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 $STRIPFLAGS"
65 fi
66 AC_SUBST(POST_STRIP_CMD)
67
68 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
69 CC_OUT_OPTION=-Fo
70 EXE_OUT_OPTION=-out:
71 LD_OUT_OPTION=-out:
72 AR_OUT_OPTION=-out:
73 else
74 # The option used to specify the target .o,.a or .so file.
75 # When compiling, how to specify the to be created object file.
76 CC_OUT_OPTION='-o$(SPACE)'
77 # When linking, how to specify the to be created executable.
78 EXE_OUT_OPTION='-o$(SPACE)'
79 # When linking, how to specify the to be created dynamically linkable library.
80 LD_OUT_OPTION='-o$(SPACE)'
81 # When archiving, how to specify the to be create static archive for object files.
82 AR_OUT_OPTION='rcs$(SPACE)'
83 fi
84 AC_SUBST(CC_OUT_OPTION)
85 AC_SUBST(EXE_OUT_OPTION)
86 AC_SUBST(LD_OUT_OPTION)
87 AC_SUBST(AR_OUT_OPTION)
88
89 # On Windows, we need to set RC flags.
90 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
91 RC_FLAGS="-nologo -l0x409"
92 if test "x$VARIANT" = xOPT; then
93 RC_FLAGS="$RC_FLAGS -DNDEBUG"
94 fi
95
96 # The version variables used to create RC_FLAGS may be overridden
97 # in a custom configure script, or possibly the command line.
98 # Let those variables be expanded at make time in spec.gmk.
99 # The \$ are escaped to the shell, and the $(...) variables
100 # are evaluated by make.
101 RC_FLAGS="$RC_FLAGS \
102 -D\"JDK_VERSION_STRING=\$(VERSION_STRING)\" \
103 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \
104 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \
105 -D\"JDK_VER=\$(VERSION_NUMBER_FOUR_POSITIONS)\" \
106 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \
107 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(VERSION_MAJOR)\" \
108 -D\"JDK_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\""
109 fi
110 AC_SUBST(RC_FLAGS)
111
112 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
113 # silence copyright notice and other headers.
114 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo"
115 fi
116
117 if test "x$SYSROOT" != "x"; then
118 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
119 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
120 # Solaris Studio does not have a concept of sysroot. Instead we must
121 # make sure the default include and lib dirs are appended to each
122 # compile and link command line.
123 SYSROOT_CFLAGS="-I$SYSROOT/usr/include"
124 SYSROOT_LDFLAGS="-L$SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \
125 -L$SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \
126 -L$SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR"
127 fi
128 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then
129 # Apple only wants -isysroot <path>, but we also need -iframework<path>/System/Library/Frameworks
130 SYSROOT_CFLAGS="-isysroot \"$SYSROOT\" -iframework\"$SYSROOT/System/Library/Frameworks\""
131 SYSROOT_LDFLAGS=$SYSROOT_CFLAGS
132 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
133 SYSROOT_CFLAGS="--sysroot=$SYSROOT"
134 SYSROOT_LDFLAGS="--sysroot=$SYSROOT"
135 elif test "x$TOOLCHAIN_TYPE" = xclang; then
136 SYSROOT_CFLAGS="-isysroot \"$SYSROOT\""
137 SYSROOT_LDFLAGS="-isysroot \"$SYSROOT\""
138 fi
139 # Propagate the sysroot args to hotspot
140 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $SYSROOT_CFLAGS"
141 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $SYSROOT_CFLAGS"
142 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $SYSROOT_LDFLAGS"
143 fi
144
145 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework
146 # set this here so it doesn't have to be peppered throughout the forest
147 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
148 SYSROOT_CFLAGS="$SYSROOT_CFLAGS -F\"$SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks\""
149 SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS -F\"$SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks\""
150 fi
151
152 AC_SUBST(SYSROOT_CFLAGS)
153 AC_SUBST(SYSROOT_LDFLAGS)
154 ])
155
156 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
157 [
158 ###############################################################################
159 #
160 # How to compile shared libraries.
161 #
162
163 if test "x$TOOLCHAIN_TYPE" = xgcc; then
164 PICFLAG="-fPIC"
165 C_FLAG_REORDER=''
166 CXX_FLAG_REORDER=''
167
168 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
169 # Linking is different on MacOSX
170 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
171 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
172 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
173 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
174 SET_SHARED_LIBRARY_MAPFILE=''
175 else
176 # Default works for linux, might work on other platforms as well.
177 SHARED_LIBRARY_FLAGS='-shared'
178 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
179 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"
180 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
181 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
182 fi
183 elif test "x$TOOLCHAIN_TYPE" = xclang; then
184 PICFLAG=''
185 C_FLAG_REORDER=''
186 CXX_FLAG_REORDER=''
187
188 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
189 # Linking is different on MacOSX
190 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
191 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
192 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
193 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
194 SET_SHARED_LIBRARY_MAPFILE=''
195 else
196 # Default works for linux, might work on other platforms as well.
197 SHARED_LIBRARY_FLAGS='-shared'
198 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
199 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"
200 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
201 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
202 fi
203 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
204 PICFLAG="-KPIC"
205 C_FLAG_REORDER='-xF'
206 CXX_FLAG_REORDER='-xF'
207 SHARED_LIBRARY_FLAGS="-G"
208 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'
209 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
210 SET_SHARED_LIBRARY_NAME=''
211 SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
212 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
213 PICFLAG="-qpic=large"
214 C_FLAG_REORDER=''
215 CXX_FLAG_REORDER=''
216 SHARED_LIBRARY_FLAGS="-qmkshrobj"
217 SET_EXECUTABLE_ORIGIN=""
218 SET_SHARED_LIBRARY_ORIGIN=''
219 SET_SHARED_LIBRARY_NAME=''
220 SET_SHARED_LIBRARY_MAPFILE=''
221 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
222 PICFLAG=""
223 C_FLAG_REORDER=''
224 CXX_FLAG_REORDER=''
225 SHARED_LIBRARY_FLAGS="-LD"
226 SET_EXECUTABLE_ORIGIN=''
227 SET_SHARED_LIBRARY_ORIGIN=''
228 SET_SHARED_LIBRARY_NAME=''
229 SET_SHARED_LIBRARY_MAPFILE=''
230 fi
231
232 AC_SUBST(C_FLAG_REORDER)
233 AC_SUBST(CXX_FLAG_REORDER)
234 AC_SUBST(SET_EXECUTABLE_ORIGIN)
235 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
236 AC_SUBST(SET_SHARED_LIBRARY_NAME)
237 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
238
239 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
240 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
241 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
242 CFLAGS_JDKLIB_EXTRA='-xstrconst'
243 fi
244 # The (cross) compiler is now configured, we can now test capabilities
245 # of the target platform.
246 ])
247
248 # Documentation on common flags used for solstudio in HIGHEST.
249 #
250 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
251 # done with care, there are some assumptions below that need to
252 # be understood about the use of pointers, and IEEE behavior.
253 #
254 # -fns: Use non-standard floating point mode (not IEEE 754)
255 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)
256 # -fsingle: Use single precision floating point with 'float'
257 # -xalias_level=basic: Assume memory references via basic pointer types do not alias
258 # (Source with excessing pointer casting and data access with mixed
259 # pointer types are not recommended)
260 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions
261 # (If you expect perfect errno behavior, do not use this)
262 # -xdepend: Loop data dependency optimizations (need -xO3 or higher)
263 # -xrestrict: Pointer parameters to functions do not overlap
264 # (Similar to -xalias_level=basic usage, but less obvious sometimes.
265 # If you pass in multiple pointers to the same data, do not use this)
266 # -xlibmil: Inline some library routines
267 # (If you expect perfect errno behavior, do not use this)
268 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)
269 # (If you expect perfect errno behavior, do not use this)
270 # Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
271
272 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.
273 # Bug?
274 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then
275 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
276 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
277 #fi
278
279 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
280 [
281
282 ###############################################################################
283 #
284 # Setup the opt flags for different compilers
285 # and different operating systems.
286 #
287
288 # FIXME: this was indirectly the old default, but just inherited.
289 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
290 # C_FLAG_DEPS="-MMD -MF"
291 # fi
292
293 # Generate make dependency files
294 if test "x$TOOLCHAIN_TYPE" = xgcc; then
295 C_FLAG_DEPS="-MMD -MF"
296 elif test "x$TOOLCHAIN_TYPE" = xclang; then
297 C_FLAG_DEPS="-MMD -MF"
298 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
299 C_FLAG_DEPS="-xMMD -xMF"
300 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
301 C_FLAG_DEPS="-qmakedep=gcc -MF"
302 fi
303 CXX_FLAG_DEPS="$C_FLAG_DEPS"
304 AC_SUBST(C_FLAG_DEPS)
305 AC_SUBST(CXX_FLAG_DEPS)
306
307 # Debug symbols
308 if test "x$TOOLCHAIN_TYPE" = xgcc; then
309 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
310 # reduce from default "-g2" option to save space
311 CFLAGS_DEBUG_SYMBOLS="-g1"
312 CXXFLAGS_DEBUG_SYMBOLS="-g1"
313 else
314 CFLAGS_DEBUG_SYMBOLS="-g"
315 CXXFLAGS_DEBUG_SYMBOLS="-g"
316 fi
317 elif test "x$TOOLCHAIN_TYPE" = xclang; then
318 CFLAGS_DEBUG_SYMBOLS="-g"
319 CXXFLAGS_DEBUG_SYMBOLS="-g"
320 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
321 CFLAGS_DEBUG_SYMBOLS="-g -xs"
322 # FIXME: likely a bug, this disables debug symbols rather than enables them
323 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
324 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
325 CFLAGS_DEBUG_SYMBOLS="-g"
326 CXXFLAGS_DEBUG_SYMBOLS="-g"
327 fi
328 AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
329 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
330
331 # bounds, memory and behavior checking options
332 if test "x$TOOLCHAIN_TYPE" = xgcc; then
333 case $DEBUG_LEVEL in
334 release )
335 # no adjustment
336 ;;
337 fastdebug )
338 # no adjustment
339 ;;
340 slowdebug )
341 # Add runtime stack smashing and undefined behavior checks
342 CFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1"
343 CXXFLAGS_DEBUG_OPTIONS="-fstack-protector-all --param ssp-buffer-size=1"
344 ;;
345 esac
346 fi
347 AC_SUBST(CFLAGS_DEBUG_OPTIONS)
348 AC_SUBST(CXXFLAGS_DEBUG_OPTIONS)
349
350 # Optimization levels
351 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
352 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil"
353
354 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
355 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
356 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr"
357 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
358 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
359 C_O_FLAG_DEBUG="-xregs=no%frameptr"
360 C_O_FLAG_NONE="-xregs=no%frameptr"
361 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
362 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
363 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
364 CXX_O_FLAG_DEBUG="-xregs=no%frameptr"
365 CXX_O_FLAG_NONE="-xregs=no%frameptr"
366 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
367 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
368 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
369 fi
370 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
371 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra"
372 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
373 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
374 C_O_FLAG_DEBUG=""
375 C_O_FLAG_NONE=""
376 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
377 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
378 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
379 C_O_FLAG_DEBUG=""
380 CXX_O_FLAG_NONE=""
381 fi
382 else
383 # The remaining toolchains share opt flags between CC and CXX;
384 # setup for C and duplicate afterwards.
385 if test "x$TOOLCHAIN_TYPE" = xgcc; then
386 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
387 # On MacOSX we optimize for size, something
388 # we should do for all platforms?
389 C_O_FLAG_HIGHEST="-Os"
390 C_O_FLAG_HI="-Os"
391 C_O_FLAG_NORM="-Os"
392 else
393 C_O_FLAG_HIGHEST="-O3"
394 C_O_FLAG_HI="-O3"
395 C_O_FLAG_NORM="-O2"
396 fi
397 C_O_FLAG_DEBUG="-O0"
398 C_O_FLAG_NONE="-O0"
399 elif test "x$TOOLCHAIN_TYPE" = xclang; then
400 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
401 # On MacOSX we optimize for size, something
402 # we should do for all platforms?
403 C_O_FLAG_HIGHEST="-Os"
404 C_O_FLAG_HI="-Os"
405 C_O_FLAG_NORM="-Os"
406 else
407 C_O_FLAG_HIGHEST="-O3"
408 C_O_FLAG_HI="-O3"
409 C_O_FLAG_NORM="-O2"
410 fi
411 C_O_FLAG_DEBUG="-O0"
412 C_O_FLAG_NONE="-O0"
413 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
414 C_O_FLAG_HIGHEST="-O3"
415 C_O_FLAG_HI="-O3 -qstrict"
416 C_O_FLAG_NORM="-O2"
417 C_O_FLAG_DEBUG="-qnoopt"
418 C_O_FLAG_NONE="-qnoop"
419 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
420 C_O_FLAG_HIGHEST="-O2"
421 C_O_FLAG_HI="-O1"
422 C_O_FLAG_NORM="-O1"
423 C_O_FLAG_DEBUG="-Od"
424 C_O_FLAG_NONE="-Od"
425 fi
426 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
427 CXX_O_FLAG_HI="$C_O_FLAG_HI"
428 CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
429 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG"
430 CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
431 fi
432
433 # Adjust optimization flags according to debug level.
434 case $DEBUG_LEVEL in
435 release )
436 # no adjustment
437 ;;
438 fastdebug )
439 # Not quite so much optimization
440 C_O_FLAG_HI="$C_O_FLAG_NORM"
441 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
442 ;;
443 slowdebug )
444 # Disable optimization
445 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG"
446 C_O_FLAG_HI="$C_O_FLAG_DEBUG"
447 C_O_FLAG_NORM="$C_O_FLAG_DEBUG"
448 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG"
449 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG"
450 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG"
451 ;;
452 esac
453
454 AC_SUBST(C_O_FLAG_HIGHEST)
455 AC_SUBST(C_O_FLAG_HI)
456 AC_SUBST(C_O_FLAG_NORM)
457 AC_SUBST(C_O_FLAG_DEBUG)
458 AC_SUBST(C_O_FLAG_NONE)
459 AC_SUBST(CXX_O_FLAG_HIGHEST)
460 AC_SUBST(CXX_O_FLAG_HI)
461 AC_SUBST(CXX_O_FLAG_NORM)
462 AC_SUBST(CXX_O_FLAG_DEBUG)
463 AC_SUBST(CXX_O_FLAG_NONE)
464 ])
465
466 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
467 [
468 # Special extras...
469 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
470 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
471 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
472 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
473 fi
474 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
475 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
476 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
477 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt"
478 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt"
479 fi
480
481 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
482 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
483 fi
484
485 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
486 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
487 fi
488
489 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
490 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
491 fi
492
493 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
494 [extra flags to be used when compiling jdk c-files])])
495
496 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
497 [extra flags to be used when compiling jdk c++-files])])
498
499 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
500 [extra flags to be used when linking jdk])])
501
502 CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
503 CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
504 LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"
505
506 # Hotspot needs these set in their legacy form
507 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags"
508 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags"
509 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags"
510
511 AC_SUBST(LEGACY_EXTRA_CFLAGS)
512 AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
513 AC_SUBST(LEGACY_EXTRA_LDFLAGS)
514
515 ###############################################################################
516 #
517 # Now setup the CFLAGS and LDFLAGS for the JDK build.
518 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
519 #
520
521 # Setup compiler/platform specific flags into
522 # CFLAGS_JDK - C Compiler flags
523 # CXXFLAGS_JDK - C++ Compiler flags
524 # COMMON_CCXXFLAGS_JDK - common to C and C++
525 if test "x$TOOLCHAIN_TYPE" = xgcc; then
526 if test "x$OPENJDK_TARGET_CPU" = xx86; then
527 # Force compatibility with i586 on 32 bit intel platforms.
528 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586"
529 fi
530 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
531 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
532 case $OPENJDK_TARGET_CPU_ARCH in
533 arm )
534 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
535 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
536 ;;
537 ppc )
538 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing
539 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
540 ;;
541 * )
542 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer"
543 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
544 ;;
545 esac
546 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
547 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
548 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
549 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
550 fi
551
552 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
553 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
554 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
555 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
556 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
557 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
558 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK \
559 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
560 -DWIN32_LEAN_AND_MEAN \
561 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
562 -D_WINSOCK_DEPRECATED_NO_WARNINGS \
563 -DWIN32 -DIAL"
564 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
565 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64"
566 else
567 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86"
568 fi
569 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to
570 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual
571 # studio.
572 if test "x$TOOLCHAIN_VERSION" = "x2010"; then
573 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \
574 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"
575 fi
576 fi
577
578 ###############################################################################
579
580 # Adjust flags according to debug level.
581 case $DEBUG_LEVEL in
582 fastdebug | slowdebug )
583 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS"
584 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS"
585 JAVAC_FLAGS="$JAVAC_FLAGS -g"
586 ;;
587 release )
588 ;;
589 * )
590 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
591 ;;
592 esac
593
594 # Setup LP64
595 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64"
596
597 # Set some common defines. These works for all compilers, but assume
598 # -D is universally accepted.
599
600 # Setup endianness
601 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
602 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
603 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
604 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
605 # Note: -Dmacro is the same as #define macro 1
606 # -Dmacro= is the same as #define macro
607 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
608 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
609 else
610 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
611 fi
612 else
613 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they
614 # are defined in the system?
615 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
616 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN="
617 else
618 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN"
619 fi
620 fi
621
622 # Setup target OS define. Use OS target name but in upper case.
623 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
624 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
625
626 # Setup target CPU
627 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
628
629 # Setup debug/release defines
630 if test "x$DEBUG_LEVEL" = xrelease; then
631 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG"
632 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
633 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED"
634 fi
635 else
636 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG"
637 fi
638
639 # Set some additional per-OS defines.
640 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
641 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
642 elif test "x$OPENJDK_TARGET_OS" = xaix; then
643 # FIXME: PPC64 should not be here.
644 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DPPC64"
645 elif test "x$OPENJDK_TARGET_OS" = xbsd; then
646 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
647 fi
648
649 # Additional macosx handling
650 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
651 # Setting these parameters makes it an error to link to macosx APIs that are
652 # newer than the given OS version and makes the linked binaries compatible
653 # even if built on a newer version of the OS.
654 # The expected format is X.Y.Z
655 MACOSX_VERSION_MIN=10.7.0
656 AC_SUBST(MACOSX_VERSION_MIN)
657
658 # The macro takes the version with no dots, ex: 1070
659 # Let the flags variables get resolved in make for easier override on make
660 # command line.
661 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
662 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
663 fi
664
665 # Setup some hard coded includes
666 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \
667 -I${JDK_TOPDIR}/src/java.base/share/native/include \
668 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \
669 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include"
670
671 # The shared libraries are compiled using the picflag.
672 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
673 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
674
675 # Executable flags
676 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
677 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
678
679 AC_SUBST(CFLAGS_JDKLIB)
680 AC_SUBST(CFLAGS_JDKEXE)
681 AC_SUBST(CXXFLAGS_JDKLIB)
682 AC_SUBST(CXXFLAGS_JDKEXE)
683
684 # Flags for compiling test libraries
685 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
686 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
687
688 # Flags for compiling test executables
689 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
690 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
691
692 AC_SUBST(CFLAGS_TESTLIB)
693 AC_SUBST(CFLAGS_TESTEXE)
694 AC_SUBST(CXXFLAGS_TESTLIB)
695 AC_SUBST(CXXFLAGS_TESTEXE)
696
697 # Setup LDFLAGS et al.
698 #
699
700 # Now this is odd. The JDK native libraries have to link against libjvm.so
701 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
702 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
703 # is identical for client and server? Yes. Which is picked at runtime (client or server)?
704 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
705 # libraries will link to whatever is in memory. Yuck.
706 #
707 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
708 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
709 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
710 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
711 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
712 fi
713 # TODO: make -debug optional "--disable-full-debug-symbols"
714 LDFLAGS_JDK="$LDFLAGS_JDK -debug"
715 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
716 # If this is a --hash-style=gnu system, use --hash-style=both, why?
717 # We have previously set HAS_GNU_HASH if this is the case
718 if test -n "$HAS_GNU_HASH"; then
719 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both"
720 fi
721 if test "x$OPENJDK_TARGET_OS" = xlinux; then
722 # And since we now know that the linker is gnu, then add -z defs, to forbid
723 # undefined symbols in object files.
724 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs"
725 case $DEBUG_LEVEL in
726 release )
727 # tell linker to optimize libraries.
728 # Should this be supplied to the OSS linker as well?
729 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
730 ;;
731 slowdebug )
732 if test "x$HAS_LINKER_NOW" = "xtrue"; then
733 # do relocations at load
734 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_NOW_FLAG"
735 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_NOW_FLAG"
736 fi
737 if test "x$HAS_LINKER_RELRO" = "xtrue"; then
738 # mark relocations read only
739 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG"
740 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG"
741 fi
742 ;;
743 fastdebug )
744 if test "x$HAS_LINKER_RELRO" = "xtrue"; then
745 # mark relocations read only
746 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG"
747 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG"
748 fi
749 ;;
750 * )
751 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
752 ;;
753 esac
754 fi
755 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
756 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
757 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
758 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
759 LDFLAGS_JDK="${LDFLAGS_JDK} -brtl -bnolibpath -liconv -bexpall -bernotok"
760 fi
761
762 # Customize LDFLAGS for executables
763
764 LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
765
766 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
767 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
768 LDFLAGS_STACK_SIZE=1048576
769 else
770 LDFLAGS_STACK_SIZE=327680
771 fi
772 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE"
773 elif test "x$OPENJDK_TARGET_OS" = xlinux; then
774 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
775 fi
776
777 # Customize LDFLAGS for libs
778 LDFLAGS_JDKLIB="${LDFLAGS_JDK}"
779
780 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
781 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -dll -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base"
782 LDFLAGS_JDKLIB_SUFFIX=""
783 else
784 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS} \
785 -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}"
786
787 # On some platforms (mac) the linker warns about non existing -L dirs.
788 # Add server first if available. Linking aginst client does not always produce the same results.
789 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
790 # Default to server for other variants.
791 if test "x$JVM_VARIANT_SERVER" = xtrue; then
792 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
793 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
794 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client"
795 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
796 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
797 else
798 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
799 fi
800
801 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
802 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
803 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
804 fi
805 fi
806
807 AC_SUBST(LDFLAGS_JDKLIB)
808 AC_SUBST(LDFLAGS_JDKEXE)
809 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
810 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
811 AC_SUBST(LDFLAGS_CXX_JDK)
812
813 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB"
814 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE"
815 LDFLAGS_TESTLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX"
816 LDFLAGS_TESTEXE_SUFFIX="$LDFLAGS_JDKEXE_SUFFIX"
817
818 AC_SUBST(LDFLAGS_TESTLIB)
819 AC_SUBST(LDFLAGS_TESTEXE)
820 AC_SUBST(LDFLAGS_TESTLIB_SUFFIX)
821 AC_SUBST(LDFLAGS_TESTEXE_SUFFIX)
822 ])
823
824 # FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
825 # [RUN-IF-FALSE])
826 # ------------------------------------------------------------
827 # Check that the c and c++ compilers support an argument
828 AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS],
829 [
830 AC_MSG_CHECKING([if compiler supports "$1"])
831 supports=yes
832
833 saved_cflags="$CFLAGS"
834 CFLAGS="$CFLAGS $1"
835 AC_LANG_PUSH([C])
836 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
837 [supports=no])
838 AC_LANG_POP([C])
839 CFLAGS="$saved_cflags"
840
841 saved_cxxflags="$CXXFLAGS"
842 CXXFLAGS="$CXXFLAG $1"
843 AC_LANG_PUSH([C++])
844 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
845 [supports=no])
846 AC_LANG_POP([C++])
847 CXXFLAGS="$saved_cxxflags"
848
849 AC_MSG_RESULT([$supports])
850 if test "x$supports" = "xyes" ; then
851 m4_ifval([$2], [$2], [:])
852 else
853 m4_ifval([$3], [$3], [:])
854 fi
855 ])
856
857 # FLAGS_LINKER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
858 # [RUN-IF-FALSE])
859 # ------------------------------------------------------------
860 # Check that the linker support an argument
861 AC_DEFUN([FLAGS_LINKER_CHECK_ARGUMENTS],
862 [
863 AC_MSG_CHECKING([if linker supports "$1"])
864 supports=yes
865
866 saved_ldflags="$LDFLAGS"
867 LDFLAGS="$LDFLAGS $1"
868 AC_LANG_PUSH([C])
869 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],
870 [], [supports=no])
871 AC_LANG_POP([C])
872 LDFLAGS="$saved_ldflags"
873
874 AC_MSG_RESULT([$supports])
875 if test "x$supports" = "xyes" ; then
876 m4_ifval([$2], [$2], [:])
877 else
878 m4_ifval([$3], [$3], [:])
879 fi
880 ])
881
882 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
883 [
884 # Some Zero and Shark settings.
885 # ZERO_ARCHFLAG tells the compiler which mode to build for
886 case "${OPENJDK_TARGET_CPU}" in
887 s390)
888 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
889 ;;
890 *)
891 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
892 esac
893 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])
894 AC_SUBST(ZERO_ARCHFLAG)
895
896 # Check that the compiler supports -mX (or -qX on AIX) flags
897 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
898 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
899 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
900 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
901 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
902
903 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors],
904 [do not consider native warnings to be an error @<:@enabled@:>@])])
905
906 AC_MSG_CHECKING([if native warnings are errors])
907 if test "x$enable_warnings_as_errors" = "xyes"; then
908 AC_MSG_RESULT([yes (explicitely set)])
909 WARNINGS_AS_ERRORS=true
910 elif test "x$enable_warnings_as_errors" = "xno"; then
911 AC_MSG_RESULT([no])
912 WARNINGS_AS_ERRORS=false
913 elif test "x$enable_warnings_as_errors" = "x"; then
914 AC_MSG_RESULT([yes (default)])
915 WARNINGS_AS_ERRORS=true
916 else
917 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument])
918 fi
919 AC_SUBST(WARNINGS_AS_ERRORS)
920
921 case "${TOOLCHAIN_TYPE}" in
922 microsoft)
923 DISABLE_WARNING_PREFIX="-wd"
924 CFLAGS_WARNINGS_ARE_ERRORS="-WX"
925 ;;
926 solstudio)
927 DISABLE_WARNING_PREFIX="-erroff="
928 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all"
929 ;;
930 gcc)
931 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error
932 FLAGS_COMPILER_CHECK_ARGUMENTS([-Wno-this-is-a-warning-that-do-not-exist],
933 [GCC_CAN_DISABLE_WARNINGS=true],
934 [GCC_CAN_DISABLE_WARNINGS=false]
935 )
936 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then
937 DISABLE_WARNING_PREFIX="-Wno-"
938 else
939 DISABLE_WARNING_PREFIX=
940 fi
941 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
942 ;;
943 clang)
944 DISABLE_WARNING_PREFIX="-Wno-"
945 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
946 ;;
947 esac
948 AC_SUBST(DISABLE_WARNING_PREFIX)
949 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
950 ])