toolchain.m4 revision 492:e64f2cb57d05
1#
2# Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
3# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4#
5# This code is free software; you can redistribute it and/or modify it
6# under the terms of the GNU General Public License version 2 only, as
7# published by the Free Software Foundation.  Oracle designates this
8# particular file as subject to the "Classpath" exception as provided
9# by Oracle in the LICENSE file that accompanied this code.
10#
11# This code is distributed in the hope that it will be useful, but WITHOUT
12# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14# version 2 for more details (a copy is included in the LICENSE file that
15# accompanied this code).
16#
17# You should have received a copy of the GNU General Public License version
18# 2 along with this work; if not, write to the Free Software Foundation,
19# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20#
21# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22# or visit www.oracle.com if you need additional information or have any
23# questions.
24#
25
26# $1 = compiler to test (CC or CXX)
27# $2 = human readable name of compiler (C or C++)
28AC_DEFUN([TOOLCHAIN_CHECK_COMPILER_VERSION],
29[
30  COMPILER=[$]$1
31  COMPILER_NAME=$2
32
33  if test "x$OPENJDK_TARGET_OS" = xsolaris; then
34    # Make sure we use the Sun Studio compiler and not gcc on Solaris, which won't work
35    COMPILER_VERSION_TEST=`$COMPILER -V 2>&1 | $HEAD -n 1`
36    $ECHO $COMPILER_VERSION_TEST | $GREP "^.*: Sun $COMPILER_NAME" > /dev/null
37    if test $? -ne 0; then
38      GCC_VERSION_TEST=`$COMPILER --version 2>&1 | $HEAD -n 1`
39      
40      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required Sun Studio compiler.])
41      AC_MSG_NOTICE([The result from running with -V was: "$COMPILER_VERSION_TEST" and with --version: "$GCC_VERSION_TEST"])
42      AC_MSG_ERROR([Sun Studio compiler is required. Try setting --with-tools-dir.])
43    else
44      COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.*@<:@ ,\t@:>@$COMPILER_NAME@<:@ ,\t@:>@\(@<:@1-9@:>@\.@<:@0-9@:>@@<:@0-9@:>@*\).*/\1/p"`
45      COMPILER_VENDOR="Sun Studio"
46    fi
47  elif test  "x$OPENJDK_TARGET_OS" = xwindows; then
48    # First line typically looks something like:
49    # Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.30319.01 for 80x86
50    COMPILER_VERSION_TEST=`$COMPILER 2>&1 | $HEAD -n 1`
51    COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.*Version \(@<:@1-9@:>@@<:@0-9.@:>@*\) .*/\1/p"`
52    COMPILER_VENDOR="Microsoft CL.EXE"
53    COMPILER_CPU_TEST=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.* for \(.*\)$/\1/p"`
54    if test "x$OPENJDK_TARGET_CPU" = "xx86"; then
55      if test "x$COMPILER_CPU_TEST" != "x80x86"; then
56        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "80x86".])
57      fi
58    elif test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
59      if test "x$COMPILER_CPU_TEST" != "xx64"; then
60        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "x64".])
61      fi
62    fi
63  else
64    COMPILER_VERSION_TEST=`$COMPILER --version 2>&1 | $HEAD -n 1`
65    # Check that this is likely to be GCC.
66    $COMPILER --version 2>&1 | $GREP "Free Software Foundation" > /dev/null
67    if test $? -ne 0; then
68      AC_MSG_NOTICE([The $COMPILER_NAME compiler (located as $COMPILER) does not seem to be the required GCC compiler.])
69      AC_MSG_NOTICE([The result from running with --version was: "$COMPILER_VERSION_TEST"])
70      AC_MSG_ERROR([GCC compiler is required. Try setting --with-tools-dir.])
71    fi
72    
73    # First line typically looks something like:
74    # gcc (Ubuntu/Linaro 4.5.2-8ubuntu4) 4.5.2
75    COMPILER_VERSION=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^.* \(@<:@1-9@:>@@<:@0-9.@:>@*\)/\1/p"`
76    COMPILER_VENDOR=`$ECHO $COMPILER_VERSION_TEST | $SED -n "s/^\(.*\) @<:@1-9@:>@@<:@0-9.@:>@*/\1/p"`
77  fi
78  # This sets CC_VERSION or CXX_VERSION. (This comment is a grep marker)
79  $1_VERSION="$COMPILER_VERSION"
80  # This sets CC_VENDOR or CXX_VENDOR. (This comment is a grep marker)
81  $1_VENDOR="$COMPILER_VENDOR"
82
83  AC_MSG_NOTICE([Using $COMPILER_VENDOR $COMPILER_NAME compiler version $COMPILER_VERSION (located at $COMPILER)])
84])
85
86
87AC_DEFUN_ONCE([TOOLCHAIN_SETUP_SYSROOT_AND_OUT_OPTIONS],
88[
89###############################################################################
90#
91# Configure the development tool paths and potential sysroot.
92#
93AC_LANG(C++)
94
95# The option used to specify the target .o,.a or .so file.
96# When compiling, how to specify the to be created object file.
97CC_OUT_OPTION='-o$(SPACE)'
98# When linking, how to specify the to be created executable.
99EXE_OUT_OPTION='-o$(SPACE)'
100# When linking, how to specify the to be created dynamically linkable library.
101LD_OUT_OPTION='-o$(SPACE)'
102# When archiving, how to specify the to be create static archive for object files.
103AR_OUT_OPTION='rcs$(SPACE)'
104AC_SUBST(CC_OUT_OPTION)
105AC_SUBST(EXE_OUT_OPTION)
106AC_SUBST(LD_OUT_OPTION)
107AC_SUBST(AR_OUT_OPTION)
108])
109
110# $1 = compiler to test (CC or CXX)
111# $2 = human readable name of compiler (C or C++)
112# $3 = list of compiler names to search for
113AC_DEFUN([TOOLCHAIN_FIND_COMPILER],
114[
115  COMPILER_NAME=$2
116
117  # Do a first initial attempt at searching the list of compiler names.
118  # AC_PATH_PROGS can't be run multiple times with the same variable,
119  # so create a new name for this run.
120  AC_PATH_PROGS(POTENTIAL_$1, $3)
121  $1=$POTENTIAL_$1
122
123  if test "x$[$]$1" = x; then
124      HELP_MSG_MISSING_DEPENDENCY([devkit])
125      AC_MSG_ERROR([Could not find a $COMPILER_NAME compiler. $HELP_MSG])
126  fi
127  BASIC_FIXUP_EXECUTABLE($1)
128  AC_MSG_CHECKING([resolved symbolic links for $1])
129  TEST_COMPILER="[$]$1"
130  BASIC_REMOVE_SYMBOLIC_LINKS(TEST_COMPILER)
131  AC_MSG_RESULT([$TEST_COMPILER])
132  AC_MSG_CHECKING([if $1 is disguised ccache])
133  
134  COMPILER_BASENAME=`$BASENAME "$TEST_COMPILER"`
135  if test "x$COMPILER_BASENAME" = "xccache"; then
136    AC_MSG_RESULT([yes, trying to find proper $COMPILER_NAME compiler])
137    # We /usr/lib/ccache in the path, so cc is a symlink to /usr/bin/ccache.
138    # We want to control ccache invocation ourselves, so ignore this cc and try
139    # searching again.
140
141    # Remove the path to the fake ccache cc from the PATH
142    RETRY_COMPILER_SAVED_PATH="$PATH"
143    COMPILER_DIRNAME=`$DIRNAME [$]$1`
144    PATH="`$ECHO $PATH | $SED -e "s,$COMPILER_DIRNAME,,g" -e "s,::,:,g" -e "s,^:,,g"`"
145
146    # Try again looking for our compiler
147    AC_CHECK_TOOLS(PROPER_COMPILER_$1, $3)
148    BASIC_FIXUP_EXECUTABLE(PROPER_COMPILER_$1)
149    PATH="$RETRY_COMPILER_SAVED_PATH"
150
151    AC_MSG_CHECKING([for resolved symbolic links for $1])
152    BASIC_REMOVE_SYMBOLIC_LINKS(PROPER_COMPILER_$1)
153    AC_MSG_RESULT([$PROPER_COMPILER_$1])
154    $1="$PROPER_COMPILER_$1"
155  else
156    AC_MSG_RESULT([no, keeping $1])
157    $1="$TEST_COMPILER"
158  fi
159  TOOLCHAIN_CHECK_COMPILER_VERSION([$1], [$COMPILER_NAME])
160])
161
162
163AC_DEFUN([TOOLCHAIN_SETUP_PATHS],
164[
165if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
166  TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV
167fi
168
169AC_SUBST(MSVCR_DLL)
170
171# If --build AND --host is set, then the configure script will find any
172# cross compilation tools in the PATH. Cross compilation tools
173# follows the cross compilation standard where they are prefixed with ${host}.
174# For example the binary i686-sun-solaris2.10-gcc
175# will cross compile for i686-sun-solaris2.10
176# If neither of build and host is not set, then build=host and the
177# default compiler found in the path will be used.
178# Setting only --host, does not seem to be really supported.
179# Please set both --build and --host if you want to cross compile.
180
181if test "x$COMPILE_TYPE" = "xcross"; then
182    # Now we to find a C/C++ compiler that can build executables for the build
183    # platform. We can't use the AC_PROG_CC macro, since it can only be used
184    # once. Also, we need to do this before adding a tools dir to the path,
185    # otherwise we might pick up cross-compilers which don't use standard naming.
186    # Otherwise, we'll set the BUILD_tools to the native tools, but that'll have
187    # to wait until they are properly discovered.
188    AC_PATH_PROGS(BUILD_CC, [cl cc gcc])
189    BASIC_FIXUP_EXECUTABLE(BUILD_CC)
190    AC_PATH_PROGS(BUILD_CXX, [cl CC g++])
191    BASIC_FIXUP_EXECUTABLE(BUILD_CXX)
192    AC_PATH_PROG(BUILD_LD, ld)
193    BASIC_FIXUP_EXECUTABLE(BUILD_LD)
194fi
195AC_SUBST(BUILD_CC)
196AC_SUBST(BUILD_CXX)
197AC_SUBST(BUILD_LD)
198
199# If a devkit is found on the builddeps server, then prepend its path to the
200# PATH variable. If there are cross compilers available in the devkit, these
201# will be found by AC_PROG_CC et al.
202DEVKIT=
203BDEPS_CHECK_MODULE(DEVKIT, devkit, xxx,
204                    [# Found devkit
205                     PATH="$DEVKIT/bin:$PATH"
206                     SYS_ROOT="$DEVKIT/${rewritten_target}/sys-root"
207                     if test "x$x_includes" = "xNONE"; then
208                         x_includes="$SYS_ROOT/usr/include/X11"
209                     fi
210                     if test "x$x_libraries" = "xNONE"; then
211                         x_libraries="$SYS_ROOT/usr/lib"
212                     fi
213                    ],
214                    [])
215
216if test "x$SYS_ROOT" != "x/" ; then                    
217    CFLAGS="--sysroot=$SYS_ROOT $CFLAGS"
218    CXXFLAGS="--sysroot=$SYS_ROOT $CXXFLAGS"
219    OBJCFLAGS="--sysroot=$SYS_ROOT $OBJCFLAGS" 
220    OBJCXXFLAGS="--sysroot=$SYS_ROOT $OBJCFLAGS" 
221    CPPFLAGS="--sysroot=$SYS_ROOT $CPPFLAGS"
222    LDFLAGS="--sysroot=$SYS_ROOT $LDFLAGS"
223fi
224
225# Store the CFLAGS etal passed to the configure script.
226ORG_CFLAGS="$CFLAGS"
227ORG_CXXFLAGS="$CXXFLAGS"
228ORG_OBJCFLAGS="$OBJCFLAGS"
229
230# autoconf magic only relies on PATH, so update it if tools dir is specified
231OLD_PATH="$PATH"
232if test "x$TOOLS_DIR" != x; then
233  PATH=$TOOLS_DIR:$PATH
234fi
235
236
237### Locate C compiler (CC)
238
239# gcc is almost always present, but on Windows we
240# prefer cl.exe and on Solaris we prefer CC.
241# Thus test for them in this order.
242if test "x$OPENJDK_TARGET_OS" = xmacosx; then
243  # Do not probe for cc on MacOSX.
244  COMPILER_CHECK_LIST="cl gcc"
245else
246  COMPILER_CHECK_LIST="cl cc gcc"
247fi
248
249TOOLCHAIN_FIND_COMPILER([CC],[C],[$COMPILER_CHECK_LIST])
250# Now that we have resolved CC ourself, let autoconf have it's go at it
251AC_PROG_CC([$CC])
252
253### Locate C++ compiler (CXX)
254
255if test "x$OPENJDK_TARGET_OS" = xmacosx; then
256  # Do not probe for CC on MacOSX.
257  COMPILER_CHECK_LIST="cl g++"
258else
259  COMPILER_CHECK_LIST="cl CC g++"
260fi
261TOOLCHAIN_FIND_COMPILER([CXX],[C++],[$COMPILER_CHECK_LIST])
262# Now that we have resolved CXX ourself, let autoconf have it's go at it
263AC_PROG_CXX([$CXX])
264
265### Locate other tools
266
267if test "x$OPENJDK_TARGET_OS" != xwindows; then
268    AC_PROG_OBJC
269    BASIC_FIXUP_EXECUTABLE(OBJC)
270else
271    OBJC=
272fi
273
274# Restore the flags to the user specified values.
275# This is necessary since AC_PROG_CC defaults CFLAGS to "-g -O2"
276CFLAGS="$ORG_CFLAGS"
277CXXFLAGS="$ORG_CXXFLAGS"
278OBJCFLAGS="$ORG_OBJCFLAGS"
279
280LD="$CC"
281LDEXE="$CC"
282LDCXX="$CXX"
283LDEXECXX="$CXX"
284AC_SUBST(LD)
285# LDEXE is the linker to use, when creating executables.
286AC_SUBST(LDEXE)
287# Linking C++ libraries.
288AC_SUBST(LDCXX)
289# Linking C++ executables.
290AC_SUBST(LDEXECXX)
291
292if test "x$OPENJDK_TARGET_OS" != xwindows; then
293    AC_CHECK_TOOL(AR, ar)
294    BASIC_FIXUP_EXECUTABLE(AR)
295fi
296if test "x$OPENJDK_TARGET_OS" = xmacosx; then
297    ARFLAGS="-r"
298else
299    ARFLAGS=""
300fi
301AC_SUBST(ARFLAGS)
302
303# For hotspot, we need these in Windows mixed path; other platforms keep them the same
304HOTSPOT_CXX="$CXX"
305HOTSPOT_LD="$LD"
306AC_SUBST(HOTSPOT_CXX)
307AC_SUBST(HOTSPOT_LD)
308
309COMPILER_NAME=gcc
310COMPILER_TYPE=CC
311AS_IF([test "x$OPENJDK_TARGET_OS" = xwindows], [
312    # For now, assume that we are always compiling using cl.exe. 
313    CC_OUT_OPTION=-Fo
314    EXE_OUT_OPTION=-out:
315    LD_OUT_OPTION=-out:
316    AR_OUT_OPTION=-out:
317    # On Windows, reject /usr/bin/link (as determined in CYGWIN_LINK), which is a cygwin
318    # program for something completely different.
319    AC_CHECK_PROG([WINLD], [link],[link],,, [$CYGWIN_LINK])
320    # Since we must ignore the first found link, WINLD will contain
321    # the full path to the link.exe program.
322    BASIC_FIXUP_EXECUTABLE(WINLD)
323    printf "Windows linker was found at $WINLD\n"
324    AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
325    "$WINLD" --version > /dev/null
326    if test $? -eq 0 ; then
327      AC_MSG_RESULT([no])
328      AC_MSG_ERROR([This is the Cygwin link tool. Please check your PATH and rerun configure.])
329    else
330      AC_MSG_RESULT([yes])
331    fi
332    LD="$WINLD"
333    LDEXE="$WINLD"
334    LDCXX="$WINLD"
335    LDEXECXX="$WINLD"
336
337    AC_CHECK_PROG([MT], [mt], [mt],,, [/usr/bin/mt])
338    BASIC_FIXUP_EXECUTABLE(MT)
339    # The resource compiler
340    AC_CHECK_PROG([RC], [rc], [rc],,, [/usr/bin/rc])
341    BASIC_FIXUP_EXECUTABLE(RC)
342
343    # For hotspot, we need these in Windows mixed path,
344    # so rewrite them all. Need added .exe suffix.
345    HOTSPOT_CXX="$CXX.exe"
346    HOTSPOT_LD="$LD.exe"
347    HOTSPOT_MT="$MT.exe"
348    HOTSPOT_RC="$RC.exe"
349    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_CXX)
350    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_LD)
351    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_MT)
352    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(HOTSPOT_RC)
353    AC_SUBST(HOTSPOT_MT)
354    AC_SUBST(HOTSPOT_RC)
355
356    RC_FLAGS="-nologo -l 0x409 -r"
357    AS_IF([test "x$VARIANT" = xOPT], [
358        RC_FLAGS="$RC_FLAGS -d NDEBUG"
359    ])
360    JDK_UPDATE_VERSION_NOTNULL=$JDK_UPDATE_VERSION
361    AS_IF([test "x$JDK_UPDATE_VERSION" = x], [
362        JDK_UPDATE_VERSION_NOTNULL=0
363    ])
364    RC_FLAGS="$RC_FLAGS -d \"JDK_BUILD_ID=$FULL_VERSION\""
365    RC_FLAGS="$RC_FLAGS -d \"JDK_COMPANY=$COMPANY_NAME\""
366    RC_FLAGS="$RC_FLAGS -d \"JDK_COMPONENT=$PRODUCT_NAME $JDK_RC_PLATFORM_NAME binary\""
367    RC_FLAGS="$RC_FLAGS -d \"JDK_VER=$JDK_MINOR_VERSION.$JDK_MICRO_VERSION.$JDK_UPDATE_VERSION_NOTNULL.$COOKED_BUILD_NUMBER\""
368    RC_FLAGS="$RC_FLAGS -d \"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\""
369    RC_FLAGS="$RC_FLAGS -d \"JDK_NAME=$PRODUCT_NAME $JDK_RC_PLATFORM_NAME $JDK_MINOR_VERSION $JDK_UPDATE_META_TAG\""
370    RC_FLAGS="$RC_FLAGS -d \"JDK_FVER=$JDK_MINOR_VERSION,$JDK_MICRO_VERSION,$JDK_UPDATE_VERSION_NOTNULL,$COOKED_BUILD_NUMBER\""
371
372    # lib.exe is used to create static libraries.
373    AC_CHECK_PROG([WINAR], [lib],[lib],,,)
374    BASIC_FIXUP_EXECUTABLE(WINAR)
375    AR="$WINAR"
376    ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"
377
378    AC_CHECK_PROG([DUMPBIN], [dumpbin], [dumpbin],,,)
379    BASIC_FIXUP_EXECUTABLE(DUMPBIN)
380
381    COMPILER_TYPE=CL
382    CCXXFLAGS="$CCXXFLAGS -nologo"
383])
384AC_SUBST(RC_FLAGS)
385AC_SUBST(COMPILER_TYPE)
386
387AC_PROG_CPP
388BASIC_FIXUP_EXECUTABLE(CPP)
389
390AC_PROG_CXXCPP
391BASIC_FIXUP_EXECUTABLE(CXXCPP)
392
393if test "x$COMPILE_TYPE" != "xcross"; then
394    # If we are not cross compiling, use the same compilers for
395    # building the build platform executables. The cross-compilation
396    # case needed to be done earlier, but this can only be done after
397    # the native tools have been localized.
398    BUILD_CC="$CC"
399    BUILD_CXX="$CXX"
400    BUILD_LD="$LD"
401fi
402
403# for solaris we really need solaris tools, and not gnu equivalent
404#   these seems to normally reside in /usr/ccs/bin so add that to path before
405#   starting to probe
406#
407#   NOTE: I add this /usr/ccs/bin after TOOLS but before OLD_PATH
408#         so that it can be overriden --with-tools-dir
409if test "x$OPENJDK_BUILD_OS" = xsolaris; then
410    PATH="${TOOLS_DIR}:/usr/ccs/bin:${OLD_PATH}"
411fi
412
413# Find the right assembler.
414if test "x$OPENJDK_TARGET_OS" = xsolaris; then
415    AC_PATH_PROG(AS, as)
416    BASIC_FIXUP_EXECUTABLE(AS)
417else
418    AS="$CC -c"
419fi
420AC_SUBST(AS)
421
422if test "x$OPENJDK_TARGET_OS" = xsolaris; then
423    AC_PATH_PROGS(NM, [gnm nm])
424    BASIC_FIXUP_EXECUTABLE(NM)
425    AC_PATH_PROG(STRIP, strip)
426    BASIC_FIXUP_EXECUTABLE(STRIP)
427    AC_PATH_PROG(MCS, mcs)
428    BASIC_FIXUP_EXECUTABLE(MCS)
429elif test "x$OPENJDK_TARGET_OS" != xwindows; then
430    AC_CHECK_TOOL(NM, nm)
431    BASIC_FIXUP_EXECUTABLE(NM)
432    AC_CHECK_TOOL(STRIP, strip)
433    BASIC_FIXUP_EXECUTABLE(STRIP)
434fi
435
436# objcopy is used for moving debug symbols to separate files when
437# full debug symbols are enabled.
438if test "x$OPENJDK_TARGET_OS" = xsolaris || test "x$OPENJDK_TARGET_OS" = xlinux; then
439    AC_CHECK_TOOLS(OBJCOPY, [gobjcopy objcopy])
440    BASIC_FIXUP_EXECUTABLE(OBJCOPY)
441fi
442
443AC_CHECK_TOOLS(OBJDUMP, [gobjdump objdump])
444if test "x$OBJDUMP" != x; then
445  # Only used for compare.sh; we can live without it. BASIC_FIXUP_EXECUTABLE bails if argument is missing.
446  BASIC_FIXUP_EXECUTABLE(OBJDUMP)
447fi
448
449if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
450   AC_PATH_PROG(LIPO, lipo)
451   BASIC_FIXUP_EXECUTABLE(LIPO)
452fi
453
454# Restore old path without tools dir
455PATH="$OLD_PATH"
456])
457
458
459AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_FOR_LIBS],
460[
461
462###############################################################################
463#
464# How to compile shared libraries. 
465#
466
467if test "x$GCC" = xyes; then
468    COMPILER_NAME=gcc
469    PICFLAG="-fPIC"
470    LIBRARY_PREFIX=lib
471    SHARED_LIBRARY='lib[$]1.so'
472    STATIC_LIBRARY='lib[$]1.a'
473    SHARED_LIBRARY_FLAGS="-shared"
474    SHARED_LIBRARY_SUFFIX='.so'
475    STATIC_LIBRARY_SUFFIX='.a'
476    OBJ_SUFFIX='.o'
477    EXE_SUFFIX=''
478    SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
479    SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
480    C_FLAG_REORDER=''
481    CXX_FLAG_REORDER=''
482    SET_SHARED_LIBRARY_ORIGIN='-Xlinker -z -Xlinker origin -Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
483    SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
484    LD="$CC"
485    LDEXE="$CC"
486    LDCXX="$CXX"
487    LDEXECXX="$CXX"
488    POST_STRIP_CMD="$STRIP -g"
489
490    # Linking is different on MacOSX
491    if test "x$OPENJDK_TARGET_OS" = xmacosx; then
492        # Might change in the future to clang.
493        COMPILER_NAME=gcc
494        SHARED_LIBRARY='lib[$]1.dylib'
495        SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
496        SHARED_LIBRARY_SUFFIX='.dylib'
497        EXE_SUFFIX=''
498        SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1' 
499        SET_SHARED_LIBRARY_MAPFILE=''
500        SET_SHARED_LIBRARY_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
501        SET_EXECUTABLE_ORIGIN="$SET_SHARED_LIBRARY_ORIGIN"
502        POST_STRIP_CMD="$STRIP -S"
503    fi
504else
505    if test "x$OPENJDK_TARGET_OS" = xsolaris; then
506        # If it is not gcc, then assume it is the Oracle Solaris Studio Compiler
507        COMPILER_NAME=ossc
508        PICFLAG="-KPIC"
509        LIBRARY_PREFIX=lib
510        SHARED_LIBRARY='lib[$]1.so'
511        STATIC_LIBRARY='lib[$]1.a'
512        SHARED_LIBRARY_FLAGS="-G"
513        SHARED_LIBRARY_SUFFIX='.so'
514        STATIC_LIBRARY_SUFFIX='.a'
515        OBJ_SUFFIX='.o'
516        EXE_SUFFIX=''
517        SET_SHARED_LIBRARY_NAME=''
518        SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
519	C_FLAG_REORDER='-xF'
520	CXX_FLAG_REORDER='-xF'
521        SET_SHARED_LIBRARY_ORIGIN='-R\$$$$ORIGIN[$]1'
522        SET_EXECUTABLE_ORIGIN="$SET_SHARED_LIBRARY_ORIGIN"
523        CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
524        CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
525        CFLAGS_JDKLIB_EXTRA='-xstrconst'
526        POST_STRIP_CMD="$STRIP -x"
527        POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\""
528    fi
529    if test "x$OPENJDK_TARGET_OS" = xwindows; then
530        # If it is not gcc, then assume it is the MS Visual Studio compiler
531        COMPILER_NAME=cl
532        PICFLAG=""
533        LIBRARY_PREFIX=
534        SHARED_LIBRARY='[$]1.dll'
535        STATIC_LIBRARY='[$]1.lib'
536        SHARED_LIBRARY_FLAGS="-LD"
537        SHARED_LIBRARY_SUFFIX='.dll'
538        STATIC_LIBRARY_SUFFIX='.lib'
539        OBJ_SUFFIX='.obj'
540        EXE_SUFFIX='.exe'
541        SET_SHARED_LIBRARY_NAME=''
542        SET_SHARED_LIBRARY_MAPFILE=''
543        SET_SHARED_LIBRARY_ORIGIN=''
544        SET_EXECUTABLE_ORIGIN=''
545    fi
546fi
547
548AC_SUBST(OBJ_SUFFIX)
549AC_SUBST(SHARED_LIBRARY)
550AC_SUBST(STATIC_LIBRARY)
551AC_SUBST(LIBRARY_PREFIX)
552AC_SUBST(SHARED_LIBRARY_SUFFIX)
553AC_SUBST(STATIC_LIBRARY_SUFFIX)
554AC_SUBST(EXE_SUFFIX)
555AC_SUBST(SHARED_LIBRARY_FLAGS)
556AC_SUBST(SET_SHARED_LIBRARY_NAME)
557AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
558AC_SUBST(C_FLAG_REORDER)
559AC_SUBST(CXX_FLAG_REORDER)
560AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
561AC_SUBST(SET_EXECUTABLE_ORIGIN)
562AC_SUBST(POST_STRIP_CMD)
563AC_SUBST(POST_MCS_CMD)
564
565# The (cross) compiler is now configured, we can now test capabilities
566# of the target platform.
567])
568
569AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
570[
571
572###############################################################################
573#
574# Setup the opt flags for different compilers
575# and different operating systems.
576#
577
578#
579# NOTE: check for -mstackrealign needs to be below potential addition of -m32
580#
581if test "x$OPENJDK_TARGET_CPU_BITS" = x32 && test "x$OPENJDK_TARGET_OS" = xmacosx; then
582    # On 32-bit MacOSX the OS requires C-entry points to be 16 byte aligned.
583    # While waiting for a better solution, the current workaround is to use -mstackrealign.
584    CFLAGS="$CFLAGS -mstackrealign"
585    AC_MSG_CHECKING([if 32-bit compiler supports -mstackrealign])
586    AC_LINK_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])],
587                   [
588		        AC_MSG_RESULT([yes])
589                   ],
590	           [
591		        AC_MSG_RESULT([no])
592	                AC_MSG_ERROR([The selected compiler $CXX does not support -mstackrealign! Try to put another compiler in the path.])
593	           ])
594fi
595
596C_FLAG_DEPS="-MMD -MF"
597CXX_FLAG_DEPS="-MMD -MF"
598
599case $COMPILER_TYPE in
600  CC )
601    D_FLAG="-g"
602    case $COMPILER_NAME in
603      gcc )
604      	case $OPENJDK_TARGET_OS in
605	  macosx )
606	    # On MacOSX we optimize for size, something
607	    # we should do for all platforms?
608	    C_O_FLAG_HI="-Os"
609	    C_O_FLAG_NORM="-Os"
610	    C_O_FLAG_NONE=""
611	    ;;
612	  *)
613	    C_O_FLAG_HI="-O3"
614	    C_O_FLAG_NORM="-O2"
615	    C_O_FLAG_NONE="-O0"
616	    CFLAGS_DEBUG_SYMBOLS="-g"
617	    CXXFLAGS_DEBUG_SYMBOLS="-g"
618	    if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
619	       CFLAGS_DEBUG_SYMBOLS="-g1"
620	       CXXFLAGS_DEBUG_SYMBOLS="-g1"
621	    fi
622	    ;;
623	esac
624        CXX_O_FLAG_HI="$C_O_FLAG_HI"
625        CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
626        CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
627        ;;
628      ossc )
629        #
630        # Forte has different names for this with their C++ compiler...
631        #
632        C_FLAG_DEPS="-xMMD -xMF"
633        CXX_FLAG_DEPS="-xMMD -xMF"
634
635        # Extra options used with HIGHEST
636        #
637        # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
638        #          done with care, there are some assumptions below that need to
639        #          be understood about the use of pointers, and IEEE behavior.
640        #
641        # Use non-standard floating point mode (not IEEE 754)
642        CC_HIGHEST="$CC_HIGHEST -fns"
643        # Do some simplification of floating point arithmetic (not IEEE 754)
644        CC_HIGHEST="$CC_HIGHEST -fsimple"
645        # Use single precision floating point with 'float'
646        CC_HIGHEST="$CC_HIGHEST -fsingle"
647        # Assume memory references via basic pointer types do not alias
648        #   (Source with excessing pointer casting and data access with mixed 
649        #    pointer types are not recommended)
650        CC_HIGHEST="$CC_HIGHEST -xalias_level=basic"
651        # Use intrinsic or inline versions for math/std functions
652        #   (If you expect perfect errno behavior, do not use this)
653        CC_HIGHEST="$CC_HIGHEST -xbuiltin=%all"
654        # Loop data dependency optimizations (need -xO3 or higher)
655        CC_HIGHEST="$CC_HIGHEST -xdepend"
656        # Pointer parameters to functions do not overlap
657        #   (Similar to -xalias_level=basic usage, but less obvious sometimes.
658        #    If you pass in multiple pointers to the same data, do not use this)
659        CC_HIGHEST="$CC_HIGHEST -xrestrict"
660        # Inline some library routines
661        #   (If you expect perfect errno behavior, do not use this)
662        CC_HIGHEST="$CC_HIGHEST -xlibmil"
663        # Use optimized math routines
664        #   (If you expect perfect errno behavior, do not use this)
665        #  Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
666        #CC_HIGHEST="$CC_HIGHEST -xlibmopt"
667
668        if test "x$OPENJDK_TARGET_CPU" = xsparc; then
669          CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
670          CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
671        fi
672
673        case $OPENJDK_TARGET_CPU_ARCH in
674          x86)
675            C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xregs=no%frameptr"
676            C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
677            C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
678            C_O_FLAG_NONE="-xregs=no%frameptr"
679            CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
680            CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
681            CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
682            CXX_O_FLAG_NONE="-xregs=no%frameptr"
683            if test "x$OPENJDK_TARGET_CPU" = xx86; then
684               C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
685               CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
686            fi
687            ;;
688          sparc)
689            CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
690            CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
691            C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
692            C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
693            C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
694            C_O_FLAG_NONE=""
695            CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
696            CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
697            CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
698            CXX_O_FLAG_NONE=""
699            ;;
700        esac
701
702    CFLAGS_DEBUG_SYMBOLS="-g -xs"
703    CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
704    esac
705    ;;
706  CL )
707    D_FLAG=
708    C_O_FLAG_HIGHEST="-O2"
709    C_O_FLAG_HI="-O1"
710    C_O_FLAG_NORM="-O1"
711    C_O_FLAG_NONE="-Od"
712    CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
713    CXX_O_FLAG_HI="$C_O_FLAG_HI"
714    CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
715    CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
716    ;;
717esac
718
719if test -z "$C_O_FLAG_HIGHEST"; then
720   C_O_FLAG_HIGHEST="$C_O_FLAG_HI"
721fi
722
723if test -z "$CXX_O_FLAG_HIGHEST"; then
724   CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HI"
725fi
726
727AC_SUBST(C_O_FLAG_HIGHEST)
728AC_SUBST(C_O_FLAG_HI)
729AC_SUBST(C_O_FLAG_NORM)
730AC_SUBST(C_O_FLAG_NONE)
731AC_SUBST(CXX_O_FLAG_HIGHEST)
732AC_SUBST(CXX_O_FLAG_HI)
733AC_SUBST(CXX_O_FLAG_NORM)
734AC_SUBST(CXX_O_FLAG_NONE)
735AC_SUBST(C_FLAG_DEPS)
736AC_SUBST(CXX_FLAG_DEPS)
737])
738
739AC_DEFUN_ONCE([TOOLCHAIN_SETUP_COMPILER_FLAGS_FOR_JDK],
740[
741
742if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
743   AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
744fi
745
746if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
747   AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
748fi
749
750if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
751   AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
752fi
753
754AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
755    [extra flags to be used when compiling jdk c-files])])
756
757AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
758    [extra flags to be used when compiling jdk c++-files])])
759
760AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
761    [extra flags to be used when linking jdk])])
762
763CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
764CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
765LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"
766
767# Hotspot needs these set in their legacy form
768LEGACY_EXTRA_CFLAGS=$with_extra_cflags
769LEGACY_EXTRA_CXXFLAGS=$with_extra_cxxflags
770LEGACY_EXTRA_LDFLAGS=$with_extra_ldflags
771
772AC_SUBST(LEGACY_EXTRA_CFLAGS)
773AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
774AC_SUBST(LEGACY_EXTRA_LDFLAGS)
775
776###############################################################################
777#
778# Now setup the CFLAGS and LDFLAGS for the JDK build.
779# Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
780#
781case $COMPILER_NAME in
782      gcc )
783      	  CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -W -Wall -Wno-unused -Wno-parentheses \
784                          -pipe \
785                          -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
786	  case $OPENJDK_TARGET_CPU_ARCH in
787	  arm )
788            # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
789	    CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
790	  ;;
791	  ppc )
792            # on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing
793	  ;;
794	  * )
795	    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer"
796	    CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
797          ;;
798	  esac
799          ;;
800      ossc )
801          CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
802          case $OPENJDK_TARGET_CPU_ARCH in
803          x86 )
804            CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
805       	    CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"
806          ;;
807          esac
808
809      	  CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
810      	  CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
811
812          LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
813          LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
814          ;;
815      cl )
816          CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
817               -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB -DWIN32_LEAN_AND_MEAN \
818	       -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
819	       -DWIN32 -DIAL"
820          case $OPENJDK_TARGET_CPU in
821              x86 )
822                  CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86"
823                  ;;
824              x86_64 )
825                  CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64"
826                  ;;
827          esac
828          ;;
829esac
830
831###############################################################################
832
833CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64"
834
835# The package path is used only on macosx?
836PACKAGE_PATH=/opt/local
837AC_SUBST(PACKAGE_PATH)
838
839if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
840    # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
841    #   Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
842    #   (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
843    #   Note: -Dmacro         is the same as    #define macro 1
844    #         -Dmacro=	    is the same as    #define macro
845    if test "x$OPENJDK_TARGET_OS" = xsolaris; then
846        CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
847    else
848        CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
849    fi
850else
851    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN"
852fi
853if test "x$OPENJDK_TARGET_OS" = xlinux; then
854    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DLINUX"
855fi
856if test "x$OPENJDK_TARGET_OS" = xwindows; then
857    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DWINDOWS"
858fi
859if test "x$OPENJDK_TARGET_OS" = xsolaris; then
860    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DSOLARIS"
861fi
862if test "x$OPENJDK_TARGET_OS" = xmacosx; then
863    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMACOSX -D_ALLBSD_SOURCE"
864fi
865if test "x$OPENJDK_TARGET_OS" = xbsd; then
866    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DBSD -D_ALLBSD_SOURCE"
867fi
868if test "x$DEBUG_LEVEL" = xrelease; then
869    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG"
870    if test "x$OPENJDK_TARGET_OS" = xsolaris; then
871        CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED"
872    fi
873else
874    CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG"
875fi
876
877CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
878CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"$RELEASE\"'"
879
880CCXXFLAGS_JDK="$CCXXFLAGS_JDK \
881        -I${JDK_OUTPUTDIR}/include \
882        -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \
883        -I${JDK_TOPDIR}/src/share/javavm/export \
884        -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/javavm/export \
885        -I${JDK_TOPDIR}/src/share/native/common \
886        -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common"
887
888# The shared libraries are compiled using the picflag.
889CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
890CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "
891
892# Executable flags
893CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK"
894CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK"
895
896# Now this is odd. The JDK native libraries have to link against libjvm.so
897# On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
898# Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
899# is identical for client and server? Yes. Which is picked at runtime (client or server)?
900# Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
901# libraries will link to whatever is in memory. Yuck. 
902#
903# Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
904if test "x$COMPILER_NAME" = xcl; then
905    LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
906    if test "x$OPENJDK_TARGET_CPU" = xx86; then 
907        LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
908    fi
909    # TODO: make -debug optional "--disable-full-debug-symbols"
910    LDFLAGS_JDK="$LDFLAGS_JDK -debug"
911    LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib"
912    LDFLAGS_JDKLIB_SUFFIX=""
913    if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
914        LDFLAGS_STACK_SIZE=1048576
915    else
916        LDFLAGS_STACK_SIZE=327680
917    fi
918    LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE"
919else
920    if test "x$COMPILER_NAME" = xgcc; then
921        # If this is a --hash-style=gnu system, use --hash-style=both, why?
922        HAS_GNU_HASH=`$CC -dumpspecs 2>/dev/null | $GREP 'hash-style=gnu'`
923        if test -n "$HAS_GNU_HASH"; then
924            LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both "
925        fi
926        if test "x$OPENJDK_TARGET_OS" = xlinux; then 
927          # And since we now know that the linker is gnu, then add -z defs, to forbid
928          # undefined symbols in object files.
929          LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs"
930          if test "x$DEBUG_LEVEL" = "xrelease"; then
931              # When building release libraries, tell the linker optimize them.
932              # Should this be supplied to the OSS linker as well?
933              LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
934          fi
935        fi
936    fi
937    LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \
938                    -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server \
939                    -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client \
940                    -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}"
941
942    LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
943    if test "x$COMPILER_NAME" = xossc; then
944        LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
945    fi
946
947    LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
948    if test "x$OPENJDK_TARGET_OS" = xlinux; then
949        LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
950    fi
951fi
952
953# Adjust flags according to debug level.
954case $DEBUG_LEVEL in
955      fastdebug ) 
956              CFLAGS="$CFLAGS $D_FLAG"
957              JAVAC_FLAGS="$JAVAC_FLAGS -g"
958              ;;
959      slowdebug )
960              CFLAGS="$CFLAGS $D_FLAG"
961	      C_O_FLAG_HI="$C_O_FLAG_NONE"
962	      C_O_FLAG_NORM="$C_O_FLAG_NONE"
963	      CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"
964	      CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"
965              JAVAC_FLAGS="$JAVAC_FLAGS -g"
966              ;;
967esac              
968
969                
970AC_SUBST(CFLAGS_JDKLIB)
971AC_SUBST(CFLAGS_JDKEXE)
972
973AC_SUBST(CXXFLAGS_JDKLIB)
974AC_SUBST(CXXFLAGS_JDKEXE)
975
976AC_SUBST(LDFLAGS_JDKLIB)
977AC_SUBST(LDFLAGS_JDKEXE)
978AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
979AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
980AC_SUBST(LDFLAGS_CXX_JDK)
981])
982