1 #
2 # Copyright (c) 2011, 2016, 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. Must also add -I-xbuiltin to enable
84 # inlining of system functions and intrinsics.
85 $1SYSROOT_CFLAGS="-I-xbuiltin -I[$]$1SYSROOT/usr/include"
86 $1SYSROOT_LDFLAGS="-L[$]$1SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \
87 -L[$]$1SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR \
88 -L[$]$1SYSROOT/usr/ccs/lib$OPENJDK_TARGET_CPU_ISADIR"
89 fi
90 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
91 $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT"
92 $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT"
93 elif test "x$TOOLCHAIN_TYPE" = xclang; then
94 $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT"
95 $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT"
96 fi
97 # Propagate the sysroot args to hotspot
98 $1LEGACY_EXTRA_CFLAGS="[$]$1LEGACY_EXTRA_CFLAGS [$]$1SYSROOT_CFLAGS"
99 $1LEGACY_EXTRA_CXXFLAGS="[$]$1LEGACY_EXTRA_CXXFLAGS [$]$1SYSROOT_CFLAGS"
100 $1LEGACY_EXTRA_LDFLAGS="[$]$1LEGACY_EXTRA_LDFLAGS [$]$1SYSROOT_LDFLAGS"
101 # The global CFLAGS and LDFLAGS variables need these for configure to function
102 $1CFLAGS="[$]$1CFLAGS [$]$1SYSROOT_CFLAGS"
103 $1CPPFLAGS="[$]$1CPPFLAGS [$]$1SYSROOT_CFLAGS"
104 $1CXXFLAGS="[$]$1CXXFLAGS [$]$1SYSROOT_CFLAGS"
105 $1LDFLAGS="[$]$1LDFLAGS [$]$1SYSROOT_LDFLAGS"
106 fi
107
108 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
109 # We also need -iframework<path>/System/Library/Frameworks
110 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks"
111 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks"
112 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework
113 # set this here so it doesn't have to be peppered throughout the forest
114 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
115 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
116 fi
117
118 AC_SUBST($1SYSROOT_CFLAGS)
119 AC_SUBST($1SYSROOT_LDFLAGS)
120 ])
121
122 AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS],
123 [
124 # COMPILER_TARGET_BITS_FLAG : option for selecting 32- or 64-bit output
125 # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler
126 if test "x$TOOLCHAIN_TYPE" = xxlc; then
127 COMPILER_TARGET_BITS_FLAG="-q"
128 COMPILER_COMMAND_FILE_FLAG="-f"
129 else
130 COMPILER_TARGET_BITS_FLAG="-m"
131 COMPILER_COMMAND_FILE_FLAG="@"
132
133 # The solstudio linker does not support @-files.
134 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
135 COMPILER_COMMAND_FILE_FLAG=
136 fi
137
138 # Check if @file is supported by gcc
139 if test "x$TOOLCHAIN_TYPE" = xgcc; then
140 AC_MSG_CHECKING([if @file is supported by gcc])
141 # Extra emtpy "" to prevent ECHO from interpreting '--version' as argument
142 $ECHO "" "--version" > command.file
143 if $CXX @command.file 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then
144 AC_MSG_RESULT(yes)
145 COMPILER_COMMAND_FILE_FLAG="@"
146 else
147 AC_MSG_RESULT(no)
148 COMPILER_COMMAND_FILE_FLAG=
149 fi
150 rm -rf command.file
151 fi
152 fi
153 AC_SUBST(COMPILER_TARGET_BITS_FLAG)
154 AC_SUBST(COMPILER_COMMAND_FILE_FLAG)
155
156 # FIXME: figure out if we should select AR flags depending on OS or toolchain.
157 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
158 ARFLAGS="-r"
159 elif test "x$OPENJDK_TARGET_OS" = xaix; then
160 ARFLAGS="-X64"
161 elif test "x$OPENJDK_TARGET_OS" = xwindows; then
162 # lib.exe is used as AR to create static libraries.
163 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"
164 else
165 ARFLAGS=""
166 fi
167 AC_SUBST(ARFLAGS)
168
169 ## Setup strip.
170 # FIXME: should this really be per platform, or should it be per toolchain type?
171 # strip is not provided by clang or solstudio; so guessing platform makes most sense.
172 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD.
173 if test "x$OPENJDK_TARGET_OS" = xlinux; then
174 STRIPFLAGS="-g"
175 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then
176 STRIPFLAGS="-x"
177 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then
178 STRIPFLAGS="-S"
179 elif test "x$OPENJDK_TARGET_OS" = xaix; then
180 STRIPFLAGS="-X32_64"
181 fi
182
183 AC_SUBST(STRIPFLAGS)
184
185 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
186 CC_OUT_OPTION=-Fo
187 EXE_OUT_OPTION=-out:
188 LD_OUT_OPTION=-out:
189 AR_OUT_OPTION=-out:
190 else
191 # The option used to specify the target .o,.a or .so file.
192 # When compiling, how to specify the to be created object file.
193 CC_OUT_OPTION='-o$(SPACE)'
194 # When linking, how to specify the to be created executable.
195 EXE_OUT_OPTION='-o$(SPACE)'
196 # When linking, how to specify the to be created dynamically linkable library.
197 LD_OUT_OPTION='-o$(SPACE)'
198 # When archiving, how to specify the to be create static archive for object files.
199 AR_OUT_OPTION='rcs$(SPACE)'
200 fi
201 AC_SUBST(CC_OUT_OPTION)
202 AC_SUBST(EXE_OUT_OPTION)
203 AC_SUBST(LD_OUT_OPTION)
204 AC_SUBST(AR_OUT_OPTION)
205
206 # On Windows, we need to set RC flags.
207 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
208 RC_FLAGS="-nologo -l0x409"
209 if test "x$DEBUG_LEVEL" = xrelease; then
210 RC_FLAGS="$RC_FLAGS -DNDEBUG"
211 fi
212
213 # The version variables used to create RC_FLAGS may be overridden
214 # in a custom configure script, or possibly the command line.
215 # Let those variables be expanded at make time in spec.gmk.
216 # The \$ are escaped to the shell, and the $(...) variables
217 # are evaluated by make.
218 RC_FLAGS="$RC_FLAGS \
219 -D\"JDK_VERSION_STRING=\$(VERSION_STRING)\" \
220 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \
221 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \
222 -D\"JDK_VER=\$(VERSION_NUMBER)\" \
223 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \
224 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(VERSION_MAJOR)\" \
225 -D\"JDK_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\""
226 fi
227 AC_SUBST(RC_FLAGS)
228
229 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
230 # silence copyright notice and other headers.
231 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo"
232 fi
233 ])
234
235 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
236 [
237 ###############################################################################
238 #
239 # How to compile shared libraries.
240 #
241
242 if test "x$TOOLCHAIN_TYPE" = xgcc; then
243 PICFLAG="-fPIC"
244 C_FLAG_REORDER=''
245 CXX_FLAG_REORDER=''
246
247 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
248 # Linking is different on MacOSX
249 if test "x$STATIC_BUILD" = xtrue; then
250 SHARED_LIBRARY_FLAGS ='-undefined dynamic_lookup'
251 else
252 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
253 fi
254 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.'
255 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
256 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1'
257 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1'
258 else
259 # Default works for linux, might work on other platforms as well.
260 SHARED_LIBRARY_FLAGS='-shared'
261 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1'
262 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
263 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
264 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
265 fi
266 elif test "x$TOOLCHAIN_TYPE" = xclang; then
267 C_FLAG_REORDER=''
268 CXX_FLAG_REORDER=''
269
270 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
271 # Linking is different on MacOSX
272 PICFLAG=''
273 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
274 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path/.'
275 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
276 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1'
277 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1'
278 else
279 # Default works for linux, might work on other platforms as well.
280 PICFLAG='-fPIC'
281 SHARED_LIBRARY_FLAGS='-shared'
282 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1'
283 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
284 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
285 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
286 fi
287 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
288 PICFLAG="-KPIC"
289 C_FLAG_REORDER='-xF'
290 CXX_FLAG_REORDER='-xF'
291 SHARED_LIBRARY_FLAGS="-G"
292 SET_EXECUTABLE_ORIGIN='-R\$$$$ORIGIN[$]1'
293 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
294 SET_SHARED_LIBRARY_NAME='-h [$]1'
295 SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
296 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
297 PICFLAG="-qpic=large"
298 C_FLAG_REORDER=''
299 CXX_FLAG_REORDER=''
300 SHARED_LIBRARY_FLAGS="-qmkshrobj"
301 SET_EXECUTABLE_ORIGIN=""
302 SET_SHARED_LIBRARY_ORIGIN=''
303 SET_SHARED_LIBRARY_NAME=''
304 SET_SHARED_LIBRARY_MAPFILE=''
305 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
306 PICFLAG=""
307 C_FLAG_REORDER=''
308 CXX_FLAG_REORDER=''
309 SHARED_LIBRARY_FLAGS="-dll"
310 SET_EXECUTABLE_ORIGIN=''
311 SET_SHARED_LIBRARY_ORIGIN=''
312 SET_SHARED_LIBRARY_NAME=''
313 SET_SHARED_LIBRARY_MAPFILE='-def:[$]1'
314 fi
315
316 AC_SUBST(C_FLAG_REORDER)
317 AC_SUBST(CXX_FLAG_REORDER)
318 AC_SUBST(SET_EXECUTABLE_ORIGIN)
319 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
320 AC_SUBST(SET_SHARED_LIBRARY_NAME)
321 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
322 AC_SUBST(SHARED_LIBRARY_FLAGS)
323
324 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
325 CFLAGS_JDK="${CFLAGS_JDK} -D__solaris__"
326 CXXFLAGS_JDK="${CXXFLAGS_JDK} -D__solaris__"
327 CFLAGS_JDKLIB_EXTRA='-xstrconst'
328 fi
329 # The (cross) compiler is now configured, we can now test capabilities
330 # of the target platform.
331 ])
332
333 # Documentation on common flags used for solstudio in HIGHEST.
334 #
335 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
336 # done with care, there are some assumptions below that need to
337 # be understood about the use of pointers, and IEEE behavior.
338 #
339 # -fns: Use non-standard floating point mode (not IEEE 754)
340 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)
341 # -fsingle: Use single precision floating point with 'float'
342 # -xalias_level=basic: Assume memory references via basic pointer types do not alias
343 # (Source with excessing pointer casting and data access with mixed
344 # pointer types are not recommended)
345 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions
346 # (If you expect perfect errno behavior, do not use this)
347 # -xdepend: Loop data dependency optimizations (need -xO3 or higher)
348 # -xrestrict: Pointer parameters to functions do not overlap
349 # (Similar to -xalias_level=basic usage, but less obvious sometimes.
350 # If you pass in multiple pointers to the same data, do not use this)
351 # -xlibmil: Inline some library routines
352 # (If you expect perfect errno behavior, do not use this)
353 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)
354 # (If you expect perfect errno behavior, do not use this)
355 # Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
356
357 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.
358 # Bug?
359 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then
360 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
361 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
362 #fi
363
364 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
365 [
366
367 ###############################################################################
368 #
369 # Setup the opt flags for different compilers
370 # and different operating systems.
371 #
372
373 # FIXME: this was indirectly the old default, but just inherited.
374 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
375 # C_FLAG_DEPS="-MMD -MF"
376 # fi
377
378 # Generate make dependency files
379 if test "x$TOOLCHAIN_TYPE" = xgcc; then
380 C_FLAG_DEPS="-MMD -MF"
381 elif test "x$TOOLCHAIN_TYPE" = xclang; then
382 C_FLAG_DEPS="-MMD -MF"
383 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
384 C_FLAG_DEPS="-xMMD -xMF"
385 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
386 C_FLAG_DEPS="-qmakedep=gcc -MF"
387 fi
388 CXX_FLAG_DEPS="$C_FLAG_DEPS"
389 AC_SUBST(C_FLAG_DEPS)
390 AC_SUBST(CXX_FLAG_DEPS)
391
392 # Debug symbols
393 if test "x$TOOLCHAIN_TYPE" = xgcc; then
394 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
395 # reduce from default "-g2" option to save space
396 CFLAGS_DEBUG_SYMBOLS="-g1"
397 CXXFLAGS_DEBUG_SYMBOLS="-g1"
398 else
399 CFLAGS_DEBUG_SYMBOLS="-g"
400 CXXFLAGS_DEBUG_SYMBOLS="-g"
401 fi
402 elif test "x$TOOLCHAIN_TYPE" = xclang; then
403 CFLAGS_DEBUG_SYMBOLS="-g"
404 CXXFLAGS_DEBUG_SYMBOLS="-g"
405 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
406 CFLAGS_DEBUG_SYMBOLS="-g -xs"
407 # -g0 enables debug symbols without disabling inlining.
408 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
409 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
410 CFLAGS_DEBUG_SYMBOLS="-g"
411 CXXFLAGS_DEBUG_SYMBOLS="-g"
412 fi
413 AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
414 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
415
416 # bounds, memory and behavior checking options
417 if test "x$TOOLCHAIN_TYPE" = xgcc; then
418 case $DEBUG_LEVEL in
419 release )
420 # no adjustment
421 ;;
422 fastdebug )
423 # no adjustment
424 ;;
425 slowdebug )
426 # FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS it
427 # get's added contitionally on whether we produce debug symbols or not.
428 # This is most likely not really correct.
429
430 # Add runtime stack smashing and undefined behavior checks.
431 # Not all versions of gcc support -fstack-protector
432 STACK_PROTECTOR_CFLAG="-fstack-protector-all"
433 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG -Werror], IF_FALSE: [STACK_PROTECTOR_CFLAG=""])
434
435 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
436 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
437 ;;
438 esac
439 fi
440
441 # Optimization levels
442 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
443 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil"
444
445 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
446 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
447 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr"
448 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
449 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
450 C_O_FLAG_DEBUG="-xregs=no%frameptr"
451 C_O_FLAG_NONE="-xregs=no%frameptr"
452 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
453 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
454 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
455 CXX_O_FLAG_DEBUG="-xregs=no%frameptr"
456 CXX_O_FLAG_NONE="-xregs=no%frameptr"
457 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
458 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
459 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
460 fi
461 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
462 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra"
463 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
464 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
465 C_O_FLAG_DEBUG=""
466 C_O_FLAG_NONE=""
467 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
468 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
469 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
470 CXX_O_FLAG_DEBUG=""
471 CXX_O_FLAG_NONE=""
472 fi
473 else
474 # The remaining toolchains share opt flags between CC and CXX;
475 # setup for C and duplicate afterwards.
476 if test "x$TOOLCHAIN_TYPE" = xgcc; then
477 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
478 # On MacOSX we optimize for size, something
479 # we should do for all platforms?
480 C_O_FLAG_HIGHEST="-Os"
481 C_O_FLAG_HI="-Os"
482 C_O_FLAG_NORM="-Os"
483 else
484 C_O_FLAG_HIGHEST="-O3"
485 C_O_FLAG_HI="-O3"
486 C_O_FLAG_NORM="-O2"
487 fi
488 C_O_FLAG_DEBUG="-O0"
489 C_O_FLAG_NONE="-O0"
490 elif test "x$TOOLCHAIN_TYPE" = xclang; then
491 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
492 # On MacOSX we optimize for size, something
493 # we should do for all platforms?
494 C_O_FLAG_HIGHEST="-Os"
495 C_O_FLAG_HI="-Os"
496 C_O_FLAG_NORM="-Os"
497 else
498 C_O_FLAG_HIGHEST="-O3"
499 C_O_FLAG_HI="-O3"
500 C_O_FLAG_NORM="-O2"
501 fi
502 C_O_FLAG_DEBUG="-O0"
503 C_O_FLAG_NONE="-O0"
504 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
505 C_O_FLAG_HIGHEST="-O3"
506 C_O_FLAG_HI="-O3 -qstrict"
507 C_O_FLAG_NORM="-O2"
508 C_O_FLAG_DEBUG="-qnoopt"
509 C_O_FLAG_NONE="-qnoopt"
510 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
511 C_O_FLAG_HIGHEST="-O2"
512 C_O_FLAG_HI="-O1"
513 C_O_FLAG_NORM="-O1"
514 C_O_FLAG_DEBUG="-Od"
515 C_O_FLAG_NONE="-Od"
516 fi
517 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
518 CXX_O_FLAG_HI="$C_O_FLAG_HI"
519 CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
520 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG"
521 CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
522 fi
523
524 # Adjust optimization flags according to debug level.
525 case $DEBUG_LEVEL in
526 release )
527 # no adjustment
528 ;;
529 fastdebug )
530 # Not quite so much optimization
531 C_O_FLAG_HI="$C_O_FLAG_NORM"
532 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
533 ;;
534 slowdebug )
535 # Disable optimization
536 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG"
537 C_O_FLAG_HI="$C_O_FLAG_DEBUG"
538 C_O_FLAG_NORM="$C_O_FLAG_DEBUG"
539 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG"
540 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG"
541 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG"
542 ;;
543 esac
544
545 AC_SUBST(C_O_FLAG_HIGHEST)
546 AC_SUBST(C_O_FLAG_HI)
547 AC_SUBST(C_O_FLAG_NORM)
548 AC_SUBST(C_O_FLAG_DEBUG)
549 AC_SUBST(C_O_FLAG_NONE)
550 AC_SUBST(CXX_O_FLAG_HIGHEST)
551 AC_SUBST(CXX_O_FLAG_HI)
552 AC_SUBST(CXX_O_FLAG_NORM)
553 AC_SUBST(CXX_O_FLAG_DEBUG)
554 AC_SUBST(CXX_O_FLAG_NONE)
555 ])
556
557 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
558 [
559 # Special extras...
560 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
561 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
562 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
563 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
564 fi
565 CFLAGS_JDKLIB_EXTRA="${CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
566 CXXFLAGS_JDKLIB_EXTRA="${CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
567 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
568 CFLAGS_JDK="${CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt"
569 CXXFLAGS_JDK="${CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt"
570 fi
571
572 CFLAGS_JDK="${CFLAGS_JDK} $EXTRA_CFLAGS"
573 CXXFLAGS_JDK="${CXXFLAGS_JDK} $EXTRA_CXXFLAGS"
574 LDFLAGS_JDK="${LDFLAGS_JDK} $EXTRA_LDFLAGS"
575
576 ###############################################################################
577 #
578 # Now setup the CFLAGS and LDFLAGS for the JDK build.
579 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
580 #
581
582 # Setup compiler/platform specific flags into
583 # CFLAGS_JDK - C Compiler flags
584 # CXXFLAGS_JDK - C++ Compiler flags
585 # COMMON_CCXXFLAGS_JDK - common to C and C++
586 if test "x$TOOLCHAIN_TYPE" = xgcc; then
587 if test "x$OPENJDK_TARGET_CPU" = xx86; then
588 # Force compatibility with i586 on 32 bit intel platforms.
589 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586"
590 fi
591 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
592 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
593 case $OPENJDK_TARGET_CPU_ARCH in
594 arm )
595 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
596 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
597 ;;
598 ppc )
599 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing
600 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
601 ;;
602 * )
603 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer"
604 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
605 ;;
606 esac
607 elif test "x$TOOLCHAIN_TYPE" = xclang; then
608 if test "x$OPENJDK_TARGET_OS" = xlinux; then
609 if test "x$OPENJDK_TARGET_CPU" = xx86; then
610 # Force compatibility with i586 on 32 bit intel platforms.
611 COMMON_CCXXFLAGS="${COMMON_CCXXFLAGS} -march=i586"
612 fi
613 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
614 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
615 case $OPENJDK_TARGET_CPU_ARCH in
616 ppc )
617 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing
618 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
619 ;;
620 * )
621 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer"
622 CFLAGS_JDK="${CFLAGS_JDK} -fno-strict-aliasing"
623 ;;
624 esac
625 fi
626 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
627 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
628 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86; then
629 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_TARGET_CPU_LEGACY_LIB"
630 fi
631
632 CFLAGS_JDK="$CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
633 CXXFLAGS_JDK="$CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
634 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
635 CFLAGS_JDK="$CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
636 CXXFLAGS_JDK="$CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
637 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
638 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS $COMMON_CCXXFLAGS_JDK \
639 -Zi -MD -Zc:wchar_t- -W3 -wd4800 \
640 -DWIN32_LEAN_AND_MEAN \
641 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
642 -D_WINSOCK_DEPRECATED_NO_WARNINGS \
643 -DWIN32 -DIAL"
644 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
645 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64"
646 else
647 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86"
648 fi
649 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to
650 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual
651 # studio.
652 if test "x$TOOLCHAIN_VERSION" = "x2010"; then
653 STATIC_CPPLIB_FLAGS="-D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"
654 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $STATIC_CPPLIB_FLAGS"
655 fi
656 fi
657
658 ###############################################################################
659
660 # Adjust flags according to debug level.
661 case $DEBUG_LEVEL in
662 fastdebug | slowdebug )
663 CFLAGS_JDK="$CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS"
664 CXXFLAGS_JDK="$CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS"
665 JAVAC_FLAGS="$JAVAC_FLAGS -g"
666 ;;
667 release )
668 ;;
669 * )
670 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
671 ;;
672 esac
673
674 # Setup LP64
675 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK $ADD_LP64"
676
677 # Set some common defines. These works for all compilers, but assume
678 # -D is universally accepted.
679
680 # Setup endianness
681 if test "x$OPENJDK_TARGET_CPU_ENDIAN" = xlittle; then
682 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
683 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
684 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
685 # Note: -Dmacro is the same as #define macro 1
686 # -Dmacro= is the same as #define macro
687 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
688 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
689 else
690 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
691 fi
692 else
693 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they
694 # are defined in the system?
695 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
696 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN="
697 else
698 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN"
699 fi
700 fi
701
702 # Setup target OS define. Use OS target name but in upper case.
703 OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
704 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D$OPENJDK_TARGET_OS_UPPERCASE"
705
706 # Setup target CPU
707 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DARCH='\"$OPENJDK_TARGET_CPU_LEGACY\"' -D$OPENJDK_TARGET_CPU_LEGACY"
708
709 # Setup debug/release defines
710 if test "x$DEBUG_LEVEL" = xrelease; then
711 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DNDEBUG"
712 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
713 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DTRIMMED"
714 fi
715 else
716 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DDEBUG"
717 fi
718
719 # Set some additional per-OS defines.
720 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
721 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
722 elif test "x$OPENJDK_TARGET_OS" = xbsd; then
723 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
724 fi
725
726 # Additional macosx handling
727 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
728 # Setting these parameters makes it an error to link to macosx APIs that are
729 # newer than the given OS version and makes the linked binaries compatible
730 # even if built on a newer version of the OS.
731 # The expected format is X.Y.Z
732 MACOSX_VERSION_MIN=10.7.0
733 AC_SUBST(MACOSX_VERSION_MIN)
734
735 # The macro takes the version with no dots, ex: 1070
736 # Let the flags variables get resolved in make for easier override on make
737 # command line.
738 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MIN)) -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
739 LDFLAGS_JDK="$LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
740 fi
741
742 # Setup some hard coded includes
743 COMMON_CCXXFLAGS_JDK="$COMMON_CCXXFLAGS_JDK \
744 -I${JDK_TOPDIR}/src/java.base/share/native/include \
745 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS/native/include \
746 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/include \
747 -I${JDK_TOPDIR}/src/java.base/share/native/libjava \
748 -I${JDK_TOPDIR}/src/java.base/$OPENJDK_TARGET_OS_TYPE/native/libjava"
749
750 # The shared libraries are compiled using the picflag.
751 CFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
752 CXXFLAGS_JDKLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
753
754 # Executable flags
755 CFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
756 CXXFLAGS_JDKEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
757
758 AC_SUBST(CFLAGS_JDKLIB)
759 AC_SUBST(CFLAGS_JDKEXE)
760 AC_SUBST(CXXFLAGS_JDKLIB)
761 AC_SUBST(CXXFLAGS_JDKEXE)
762
763 # Flags for compiling test libraries
764 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
765 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
766
767 # Flags for compiling test executables
768 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
769 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
770
771 AC_SUBST(CFLAGS_TESTLIB)
772 AC_SUBST(CFLAGS_TESTEXE)
773 AC_SUBST(CXXFLAGS_TESTLIB)
774 AC_SUBST(CXXFLAGS_TESTEXE)
775
776 # Setup LDFLAGS et al.
777 #
778
779 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
780 LDFLAGS_MICROSOFT="-nologo -opt:ref"
781 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_MICROSOFT -incremental:no"
782 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
783 LDFLAGS_SAFESH="-safeseh"
784 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_SAFESH"
785 fi
786 # TODO: make -debug optional "--disable-full-debug-symbols"
787 LDFLAGS_MICROSOFT_DEBUG="-debug"
788 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_MICROSOFT_DEBUG"
789 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
790 # If this is a --hash-style=gnu system, use --hash-style=both, why?
791 # We have previously set HAS_GNU_HASH if this is the case
792 if test -n "$HAS_GNU_HASH"; then
793 LDFLAGS_HASH_STYLE="-Wl,--hash-style=both"
794 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_HASH_STYLE"
795 fi
796 if test "x$OPENJDK_TARGET_OS" = xlinux; then
797 # And since we now know that the linker is gnu, then add -z defs, to forbid
798 # undefined symbols in object files.
799 LDFLAGS_NO_UNDEF_SYM="-Wl,-z,defs"
800 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_NO_UNDEF_SYM"
801 case $DEBUG_LEVEL in
802 release )
803 # tell linker to optimize libraries.
804 # Should this be supplied to the OSS linker as well?
805 LDFLAGS_DEBUGLEVEL_release="-Wl,-O1"
806 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_DEBUGLEVEL_release"
807 ;;
808 slowdebug )
809 if test "x$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_SOLSTUDIO="-Wl,-z,defs"
834 LDFLAGS_JDK="$LDFLAGS_JDK $LDFLAGS_SOLSTUDIO -xildoff -ztext"
835 LDFLAGS_CXX_SOLSTUDIO="-norunpath"
836 LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LDFLAGS_CXX_SOLSTUDIO -xnolib"
837 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
838 LDFLAGS_XLC="-brtl -bnolibpath -bexpall -bernotok"
839 LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_XLC"
840 fi
841
842 # Customize LDFLAGS for executables
843
844 LDFLAGS_JDKEXE="${LDFLAGS_JDK}"
845
846 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
847 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
848 LDFLAGS_STACK_SIZE=1048576
849 else
850 LDFLAGS_STACK_SIZE=327680
851 fi
852 LDFLAGS_JDKEXE="${LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE"
853 elif test "x$OPENJDK_TARGET_OS" = xlinux; then
854 LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Wl,--allow-shlib-undefined"
855 fi
856
857 # Customize LDFLAGS for libs
858 LDFLAGS_JDKLIB="${LDFLAGS_JDK}"
859
860 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS}"
861 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
862 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \
863 -libpath:${OUTPUT_ROOT}/support/modules_libs/java.base"
864 JDKLIB_LIBS=""
865 else
866 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} \
867 -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}"
868
869 # On some platforms (mac) the linker warns about non existing -L dirs.
870 # Add server first if available. Linking aginst client does not always produce the same results.
871 # Only add client dir if client is being built. Add minimal (note not minimal1) if only building minimal1.
872 # Default to server for other variants.
873 if test "x$JVM_VARIANT_SERVER" = xtrue; then
874 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
875 elif test "x$JVM_VARIANT_CLIENT" = xtrue; then
876 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/client"
877 elif test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
878 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/minimal"
879 else
880 LDFLAGS_JDKLIB="${LDFLAGS_JDKLIB} -L${OUTPUT_ROOT}/support/modules_libs/java.base${OPENJDK_TARGET_CPU_LIBDIR}/server"
881 fi
882
883 JDKLIB_LIBS="-ljava -ljvm"
884 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
885 JDKLIB_LIBS="$JDKLIB_LIBS -lc"
886 fi
887 fi
888
889 AC_SUBST(LDFLAGS_JDKLIB)
890 AC_SUBST(LDFLAGS_JDKEXE)
891 AC_SUBST(JDKLIB_LIBS)
892 AC_SUBST(JDKEXE_LIBS)
893 AC_SUBST(LDFLAGS_CXX_JDK)
894
895 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB"
896 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE"
897
898 AC_SUBST(LDFLAGS_TESTLIB)
899 AC_SUBST(LDFLAGS_TESTEXE)
900 ])
901
902 # FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE],
903 # IF_FALSE: [RUN-IF-FALSE])
904 # ------------------------------------------------------------
905 # Check that the c and c++ compilers support an argument
906 BASIC_DEFUN_NAMED([FLAGS_COMPILER_CHECK_ARGUMENTS],
907 [*ARGUMENT IF_TRUE IF_FALSE], [$@],
908 [
909 AC_MSG_CHECKING([if compiler supports "ARG_ARGUMENT"])
910 supports=yes
911
912 saved_cflags="$CFLAGS"
913 CFLAGS="$CFLAGS ARG_ARGUMENT"
914 AC_LANG_PUSH([C])
915 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
916 [supports=no])
917 AC_LANG_POP([C])
918 CFLAGS="$saved_cflags"
919
920 saved_cxxflags="$CXXFLAGS"
921 CXXFLAGS="$CXXFLAG ARG_ARGUMENT"
922 AC_LANG_PUSH([C++])
923 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
924 [supports=no])
925 AC_LANG_POP([C++])
926 CXXFLAGS="$saved_cxxflags"
927
928 AC_MSG_RESULT([$supports])
929 if test "x$supports" = "xyes" ; then
930 :
931 ARG_IF_TRUE
932 else
933 :
934 ARG_IF_FALSE
935 fi
936 ])
937
938 # FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE],
939 # IF_FALSE: [RUN-IF-FALSE])
940 # ------------------------------------------------------------
941 # Check that the linker support an argument
942 BASIC_DEFUN_NAMED([FLAGS_LINKER_CHECK_ARGUMENTS],
943 [*ARGUMENT IF_TRUE IF_FALSE], [$@],
944 [
945 AC_MSG_CHECKING([if linker supports "ARG_ARGUMENT"])
946 supports=yes
947
948 saved_ldflags="$LDFLAGS"
949 LDFLAGS="$LDFLAGS ARG_ARGUMENT"
950 AC_LANG_PUSH([C])
951 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],
952 [], [supports=no])
953 AC_LANG_POP([C])
954 LDFLAGS="$saved_ldflags"
955
956 AC_MSG_RESULT([$supports])
957 if test "x$supports" = "xyes" ; then
958 :
959 ARG_IF_TRUE
960 else
961 :
962 ARG_IF_FALSE
963 fi
964 ])
965
966 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
967 [
968 # Some Zero and Shark settings.
969 # ZERO_ARCHFLAG tells the compiler which mode to build for
970 case "${OPENJDK_TARGET_CPU}" in
971 s390)
972 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}31"
973 ;;
974 *)
975 ZERO_ARCHFLAG="${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}"
976 esac
977 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$ZERO_ARCHFLAG], IF_FALSE: [ZERO_ARCHFLAG=""])
978 AC_SUBST(ZERO_ARCHFLAG)
979
980 # Check that the compiler supports -mX (or -qX on AIX) flags
981 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
982 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
983 IF_TRUE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
984 IF_FALSE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
985 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
986
987 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors],
988 [do not consider native warnings to be an error @<:@enabled@:>@])])
989
990 AC_MSG_CHECKING([if native warnings are errors])
991 if test "x$enable_warnings_as_errors" = "xyes"; then
992 AC_MSG_RESULT([yes (explicitely set)])
993 WARNINGS_AS_ERRORS=true
994 elif test "x$enable_warnings_as_errors" = "xno"; then
995 AC_MSG_RESULT([no])
996 WARNINGS_AS_ERRORS=false
997 elif test "x$enable_warnings_as_errors" = "x"; then
998 AC_MSG_RESULT([yes (default)])
999 WARNINGS_AS_ERRORS=true
1000 else
1001 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument])
1002 fi
1003
1004 if test "x$WARNINGS_AS_ERRORS" = "xfalse"; then
1005 # Set legacy hotspot variable
1006 HOTSPOT_SET_WARNINGS_AS_ERRORS="WARNINGS_ARE_ERRORS="
1007 else
1008 HOTSPOT_SET_WARNINGS_AS_ERRORS=""
1009 fi
1010
1011 AC_SUBST(WARNINGS_AS_ERRORS)
1012 AC_SUBST(HOTSPOT_SET_WARNINGS_AS_ERRORS)
1013
1014 case "${TOOLCHAIN_TYPE}" in
1015 microsoft)
1016 DISABLE_WARNING_PREFIX="-wd"
1017 CFLAGS_WARNINGS_ARE_ERRORS="-WX"
1018 ;;
1019 solstudio)
1020 DISABLE_WARNING_PREFIX="-erroff="
1021 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all"
1022 ;;
1023 gcc)
1024 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error
1025 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist],
1026 IF_TRUE: [GCC_CAN_DISABLE_WARNINGS=true],
1027 IF_FALSE: [GCC_CAN_DISABLE_WARNINGS=false]
1028 )
1029 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then
1030 DISABLE_WARNING_PREFIX="-Wno-"
1031 else
1032 DISABLE_WARNING_PREFIX=
1033 fi
1034 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
1035 # Repeate the check for the BUILD_CC
1036 CC_OLD="$CC"
1037 CC="$BUILD_CC"
1038 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist],
1039 IF_TRUE: [BUILD_CC_CAN_DISABLE_WARNINGS=true],
1040 IF_FALSE: [BUILD_CC_CAN_DISABLE_WARNINGS=false]
1041 )
1042 if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then
1043 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
1044 else
1045 BUILD_CC_DISABLE_WARNING_PREFIX=
1046 fi
1047 CC="$CC_OLD"
1048 ;;
1049 clang)
1050 DISABLE_WARNING_PREFIX="-Wno-"
1051 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
1052 ;;
1053 xlc)
1054 DISABLE_WARNING_PREFIX="-qsuppress="
1055 CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w"
1056 ;;
1057 esac
1058 AC_SUBST(DISABLE_WARNING_PREFIX)
1059 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
1060 ])