONS([BUILD_], [OPENJDK_BUILD_])
997  fi
998
999  AC_SUBST(BUILD_CC)
1000  AC_SUBST(BUILD_CXX)
1001  AC_SUBST(BUILD_LD)
1002  AC_SUBST(BUILD_LDCXX)
1003  AC_SUBST(BUILD_NM)
1004  AC_SUBST(BUILD_AS)
1005  AC_SUBST(BUILD_AR)
1006])
1007
1008# Do some additional checks on the detected tools.
1009AC_DEFUN_ONCE([TOOLCHAIN_MISC_CHECKS],
1010[
1011  # The package path is used only on macosx?
1012  # FIXME: clean this up, and/or move it elsewhere.
1013  PACKAGE_PATH=/opt/local
1014  AC_SUBST(PACKAGE_PATH)
1015
1016  # Check for extra potential brokenness.
1017  if test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
1018    # On Windows, double-check that we got the right compiler.
1019    CC_VERSION_OUTPUT=`$CC 2>&1 | $HEAD -n 1 | $TR -d '\r'`
1020    COMPILER_CPU_TEST=`$ECHO $CC_VERSION_OUTPUT | $SED -n "s/^.* \(.*\)$/\1/p"`
1021    if test "x$OPENJDK_TARGET_CPU" = "xx86"; then
1022      if test "x$COMPILER_CPU_TEST" != "x80x86" -a "x$COMPILER_CPU_TEST" != "xx86"; then
1023        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "80x86" or "x86".])
1024      fi
1025    elif test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
1026      if test "x$COMPILER_CPU_TEST" != "xx64"; then
1027        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "x64".])
1028      fi
1029    fi
1030  fi
1031
1032  if test "x$TOOLCHAIN_TYPE" = xgcc; then
1033    # If this is a --hash-style=gnu system, use --hash-style=both, why?
1034    HAS_GNU_HASH=`$CC -dumpspecs 2>/dev/null | $GREP 'hash-style=gnu'`
1035    # This is later checked when setting flags.
1036  fi
1037
1038  if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
1039    # Check if linker has -z noexecstack.
1040    HAS_NOEXECSTACK=`$CC -Wl,--help 2>/dev/null | $GREP 'z noexecstack'`
1041    # This is later checked when setting flags.
1042  fi
1043
1044  # Setup hotspot lecagy names for toolchains
1045  HOTSPOT_TOOLCHAIN_TYPE=$TOOLCHAIN_TYPE
1046  if test "x$TOOLCHAIN_TYPE" = xclang; then
1047    HOTSPOT_TOOLCHAIN_TYPE=gcc
1048  elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
1049    HOTSPOT_TOOLCHAIN_TYPE=sparcWorks
1050  elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
1051    HOTSPOT_TOOLCHAIN_TYPE=visCPP
1052  fi
1053  AC_SUBST(HOTSPOT_TOOLCHAIN_TYPE)
1054])
1055
1056# Setup the JTReg Regression Test Harness.
1057AC_DEFUN_ONCE([TOOLCHAIN_SETUP_JTREG],
1058[
1059  AC_ARG_WITH(jtreg, [AS_HELP_STRING([--with-jtreg],
1060      [Regression Test Harness @<:@probed@:>@])])
1061
1062  if test "x$with_jtreg" = xno; then
1063    # jtreg disabled
1064    AC_MSG_CHECKING([for jtreg test harness])
1065    AC_MSG_RESULT([no, disabled])
1066  elif test "x$with_jtreg" != xyes && test "x$with_jtreg" != x; then
1067    # An explicit path is specified, use it.
1068    JT_HOME="$with_jtreg"
1069    BASIC_FIXUP_PATH([JT_HOME])
1070    if test ! -d "$JT_HOME"; then
1071      AC_MSG_ERROR([jtreg home directory from --with-jtreg=$with_jtreg does not exist])
1072    fi
1073
1074    if test ! -e "$JT_HOME/lib/jtreg.jar"; then
1075      AC_MSG_ERROR([jtreg home directory from --with-jtreg=$with_jtreg is not a valid jtreg home])
1076    fi
1077
1078    JTREGEXE="$JT_HOME/bin/jtreg"
1079    if test ! -x "$JTREGEXE"; then
1080      AC_MSG_ERROR([jtreg home directory from --with-jtreg=$with_jtreg does not contain valid jtreg executable])
1081    fi
1082
1083    AC_MSG_CHECKING([for jtreg test harness])
1084    AC_MSG_RESULT([$JT_HOME])
1085  else
1086    # Try to locate jtreg
1087    if test "x$JT_HOME" != x; then
1088      # JT_HOME set in environment, use it
1089      if test ! -d "$JT_HOME"; then
1090        AC_MSG_WARN([Ignoring JT_HOME pointing to invalid directory: $JT_HOME])
1091        JT_HOME=
1092      else
1093        if test ! -e "$JT_HOME/lib/jtreg.jar"; then
1094          AC_MSG_WARN([Ignoring JT_HOME which is not a valid jtreg home: $JT_HOME])
1095          JT_HOME=
1096        elif test ! -x "$JT_HOME/bin/jtreg"; then
1097          AC_MSG_WARN([Ignoring JT_HOME which does not contain valid jtreg executable: $JT_HOME])
1098          JT_HOME=
1099        else
1100          JTREGEXE="$JT_HOME/bin/jtreg"
1101          AC_MSG_NOTICE([Located jtreg using JT_HOME from environment])
1102        fi
1103      fi
1104    fi
1105
1106    if test "x$JT_HOME" = x; then
1107      # JT_HOME is not set in environment, or was deemed invalid.
1108      # Try to find jtreg on path
1109      BASIC_PATH_PROGS(JTREGEXE, jtreg)
1110      if test "x$JTREGEXE" != x; then
1111        # That's good, now try to derive JT_HOME
1112        JT_HOME=`(cd $($DIRNAME $JTREGEXE)/.. && pwd)`
1113        if test ! -e "$JT_HOME/lib/jtreg.jar"; then
1114          AC_MSG_WARN([Ignoring jtreg from path since a valid jtreg home cannot be found])
1115          JT_HOME=
1116          JTREGEXE=
1117        else
1118          AC_MSG_NOTICE([Located jtreg using jtreg executable in path])
1119        fi
1120      fi
1121    fi
1122
1123    AC_MSG_CHECKING([for jtreg test harness])
1124    if test "x$JT_HOME" != x; then
1125      AC_MSG_RESULT([$JT_HOME])
1126    else
1127      AC_MSG_RESULT([no, not found])
1128
1129      if test "x$with_jtreg" = xyes; then
1130        AC_MSG_ERROR([--with-jtreg was specified, but no jtreg found.])
1131      fi
1132    fi
1133  fi
1134
1135  BASIC_FIXUP_EXECUTABLE(JTREGEXE)
1136  BASIC_FIXUP_PATH(JT_HOME)
1137  AC_SUBST(JT_HOME)
1138  AC_SUBST(JTREGEXE)
1139])
1140
1141# Setup the JIB dependency resolver
1142AC_DEFUN_ONCE([TOOLCHAIN_SETUP_JIB],
1143[
1144  AC_ARG_WITH(jib, [AS_HELP_STRING([--with-jib],
1145      [Jib dependency management tool @<:@not used@:>@])])
1146
1147  if test "x$with_jib" = xno || test "x$with_jib" = x; then
1148    # jib disabled
1149    AC_MSG_CHECKING([for jib])
1150    AC_MSG_RESULT(no)
1151  elif test "x$with_jib" = xyes; then
1152    AC_MSG_ERROR([Must supply a value to --with-jib])
1153  else
1154    JIB_HOME="${with_jib}"
1155    AC_MSG_CHECKING([for jib])
1156    AC_MSG_RESULT(${JIB_HOME})
1157    if test ! -d "${JIB_HOME}"; then
1158      AC_MSG_ERROR([--with-jib must be a directory])
1159    fi
1160    JIB_JAR=$(ls ${JIB_HOME}/lib/jib-*.jar)
1161    if test ! -f "${JIB_JAR}"; then
1162      AC_MSG_ERROR([Could not find jib jar file in ${JIB_HOME}])
1163    fi
1164  fi
1165
1166  AC_SUBST(JIB_HOME)
1167])
1168