Tue, 28 May 2019 18:50:01 +0200
8218020: Fix version number in mesa.md 3rd party legal file
Reviewed-by: clanger
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 #
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$TOOLCHAIN_TYPE" = xxlc; then
30 COMPILER_TARGET_BITS_FLAG="-q"
31 else
32 COMPILER_TARGET_BITS_FLAG="-m"
33 fi
34 AC_SUBST(COMPILER_TARGET_BITS_FLAG)
36 # FIXME: figure out if we should select AR flags depending on OS or toolchain.
37 if test "x$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)
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
63 if test "x$OPENJDK_TARGET_OS" != xwindows; then
64 POST_STRIP_CMD="$STRIP $STRIPFLAGS"
65 fi
66 AC_SUBST(POST_STRIP_CMD)
68 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
69 # FIXME: break out into MCSFLAGS
70 POST_MCS_CMD="$MCS -d -a \"JDK $FULL_VERSION\""
71 fi
72 AC_SUBST(POST_MCS_CMD)
74 if test "x$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)
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
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).\$(COOKED_JDK_UPDATE_VERSION).\$(COOKED_BUILD_NUMBER)\" \
112 -d \"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \
113 -d \"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(JDK_MINOR_VERSION) \$(JDK_UPDATE_META_TAG)\" \
114 -d \"JDK_FVER=\$(JDK_MINOR_VERSION),\$(JDK_MICRO_VERSION),\$(if \$(COOKED_JDK_UPDATE_VERSION),\$(COOKED_JDK_UPDATE_VERSION),0),\$(COOKED_BUILD_NUMBER)\""
115 fi
116 AC_SUBST(RC_FLAGS)
118 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
119 # FIXME: likely bug, should be CCXXFLAGS_JDK? or one for C or CXX.
120 CCXXFLAGS="$CCXXFLAGS -nologo"
121 fi
123 if test "x$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 $SYSROOT_LDFLAGS"
145 fi
146 AC_SUBST(SYSROOT_CFLAGS)
147 AC_SUBST(SYSROOT_LDFLAGS)
148 ])
150 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
151 [
152 ###############################################################################
153 #
154 # How to compile shared libraries.
155 #
157 if test "x$TOOLCHAIN_TYPE" = xgcc; then
158 PICFLAG="-fPIC"
159 C_FLAG_REORDER=''
160 CXX_FLAG_REORDER=''
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$TOOLCHAIN_TYPE" = xmicrosoft; then
196 PICFLAG=""
197 C_FLAG_REORDER=''
198 CXX_FLAG_REORDER=''
199 SHARED_LIBRARY_FLAGS="-LD"
200 SET_EXECUTABLE_ORIGIN=''
201 SET_SHARED_LIBRARY_ORIGIN=''
202 SET_SHARED_LIBRARY_NAME=''
203 SET_SHARED_LIBRARY_MAPFILE=''
204 fi
206 AC_SUBST(C_FLAG_REORDER)
207 AC_SUBST(CXX_FLAG_REORDER)
208 AC_SUBST(SHARED_LIBRARY_FLAGS)
209 AC_SUBST(SET_EXECUTABLE_ORIGIN)
210 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
211 AC_SUBST(SET_SHARED_LIBRARY_NAME)
212 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
214 if test "x$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 ])
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
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="${CXXFLAGS_JDK} -xmemalign=4s"
252 #fi
254 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
255 [
257 ###############################################################################
258 #
259 # Setup the opt flags for different compilers
260 # and different operating systems.
261 #
263 # FIXME: this was indirectly the old default, but just inherited.
264 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
265 # C_FLAG_DEPS="-MMD -MF"
266 # fi
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)
280 # Debug symbols
281 #
282 # By default don't set any specific assembler debug
283 # info flags for toolchains unless we know they work.
284 # See JDK-8207057.
285 ASFLAGS_DEBUG_SYMBOLS=""
286 if test "x$TOOLCHAIN_TYPE" = xgcc; then
287 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
288 CFLAGS_DEBUG_SYMBOLS="-g1"
289 CXXFLAGS_DEBUG_SYMBOLS="-g1"
290 else
291 CFLAGS_DEBUG_SYMBOLS="-g"
292 CXXFLAGS_DEBUG_SYMBOLS="-g"
293 fi
294 ASFLAGS_DEBUG_SYMBOLS="-g"
295 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
296 CFLAGS_DEBUG_SYMBOLS="-g -xs"
297 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
298 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
299 CFLAGS_DEBUG_SYMBOLS="-g"
300 CXXFLAGS_DEBUG_SYMBOLS="-g"
301 fi
302 AC_SUBST(ASFLAGS_DEBUG_SYMBOLS)
303 AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
304 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
306 # Optimization levels
307 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
308 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xalias_level=basic -xbuiltin=%all -xdepend -xrestrict -xlibmil"
310 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
311 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
312 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xregs=no%frameptr"
313 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
314 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
315 C_O_FLAG_NONE="-xregs=no%frameptr"
316 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
317 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
318 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
319 CXX_O_FLAG_NONE="-xregs=no%frameptr"
320 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
321 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
322 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
323 fi
324 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
325 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
326 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
327 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
328 C_O_FLAG_NONE=""
329 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
330 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
331 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
332 CXX_O_FLAG_NONE=""
333 fi
334 else
335 # The remaining toolchains share opt flags between CC and CXX;
336 # setup for C and duplicate afterwards.
337 if test "x$TOOLCHAIN_TYPE" = xgcc; then
338 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
339 # On MacOSX we optimize for size, something
340 # we should do for all platforms?
341 C_O_FLAG_HIGHEST="-Os"
342 C_O_FLAG_HI="-Os"
343 C_O_FLAG_NORM="-Os"
344 C_O_FLAG_NONE=""
345 else
346 C_O_FLAG_HIGHEST="-O3"
347 C_O_FLAG_HI="-O3"
348 C_O_FLAG_NORM="-O2"
349 C_O_FLAG_NONE="-O0"
350 fi
351 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
352 C_O_FLAG_HIGHEST="-O3"
353 C_O_FLAG_HI="-O3 -qstrict"
354 C_O_FLAG_NORM="-O2"
355 C_O_FLAG_NONE=""
356 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
357 C_O_FLAG_HIGHEST="-O2"
358 C_O_FLAG_HI="-O1"
359 C_O_FLAG_NORM="-O1"
360 C_O_FLAG_NONE="-Od"
361 fi
362 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
363 CXX_O_FLAG_HI="$C_O_FLAG_HI"
364 CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
365 CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
366 fi
368 AC_SUBST(C_O_FLAG_HIGHEST)
369 AC_SUBST(C_O_FLAG_HI)
370 AC_SUBST(C_O_FLAG_NORM)
371 AC_SUBST(C_O_FLAG_NONE)
372 AC_SUBST(CXX_O_FLAG_HIGHEST)
373 AC_SUBST(CXX_O_FLAG_HI)
374 AC_SUBST(CXX_O_FLAG_NORM)
375 AC_SUBST(CXX_O_FLAG_NONE)
376 ])
378 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
379 [
380 # Special extras...
381 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
382 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
383 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
384 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
385 fi
386 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
387 LDFLAGS_JDK="${LDFLAGS_JDK} -q64 -brtl -bnolibpath -liconv -bexpall"
388 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
389 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -q64 -qfullpath -qsaveopt"
390 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
391 case $OPENJDK_TARGET_CPU_ARCH in
392 x86 )
393 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS -fstack-protector"
394 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS -fstack-protector"
395 ;;
396 x86_64 )
397 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS -fstack-protector"
398 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS -fstack-protector"
399 ;;
400 esac
401 if test "x$OPENJDK_TARGET_OS" != xmacosx; then
402 LDFLAGS_JDK="$LDFLAGS_JDK -Wl,-z,relro"
403 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS -Wl,-z,relro"
404 fi
405 $2CXXSTD_CXXFLAG="-std=gnu++98"
406 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]$2CXXSTD_CXXFLAG -Werror],
407 [], [$2CXXSTD_CXXFLAG=""])
408 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}"
409 $2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}"
410 AC_SUBST($2CXXSTD_CXXFLAG)
411 fi
413 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
414 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
415 fi
417 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
418 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
419 fi
421 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
422 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
423 fi
425 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
426 [extra flags to be used when compiling jdk c-files])])
428 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
429 [extra flags to be used when compiling jdk c++-files])])
431 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
432 [extra flags to be used when linking jdk])])
434 CFLAGS_JDK="${CFLAGS_JDK} $with_extra_cflags"
435 CXXFLAGS_JDK="${CXXFLAGS_JDK} $with_extra_cxxflags"
436 LDFLAGS_JDK="${LDFLAGS_JDK} $with_extra_ldflags"
438 # Hotspot needs these set in their legacy form
439 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $with_extra_cflags"
440 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $with_extra_cxxflags"
441 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $with_extra_ldflags"
443 AC_SUBST(LEGACY_EXTRA_CFLAGS)
444 AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
445 AC_SUBST(LEGACY_EXTRA_LDFLAGS)
447 ###############################################################################
448 #
449 # Now setup the CFLAGS and LDFLAGS for the JDK build.
450 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
451 #
453 FDLIBM_CFLAGS=""
454 # Setup compiler/platform specific flags to CFLAGS_JDK,
455 # CXXFLAGS_JDK and CCXXFLAGS_JDK (common to C and CXX?)
456 if test "x$TOOLCHAIN_TYPE" = xgcc; then
457 # these options are used for both C and C++ compiles
458 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -Wall -Wno-parentheses -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
459 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
460 case $OPENJDK_TARGET_CPU_ARCH in
461 arm )
462 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
463 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
464 ;;
465 ppc )
466 # on ppc we don't prevent gcc to omit frame pointer nor strict-aliasing
467 ;;
468 x86 )
469 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer -fstack-protector"
470 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing -fstack-protector"
471 ;;
472 * )
473 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -fno-omit-frame-pointer"
474 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
475 ;;
476 esac
477 TOOLCHAIN_CHECK_COMPILER_VERSION(6, FLAGS_SETUP_GCC6_COMPILER_FLAGS)
479 # Check that the compiler supports -ffp-contract=off flag
480 # Set FDLIBM_CFLAGS to -ffp-contract=off if it does.
481 # For GCC < 4.6, on x86, x86_64 and ppc check for
482 # -mno-fused-madd and -fno-strict-aliasing. If they exist,
483 # use them as a substitute for -ffp-contract=off.
484 #
485 # These flags are required for GCC-based builds of
486 # fdlibm with optimization without losing precision.
487 # Notably, -ffp-contract=off needs to be added for GCC >= 4.6,
488 # -mno-fused-madd -fno-strict-aliasing for GCC < 4.6
489 COMPILER_FP_CONTRACT_OFF_FLAG="-ffp-contract=off"
490 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]COMPILER_FP_CONTRACT_OFF_FLAG -Werror],
491 [], [COMPILER_FP_CONTRACT_OFF_FLAG=""])
492 if test "x$COMPILER_FP_CONTRACT_OFF_FLAG" = x; then
493 if test "$OPENJDK_TARGET_CPU_ARCH" = "x86" ||
494 test "$OPENJDK_TARGET_CPU_ARCH" = "x86_64" ||
495 test "$OPENJDK_TARGET_CPU_ARCH" = "ppc"; then
496 M_NO_FUSED_ADD_FLAG="-mno-fused-madd"
497 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]M_NO_FUSED_ADD_FLAG -Werror],
498 [], [M_NO_FUSED_ADD_FLAG=""])
499 NO_STRICT_ALIASING_FLAG="-fno-strict-aliasing"
500 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([[$]NO_STRICT_ALIASING_FLAG -Werror],
501 [], [NO_STRICT_ALIASING_FLAG=""])
502 if test "x$M_NO_FUSED_ADD_FLAG" != "x" && test "x$NO_STRICT_ALIASING_FLAG" != "x"; then
503 FDLIBM_CFLAGS="$M_NO_FUSED_ADD_FLAG $NO_STRICT_ALIASING_FLAG"
504 fi
505 fi
506 else
507 FDLIBM_CFLAGS="$COMPILER_FP_CONTRACT_OFF_FLAG"
508 fi
509 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
510 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
511 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
512 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
513 CFLAGS_JDK="$CFLAGS_JDK -erroff=E_BAD_PRAGMA_PACK_VALUE"
514 fi
516 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
517 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
518 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
519 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
520 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
521 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
522 CCXXFLAGS_JDK="$CCXXFLAGS $CCXXFLAGS_JDK \
523 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
524 -DWIN32_LEAN_AND_MEAN \
525 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
526 -DWIN32 -DIAL"
527 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
528 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_AMD64_ -Damd64"
529 else
530 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_X86_ -Dx86"
531 fi
532 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to
533 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual
534 # studio.
535 if test "x$TOOLCHAIN_VERSION" = "x2010"; then
536 CCXXFLAGS_JDK="$CCXXFLAGS_JDK \
537 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"
538 fi
539 fi
540 AC_SUBST(FDLIBM_CFLAGS)
542 ###############################################################################
544 # Adjust flags according to debug level.
545 case $DEBUG_LEVEL in
546 fastdebug )
547 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
548 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
549 C_O_FLAG_HI="$C_O_FLAG_NORM"
550 C_O_FLAG_NORM="$C_O_FLAG_NORM"
551 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
552 CXX_O_FLAG_NORM="$CXX_O_FLAG_NORM"
553 JAVAC_FLAGS="$JAVAC_FLAGS -g"
554 ;;
555 slowdebug )
556 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS"
557 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS"
558 C_O_FLAG_HI="$C_O_FLAG_NONE"
559 C_O_FLAG_NORM="$C_O_FLAG_NONE"
560 CXX_O_FLAG_HI="$CXX_O_FLAG_NONE"
561 CXX_O_FLAG_NORM="$CXX_O_FLAG_NONE"
562 JAVAC_FLAGS="$JAVAC_FLAGS -g"
563 ;;
564 esac
566 # Setup LP64
567 CCXXFLAGS_JDK="$CCXXFLAGS_JDK $ADD_LP64"
569 # Set some common defines. These works for all compilers, but assume
570 # -D is universally accepted.
572 # Setup endianness
573 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
574 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
575 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
576 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
577 # Note: -Dmacro is the same as #define macro 1
578 # -Dmacro= is the same as #define macro
579 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
580 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
581 else
582 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
583 fi
584 else
585 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they
586 # are defined in the system?
587 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
588 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN="
589 else
590 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_BIG_ENDIAN"
591 fi
592 fi
593 if test "x$OPENJDK_TARGET_CPU" = xppc64le; then
594 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DABI_ELFv2"
595 fi
597 # Setup target OS define. Use OS target name but in upper case.
598 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
599 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
601 # Setup target CPU
602 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
604 # Setup debug/release defines
605 if test "x$DEBUG_LEVEL" = xrelease; then
606 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DNDEBUG"
607 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
608 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DTRIMMED"
609 fi
610 else
611 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DDEBUG"
612 fi
614 # Setup release name
615 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DRELEASE='\"\$(RELEASE)\"'"
618 # Set some additional per-OS defines.
619 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
620 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
621 elif test "x$OPENJDK_TARGET_OS" = xaix; then
622 # FIXME: PPC64 should not be here.
623 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DPPC64"
624 elif test "x$OPENJDK_TARGET_OS" = xbsd; then
625 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
626 fi
628 # Additional macosx handling
629 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
630 if test "x$TOOLCHAIN_TYPE" = xgcc; then
631 # FIXME: This needs to be exported in spec.gmk due to closed legacy code.
632 # FIXME: clean this up, and/or move it elsewhere.
634 # Setting these parameters makes it an error to link to macosx APIs that are
635 # newer than the given OS version and makes the linked binaries compatible
636 # even if built on a newer version of the OS.
637 # The expected format is X.Y.Z
638 MACOSX_VERSION_MIN=10.7.0
639 AC_SUBST(MACOSX_VERSION_MIN)
641 # The macro takes the version with no dots, ex: 1070
642 # Let the flags variables get resolved in make for easier override on make
643 # command line.
644 CCXXFLAGS_JDK="$CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
645 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
646 fi
647 fi
649 # Setup some hard coded includes
650 CCXXFLAGS_JDK="$CCXXFLAGS_JDK \
651 -I${JDK_OUTPUTDIR}/include \
652 -I${JDK_OUTPUTDIR}/include/$OPENJDK_TARGET_OS \
653 -I${JDK_TOPDIR}/src/share/javavm/export \
654 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_EXPORT_DIR/javavm/export \
655 -I${JDK_TOPDIR}/src/share/native/common \
656 -I${JDK_TOPDIR}/src/$OPENJDK_TARGET_OS_API_DIR/native/common"
658 # The shared libraries are compiled using the picflag.
659 CFLAGS_JDKLIB="$CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
660 CXXFLAGS_JDKLIB="$CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA "
662 # Executable flags
663 CFLAGS_JDKEXE="$CCXXFLAGS_JDK $CFLAGS_JDK"
664 CXXFLAGS_JDKEXE="$CCXXFLAGS_JDK $CXXFLAGS_JDK"
666 AC_SUBST(CFLAGS_JDKLIB)
667 AC_SUBST(CFLAGS_JDKEXE)
668 AC_SUBST(CXXFLAGS_JDKLIB)
669 AC_SUBST(CXXFLAGS_JDKEXE)
671 # Setup LDFLAGS et al.
672 #
673 # Now this is odd. The JDK native libraries have to link against libjvm.so
674 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
675 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
676 # is identical for client and server? Yes. Which is picked at runtime (client or server)?
677 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
678 # libraries will link to whatever is in memory. Yuck.
679 #
680 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
681 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
682 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
683 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
684 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
685 fi
686 # TODO: make -debug optional "--disable-full-debug-symbols"
687 LDFLAGS_JDK="$LDFLAGS_JDK -debug"
688 LDFLAGS_JDKLIB="${LDFLAGS_JDK} -dll -libpath:${JDK_OUTPUTDIR}/lib"
689 LDFLAGS_JDKLIB_SUFFIX=""
690 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
691 LDFLAGS_STACK_SIZE=1048576
692 else
693 LDFLAGS_STACK_SIZE=327680
694 fi
695 LDFLAGS_JDKEXE="${LDFLAGS_JDK} /STACK:$LDFLAGS_STACK_SIZE"
696 else
697 if test "x$TOOLCHAIN_TYPE" = xgcc; then
698 # If this is a --hash-style=gnu system, use --hash-style=both, why?
699 # We have previously set HAS_GNU_HASH if this is the case
700 if test -n "$HAS_GNU_HASH"; then
701 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker --hash-style=both "
702 fi
703 if test "x$OPENJDK_TARGET_OS" = xlinux; then
704 # And since we now know that the linker is gnu, then add:
705 # -z defs, to forbid undefined symbols in object files
706 # -z noexecstack, to mark stack regions as non-executable
707 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -z -Xlinker defs -Xlinker -z -Xlinker noexecstack"
708 if test "x$DEBUG_LEVEL" = "xrelease"; then
709 # When building release libraries, tell the linker optimize them.
710 # Should this be supplied to the OSS linker as well?
711 LDFLAGS_JDK="${LDFLAGS_JDK} -Xlinker -O1"
712 fi
713 fi
714 fi
716 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
717 LDFLAGS_JDK="$LDFLAGS_JDK -z defs -xildoff -ztext"
718 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
719 fi
721 LDFLAGS_JDKLIB="${LDFLAGS_JDK} $SHARED_LIBRARY_FLAGS \
722 -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}"
724 # On some platforms (mac) the linker warns about non existing -L dirs.
725 # Add server first if available. Linking aginst client does not always produce the same results.
726 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
727 # Default to server for other variants.
728 if test "x$JVM_VARIANT_SERVER" = xtrue; then
729 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
730 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
731 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/client"
732 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
733 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
734 else
735 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${JDK_OUTPUTDIR}/lib${OPENJDK_TARGET_CPU_LIBDIR}/server"
736 fi
738 LDFLAGS_JDKLIB_SUFFIX="-ljava -ljvm"
739 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
740 LDFLAGS_JDKLIB_SUFFIX="$LDFLAGS_JDKLIB_SUFFIX -lc"
741 fi
743 LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
744 if test "x$OPENJDK_TARGET_OS" = xlinux; then
745 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
746 fi
747 fi
748 AC_SUBST(LDFLAGS_JDKLIB)
749 AC_SUBST(LDFLAGS_JDKEXE)
750 AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)
751 AC_SUBST(LDFLAGS_JDKEXE_SUFFIX)
752 AC_SUBST(LDFLAGS_CXX_JDK)
753 ])
756 # FLAGS_C_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
757 # [RUN-IF-FALSE])
758 # ------------------------------------------------------------
759 # Check that the C compiler supports an argument
760 AC_DEFUN([FLAGS_C_COMPILER_CHECK_ARGUMENTS],
761 [
762 AC_MSG_CHECKING([if the C compiler supports "$1"])
763 supports=yes
765 saved_cflags="$CFLAGS"
766 CFLAGS="$CFLAGS $1"
767 AC_LANG_PUSH([C])
768 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
769 [supports=no])
770 AC_LANG_POP([C])
771 CFLAGS="$saved_cflags"
773 AC_MSG_RESULT([$supports])
774 if test "x$supports" = "xyes" ; then
775 m4_ifval([$2], [$2], [:])
776 else
777 m4_ifval([$3], [$3], [:])
778 fi
779 ])
781 # FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
782 # [RUN-IF-FALSE])
783 # ------------------------------------------------------------
784 # Check that the C++ compiler supports an argument
785 AC_DEFUN([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS],
786 [
787 AC_MSG_CHECKING([if the C++ compiler supports "$1"])
788 supports=yes
790 saved_cxxflags="$CXXFLAGS"
791 CXXFLAGS="$CXXFLAG $1"
792 AC_LANG_PUSH([C++])
793 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
794 [supports=no])
795 AC_LANG_POP([C++])
796 CXXFLAGS="$saved_cxxflags"
798 AC_MSG_RESULT([$supports])
799 if test "x$supports" = "xyes" ; then
800 m4_ifval([$2], [$2], [:])
801 else
802 m4_ifval([$3], [$3], [:])
803 fi
804 ])
806 # FLAGS_COMPILER_CHECK_ARGUMENTS([ARGUMENT], [RUN-IF-TRUE],
807 # [RUN-IF-FALSE])
808 # ------------------------------------------------------------
809 # Check that the C and C++ compilers support an argument
810 AC_DEFUN([FLAGS_COMPILER_CHECK_ARGUMENTS],
811 [
812 FLAGS_C_COMPILER_CHECK_ARGUMENTS([$1],
813 [C_COMP_SUPPORTS="yes"],
814 [C_COMP_SUPPORTS="no"])
815 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS([$1],
816 [CXX_COMP_SUPPORTS="yes"],
817 [CXX_COMP_SUPPORTS="no"])
819 AC_MSG_CHECKING([if both compilers support "$1"])
820 supports=no
821 if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
823 AC_MSG_RESULT([$supports])
824 if test "x$supports" = "xyes" ; then
825 m4_ifval([$2], [$2], [:])
826 else
827 m4_ifval([$3], [$3], [:])
828 fi
829 ])
831 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
832 [
833 # Some Zero and Shark settings.
834 # ZERO_ARCHFLAG tells the compiler which mode to build for
835 case "${OPENJDK_TARGET_CPU}" in
836 s390)
837 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
838 ;;
839 *)
840 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
841 esac
842 FLAGS_COMPILER_CHECK_ARGUMENTS([$ZERO_ARCHFLAG], [], [ZERO_ARCHFLAG=""])
843 AC_SUBST(ZERO_ARCHFLAG)
845 # Check that the compiler supports -mX (or -qX on AIX) flags
846 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
847 FLAGS_COMPILER_CHECK_ARGUMENTS([${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
848 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
849 [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
850 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
851 ])
853 AC_DEFUN_ONCE([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
854 [
855 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
856 # runs afoul of the more aggressive versions of these optimisations.
857 # Notably, value range propagation now assumes that the this pointer of C++
858 # member functions is non-null.
859 NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
860 FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],
861 [], [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])
862 AC_SUBST([NO_DELETE_NULL_POINTER_CHECKS_CFLAG])
863 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
864 FLAGS_COMPILER_CHECK_ARGUMENTS([$NO_LIFETIME_DSE_CFLAG -Werror],
865 [], [NO_LIFETIME_DSE_CFLAG=""])
866 CFLAGS_JDK="${CFLAGS_JDK} ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
867 AC_SUBST([NO_LIFETIME_DSE_CFLAG])
868 ])