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 AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS],
27 [
28 # Option used to tell the compiler whether to create 32- or 64-bit executables
29 if test "x$TOOLCHAIN_TYPE" = xxlc; then
30 COMPILER_TARGET_BITS_FLAG="-q"
31 else
32 COMPILER_TARGET_BITS_FLAG="-m"
33 fi
34 AC_SUBST(COMPILER_TARGET_BITS_FLAG)
35
36 # FIXME: figure out if we should select AR flags depending on OS or toolchain.
37 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
38 ARFLAGS="-r"
39 elif test "x$OPENJDK_TARGET_OS" = xaix; then
40 ARFLAGS="-X64"
41 elif test "x$OPENJDK_TARGET_OS" = xwindows; then
42 # lib.exe is used as AR to create static libraries.
43 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"
44 else
45 ARFLAGS=""
46 fi
47 AC_SUBST(ARFLAGS)
48
49 ## Setup strip.
50 # FIXME: should this really be per platform, or should it be per toolchain type?
51 # strip is not provided by clang or solstudio; so guessing platform makes most sense.
52 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD.
53 if test "x$OPENJDK_TARGET_OS" = xlinux; then
54 STRIPFLAGS="-g"
55 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then
56 STRIPFLAGS="-x"
57 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then
58 STRIPFLAGS="-S"
59 elif test "x$OPENJDK_TARGET_OS" = xaix; then
60 STRIPFLAGS="-X32_64"
61 fi
62
63 if test "x$OPENJDK_TARGET_OS" != xwindows; then
64 POST_STRIP_CMD="$STRIP $STRIPFLAGS"
65 fi
66 AC_SUBST(POST_STRIP_CMD)
67
68 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
69 # FIXME: break out into MCSFLAGS
70 POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\""
71 fi
72 AC_SUBST(POST_MCS_CMD)
73
74 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
75 CC_OUT_OPTION=-Fo
76 EXE_OUT_OPTION=-out:
77 LD_OUT_OPTION=-out:
78 AR_OUT_OPTION=-out:
79 else
80 # The option used to specify the target .o,.a or .so file.
81 # When compiling, how to specify the to be created object file.
82 CC_OUT_OPTION='-o$(SPACE)'
83 # When linking, how to specify the to be created executable.
84 EXE_OUT_OPTION='-o$(SPACE)'
85 # When linking, how to specify the to be created dynamically linkable library.
86 LD_OUT_OPTION='-o$(SPACE)'
87 # When archiving, how to specify the to be create static archive for object files.
88 AR_OUT_OPTION='rcs$(SPACE)'
89 fi
90 AC_SUBST(CC_OUT_OPTION)
91 AC_SUBST(EXE_OUT_OPTION)
92 AC_SUBST(LD_OUT_OPTION)
93 AC_SUBST(AR_OUT_OPTION)
94
95 # On Windows, we need to set RC flags.
96 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
97 RC_FLAGS="-nologo -l0x409"
98 if test "x$VARIANT" = xOPT; then
99 RC_FLAGS="$RC_FLAGS -DNDEBUG"
100 fi
101
102 # The version variables used to create RC_FLAGS may be overridden
103 # in a custom configure script, or possibly the command line.
104 # Let those variables be expanded at make time in spec.gmk.
105 # The \$ are escaped to the shell, and the $(...) variables
106 # are evaluated by make.
107 RC_FLAGS="$RC_FLAGS \
108 -D\"JDK_BUILD_ID=\$(FULL_VERSION)\" \
109 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \
110 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \
111 -D\"JDK_VER=\$(JDK_MINOR_VERSION).\$(JDK_MICRO_VERSION).\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0).\$(COOKED_BUILD_NUMBER)\" \
112 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \
113 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(JDK_MINOR_VERSION) \$(JDK_UPDATE_META_TAG)\" \
114 -D\"JDK_FVER=\$(JDK_MINOR_VERSION),\$(JDK_MICRO_VERSION),\$(if \$(JDK_UPDATE_VERSION),\$(JDK_UPDATE_VERSION),0),\$(COOKED_BUILD_NUMBER)\""
115 fi
116 AC_SUBST(RC_FLAGS)
117
118 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
119 # silence copyright notice and other headers.
120 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo"
121 fi
122
123 if test "x$SYSROOT" != "x"; then
124 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
125 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
126 # Solaris Studio does not have a concept of sysroot. Instead we must
127 # make sure the default include and lib dirs are appended to each
128 # compile and link command line.
129 SYSROOT_CFLAGS="-I$SYSROOT/usr/include"
130 SYSROOT_LDFLAGS="-L$SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \
131 -L$SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \
132 -L$SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR"
133 fi
134 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then
135 # Apple only wants -isysroot <path>, but we also need -iframework<path>/System/Library/Frameworks
136 SYSROOT_CFLAGS="-isysroot \"$SYSROOT\" -iframework\"$SYSROOT/System/Library/Frameworks\""
137 SYSROOT_LDFLAGS=$SYSROOT_CFLAGS
138 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
139 SYSROOT_CFLAGS="--sysroot=$SYSROOT"
140 SYSROOT_LDFLAGS="--sysroot=$SYSROOT"
141 elif test "x$TOOLCHAIN_TYPE" = xclang; then
142 SYSROOT_CFLAGS="-isysroot \"$SYSROOT\""
143 SYSROOT_LDFLAGS="-isysroot \"$SYSROOT\""
144 fi
145 # Propagate the sysroot args to hotspot
146 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $SYSROOT_CFLAGS"
147 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $SYSROOT_CFLAGS"
148 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $SYSROOT_LDFLAGS"
149 fi
150
151 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework
152 # set this here so it doesn't have to be peppered throughout the forest
153 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
154 SYSROOT_CFLAGS="$SYSROOT_CFLAGS -F\"$SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks\""
155 SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS -F\"$SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks\""
156 fi
157
158 AC_SUBST(SYSROOT_CFLAGS)
159 AC_SUBST(SYSROOT_LDFLAGS)
160 ])
161
162 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
163 [
164 ###############################################################################
165 #
166 # How to compile shared libraries.
167 #
168
169 if test "x$TOOLCHAIN_TYPE" = xgcc; then
170 PICFLAG="-fPIC"
171 C_FLAG_REORDER=''
172 CXX_FLAG_REORDER=''
173
174 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
175 # Linking is different on MacOSX
176 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
177 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
178 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
179 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
180 SET_SHARED_LIBRARY_MAPFILE=''
181 else
182 # Default works for linux, might work on other platforms as well.
183 SHARED_LIBRARY_FLAGS='-shared'
184 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
185 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"
186 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
187 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
188 fi
189 elif test "x$TOOLCHAIN_TYPE" = xclang; then
190 PICFLAG=''
191 C_FLAG_REORDER=''
192 CXX_FLAG_REORDER=''
193
194 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
195 # Linking is different on MacOSX
196 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
197 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
198 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
199 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
200 SET_SHARED_LIBRARY_MAPFILE=''
201 else
202 # Default works for linux, might work on other platforms as well.
203 SHARED_LIBRARY_FLAGS='-shared'
204 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
205 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"
206 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
207 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
208 fi
209 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
210 PICFLAG="-KPIC"
211 C_FLAG_REORDER='-xF'
212 CXX_FLAG_REORDER='-xF'
213 SHARED_LIBRARY_FLAGS="-G"
214 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'
215 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
216 SET_SHARED_LIBRARY_NAME=''
217 SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
218 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
219 PICFLAG="-qpic=large"
220 C_FLAG_REORDER=''
221 CXX_FLAG_REORDER=''
222 SHARED_LIBRARY_FLAGS="-qmkshrobj"
223 SET_EXECUTABLE_ORIGIN=""
224 SET_SHARED_LIBRARY_ORIGIN=''
225 SET_SHARED_LIBRARY_NAME=''
226 SET_SHARED_LIBRARY_MAPFILE=''
227 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
228 PICFLAG=""
229 C_FLAG_REORDER=''
230 CXX_FLAG_REORDER=''
231 SHARED_LIBRARY_FLAGS="-LD"
232 SET_EXECUTABLE_ORIGIN=''
233 SET_SHARED_LIBRARY_ORIGIN=''
234 SET_SHARED_LIBRARY_NAME=''
235 SET_SHARED_LIBRARY_MAPFILE=''
236 fi
237
238 AC_SUBST(C_FLAG_REORDER)
239 AC_SUBST(CXX_FLAG_REORDER)
240 AC_SUBST(SHARED_LIBRARY_FLAGS)
241 AC_SUBST(SET_EXECUTABLE_ORIGIN)
242 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
243 AC_SUBST(SET_SHARED_LIBRARY_NAME)
244 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
245
246 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
247 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
248 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
249 CFLAGS_JDKLIB_EXTRA='-xstrconst'
250 fi
251 # The (cross) compiler is now configured, we can now test capabilities
252 # of the target platform.
253 ])
254
255 # Documentation on common flags used for solstudio in HIGHEST.
256 #
257 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
258 # done with care, there are some assumptions below that need to
259 # be understood about the use of pointers, and IEEE behavior.
260 #
261 # -fns: Use non-standard floating point mode (not IEEE 754)
262 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)
263 # -fsingle: Use single precision floating point with 'float'
264 # -xalias_level=basic: Assume memory references via basic pointer types do not alias
265 # (Source with excessing pointer casting and data access with mixed
266 # pointer types are not recommended)
267 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions
268 # (If you expect perfect errno behavior, do not use this)
269 # -xdepend: Loop data dependency optimizations (need -xO3 or higher)
270 # -xrestrict: Pointer parameters to functions do not overlap
271 # (Similar to -xalias_level=basic usage, but less obvious sometimes.
272 # If you pass in multiple pointers to the same data, do not use this)
273 # -xlibmil: Inline some library routines
274 # (If you expect perfect errno behavior, do not use this)
275 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)
276 # (If you expect perfect errno behavior, do not use this)
277 # Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
278
279 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.
280 # Bug?
281 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then
282 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
283 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
284 #fi
285
286 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
287 [
288
289 ###############################################################################
290 #
291 # Setup the opt flags for different compilers
292 # and different operating systems.
293 #
294
295 # FIXME: this was indirectly the old default, but just inherited.
296 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
297 # C_FLAG_DEPS="-MMD -MF"
298 # fi
299
300 # Generate make dependency files
301 if test "x$TOOLCHAIN_TYPE" = xgcc; then
302 C_FLAG_DEPS="-MMD -MF"
303 elif test "x$TOOLCHAIN_TYPE" = xclang; then
304 C_FLAG_DEPS="-MMD -MF"
305 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
306 C_FLAG_DEPS="-xMMD -xMF"
307 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
308 C_FLAG_DEPS="-qmakedep=gcc -MF"
309 fi
310 CXX_FLAG_DEPS="$C_FLAG_DEPS"
311 AC_SUBST(C_FLAG_DEPS)
312 AC_SUBST(CXX_FLAG_DEPS)
313
314 # Debug symbols
315 if test "x$TOOLCHAIN_TYPE" = xgcc; then
316 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
317 # reduce from default "-g2" option to save space
318 CFLAGS_DEBUG_SYMBOLS="-g1"
319 CXXFLAGS_DEBUG_SYMBOLS="-g1"
320 else
321 CFLAGS_DEBUG_SYMBOLS="-g"
322 CXXFLAGS_DEBUG_SYMBOLS="-g"
323 fi
324 elif test "x$TOOLCHAIN_TYPE" = xclang; then
325 CFLAGS_DEBUG_SYMBOLS="-g"
326 CXXFLAGS_DEBUG_SYMBOLS="-g"
327 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
328 CFLAGS_DEBUG_SYMBOLS="-g -xs"
329 # FIXME: likely a bug, this disables debug symbols rather than enables them
330 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
331 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
332 CFLAGS_DEBUG_SYMBOLS="-g"
333 CXXFLAGS_DEBUG_SYMBOLS="-g"
334 fi
335 AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
336 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
337
338 # bounds, memory and behavior checking options
339 if test "x$TOOLCHAIN_TYPE" = xgcc; then
340 case $DEBUG_LEVEL in
341 release )
342 # no adjustment
343 ;;
344 fastdebug )
345 # no adjustment
346 ;;
347 slowdebug )
348 # Add runtime stack smashing and undefined behavior checks
349 CFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1"
350 CXXFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1"
351 ;;
352 esac
353 fi
354 AC_SUBST(CFLAGS_DEBUG_OPTIONS)
355 AC_SUBST(CXXFLAGS_DEBUG_OPTIONS)
356
357 # Optimization levels
358 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
359 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil"
360
361 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
362 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
363 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr"
364 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
365 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
366 C_O_FLAG_DEBUG="-xregs=no%frameptr"
367 C_O_FLAG_NONE="-xregs=no%frameptr"
368 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
369 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
370 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
371 CXX_O_FLAG_DEBUG="-xregs=no%frameptr"
372 CXX_O_FLAG_NONE="-xregs=no%frameptr"
373 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
374 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
375 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
376 fi
377 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
378 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra"
379 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
380 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
381 C_O_FLAG_DEBUG=""
382 C_O_FLAG_NONE=""
383 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
384 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
385 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
386 C_O_FLAG_DEBUG=""
387 CXX_O_FLAG_NONE=""
388 fi
389 else
390 # The remaining toolchains share opt flags between CC and CXX;
391 # setup for C and duplicate afterwards.
392 if test "x$TOOLCHAIN_TYPE" = xgcc; then
393 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
394 # On MacOSX we optimize for size, something
395 # we should do for all platforms?
396 C_O_FLAG_HIGHEST="-Os"
397 C_O_FLAG_HI="-Os"
398 C_O_FLAG_NORM="-Os"
399 else
400 C_O_FLAG_HIGHEST="-O3"
401 C_O_FLAG_HI="-O3"
402 C_O_FLAG_NORM="-O2"
403 fi
404 C_O_FLAG_DEBUG="-O0"
405 C_O_FLAG_NONE="-O0"
406 elif test "x$TOOLCHAIN_TYPE" = xclang; then
407 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
408 # On MacOSX we optimize for size, something
409 # we should do for all platforms?
410 C_O_FLAG_HIGHEST="-Os"
411 C_O_FLAG_HI="-Os"
412 C_O_FLAG_NORM="-Os"
413 else
414 C_O_FLAG_HIGHEST="-O3"
415 C_O_FLAG_HI="-O3"
416 C_O_FLAG_NORM="-O2"
417 fi
418 C_O_FLAG_DEBUG="-O0"
419 C_O_FLAG_NONE="-O0"
420 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
421 C_O_FLAG_HIGHEST="-O3"
422 C_O_FLAG_HI="-O3 -qstrict"
423 C_O_FLAG_NORM="-O2"
424 C_O_FLAG_DEBUG="-qnoopt"
425 C_O_FLAG_NONE="-qnoop"
426 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
427 C_O_FLAG_HIGHEST="-O2"
428 C_O_FLAG_HI="-O1"
429 C_O_FLAG_NORM="-O1"
430 C_O_FLAG_DEBUG="-Od"
431 C_O_FLAG_NONE="-Od"
432 fi
433 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
434 CXX_O_FLAG_HI="$C_O_FLAG_HI"
435 CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
436 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG"
437 CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
438 fi
439
440 # Adjust optimization flags according to debug level.
441 case $DEBUG_LEVEL in
442 release )
443 # no adjustment
444 ;;
445 fastdebug )
446 # Not quite so much optimization
447 C_O_FLAG_HI="$C_O_FLAG_NORM"
448 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
449 ;;
450 slowdebug )
451 # Disable optimization
452 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG"
453 C_O_FLAG_HI="$C_O_FLAG_DEBUG"
454 C_O_FLAG_NORM="$C_O_FLAG_DEBUG"
455 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG"
456 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG"
457 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG"
458 ;;
459 esac
460
461 AC_SUBST(C_O_FLAG_HIGHEST)
462 AC_SUBST(C_O_FLAG_HI)
463 AC_SUBST(C_O_FLAG_NORM)
464 AC_SUBST(C_O_FLAG_DEBUG)
465 AC_SUBST(C_O_FLAG_NONE)
466 AC_SUBST(CXX_O_FLAG_HIGHEST)
467 AC_SUBST(CXX_O_FLAG_HI)
468 AC_SUBST(CXX_O_FLAG_NORM)
469 AC_SUBST(CXX_O_FLAG_DEBUG)
470 AC_SUBST(CXX_O_FLAG_NONE)
471 ])
472
473 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
474 [
475 # Special extras...
476 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
477 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
478 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
479 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
480 fi
481 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
482 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
483 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
484 LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall"
485 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
486 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
487 fi
488
489 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
490 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
491 fi
492
493 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
494 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
495 fi
496
497 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
498 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
499 fi
500
501 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
502 [extra flags to be used when compiling jdk c-files])])
503
504 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
505 [extra flags to be used when compiling jdk c++-files])])
506
507 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
508 [extra flags to be used when linking jdk])])
509
510 CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
511 CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
512 LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"
513
514 # Hotspot needs these set in their legacy form
515 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags"
516 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags"
517 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags"
518
519 AC_SUBST(LEGACY_EXTRA_CFLAGS)
520 AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
521 AC_SUBST(LEGACY_EXTRA_LDFLAGS)
522
523 ###############################################################################
524 #
525 # Now setup the CFLAGS and LDFLAGS for the JDK build.
526 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
527 #
528
529 # Setup compiler/platform specific flags into
530 # CFLAGS_JDK - C Compiler flags
531 # CXXFLAGS_JDK - C++ Compiler flags
532 # COMMON_CCXXFLAGS_JDK - common to C and C++
533 if test "x$TOOLCHAIN_TYPE" = xgcc; then
534 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
535 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
536 case $OPENJDK_TARGET_CPU_ARCH in
537 arm )
538 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
539 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
540 ;;
541 ppc )
542 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing
543 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
544 ;;
545 * )
546 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer"
547 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
548 ;;
549 esac
550 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
551 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
552 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
553 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
554 fi
555
556 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
557 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
558 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
559 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
560 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
561 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
562 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK \
563 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
564 -DWIN32_LEAN_AND_MEAN \
565 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
566 -DWIN32 -DIAL"
567 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
568 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64"
569 else
570 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86"
571 fi
572 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to
573 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual
574 # studio.
575 if test "x$TOOLCHAIN_VERSION" = "x2010"; then
576 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \
577 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"
578 fi
579 fi
580
581 ###############################################################################
582
583 # Adjust flags according to debug level.
584 case $DEBUG_LEVEL in
585 fastdebug | slowdebug )
586 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS"
587 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS"
588 JAVAC_FLAGS="$JAVAC_FLAGS -g"
589 ;;
590 release )
591 ;;
592 * )
593 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
594 ;;
595 esac
596
597 # Setup LP64
598 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64"
599
600 # Set some common defines. These works for all compilers, but assume
601 # -D is universally accepted.
602
603 # Setup endianness
604 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
605 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
606 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
607 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
608 # Note: -Dmacro is the same as #define macro 1
609 # -Dmacro= is the same as #define macro
610 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
611 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
612 else
613 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
614 fi
615 else
616 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they
617 # are defined in the system?
618 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
619 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN="
620 else
621 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN"
622 fi
623 fi
624
625 # Setup target OS define. Use OS target name but in upper case.
626 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
627 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
628
629 # Setup target CPU
630 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
631
632 # Setup debug/release defines
633 if test "x$DEBUG_LEVEL" = xrelease; then
634 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG"
635 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
636 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED"
637 fi
638 else
639 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG"
640 fi
641
642 # Setup release name
643 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'"
644
645
646 # Set some additional per-OS defines.
647 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
648 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
649 elif test "x$OPENJDK_TARGET_OS" = xaix; then
650 # FIXME: PPC64 should not be here.
651 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DPPC64"
652 elif test "x$OPENJDK_TARGET_OS" = xbsd; then
653 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
654 fi
655
656 # Additional macosx handling
657 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
658 # Setting these parameters makes it an error to link to macosx APIs that are
659 # newer than the given OS version and makes the linked binaries compatible
660 # even if built on a newer version of the OS.
661 # The expected format is X.Y.Z
662 MACOSX_VERSION_MIN=10.7.0
663 AC_SUBST(MACOSX_VERSION_MIN)
664
665 # The macro takes the version with no dots, ex: 1070
666 # Let the flags variables get resolved in make for easier override on make
667 # command line.
668 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
669 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
670 fi
671
672 # Setup some hard coded includes
673 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \
674 -I${JDK_TOPDIR}/src/java.base/share/native/include \
675 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \
676 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include"
677
678 # The shared libraries are compiled using the picflag.
679 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
680 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "
681
682 # Executable flags
683 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
684 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
685
686 AC_SUBST(CFLAGS_JDKLIB)
687 AC_SUBST(CFLAGS_JDKEXE)
688 AC_SUBST(CXXFLAGS_JDKLIB)
689 AC_SUBST(CXXFLAGS_JDKEXE)
690
691 # Setup LDFLAGS et al.
692 #
693
694 # Now this is odd. The JDK native libraries have to link against libjvm.so
695 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
696 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
697 # is identical for client and server? Yes. Which is picked at runtime (client or server)?
698 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
699 # libraries will link to whatever is in memory. Yuck.
700 #
701 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
702 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
703 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
704 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
705 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
706 fi
707 # TODO: make -debug optional "--disable-full-debug-symbols"
708 LDFLAGS_JDK="$LDFLAGS_JDK -debug"
709 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
710 # If this is a --hash-style=gnu system, use --hash-style=both, why?
711 # We have previously set HAS_GNU_HASH if this is the case
712 if test -n "$HAS_GNU_HASH"; then
713 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both"
714 fi
715 if test "x$OPENJDK_TARGET_OS" = xlinux; then
716 # And since we now know that the linker is gnu, then add -z defs, to forbid
717 # undefined symbols in object files.
718 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs"
719 case $DEBUG_LEVEL in
720 release )
721 # tell linker to optimize libraries.
722 # Should this be supplied to the OSS linker as well?
723 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
724 ;;
725 slowdebug )
726 if test "x$HAS_LINKER_NOW" = "xtrue"; then
727 # do relocations at load
728 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_NOW_FLAG"
729 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_NOW_FLAG"
730 fi
731 if test "x$HAS_LINKER_RELRO" = "xtrue"; then
732 # mark relocations read only
733 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG"
734 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG"
735 fi
736 ;;
737 fastdebug )
738 if test "x$HAS_LINKER_RELRO" = "xtrue"; then
739 # mark relocations read only
740 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG"
741 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG"
742 fi
743 ;;
744 * )
745 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
746 ;;
747 esac
748 fi
749 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
750 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
751 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
752 fi
753
754 # Customize LDFLAGS for executables
755
756 LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
757
758 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
759 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
760 LDFLAGS_STACK_SIZE=1048576
761 else
762 LDFLAGS_STACK_SIZE=327680
763 fi
764 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE"
765 elif test "x$OPENJDK_TARGET_OS" = xlinux; then
766 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
767 fi
768
769 # Customize LDFLAGS for libs
770 LDFLAGS_JDKLIB="${LDFLAGS_JDK}"
771
772 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
773 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -dll -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base"
774 LDFLAGS_JDKLIB_SUFFIX=""
775 else
776 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS} \
777 -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}"
778
779 # On some platforms (mac) the linker warns about non existing -L dirs.
780 # Add server first if available. Linking aginst client does not always produce the same results.
781 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
782 # Default to server for other variants.
783 if test "x$JVM_VARIANT_SERVER" = xtrue; then
784 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
785 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
786 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client"
787 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
788 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
789 else
790 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
791 fi
792
793 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
794 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
795 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
796 fi
797 fi
798
799 AC_SUBST(LDFLAGS_JDKLIB)
800 AC_SUBST(LDFLAGS_JDKEXE)
801 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
802 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
803 AC_SUBST(LDFLAGS_CXX_JDK)
804 ])
805
806 # FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
807 # [RUN-IF-FALSE])
808 # ------------------------------------------------------------
809 # Check that the c and c++ compilers support an argument
810 AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS],
811 [
812 AC_MSG_CHECKING([if compiler supports "$1"])
813 supports=yes
814
815 saved_cflags="$CFLAGS"
816 CFLAGS="$CFLAGS $1"
817 AC_LANG_PUSH([C])
818 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
819 [supports=no])
820 AC_LANG_POP([C])
821 CFLAGS="$saved_cflags"
822
823 saved_cxxflags="$CXXFLAGS"
824 CXXFLAGS="$CXXFLAG $1"
825 AC_LANG_PUSH([C++])
826 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
827 [supports=no])
828 AC_LANG_POP([C++])
829 CXXFLAGS="$saved_cxxflags"
830
831 AC_MSG_RESULT([$supports])
832 if test "x$supports" = "xyes" ; then
833 m4_ifval([$2], [$2], [:])
834 else
835 m4_ifval([$3], [$3], [:])
836 fi
837 ])
838
839 # FLAGS_LINKER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
840 # [RUN-IF-FALSE])
841 # ------------------------------------------------------------
842 # Check that the linker support an argument
843 AC_DEFUN([FLAGS_LINKER_CHECK_ARGUMENTS],
844 [
845 AC_MSG_CHECKING([if linker supports "$1"])
846 supports=yes
847
848 saved_ldflags="$LDFLAGS"
849 LDFLAGS="$LDFLAGS $1"
850 AC_LANG_PUSH([C])
851 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],
852 [], [supports=no])
853 AC_LANG_POP([C])
854 LDFLAGS="$saved_ldflags"
855
856 AC_MSG_RESULT([$supports])
857 if test "x$supports" = "xyes" ; then
858 m4_ifval([$2], [$2], [:])
859 else
860 m4_ifval([$3], [$3], [:])
861 fi
862 ])
863
864 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
865 [
866 # Some Zero and Shark settings.
867 # ZERO_ARCHFLAG tells the compiler which mode to build for
868 case "${OPENJDK_TARGET_CPU}" in
869 s390)
870 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
871 ;;
872 *)
873 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
874 esac
875 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])
876 AC_SUBST(ZERO_ARCHFLAG)
877
878 # Check that the compiler supports -mX (or -qX on AIX) flags
879 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
880 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
881 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
882 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
883 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
884
885 case "${TOOLCHAIN_TYPE}" in
886 microsoft)
887 DISABLE_WARNING_PREFIX="-wd"
888 CFLAGS_WARNINGS_ARE_ERRORS="-WX"
889 ;;
890 solstudio)
891 DISABLE_WARNING_PREFIX="-erroff="
892 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all"
893 ;;
894 gcc)
895 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error
896 AC_MSG_CHECKING([if gcc can disable warnings])
897 GCC_CAN_DISABLE_WARNINGS=`$ECHO $CC_VERSION_NUMBER | $GREP -e '^4\.[[4-9]]' -e '^[[5-9]]'`
898 if test "x$GCC_CAN_DISABLE_WARNINGS" != "x"; then
899 DISABLE_WARNING_PREFIX="-Wno-"
900 AC_MSG_RESULT([yes])
901 else
902 DISABLE_WARNING_PREFIX=
903 AC_MSG_RESULT([no])
904 fi
905 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
906 ;;
907 clang)
908 DISABLE_WARNING_PREFIX="-Wno-"
909 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
910 ;;
911 esac
912 AC_SUBST(DISABLE_WARNING_PREFIX)
913 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
914 ])