toolchain.m4 revision 1961:f900d5afd9c8
1#
2# Copyright (c) 2011, 2016, 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_aix="xlc"
44VALID_TOOLCHAINS_windows="microsoft"
45
46# Toolchain descriptions
47TOOLCHAIN_DESCRIPTION_clang="clang/LLVM"
48TOOLCHAIN_DESCRIPTION_gcc="GNU Compiler Collection"
49TOOLCHAIN_DESCRIPTION_microsoft="Microsoft Visual Studio"
50TOOLCHAIN_DESCRIPTION_solstudio="Oracle Solaris Studio"
51TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
52
53# Minimum supported versions, empty means unspecified
54TOOLCHAIN_MINIMUM_VERSION_clang="3.2"
55TOOLCHAIN_MINIMUM_VERSION_gcc="4.3"
56TOOLCHAIN_MINIMUM_VERSION_microsoft=""
57TOOLCHAIN_MINIMUM_VERSION_solstudio="5.12"
58TOOLCHAIN_MINIMUM_VERSION_xlc=""
59
60# Prepare the system so that TOOLCHAIN_CHECK_COMPILER_VERSION can be called.
61# Must have CC_VERSION_NUMBER and CXX_VERSION_NUMBER.
62AC_DEFUN([TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS],
63[
64  if test "x$CC_VERSION_NUMBER" != "x$CXX_VERSION_NUMBER"; then
65    AC_MSG_WARN([C and C++ compiler has different version numbers, $CC_VERSION_NUMBER vs $CXX_VERSION_NUMBER.])
66    AC_MSG_WARN([This typically indicates a broken setup, and is not supported])
67  fi
68
69  # We only check CC_VERSION_NUMBER since we assume CXX_VERSION_NUMBER is equal.
70  if [ [[ "$CC_VERSION_NUMBER" =~ (.*\.){3} ]] ]; then
71    AC_MSG_WARN([C compiler version number has more than three parts (X.Y.Z): $CC_VERSION_NUMBER. Comparisons might be wrong.])
72  fi
73
74  if [ [[  "$CC_VERSION_NUMBER" =~ [0-9]{6} ]] ]; then
75    AC_MSG_WARN([C compiler version number has a part larger than 99999: $CC_VERSION_NUMBER. Comparisons might be wrong.])
76  fi
77
78  COMPARABLE_ACTUAL_VERSION=`$AWK -F. '{ printf("%05d%05d%05d\n", [$]1, [$]2, [$]3) }' <<< "$CC_VERSION_NUMBER"`
79])
80
81# Check if the configured compiler (C and C++) is of a specific version or
82# newer. TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS must have been called before.
83#
84# Arguments:
85#   VERSION:   The version string to check against the found version
86#   IF_AT_LEAST:   block to run if the compiler is at least this version (>=)
87#   IF_OLDER_THAN:   block to run if the compiler is older than this version (<)
88BASIC_DEFUN_NAMED([TOOLCHAIN_CHECK_COMPILER_VERSION],
89    [*VERSION IF_AT_LEAST IF_OLDER_THAN], [$@],
90[
91  # Need to assign to a variable since m4 is blocked from modifying parts in [].
92  REFERENCE_VERSION=ARG_VERSION
93
94  if [ [[ "$REFERENCE_VERSION" =~ (.*\.){3} ]] ]; then
95    AC_MSG_ERROR([Internal errror: Cannot compare to ARG_VERSION, only three parts (X.Y.Z) is supported])
96  fi
97
98  if [ [[ "$REFERENCE_VERSION" =~ [0-9]{6} ]] ]; then
99    AC_MSG_ERROR([Internal errror: Cannot compare to ARG_VERSION, only parts < 99999 is supported])
100  fi
101
102  # Version comparison method inspired by http://stackoverflow.com/a/24067243
103  COMPARABLE_REFERENCE_VERSION=`$AWK -F. '{ printf("%05d%05d%05d\n", [$]1, [$]2, [$]3) }' <<< "$REFERENCE_VERSION"`
104
105  if test $COMPARABLE_ACTUAL_VERSION -ge $COMPARABLE_REFERENCE_VERSION ; then
106    :
107    ARG_IF_AT_LEAST
108  else
109    :
110    ARG_IF_OLDER_THAN
111  fi
112])
113
114# Setup a number of variables describing how native output files are
115# named on this platform/toolchain.
116AC_DEFUN([TOOLCHAIN_SETUP_FILENAME_PATTERNS],
117[
118  # Define filename patterns
119  if test "x$OPENJDK_TARGET_OS" = xwindows; then
120    LIBRARY_PREFIX=
121    SHARED_LIBRARY_SUFFIX='.dll'
122    STATIC_LIBRARY_SUFFIX='.lib'
123    SHARED_LIBRARY='[$]1.dll'
124    STATIC_LIBRARY='[$]1.lib'
125    OBJ_SUFFIX='.obj'
126    EXE_SUFFIX='.exe'
127  else
128    LIBRARY_PREFIX=lib
129    SHARED_LIBRARY_SUFFIX='.so'
130    STATIC_LIBRARY_SUFFIX='.a'
131    SHARED_LIBRARY='lib[$]1.so'
132    STATIC_LIBRARY='lib[$]1.a'
133    OBJ_SUFFIX='.o'
134    EXE_SUFFIX=''
135    if test "x$OPENJDK_TARGET_OS" = xmacosx; then
136      # For full static builds, we're overloading the SHARED_LIBRARY
137      # variables in order to limit the amount of changes required.
138      # It would be better to remove SHARED and just use LIBRARY and
139      # LIBRARY_SUFFIX for libraries that can be built either
140      # shared or static and use STATIC_* for libraries that are
141      # always built statically.
142      if test "x$STATIC_BUILD" = xtrue; then
143        SHARED_LIBRARY='lib[$]1.a'
144        SHARED_LIBRARY_SUFFIX='.a'
145      else
146        SHARED_LIBRARY='lib[$]1.dylib'
147        SHARED_LIBRARY_SUFFIX='.dylib'
148      fi
149    fi
150  fi
151
152  AC_SUBST(LIBRARY_PREFIX)
153  AC_SUBST(SHARED_LIBRARY_SUFFIX)
154  AC_SUBST(STATIC_LIBRARY_SUFFIX)
155  AC_SUBST(SHARED_LIBRARY)
156  AC_SUBST(STATIC_LIBRARY)
157  AC_SUBST(OBJ_SUFFIX)
158  AC_SUBST(EXE_SUFFIX)
159])
160
161# Determine which toolchain type to use, and make sure it is valid for this
162# platform. Setup various information about the selected toolchain.
163AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
164[
165  AC_ARG_WITH(toolchain-type, [AS_HELP_STRING([--with-toolchain-type],
166      [the toolchain type (or family) to use, use '--help' to show possible values @<:@platform dependent@:>@])])
167
168  # Use indirect variable referencing
169  toolchain_var_name=VALID_TOOLCHAINS_$OPENJDK_BUILD_OS
170  VALID_TOOLCHAINS=${!toolchain_var_name}
171
172  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
173    if test -n "$XCODEBUILD"; then
174      # On Mac OS X, default toolchain to clang after Xcode 5
175      XCODE_VERSION_OUTPUT=`"$XCODEBUILD" -version 2>&1 | $HEAD -n 1`
176      $ECHO "$XCODE_VERSION_OUTPUT" | $GREP "Xcode " > /dev/null
177      if test $? -ne 0; then
178        AC_MSG_ERROR([Failed to determine Xcode version.])
179      fi
180      XCODE_MAJOR_VERSION=`$ECHO $XCODE_VERSION_OUTPUT | \
181          $SED -e 's/^Xcode \(@<:@1-9@:>@@<:@0-9.@:>@*\)/\1/' | \
182          $CUT -f 1 -d .`
183      AC_MSG_NOTICE([Xcode major version: $XCODE_MAJOR_VERSION])
184      if test $XCODE_MAJOR_VERSION -ge 5; then
185          DEFAULT_TOOLCHAIN="clang"
186      else
187          DEFAULT_TOOLCHAIN="gcc"
188      fi
189    else
190      # If Xcode is not installed, but the command line tools are
191      # then we can't run xcodebuild. On these systems we should
192      # default to clang
193      DEFAULT_TOOLCHAIN="clang"
194    fi
195  else
196    # First toolchain type in the list is the default
197    DEFAULT_TOOLCHAIN=${VALID_TOOLCHAINS%% *}
198  fi
199
200  if test "x$with_toolchain_type" = xlist; then
201    # List all toolchains
202    AC_MSG_NOTICE([The following toolchains are valid on this platform:])
203    for toolchain in $VALID_TOOLCHAINS; do
204      toolchain_var_name=TOOLCHAIN_DESCRIPTION_$toolchain
205      TOOLCHAIN_DESCRIPTION=${!toolchain_var_name}
206      $PRINTF "  %-10s  %s\n" $toolchain "$TOOLCHAIN_DESCRIPTION"
207    done
208
209    exit 0
210  elif test "x$with_toolchain_type" != x; then
211    # User override; check that it is valid
212    if test "x${VALID_TOOLCHAINS/$with_toolchain_type/}" = "x${VALID_TOOLCHAINS}"; then
213      AC_MSG_NOTICE([Toolchain type $with_toolchain_type is not valid on this platform.])
214      AC_MSG_NOTICE([Valid toolchains: $VALID_TOOLCHAINS.])
215      AC_MSG_ERROR([Cannot continue.])
216    fi
217    TOOLCHAIN_TYPE=$with_toolchain_type
218  else
219    # No flag given, use default
220    TOOLCHAIN_TYPE=$DEFAULT_TOOLCHAIN
221  fi
222  AC_SUBST(TOOLCHAIN_TYPE)
223
224  TOOLCHAIN_CC_BINARY_clang="clang"
225  TOOLCHAIN_CC_BINARY_gcc="gcc"
226  TOOLCHAIN_CC_BINARY_microsoft="cl"
227  TOOLCHAIN_CC_BINARY_solstudio="cc"
228  TOOLCHAIN_CC_BINARY_xlc="xlc_r"
229
230  TOOLCHAIN_CXX_BINARY_clang="clang++"
231  TOOLCHAIN_CXX_BINARY_gcc="g++"
232  TOOLCHAIN_CXX_BINARY_microsoft="cl"
233  TOOLCHAIN_CXX_BINARY_solstudio="CC"
234  TOOLCHAIN_CXX_BINARY_xlc="xlC_r"
235
236  # Use indirect variable referencing
237  toolchain_var_name=TOOLCHAIN_DESCRIPTION_$TOOLCHAIN_TYPE
238  TOOLCHAIN_DESCRIPTION=${!toolchain_var_name}
239  toolchain_var_name=TOOLCHAIN_MINIMUM_VERSION_$TOOLCHAIN_TYPE
240  TOOLCHAIN_MINIMUM_VERSION=${!toolchain_var_name}
241  toolchain_var_name=TOOLCHAIN_CC_BINARY_$TOOLCHAIN_TYPE
242  TOOLCHAIN_CC_BINARY=${!toolchain_var_name}
243  toolchain_var_name=TOOLCHAIN_CXX_BINARY_$TOOLCHAIN_TYPE
244  TOOLCHAIN_CXX_BINARY=${!toolchain_var_name}
245
246  TOOLCHAIN_SETUP_FILENAME_PATTERNS
247
248  if test "x$TOOLCHAIN_TYPE" = "x$DEFAULT_TOOLCHAIN"; then
249    AC_MSG_NOTICE([Using default toolchain $TOOLCHAIN_TYPE ($TOOLCHAIN_DESCRIPTION)])
250  else
251    AC_MSG_NOTICE([Using user selected toolchain $TOOLCHAIN_TYPE ($TOOLCHAIN_DESCRIPTION). Default toolchain is $DEFAULT_TOOLCHAIN.])
252  fi
253])
254
255# Before we start detecting the toolchain executables, we might need some
256# special setup, e.g. additional paths etc.
257AC_DEFUN_ONCE([TOOLCHAIN_PRE_DETECTION],
258[
259  # FIXME: Is this needed?
260  AC_LANG(C++)
261
262  # Store the CFLAGS etc passed to the configure script.
263  ORG_CFLAGS="$CFLAGS"
264  ORG_CXXFLAGS="$CXXFLAGS"
265
266  # autoconf magic only relies on PATH, so update it if tools dir is specified
267  OLD_PATH="$PATH"
268
269  # On Windows, we need to detect the visual studio installation first.
270  # This will change the PATH, but we need to keep that new PATH even
271  # after toolchain detection is done, since the compiler (on x86) uses
272  # it for DLL resolution in runtime.
273  if test "x$OPENJDK_BUILD_OS" = "xwindows" \
274      && test "x$TOOLCHAIN_TYPE" = "xmicrosoft"; then
275    TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV
276    # Reset path to VS_PATH. It will include everything that was on PATH at the time we
277    # ran TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV.
278    PATH="$VS_PATH"
279    # The microsoft toolchain also requires INCLUDE and LIB to be set.
280    export INCLUDE="$VS_INCLUDE"
281    export LIB="$VS_LIB"
282  else
283    if test "x$XCODE_VERSION_OUTPUT" != x; then
284      # For Xcode, we set the Xcode version as TOOLCHAIN_VERSION
285      TOOLCHAIN_VERSION=`$ECHO $XCODE_VERSION_OUTPUT | $CUT -f 2 -d ' '`
286      TOOLCHAIN_DESCRIPTION="$TOOLCHAIN_DESCRIPTION from Xcode"
287    else
288      # Currently we do not define this for other toolchains. This might change as the need arise.
289      TOOLCHAIN_VERSION=
290    fi
291  fi
292  AC_SUBST(TOOLCHAIN_VERSION)
293
294  # For solaris we really need solaris tools, and not the GNU equivalent.
295  # The build tools on Solaris reside in /usr/ccs (C Compilation System),
296  # so add that to path before starting to probe.
297  # FIXME: This was originally only done for AS,NM,GNM,STRIP,OBJCOPY,OBJDUMP.
298  if test "x$OPENJDK_BUILD_OS" = xsolaris; then
299    PATH="/usr/ccs/bin:$PATH"
300  fi
301
302  # Finally add TOOLCHAIN_PATH at the beginning, to allow --with-tools-dir to
303  # override all other locations.
304  if test "x$TOOLCHAIN_PATH" != x; then
305    PATH=$TOOLCHAIN_PATH:$PATH
306  fi
307])
308
309# Restore path, etc
310AC_DEFUN_ONCE([TOOLCHAIN_POST_DETECTION],
311[
312  # Restore old path.
313  PATH="$OLD_PATH"
314
315  # Restore the flags to the user specified values.
316  # This is necessary since AC_PROG_CC defaults CFLAGS to "-g -O2"
317  CFLAGS="$ORG_CFLAGS"
318  CXXFLAGS="$ORG_CXXFLAGS"
319])
320
321# Check if a compiler is of the toolchain type we expect, and save the version
322# information from it. If the compiler does not match the expected type,
323# this function will abort using AC_MSG_ERROR. If it matches, the version will
324# be stored in CC_VERSION_NUMBER/CXX_VERSION_NUMBER (as a dotted number), and
325# the full version string in CC_VERSION_STRING/CXX_VERSION_STRING.
326#
327# $1 = compiler to test (CC or CXX)
328# $2 = human readable name of compiler (C or C++)
329AC_DEFUN([TOOLCHAIN_EXTRACT_COMPILER_VERSION],
330[
331  COMPILER=[$]$1
332  COMPILER_NAME=$2
333
334  if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
335    # cc -V output typically looks like
336    #     cc: Sun C 5.12 Linux_i386 2011/11/16
337    COMPILER_VERSION_OUTPUT=`$COMPILER -V 2>&1`
338    # Check that this is likely to be the Solaris Studio cc.
339    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "^.*: Sun $COMPILER_NAME" > /dev/null
340    if test $? -ne 0; then
341      ALT_VERSION_OUTPUT=`$COMPILER --version 2>&1`
342      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
343      AC_MSG_NOTICE([The result from running with -V was: "$COMPILER_VERSION_OUTPUT"])
344      AC_MSG_NOTICE([The result from running with --version was: "$ALT_VERSION_OUTPUT"])
345      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
346    fi
347    # Remove usage instructions (if present), and
348    # collapse compiler output into a single line
349    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT | \
350        $SED -e 's/ *@<:@Uu@:>@sage:.*//'`
351    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
352        $SED -e "s/^.*@<:@ ,\t@:>@$COMPILER_NAME@<:@ ,\t@:>@\(@<:@1-9@:>@\.@<:@0-9@:>@@<:@0-9@:>@*\).*/\1/"`
353  elif test  "x$TOOLCHAIN_TYPE" = xxlc; then
354    # xlc -qversion output typically looks like
355    #     IBM XL C/C++ for AIX, V11.1 (5724-X13)
356    #     Version: 11.01.0000.0015
357    COMPILER_VERSION_OUTPUT=`$COMPILER -qversion 2>&1`
358    # Check that this is likely to be the IBM XL C compiler.
359    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "IBM XL C" > /dev/null
360    if test $? -ne 0; then
361      ALT_VERSION_OUTPUT=`$COMPILER --version 2>&1`
362      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
363      AC_MSG_NOTICE([The result from running with -qversion was: "$COMPILER_VERSION_OUTPUT"])
364      AC_MSG_NOTICE([The result from running with --version was: "$ALT_VERSION_OUTPUT"])
365      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
366    fi
367    # Collapse compiler output into a single line
368    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
369    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
370        $SED -e 's/^.*, V\(@<:@1-9@:>@@<:@0-9.@:>@*\).*$/\1/'`
371  elif test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
372    # There is no specific version flag, but all output starts with a version string.
373    # First line typically looks something like:
374    # Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86
375    COMPILER_VERSION_OUTPUT=`$COMPILER 2>&1 | $HEAD -n 1 | $TR -d '\r'`
376    # Check that this is likely to be Microsoft CL.EXE.
377    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "Microsoft.*Compiler" > /dev/null
378    if test $? -ne 0; then
379      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
380      AC_MSG_NOTICE([The result from running it was: "$COMPILER_VERSION_OUTPUT"])
381      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
382    fi
383    # Collapse compiler output into a single line
384    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
385    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
386        $SED -e 's/^.*ersion.\(@<:@1-9@:>@@<:@0-9.@:>@*\) .*$/\1/'`
387  elif test  "x$TOOLCHAIN_TYPE" = xgcc; then
388    # gcc --version output typically looks like
389    #     gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
390    #     Copyright (C) 2013 Free Software Foundation, Inc.
391    #     This is free software; see the source for copying conditions.  There is NO
392    #     warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
393    COMPILER_VERSION_OUTPUT=`$COMPILER --version 2>&1`
394    # Check that this is likely to be GCC.
395    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "Free Software Foundation" > /dev/null
396    if test $? -ne 0; then
397      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
398      AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION"])
399      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
400    fi
401    # Remove Copyright and legalese from version string, and
402    # collapse into a single line
403    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT | \
404        $SED -e 's/ *Copyright .*//'`
405    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
406        $SED -e 's/^.* \(@<:@1-9@:>@\.@<:@0-9.@:>@*\) .*$/\1/'`
407  elif test  "x$TOOLCHAIN_TYPE" = xclang; then
408    # clang --version output typically looks like
409    #    Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
410    #    clang version 3.3 (tags/RELEASE_33/final)
411    # or
412    #    Debian clang version 3.2-7ubuntu1 (tags/RELEASE_32/final) (based on LLVM 3.2)
413    #    Target: x86_64-pc-linux-gnu
414    #    Thread model: posix
415    COMPILER_VERSION_OUTPUT=`$COMPILER --version 2>&1`
416    # Check that this is likely to be clang
417    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "clang" > /dev/null
418    if test $? -ne 0; then
419      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
420      AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION_OUTPUT"])
421      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
422    fi
423    # Collapse compiler output into a single line
424    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
425    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
426        $SED -e 's/^.* version \(@<:@1-9@:>@@<:@0-9.@:>@*\).*$/\1/'`
427  else
428      AC_MSG_ERROR([Unknown toolchain type $TOOLCHAIN_TYPE.])
429  fi
430  # This sets CC_VERSION_NUMBER or CXX_VERSION_NUMBER. (This comment is a grep marker)
431  $1_VERSION_NUMBER="$COMPILER_VERSION_NUMBER"
432  # This sets CC_VERSION_STRING or CXX_VERSION_STRING. (This comment is a grep marker)
433  $1_VERSION_STRING="$COMPILER_VERSION_STRING"
434
435  AC_MSG_NOTICE([Using $TOOLCHAIN_TYPE $COMPILER_NAME compiler version $COMPILER_VERSION_NUMBER @<:@$COMPILER_VERSION_STRING@:>@])
436])
437
438# Try to locate the given C or C++ compiler in the path, or otherwise.
439#
440# $1 = compiler to test (CC or CXX)
441# $2 = human readable name of compiler (C or C++)
442# $3 = list of compiler names to search for
443AC_DEFUN([TOOLCHAIN_FIND_COMPILER],
444[
445  COMPILER_NAME=$2
446  SEARCH_LIST="$3"
447
448  if test "x[$]$1" != x; then
449    # User has supplied compiler name already, always let that override.
450    AC_MSG_NOTICE([Will use user supplied compiler $1=[$]$1])
451    if test "x`basename [$]$1`" = "x[$]$1"; then
452      # A command without a complete path is provided, search $PATH.
453
454      AC_PATH_PROGS(POTENTIAL_$1, [$]$1)
455      if test "x$POTENTIAL_$1" != x; then
456        $1=$POTENTIAL_$1
457      else
458        AC_MSG_ERROR([User supplied compiler $1=[$]$1 could not be found])
459      fi
460    else
461      # Otherwise it might already be a complete path
462      if test ! -x "[$]$1"; then
463        AC_MSG_ERROR([User supplied compiler $1=[$]$1 does not exist])
464      fi
465    fi
466  else
467    # No user supplied value. Locate compiler ourselves.
468
469    # If we are cross compiling, assume cross compilation tools follows the
470    # cross compilation standard where they are prefixed with the autoconf
471    # standard name for the target. For example the binary
472    # i686-sun-solaris2.10-gcc will cross compile for i686-sun-solaris2.10.
473    # If we are not cross compiling, then the default compiler name will be
474    # used.
475
476    $1=
477    # If TOOLCHAIN_PATH is set, check for all compiler names in there first
478    # before checking the rest of the PATH.
479    # FIXME: Now that we prefix the TOOLS_DIR to the PATH in the PRE_DETECTION
480    # step, this should not be necessary.
481    if test -n "$TOOLCHAIN_PATH"; then
482      PATH_save="$PATH"
483      PATH="$TOOLCHAIN_PATH"
484      AC_PATH_PROGS(TOOLCHAIN_PATH_$1, $SEARCH_LIST)
485      $1=$TOOLCHAIN_PATH_$1
486      PATH="$PATH_save"
487    fi
488
489    # AC_PATH_PROGS can't be run multiple times with the same variable,
490    # so create a new name for this run.
491    if test "x[$]$1" = x; then
492      AC_PATH_PROGS(POTENTIAL_$1, $SEARCH_LIST)
493      $1=$POTENTIAL_$1
494    fi
495
496    if test "x[$]$1" = x; then
497      HELP_MSG_MISSING_DEPENDENCY([devkit])
498      AC_MSG_ERROR([Could not find a $COMPILER_NAME compiler. $HELP_MSG])
499    fi
500  fi
501
502  # Now we have a compiler binary in $1. Make sure it's okay.
503  BASIC_FIXUP_EXECUTABLE($1)
504  TEST_COMPILER="[$]$1"
505
506  AC_MSG_CHECKING([resolved symbolic links for $1])
507  SYMLINK_ORIGINAL="$TEST_COMPILER"
508  BASIC_REMOVE_SYMBOLIC_LINKS(SYMLINK_ORIGINAL)
509  if test "x$TEST_COMPILER" = "x$SYMLINK_ORIGINAL"; then
510    AC_MSG_RESULT([no symlink])
511  else
512    AC_MSG_RESULT([$SYMLINK_ORIGINAL])
513
514    # We can't handle ccache by gcc wrappers, since we need to know if we're
515    # using ccache. Instead ccache usage must be controlled by a configure option.
516    COMPILER_BASENAME=`$BASENAME "$SYMLINK_ORIGINAL"`
517    if test "x$COMPILER_BASENAME" = "xccache"; then
518      AC_MSG_NOTICE([Please use --enable-ccache instead of providing a wrapped compiler.])
519      AC_MSG_ERROR([$TEST_COMPILER is a symbolic link to ccache. This is not supported.])
520    fi
521  fi
522
523  TOOLCHAIN_EXTRACT_COMPILER_VERSION([$1], [$COMPILER_NAME])
524])
525
526# Detect the core components of the toolchain, i.e. the compilers (CC and CXX),
527# preprocessor (CPP and CXXCPP), the linker (LD), the assembler (AS) and the
528# archiver (AR). Verify that the compilers are correct according to the
529# toolchain type.
530AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
531[
532  #
533  # Setup the compilers (CC and CXX)
534  #
535  TOOLCHAIN_FIND_COMPILER([CC], [C], $TOOLCHAIN_CC_BINARY)
536  # Now that we have resolved CC ourself, let autoconf have its go at it
537  AC_PROG_CC([$CC])
538
539  TOOLCHAIN_FIND_COMPILER([CXX], [C++], $TOOLCHAIN_CXX_BINARY)
540  # Now that we have resolved CXX ourself, let autoconf have its go at it
541  AC_PROG_CXX([$CXX])
542
543  # This is the compiler version number on the form X.Y[.Z]
544  AC_SUBST(CC_VERSION_NUMBER)
545  AC_SUBST(CXX_VERSION_NUMBER)
546
547  TOOLCHAIN_PREPARE_FOR_VERSION_COMPARISONS
548
549  if test "x$TOOLCHAIN_MINIMUM_VERSION" != x; then
550    TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: $TOOLCHAIN_MINIMUM_VERSION,
551        IF_OLDER_THAN: [
552          AC_MSG_WARN([You are using $TOOLCHAIN_TYPE older than $TOOLCHAIN_MINIMUM_VERSION. This is not a supported configuration.])
553        ]
554    )
555  fi
556
557  #
558  # Setup the preprocessor (CPP and CXXCPP)
559  #
560  AC_PROG_CPP
561  BASIC_FIXUP_EXECUTABLE(CPP)
562  AC_PROG_CXXCPP
563  BASIC_FIXUP_EXECUTABLE(CXXCPP)
564
565  #
566  # Setup the linker (LD)
567  #
568  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
569    # In the Microsoft toolchain we have a separate LD command "link".
570    # Make sure we reject /usr/bin/link (as determined in CYGWIN_LINK), which is
571    # a cygwin program for something completely different.
572    AC_CHECK_PROG([LD], [link],[link],,, [$CYGWIN_LINK])
573    BASIC_FIXUP_EXECUTABLE(LD)
574    # Verify that we indeed succeeded with this trick.
575    AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
576    "$LD" --version > /dev/null
577    if test $? -eq 0 ; then
578      AC_MSG_RESULT([no])
579      AC_MSG_ERROR([This is the Cygwin link tool. Please check your PATH and rerun configure.])
580    else
581      AC_MSG_RESULT([yes])
582    fi
583    LDCXX="$LD"
584  else
585    # All other toolchains use the compiler to link.
586    LD="$CC"
587    LDCXX="$CXX"
588  fi
589  AC_SUBST(LD)
590  # FIXME: it should be CXXLD, according to standard (cf CXXCPP)
591  AC_SUBST(LDCXX)
592
593  #
594  # Setup the assembler (AS)
595  #
596  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
597    # FIXME: should this really be solaris, or solstudio?
598    BASIC_PATH_PROGS(AS, as)
599    BASIC_FIXUP_EXECUTABLE(AS)
600  else
601    # FIXME: is this correct for microsoft?
602    AS="$CC -c"
603  fi
604  AC_SUBST(AS)
605
606  #
607  # Setup the archiver (AR)
608  #
609  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
610    # The corresponding ar tool is lib.exe (used to create static libraries)
611    AC_CHECK_PROG([AR], [lib],[lib],,,)
612  elif test "x$TOOLCHAIN_TYPE" = xgcc; then
613    BASIC_CHECK_TOOLS(AR, ar gcc-ar)
614  else
615    BASIC_CHECK_TOOLS(AR, ar)
616  fi
617  BASIC_FIXUP_EXECUTABLE(AR)
618])
619
620# Setup additional tools that is considered a part of the toolchain, but not the
621# core part. Many of these are highly platform-specific and do not exist,
622# and/or are not needed on all platforms.
623AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_EXTRA],
624[
625  if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
626    BASIC_PATH_PROGS(LIPO, lipo)
627    BASIC_FIXUP_EXECUTABLE(LIPO)
628  fi
629
630  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
631    AC_CHECK_PROG([MT], [mt], [mt],,, [/usr/bin/mt])
632    BASIC_FIXUP_EXECUTABLE(MT)
633    # Setup the resource compiler (RC)
634    AC_CHECK_PROG([RC], [rc], [rc],,, [/usr/bin/rc])
635    BASIC_FIXUP_EXECUTABLE(RC)
636    AC_CHECK_PROG([DUMPBIN], [dumpbin], [dumpbin],,,)
637    BASIC_FIXUP_EXECUTABLE(DUMPBIN)
638    # We need to check for 'msbuild.exe' because at the place where we expect to
639    # find 'msbuild.exe' there's also a directory called 'msbuild' and configure
640    # won't find the 'msbuild.exe' executable in that case (and the
641    # 'ac_executable_extensions' is unusable due to performance reasons).
642    # Notice that we intentionally don't fix up the path to MSBUILD because we
643    # will call it in a DOS shell during freetype detection on Windows (see
644    # 'LIB_SETUP_FREETYPE' in "libraries.m4"
645    AC_CHECK_PROG([MSBUILD], [msbuild.exe], [msbuild.exe],,,)
646  fi
647
648  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
649    BASIC_PATH_PROGS(STRIP, strip)
650    BASIC_FIXUP_EXECUTABLE(STRIP)
651    BASIC_PATH_PROGS(NM, nm)
652    BASIC_FIXUP_EXECUTABLE(NM)
653    BASIC_PATH_PROGS(GNM, gnm)
654    BASIC_FIXUP_EXECUTABLE(GNM)
655  elif test "x$OPENJDK_TARGET_OS" != xwindows; then
656    # FIXME: we should unify this with the solaris case above.
657    BASIC_CHECK_TOOLS(STRIP, strip)
658    BASIC_FIXUP_EXECUTABLE(STRIP)
659    if test "x$TOOLCHAIN_TYPE" = xgcc; then
660      BASIC_CHECK_TOOLS(NM, nm gcc-nm)
661    else
662      BASIC_CHECK_TOOLS(NM, nm)
663    fi
664    BASIC_FIXUP_EXECUTABLE(NM)
665    GNM="$NM"
666    AC_SUBST(GNM)
667  fi
668
669  # objcopy is used for moving debug symbols to separate files when
670  # full debug symbols are enabled.
671  if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xlinux; then
672    BASIC_CHECK_TOOLS(OBJCOPY, [gobjcopy objcopy])
673    # Only call fixup if objcopy was found.
674    if test -n "$OBJCOPY"; then
675      BASIC_FIXUP_EXECUTABLE(OBJCOPY)
676      if test "x$OPENJDK_BUILD_OS" = xsolaris; then
677        # objcopy prior to 2.21.1 on solaris is broken and is not usable.
678        # Rewrite objcopy version output to VALID_VERSION or BAD_VERSION.
679        # - version number is last blank separate word on first line
680        # - version number formats that have been seen:
681        #   - <major>.<minor>
682        #   - <major>.<minor>.<micro>
683        OBJCOPY_VERSION=`$OBJCOPY --version | $HEAD -n 1`
684        # The outer [ ] is to prevent m4 from eating the [] in the sed expression.
685        [ OBJCOPY_VERSION_CHECK=`$ECHO $OBJCOPY_VERSION | $SED -n \
686              -e 's/.* //' \
687              -e '/^[01]\./b bad' \
688              -e '/^2\./{' \
689              -e '  s/^2\.//' \
690              -e '  /^[0-9]$/b bad' \
691              -e '  /^[0-9]\./b bad' \
692              -e '  /^1[0-9]$/b bad' \
693              -e '  /^1[0-9]\./b bad' \
694              -e '  /^20\./b bad' \
695              -e '  /^21\.0$/b bad' \
696              -e '  /^21\.0\./b bad' \
697              -e '}' \
698              -e ':good' \
699              -e 's/.*/VALID_VERSION/p' \
700              -e 'q' \
701              -e ':bad' \
702              -e 's/.*/BAD_VERSION/p' \
703              -e 'q'` ]
704        if test "x$OBJCOPY_VERSION_CHECK" = xBAD_VERSION; then
705          OBJCOPY=
706          AC_MSG_WARN([Ignoring found objcopy since it is broken (prior to 2.21.1). No debug symbols will be generated.])
707          AC_MSG_NOTICE([objcopy reports version $OBJCOPY_VERSION])
708          AC_MSG_NOTICE([Note: patch 149063-01 or newer contains the correct Solaris 10 SPARC version])
709          AC_MSG_NOTICE([Note: patch 149064-01 or newer contains the correct Solaris 10 X86 version])
710          AC_MSG_NOTICE([Note: Solaris 11 Update 1 contains the correct version])
711        fi
712      fi
713    fi
714  fi
715
716  BASIC_CHECK_TOOLS(OBJDUMP, [gobjdump objdump])
717  if test "x$OBJDUMP" != x; then
718    # Only used for compare.sh; we can live without it. BASIC_FIXUP_EXECUTABLE
719    # bails if argument is missing.
720    BASIC_FIXUP_EXECUTABLE(OBJDUMP)
721  fi
722])
723
724# Setup the build tools (i.e, the compiler and linker used to build programs
725# that should be run on the build platform, not the target platform, as a build
726# helper). Since the non-cross-compile case uses the normal, target compilers
727# for this, we can only do this after these have been setup.
728AC_DEFUN_ONCE([TOOLCHAIN_SETUP_BUILD_COMPILERS],
729[
730  if test "x$COMPILE_TYPE" = "xcross"; then
731    # Now we need to find a C/C++ compiler that can build executables for the
732    # build platform. We can't use the AC_PROG_CC macro, since it can only be
733    # used once. Also, we need to do this without adding a tools dir to the
734    # path, otherwise we might pick up cross-compilers which don't use standard
735    # naming.
736
737    OLDPATH="$PATH"
738
739    AC_ARG_WITH(build-devkit, [AS_HELP_STRING([--with-build-devkit],
740        [Devkit to use for the build platform toolchain])])
741    if test "x$with_build_devkit" = "xyes"; then
742      AC_MSG_ERROR([--with-build-devkit must have a value])
743    elif test -n "$with_build_devkit"; then
744      if test ! -d "$with_build_devkit"; then
745        AC_MSG_ERROR([--with-build-devkit points to non existing dir: $with_build_devkit])
746      else
747        BASIC_FIXUP_PATH([with_build_devkit])
748        BUILD_DEVKIT_ROOT="$with_build_devkit"
749        # Check for a meta data info file in the root of the devkit
750        if test -f "$BUILD_DEVKIT_ROOT/devkit.info"; then
751          # Process devkit.info so that existing devkit variables are not
752          # modified by this
753          $SED -e "s/^DEVKIT_/BUILD_DEVKIT_/g" \
754              -e "s/\$DEVKIT_ROOT/\$BUILD_DEVKIT_ROOT/g" \
755              -e "s/\$host/\$build/g" \
756              $BUILD_DEVKIT_ROOT/devkit.info \
757              > $CONFIGURESUPPORT_OUTPUTDIR/build-devkit.info
758          . $CONFIGURESUPPORT_OUTPUTDIR/build-devkit.info
759          # This potentially sets the following:
760          # A descriptive name of the devkit
761          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_NAME])
762          # Corresponds to --with-extra-path
763          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_EXTRA_PATH])
764          # Corresponds to --with-toolchain-path
765          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_TOOLCHAIN_PATH])
766          # Corresponds to --with-sysroot
767          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_SYSROOT])
768          # Skip the Window specific parts
769        fi
770
771        AC_MSG_CHECKING([for build platform devkit])
772        if test "x$BUILD_DEVKIT_NAME" != x; then
773          AC_MSG_RESULT([$BUILD_DEVKIT_NAME in $BUILD_DEVKIT_ROOT])
774        else
775          AC_MSG_RESULT([$BUILD_DEVKIT_ROOT])
776        fi
777
778        BUILD_SYSROOT="$BUILD_DEVKIT_SYSROOT"
779        FLAGS_SETUP_SYSROOT_FLAGS([BUILD_])
780
781         # Fallback default of just /bin if DEVKIT_PATH is not defined
782        if test "x$BUILD_DEVKIT_TOOLCHAIN_PATH" = x; then
783          BUILD_DEVKIT_TOOLCHAIN_PATH="$BUILD_DEVKIT_ROOT/bin"
784        fi
785        PATH="$BUILD_DEVKIT_TOOLCHAIN_PATH:$BUILD_DEVKIT_EXTRA_PATH"
786      fi
787    fi
788
789    # FIXME: we should list the discovered compilers as an exclude pattern!
790    # If we do that, we can do this detection before POST_DETECTION, and still
791    # find the build compilers in the tools dir, if needed.
792    BASIC_REQUIRE_PROGS(BUILD_CC, [cl cc gcc])
793    BASIC_FIXUP_EXECUTABLE(BUILD_CC)
794    BASIC_REQUIRE_PROGS(BUILD_CXX, [cl CC g++])
795    BASIC_FIXUP_EXECUTABLE(BUILD_CXX)
796    BASIC_PATH_PROGS(BUILD_NM, nm gcc-nm)
797    BASIC_FIXUP_EXECUTABLE(BUILD_NM)
798    BASIC_PATH_PROGS(BUILD_AR, ar gcc-ar)
799    BASIC_FIXUP_EXECUTABLE(BUILD_AR)
800    BASIC_PATH_PROGS(BUILD_OBJCOPY, objcopy)
801    BASIC_FIXUP_EXECUTABLE(BUILD_OBJCOPY)
802    BASIC_PATH_PROGS(BUILD_STRIP, strip)
803    BASIC_FIXUP_EXECUTABLE(BUILD_STRIP)
804    # Assume the C compiler is the assembler
805    BUILD_AS="$BUILD_CC -c"
806    # Just like for the target compiler, use the compiler as linker
807    BUILD_LD="$BUILD_CC"
808    BUILD_LDCXX="$BUILD_CXX"
809
810    PATH="$OLDPATH"
811  else
812    # If we are not cross compiling, use the normal target compilers for
813    # building the build platform executables.
814    BUILD_CC="$CC"
815    BUILD_CXX="$CXX"
816    BUILD_LD="$LD"
817    BUILD_LDCXX="$LDCXX"
818    BUILD_NM="$NM"
819    BUILD_AS="$AS"
820    BUILD_OBJCOPY="$OBJCOPY"
821    BUILD_STRIP="$STRIP"
822    BUILD_SYSROOT_CFLAGS="$SYSROOT_CFLAGS"
823    BUILD_SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS"
824    BUILD_AR="$AR"
825  fi
826
827  AC_SUBST(BUILD_CC)
828  AC_SUBST(BUILD_CXX)
829  AC_SUBST(BUILD_LD)
830  AC_SUBST(BUILD_LDCXX)
831  AC_SUBST(BUILD_NM)
832  AC_SUBST(BUILD_AS)
833  AC_SUBST(BUILD_SYSROOT_CFLAGS)
834  AC_SUBST(BUILD_SYSROOT_LDFLAGS)
835  AC_SUBST(BUILD_AR)
836])
837
838# Setup legacy variables that are still needed as alternative ways to refer to
839# parts of the toolchain.
840AC_DEFUN_ONCE([TOOLCHAIN_SETUP_LEGACY],
841[
842  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
843    # For hotspot, we need these in Windows mixed path,
844    # so rewrite them all. Need added .exe suffix.
845    HOTSPOT_CXX="$CXX.exe"
846    HOTSPOT_LD="$LD.exe"
847    HOTSPOT_MT="$MT.exe"
848    HOTSPOT_RC="$RC.exe"
849    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_CXX)
850    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_LD)
851    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_MT)
852    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_RC)
853    AC_SUBST(HOTSPOT_MT)
854    AC_SUBST(HOTSPOT_RC)
855  else
856    HOTSPOT_CXX="$CXX"
857    HOTSPOT_LD="$LD"
858  fi
859  AC_SUBST(HOTSPOT_CXX)
860  AC_SUBST(HOTSPOT_LD)
861
862  if test  "x$TOOLCHAIN_TYPE" = xclang; then
863    USE_CLANG=true
864  fi
865  AC_SUBST(USE_CLANG)
866])
867
868# Do some additional checks on the detected tools.
869AC_DEFUN_ONCE([TOOLCHAIN_MISC_CHECKS],
870[
871  # The package path is used only on macosx?
872  # FIXME: clean this up, and/or move it elsewhere.
873  PACKAGE_PATH=/opt/local
874  AC_SUBST(PACKAGE_PATH)
875
876  # Check for extra potential brokenness.
877  if test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
878    # On Windows, double-check that we got the right compiler.
879    CC_VERSION_OUTPUT=`$CC 2>&1 | $HEAD -n 1 | $TR -d '\r'`
880    COMPILER_CPU_TEST=`$ECHO $CC_VERSION_OUTPUT | $SED -n "s/^.* \(.*\)$/\1/p"`
881    if test "x$OPENJDK_TARGET_CPU" = "xx86"; then
882      if test "x$COMPILER_CPU_TEST" != "x80x86" -a "x$COMPILER_CPU_TEST" != "xx86"; then
883        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "80x86" or "x86".])
884      fi
885    elif test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
886      if test "x$COMPILER_CPU_TEST" != "xx64"; then
887        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "x64".])
888      fi
889    fi
890  fi
891
892  if test "x$TOOLCHAIN_TYPE" = xgcc; then
893    # If this is a --hash-style=gnu system, use --hash-style=both, why?
894    HAS_GNU_HASH=`$CC -dumpspecs 2>/dev/null | $GREP 'hash-style=gnu'`
895    # This is later checked when setting flags.
896
897    # "-Og" suppported for GCC 4.8 and later
898    CFLAG_OPTIMIZE_DEBUG_FLAG="-Og"
899    FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$CFLAG_OPTIMIZE_DEBUG_FLAG],
900      IF_TRUE: [HAS_CFLAG_OPTIMIZE_DEBUG=true],
901      IF_FALSE: [HAS_CFLAG_OPTIMIZE_DEBUG=false])
902
903    # "-z relro" supported in GNU binutils 2.17 and later
904    LINKER_RELRO_FLAG="-Wl,-z,relro"
905    FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [$LINKER_RELRO_FLAG],
906      IF_TRUE: [HAS_LINKER_RELRO=true],
907      IF_FALSE: [HAS_LINKER_RELRO=false])
908
909    # "-z now" supported in GNU binutils 2.11 and later
910    LINKER_NOW_FLAG="-Wl,-z,now"
911    FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [$LINKER_NOW_FLAG],
912      IF_TRUE: [HAS_LINKER_NOW=true],
913      IF_FALSE: [HAS_LINKER_NOW=false])
914  fi
915
916  # Check for broken SuSE 'ld' for which 'Only anonymous version tag is allowed
917  # in executable.'
918  USING_BROKEN_SUSE_LD=no
919  if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$TOOLCHAIN_TYPE" = xgcc; then
920    AC_MSG_CHECKING([for broken SuSE 'ld' which only understands anonymous version tags in executables])
921    $ECHO "SUNWprivate_1.1 { local: *; };" > version-script.map
922    $ECHO "int main() { }" > main.c
923    if $CXX -Wl,-version-script=version-script.map main.c 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then
924      AC_MSG_RESULT(no)
925      USING_BROKEN_SUSE_LD=no
926    else
927      AC_MSG_RESULT(yes)
928      USING_BROKEN_SUSE_LD=yes
929    fi
930    rm -rf version-script.map main.c a.out
931  fi
932  AC_SUBST(USING_BROKEN_SUSE_LD)
933])
934
935# Setup the JTReg Regression Test Harness.
936AC_DEFUN_ONCE([TOOLCHAIN_SETUP_JTREG],
937[
938  AC_ARG_WITH(jtreg, [AS_HELP_STRING([--with-jtreg],
939      [Regression Test Harness @<:@probed@:>@])],
940      [],
941      [with_jtreg=no])
942
943  if test "x$with_jtreg" = xno; then
944    # jtreg disabled
945    AC_MSG_CHECKING([for jtreg])
946    AC_MSG_RESULT(no)
947  else
948    if test "x$with_jtreg" != xyes; then
949      # with path specified.
950      JT_HOME="$with_jtreg"
951    fi
952
953    if test "x$JT_HOME" != x; then
954      AC_MSG_CHECKING([for jtreg])
955
956      # use JT_HOME enviroment var.
957      BASIC_FIXUP_PATH([JT_HOME])
958
959      # jtreg win32 script works for everybody
960      JTREGEXE="$JT_HOME/bin/jtreg"
961
962      if test ! -f "$JTREGEXE"; then
963        AC_MSG_ERROR([JTReg executable does not exist: $JTREGEXE])
964      fi
965
966      AC_MSG_RESULT($JTREGEXE)
967    else
968      # try to find jtreg on path
969      BASIC_REQUIRE_PROGS(JTREGEXE, jtreg)
970      JT_HOME="`$DIRNAME $JTREGEXE`"
971    fi
972  fi
973
974  AC_SUBST(JT_HOME)
975  AC_SUBST(JTREGEXE)
976])
977