1 #
2 # Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 #
5 # This code is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License version 2 only, as
7 # published by the Free Software Foundation. Oracle designates this
8 # particular file as subject to the "Classpath" exception as provided
9 # by Oracle in the LICENSE file that accompanied this code.
10 #
11 # This code is distributed in the hope that it will be useful, but WITHOUT
12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 # version 2 for more details (a copy is included in the LICENSE file that
15 # accompanied this code).
16 #
17 # You should have received a copy of the GNU General Public License version
18 # 2 along with this work; if not, write to the Free Software Foundation,
19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 #
21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 # or visit www.oracle.com if you need additional information or have any
23 # questions.
24 #
25
26 # Reset the global CFLAGS/LDFLAGS variables and initialize them with the
27 # corresponding configure arguments instead
28 AC_DEFUN_ONCE([FLAGS_SETUP_USER_SUPPLIED_FLAGS],
29 [
30 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
31 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
32 fi
33
34 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
35 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
36 fi
37
38 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
39 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
40 fi
41
42 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
43 [extra flags to be used when compiling jdk c-files])])
44
45 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
46 [extra flags to be used when compiling jdk c++-files])])
47
48 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
49 [extra flags to be used when linking jdk])])
50
51 EXTRA_CFLAGS="$with_extra_cflags"
52 EXTRA_CXXFLAGS="$with_extra_cxxflags"
53 EXTRA_LDFLAGS="$with_extra_ldflags"
54
55 # Hotspot needs these set in their legacy form
56 LEGACY_EXTRA_CFLAGS="$LEGACY_EXTRA_CFLAGS $EXTRA_CFLAGS"
57 LEGACY_EXTRA_CXXFLAGS="$LEGACY_EXTRA_CXXFLAGS $EXTRA_CXXFLAGS"
58 LEGACY_EXTRA_LDFLAGS="$LEGACY_EXTRA_LDFLAGS $EXTRA_LDFLAGS"
59
60 AC_SUBST(LEGACY_EXTRA_CFLAGS)
61 AC_SUBST(LEGACY_EXTRA_CXXFLAGS)
62 AC_SUBST(LEGACY_EXTRA_LDFLAGS)
63
64 # The global CFLAGS and LDLAGS variables are used by configure tests and
65 # should include the extra parameters
66 CFLAGS="$EXTRA_CFLAGS"
67 CXXFLAGS="$EXTRA_CXXFLAGS"
68 LDFLAGS="$EXTRA_LDFLAGS"
69 CPPFLAGS=""
70 ])
71
72 # Setup the sysroot flags and add them to global CFLAGS and LDFLAGS so
73 # that configure can use them while detecting compilers.
74 # TOOLCHAIN_TYPE is available here.
75 # Param 1 - Optional prefix to all variables. (e.g BUILD_)
76 AC_DEFUN([FLAGS_SETUP_SYSROOT_FLAGS],
77 [
78 if test "x[$]$1SYSROOT" != "x"; then
79 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
80 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
81 # Solaris Studio does not have a concept of sysroot. Instead we must
82 # make sure the default include and lib dirs are appended to each
83 # compile and link command line.
84 $1SYSROOT_CFLAGS="-I[$]$1SYSROOT/usr/include"
85 $1SYSROOT_LDFLAGS="-L[$]$1SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \
86 -L[$]$1SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \
87 -L[$]$1SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR"
88 fi
89 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
90 $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT"
91 $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT"
92 elif test "x$TOOLCHAIN_TYPE" = xclang; then
93 $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT"
94 $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT"
95 fi
96 # Propagate the sysroot args to hotspot
97 $1LEGACY_EXTRA_CFLAGS="[$]$1LEGACY_EXTRA_CFLAGS [$]$1SYSROOT_CFLAGS"
98 $1LEGACY_EXTRA_CXXFLAGS="[$]$1LEGACY_EXTRA_CXXFLAGS [$]$1SYSROOT_CFLAGS"
99 $1LEGACY_EXTRA_LDFLAGS="[$]$1LEGACY_EXTRA_LDFLAGS [$]$1SYSROOT_LDFLAGS"
100 # The global CFLAGS and LDFLAGS variables need these for configure to function
101 $1CFLAGS="[$]$1CFLAGS [$]$1SYSROOT_CFLAGS"
102 $1CPPFLAGS="[$]$1CPPFLAGS [$]$1SYSROOT_CFLAGS"
103 $1CXXFLAGS="[$]$1CXXFLAGS [$]$1SYSROOT_CFLAGS"
104 $1LDFLAGS="[$]$1LDFLAGS [$]$1SYSROOT_LDFLAGS"
105 fi
106
107 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
108 # We also need -iframework<path>/System/Library/Frameworks
109 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks"
110 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks"
111 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework
112 # set this here so it doesn't have to be peppered throughout the forest
113 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
114 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
115 fi
116
117 AC_SUBST($1SYSROOT_CFLAGS)
118 AC_SUBST($1SYSROOT_LDFLAGS)
119 ])
120
121 AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS],
122 [
123 # COMPILER_TARGET_BITS_FLAG : option for selecting 32- or 64-bit output
124 # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler
125 if test "x$TOOLCHAIN_TYPE" = xxlc; then
126 COMPILER_TARGET_BITS_FLAG="-q"
127 COMPILER_COMMAND_FILE_FLAG="-f"
128 else
129 COMPILER_TARGET_BITS_FLAG="-m"
130 COMPILER_COMMAND_FILE_FLAG="@"
131
132 # The solstudio linker does not support @-files.
133 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
134 COMPILER_COMMAND_FILE_FLAG=
135 fi
136
137 # Check if @file is supported by gcc
138 if test "x$TOOLCHAIN_TYPE" = xgcc; then
139 AC_MSG_CHECKING([if @file is supported by gcc])
140 # Extra emtpy "" to prevent ECHO from interpreting '--version' as argument
141 $ECHO "" "--version" > command.file
142 if $CXX @command.file 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then
143 AC_MSG_RESULT(yes)
144 COMPILER_COMMAND_FILE_FLAG="@"
145 else
146 AC_MSG_RESULT(no)
147 COMPILER_COMMAND_FILE_FLAG=
148 fi
149 rm -rf command.file
150 fi
151 fi
152 AC_SUBST(COMPILER_TARGET_BITS_FLAG)
153 AC_SUBST(COMPILER_COMMAND_FILE_FLAG)
154
155 # FIXME: figure out if we should select AR flags depending on OS or toolchain.
156 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
157 ARFLAGS="-r"
158 elif test "x$OPENJDK_TARGET_OS" = xaix; then
159 ARFLAGS="-X64"
160 elif test "x$OPENJDK_TARGET_OS" = xwindows; then
161 # lib.exe is used as AR to create static libraries.
162 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"
163 else
164 ARFLAGS=""
165 fi
166 AC_SUBST(ARFLAGS)
167
168 ## Setup strip.
169 # FIXME: should this really be per platform, or should it be per toolchain type?
170 # strip is not provided by clang or solstudio; so guessing platform makes most sense.
171 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD.
172 if test "x$OPENJDK_TARGET_OS" = xlinux; then
173 STRIPFLAGS="-g"
174 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then
175 STRIPFLAGS="-x"
176 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then
177 STRIPFLAGS="-S"
178 elif test "x$OPENJDK_TARGET_OS" = xaix; then
179 STRIPFLAGS="-X32_64"
180 fi
181
182 AC_SUBST(STRIPFLAGS)
183
184 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
185 CC_OUT_OPTION=-Fo
186 EXE_OUT_OPTION=-out:
187 LD_OUT_OPTION=-out:
188 AR_OUT_OPTION=-out:
189 else
190 # The option used to specify the target .o,.a or .so file.
191 # When compiling, how to specify the to be created object file.
192 CC_OUT_OPTION='-o$(SPACE)'
193 # When linking, how to specify the to be created executable.
194 EXE_OUT_OPTION='-o$(SPACE)'
195 # When linking, how to specify the to be created dynamically linkable library.
196 LD_OUT_OPTION='-o$(SPACE)'
197 # When archiving, how to specify the to be create static archive for object files.
198 AR_OUT_OPTION='rcs$(SPACE)'
199 fi
200 AC_SUBST(CC_OUT_OPTION)
201 AC_SUBST(EXE_OUT_OPTION)
202 AC_SUBST(LD_OUT_OPTION)
203 AC_SUBST(AR_OUT_OPTION)
204
205 # On Windows, we need to set RC flags.
206 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
207 RC_FLAGS="-nologo -l0x409"
208 if test "x$VARIANT" = xOPT; then
209 RC_FLAGS="$RC_FLAGS -DNDEBUG"
210 fi
211
212 # The version variables used to create RC_FLAGS may be overridden
213 # in a custom configure script, or possibly the command line.
214 # Let those variables be expanded at make time in spec.gmk.
215 # The \$ are escaped to the shell, and the $(...) variables
216 # are evaluated by make.
217 RC_FLAGS="$RC_FLAGS \
218 -D\"JDK_VERSION_STRING=\$(VERSION_STRING)\" \
219 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \
220 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \
221 -D\"JDK_VER=\$(VERSION_NUMBER)\" \
222 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \
223 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(VERSION_MAJOR)\" \
224 -D\"JDK_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\""
225 fi
226 AC_SUBST(RC_FLAGS)
227
228 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
229 # silence copyright notice and other headers.
230 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo"
231 fi
232 ])
233
234 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
235 [
236 ###############################################################################
237 #
238 # How to compile shared libraries.
239 #
240
241 if test "x$TOOLCHAIN_TYPE" = xgcc; then
242 PICFLAG="-fPIC"
243 C_FLAG_REORDER=''
244 CXX_FLAG_REORDER=''
245
246 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
247 # Linking is different on MacOSX
248 if test "x$STATIC_BUILD" = xtrue; then
249 SHARED_LIBRARY_FLAGS ='-undefined dynamic_lookup'
250 else
251 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
252 fi
253 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.'
254 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
255 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1'
256 SET_SHARED_LIBRARY_MAPFILE=''
257 else
258 # Default works for linux, might work on other platforms as well.
259 SHARED_LIBRARY_FLAGS='-shared'
260 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1'
261 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
262 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
263 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
264 fi
265 elif test "x$TOOLCHAIN_TYPE" = xclang; then
266 C_FLAG_REORDER=''
267 CXX_FLAG_REORDER=''
268
269 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
270 # Linking is different on MacOSX
271 PICFLAG=''
272 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
273 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.'
274 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
275 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1'
276 SET_SHARED_LIBRARY_MAPFILE=''
277 else
278 # Default works for linux, might work on other platforms as well.
279 PICFLAG='-fPIC'
280 SHARED_LIBRARY_FLAGS='-shared'
281 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1'
282 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
283 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
284 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
285 fi
286 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
287 PICFLAG="-KPIC"
288 C_FLAG_REORDER='-xF'
289 CXX_FLAG_REORDER='-xF'
290 SHARED_LIBRARY_FLAGS="-G"
291 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'
292 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
293 SET_SHARED_LIBRARY_NAME='-h [$]1'
294 SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
295 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
296 PICFLAG="-qpic=large"
297 C_FLAG_REORDER=''
298 CXX_FLAG_REORDER=''
299 SHARED_LIBRARY_FLAGS="-qmkshrobj"
300 SET_EXECUTABLE_ORIGIN=""
301 SET_SHARED_LIBRARY_ORIGIN=''
302 SET_SHARED_LIBRARY_NAME=''
303 SET_SHARED_LIBRARY_MAPFILE=''
304 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
305 PICFLAG=""
306 C_FLAG_REORDER=''
307 CXX_FLAG_REORDER=''
308 SHARED_LIBRARY_FLAGS="-dll"
309 SET_EXECUTABLE_ORIGIN=''
310 SET_SHARED_LIBRARY_ORIGIN=''
311 SET_SHARED_LIBRARY_NAME=''
312 SET_SHARED_LIBRARY_MAPFILE=''
313 fi
314
315 AC_SUBST(C_FLAG_REORDER)
316 AC_SUBST(CXX_FLAG_REORDER)
317 AC_SUBST(SET_EXECUTABLE_ORIGIN)
318 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
319 AC_SUBST(SET_SHARED_LIBRARY_NAME)
320 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
321 AC_SUBST(SHARED_LIBRARY_FLAGS)
322
323 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
324 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
325 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
326 CFLAGS_JDKLIB_EXTRA='-xstrconst'
327 fi
328 # The (cross) compiler is now configured, we can now test capabilities
329 # of the target platform.
330 ])
331
332 # Documentation on common flags used for solstudio in HIGHEST.
333 #
334 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
335 # done with care, there are some assumptions below that need to
336 # be understood about the use of pointers, and IEEE behavior.
337 #
338 # -fns: Use non-standard floating point mode (not IEEE 754)
339 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)
340 # -fsingle: Use single precision floating point with 'float'
341 # -xalias_level=basic: Assume memory references via basic pointer types do not alias
342 # (Source with excessing pointer casting and data access with mixed
343 # pointer types are not recommended)
344 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions
345 # (If you expect perfect errno behavior, do not use this)
346 # -xdepend: Loop data dependency optimizations (need -xO3 or higher)
347 # -xrestrict: Pointer parameters to functions do not overlap
348 # (Similar to -xalias_level=basic usage, but less obvious sometimes.
349 # If you pass in multiple pointers to the same data, do not use this)
350 # -xlibmil: Inline some library routines
351 # (If you expect perfect errno behavior, do not use this)
352 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)
353 # (If you expect perfect errno behavior, do not use this)
354 # Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
355
356 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.
357 # Bug?
358 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then
359 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
360 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
361 #fi
362
363 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
364 [
365
366 ###############################################################################
367 #
368 # Setup the opt flags for different compilers
369 # and different operating systems.
370 #
371
372 # FIXME: this was indirectly the old default, but just inherited.
373 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
374 # C_FLAG_DEPS="-MMD -MF"
375 # fi
376
377 # Generate make dependency files
378 if test "x$TOOLCHAIN_TYPE" = xgcc; then
379 C_FLAG_DEPS="-MMD -MF"
380 elif test "x$TOOLCHAIN_TYPE" = xclang; then
381 C_FLAG_DEPS="-MMD -MF"
382 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
383 C_FLAG_DEPS="-xMMD -xMF"
384 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
385 C_FLAG_DEPS="-qmakedep=gcc -MF"
386 fi
387 CXX_FLAG_DEPS="$C_FLAG_DEPS"
388 AC_SUBST(C_FLAG_DEPS)
389 AC_SUBST(CXX_FLAG_DEPS)
390
391 # Debug symbols
392 if test "x$TOOLCHAIN_TYPE" = xgcc; then
393 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
394 # reduce from default "-g2" option to save space
395 CFLAGS_DEBUG_SYMBOLS="-g1"
396 CXXFLAGS_DEBUG_SYMBOLS="-g1"
397 else
398 CFLAGS_DEBUG_SYMBOLS="-g"
399 CXXFLAGS_DEBUG_SYMBOLS="-g"
400 fi
401 elif test "x$TOOLCHAIN_TYPE" = xclang; then
402 CFLAGS_DEBUG_SYMBOLS="-g"
403 CXXFLAGS_DEBUG_SYMBOLS="-g"
404 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
405 CFLAGS_DEBUG_SYMBOLS="-g -xs"
406 # -g0 enables debug symbols without disabling inlining.
407 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
408 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
409 CFLAGS_DEBUG_SYMBOLS="-g"
410 CXXFLAGS_DEBUG_SYMBOLS="-g"
411 fi
412 AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
413 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
414
415 # bounds, memory and behavior checking options
416 if test "x$TOOLCHAIN_TYPE" = xgcc; then
417 case $DEBUG_LEVEL in
418 release )
419 # no adjustment
420 ;;
421 fastdebug )
422 # no adjustment
423 ;;
424 slowdebug )
425 # Add runtime stack smashing and undefined behavior checks.
426 # Not all versions of gcc support -fstack-protector
427 STACK_PROTECTOR_CFLAG="-fstack-protector-all"
428 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG], IF_FALSE: [STACK_PROTECTOR_CFLAG=""])
429
430 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
431 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
432 ;;
433 esac
434 fi
435
436 # Optimization levels
437 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
438 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil"
439
440 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
441 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
442 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr"
443 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
444 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
445 C_O_FLAG_DEBUG="-xregs=no%frameptr"
446 C_O_FLAG_NONE="-xregs=no%frameptr"
447 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
448 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
449 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
450 CXX_O_FLAG_DEBUG="-xregs=no%frameptr"
451 CXX_O_FLAG_NONE="-xregs=no%frameptr"
452 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
453 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
454 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
455 fi
456 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
457 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra"
458 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
459 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
460 C_O_FLAG_DEBUG=""
461 C_O_FLAG_NONE=""
462 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
463 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
464 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
465 C_O_FLAG_DEBUG=""
466 CXX_O_FLAG_NONE=""
467 fi
468 else
469 # The remaining toolchains share opt flags between CC and CXX;
470 # setup for C and duplicate afterwards.
471 if test "x$TOOLCHAIN_TYPE" = xgcc; then
472 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
473 # On MacOSX we optimize for size, something
474 # we should do for all platforms?
475 C_O_FLAG_HIGHEST="-Os"
476 C_O_FLAG_HI="-Os"
477 C_O_FLAG_NORM="-Os"
478 else
479 C_O_FLAG_HIGHEST="-O3"
480 C_O_FLAG_HI="-O3"
481 C_O_FLAG_NORM="-O2"
482 fi
483 C_O_FLAG_DEBUG="-O0"
484 C_O_FLAG_NONE="-O0"
485 elif test "x$TOOLCHAIN_TYPE" = xclang; then
486 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
487 # On MacOSX we optimize for size, something
488 # we should do for all platforms?
489 C_O_FLAG_HIGHEST="-Os"
490 C_O_FLAG_HI="-Os"
491 C_O_FLAG_NORM="-Os"
492 else
493 C_O_FLAG_HIGHEST="-O3"
494 C_O_FLAG_HI="-O3"
495 C_O_FLAG_NORM="-O2"
496 fi
497 C_O_FLAG_DEBUG="-O0"
498 C_O_FLAG_NONE="-O0"
499 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
500 C_O_FLAG_HIGHEST="-O3"
501 C_O_FLAG_HI="-O3 -qstrict"
502 C_O_FLAG_NORM="-O2"
503 C_O_FLAG_DEBUG="-qnoopt"
504 C_O_FLAG_NONE="-qnoopt"
505 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
506 C_O_FLAG_HIGHEST="-O2"
507 C_O_FLAG_HI="-O1"
508 C_O_FLAG_NORM="-O1"
509 C_O_FLAG_DEBUG="-Od"
510 C_O_FLAG_NONE="-Od"
511 fi
512 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
513 CXX_O_FLAG_HI="$C_O_FLAG_HI"
514 CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
515 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG"
516 CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
517 fi
518
519 # Adjust optimization flags according to debug level.
520 case $DEBUG_LEVEL in
521 release )
522 # no adjustment
523 ;;
524 fastdebug )
525 # Not quite so much optimization
526 C_O_FLAG_HI="$C_O_FLAG_NORM"
527 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
528 ;;
529 slowdebug )
530 # Disable optimization
531 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG"
532 C_O_FLAG_HI="$C_O_FLAG_DEBUG"
533 C_O_FLAG_NORM="$C_O_FLAG_DEBUG"
534 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG"
535 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG"
536 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG"
537 ;;
538 esac
539
540 AC_SUBST(C_O_FLAG_HIGHEST)
541 AC_SUBST(C_O_FLAG_HI)
542 AC_SUBST(C_O_FLAG_NORM)
543 AC_SUBST(C_O_FLAG_DEBUG)
544 AC_SUBST(C_O_FLAG_NONE)
545 AC_SUBST(CXX_O_FLAG_HIGHEST)
546 AC_SUBST(CXX_O_FLAG_HI)
547 AC_SUBST(CXX_O_FLAG_NORM)
548 AC_SUBST(CXX_O_FLAG_DEBUG)
549 AC_SUBST(CXX_O_FLAG_NONE)
550 ])
551
552 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
553 [
554 # Special extras...
555 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
556 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
557 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
558 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
559 fi
560 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
561 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
562 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
563 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt"
564 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt"
565 fi
566
567 CFLAGS_JDK="${CFLAGS_JDK} $EXTRA_CFLAGS"
568 CXXFLAGS_JDK="${CXXFLAGS_JDK} $EXTRA_CXXFLAGS"
569 LDFLAGS_JDK="${LDFLAGS_JDK} $EXTRA_LDFLAGS"
570
571 ###############################################################################
572 #
573 # Now setup the CFLAGS and LDFLAGS for the JDK build.
574 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
575 #
576
577 # Setup compiler/platform specific flags into
578 # CFLAGS_JDK - C Compiler flags
579 # CXXFLAGS_JDK - C++ Compiler flags
580 # COMMON_CCXXFLAGS_JDK - common to C and C++
581 if test "x$TOOLCHAIN_TYPE" = xgcc; then
582 if test "x$OPENJDK_TARGET_CPU" = xx86; then
583 # Force compatibility with i586 on 32 bit intel platforms.
584 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586"
585 fi
586 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
587 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
588 case $OPENJDK_TARGET_CPU_ARCH in
589 arm )
590 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
591 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
592 ;;
593 ppc )
594 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing
595 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
596 ;;
597 * )
598 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer"
599 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
600 ;;
601 esac
602 elif test "x$TOOLCHAIN_TYPE" = xclang; then
603 if test "x$OPENJDK_TARGET_OS" = xlinux; then
604 if test "x$OPENJDK_TARGET_CPU" = xx86; then
605 # Force compatibility with i586 on 32 bit intel platforms.
606 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586"
607 fi
608 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
609 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
610 case $OPENJDK_TARGET_CPU_ARCH in
611 ppc )
612 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing
613 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
614 ;;
615 * )
616 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer"
617 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
618 ;;
619 esac
620 fi
621 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
622 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
623 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
624 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
625 fi
626
627 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
628 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
629 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
630 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
631 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
632 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
633 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK \
634 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
635 -DWIN32_LEAN_AND_MEAN \
636 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
637 -D_WINSOCK_DEPRECATED_NO_WARNINGS \
638 -DWIN32 -DIAL"
639 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
640 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64"
641 else
642 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86"
643 fi
644 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to
645 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual
646 # studio.
647 if test "x$TOOLCHAIN_VERSION" = "x2010"; then
648 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \
649 -D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"
650 fi
651 fi
652
653 ###############################################################################
654
655 # Adjust flags according to debug level.
656 case $DEBUG_LEVEL in
657 fastdebug | slowdebug )
658 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS"
659 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS"
660 JAVAC_FLAGS="$JAVAC_FLAGS -g"
661 ;;
662 release )
663 ;;
664 * )
665 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
666 ;;
667 esac
668
669 # Setup LP64
670 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64"
671
672 # Set some common defines. These works for all compilers, but assume
673 # -D is universally accepted.
674
675 # Setup endianness
676 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
677 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
678 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
679 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
680 # Note: -Dmacro is the same as #define macro 1
681 # -Dmacro= is the same as #define macro
682 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
683 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
684 else
685 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
686 fi
687 else
688 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they
689 # are defined in the system?
690 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
691 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN="
692 else
693 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN"
694 fi
695 fi
696
697 # Setup target OS define. Use OS target name but in upper case.
698 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
699 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
700
701 # Setup target CPU
702 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
703
704 # Setup debug/release defines
705 if test "x$DEBUG_LEVEL" = xrelease; then
706 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG"
707 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
708 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED"
709 fi
710 else
711 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG"
712 fi
713
714 # Set some additional per-OS defines.
715 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
716 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
717 elif test "x$OPENJDK_TARGET_OS" = xaix; then
718 # FIXME: PPC64 should not be here.
719 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DPPC64"
720 elif test "x$OPENJDK_TARGET_OS" = xbsd; then
721 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
722 fi
723
724 # Additional macosx handling
725 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
726 # Setting these parameters makes it an error to link to macosx APIs that are
727 # newer than the given OS version and makes the linked binaries compatible
728 # even if built on a newer version of the OS.
729 # The expected format is X.Y.Z
730 MACOSX_VERSION_MIN=10.7.0
731 AC_SUBST(MACOSX_VERSION_MIN)
732
733 # The macro takes the version with no dots, ex: 1070
734 # Let the flags variables get resolved in make for easier override on make
735 # command line.
736 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
737 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
738 fi
739
740 # Setup some hard coded includes
741 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \
742 -I${JDK_TOPDIR}/src/java.base/share/native/include \
743 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \
744 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include \
745 -I${JDK_TOPDIR}/src/java.base/share/native/libjava \
746 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava"
747
748 # The shared libraries are compiled using the picflag.
749 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
750 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
751
752 # Executable flags
753 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
754 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
755
756 AC_SUBST(CFLAGS_JDKLIB)
757 AC_SUBST(CFLAGS_JDKEXE)
758 AC_SUBST(CXXFLAGS_JDKLIB)
759 AC_SUBST(CXXFLAGS_JDKEXE)
760
761 # Flags for compiling test libraries
762 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
763 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
764
765 # Flags for compiling test executables
766 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
767 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
768
769 AC_SUBST(CFLAGS_TESTLIB)
770 AC_SUBST(CFLAGS_TESTEXE)
771 AC_SUBST(CXXFLAGS_TESTLIB)
772 AC_SUBST(CXXFLAGS_TESTEXE)
773
774 # Setup LDFLAGS et al.
775 #
776
777 # Now this is odd. The JDK native libraries have to link against libjvm.so
778 # On 32-bit machines there is normally two distinct libjvm.so:s, client and server.
779 # Which should we link to? Are we lucky enough that the binary api to the libjvm.so library
780 # is identical for client and server? Yes. Which is picked at runtime (client or server)?
781 # Neither, since the chosen libjvm.so has already been loaded by the launcher, all the following
782 # libraries will link to whatever is in memory. Yuck.
783 #
784 # Thus we offer the compiler to find libjvm.so first in server then in client. It works. Ugh.
785 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
786 LDFLAGS_JDK="$LDFLAGS_JDK -nologo -opt:ref -incremental:no"
787 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
788 LDFLAGS_JDK="$LDFLAGS_JDK -safeseh"
789 fi
790 # TODO: make -debug optional "--disable-full-debug-symbols"
791 LDFLAGS_JDK="$LDFLAGS_JDK -debug"
792 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
793 # If this is a --hash-style=gnu system, use --hash-style=both, why?
794 # We have previously set HAS_GNU_HASH if this is the case
795 if test -n "$HAS_GNU_HASH"; then
796 LDFLAGS_JDK="${LDFLAGS_JDK} -Wl,--hash-style=both"
797 fi
798 if test "x$OPENJDK_TARGET_OS" = xlinux; then
799 # And since we now know that the linker is gnu, then add -z defs, to forbid
800 # undefined symbols in object files.
801 LDFLAGS_JDK="${LDFLAGS_JDK} -Wl,-z,defs"
802 case $DEBUG_LEVEL in
803 release )
804 # tell linker to optimize libraries.
805 # Should this be supplied to the OSS linker as well?
806 LDFLAGS_JDK="${LDFLAGS_JDK} -Wl,-O1"
807 ;;
808 slowdebug )
809 if test "x$HAS_LINKER_NOW" = "xtrue"; then
810 # do relocations at load
811 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_NOW_FLAG"
812 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_NOW_FLAG"
813 fi
814 if test "x$HAS_LINKER_RELRO" = "xtrue"; then
815 # mark relocations read only
816 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG"
817 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG"
818 fi
819 ;;
820 fastdebug )
821 if test "x$HAS_LINKER_RELRO" = "xtrue"; then
822 # mark relocations read only
823 LDFLAGS_JDK="$LDFLAGS_JDK $LINKER_RELRO_FLAG"
824 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG"
825 fi
826 ;;
827 * )
828 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
829 ;;
830 esac
831 fi
832 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
833 LDFLAGS_JDK="$LDFLAGS_JDK -Wl,-z,defs -xildoff -ztext"
834 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK -norunpath -xnolib"
835 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
836 LDFLAGS_JDK="${LDFLAGS_JDK} -brtl -bnolibpath -bexpall -bernotok"
837 fi
838
839 # Customize LDFLAGS for executables
840
841 LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
842
843 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
844 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
845 LDFLAGS_STACK_SIZE=1048576
846 else
847 LDFLAGS_STACK_SIZE=327680
848 fi
849 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE"
850 elif test "x$OPENJDK_TARGET_OS" = xlinux; then
851 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Wl,--allow-shlib-undefined"
852 fi
853
854 # Customize LDFLAGS for libs
855 LDFLAGS_JDKLIB="${LDFLAGS_JDK}"
856
857 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS}"
858 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
859 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \
860 -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base"
861 JDKLIB_LIBS=""
862 else
863 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \
864 -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}"
865
866 # On some platforms (mac) the linker warns about non existing -L dirs.
867 # Add server first if available. Linking aginst client does not always produce the same results.
868 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
869 # Default to server for other variants.
870 if test "x$JVM_VARIANT_SERVER" = xtrue; then
871 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
872 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
873 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client"
874 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
875 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
876 else
877 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
878 fi
879
880 JDKLIB_LIBS="-ljava -ljvm"
881 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
882 JDKLIB_LIBS="$JDKLIB_LIBS -lc"
883 fi
884 fi
885
886 AC_SUBST(LDFLAGS_JDKLIB)
887 AC_SUBST(LDFLAGS_JDKEXE)
888 AC_SUBST(JDKLIB_LIBS)
889 AC_SUBST(JDKEXE_LIBS)
890 AC_SUBST(LDFLAGS_CXX_JDK)
891
892 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB"
893 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE"
894
895 AC_SUBST(LDFLAGS_TESTLIB)
896 AC_SUBST(LDFLAGS_TESTEXE)
897 ])
898
899 # FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE],
900 # IF_FALSE: [RUN-IF-FALSE])
901 # ------------------------------------------------------------
902 # Check that the c and c++ compilers support an argument
903 BASIC_DEFUN_NAMED([FLAGS_COMPILER_CHECK_ARGUMENTS],
904 [*ARGUMENT IF_TRUE IF_FALSE], [$@],
905 [
906 AC_MSG_CHECKING([if compiler supports "ARG_ARGUMENT"])
907 supports=yes
908
909 saved_cflags="$CFLAGS"
910 CFLAGS="$CFLAGS ARG_ARGUMENT"
911 AC_LANG_PUSH([C])
912 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
913 [supports=no])
914 AC_LANG_POP([C])
915 CFLAGS="$saved_cflags"
916
917 saved_cxxflags="$CXXFLAGS"
918 CXXFLAGS="$CXXFLAG ARG_ARGUMENT"
919 AC_LANG_PUSH([C++])
920 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
921 [supports=no])
922 AC_LANG_POP([C++])
923 CXXFLAGS="$saved_cxxflags"
924
925 AC_MSG_RESULT([$supports])
926 if test "x$supports" = "xyes" ; then
927 :
928 ARG_IF_TRUE
929 else
930 :
931 ARG_IF_FALSE
932 fi
933 ])
934
935 # FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE],
936 # IF_FALSE: [RUN-IF-FALSE])
937 # ------------------------------------------------------------
938 # Check that the linker support an argument
939 BASIC_DEFUN_NAMED([FLAGS_LINKER_CHECK_ARGUMENTS],
940 [*ARGUMENT IF_TRUE IF_FALSE], [$@],
941 [
942 AC_MSG_CHECKING([if linker supports "ARG_ARGUMENT"])
943 supports=yes
944
945 saved_ldflags="$LDFLAGS"
946 LDFLAGS="$LDFLAGS ARG_ARGUMENT"
947 AC_LANG_PUSH([C])
948 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],
949 [], [supports=no])
950 AC_LANG_POP([C])
951 LDFLAGS="$saved_ldflags"
952
953 AC_MSG_RESULT([$supports])
954 if test "x$supports" = "xyes" ; then
955 :
956 ARG_IF_TRUE
957 else
958 :
959 ARG_IF_FALSE
960 fi
961 ])
962
963 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
964 [
965 # Some Zero and Shark settings.
966 # ZERO_ARCHFLAG tells the compiler which mode to build for
967 case "${OPENJDK_TARGET_CPU}" in
968 s390)
969 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
970 ;;
971 *)
972 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
973 esac
974 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$ZERO_ARCHFLAG], IF_FALSE: [ZERO_ARCHFLAG=""])
975 AC_SUBST(ZERO_ARCHFLAG)
976
977 # Check that the compiler supports -mX (or -qX on AIX) flags
978 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
979 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
980 IF_TRUE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
981 IF_FALSE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
982 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
983
984 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors],
985 [do not consider native warnings to be an error @<:@enabled@:>@])])
986
987 AC_MSG_CHECKING([if native warnings are errors])
988 if test "x$enable_warnings_as_errors" = "xyes"; then
989 AC_MSG_RESULT([yes (explicitely set)])
990 WARNINGS_AS_ERRORS=true
991 elif test "x$enable_warnings_as_errors" = "xno"; then
992 AC_MSG_RESULT([no])
993 WARNINGS_AS_ERRORS=false
994 elif test "x$enable_warnings_as_errors" = "x"; then
995 AC_MSG_RESULT([yes (default)])
996 WARNINGS_AS_ERRORS=true
997 else
998 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument])
999 fi
1000
1001 if test "x$WARNINGS_AS_ERRORS" = "xfalse"; then
1002 # Set legacy hotspot variable
1003 HOTSPOT_SET_WARNINGS_AS_ERRORS="WARNINGS_ARE_ERRORS="
1004 else
1005 HOTSPOT_SET_WARNINGS_AS_ERRORS=""
1006 fi
1007
1008 AC_SUBST(WARNINGS_AS_ERRORS)
1009 AC_SUBST(HOTSPOT_SET_WARNINGS_AS_ERRORS)
1010
1011 case "${TOOLCHAIN_TYPE}" in
1012 microsoft)
1013 DISABLE_WARNING_PREFIX="-wd"
1014 CFLAGS_WARNINGS_ARE_ERRORS="-WX"
1015 ;;
1016 solstudio)
1017 DISABLE_WARNING_PREFIX="-erroff="
1018 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all"
1019 ;;
1020 gcc)
1021 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error
1022 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist],
1023 IF_TRUE: [GCC_CAN_DISABLE_WARNINGS=true],
1024 IF_FALSE: [GCC_CAN_DISABLE_WARNINGS=false]
1025 )
1026 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then
1027 DISABLE_WARNING_PREFIX="-Wno-"
1028 else
1029 DISABLE_WARNING_PREFIX=
1030 fi
1031 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
1032 # Repeate the check for the BUILD_CC
1033 CC_OLD="$CC"
1034 CC="$BUILD_CC"
1035 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist],
1036 IF_TRUE: [BUILD_CC_CAN_DISABLE_WARNINGS=true],
1037 IF_FALSE: [BUILD_CC_CAN_DISABLE_WARNINGS=false]
1038 )
1039 if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then
1040 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
1041 else
1042 BUILD_CC_DISABLE_WARNING_PREFIX=
1043 fi
1044 CC="$CC_OLD"
1045 ;;
1046 clang)
1047 DISABLE_WARNING_PREFIX="-Wno-"
1048 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
1049 ;;
1050 esac
1051 AC_SUBST(DISABLE_WARNING_PREFIX)
1052 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
1053 ])