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="$CCXXFLAGS -nologo"
121 fi
122 ])
123
124 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
125 [
126 ###############################################################################
127 #
128 # How to compile shared libraries.
129 #
130
131 if test "x$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 \$$$$ORIGIN[$]1'
147 SET_SHARED_LIBRARY_ORIGIN="-Xlinker -z -Xlinker origin $SET_EXECUTABLE_ORIGIN"
148 SET_SHARED_LIBRARY_NAME='-Xlinker -soname=[$]1'
149 SET_SHARED_LIBRARY_MAPFILE='-Xlinker -version-script=[$]1'
150 fi
151 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
152 PICFLAG="-KPIC"
153 C_FLAG_REORDER='-xF'
154 CXX_FLAG_REORDER='-xF'
155 SHARED_LIBRARY_FLAGS="-G"
156 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'
157 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
158 SET_SHARED_LIBRARY_NAME=''
159 SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
160 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
161 PICFLAG="-qpic=large"
162 C_FLAG_REORDER=''
163 CXX_FLAG_REORDER=''
164 SHARED_LIBRARY_FLAGS="-qmkshrobj"
165 SET_EXECUTABLE_ORIGIN=""
166 SET_SHARED_LIBRARY_ORIGIN=''
167 SET_SHARED_LIBRARY_NAME=''
168 SET_SHARED_LIBRARY_MAPFILE=''
169 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
170 PICFLAG=""
171 C_FLAG_REORDER=''
172 CXX_FLAG_REORDER=''
173 SHARED_LIBRARY_FLAGS="-LD"
174 SET_EXECUTABLE_ORIGIN=''
175 SET_SHARED_LIBRARY_ORIGIN=''
176 SET_SHARED_LIBRARY_NAME=''
177 SET_SHARED_LIBRARY_MAPFILE=''
178 fi
179
180 AC_SUBST(C_FLAG_REORDER)
181 AC_SUBST(CXX_FLAG_REORDER)
182 AC_SUBST(SHARED_LIBRARY_FLAGS)
183 AC_SUBST(SET_EXECUTABLE_ORIGIN)
184 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
185 AC_SUBST(SET_SHARED_LIBRARY_NAME)
186 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
187
188 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
189 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
190 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
191 CFLAGS_JDKLIB_EXTRA='-xstrconst'
192 fi
193 # The (cross) compiler is now configured, we can now test capabilities
194 # of the target platform.
195 ])
196
197 # Documentation on common flags used for solstudio in HIGHEST.
198 #
199 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
200 # done with care, there are some assumptions below that need to
201 # be understood about the use of pointers, and IEEE behavior.
202 #
203 # -fns: Use non-standard floating point mode (not IEEE 754)
204 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)
205 # -fsingle: Use single precision floating point with 'float'
206 # -xalias_level=basic: Assume memory references via basic pointer types do not alias
207 # (Source with excessing pointer casting and data access with mixed
208 # pointer types are not recommended)
209 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions
210 # (If you expect perfect errno behavior, do not use this)
211 # -xdepend: Loop data dependency optimizations (need -xO3 or higher)
212 # -xrestrict: Pointer parameters to functions do not overlap
213 # (Similar to -xalias_level=basic usage, but less obvious sometimes.
214 # If you pass in multiple pointers to the same data, do not use this)
215 # -xlibmil: Inline some library routines
216 # (If you expect perfect errno behavior, do not use this)
217 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)
218 # (If you expect perfect errno behavior, do not use this)
219 # Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
220
221 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.
222 # Bug?
223 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then
224 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
225 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
226 #fi
227
228 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
229 [
230
231 ###############################################################################
232 #
233 # Setup the opt flags for different compilers
234 # and different operating systems.
235 #
236
237 # FIXME: this was indirectly the old default, but just inherited.
238 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
239 # C_FLAG_DEPS="-MMD -MF"
240 # fi
241
242 # Generate make dependency files
243 if test "x$TOOLCHAIN_TYPE" = xgcc; then
244 C_FLAG_DEPS="-MMD -MF"
245 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
246 C_FLAG_DEPS="-xMMD -xMF"
247 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
248 C_FLAG_DEPS="-qmakedep=gcc -MF"
249 fi
250 CXX_FLAG_DEPS="$C_FLAG_DEPS"
251 AC_SUBST(C_FLAG_DEPS)
252 AC_SUBST(CXX_FLAG_DEPS)
253
254 # Debug symbols
255 if test "x$TOOLCHAIN_TYPE" = xgcc; then
256 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
257 CFLAGS_DEBUG_SYMBOLS="-g1"
258 CXXFLAGS_DEBUG_SYMBOLS="-g1"
259 else
260 CFLAGS_DEBUG_SYMBOLS="-g"
261 CXXFLAGS_DEBUG_SYMBOLS="-g"
262 fi
263 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
264 CFLAGS_DEBUG_SYMBOLS="-g -xs"
265 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
266 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
267 CFLAGS_DEBUG_SYMBOLS="-g"
268 CXXFLAGS_DEBUG_SYMBOLS="-g"
269 fi
270 AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
271 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
272
273 # Optimization levels
274 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
275 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xalias_level=basic -xbuiltin=%all -xdepend -xrestrict -xlibmil"
276
277 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
278 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
279 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xregs=no%frameptr"
280 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
281 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
282 C_O_FLAG_NONE="-xregs=no%frameptr"
283 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
284 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
285 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
286 CXX_O_FLAG_NONE="-xregs=no%frameptr"
287 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
288 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
289 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
290 fi
291 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
292 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
293 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
294 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
295 C_O_FLAG_NONE=""
296 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
297 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
298 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
299 CXX_O_FLAG_NONE=""
300 fi
301 else
302 # The remaining toolchains share opt flags between CC and CXX;
303 # setup for C and duplicate afterwards.
304 if test "x$TOOLCHAIN_TYPE" = xgcc; then
305 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
306 # On MacOSX we optimize for size, something
307 # we should do for all platforms?
308 C_O_FLAG_HIGHEST="-Os"
309 C_O_FLAG_HI="-Os"
310 C_O_FLAG_NORM="-Os"
311 C_O_FLAG_NONE=""
312 else
313 C_O_FLAG_HIGHEST="-O3"
314 C_O_FLAG_HI="-O3"
315 C_O_FLAG_NORM="-O2"
316 C_O_FLAG_NONE="-O0"
317 fi
318 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
319 C_O_FLAG_HIGHEST="-O3"
320 C_O_FLAG_HI="-O3 -qstrict"
321 C_O_FLAG_NORM="-O2"
322 C_O_FLAG_NONE=""
323 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
324 C_O_FLAG_HIGHEST="-O2"
325 C_O_FLAG_HI="-O1"
326 C_O_FLAG_NORM="-O1"
327 C_O_FLAG_NONE="-Od"
328 fi
329 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
330 CXX_O_FLAG_HI="$C_O_FLAG_HI"
331 CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
332 CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
333 fi
334
335 AC_SUBST(C_O_FLAG_HIGHEST)
336 AC_SUBST(C_O_FLAG_HI)
337 AC_SUBST(C_O_FLAG_NORM)
338 AC_SUBST(C_O_FLAG_NONE)
339 AC_SUBST(CXX_O_FLAG_HIGHEST)
340 AC_SUBST(CXX_O_FLAG_HI)
341 AC_SUBST(CXX_O_FLAG_NORM)
342 AC_SUBST(CXX_O_FLAG_NONE)
343 ])
344
345 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
346 [
347 # Special extras...
348 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
349 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
350 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
351 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
352 fi
353 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
354 LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall"
355 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
356 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
357 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
358 $2CXXSTD_CXXFLAG="-std=gnu++98"
359 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]$2CXXSTD_CXXFLAG -Werror],
360 [], [$2CXXSTD_CXXFLAG=""])
361 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}"
362 $2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}"
363 AC_SUBST($2CXXSTD_CXXFLAG)
364 fi
365
366 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
367 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
368 fi
369
370 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
371 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
372 fi
373
374 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
375 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
376 fi
377
378 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
379 [extra flags to be used when compiling jdk c-files])])
380
381 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
382 [extra flags to be used when compiling jdk c++-files])])
383
384 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
385 [extra flags to be used when linking jdk])])
386
387 CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
388 CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
389 LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"
390
391 # Hotspot needs these set in their legacy form
392 LEGACY_EXTRA_CFLAGS=$with_extra_cflags
393 LEGACY_EXTRA_CXXFLAGS=$with_extra_cxxflags
394 LEGACY_EXTRA_LDFLAGS=$with_extra_ldflags
395
396 AC_SUBST(LEGACY_EXTRA_CFLAGS)
397 AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
398 AC_SUBST(LEGACY_EXTRA_LDFLAGS)
399
400 ###############################################################################
401 #
402 # Now setup the CFLAGS and LDFLAGS for the JDK build.
403 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
404 #
405
406 # Setup compiler/platform specific flags to CFLAGS_JDK,
407 # CXXFLAGS_JDK and CCXXFLAGS_JDK (common to C and CXX?)
408 if test "x$TOOLCHAIN_TYPE" = xgcc; then
409 # these options are used for both C and C++ compiles
410 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Wall -Wno-parentheses -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
411 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
412 case $OPENJDK_TARGET_CPU_ARCH in
413 arm )
414 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
415 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
416 ;;
417 ppc )
418 # on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing
419 ;;
420 * )
421 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer"
422 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
423 ;;
424 esac
425 TOOLCHAIN_CHECK_COMPILER_VERSION(6, FLAGS_SETUP_GCC6_COMPILER_FLAGS)
426 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
427 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
428 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
429 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
430 CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"
431 fi
432
433 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
434 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
435 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
436 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
437 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
438 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
439 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
440 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB -DWIN32_LEAN_AND_MEAN \
441 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
442 -DWIN32 -DIAL"
443 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
444 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64"
445 else
446 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86"
447 fi
448 fi
449
450 ###############################################################################
451
452 # Adjust flags according to debug level.
453 case $DEBUG_LEVEL in
454 fastdebug )
455 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
456 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
457 C_O_FLAG_HI="$C_O_FLAG_NORM"
458 C_O_FLAG_NORM="$C_O_FLAG_NORM"
459 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
460 CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM"
461 JAVAC_FLAGS="$JAVAC_FLAGS -g"
462 ;;
463 slowdebug )
464 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
465 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
466 C_O_FLAG_HI="$C_O_FLAG_NONE"
467 C_O_FLAG_NORM="$C_O_FLAG_NONE"
468 CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"
469 CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"
470 JAVAC_FLAGS="$JAVAC_FLAGS -g"
471 ;;
472 esac
473
474 # Setup LP64
475 CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64"
476
477 # Set some common defines. These works for all compilers, but assume
478 # -D is universally accepted.
479
480 # Setup endianness
481 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
482 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
483 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
484 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
485 # Note: -Dmacro is the same as #define macro 1
486 # -Dmacro= is the same as #define macro
487 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
488 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
489 else
490 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
491 fi
492 else
493 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN"
494 fi
495
496 # Setup target OS define. Use OS target name but in upper case.
497 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
498 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
499
500 # Setup target CPU
501 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
502
503 # Setup debug/release defines
504 if test "x$DEBUG_LEVEL" = xrelease; then
505 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG"
506 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
507 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED"
508 fi
509 else
510 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG"
511 fi
512
513 # Setup release name
514 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'"
515
516
517 # Set some additional per-OS defines.
518 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
519 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
520 elif test "x$OPENJDK_TARGET_OS" = xaix; then
521 # FIXME: PPC64 should not be here.
522 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DPPC64"
523 elif test "x$OPENJDK_TARGET_OS" = xbsd; then
524 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
525 fi
526
527 # Additional macosx handling
528 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
529 if test "x$TOOLCHAIN_TYPE" = xgcc; then
530 # FIXME: This needs to be exported in spec.gmk due to closed legacy code.
531 # FIXME: clean this up, and/or move it elsewhere.
532
533 # Setting these parameters makes it an error to link to macosx APIs that are
534 # newer than the given OS version and makes the linked binaries compatible
535 # even if built on a newer version of the OS.
536 # The expected format is X.Y.Z
537 MACOSX_VERSION_MIN=10.7.0
538 AC_SUBST(MACOSX_VERSION_MIN)
539
540 # The macro takes the version with no dots, ex: 1070
541 # Let the flags variables get resolved in make for easier override on make
542 # command line.
543 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
544 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
545 fi
546 fi
547
548 # Setup some hard coded includes
549 CCXXFLAGS_JDK="$CCXXFLAGS_JDK \
550 -I${JDK_OUTPUTDIR}/include \
551 -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \
552 -I${JDK_TOPDIR}/src/share/javavm/export \
553 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \
554 -I${JDK_TOPDIR}/src/share/native/common \
555 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common"
556
557 # The shared libraries are compiled using the picflag.
558 CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
559 CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "
560
561 # Executable flags
562 CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK"
563 CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK"
564
565 AC_SUBST(CFLAGS_JDKLIB)
566 AC_SUBST(CFLAGS_JDKEXE)
567 AC_SUBST(CXXFLAGS_JDKLIB)
568 AC_SUBST(CXXFLAGS_JDKEXE)
569
570 # Setup LDFLAGS et al.
571 #
572 # Now this is odd. The JDK native libraries have to link against libjvm.so
573 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
574 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
575 # is identical for client and server? Yes. Which is picked at runtime (client or server)?
576 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
577 # libraries will link to whatever is in memory. Yuck.
578 #
579 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
580 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
581 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
582 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
583 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
584 fi
585 # TODO: make -debug optional "--disable-full-debug-symbols"
586 LDFLAGS_JDK="$LDFLAGS_JDK -debug"
587 LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib"
588 LDFLAGS_JDKLIB_SUFFIX=""
589 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
590 LDFLAGS_STACK_SIZE=1048576
591 else
592 LDFLAGS_STACK_SIZE=327680
593 fi
594 LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE"
595 else
596 if test "x$TOOLCHAIN_TYPE" = xgcc; then
597 # If this is a --hash-style=gnu system, use --hash-style=both, why?
598 # We have previously set HAS_GNU_HASH if this is the case
599 if test -n "$HAS_GNU_HASH"; then
600 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both "
601 fi
602 if test "x$OPENJDK_TARGET_OS" = xlinux; then
603 # And since we now know that the linker is gnu, then add -z defs, to forbid
604 # undefined symbols in object files.
605 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs"
606 if test "x$DEBUG_LEVEL" = "xrelease"; then
607 # When building release libraries, tell the linker optimize them.
608 # Should this be supplied to the OSS linker as well?
609 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
610 fi
611 fi
612 fi
613
614 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
615 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
616 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
617 fi
618
619 LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \
620 -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}"
621
622 # On some platforms (mac) the linker warns about non existing -L dirs.
623 # Add server first if available. Linking aginst client does not always produce the same results.
624 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
625 # Default to server for other variants.
626 if test "x$JVM_VARIANT_SERVER" = xtrue; then
627 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
628 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
629 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client"
630 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
631 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
632 else
633 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
634 fi
635
636 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
637 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
638 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
639 fi
640
641 LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
642 if test "x$OPENJDK_TARGET_OS" = xlinux; then
643 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
644 fi
645 fi
646 AC_SUBST(LDFLAGS_JDKLIB)
647 AC_SUBST(LDFLAGS_JDKEXE)
648 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
649 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
650 AC_SUBST(LDFLAGS_CXX_JDK)
651 ])
652
653
654 # FLAGS_C_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
655 # [RUN-IF-FALSE])
656 # ------------------------------------------------------------
657 # Check that the C compiler supports an argument
658 AC_DEFUN([FLAGS_C_COMPILER_CHECK_ARGUMENTS],
659 [
660 AC_MSG_CHECKING([if the C compiler supports "$1"])
661 supports=yes
662
663 saved_cflags="$CFLAGS"
664 CFLAGS="$CFLAGS $1"
665 AC_LANG_PUSH([C])
666 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
667 [supports=no])
668 AC_LANG_POP([C])
669 CFLAGS="$saved_cflags"
670
671 AC_MSG_RESULT([$supports])
672 if test "x$supports" = "xyes" ; then
673 m4_ifval([$2], [$2], [:])
674 else
675 m4_ifval([$3], [$3], [:])
676 fi
677 ])
678
679 # FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
680 # [RUN-IF-FALSE])
681 # ------------------------------------------------------------
682 # Check that the C++ compiler supports an argument
683 AC_DEFUN([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS],
684 [
685 AC_MSG_CHECKING([if the C++ compiler supports "$1"])
686 supports=yes
687
688 saved_cxxflags="$CXXFLAGS"
689 CXXFLAGS="$CXXFLAG $1"
690 AC_LANG_PUSH([C++])
691 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
692 [supports=no])
693 AC_LANG_POP([C++])
694 CXXFLAGS="$saved_cxxflags"
695
696 AC_MSG_RESULT([$supports])
697 if test "x$supports" = "xyes" ; then
698 m4_ifval([$2], [$2], [:])
699 else
700 m4_ifval([$3], [$3], [:])
701 fi
702 ])
703
704 # FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
705 # [RUN-IF-FALSE])
706 # ------------------------------------------------------------
707 # Check that the C and C++ compilers support an argument
708 AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS],
709 [
710 FLAGS_C_COMPILER_CHECK_ARGUMENTS([$1],
711 [C_COMP_SUPPORTS="yes"],
712 [C_COMP_SUPPORTS="no"])
713 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([$1],
714 [CXX_COMP_SUPPORTS="yes"],
715 [CXX_COMP_SUPPORTS="no"])
716
717 AC_MSG_CHECKING([if both compilers support "$1"])
718 supports=no
719 if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
720
721 AC_MSG_RESULT([$supports])
722 if test "x$supports" = "xyes" ; then
723 m4_ifval([$2], [$2], [:])
724 else
725 m4_ifval([$3], [$3], [:])
726 fi
727 ])
728
729 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
730 [
731 # Some Zero and Shark settings.
732 # ZERO_ARCHFLAG tells the compiler which mode to build for
733 case "${OPENJDK_TARGET_CPU}" in
734 s390)
735 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
736 ;;
737 *)
738 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
739 esac
740 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])
741 AC_SUBST(ZERO_ARCHFLAG)
742
743 # Check that the compiler supports -mX (or -qX on AIX) flags
744 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
745 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
746 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
747 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
748 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
749 ])
750
751 AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
752 [
753 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
754 # runs afoul of the more aggressive versions of these optimisations.
755 # Notably, value range propagation now assumes that the this pointer of C++
756 # member functions is non-null.
757 NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
758 FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],
759 [], [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])
760 AC_SUBST([NO_DELETE_NULL_POINTER_CHECKS_CFLAG])
761 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
762 FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_LIFETIME_DSE_CFLAG -Werror],
763 [], [NO_LIFETIME_DSE_CFLAG=""])
764 CFLAGS_JDK="${CFLAGS_JDK} ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
765 AC_SUBST([NO_LIFETIME_DSE_CFLAG])
766 ])
767