toolchain.m4 revision 1857:87fd7459fac1
1#
2# Copyright (c) 2011, 2015, 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# Setup a number of variables describing how native output files are
54# named on this platform/toolchain.
55AC_DEFUN([TOOLCHAIN_SETUP_FILENAME_PATTERNS],
56[
57  # Define filename patterns
58  if test "x$OPENJDK_TARGET_OS" = xwindows; then
59    LIBRARY_PREFIX=
60    SHARED_LIBRARY_SUFFIX='.dll'
61    STATIC_LIBRARY_SUFFIX='.lib'
62    SHARED_LIBRARY='[$]1.dll'
63    STATIC_LIBRARY='[$]1.lib'
64    OBJ_SUFFIX='.obj'
65    EXE_SUFFIX='.exe'
66  else
67    LIBRARY_PREFIX=lib
68    SHARED_LIBRARY_SUFFIX='.so'
69    STATIC_LIBRARY_SUFFIX='.a'
70    SHARED_LIBRARY='lib[$]1.so'
71    STATIC_LIBRARY='lib[$]1.a'
72    OBJ_SUFFIX='.o'
73    EXE_SUFFIX=''
74    if test "x$OPENJDK_TARGET_OS" = xmacosx; then
75      # For full static builds, we're overloading the SHARED_LIBRARY
76      # variables in order to limit the amount of changes required.
77      # It would be better to remove SHARED and just use LIBRARY and
78      # LIBRARY_SUFFIX for libraries that can be built either
79      # shared or static and use STATIC_* for libraries that are
80      # always built statically.
81      if test "x$STATIC_BUILD" = xtrue; then
82        SHARED_LIBRARY='lib[$]1.a'
83        SHARED_LIBRARY_SUFFIX='.a'
84      else
85        SHARED_LIBRARY='lib[$]1.dylib'
86        SHARED_LIBRARY_SUFFIX='.dylib'
87      fi
88    fi
89  fi
90
91  AC_SUBST(LIBRARY_PREFIX)
92  AC_SUBST(SHARED_LIBRARY_SUFFIX)
93  AC_SUBST(STATIC_LIBRARY_SUFFIX)
94  AC_SUBST(SHARED_LIBRARY)
95  AC_SUBST(STATIC_LIBRARY)
96  AC_SUBST(OBJ_SUFFIX)
97  AC_SUBST(EXE_SUFFIX)
98])
99
100# Determine which toolchain type to use, and make sure it is valid for this
101# platform. Setup various information about the selected toolchain.
102AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
103[
104  AC_ARG_WITH(toolchain-type, [AS_HELP_STRING([--with-toolchain-type],
105      [the toolchain type (or family) to use, use '--help' to show possible values @<:@platform dependent@:>@])])
106
107  # Use indirect variable referencing
108  toolchain_var_name=VALID_TOOLCHAINS_$OPENJDK_BUILD_OS
109  VALID_TOOLCHAINS=${!toolchain_var_name}
110
111  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
112    if test -n "$XCODEBUILD"; then
113      # On Mac OS X, default toolchain to clang after Xcode 5
114      XCODE_VERSION_OUTPUT=`"$XCODEBUILD" -version 2>&1 | $HEAD -n 1`
115      $ECHO "$XCODE_VERSION_OUTPUT" | $GREP "Xcode " > /dev/null
116      if test $? -ne 0; then
117        AC_MSG_ERROR([Failed to determine Xcode version.])
118      fi
119      XCODE_MAJOR_VERSION=`$ECHO $XCODE_VERSION_OUTPUT | \
120          $SED -e 's/^Xcode \(@<:@1-9@:>@@<:@0-9.@:>@*\)/\1/' | \
121          $CUT -f 1 -d .`
122      AC_MSG_NOTICE([Xcode major version: $XCODE_MAJOR_VERSION])
123      if test $XCODE_MAJOR_VERSION -ge 5; then
124          DEFAULT_TOOLCHAIN="clang"
125      else
126          DEFAULT_TOOLCHAIN="gcc"
127      fi
128    else
129      # If Xcode is not installed, but the command line tools are
130      # then we can't run xcodebuild. On these systems we should
131      # default to clang
132      DEFAULT_TOOLCHAIN="clang"
133    fi
134  else
135    # First toolchain type in the list is the default
136    DEFAULT_TOOLCHAIN=${VALID_TOOLCHAINS%% *}
137  fi
138
139  if test "x$with_toolchain_type" = xlist; then
140    # List all toolchains
141    AC_MSG_NOTICE([The following toolchains are valid on this platform:])
142    for toolchain in $VALID_TOOLCHAINS; do
143      toolchain_var_name=TOOLCHAIN_DESCRIPTION_$toolchain
144      TOOLCHAIN_DESCRIPTION=${!toolchain_var_name}
145      $PRINTF "  %-10s  %s\n" $toolchain "$TOOLCHAIN_DESCRIPTION"
146    done
147
148    exit 0
149  elif test "x$with_toolchain_type" != x; then
150    # User override; check that it is valid
151    if test "x${VALID_TOOLCHAINS/$with_toolchain_type/}" = "x${VALID_TOOLCHAINS}"; then
152      AC_MSG_NOTICE([Toolchain type $with_toolchain_type is not valid on this platform.])
153      AC_MSG_NOTICE([Valid toolchains: $VALID_TOOLCHAINS.])
154      AC_MSG_ERROR([Cannot continue.])
155    fi
156    TOOLCHAIN_TYPE=$with_toolchain_type
157  else
158    # No flag given, use default
159    TOOLCHAIN_TYPE=$DEFAULT_TOOLCHAIN
160  fi
161  AC_SUBST(TOOLCHAIN_TYPE)
162
163  TOOLCHAIN_CC_BINARY_clang="clang"
164  TOOLCHAIN_CC_BINARY_gcc="gcc"
165  TOOLCHAIN_CC_BINARY_microsoft="cl"
166  TOOLCHAIN_CC_BINARY_solstudio="cc"
167  TOOLCHAIN_CC_BINARY_xlc="xlc_r"
168
169  TOOLCHAIN_CXX_BINARY_clang="clang++"
170  TOOLCHAIN_CXX_BINARY_gcc="g++"
171  TOOLCHAIN_CXX_BINARY_microsoft="cl"
172  TOOLCHAIN_CXX_BINARY_solstudio="CC"
173  TOOLCHAIN_CXX_BINARY_xlc="xlC_r"
174
175  # Use indirect variable referencing
176  toolchain_var_name=TOOLCHAIN_DESCRIPTION_$TOOLCHAIN_TYPE
177  TOOLCHAIN_DESCRIPTION=${!toolchain_var_name}
178  toolchain_var_name=TOOLCHAIN_CC_BINARY_$TOOLCHAIN_TYPE
179  TOOLCHAIN_CC_BINARY=${!toolchain_var_name}
180  toolchain_var_name=TOOLCHAIN_CXX_BINARY_$TOOLCHAIN_TYPE
181  TOOLCHAIN_CXX_BINARY=${!toolchain_var_name}
182
183  TOOLCHAIN_SETUP_FILENAME_PATTERNS
184
185  if test "x$TOOLCHAIN_TYPE" = "x$DEFAULT_TOOLCHAIN"; then
186    AC_MSG_NOTICE([Using default toolchain $TOOLCHAIN_TYPE ($TOOLCHAIN_DESCRIPTION)])
187  else
188    AC_MSG_NOTICE([Using user selected toolchain $TOOLCHAIN_TYPE ($TOOLCHAIN_DESCRIPTION). Default toolchain is $DEFAULT_TOOLCHAIN.])
189  fi
190])
191
192# Before we start detecting the toolchain executables, we might need some
193# special setup, e.g. additional paths etc.
194AC_DEFUN_ONCE([TOOLCHAIN_PRE_DETECTION],
195[
196  # FIXME: Is this needed?
197  AC_LANG(C++)
198
199  # Store the CFLAGS etc passed to the configure script.
200  ORG_CFLAGS="$CFLAGS"
201  ORG_CXXFLAGS="$CXXFLAGS"
202
203  # autoconf magic only relies on PATH, so update it if tools dir is specified
204  OLD_PATH="$PATH"
205
206  # On Windows, we need to detect the visual studio installation first.
207  # This will change the PATH, but we need to keep that new PATH even
208  # after toolchain detection is done, since the compiler (on x86) uses
209  # it for DLL resolution in runtime.
210  if test "x$OPENJDK_BUILD_OS" = "xwindows" \
211      && test "x$TOOLCHAIN_TYPE" = "xmicrosoft"; then
212    TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV
213    # Reset path to VS_PATH. It will include everything that was on PATH at the time we
214    # ran TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV.
215    PATH="$VS_PATH"
216    # The microsoft toolchain also requires INCLUDE and LIB to be set.
217    export INCLUDE="$VS_INCLUDE"
218    export LIB="$VS_LIB"
219  else
220    # Currently we do not define this for other toolchains. This might change as the need arise.
221    TOOLCHAIN_VERSION=
222  fi
223  AC_SUBST(TOOLCHAIN_VERSION)
224
225  # For solaris we really need solaris tools, and not the GNU equivalent.
226  # The build tools on Solaris reside in /usr/ccs (C Compilation System),
227  # so add that to path before starting to probe.
228  # FIXME: This was originally only done for AS,NM,GNM,STRIP,OBJCOPY,OBJDUMP.
229  if test "x$OPENJDK_BUILD_OS" = xsolaris; then
230    PATH="/usr/ccs/bin:$PATH"
231  fi
232
233  # Finally add TOOLCHAIN_PATH at the beginning, to allow --with-tools-dir to
234  # override all other locations.
235  if test "x$TOOLCHAIN_PATH" != x; then
236    PATH=$TOOLCHAIN_PATH:$PATH
237  fi
238])
239
240# Restore path, etc
241AC_DEFUN_ONCE([TOOLCHAIN_POST_DETECTION],
242[
243  # Restore old path.
244  PATH="$OLD_PATH"
245
246  # Restore the flags to the user specified values.
247  # This is necessary since AC_PROG_CC defaults CFLAGS to "-g -O2"
248  CFLAGS="$ORG_CFLAGS"
249  CXXFLAGS="$ORG_CXXFLAGS"
250])
251
252# Check if a compiler is of the toolchain type we expect, and save the version
253# information from it. If the compiler does not match the expected type,
254# this function will abort using AC_MSG_ERROR. If it matches, the version will
255# be stored in CC_VERSION_NUMBER/CXX_VERSION_NUMBER (as a dotted number), and
256# the full version string in CC_VERSION_STRING/CXX_VERSION_STRING.
257#
258# $1 = compiler to test (CC or CXX)
259# $2 = human readable name of compiler (C or C++)
260AC_DEFUN([TOOLCHAIN_CHECK_COMPILER_VERSION],
261[
262  COMPILER=[$]$1
263  COMPILER_NAME=$2
264
265  if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
266    # cc -V output typically looks like
267    #     cc: Sun C 5.12 Linux_i386 2011/11/16
268    COMPILER_VERSION_OUTPUT=`$COMPILER -V 2>&1`
269    # Check that this is likely to be the Solaris Studio cc.
270    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "^.*: Sun $COMPILER_NAME" > /dev/null
271    if test $? -ne 0; then
272      ALT_VERSION_OUTPUT=`$COMPILER --version 2>&1`
273      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
274      AC_MSG_NOTICE([The result from running with -V was: "$COMPILER_VERSION_OUTPUT"])
275      AC_MSG_NOTICE([The result from running with --version was: "$ALT_VERSION_OUTPUT"])
276      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
277    fi
278    # Remove usage instructions (if present), and
279    # collapse compiler output into a single line
280    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT | \
281        $SED -e 's/ *@<:@Uu@:>@sage:.*//'`
282    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
283        $SED -e "s/^.*@<:@ ,\t@:>@$COMPILER_NAME@<:@ ,\t@:>@\(@<:@1-9@:>@\.@<:@0-9@:>@@<:@0-9@:>@*\).*/\1/"`
284  elif test  "x$TOOLCHAIN_TYPE" = xxlc; then
285    # xlc -qversion output typically looks like
286    #     IBM XL C/C++ for AIX, V11.1 (5724-X13)
287    #     Version: 11.01.0000.0015
288    COMPILER_VERSION_OUTPUT=`$COMPILER -qversion 2>&1`
289    # Check that this is likely to be the IBM XL C compiler.
290    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "IBM XL C" > /dev/null
291    if test $? -ne 0; then
292      ALT_VERSION_OUTPUT=`$COMPILER --version 2>&1`
293      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
294      AC_MSG_NOTICE([The result from running with -qversion was: "$COMPILER_VERSION_OUTPUT"])
295      AC_MSG_NOTICE([The result from running with --version was: "$ALT_VERSION_OUTPUT"])
296      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
297    fi
298    # Collapse compiler output into a single line
299    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
300    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
301        $SED -e 's/^.*, V\(@<:@1-9@:>@@<:@0-9.@:>@*\).*$/\1/'`
302  elif test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
303    # There is no specific version flag, but all output starts with a version string.
304    # First line typically looks something like:
305    # Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86
306    COMPILER_VERSION_OUTPUT=`$COMPILER 2>&1 | $HEAD -n 1 | $TR -d '\r'`
307    # Check that this is likely to be Microsoft CL.EXE.
308    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "Microsoft.*Compiler" > /dev/null
309    if test $? -ne 0; then
310      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
311      AC_MSG_NOTICE([The result from running it was: "$COMPILER_VERSION_OUTPUT"])
312      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
313    fi
314    # Collapse compiler output into a single line
315    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
316    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
317        $SED -e 's/^.*ersion.\(@<:@1-9@:>@@<:@0-9.@:>@*\) .*$/\1/'`
318  elif test  "x$TOOLCHAIN_TYPE" = xgcc; then
319    # gcc --version output typically looks like
320    #     gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
321    #     Copyright (C) 2013 Free Software Foundation, Inc.
322    #     This is free software; see the source for copying conditions.  There is NO
323    #     warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
324    COMPILER_VERSION_OUTPUT=`$COMPILER --version 2>&1`
325    # Check that this is likely to be GCC.
326    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "Free Software Foundation" > /dev/null
327    if test $? -ne 0; then
328      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
329      AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION"])
330      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
331    fi
332    # Remove Copyright and legalese from version string, and
333    # collapse into a single line
334    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT | \
335        $SED -e 's/ *Copyright .*//'`
336    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
337        $SED -e 's/^.* \(@<:@1-9@:>@\.@<:@0-9.@:>@*\) .*$/\1/'`
338  elif test  "x$TOOLCHAIN_TYPE" = xclang; then
339    # clang --version output typically looks like
340    #    Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
341    #    clang version 3.3 (tags/RELEASE_33/final)
342    # or
343    #    Debian clang version 3.2-7ubuntu1 (tags/RELEASE_32/final) (based on LLVM 3.2)
344    #    Target: x86_64-pc-linux-gnu
345    #    Thread model: posix
346    COMPILER_VERSION_OUTPUT=`$COMPILER --version 2>&1`
347    # Check that this is likely to be clang
348    $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "clang" > /dev/null
349    if test $? -ne 0; then
350      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required $TOOLCHAIN_TYPE compiler.])
351      AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION_OUTPUT"])
352      AC_MSG_ERROR([A $TOOLCHAIN_TYPE compiler is required. Try setting --with-tools-dir.])
353    fi
354    # Collapse compiler output into a single line
355    COMPILER_VERSION_STRING=`$ECHO $COMPILER_VERSION_OUTPUT`
356    COMPILER_VERSION_NUMBER=`$ECHO $COMPILER_VERSION_OUTPUT | \
357        $SED -e 's/^.*clang version \(@<:@1-9@:>@@<:@0-9.@:>@*\).*$/\1/'`
358  else
359      AC_MSG_ERROR([Unknown toolchain type $TOOLCHAIN_TYPE.])
360  fi
361  # This sets CC_VERSION_NUMBER or CXX_VERSION_NUMBER. (This comment is a grep marker)
362  $1_VERSION_NUMBER="$COMPILER_VERSION_NUMBER"
363  # This sets CC_VERSION_STRING or CXX_VERSION_STRING. (This comment is a grep marker)
364  $1_VERSION_STRING="$COMPILER_VERSION_STRING"
365
366  AC_MSG_NOTICE([Using $TOOLCHAIN_TYPE $COMPILER_NAME compiler version $COMPILER_VERSION_NUMBER @<:@$COMPILER_VERSION_STRING@:>@])
367])
368
369# Try to locate the given C or C++ compiler in the path, or otherwise.
370#
371# $1 = compiler to test (CC or CXX)
372# $2 = human readable name of compiler (C or C++)
373# $3 = list of compiler names to search for
374AC_DEFUN([TOOLCHAIN_FIND_COMPILER],
375[
376  COMPILER_NAME=$2
377  SEARCH_LIST="$3"
378
379  if test "x[$]$1" != x; then
380    # User has supplied compiler name already, always let that override.
381    AC_MSG_NOTICE([Will use user supplied compiler $1=[$]$1])
382    if test "x`basename [$]$1`" = "x[$]$1"; then
383      # A command without a complete path is provided, search $PATH.
384
385      AC_PATH_PROGS(POTENTIAL_$1, [$]$1)
386      if test "x$POTENTIAL_$1" != x; then
387        $1=$POTENTIAL_$1
388      else
389        AC_MSG_ERROR([User supplied compiler $1=[$]$1 could not be found])
390      fi
391    else
392      # Otherwise it might already be a complete path
393      if test ! -x "[$]$1"; then
394        AC_MSG_ERROR([User supplied compiler $1=[$]$1 does not exist])
395      fi
396    fi
397  else
398    # No user supplied value. Locate compiler ourselves.
399
400    # If we are cross compiling, assume cross compilation tools follows the
401    # cross compilation standard where they are prefixed with the autoconf
402    # standard name for the target. For example the binary
403    # i686-sun-solaris2.10-gcc will cross compile for i686-sun-solaris2.10.
404    # If we are not cross compiling, then the default compiler name will be
405    # used.
406
407    $1=
408    # If TOOLCHAIN_PATH is set, check for all compiler names in there first
409    # before checking the rest of the PATH.
410    # FIXME: Now that we prefix the TOOLS_DIR to the PATH in the PRE_DETECTION
411    # step, this should not be necessary.
412    if test -n "$TOOLCHAIN_PATH"; then
413      PATH_save="$PATH"
414      PATH="$TOOLCHAIN_PATH"
415      AC_PATH_PROGS(TOOLCHAIN_PATH_$1, $SEARCH_LIST)
416      $1=$TOOLCHAIN_PATH_$1
417      PATH="$PATH_save"
418    fi
419
420    # AC_PATH_PROGS can't be run multiple times with the same variable,
421    # so create a new name for this run.
422    if test "x[$]$1" = x; then
423      AC_PATH_PROGS(POTENTIAL_$1, $SEARCH_LIST)
424      $1=$POTENTIAL_$1
425    fi
426
427    if test "x[$]$1" = x; then
428      HELP_MSG_MISSING_DEPENDENCY([devkit])
429      AC_MSG_ERROR([Could not find a $COMPILER_NAME compiler. $HELP_MSG])
430    fi
431  fi
432
433  # Now we have a compiler binary in $1. Make sure it's okay.
434  BASIC_FIXUP_EXECUTABLE($1)
435  TEST_COMPILER="[$]$1"
436  # Don't remove symbolic links on AIX because 'xlc_r' and 'xlC_r' may all be links
437  # to 'xlc' but it is crucial that we invoke the compiler with the right name!
438  if test "x$OPENJDK_BUILD_OS" != xaix; then
439    # FIXME: This test should not be needed anymore; we don't do that for any platform.
440    AC_MSG_CHECKING([resolved symbolic links for $1])
441    BASIC_REMOVE_SYMBOLIC_LINKS(TEST_COMPILER)
442    AC_MSG_RESULT([$TEST_COMPILER])
443  fi
444  AC_MSG_CHECKING([if $1 is disguised ccache])
445
446  COMPILER_BASENAME=`$BASENAME "$TEST_COMPILER"`
447  if test "x$COMPILER_BASENAME" = "xccache"; then
448    AC_MSG_RESULT([yes, trying to find proper $COMPILER_NAME compiler])
449    # We /usr/lib/ccache in the path, so cc is a symlink to /usr/bin/ccache.
450    # We want to control ccache invocation ourselves, so ignore this cc and try
451    # searching again.
452
453    # Remove the path to the fake ccache cc from the PATH
454    RETRY_COMPILER_SAVED_PATH="$PATH"
455    COMPILER_DIRNAME=`$DIRNAME [$]$1`
456    PATH="`$ECHO $PATH | $SED -e "s,$COMPILER_DIRNAME,,g" -e "s,::,:,g" -e "s,^:,,g"`"
457
458    # Try again looking for our compiler
459    AC_CHECK_TOOLS(PROPER_COMPILER_$1, $3)
460    BASIC_FIXUP_EXECUTABLE(PROPER_COMPILER_$1)
461    PATH="$RETRY_COMPILER_SAVED_PATH"
462
463    AC_MSG_CHECKING([for resolved symbolic links for $1])
464    BASIC_REMOVE_SYMBOLIC_LINKS(PROPER_COMPILER_$1)
465    AC_MSG_RESULT([$PROPER_COMPILER_$1])
466    $1="$PROPER_COMPILER_$1"
467  else
468    AC_MSG_RESULT([no, keeping $1])
469  fi
470
471  TOOLCHAIN_CHECK_COMPILER_VERSION([$1], [$COMPILER_NAME])
472])
473
474# Detect the core components of the toolchain, i.e. the compilers (CC and CXX),
475# preprocessor (CPP and CXXCPP), the linker (LD), the assembler (AS) and the
476# archiver (AR). Verify that the compilers are correct according to the
477# toolchain type.
478AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
479[
480  #
481  # Setup the compilers (CC and CXX)
482  #
483  TOOLCHAIN_FIND_COMPILER([CC], [C], $TOOLCHAIN_CC_BINARY)
484  # Now that we have resolved CC ourself, let autoconf have its go at it
485  AC_PROG_CC([$CC])
486
487  TOOLCHAIN_FIND_COMPILER([CXX], [C++], $TOOLCHAIN_CXX_BINARY)
488  # Now that we have resolved CXX ourself, let autoconf have its go at it
489  AC_PROG_CXX([$CXX])
490
491  #
492  # Setup the preprocessor (CPP and CXXCPP)
493  #
494  AC_PROG_CPP
495  BASIC_FIXUP_EXECUTABLE(CPP)
496  AC_PROG_CXXCPP
497  BASIC_FIXUP_EXECUTABLE(CXXCPP)
498
499  #
500  # Setup the linker (LD)
501  #
502  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
503    # In the Microsoft toolchain we have a separate LD command "link".
504    # Make sure we reject /usr/bin/link (as determined in CYGWIN_LINK), which is
505    # a cygwin program for something completely different.
506    AC_CHECK_PROG([LD], [link],[link],,, [$CYGWIN_LINK])
507    BASIC_FIXUP_EXECUTABLE(LD)
508    # Verify that we indeed succeeded with this trick.
509    AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
510    "$LD" --version > /dev/null
511    if test $? -eq 0 ; then
512      AC_MSG_RESULT([no])
513      AC_MSG_ERROR([This is the Cygwin link tool. Please check your PATH and rerun configure.])
514    else
515      AC_MSG_RESULT([yes])
516    fi
517    LDCXX="$LD"
518  else
519    # All other toolchains use the compiler to link.
520    LD="$CC"
521    LDCXX="$CXX"
522  fi
523  AC_SUBST(LD)
524  # FIXME: it should be CXXLD, according to standard (cf CXXCPP)
525  AC_SUBST(LDCXX)
526
527  #
528  # Setup the assembler (AS)
529  #
530  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
531    # FIXME: should this really be solaris, or solstudio?
532    BASIC_PATH_PROGS(AS, as)
533    BASIC_FIXUP_EXECUTABLE(AS)
534  else
535    # FIXME: is this correct for microsoft?
536    AS="$CC -c"
537  fi
538  AC_SUBST(AS)
539
540  #
541  # Setup the archiver (AR)
542  #
543  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
544    # The corresponding ar tool is lib.exe (used to create static libraries)
545    AC_CHECK_PROG([AR], [lib],[lib],,,)
546  elif test "x$TOOLCHAIN_TYPE" = xgcc; then
547    BASIC_CHECK_TOOLS(AR, ar gcc-ar)
548  else
549    BASIC_CHECK_TOOLS(AR, ar)
550  fi
551  BASIC_FIXUP_EXECUTABLE(AR)
552])
553
554# Setup additional tools that is considered a part of the toolchain, but not the
555# core part. Many of these are highly platform-specific and do not exist,
556# and/or are not needed on all platforms.
557AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_EXTRA],
558[
559  if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
560    BASIC_PATH_PROGS(LIPO, lipo)
561    BASIC_FIXUP_EXECUTABLE(LIPO)
562  fi
563
564  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
565    AC_CHECK_PROG([MT], [mt], [mt],,, [/usr/bin/mt])
566    BASIC_FIXUP_EXECUTABLE(MT)
567    # Setup the resource compiler (RC)
568    AC_CHECK_PROG([RC], [rc], [rc],,, [/usr/bin/rc])
569    BASIC_FIXUP_EXECUTABLE(RC)
570    AC_CHECK_PROG([DUMPBIN], [dumpbin], [dumpbin],,,)
571    BASIC_FIXUP_EXECUTABLE(DUMPBIN)
572    # We need to check for 'msbuild.exe' because at the place where we expect to
573    # find 'msbuild.exe' there's also a directory called 'msbuild' and configure
574    # won't find the 'msbuild.exe' executable in that case (and the
575    # 'ac_executable_extensions' is unusable due to performance reasons).
576    # Notice that we intentionally don't fix up the path to MSBUILD because we
577    # will call it in a DOS shell during freetype detection on Windows (see
578    # 'LIB_SETUP_FREETYPE' in "libraries.m4"
579    AC_CHECK_PROG([MSBUILD], [msbuild.exe], [msbuild.exe],,,)
580  fi
581
582  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
583    BASIC_PATH_PROGS(STRIP, strip)
584    BASIC_FIXUP_EXECUTABLE(STRIP)
585    BASIC_PATH_PROGS(NM, nm)
586    BASIC_FIXUP_EXECUTABLE(NM)
587    BASIC_PATH_PROGS(GNM, gnm)
588    BASIC_FIXUP_EXECUTABLE(GNM)
589  elif test "x$OPENJDK_TARGET_OS" != xwindows; then
590    # FIXME: we should unify this with the solaris case above.
591    BASIC_CHECK_TOOLS(STRIP, strip)
592    BASIC_FIXUP_EXECUTABLE(STRIP)
593    if test "x$TOOLCHAIN_TYPE" = xgcc; then
594      BASIC_CHECK_TOOLS(NM, nm gcc-nm)
595    else
596      BASIC_CHECK_TOOLS(NM, nm)
597    fi
598    BASIC_FIXUP_EXECUTABLE(NM)
599    GNM="$NM"
600    AC_SUBST(GNM)
601  fi
602
603  # objcopy is used for moving debug symbols to separate files when
604  # full debug symbols are enabled.
605  if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xlinux; then
606    BASIC_CHECK_TOOLS(OBJCOPY, [gobjcopy objcopy])
607    # Only call fixup if objcopy was found.
608    if test -n "$OBJCOPY"; then
609      BASIC_FIXUP_EXECUTABLE(OBJCOPY)
610      if test "x$OPENJDK_BUILD_OS" = xsolaris; then
611        # objcopy prior to 2.21.1 on solaris is broken and is not usable.
612        # Rewrite objcopy version output to VALID_VERSION or BAD_VERSION.
613        # - version number is last blank separate word on first line
614        # - version number formats that have been seen:
615        #   - <major>.<minor>
616        #   - <major>.<minor>.<micro>
617        OBJCOPY_VERSION=`$OBJCOPY --version | $HEAD -n 1`
618        # The outer [ ] is to prevent m4 from eating the [] in the sed expression.
619        [ OBJCOPY_VERSION_CHECK=`$ECHO $OBJCOPY_VERSION | $SED -n \
620              -e 's/.* //' \
621              -e '/^[01]\./b bad' \
622              -e '/^2\./{' \
623              -e '  s/^2\.//' \
624              -e '  /^[0-9]$/b bad' \
625              -e '  /^[0-9]\./b bad' \
626              -e '  /^1[0-9]$/b bad' \
627              -e '  /^1[0-9]\./b bad' \
628              -e '  /^20\./b bad' \
629              -e '  /^21\.0$/b bad' \
630              -e '  /^21\.0\./b bad' \
631              -e '}' \
632              -e ':good' \
633              -e 's/.*/VALID_VERSION/p' \
634              -e 'q' \
635              -e ':bad' \
636              -e 's/.*/BAD_VERSION/p' \
637              -e 'q'` ]
638        if test "x$OBJCOPY_VERSION_CHECK" = xBAD_VERSION; then
639          OBJCOPY=
640          AC_MSG_WARN([Ignoring found objcopy since it is broken (prior to 2.21.1). No debug symbols will be generated.])
641          AC_MSG_NOTICE([objcopy reports version $OBJCOPY_VERSION])
642          AC_MSG_NOTICE([Note: patch 149063-01 or newer contains the correct Solaris 10 SPARC version])
643          AC_MSG_NOTICE([Note: patch 149064-01 or newer contains the correct Solaris 10 X86 version])
644          AC_MSG_NOTICE([Note: Solaris 11 Update 1 contains the correct version])
645        fi
646      fi
647    fi
648  fi
649
650  BASIC_CHECK_TOOLS(OBJDUMP, [gobjdump objdump])
651  if test "x$OBJDUMP" != x; then
652    # Only used for compare.sh; we can live without it. BASIC_FIXUP_EXECUTABLE
653    # bails if argument is missing.
654    BASIC_FIXUP_EXECUTABLE(OBJDUMP)
655  fi
656])
657
658# Setup the build tools (i.e, the compiler and linker used to build programs
659# that should be run on the build platform, not the target platform, as a build
660# helper). Since the non-cross-compile case uses the normal, target compilers
661# for this, we can only do this after these have been setup.
662AC_DEFUN_ONCE([TOOLCHAIN_SETUP_BUILD_COMPILERS],
663[
664  if test "x$COMPILE_TYPE" = "xcross"; then
665    # Now we need to find a C/C++ compiler that can build executables for the
666    # build platform. We can't use the AC_PROG_CC macro, since it can only be
667    # used once. Also, we need to do this without adding a tools dir to the
668    # path, otherwise we might pick up cross-compilers which don't use standard
669    # naming.
670
671    OLDPATH="$PATH"
672
673    AC_ARG_WITH(build-devkit, [AS_HELP_STRING([--with-build-devkit],
674        [Devkit to use for the build platform toolchain])])
675    if test "x$with_build_devkit" = "xyes"; then
676      AC_MSG_ERROR([--with-build-devkit must have a value])
677    elif test -n "$with_build_devkit"; then
678      if test ! -d "$with_build_devkit"; then
679        AC_MSG_ERROR([--with-build-devkit points to non existing dir: $with_build_devkit])
680      else
681        BASIC_FIXUP_PATH([with_build_devkit])
682        BUILD_DEVKIT_ROOT="$with_build_devkit"
683        # Check for a meta data info file in the root of the devkit
684        if test -f "$BUILD_DEVKIT_ROOT/devkit.info"; then
685          # Process devkit.info so that existing devkit variables are not
686          # modified by this
687          $SED -e "s/^DEVKIT_/BUILD_DEVKIT_/g" \
688              -e "s/\$DEVKIT_ROOT/\$BUILD_DEVKIT_ROOT/g" \
689              -e "s/\$host/\$build/g" \
690              $BUILD_DEVKIT_ROOT/devkit.info \
691              > $CONFIGURESUPPORT_OUTPUTDIR/build-devkit.info
692          . $CONFIGURESUPPORT_OUTPUTDIR/build-devkit.info
693          # This potentially sets the following:
694          # A descriptive name of the devkit
695          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_NAME])
696          # Corresponds to --with-extra-path
697          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_EXTRA_PATH])
698          # Corresponds to --with-toolchain-path
699          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_TOOLCHAIN_PATH])
700          # Corresponds to --with-sysroot
701          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_SYSROOT])
702          # Skip the Window specific parts
703        fi
704
705        AC_MSG_CHECKING([for build platform devkit])
706        if test "x$BUILD_DEVKIT_NAME" != x; then
707          AC_MSG_RESULT([$BUILD_DEVKIT_NAME in $BUILD_DEVKIT_ROOT])
708        else
709          AC_MSG_RESULT([$BUILD_DEVKIT_ROOT])
710        fi
711
712        BUILD_SYSROOT="$BUILD_DEVKIT_SYSROOT"
713        FLAGS_SETUP_SYSROOT_FLAGS([BUILD_])
714
715         # Fallback default of just /bin if DEVKIT_PATH is not defined
716        if test "x$BUILD_DEVKIT_TOOLCHAIN_PATH" = x; then
717          BUILD_DEVKIT_TOOLCHAIN_PATH="$BUILD_DEVKIT_ROOT/bin"
718        fi
719        PATH="$BUILD_DEVKIT_TOOLCHAIN_PATH:$BUILD_DEVKIT_EXTRA_PATH"
720      fi
721    fi
722
723    # FIXME: we should list the discovered compilers as an exclude pattern!
724    # If we do that, we can do this detection before POST_DETECTION, and still
725    # find the build compilers in the tools dir, if needed.
726    BASIC_REQUIRE_PROGS(BUILD_CC, [cl cc gcc])
727    BASIC_FIXUP_EXECUTABLE(BUILD_CC)
728    BASIC_REQUIRE_PROGS(BUILD_CXX, [cl CC g++])
729    BASIC_FIXUP_EXECUTABLE(BUILD_CXX)
730    BASIC_PATH_PROGS(BUILD_NM, nm gcc-nm)
731    BASIC_FIXUP_EXECUTABLE(BUILD_NM)
732    BASIC_PATH_PROGS(BUILD_AR, ar gcc-ar)
733    BASIC_FIXUP_EXECUTABLE(BUILD_AR)
734    # Assume the C compiler is the assembler
735    BUILD_AS="$BUILD_CC -c"
736    # Just like for the target compiler, use the compiler as linker
737    BUILD_LD="$BUILD_CC"
738    BUILD_LDCXX="$BUILD_CXX"
739
740    PATH="$OLDPATH"
741  else
742    # If we are not cross compiling, use the normal target compilers for
743    # building the build platform executables.
744    BUILD_CC="$CC"
745    BUILD_CXX="$CXX"
746    BUILD_LD="$LD"
747    BUILD_LDCXX="$LDCXX"
748    BUILD_NM="$NM"
749    BUILD_AS="$AS"
750    BUILD_SYSROOT_CFLAGS="$SYSROOT_CFLAGS"
751    BUILD_SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS"
752    BUILD_AR="$AR"
753  fi
754
755  AC_SUBST(BUILD_CC)
756  AC_SUBST(BUILD_CXX)
757  AC_SUBST(BUILD_LD)
758  AC_SUBST(BUILD_LDCXX)
759  AC_SUBST(BUILD_NM)
760  AC_SUBST(BUILD_AS)
761  AC_SUBST(BUILD_SYSROOT_CFLAGS)
762  AC_SUBST(BUILD_SYSROOT_LDFLAGS)
763  AC_SUBST(BUILD_AR)
764])
765
766# Setup legacy variables that are still needed as alternative ways to refer to
767# parts of the toolchain.
768AC_DEFUN_ONCE([TOOLCHAIN_SETUP_LEGACY],
769[
770  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
771    # For hotspot, we need these in Windows mixed path,
772    # so rewrite them all. Need added .exe suffix.
773    HOTSPOT_CXX="$CXX.exe"
774    HOTSPOT_LD="$LD.exe"
775    HOTSPOT_MT="$MT.exe"
776    HOTSPOT_RC="$RC.exe"
777    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_CXX)
778    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_LD)
779    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_MT)
780    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_RC)
781    AC_SUBST(HOTSPOT_MT)
782    AC_SUBST(HOTSPOT_RC)
783  else
784    HOTSPOT_CXX="$CXX"
785    HOTSPOT_LD="$LD"
786  fi
787  AC_SUBST(HOTSPOT_CXX)
788  AC_SUBST(HOTSPOT_LD)
789
790  if test  "x$TOOLCHAIN_TYPE" = xclang; then
791    USE_CLANG=true
792  fi
793  AC_SUBST(USE_CLANG)
794])
795
796# Do some additional checks on the detected tools.
797AC_DEFUN_ONCE([TOOLCHAIN_MISC_CHECKS],
798[
799  # The package path is used only on macosx?
800  # FIXME: clean this up, and/or move it elsewhere.
801  PACKAGE_PATH=/opt/local
802  AC_SUBST(PACKAGE_PATH)
803
804  # Check for extra potential brokenness.
805  if test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
806    # On Windows, double-check that we got the right compiler.
807    CC_VERSION_OUTPUT=`$CC 2>&1 | $HEAD -n 1 | $TR -d '\r'`
808    COMPILER_CPU_TEST=`$ECHO $CC_VERSION_OUTPUT | $SED -n "s/^.* \(.*\)$/\1/p"`
809    if test "x$OPENJDK_TARGET_CPU" = "xx86"; then
810      if test "x$COMPILER_CPU_TEST" != "x80x86" -a "x$COMPILER_CPU_TEST" != "xx86"; then
811        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "80x86" or "x86".])
812      fi
813    elif test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
814      if test "x$COMPILER_CPU_TEST" != "xx64"; then
815        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "x64".])
816      fi
817    fi
818  fi
819
820  if test "x$TOOLCHAIN_TYPE" = xgcc; then
821    # If this is a --hash-style=gnu system, use --hash-style=both, why?
822    HAS_GNU_HASH=`$CC -dumpspecs 2>/dev/null | $GREP 'hash-style=gnu'`
823    # This is later checked when setting flags.
824
825    # "-Og" suppported for GCC 4.8 and later
826    CFLAG_OPTIMIZE_DEBUG_FLAG="-Og"
827    FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$CFLAG_OPTIMIZE_DEBUG_FLAG],
828      IF_TRUE: [HAS_CFLAG_OPTIMIZE_DEBUG=true],
829      IF_FALSE: [HAS_CFLAG_OPTIMIZE_DEBUG=false])
830
831    # "-z relro" supported in GNU binutils 2.17 and later
832    LINKER_RELRO_FLAG="-Wl,-z,relro"
833    FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [$LINKER_RELRO_FLAG],
834      IF_TRUE: [HAS_LINKER_RELRO=true],
835      IF_FALSE: [HAS_LINKER_RELRO=false])
836
837    # "-z now" supported in GNU binutils 2.11 and later
838    LINKER_NOW_FLAG="-Wl,-z,now"
839    FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [$LINKER_NOW_FLAG],
840      IF_TRUE: [HAS_LINKER_NOW=true],
841      IF_FALSE: [HAS_LINKER_NOW=false])
842  fi
843
844  # Check for broken SuSE 'ld' for which 'Only anonymous version tag is allowed
845  # in executable.'
846  USING_BROKEN_SUSE_LD=no
847  if test "x$OPENJDK_TARGET_OS" = xlinux && test "x$TOOLCHAIN_TYPE" = xgcc; then
848    AC_MSG_CHECKING([for broken SuSE 'ld' which only understands anonymous version tags in executables])
849    $ECHO "SUNWprivate_1.1 { local: *; };" > version-script.map
850    $ECHO "int main() { }" > main.c
851    if $CXX -Wl,-version-script=version-script.map main.c 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then
852      AC_MSG_RESULT(no)
853      USING_BROKEN_SUSE_LD=no
854    else
855      AC_MSG_RESULT(yes)
856      USING_BROKEN_SUSE_LD=yes
857    fi
858    rm -rf version-script.map main.c a.out
859  fi
860  AC_SUBST(USING_BROKEN_SUSE_LD)
861])
862
863# Setup the JTReg Regression Test Harness.
864AC_DEFUN_ONCE([TOOLCHAIN_SETUP_JTREG],
865[
866  AC_ARG_WITH(jtreg, [AS_HELP_STRING([--with-jtreg],
867      [Regression Test Harness @<:@probed@:>@])],
868      [],
869      [with_jtreg=no])
870
871  if test "x$with_jtreg" = xno; then
872    # jtreg disabled
873    AC_MSG_CHECKING([for jtreg])
874    AC_MSG_RESULT(no)
875  else
876    if test "x$with_jtreg" != xyes; then
877      # with path specified.
878      JT_HOME="$with_jtreg"
879    fi
880
881    if test "x$JT_HOME" != x; then
882      AC_MSG_CHECKING([for jtreg])
883
884      # use JT_HOME enviroment var.
885      BASIC_FIXUP_PATH([JT_HOME])
886
887      # jtreg win32 script works for everybody
888      JTREGEXE="$JT_HOME/bin/jtreg"
889
890      if test ! -f "$JTREGEXE"; then
891        AC_MSG_ERROR([JTReg executable does not exist: $JTREGEXE])
892      fi
893
894      AC_MSG_RESULT($JTREGEXE)
895    else
896      # try to find jtreg on path
897      BASIC_REQUIRE_PROGS(JTREGEXE, jtreg)
898      JT_HOME="`$DIRNAME $JTREGEXE`"
899    fi
900  fi
901
902  AC_SUBST(JT_HOME)
903  AC_SUBST(JTREGEXE)
904])
905