1 #
2 # Copyright (c) 2011, 2014, 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$TOOLCHAIN_TYPE" = xmicrosoft; then
97 RC_FLAGS="-nologo -l 0x409 -r"
98 if test "x$VARIANT" = xOPT; then
99 RC_FLAGS="$RC_FLAGS -d NDEBUG"
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 # FIXME: likely bug, should be CCXXFLAGS_JDK? or one for C or CXX.
120 CCXXFLAGS="$CCXXFLAGS -nologo"
121 fi
122 ])
123
124 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
125 [
126 ###############################################################################
127 #
128 # How to compile shared libraries.
129 #
130
131 if test "x$TOOLCHAIN_TYPE" = xgcc; then
132 PICFLAG="-fPIC"
133 C_FLAG_REORDER=''
134 CXX_FLAG_REORDER=''
135
136 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
137 # Linking is different on MacOSX
138 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
139 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
140 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
141 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
142 SET_SHARED_LIBRARY_MAPFILE=''
143 else
144 # Default works for linux, might work on other platforms as well.
145 SHARED_LIBRARY_FLAGS='-shared'
146 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
147 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"
148 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
149 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
150 fi
151 elif test "x$TOOLCHAIN_TYPE" = xclang; then
152 PICFLAG=''
153 C_FLAG_REORDER=''
154 CXX_FLAG_REORDER=''
155
156 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
157 # Linking is different on MacOSX
158 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
159 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
160 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
161 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
162 SET_SHARED_LIBRARY_MAPFILE=''
163 else
164 # Default works for linux, might work on other platforms as well.
165 SHARED_LIBRARY_FLAGS='-shared'
166 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
167 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"
168 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
169 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
170 fi
171 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
172 PICFLAG="-KPIC"
173 C_FLAG_REORDER='-xF'
174 CXX_FLAG_REORDER='-xF'
175 SHARED_LIBRARY_FLAGS="-G"
176 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'
177 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
178 SET_SHARED_LIBRARY_NAME=''
179 SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
180 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
181 PICFLAG="-qpic=large"
182 C_FLAG_REORDER=''
183 CXX_FLAG_REORDER=''
184 SHARED_LIBRARY_FLAGS="-qmkshrobj"
185 SET_EXECUTABLE_ORIGIN=""
186 SET_SHARED_LIBRARY_ORIGIN=''
187 SET_SHARED_LIBRARY_NAME=''
188 SET_SHARED_LIBRARY_MAPFILE=''
189 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
190 PICFLAG=""
191 C_FLAG_REORDER=''
192 CXX_FLAG_REORDER=''
193 SHARED_LIBRARY_FLAGS="-LD"
194 SET_EXECUTABLE_ORIGIN=''
195 SET_SHARED_LIBRARY_ORIGIN=''
196 SET_SHARED_LIBRARY_NAME=''
197 SET_SHARED_LIBRARY_MAPFILE=''
198 fi
199
200 AC_SUBST(C_FLAG_REORDER)
201 AC_SUBST(CXX_FLAG_REORDER)
202 AC_SUBST(SHARED_LIBRARY_FLAGS)
203 AC_SUBST(SET_EXECUTABLE_ORIGIN)
204 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
205 AC_SUBST(SET_SHARED_LIBRARY_NAME)
206 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
207
208 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
209 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
210 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
211 CFLAGS_JDKLIB_EXTRA='-xstrconst'
212 fi
213 # The (cross) compiler is now configured, we can now test capabilities
214 # of the target platform.
215 ])
216
217 # Documentation on common flags used for solstudio in HIGHEST.
218 #
219 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
220 # done with care, there are some assumptions below that need to
221 # be understood about the use of pointers, and IEEE behavior.
222 #
223 # -fns: Use non-standard floating point mode (not IEEE 754)
224 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)
225 # -fsingle: Use single precision floating point with 'float'
226 # -xalias_level=basic: Assume memory references via basic pointer types do not alias
227 # (Source with excessing pointer casting and data access with mixed
228 # pointer types are not recommended)
229 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions
230 # (If you expect perfect errno behavior, do not use this)
231 # -xdepend: Loop data dependency optimizations (need -xO3 or higher)
232 # -xrestrict: Pointer parameters to functions do not overlap
233 # (Similar to -xalias_level=basic usage, but less obvious sometimes.
234 # If you pass in multiple pointers to the same data, do not use this)
235 # -xlibmil: Inline some library routines
236 # (If you expect perfect errno behavior, do not use this)
237 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)
238 # (If you expect perfect errno behavior, do not use this)
239 # Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
240
241 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.
242 # Bug?
243 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then
244 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
245 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
246 #fi
247
248 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
249 [
250
251 ###############################################################################
252 #
253 # Setup the opt flags for different compilers
254 # and different operating systems.
255 #
256
257 # FIXME: this was indirectly the old default, but just inherited.
258 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
259 # C_FLAG_DEPS="-MMD -MF"
260 # fi
261
262 # Generate make dependency files
263 if test "x$TOOLCHAIN_TYPE" = xgcc; then
264 C_FLAG_DEPS="-MMD -MF"
265 elif test "x$TOOLCHAIN_TYPE" = xclang; then
266 C_FLAG_DEPS="-MMD -MF"
267 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
268 C_FLAG_DEPS="-xMMD -xMF"
269 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
270 C_FLAG_DEPS="-qmakedep=gcc -MF"
271 fi
272 CXX_FLAG_DEPS="$C_FLAG_DEPS"
273 AC_SUBST(C_FLAG_DEPS)
274 AC_SUBST(CXX_FLAG_DEPS)
275
276 # Debug symbols
277 if test "x$TOOLCHAIN_TYPE" = xgcc; then
278 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
279 CFLAGS_DEBUG_SYMBOLS="-g1"
280 CXXFLAGS_DEBUG_SYMBOLS="-g1"
281 else
282 CFLAGS_DEBUG_SYMBOLS="-g"
283 CXXFLAGS_DEBUG_SYMBOLS="-g"
284 fi
285 elif test "x$TOOLCHAIN_TYPE" = xclang; then
286 CFLAGS_DEBUG_SYMBOLS="-g"
287 CXXFLAGS_DEBUG_SYMBOLS="-g"
288 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
289 CFLAGS_DEBUG_SYMBOLS="-g -xs"
290 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
291 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
292 CFLAGS_DEBUG_SYMBOLS="-g"
293 CXXFLAGS_DEBUG_SYMBOLS="-g"
294 fi
295 AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
296 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
297
298 # Optimization levels
299 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
300 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil"
301
302 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
303 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
304 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr"
305 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
306 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
307 C_O_FLAG_NONE="-xregs=no%frameptr"
308 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
309 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
310 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
311 CXX_O_FLAG_NONE="-xregs=no%frameptr"
312 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
313 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
314 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
315 fi
316 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
317 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra"
318 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
319 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
320 C_O_FLAG_NONE=""
321 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
322 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
323 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
324 CXX_O_FLAG_NONE=""
325 fi
326 else
327 # The remaining toolchains share opt flags between CC and CXX;
328 # setup for C and duplicate afterwards.
329 if test "x$TOOLCHAIN_TYPE" = xgcc; then
330 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
331 # On MacOSX we optimize for size, something
332 # we should do for all platforms?
333 C_O_FLAG_HIGHEST="-Os"
334 C_O_FLAG_HI="-Os"
335 C_O_FLAG_NORM="-Os"
336 C_O_FLAG_NONE=""
337 else
338 C_O_FLAG_HIGHEST="-O3"
339 C_O_FLAG_HI="-O3"
340 C_O_FLAG_NORM="-O2"
341 C_O_FLAG_NONE="-O0"
342 fi
343 elif test "x$TOOLCHAIN_TYPE" = xclang; then
344 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
345 # On MacOSX we optimize for size, something
346 # we should do for all platforms?
347 C_O_FLAG_HIGHEST="-Os"
348 C_O_FLAG_HI="-Os"
349 C_O_FLAG_NORM="-Os"
350 C_O_FLAG_NONE=""
351 else
352 C_O_FLAG_HIGHEST="-O3"
353 C_O_FLAG_HI="-O3"
354 C_O_FLAG_NORM="-O2"
355 C_O_FLAG_NONE="-O0"
356 fi
357 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
358 C_O_FLAG_HIGHEST="-O3"
359 C_O_FLAG_HI="-O3 -qstrict"
360 C_O_FLAG_NORM="-O2"
361 C_O_FLAG_NONE=""
362 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
363 C_O_FLAG_HIGHEST="-O2"
364 C_O_FLAG_HI="-O1"
365 C_O_FLAG_NORM="-O1"
366 C_O_FLAG_NONE="-Od"
367 fi
368 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
369 CXX_O_FLAG_HI="$C_O_FLAG_HI"
370 CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
371 CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
372 fi
373
374 AC_SUBST(C_O_FLAG_HIGHEST)
375 AC_SUBST(C_O_FLAG_HI)
376 AC_SUBST(C_O_FLAG_NORM)
377 AC_SUBST(C_O_FLAG_NONE)
378 AC_SUBST(CXX_O_FLAG_HIGHEST)
379 AC_SUBST(CXX_O_FLAG_HI)
380 AC_SUBST(CXX_O_FLAG_NORM)
381 AC_SUBST(CXX_O_FLAG_NONE)
382 ])
383
384 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
385 [
386 # Special extras...
387 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
388 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
389 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
390 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
391 fi
392 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
393 LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall"
394 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
395 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
396 fi
397
398 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
399 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
400 fi
401
402 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
403 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
404 fi
405
406 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
407 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
408 fi
409
410 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
411 [extra flags to be used when compiling jdk c-files])])
412
413 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
414 [extra flags to be used when compiling jdk c++-files])])
415
416 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
417 [extra flags to be used when linking jdk])])
418
419 CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
420 CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
421 LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"
422
423 # Hotspot needs these set in their legacy form
424 LEGACY_EXTRA_CFLAGS=$with_extra_cflags
425 LEGACY_EXTRA_CXXFLAGS=$with_extra_cxxflags
426 LEGACY_EXTRA_LDFLAGS=$with_extra_ldflags
427
428 AC_SUBST(LEGACY_EXTRA_CFLAGS)
429 AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
430 AC_SUBST(LEGACY_EXTRA_LDFLAGS)
431
432 ###############################################################################
433 #
434 # Now setup the CFLAGS and LDFLAGS for the JDK build.
435 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
436 #
437
438 # Setup compiler/platform specific flags to CFLAGS_JDK,
439 # CXXFLAGS_JDK and CCXXFLAGS_JDK (common to C and CXX?)
440 if test "x$TOOLCHAIN_TYPE" = xgcc; then
441 # these options are used for both C and C++ compiles
442 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Wall -Wno-parentheses -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
443 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
444 case $OPENJDK_TARGET_CPU_ARCH in
445 arm )
446 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
447 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
448 ;;
449 ppc )
450 # on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing
451 ;;
452 * )
453 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer"
454 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
455 ;;
456 esac
457 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
458 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
459 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
460 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
461 CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"
462 fi
463
464 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
465 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
466 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
467 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
468 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
469 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
470 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
471 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB -DWIN32_LEAN_AND_MEAN \
472 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
473 -DWIN32 -DIAL"
474 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
475 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64"
476 else
477 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86"
478 fi
479 fi
480
481 ###############################################################################
482
483 # Adjust flags according to debug level.
484 case $DEBUG_LEVEL in
485 fastdebug )
486 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
487 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
488 C_O_FLAG_HI="$C_O_FLAG_NORM"
489 C_O_FLAG_NORM="$C_O_FLAG_NORM"
490 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
491 CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM"
492 JAVAC_FLAGS="$JAVAC_FLAGS -g"
493 ;;
494 slowdebug )
495 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
496 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
497 C_O_FLAG_HI="$C_O_FLAG_NONE"
498 C_O_FLAG_NORM="$C_O_FLAG_NONE"
499 CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"
500 CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"
501 JAVAC_FLAGS="$JAVAC_FLAGS -g"
502 ;;
503 esac
504
505 # Setup LP64
506 CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64"
507
508 # Set some common defines. These works for all compilers, but assume
509 # -D is universally accepted.
510
511 # Setup endianness
512 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
513 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
514 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
515 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
516 # Note: -Dmacro is the same as #define macro 1
517 # -Dmacro= is the same as #define macro
518 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
519 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
520 else
521 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
522 fi
523 else
524 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN"
525 fi
526
527 # Setup target OS define. Use OS target name but in upper case.
528 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
529 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
530
531 # Setup target CPU
532 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
533
534 # Setup debug/release defines
535 if test "x$DEBUG_LEVEL" = xrelease; then
536 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG"
537 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
538 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED"
539 fi
540 else
541 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG"
542 fi
543
544 # Setup release name
545 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'"
546
547
548 # Set some additional per-OS defines.
549 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
550 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
551 elif test "x$OPENJDK_TARGET_OS" = xaix; then
552 # FIXME: PPC64 should not be here.
553 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DPPC64"
554 elif test "x$OPENJDK_TARGET_OS" = xbsd; then
555 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
556 fi
557
558 # Additional macosx handling
559 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
560 if test "x$TOOLCHAIN_TYPE" = xgcc; then
561 # FIXME: This needs to be exported in spec.gmk due to closed legacy code.
562 # FIXME: clean this up, and/or move it elsewhere.
563
564 # Setting these parameters makes it an error to link to macosx APIs that are
565 # newer than the given OS version and makes the linked binaries compatible
566 # even if built on a newer version of the OS.
567 # The expected format is X.Y.Z
568 MACOSX_VERSION_MIN=10.7.0
569 AC_SUBST(MACOSX_VERSION_MIN)
570
571 # The macro takes the version with no dots, ex: 1070
572 # Let the flags variables get resolved in make for easier override on make
573 # command line.
574 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
575 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
576 fi
577 fi
578
579 # Setup some hard coded includes
580 CCXXFLAGS_JDK="$CCXXFLAGS_JDK \
581 -I${JDK_OUTPUTDIR}/include \
582 -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \
583 -I${JDK_TOPDIR}/src/share/javavm/export \
584 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \
585 -I${JDK_TOPDIR}/src/share/native/common \
586 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common"
587
588 # The shared libraries are compiled using the picflag.
589 CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
590 CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "
591
592 # Executable flags
593 CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK"
594 CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK"
595
596 AC_SUBST(CFLAGS_JDKLIB)
597 AC_SUBST(CFLAGS_JDKEXE)
598 AC_SUBST(CXXFLAGS_JDKLIB)
599 AC_SUBST(CXXFLAGS_JDKEXE)
600
601 # Setup LDFLAGS et al.
602 #
603 # Now this is odd. The JDK native libraries have to link against libjvm.so
604 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
605 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
606 # is identical for client and server? Yes. Which is picked at runtime (client or server)?
607 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
608 # libraries will link to whatever is in memory. Yuck.
609 #
610 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
611 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
612 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
613 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
614 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
615 fi
616 # TODO: make -debug optional "--disable-full-debug-symbols"
617 LDFLAGS_JDK="$LDFLAGS_JDK -debug"
618 LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib"
619 LDFLAGS_JDKLIB_SUFFIX=""
620 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
621 LDFLAGS_STACK_SIZE=1048576
622 else
623 LDFLAGS_STACK_SIZE=327680
624 fi
625 LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE"
626 else
627 if test "x$TOOLCHAIN_TYPE" = xgcc; then
628 # If this is a --hash-style=gnu system, use --hash-style=both, why?
629 # We have previously set HAS_GNU_HASH if this is the case
630 if test -n "$HAS_GNU_HASH"; then
631 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both "
632 fi
633 if test "x$OPENJDK_TARGET_OS" = xlinux; then
634 # And since we now know that the linker is gnu, then add -z defs, to forbid
635 # undefined symbols in object files.
636 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs"
637 if test "x$DEBUG_LEVEL" = "xrelease"; then
638 # When building release libraries, tell the linker optimize them.
639 # Should this be supplied to the OSS linker as well?
640 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
641 fi
642 fi
643 fi
644
645 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
646 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
647 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
648 fi
649
650 LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \
651 -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}"
652
653 # On some platforms (mac) the linker warns about non existing -L dirs.
654 # Add server first if available. Linking aginst client does not always produce the same results.
655 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
656 # Default to server for other variants.
657 if test "x$JVM_VARIANT_SERVER" = xtrue; then
658 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
659 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
660 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client"
661 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
662 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
663 else
664 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
665 fi
666
667 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
668 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
669 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
670 fi
671
672 LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
673 if test "x$OPENJDK_TARGET_OS" = xlinux; then
674 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
675 fi
676 fi
677 AC_SUBST(LDFLAGS_JDKLIB)
678 AC_SUBST(LDFLAGS_JDKEXE)
679 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
680 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
681 AC_SUBST(LDFLAGS_CXX_JDK)
682 ])
683
684
685 # FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
686 # [RUN-IF-FALSE])
687 # ------------------------------------------------------------
688 # Check that the c and c++ compilers support an argument
689 AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS],
690 [
691 AC_MSG_CHECKING([if compiler supports "$1"])
692 supports=yes
693
694 saved_cflags="$CFLAGS"
695 CFLAGS="$CFLAGS $1"
696 AC_LANG_PUSH([C])
697 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
698 [supports=no])
699 AC_LANG_POP([C])
700 CFLAGS="$saved_cflags"
701
702 saved_cxxflags="$CXXFLAGS"
703 CXXFLAGS="$CXXFLAG $1"
704 AC_LANG_PUSH([C++])
705 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
706 [supports=no])
707 AC_LANG_POP([C++])
708 CXXFLAGS="$saved_cxxflags"
709
710 AC_MSG_RESULT([$supports])
711 if test "x$supports" = "xyes" ; then
712 m4_ifval([$2], [$2], [:])
713 else
714 m4_ifval([$3], [$3], [:])
715 fi
716 ])
717
718 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
719 [
720 # Some Zero and Shark settings.
721 # ZERO_ARCHFLAG tells the compiler which mode to build for
722 case "${OPENJDK_TARGET_CPU}" in
723 s390)
724 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
725 ;;
726 *)
727 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
728 esac
729 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])
730 AC_SUBST(ZERO_ARCHFLAG)
731
732 # Check that the compiler supports -mX (or -qX on AIX) flags
733 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
734 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
735 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
736 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
737 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
738
739 case "${TOOLCHAIN_TYPE}" in
740 microsoft)
741 CFLAGS_WARNINGS_ARE_ERRORS="/WX"
742 ;;
743 solstudio)
744 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all"
745 ;;
746 gcc)
747 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
748 ;;
749 clang)
750 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
751 ;;
752 esac
753 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
754 ])