1 #
2 # Copyright (c) 2011, 2018, 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="$CCXXFLAGS -nologo"
121 fi
122
123 if test "x$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$OPENJDK_TARGET_CPU_ISADIR"
133 fi
134 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
135 SYSROOT_CFLAGS="--sysroot=\"$SYSROOT\""
136 SYSROOT_LDFLAGS="--sysroot=\"$SYSROOT\""
137 elif test "x$TOOLCHAIN_TYPE" = xclang; then
138 SYSROOT_CFLAGS="-isysroot \"$SYSROOT\""
139 SYSROOT_LDFLAGS="-isysroot \"$SYSROOT\""
140 fi
141 # Propagate the sysroot args to hotspot
142 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $SYSROOT_CFLAGS"
143 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $SYSROOT_CFLAGS"
144 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $SYSROOT_LDFLAGS"
145 fi
146 AC_SUBST(SYSROOT_CFLAGS)
147 AC_SUBST(SYSROOT_LDFLAGS)
148 ])
149
150 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
151 [
152 ###############################################################################
153 #
154 # How to compile shared libraries.
155 #
156
157 if test "x$TOOLCHAIN_TYPE" = xgcc; then
158 PICFLAG="-fPIC"
159 C_FLAG_REORDER=''
160 CXX_FLAG_REORDER=''
161
162 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
163 # Linking is different on MacOSX
164 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
165 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker @loader_path/.'
166 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
167 SET_SHARED_LIBRARY_NAME='-Xlinker -install_name -Xlinker @rpath/[$]1'
168 SET_SHARED_LIBRARY_MAPFILE=''
169 else
170 # Default works for linux, might work on other platforms as well.
171 SHARED_LIBRARY_FLAGS='-shared'
172 SET_EXECUTABLE_ORIGIN='-Xlinker -rpath -Xlinker \$$$$ORIGIN[$]1'
173 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"
174 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
175 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
176 fi
177 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
178 PICFLAG="-KPIC"
179 C_FLAG_REORDER='-xF'
180 CXX_FLAG_REORDER='-xF'
181 SHARED_LIBRARY_FLAGS="-G"
182 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'
183 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
184 SET_SHARED_LIBRARY_NAME=''
185 SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
186 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
187 PICFLAG="-qpic=large"
188 C_FLAG_REORDER=''
189 CXX_FLAG_REORDER=''
190 SHARED_LIBRARY_FLAGS="-qmkshrobj"
191 SET_EXECUTABLE_ORIGIN=""
192 SET_SHARED_LIBRARY_ORIGIN=''
193 SET_SHARED_LIBRARY_NAME=''
194 SET_SHARED_LIBRARY_MAPFILE=''
195 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
196 PICFLAG=""
197 C_FLAG_REORDER=''
198 CXX_FLAG_REORDER=''
199 SHARED_LIBRARY_FLAGS="-LD"
200 SET_EXECUTABLE_ORIGIN=''
201 SET_SHARED_LIBRARY_ORIGIN=''
202 SET_SHARED_LIBRARY_NAME=''
203 SET_SHARED_LIBRARY_MAPFILE=''
204 fi
205
206 AC_SUBST(C_FLAG_REORDER)
207 AC_SUBST(CXX_FLAG_REORDER)
208 AC_SUBST(SHARED_LIBRARY_FLAGS)
209 AC_SUBST(SET_EXECUTABLE_ORIGIN)
210 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
211 AC_SUBST(SET_SHARED_LIBRARY_NAME)
212 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
213
214 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
215 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
216 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
217 CFLAGS_JDKLIB_EXTRA='-xstrconst'
218 fi
219 # The (cross) compiler is now configured, we can now test capabilities
220 # of the target platform.
221 ])
222
223 # Documentation on common flags used for solstudio in HIGHEST.
224 #
225 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
226 # done with care, there are some assumptions below that need to
227 # be understood about the use of pointers, and IEEE behavior.
228 #
229 # -fns: Use non-standard floating point mode (not IEEE 754)
230 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)
231 # -fsingle: Use single precision floating point with 'float'
232 # -xalias_level=basic: Assume memory references via basic pointer types do not alias
233 # (Source with excessing pointer casting and data access with mixed
234 # pointer types are not recommended)
235 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions
236 # (If you expect perfect errno behavior, do not use this)
237 # -xdepend: Loop data dependency optimizations (need -xO3 or higher)
238 # -xrestrict: Pointer parameters to functions do not overlap
239 # (Similar to -xalias_level=basic usage, but less obvious sometimes.
240 # If you pass in multiple pointers to the same data, do not use this)
241 # -xlibmil: Inline some library routines
242 # (If you expect perfect errno behavior, do not use this)
243 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)
244 # (If you expect perfect errno behavior, do not use this)
245 # Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
246
247 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.
248 # Bug?
249 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then
250 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
251 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
252 #fi
253
254 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
255 [
256
257 ###############################################################################
258 #
259 # Setup the opt flags for different compilers
260 # and different operating systems.
261 #
262
263 # FIXME: this was indirectly the old default, but just inherited.
264 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
265 # C_FLAG_DEPS="-MMD -MF"
266 # fi
267
268 # Generate make dependency files
269 if test "x$TOOLCHAIN_TYPE" = xgcc; then
270 C_FLAG_DEPS="-MMD -MF"
271 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
272 C_FLAG_DEPS="-xMMD -xMF"
273 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
274 C_FLAG_DEPS="-qmakedep=gcc -MF"
275 fi
276 CXX_FLAG_DEPS="$C_FLAG_DEPS"
277 AC_SUBST(C_FLAG_DEPS)
278 AC_SUBST(CXX_FLAG_DEPS)
279
280 # Debug symbols
281 if test "x$TOOLCHAIN_TYPE" = xgcc; then
282 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
283 CFLAGS_DEBUG_SYMBOLS="-g1"
284 CXXFLAGS_DEBUG_SYMBOLS="-g1"
285 else
286 CFLAGS_DEBUG_SYMBOLS="-g"
287 CXXFLAGS_DEBUG_SYMBOLS="-g"
288 fi
289 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
290 CFLAGS_DEBUG_SYMBOLS="-g -xs"
291 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
292 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
293 CFLAGS_DEBUG_SYMBOLS="-g"
294 CXXFLAGS_DEBUG_SYMBOLS="-g"
295 fi
296 AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
297 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
298
299 # Optimization levels
300 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
301 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xalias_level=basic -xbuiltin=%all -xdepend -xrestrict -xlibmil"
302
303 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
304 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
305 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xregs=no%frameptr"
306 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
307 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
308 C_O_FLAG_NONE="-xregs=no%frameptr"
309 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
310 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
311 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
312 CXX_O_FLAG_NONE="-xregs=no%frameptr"
313 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
314 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
315 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
316 fi
317 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
318 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
319 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
320 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
321 C_O_FLAG_NONE=""
322 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
323 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
324 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
325 CXX_O_FLAG_NONE=""
326 fi
327 else
328 # The remaining toolchains share opt flags between CC and CXX;
329 # setup for C and duplicate afterwards.
330 if test "x$TOOLCHAIN_TYPE" = xgcc; then
331 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
332 # On MacOSX we optimize for size, something
333 # we should do for all platforms?
334 C_O_FLAG_HIGHEST="-Os"
335 C_O_FLAG_HI="-Os"
336 C_O_FLAG_NORM="-Os"
337 C_O_FLAG_NONE=""
338 else
339 C_O_FLAG_HIGHEST="-O3"
340 C_O_FLAG_HI="-O3"
341 C_O_FLAG_NORM="-O2"
342 C_O_FLAG_NONE="-O0"
343 fi
344 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
345 C_O_FLAG_HIGHEST="-O3"
346 C_O_FLAG_HI="-O3 -qstrict"
347 C_O_FLAG_NORM="-O2"
348 C_O_FLAG_NONE=""
349 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
350 C_O_FLAG_HIGHEST="-O2"
351 C_O_FLAG_HI="-O1"
352 C_O_FLAG_NORM="-O1"
353 C_O_FLAG_NONE="-Od"
354 fi
355 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
356 CXX_O_FLAG_HI="$C_O_FLAG_HI"
357 CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
358 CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
359 fi
360
361 AC_SUBST(C_O_FLAG_HIGHEST)
362 AC_SUBST(C_O_FLAG_HI)
363 AC_SUBST(C_O_FLAG_NORM)
364 AC_SUBST(C_O_FLAG_NONE)
365 AC_SUBST(CXX_O_FLAG_HIGHEST)
366 AC_SUBST(CXX_O_FLAG_HI)
367 AC_SUBST(CXX_O_FLAG_NORM)
368 AC_SUBST(CXX_O_FLAG_NONE)
369 ])
370
371 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
372 [
373 # Special extras...
374 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
375 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
376 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
377 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
378 fi
379 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
380 LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall"
381 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
382 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
383 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
384 $2CXXSTD_CXXFLAG="-std=gnu++98"
385 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]$2CXXSTD_CXXFLAG -Werror],
386 [], [$2CXXSTD_CXXFLAG=""])
387 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}"
388 $2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}"
389 AC_SUBST($2CXXSTD_CXXFLAG)
390 fi
391
392 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
393 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
394 fi
395
396 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
397 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
398 fi
399
400 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
401 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
402 fi
403
404 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
405 [extra flags to be used when compiling jdk c-files])])
406
407 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
408 [extra flags to be used when compiling jdk c++-files])])
409
410 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
411 [extra flags to be used when linking jdk])])
412
413 CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
414 CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
415 LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"
416
417 # Hotspot needs these set in their legacy form
418 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags"
419 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags"
420 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags"
421
422 AC_SUBST(LEGACY_EXTRA_CFLAGS)
423 AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
424 AC_SUBST(LEGACY_EXTRA_LDFLAGS)
425
426 ###############################################################################
427 #
428 # Now setup the CFLAGS and LDFLAGS for the JDK build.
429 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
430 #
431
432 # Setup compiler/platform specific flags to CFLAGS_JDK,
433 # CXXFLAGS_JDK and CCXXFLAGS_JDK (common to C and CXX?)
434 if test "x$TOOLCHAIN_TYPE" = xgcc; then
435 # these options are used for both C and C++ compiles
436 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Wall -Wno-parentheses -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
437 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
438 case $OPENJDK_TARGET_CPU_ARCH in
439 arm )
440 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
441 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
442 ;;
443 ppc )
444 # on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing
445 ;;
446 * )
447 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer"
448 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
449 ;;
450 esac
451 TOOLCHAIN_CHECK_COMPILER_VERSION(6, FLAGS_SETUP_GCC6_COMPILER_FLAGS)
452 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
453 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
454 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
455 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
456 CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"
457 fi
458
459 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
460 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
461 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
462 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
463 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
464 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
465 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK \
466 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
467 -DWIN32_LEAN_AND_MEAN \
468 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
469 -DWIN32 -DIAL"
470 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
471 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64"
472 else
473 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86"
474 fi
475 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to
476 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual
477 # studio.
478 if test "x$TOOLCHAIN_VERSION" = "x2010"; then
479 CXXFLAGS_JDK="$CXXFLAGS_JDK \
480 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"
481 fi
482 fi
483
484 ###############################################################################
485
486 # Adjust flags according to debug level.
487 case $DEBUG_LEVEL in
488 fastdebug )
489 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
490 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
491 C_O_FLAG_HI="$C_O_FLAG_NORM"
492 C_O_FLAG_NORM="$C_O_FLAG_NORM"
493 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
494 CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM"
495 JAVAC_FLAGS="$JAVAC_FLAGS -g"
496 ;;
497 slowdebug )
498 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
499 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
500 C_O_FLAG_HI="$C_O_FLAG_NONE"
501 C_O_FLAG_NORM="$C_O_FLAG_NONE"
502 CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"
503 CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"
504 JAVAC_FLAGS="$JAVAC_FLAGS -g"
505 ;;
506 esac
507
508 # Setup LP64
509 CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64"
510
511 # Set some common defines. These works for all compilers, but assume
512 # -D is universally accepted.
513
514 # Setup endianness
515 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
516 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
517 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
518 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
519 # Note: -Dmacro is the same as #define macro 1
520 # -Dmacro= is the same as #define macro
521 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
522 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
523 else
524 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
525 fi
526 else
527 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they
528 # are defined in the system?
529 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
530 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN="
531 else
532 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN"
533 fi
534 fi
535
536 # Setup target OS define. Use OS target name but in upper case.
537 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
538 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
539
540 # Setup target CPU
541 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
542
543 # Setup debug/release defines
544 if test "x$DEBUG_LEVEL" = xrelease; then
545 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG"
546 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
547 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED"
548 fi
549 else
550 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG"
551 fi
552
553 # Setup release name
554 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'"
555
556
557 # Set some additional per-OS defines.
558 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
559 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
560 elif test "x$OPENJDK_TARGET_OS" = xaix; then
561 # FIXME: PPC64 should not be here.
562 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DPPC64"
563 elif test "x$OPENJDK_TARGET_OS" = xbsd; then
564 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
565 fi
566
567 # Additional macosx handling
568 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
569 if test "x$TOOLCHAIN_TYPE" = xgcc; then
570 # FIXME: This needs to be exported in spec.gmk due to closed legacy code.
571 # FIXME: clean this up, and/or move it elsewhere.
572
573 # Setting these parameters makes it an error to link to macosx APIs that are
574 # newer than the given OS version and makes the linked binaries compatible
575 # even if built on a newer version of the OS.
576 # The expected format is X.Y.Z
577 MACOSX_VERSION_MIN=10.7.0
578 AC_SUBST(MACOSX_VERSION_MIN)
579
580 # The macro takes the version with no dots, ex: 1070
581 # Let the flags variables get resolved in make for easier override on make
582 # command line.
583 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
584 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
585 fi
586 fi
587
588 # Setup some hard coded includes
589 CCXXFLAGS_JDK="$CCXXFLAGS_JDK \
590 -I${JDK_OUTPUTDIR}/include \
591 -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \
592 -I${JDK_TOPDIR}/src/share/javavm/export \
593 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \
594 -I${JDK_TOPDIR}/src/share/native/common \
595 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common"
596
597 # The shared libraries are compiled using the picflag.
598 CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
599 CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "
600
601 # Executable flags
602 CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK"
603 CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK"
604
605 AC_SUBST(CFLAGS_JDKLIB)
606 AC_SUBST(CFLAGS_JDKEXE)
607 AC_SUBST(CXXFLAGS_JDKLIB)
608 AC_SUBST(CXXFLAGS_JDKEXE)
609
610 # Setup LDFLAGS et al.
611 #
612 # Now this is odd. The JDK native libraries have to link against libjvm.so
613 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
614 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
615 # is identical for client and server? Yes. Which is picked at runtime (client or server)?
616 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
617 # libraries will link to whatever is in memory. Yuck.
618 #
619 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
620 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
621 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
622 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
623 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
624 fi
625 # TODO: make -debug optional "--disable-full-debug-symbols"
626 LDFLAGS_JDK="$LDFLAGS_JDK -debug"
627 LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib"
628 LDFLAGS_JDKLIB_SUFFIX=""
629 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
630 LDFLAGS_STACK_SIZE=1048576
631 else
632 LDFLAGS_STACK_SIZE=327680
633 fi
634 LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE"
635 else
636 if test "x$TOOLCHAIN_TYPE" = xgcc; then
637 # If this is a --hash-style=gnu system, use --hash-style=both, why?
638 # We have previously set HAS_GNU_HASH if this is the case
639 if test -n "$HAS_GNU_HASH"; then
640 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both "
641 fi
642 if test "x$OPENJDK_TARGET_OS" = xlinux; then
643 # And since we now know that the linker is gnu, then add -z defs, to forbid
644 # undefined symbols in object files.
645 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs"
646 if test "x$DEBUG_LEVEL" = "xrelease"; then
647 # When building release libraries, tell the linker optimize them.
648 # Should this be supplied to the OSS linker as well?
649 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
650 fi
651 fi
652 fi
653
654 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
655 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
656 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
657 fi
658
659 LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \
660 -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}"
661
662 # On some platforms (mac) the linker warns about non existing -L dirs.
663 # Add server first if available. Linking aginst client does not always produce the same results.
664 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
665 # Default to server for other variants.
666 if test "x$JVM_VARIANT_SERVER" = xtrue; then
667 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
668 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
669 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client"
670 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
671 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
672 else
673 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
674 fi
675
676 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
677 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
678 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
679 fi
680
681 LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
682 if test "x$OPENJDK_TARGET_OS" = xlinux; then
683 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
684 fi
685 fi
686 AC_SUBST(LDFLAGS_JDKLIB)
687 AC_SUBST(LDFLAGS_JDKEXE)
688 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
689 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
690 AC_SUBST(LDFLAGS_CXX_JDK)
691 ])
692
693
694 # FLAGS_C_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
695 # [RUN-IF-FALSE])
696 # ------------------------------------------------------------
697 # Check that the C compiler supports an argument
698 AC_DEFUN([FLAGS_C_COMPILER_CHECK_ARGUMENTS],
699 [
700 AC_MSG_CHECKING([if the C compiler supports "$1"])
701 supports=yes
702
703 saved_cflags="$CFLAGS"
704 CFLAGS="$CFLAGS $1"
705 AC_LANG_PUSH([C])
706 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
707 [supports=no])
708 AC_LANG_POP([C])
709 CFLAGS="$saved_cflags"
710
711 AC_MSG_RESULT([$supports])
712 if test "x$supports" = "xyes" ; then
713 m4_ifval([$2], [$2], [:])
714 else
715 m4_ifval([$3], [$3], [:])
716 fi
717 ])
718
719 # FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
720 # [RUN-IF-FALSE])
721 # ------------------------------------------------------------
722 # Check that the C++ compiler supports an argument
723 AC_DEFUN([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS],
724 [
725 AC_MSG_CHECKING([if the C++ compiler supports "$1"])
726 supports=yes
727
728 saved_cxxflags="$CXXFLAGS"
729 CXXFLAGS="$CXXFLAG $1"
730 AC_LANG_PUSH([C++])
731 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
732 [supports=no])
733 AC_LANG_POP([C++])
734 CXXFLAGS="$saved_cxxflags"
735
736 AC_MSG_RESULT([$supports])
737 if test "x$supports" = "xyes" ; then
738 m4_ifval([$2], [$2], [:])
739 else
740 m4_ifval([$3], [$3], [:])
741 fi
742 ])
743
744 # FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
745 # [RUN-IF-FALSE])
746 # ------------------------------------------------------------
747 # Check that the C and C++ compilers support an argument
748 AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS],
749 [
750 FLAGS_C_COMPILER_CHECK_ARGUMENTS([$1],
751 [C_COMP_SUPPORTS="yes"],
752 [C_COMP_SUPPORTS="no"])
753 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([$1],
754 [CXX_COMP_SUPPORTS="yes"],
755 [CXX_COMP_SUPPORTS="no"])
756
757 AC_MSG_CHECKING([if both compilers support "$1"])
758 supports=no
759 if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
760
761 AC_MSG_RESULT([$supports])
762 if test "x$supports" = "xyes" ; then
763 m4_ifval([$2], [$2], [:])
764 else
765 m4_ifval([$3], [$3], [:])
766 fi
767 ])
768
769 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
770 [
771 # Some Zero and Shark settings.
772 # ZERO_ARCHFLAG tells the compiler which mode to build for
773 case "${OPENJDK_TARGET_CPU}" in
774 s390)
775 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
776 ;;
777 *)
778 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
779 esac
780 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])
781 AC_SUBST(ZERO_ARCHFLAG)
782
783 # Check that the compiler supports -mX (or -qX on AIX) flags
784 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
785 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
786 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
787 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
788 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
789 ])
790
791 AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
792 [
793 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
794 # runs afoul of the more aggressive versions of these optimisations.
795 # Notably, value range propagation now assumes that the this pointer of C++
796 # member functions is non-null.
797 NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
798 FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],
799 [], [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])
800 AC_SUBST([NO_DELETE_NULL_POINTER_CHECKS_CFLAG])
801 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
802 FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_LIFETIME_DSE_CFLAG -Werror],
803 [], [NO_LIFETIME_DSE_CFLAG=""])
804 CFLAGS_JDK="${CFLAGS_JDK} ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
805 AC_SUBST([NO_LIFETIME_DSE_CFLAG])
806 ])
807