1 #
2 # Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 #
5 # This code is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License version 2 only, as
7 # published by the Free Software Foundation. Oracle designates this
8 # particular file as subject to the "Classpath" exception as provided
9 # by Oracle in the LICENSE file that accompanied this code.
10 #
11 # This code is distributed in the hope that it will be useful, but WITHOUT
12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 # version 2 for more details (a copy is included in the LICENSE file that
15 # accompanied this code).
16 #
17 # You should have received a copy of the GNU General Public License version
18 # 2 along with this work; if not, write to the Free Software Foundation,
19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 #
21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 # or visit www.oracle.com if you need additional information or have any
23 # questions.
24 #
25
26 ################################################################################
27 #
28 # Setup ABI profile (for arm)
29 #
30 AC_DEFUN([FLAGS_SETUP_ABI_PROFILE],
31 [
32 AC_ARG_WITH(abi-profile, [AS_HELP_STRING([--with-abi-profile],
33 [specify ABI profile for ARM builds (arm-vfp-sflt,arm-vfp-hflt,arm-sflt, armv5-vfp-sflt,armv6-vfp-hflt,arm64,aarch64) @<:@toolchain dependent@:>@ ])])
34
35 if test "x$with_abi_profile" != x; then
36 if test "x$OPENJDK_TARGET_CPU" != xarm && \
37 test "x$OPENJDK_TARGET_CPU" != xaarch64; then
38 AC_MSG_ERROR([--with-abi-profile only available on arm/aarch64])
39 fi
40
41 OPENJDK_TARGET_ABI_PROFILE=$with_abi_profile
42 AC_MSG_CHECKING([for ABI profle])
43 AC_MSG_RESULT([$OPENJDK_TARGET_ABI_PROFILE])
44
45 if test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm-vfp-sflt; then
46 ARM_FLOAT_TYPE=vfp-sflt
47 ARM_ARCH_TYPE_FLAGS='-march=armv7-a -mthumb'
48 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm-vfp-hflt; then
49 ARM_FLOAT_TYPE=vfp-hflt
50 ARM_ARCH_TYPE_FLAGS='-march=armv7-a -mthumb'
51 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm-sflt; then
52 ARM_FLOAT_TYPE=sflt
53 ARM_ARCH_TYPE_FLAGS='-march=armv5t -marm'
54 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarmv5-vfp-sflt; then
55 ARM_FLOAT_TYPE=vfp-sflt
56 ARM_ARCH_TYPE_FLAGS='-march=armv5t -marm'
57 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarmv6-vfp-hflt; then
58 ARM_FLOAT_TYPE=vfp-hflt
59 ARM_ARCH_TYPE_FLAGS='-march=armv6 -marm'
60 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm64; then
61 # No special flags, just need to trigger setting JDK_ARCH_ABI_PROP_NAME
62 ARM_FLOAT_TYPE=
63 ARM_ARCH_TYPE_FLAGS=
64 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xaarch64; then
65 # No special flags, just need to trigger setting JDK_ARCH_ABI_PROP_NAME
66 ARM_FLOAT_TYPE=
67 ARM_ARCH_TYPE_FLAGS=
68 else
69 AC_MSG_ERROR([Invalid ABI profile: "$OPENJDK_TARGET_ABI_PROFILE"])
70 fi
71
72 if test "x$ARM_FLOAT_TYPE" = xvfp-sflt; then
73 ARM_FLOAT_TYPE_FLAGS='-mfloat-abi=softfp -mfpu=vfp -DFLOAT_ARCH=-vfp-sflt'
74 elif test "x$ARM_FLOAT_TYPE" = xvfp-hflt; then
75 ARM_FLOAT_TYPE_FLAGS='-mfloat-abi=hard -mfpu=vfp -DFLOAT_ARCH=-vfp-hflt'
76 elif test "x$ARM_FLOAT_TYPE" = xsflt; then
77 ARM_FLOAT_TYPE_FLAGS='-msoft-float -mfpu=vfp'
78 fi
79 AC_MSG_CHECKING([for $ARM_FLOAT_TYPE floating point flags])
80 AC_MSG_RESULT([$ARM_FLOAT_TYPE_FLAGS])
81
82 AC_MSG_CHECKING([for arch type flags])
83 AC_MSG_RESULT([$ARM_ARCH_TYPE_FLAGS])
84
85 # Now set JDK_ARCH_ABI_PROP_NAME. This is equivalent to the last part of the
86 # autoconf target triplet.
87 [ JDK_ARCH_ABI_PROP_NAME=`$ECHO $OPENJDK_TARGET_AUTOCONF_NAME | $SED -e 's/.*-\([^-]*\)$/\1/'` ]
88 # Sanity check that it is a known ABI.
89 if test "x$JDK_ARCH_ABI_PROP_NAME" != xgnu && \
90 test "x$JDK_ARCH_ABI_PROP_NAME" != xgnueabi && \
91 test "x$JDK_ARCH_ABI_PROP_NAME" != xgnueabihf; then
92 AC_MSG_WARN([Unknown autoconf target triplet ABI: "$JDK_ARCH_ABI_PROP_NAME"])
93 fi
94 AC_MSG_CHECKING([for ABI property name])
95 AC_MSG_RESULT([$JDK_ARCH_ABI_PROP_NAME])
96 AC_SUBST(JDK_ARCH_ABI_PROP_NAME)
97
98 # Pass these on to the open part of configure as if they were set using
99 # --with-extra-c[xx]flags.
100 EXTRA_CFLAGS="$EXTRA_CFLAGS $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS"
101 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS"
102 # Get rid of annoying "note: the mangling of 'va_list' has changed in GCC 4.4"
103 # FIXME: This should not really be set using extra_cflags.
104 if test "x$OPENJDK_TARGET_CPU" = xarm; then
105 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wno-psabi"
106 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -Wno-psabi"
107 fi
108 # Also add JDK_ARCH_ABI_PROP_NAME define, but only to CFLAGS.
109 EXTRA_CFLAGS="$EXTRA_CFLAGS -DJDK_ARCH_ABI_PROP_NAME='\"\$(JDK_ARCH_ABI_PROP_NAME)\"'"
110 # And pass the architecture flags to the linker as well
111 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS"
112 fi
113
114 # When building with an abi profile, the name of that profile is appended on the
115 # bundle platform, which is used in bundle names.
116 if test "x$OPENJDK_TARGET_ABI_PROFILE" != x; then
117 OPENJDK_TARGET_BUNDLE_PLATFORM="$OPENJDK_TARGET_OS_BUNDLE-$OPENJDK_TARGET_ABI_PROFILE"
118 fi
119 ])
120
121 # Reset the global CFLAGS/LDFLAGS variables and initialize them with the
122 # corresponding configure arguments instead
123 AC_DEFUN_ONCE([FLAGS_SETUP_USER_SUPPLIED_FLAGS],
124 [
125 if test "x$CFLAGS" != "x${ADDED_CFLAGS}"; then
126 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags])
127 fi
128
129 if test "x$CXXFLAGS" != "x${ADDED_CXXFLAGS}"; then
130 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags])
131 fi
132
133 if test "x$LDFLAGS" != "x${ADDED_LDFLAGS}"; then
134 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags])
135 fi
136
137 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags],
138 [extra flags to be used when compiling jdk c-files])])
139
140 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags],
141 [extra flags to be used when compiling jdk c++-files])])
142
143 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags],
144 [extra flags to be used when linking jdk])])
145
146 EXTRA_CFLAGS="$with_extra_cflags"
147 EXTRA_CXXFLAGS="$with_extra_cxxflags"
148 EXTRA_LDFLAGS="$with_extra_ldflags"
149
150 AC_SUBST(EXTRA_CFLAGS)
151 AC_SUBST(EXTRA_CXXFLAGS)
152 AC_SUBST(EXTRA_LDFLAGS)
153
154 # The global CFLAGS and LDLAGS variables are used by configure tests and
155 # should include the extra parameters
156 CFLAGS="$EXTRA_CFLAGS"
157 CXXFLAGS="$EXTRA_CXXFLAGS"
158 LDFLAGS="$EXTRA_LDFLAGS"
159 CPPFLAGS=""
160 ])
161
162 # Setup the sysroot flags and add them to global CFLAGS and LDFLAGS so
163 # that configure can use them while detecting compilers.
164 # TOOLCHAIN_TYPE is available here.
165 # Param 1 - Optional prefix to all variables. (e.g BUILD_)
166 AC_DEFUN([FLAGS_SETUP_SYSROOT_FLAGS],
167 [
168 if test "x[$]$1SYSROOT" != "x"; then
169 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
170 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
171 # Solaris Studio does not have a concept of sysroot. Instead we must
172 # make sure the default include and lib dirs are appended to each
173 # compile and link command line. Must also add -I-xbuiltin to enable
174 # inlining of system functions and intrinsics.
175 $1SYSROOT_CFLAGS="-I-xbuiltin -I[$]$1SYSROOT/usr/include"
176 $1SYSROOT_LDFLAGS="-L[$]$1SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \
177 -L[$]$1SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR"
178 # If the devkit contains the ld linker, make sure we use it.
179 AC_PATH_PROG(SOLARIS_LD, ld, , $DEVKIT_TOOLCHAIN_PATH:$DEVKIT_EXTRA_PATH)
180 # Make sure this ld is runnable.
181 if test -f "$SOLARIS_LD"; then
182 if "$SOLARIS_LD" -V > /dev/null 2> /dev/null; then
183 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -Yl,$(dirname $SOLARIS_LD)"
184 else
185 AC_MSG_WARN([Could not run $SOLARIS_LD found in devkit, reverting to system ld])
186 fi
187 fi
188 fi
189 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
190 $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT"
191 $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT"
192 elif test "x$TOOLCHAIN_TYPE" = xclang; then
193 $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT"
194 $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT"
195 fi
196 # The global CFLAGS and LDFLAGS variables need these for configure to function
197 $1CFLAGS="[$]$1CFLAGS [$]$1SYSROOT_CFLAGS"
198 $1CPPFLAGS="[$]$1CPPFLAGS [$]$1SYSROOT_CFLAGS"
199 $1CXXFLAGS="[$]$1CXXFLAGS [$]$1SYSROOT_CFLAGS"
200 $1LDFLAGS="[$]$1LDFLAGS [$]$1SYSROOT_LDFLAGS"
201 fi
202
203 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
204 # We also need -iframework<path>/System/Library/Frameworks
205 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks"
206 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks"
207 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework
208 # set this here so it doesn't have to be peppered throughout the forest
209 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
210 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
211 fi
212
213 AC_SUBST($1SYSROOT_CFLAGS)
214 AC_SUBST($1SYSROOT_LDFLAGS)
215 ])
216
217 AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS],
218 [
219 # COMPILER_TARGET_BITS_FLAG : option for selecting 32- or 64-bit output
220 # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler
221 # COMPILER_BINDCMD_FILE_FLAG : option for specifying a file which saves the binder
222 # commands produced by the link step (currently AIX only)
223 if test "x$TOOLCHAIN_TYPE" = xxlc; then
224 COMPILER_TARGET_BITS_FLAG="-q"
225 COMPILER_COMMAND_FILE_FLAG="-f"
226 COMPILER_BINDCMD_FILE_FLAG="-bloadmap:"
227 else
228 COMPILER_TARGET_BITS_FLAG="-m"
229 COMPILER_COMMAND_FILE_FLAG="@"
230 COMPILER_BINDCMD_FILE_FLAG=""
231
232 # The solstudio linker does not support @-files.
233 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
234 COMPILER_COMMAND_FILE_FLAG=
235 fi
236
237 # Check if @file is supported by gcc
238 if test "x$TOOLCHAIN_TYPE" = xgcc; then
239 AC_MSG_CHECKING([if @file is supported by gcc])
240 # Extra emtpy "" to prevent ECHO from interpreting '--version' as argument
241 $ECHO "" "--version" > command.file
242 if $CXX @command.file 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then
243 AC_MSG_RESULT(yes)
244 COMPILER_COMMAND_FILE_FLAG="@"
245 else
246 AC_MSG_RESULT(no)
247 COMPILER_COMMAND_FILE_FLAG=
248 fi
249 $RM command.file
250 fi
251 fi
252 AC_SUBST(COMPILER_TARGET_BITS_FLAG)
253 AC_SUBST(COMPILER_COMMAND_FILE_FLAG)
254 AC_SUBST(COMPILER_BINDCMD_FILE_FLAG)
255
256 # FIXME: figure out if we should select AR flags depending on OS or toolchain.
257 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
258 ARFLAGS="-r"
259 elif test "x$OPENJDK_TARGET_OS" = xaix; then
260 ARFLAGS="-X64"
261 elif test "x$OPENJDK_TARGET_OS" = xwindows; then
262 # lib.exe is used as AR to create static libraries.
263 ARFLAGS="-nologo -NODEFAULTLIB:MSVCRT"
264 else
265 ARFLAGS=""
266 fi
267 AC_SUBST(ARFLAGS)
268
269 ## Setup strip.
270 # FIXME: should this really be per platform, or should it be per toolchain type?
271 # strip is not provided by clang or solstudio; so guessing platform makes most sense.
272 # FIXME: we should really only export STRIPFLAGS from here, not POST_STRIP_CMD.
273 if test "x$OPENJDK_TARGET_OS" = xlinux; then
274 STRIPFLAGS="-g"
275 elif test "x$OPENJDK_TARGET_OS" = xsolaris; then
276 STRIPFLAGS="-x"
277 elif test "x$OPENJDK_TARGET_OS" = xmacosx; then
278 STRIPFLAGS="-S"
279 elif test "x$OPENJDK_TARGET_OS" = xaix; then
280 STRIPFLAGS="-X32_64"
281 fi
282
283 AC_SUBST(STRIPFLAGS)
284
285 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
286 CC_OUT_OPTION=-Fo
287 EXE_OUT_OPTION=-out:
288 LD_OUT_OPTION=-out:
289 AR_OUT_OPTION=-out:
290 else
291 # The option used to specify the target .o,.a or .so file.
292 # When compiling, how to specify the to be created object file.
293 CC_OUT_OPTION='-o$(SPACE)'
294 # When linking, how to specify the to be created executable.
295 EXE_OUT_OPTION='-o$(SPACE)'
296 # When linking, how to specify the to be created dynamically linkable library.
297 LD_OUT_OPTION='-o$(SPACE)'
298 # When archiving, how to specify the to be create static archive for object files.
299 AR_OUT_OPTION='rcs$(SPACE)'
300 fi
301 AC_SUBST(CC_OUT_OPTION)
302 AC_SUBST(EXE_OUT_OPTION)
303 AC_SUBST(LD_OUT_OPTION)
304 AC_SUBST(AR_OUT_OPTION)
305
306 # On Windows, we need to set RC flags.
307 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
308 RC_FLAGS="-nologo -l0x409"
309 JVM_RCFLAGS="-nologo"
310 if test "x$DEBUG_LEVEL" = xrelease; then
311 RC_FLAGS="$RC_FLAGS -DNDEBUG"
312 JVM_RCFLAGS="$JVM_RCFLAGS -DNDEBUG"
313 fi
314
315 # The version variables used to create RC_FLAGS may be overridden
316 # in a custom configure script, or possibly the command line.
317 # Let those variables be expanded at make time in spec.gmk.
318 # The \$ are escaped to the shell, and the $(...) variables
319 # are evaluated by make.
320 RC_FLAGS="$RC_FLAGS \
321 -D\"JDK_VERSION_STRING=\$(VERSION_STRING)\" \
322 -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \
323 -D\"JDK_COMPONENT=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) binary\" \
324 -D\"JDK_VER=\$(VERSION_NUMBER)\" \
325 -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \
326 -D\"JDK_NAME=\$(PRODUCT_NAME) \$(JDK_RC_PLATFORM_NAME) \$(VERSION_FEATURE)\" \
327 -D\"JDK_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\""
328
329 JVM_RCFLAGS="$JVM_RCFLAGS \
330 -D\"HS_BUILD_ID=\$(VERSION_STRING)\" \
331 -D\"HS_COMPANY=\$(COMPANY_NAME)\" \
332 -D\"JDK_DOTVER=\$(VERSION_NUMBER_FOUR_POSITIONS)\" \
333 -D\"HS_COPYRIGHT=Copyright $COPYRIGHT_YEAR\" \
334 -D\"HS_NAME=\$(PRODUCT_NAME) \$(VERSION_SHORT)\" \
335 -D\"JDK_VER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\" \
336 -D\"HS_FNAME=jvm.dll\" \
337 -D\"HS_INTERNAL_NAME=jvm\""
338 fi
339 AC_SUBST(RC_FLAGS)
340 AC_SUBST(JVM_RCFLAGS)
341
342 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
343 # silence copyright notice and other headers.
344 COMMON_CCXXFLAGS="$COMMON_CCXXFLAGS -nologo"
345 fi
346 ])
347
348 AC_DEFUN([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
349 [
350 ###############################################################################
351 #
352 # How to compile shared libraries.
353 #
354
355 if test "x$TOOLCHAIN_TYPE" = xgcc; then
356 PICFLAG="-fPIC"
357 C_FLAG_REORDER=''
358 CXX_FLAG_REORDER=''
359
360 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
361 # Linking is different on MacOSX
362 if test "x$STATIC_BUILD" = xtrue; then
363 SHARED_LIBRARY_FLAGS ='-undefined dynamic_lookup'
364 else
365 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
366 JVM_CFLAGS="$JVM_CFLAGS $PICFLAG"
367 fi
368 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path$(or [$]1,/.)'
369 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
370 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1'
371 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1'
372 else
373 # Default works for linux, might work on other platforms as well.
374 SHARED_LIBRARY_FLAGS='-shared'
375 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1'
376 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
377 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
378 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
379 fi
380 elif test "x$TOOLCHAIN_TYPE" = xclang; then
381 C_FLAG_REORDER=''
382 CXX_FLAG_REORDER=''
383
384 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
385 # Linking is different on MacOSX
386 PICFLAG=''
387 SHARED_LIBRARY_FLAGS="-dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $PICFLAG"
388 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,@loader_path$(or [$]1,/.)'
389 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
390 SET_SHARED_LIBRARY_NAME='-Wl,-install_name,@rpath/[$]1'
391 SET_SHARED_LIBRARY_MAPFILE='-Wl,-exported_symbols_list,[$]1'
392
393 if test "x$STATIC_BUILD" = xfalse; then
394 JVM_CFLAGS="$JVM_CFLAGS -fPIC"
395 fi
396 else
397 # Default works for linux, might work on other platforms as well.
398 PICFLAG='-fPIC'
399 SHARED_LIBRARY_FLAGS='-shared'
400 SET_EXECUTABLE_ORIGIN='-Wl,-rpath,\$$ORIGIN[$]1'
401 SET_SHARED_LIBRARY_NAME='-Wl,-soname=[$]1'
402 SET_SHARED_LIBRARY_MAPFILE='-Wl,-version-script=[$]1'
403
404 # arm specific settings
405 if test "x$OPENJDK_TARGET_CPU" = "xarm"; then
406 # '-Wl,-z,origin' isn't used on arm.
407 SET_SHARED_LIBRARY_ORIGIN='-Wl,-rpath,\$$$$ORIGIN[$]1'
408 else
409 SET_SHARED_LIBRARY_ORIGIN="-Wl,-z,origin $SET_EXECUTABLE_ORIGIN"
410 fi
411
412 fi
413 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
414 if test "x$OPENJDK_TARGET_CPU" = xsparcv9; then
415 PICFLAG="-xcode=pic32"
416 else
417 PICFLAG="-KPIC"
418 fi
419 C_FLAG_REORDER='-xF'
420 CXX_FLAG_REORDER='-xF'
421 SHARED_LIBRARY_FLAGS="-G"
422 SET_EXECUTABLE_ORIGIN='-R\$$ORIGIN[$]1'
423 SET_SHARED_LIBRARY_ORIGIN="$SET_EXECUTABLE_ORIGIN"
424 SET_SHARED_LIBRARY_NAME='-h [$]1'
425 SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
426 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
427 # '-qpic' defaults to 'qpic=small'. This means that the compiler generates only
428 # one instruction for accessing the TOC. If the TOC grows larger than 64K, the linker
429 # will have to patch this single instruction with a call to some out-of-order code which
430 # does the load from the TOC. This is of course slow. But in that case we also would have
431 # to use '-bbigtoc' for linking anyway so we could also change the PICFLAG to 'qpic=large'.
432 # With 'qpic=large' the compiler will by default generate a two-instruction sequence which
433 # can be patched directly by the linker and does not require a jump to out-of-order code.
434 # Another alternative instead of using 'qpic=large -bbigtoc' may be to use '-qminimaltoc'
435 # instead. This creates a distinct TOC for every compilation unit (and thus requires two
436 # loads for accessing a global variable). But there are rumors that this may be seen as a
437 # 'performance feature' because of improved code locality of the symbols used in a
438 # compilation unit.
439 PICFLAG="-qpic"
440 JVM_CFLAGS="$JVM_CFLAGS $PICFLAG"
441 C_FLAG_REORDER=''
442 CXX_FLAG_REORDER=''
443 SHARED_LIBRARY_FLAGS="-qmkshrobj -bM:SRE -bnoentry"
444 SET_EXECUTABLE_ORIGIN=""
445 SET_SHARED_LIBRARY_ORIGIN=''
446 SET_SHARED_LIBRARY_NAME=''
447 SET_SHARED_LIBRARY_MAPFILE=''
448 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
449 PICFLAG=""
450 C_FLAG_REORDER=''
451 CXX_FLAG_REORDER=''
452 SHARED_LIBRARY_FLAGS="-dll"
453 SET_EXECUTABLE_ORIGIN=''
454 SET_SHARED_LIBRARY_ORIGIN=''
455 SET_SHARED_LIBRARY_NAME=''
456 SET_SHARED_LIBRARY_MAPFILE='-def:[$]1'
457 fi
458
459 AC_SUBST(C_FLAG_REORDER)
460 AC_SUBST(CXX_FLAG_REORDER)
461 AC_SUBST(SET_EXECUTABLE_ORIGIN)
462 AC_SUBST(SET_SHARED_LIBRARY_ORIGIN)
463 AC_SUBST(SET_SHARED_LIBRARY_NAME)
464 AC_SUBST(SET_SHARED_LIBRARY_MAPFILE)
465 AC_SUBST(SHARED_LIBRARY_FLAGS)
466
467 # The (cross) compiler is now configured, we can now test capabilities
468 # of the target platform.
469 ])
470
471 # Documentation on common flags used for solstudio in HIGHEST.
472 #
473 # WARNING: Use of OPTIMIZATION_LEVEL=HIGHEST in your Makefile needs to be
474 # done with care, there are some assumptions below that need to
475 # be understood about the use of pointers, and IEEE behavior.
476 #
477 # -fns: Use non-standard floating point mode (not IEEE 754)
478 # -fsimple: Do some simplification of floating point arithmetic (not IEEE 754)
479 # -fsingle: Use single precision floating point with 'float'
480 # -xalias_level=basic: Assume memory references via basic pointer types do not alias
481 # (Source with excessing pointer casting and data access with mixed
482 # pointer types are not recommended)
483 # -xbuiltin=%all: Use intrinsic or inline versions for math/std functions
484 # (If you expect perfect errno behavior, do not use this)
485 # -xdepend: Loop data dependency optimizations (need -xO3 or higher)
486 # -xrestrict: Pointer parameters to functions do not overlap
487 # (Similar to -xalias_level=basic usage, but less obvious sometimes.
488 # If you pass in multiple pointers to the same data, do not use this)
489 # -xlibmil: Inline some library routines
490 # (If you expect perfect errno behavior, do not use this)
491 # -xlibmopt: Use optimized math routines (CURRENTLY DISABLED)
492 # (If you expect perfect errno behavior, do not use this)
493 # Can cause undefined external on Solaris 8 X86 on __sincos, removing for now
494
495 # FIXME: this will never happen since sparc != sparcv9, ie 32 bit, which we don't build anymore.
496 # Bug?
497 #if test "x$OPENJDK_TARGET_CPU" = xsparc; then
498 # CFLAGS_JDK="${CFLAGS_JDK} -xmemalign=4s"
499 # CXXFLAGS_JDK="${CXXFLAGS_JDK} -xmemalign=4s"
500 #fi
501
502 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_OPTIMIZATION],
503 [
504
505 ###############################################################################
506 #
507 # Setup the opt flags for different compilers
508 # and different operating systems.
509 #
510
511 # FIXME: this was indirectly the old default, but just inherited.
512 # if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
513 # C_FLAG_DEPS="-MMD -MF"
514 # fi
515
516 # Generate make dependency files
517 if test "x$TOOLCHAIN_TYPE" = xgcc; then
518 C_FLAG_DEPS="-MMD -MF"
519 elif test "x$TOOLCHAIN_TYPE" = xclang; then
520 C_FLAG_DEPS="-MMD -MF"
521 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
522 C_FLAG_DEPS="-xMMD -xMF"
523 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
524 C_FLAG_DEPS="-qmakedep=gcc -MF"
525 fi
526 CXX_FLAG_DEPS="$C_FLAG_DEPS"
527 AC_SUBST(C_FLAG_DEPS)
528 AC_SUBST(CXX_FLAG_DEPS)
529
530 # Debug symbols
531 if test "x$TOOLCHAIN_TYPE" = xgcc; then
532 if test "x$OPENJDK_TARGET_CPU_BITS" = "x64" && test "x$DEBUG_LEVEL" = "xfastdebug"; then
533 # reduce from default "-g2" option to save space
534 CFLAGS_DEBUG_SYMBOLS="-g1"
535 CXXFLAGS_DEBUG_SYMBOLS="-g1"
536 else
537 CFLAGS_DEBUG_SYMBOLS="-g"
538 CXXFLAGS_DEBUG_SYMBOLS="-g"
539 fi
540 elif test "x$TOOLCHAIN_TYPE" = xclang; then
541 CFLAGS_DEBUG_SYMBOLS="-g"
542 CXXFLAGS_DEBUG_SYMBOLS="-g"
543 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
544 CFLAGS_DEBUG_SYMBOLS="-g -xs"
545 # -g0 enables debug symbols without disabling inlining.
546 CXXFLAGS_DEBUG_SYMBOLS="-g0 -xs"
547 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
548 CFLAGS_DEBUG_SYMBOLS="-g"
549 CXXFLAGS_DEBUG_SYMBOLS="-g"
550 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
551 CFLAGS_DEBUG_SYMBOLS="-Zi"
552 CXXFLAGS_DEBUG_SYMBOLS="-Zi"
553 fi
554 AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
555 AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
556
557 # Debug symbols for JVM_CFLAGS
558 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
559 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -xs"
560 if test "x$DEBUG_LEVEL" = xslowdebug; then
561 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g"
562 else
563 # -g0 does not disable inlining, which -g does.
564 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g0"
565 fi
566 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
567 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -Z7 -d2Zi+"
568 else
569 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS -g"
570 fi
571 AC_SUBST(JVM_CFLAGS_SYMBOLS)
572
573 # bounds, memory and behavior checking options
574 if test "x$TOOLCHAIN_TYPE" = xgcc; then
575 case $DEBUG_LEVEL in
576 release )
577 # no adjustment
578 ;;
579 fastdebug )
580 # no adjustment
581 ;;
582 slowdebug )
583 # FIXME: By adding this to C(XX)FLAGS_DEBUG_OPTIONS/JVM_CFLAGS_SYMBOLS it
584 # get's added conditionally on whether we produce debug symbols or not.
585 # This is most likely not really correct.
586
587 # Add runtime stack smashing and undefined behavior checks.
588 # Not all versions of gcc support -fstack-protector
589 STACK_PROTECTOR_CFLAG="-fstack-protector-all"
590 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$STACK_PROTECTOR_CFLAG -Werror], IF_FALSE: [STACK_PROTECTOR_CFLAG=""])
591
592 CFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
593 CXXFLAGS_DEBUG_OPTIONS="$STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
594 if test "x$STACK_PROTECTOR_CFLAG" != x; then
595 JVM_CFLAGS_SYMBOLS="$JVM_CFLAGS_SYMBOLS $STACK_PROTECTOR_CFLAG --param ssp-buffer-size=1"
596 fi
597 ;;
598 esac
599 fi
600
601 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
602 if test "x$DEBUG_LEVEL" != xrelease; then
603 if test "x$OPENJDK_TARGET_CPU" = xx86_64; then
604 JVM_CFLAGS="$JVM_CFLAGS -homeparams"
605 fi
606 fi
607 fi
608
609 # Optimization levels
610 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
611 CC_HIGHEST="$CC_HIGHEST -fns -fsimple -fsingle -xbuiltin=%all -xdepend -xrestrict -xlibmil"
612
613 if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86"; then
614 # FIXME: seems we always set -xregs=no%frameptr; put it elsewhere more global?
615 C_O_FLAG_HIGHEST_JVM="-xO4"
616 C_O_FLAG_HIGHEST="-xO4 -Wu,-O4~yz $CC_HIGHEST -xalias_level=basic -xregs=no%frameptr"
617 C_O_FLAG_HI="-xO4 -Wu,-O4~yz -xregs=no%frameptr"
618 C_O_FLAG_NORM="-xO2 -Wu,-O2~yz -xregs=no%frameptr"
619 C_O_FLAG_DEBUG="-xregs=no%frameptr"
620 C_O_FLAG_DEBUG_JVM=""
621 C_O_FLAG_NONE="-xregs=no%frameptr"
622 CXX_O_FLAG_HIGHEST_JVM="-xO4"
623 CXX_O_FLAG_HIGHEST="-xO4 -Qoption ube -O4~yz $CC_HIGHEST -xregs=no%frameptr"
624 CXX_O_FLAG_HI="-xO4 -Qoption ube -O4~yz -xregs=no%frameptr"
625 CXX_O_FLAG_NORM="-xO2 -Qoption ube -O2~yz -xregs=no%frameptr"
626 CXX_O_FLAG_DEBUG="-xregs=no%frameptr"
627 CXX_O_FLAG_DEBUG_JVM=""
628 CXX_O_FLAG_NONE="-xregs=no%frameptr"
629 if test "x$OPENJDK_TARGET_CPU_BITS" = "x32"; then
630 C_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST -xchip=pentium"
631 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_HIGHEST -xchip=pentium"
632 fi
633 elif test "x$OPENJDK_TARGET_CPU_ARCH" = "xsparc"; then
634 C_O_FLAG_HIGHEST_JVM="-xO4"
635 C_O_FLAG_HIGHEST="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0 $CC_HIGHEST -xalias_level=basic -xprefetch=auto,explicit -xchip=ultra"
636 C_O_FLAG_HI="-xO4 -Wc,-Qrm-s -Wc,-Qiselect-T0"
637 C_O_FLAG_NORM="-xO2 -Wc,-Qrm-s -Wc,-Qiselect-T0"
638 C_O_FLAG_DEBUG=""
639 C_O_FLAG_DEBUG_JVM=""
640 C_O_FLAG_NONE=""
641 CXX_O_FLAG_HIGHEST_JVM="-xO4"
642 CXX_O_FLAG_HIGHEST="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0 $CC_HIGHEST -xprefetch=auto,explicit -xchip=ultra"
643 CXX_O_FLAG_HI="-xO4 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
644 CXX_O_FLAG_NORM="-xO2 -Qoption cg -Qrm-s -Qoption cg -Qiselect-T0"
645 CXX_O_FLAG_DEBUG=""
646 CXX_O_FLAG_DEBUG_JVM=""
647 CXX_O_FLAG_NONE=""
648 fi
649 else
650 # The remaining toolchains share opt flags between CC and CXX;
651 # setup for C and duplicate afterwards.
652 if test "x$TOOLCHAIN_TYPE" = xgcc; then
653 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
654 # On MacOSX we optimize for size, something
655 # we should do for all platforms?
656 C_O_FLAG_HIGHEST_JVM="-Os"
657 C_O_FLAG_HIGHEST="-Os"
658 C_O_FLAG_HI="-Os"
659 C_O_FLAG_NORM="-Os"
660 C_O_FLAG_SIZE="-Os"
661 else
662 C_O_FLAG_HIGHEST_JVM="-O3"
663 C_O_FLAG_HIGHEST="-O3"
664 C_O_FLAG_HI="-O3"
665 C_O_FLAG_NORM="-O2"
666 C_O_FLAG_SIZE="-Os"
667 fi
668 C_O_FLAG_DEBUG="-O0"
669 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
670 C_O_FLAG_DEBUG_JVM=""
671 elif test "x$OPENJDK_TARGET_OS" = xlinux; then
672 C_O_FLAG_DEBUG_JVM="-O0"
673 fi
674 C_O_FLAG_NONE="-O0"
675 elif test "x$TOOLCHAIN_TYPE" = xclang; then
676 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
677 # On MacOSX we optimize for size, something
678 # we should do for all platforms?
679 C_O_FLAG_HIGHEST_JVM="-Os"
680 C_O_FLAG_HIGHEST="-Os"
681 C_O_FLAG_HI="-Os"
682 C_O_FLAG_NORM="-Os"
683 C_O_FLAG_SIZE="-Os"
684 else
685 C_O_FLAG_HIGHEST_JVM="-O3"
686 C_O_FLAG_HIGHEST="-O3"
687 C_O_FLAG_HI="-O3"
688 C_O_FLAG_NORM="-O2"
689 C_O_FLAG_SIZE="-Os"
690 fi
691 C_O_FLAG_DEBUG="-O0"
692 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
693 C_O_FLAG_DEBUG_JVM=""
694 elif test "x$OPENJDK_TARGET_OS" = xlinux; then
695 C_O_FLAG_DEBUG_JVM="-O0"
696 fi
697 C_O_FLAG_NONE="-O0"
698 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
699 C_O_FLAG_HIGHEST_JVM="-O3 -qhot=level=1 -qinline -qinlglue"
700 C_O_FLAG_HIGHEST="-O3 -qhot=level=1 -qinline -qinlglue"
701 C_O_FLAG_HI="-O3 -qinline -qinlglue"
702 C_O_FLAG_NORM="-O2"
703 C_O_FLAG_DEBUG="-qnoopt"
704 # FIXME: Value below not verified.
705 C_O_FLAG_DEBUG_JVM=""
706 C_O_FLAG_NONE="-qnoopt"
707 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
708 C_O_FLAG_HIGHEST_JVM="-O2 -Oy-"
709 C_O_FLAG_HIGHEST="-O2"
710 C_O_FLAG_HI="-O1"
711 C_O_FLAG_NORM="-O1"
712 C_O_FLAG_DEBUG="-Od"
713 C_O_FLAG_DEBUG_JVM=""
714 C_O_FLAG_NONE="-Od"
715 C_O_FLAG_SIZE="-Os"
716 fi
717 CXX_O_FLAG_HIGHEST_JVM="$C_O_FLAG_HIGHEST_JVM"
718 CXX_O_FLAG_HIGHEST="$C_O_FLAG_HIGHEST"
719 CXX_O_FLAG_HI="$C_O_FLAG_HI"
720 CXX_O_FLAG_NORM="$C_O_FLAG_NORM"
721 CXX_O_FLAG_DEBUG="$C_O_FLAG_DEBUG"
722 CXX_O_FLAG_DEBUG_JVM="$C_O_FLAG_DEBUG_JVM"
723 CXX_O_FLAG_NONE="$C_O_FLAG_NONE"
724 CXX_O_FLAG_SIZE="$C_O_FLAG_SIZE"
725 fi
726
727 # Adjust optimization flags according to debug level.
728 case $DEBUG_LEVEL in
729 release )
730 # no adjustment
731 ;;
732 fastdebug )
733 # Not quite so much optimization
734 C_O_FLAG_HI="$C_O_FLAG_NORM"
735 CXX_O_FLAG_HI="$CXX_O_FLAG_NORM"
736 ;;
737 slowdebug )
738 # Disable optimization
739 C_O_FLAG_HIGHEST_JVM="$C_O_FLAG_DEBUG_JVM"
740 C_O_FLAG_HIGHEST="$C_O_FLAG_DEBUG"
741 C_O_FLAG_HI="$C_O_FLAG_DEBUG"
742 C_O_FLAG_NORM="$C_O_FLAG_DEBUG"
743 C_O_FLAG_SIZE="$C_O_FLAG_DEBUG"
744 CXX_O_FLAG_HIGHEST_JVM="$CXX_O_FLAG_DEBUG_JVM"
745 CXX_O_FLAG_HIGHEST="$CXX_O_FLAG_DEBUG"
746 CXX_O_FLAG_HI="$CXX_O_FLAG_DEBUG"
747 CXX_O_FLAG_NORM="$CXX_O_FLAG_DEBUG"
748 CXX_O_FLAG_SIZE="$CXX_O_FLAG_DEBUG"
749 ;;
750 esac
751
752 AC_SUBST(C_O_FLAG_HIGHEST_JVM)
753 AC_SUBST(C_O_FLAG_HIGHEST)
754 AC_SUBST(C_O_FLAG_HI)
755 AC_SUBST(C_O_FLAG_NORM)
756 AC_SUBST(C_O_FLAG_DEBUG)
757 AC_SUBST(C_O_FLAG_NONE)
758 AC_SUBST(C_O_FLAG_SIZE)
759 AC_SUBST(CXX_O_FLAG_HIGHEST_JVM)
760 AC_SUBST(CXX_O_FLAG_HIGHEST)
761 AC_SUBST(CXX_O_FLAG_HI)
762 AC_SUBST(CXX_O_FLAG_NORM)
763 AC_SUBST(CXX_O_FLAG_DEBUG)
764 AC_SUBST(CXX_O_FLAG_NONE)
765 AC_SUBST(CXX_O_FLAG_SIZE)
766 ])
767
768
769 AC_DEFUN([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
770 [
771
772 FLAGS_SETUP_ABI_PROFILE
773
774 # Optional POSIX functionality needed by the JVM
775 #
776 # Check if clock_gettime is available and in which library. This indicates
777 # availability of CLOCK_MONOTONIC for hotspot. But we don't need to link, so
778 # don't let it update LIBS.
779 save_LIBS="$LIBS"
780 AC_SEARCH_LIBS(clock_gettime, rt, [HAS_CLOCK_GETTIME=true], [])
781 if test "x$LIBS" = "x-lrt "; then
782 CLOCK_GETTIME_IN_LIBRT=true
783 fi
784 LIBS="$save_LIBS"
785
786 FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK_HELPER([TARGET])
787 FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK_HELPER([BUILD], [OPENJDK_BUILD_])
788
789 # Tests are only ever compiled for TARGET
790 # Flags for compiling test libraries
791 CFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK $PICFLAG $CFLAGS_JDKLIB_EXTRA"
792 CXXFLAGS_TESTLIB="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK $PICFLAG $CXXFLAGS_JDKLIB_EXTRA"
793
794 # Flags for compiling test executables
795 CFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CFLAGS_JDK"
796 CXXFLAGS_TESTEXE="$COMMON_CCXXFLAGS_JDK $CXXFLAGS_JDK"
797
798 AC_SUBST(CFLAGS_TESTLIB)
799 AC_SUBST(CFLAGS_TESTEXE)
800 AC_SUBST(CXXFLAGS_TESTLIB)
801 AC_SUBST(CXXFLAGS_TESTEXE)
802
803 LDFLAGS_TESTLIB="$LDFLAGS_JDKLIB"
804 LDFLAGS_TESTEXE="$LDFLAGS_JDKEXE $JAVA_BASE_LDFLAGS"
805
806 AC_SUBST(LDFLAGS_TESTLIB)
807 AC_SUBST(LDFLAGS_TESTEXE)
808
809 ])
810
811 ################################################################################
812 # $1 - Either BUILD or TARGET to pick the correct OS/CPU variables to check
813 # conditionals against.
814 # $2 - Optional prefix for each variable defined.
815 AC_DEFUN([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK_HELPER],
816 [
817 # Special extras...
818 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
819 if test "x$OPENJDK_$1_CPU_ARCH" = "xsparc"; then
820 $2CFLAGS_JDKLIB_EXTRA="${$2CFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
821 $2CXXFLAGS_JDKLIB_EXTRA="${$2CXXFLAGS_JDKLIB_EXTRA} -xregs=no%appl"
822 fi
823 $2CFLAGS_JDKLIB_EXTRA="${$2CFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
824 $2CXXFLAGS_JDKLIB_EXTRA="${$2CXXFLAGS_JDKLIB_EXTRA} -errtags=yes -errfmt"
825 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
826 $2CFLAGS_JDK="${$2CFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt"
827 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} -qchars=signed -qfullpath -qsaveopt"
828 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
829 $2CXXSTD_CXXFLAG="-std=gnu++98"
830 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [[$]$2CXXSTD_CXXFLAG -Werror],
831 IF_FALSE: [$2CXXSTD_CXXFLAG=""])
832 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2CXXSTD_CXXFLAG}"
833 $2JVM_CFLAGS="${$2JVM_CFLAGS} ${$2CXXSTD_CXXFLAG}"
834 AC_SUBST($2CXXSTD_CXXFLAG)
835 fi
836 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
837 $2CFLAGS_JDK="${$2CFLAGS_JDK} -D__solaris__"
838 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} -D__solaris__"
839 fi
840
841 $2CFLAGS_JDK="${$2CFLAGS_JDK} ${$2EXTRA_CFLAGS}"
842 $2CXXFLAGS_JDK="${$2CXXFLAGS_JDK} ${$2EXTRA_CXXFLAGS}"
843 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} ${$2EXTRA_LDFLAGS}"
844
845 ###############################################################################
846 #
847 # Now setup the CFLAGS and LDFLAGS for the JDK build.
848 # Later we will also have CFLAGS and LDFLAGS for the hotspot subrepo build.
849 #
850
851 # Setup compiler/platform specific flags into
852 # $2CFLAGS_JDK - C Compiler flags
853 # $2CXXFLAGS_JDK - C++ Compiler flags
854 # $2COMMON_CCXXFLAGS_JDK - common to C and C++
855 if test "x$TOOLCHAIN_TYPE" = xgcc; then
856 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_GNU_SOURCE"
857 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_REENTRANT"
858 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -fcheck-new"
859 if test "x$OPENJDK_$1_CPU" = xx86; then
860 # Force compatibility with i586 on 32 bit intel platforms.
861 $2COMMON_CCXXFLAGS="${$2COMMON_CCXXFLAGS} -march=i586"
862 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -march=i586"
863 fi
864 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS [$]$2COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
865 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
866 case $OPENJDK_$1_CPU_ARCH in
867 arm )
868 # on arm we don't prevent gcc to omit frame pointer but do prevent strict aliasing
869 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing"
870 $2COMMON_CCXXFLAGS_JDK="${$2COMMON_CCXXFLAGS_JDK} -fsigned-char"
871 ;;
872 ppc )
873 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing
874 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing"
875 ;;
876 s390 )
877 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer -mbackchain -march=z10"
878 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing"
879 ;;
880 * )
881 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer"
882 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing"
883 ;;
884 esac
885 TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: 6, PREFIX: $2, IF_AT_LEAST: FLAGS_SETUP_GCC6_COMPILER_FLAGS($2))
886 elif test "x$TOOLCHAIN_TYPE" = xclang; then
887 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_GNU_SOURCE"
888
889 # Restrict the debug information created by Clang to avoid
890 # too big object files and speed the build up a little bit
891 # (see http://llvm.org/bugs/show_bug.cgi?id=7554)
892 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -flimit-debug-info"
893 if test "x$OPENJDK_$1_OS" = xlinux; then
894 if test "x$OPENJDK_$1_CPU" = xx86; then
895 # Force compatibility with i586 on 32 bit intel platforms.
896 $2COMMON_CCXXFLAGS="${$2COMMON_CCXXFLAGS} -march=i586"
897 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -march=i586"
898 fi
899 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wno-sometimes-uninitialized"
900 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS [$]$2COMMON_CCXXFLAGS_JDK -Wall -Wextra -Wno-unused -Wno-unused-parameter -Wformat=2 \
901 -pipe -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE"
902 case $OPENJDK_$1_CPU_ARCH in
903 ppc )
904 # on ppc we don't prevent gcc to omit frame pointer but do prevent strict aliasing
905 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing"
906 ;;
907 * )
908 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -fno-omit-frame-pointer"
909 $2CFLAGS_JDK="${$2CFLAGS_JDK} -fno-strict-aliasing"
910 ;;
911 esac
912 fi
913 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
914 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DSPARC_WORKS"
915 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS [$]$2COMMON_CCXXFLAGS_JDK -DTRACING -DMACRO_MEMSYS_OPS -DBREAKPTS"
916 if test "x$OPENJDK_$1_CPU_ARCH" = xx86; then
917 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -DcpuIntel -Di586 -D$OPENJDK_$1_CPU_LEGACY_LIB"
918 fi
919
920 $2CFLAGS_JDK="[$]$2CFLAGS_JDK -xc99=%none -xCC -errshort=tags -Xa -v -mt -W0,-noglobal"
921 $2CXXFLAGS_JDK="[$]$2CXXFLAGS_JDK -errtags=yes +w -mt -features=no%except -DCC_NOEX -norunpath -xnolib"
922 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
923 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_REENTRANT"
924 $2CFLAGS_JDK="[$]$2CFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
925 $2CXXFLAGS_JDK="[$]$2CXXFLAGS_JDK -D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
926 elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
927 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS [$]$2COMMON_CCXXFLAGS_JDK \
928 -MD -Zc:wchar_t- -W3 -wd4800 \
929 -DWIN32_LEAN_AND_MEAN \
930 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE \
931 -DWIN32 -DIAL"
932 if test "x$OPENJDK_$1_CPU" = xx86_64; then
933 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_AMD64_ -Damd64"
934 else
935 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_X86_ -Dx86"
936 fi
937 # If building with Visual Studio 2010, we can still use _STATIC_CPPLIB to
938 # avoid bundling msvcpNNN.dll. Doesn't work with newer versions of visual
939 # studio.
940 if test "x$TOOLCHAIN_VERSION" = "x2010"; then
941 STATIC_CPPLIB_FLAGS="-D_STATIC_CPPLIB -D_DISABLE_DEPRECATE_STATIC_CPPLIB"
942 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK $STATIC_CPPLIB_FLAGS"
943 $2JVM_CFLAGS="[$]$2JVM_CFLAGS $STATIC_CPPLIB_FLAGS"
944 fi
945 fi
946
947 ###############################################################################
948
949 # Adjust flags according to debug level.
950 case $DEBUG_LEVEL in
951 fastdebug | slowdebug )
952 $2CFLAGS_JDK="[$]$2CFLAGS_JDK $CFLAGS_DEBUG_SYMBOLS $CFLAGS_DEBUG_OPTIONS"
953 $2CXXFLAGS_JDK="[$]$2CXXFLAGS_JDK $CXXFLAGS_DEBUG_SYMBOLS $CXXFLAGS_DEBUG_OPTIONS"
954 ;;
955 release )
956 ;;
957 * )
958 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
959 ;;
960 esac
961
962 # Set some common defines. These works for all compilers, but assume
963 # -D is universally accepted.
964
965 # Setup endianness
966 if test "x$OPENJDK_$1_CPU_ENDIAN" = xlittle; then
967 # The macro _LITTLE_ENDIAN needs to be defined the same to avoid the
968 # Sun C compiler warning message: warning: macro redefined: _LITTLE_ENDIAN
969 # (The Solaris X86 system defines this in file /usr/include/sys/isa_defs.h).
970 # Note: -Dmacro is the same as #define macro 1
971 # -Dmacro= is the same as #define macro
972 if test "x$OPENJDK_$1_OS" = xsolaris; then
973 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN="
974 else
975 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_LITTLE_ENDIAN"
976 fi
977 else
978 # Same goes for _BIG_ENDIAN. Do we really need to set *ENDIAN on Solaris if they
979 # are defined in the system?
980 if test "x$OPENJDK_$1_OS" = xsolaris; then
981 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN="
982 else
983 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_BIG_ENDIAN"
984 fi
985 fi
986
987 # Always enable optional macros for VM.
988 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D__STDC_FORMAT_MACROS"
989 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D__STDC_LIMIT_MACROS"
990 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D__STDC_CONSTANT_MACROS"
991
992 # Setup target OS define. Use OS target name but in upper case.
993 OPENJDK_$1_OS_UPPERCASE=`$ECHO $OPENJDK_$1_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
994 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D$OPENJDK_$1_OS_UPPERCASE"
995
996 # Setup target CPU
997 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK \
998 $OPENJDK_$1_ADD_LP64 \
999 -DARCH='\"$OPENJDK_$1_CPU_LEGACY\"' -D$OPENJDK_$1_CPU_LEGACY"
1000
1001 # Setup debug/release defines
1002 if test "x$DEBUG_LEVEL" = xrelease; then
1003 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -DNDEBUG"
1004 if test "x$OPENJDK_$1_OS" = xsolaris; then
1005 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -DTRIMMED"
1006 fi
1007 else
1008 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -DDEBUG"
1009 fi
1010
1011 # Optional POSIX functionality needed by the VM
1012
1013 if test "x$HAS_CLOCK_GETTIME" = "xtrue"; then
1014 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DSUPPORTS_CLOCK_MONOTONIC"
1015 if test "x$CLOCK_GETTIME_IN_LIBRT" = "xtrue"; then
1016 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DNEEDS_LIBRT"
1017 fi
1018 fi
1019
1020
1021 # Set some additional per-OS defines.
1022 if test "x$OPENJDK_$1_OS" = xlinux; then
1023 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DLINUX"
1024 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -pipe $PICFLAG -fno-rtti -fno-exceptions \
1025 -fvisibility=hidden -fno-strict-aliasing -fno-omit-frame-pointer"
1026 elif test "x$OPENJDK_$1_OS" = xsolaris; then
1027 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DSOLARIS"
1028 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -template=no%extdef -features=no%split_init \
1029 -D_Crun_inline_placement -library=stlport4 $PICFLAG -mt -features=no%except"
1030 elif test "x$OPENJDK_$1_OS" = xmacosx; then
1031 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE -D_DARWIN_UNLIMITED_SELECT"
1032 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_ALLBSD_SOURCE"
1033 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_DARWIN_C_SOURCE -D_XOPEN_SOURCE"
1034 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -fno-rtti -fno-exceptions -fvisibility=hidden \
1035 -mno-omit-leaf-frame-pointer -mstack-alignment=16 -pipe -fno-strict-aliasing \
1036 -fno-omit-frame-pointer"
1037 elif test "x$OPENJDK_$1_OS" = xaix; then
1038 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DAIX"
1039 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -qtune=balanced \
1040 -qalias=noansi -qstrict -qtls=default -qlanglvl=c99vla \
1041 -qlanglvl=noredefmac -qnortti -qnoeh -qignerrno"
1042 # We need '-qminimaltoc' or '-qpic=large -bbigtoc' if the TOC overflows.
1043 # Hotspot now overflows its 64K TOC (currently only for debug),
1044 # so for debug we build with '-qpic=large -bbigtoc'.
1045 if test "x$DEBUG_LEVEL" = xslowdebug || test "x$DEBUG_LEVEL" = xfastdebug; then
1046 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -qpic=large"
1047 fi
1048 elif test "x$OPENJDK_$1_OS" = xbsd; then
1049 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK -D_ALLBSD_SOURCE"
1050 elif test "x$OPENJDK_$1_OS" = xwindows; then
1051 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_WINDOWS -DWIN32 -D_JNI_IMPLEMENTATION_"
1052 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -nologo -W3 -MD -MP"
1053 fi
1054
1055 # Set some additional per-CPU defines.
1056 if test "x$OPENJDK_$1_OS-$OPENJDK_$1_CPU" = xwindows-x86; then
1057 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -arch:IA32"
1058 elif test "x$OPENJDK_$1_OS-$OPENJDK_$1_CPU" = xsolaris-sparcv9; then
1059 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -xarch=sparc"
1060 elif test "x$OPENJDK_$1_CPU" = xppc64; then
1061 if test "x$OPENJDK_$1_OS" = xlinux; then
1062 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -minsert-sched-nops=regroup_exact -mno-multiple -mno-string"
1063 # fixes `relocation truncated to fit' error for gcc 4.1.
1064 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -mminimal-toc"
1065 # Use ppc64 instructions, but schedule for power5
1066 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -mcpu=powerpc64 -mtune=power5"
1067 elif test "x$OPENJDK_$1_OS" = xaix; then
1068 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -qarch=ppc64"
1069 fi
1070 elif test "x$OPENJDK_$1_CPU" = xppc64le; then
1071 if test "x$OPENJDK_$1_OS" = xlinux; then
1072 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -minsert-sched-nops=regroup_exact -mno-multiple -mno-string"
1073 # Little endian machine uses ELFv2 ABI.
1074 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DABI_ELFv2"
1075 # Use Power8, this is the first CPU to support PPC64 LE with ELFv2 ABI.
1076 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -mcpu=power8 -mtune=power8"
1077 fi
1078 elif test "x$OPENJDK_$1_CPU" = xs390x; then
1079 if test "x$OPENJDK_$1_OS" = xlinux; then
1080 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -mbackchain -march=z10"
1081 fi
1082 fi
1083
1084 if test "x$OPENJDK_$1_CPU_ENDIAN" = xlittle; then
1085 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -DVM_LITTLE_ENDIAN"
1086 fi
1087
1088 if test "x$OPENJDK_$1_CPU_BITS" = x64; then
1089 if test "x$OPENJDK_$1_OS" != xsolaris && test "x$OPENJDK_$1_OS" != xaix; then
1090 # Solaris does not have _LP64=1 in the old build.
1091 # xlc on AIX defines _LP64=1 by default and issues a warning if we redefine it.
1092 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -D_LP64=1"
1093 fi
1094 fi
1095
1096 # Set $2JVM_CFLAGS warning handling
1097 if test "x$OPENJDK_$1_OS" = xlinux; then
1098 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wpointer-arith -Wsign-compare -Wunused-function \
1099 -Wunused-value -Woverloaded-virtual"
1100
1101 if test "x$TOOLCHAIN_TYPE" = xgcc; then
1102 TOOLCHAIN_CHECK_COMPILER_VERSION(VERSION: [4.8], PREFIX: $2,
1103 IF_AT_LEAST: [
1104 # These flags either do not work or give spurious warnings prior to gcc 4.8.
1105 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wno-format-zero-length -Wtype-limits -Wuninitialized"
1106 ]
1107 )
1108 fi
1109 if ! HOTSPOT_CHECK_JVM_VARIANT(zero); then
1110 # Non-zero builds have stricter warnings
1111 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wreturn-type -Wundef -Wformat=2"
1112 else
1113 if test "x$TOOLCHAIN_TYPE" = xclang; then
1114 # Some versions of llvm do not like -Wundef
1115 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wno-undef"
1116 fi
1117 fi
1118 elif test "x$OPENJDK_$1_OS" = xmacosx; then
1119 $2JVM_CFLAGS="[$]$2JVM_CFLAGS -Wno-deprecated -Wpointer-arith \
1120 -Wsign-compare -Wundef -Wunused-function -Wformat=2"
1121 fi
1122
1123 # Additional macosx handling
1124 if test "x$OPENJDK_$1_OS" = xmacosx; then
1125 # MACOSX_VERSION_MIN specifies the lowest version of Macosx that the built
1126 # binaries should be compatible with, even if compiled on a newer version
1127 # of the OS. It currently has a hard coded value. Setting this also limits
1128 # exposure to API changes in header files. Bumping this is likely to
1129 # require code changes to build.
1130 MACOSX_VERSION_MIN=10.7.0
1131 AC_SUBST(MACOSX_VERSION_MIN)
1132
1133 # Setting --with-macosx-version-max=<version> makes it an error to build or
1134 # link to macosx APIs that are newer than the given OS version. The expected
1135 # format for <version> is either nn.n.n or nn.nn.nn. See /usr/include/AvailabilityMacros.h.
1136 AC_ARG_WITH([macosx-version-max], [AS_HELP_STRING([--with-macosx-version-max],
1137 [error on use of newer functionality. @<:@macosx@:>@])],
1138 [
1139 if echo "$with_macosx_version_max" | $GREP -q "^[[0-9]][[0-9]]\.[[0-9]]\.[[0-9]]\$"; then
1140 MACOSX_VERSION_MAX=$with_macosx_version_max
1141 elif echo "$with_macosx_version_max" | $GREP -q "^[[0-9]][[0-9]]\.[[0-9]][[0-9]]\.[[0-9]][[0-9]]\$"; then
1142 MACOSX_VERSION_MAX=$with_macosx_version_max
1143 elif test "x$with_macosx_version_max" = "xno"; then
1144 # Use build system default
1145 MACOSX_VERSION_MAX=
1146 else
1147 AC_MSG_ERROR([osx version format must be nn.n.n or nn.nn.nn])
1148 fi
1149 ],
1150 [MACOSX_VERSION_MAX=]
1151 )
1152 AC_SUBST(MACOSX_VERSION_MAX)
1153
1154 # Let the flags variables get resolved in make for easier override on make
1155 # command line. AvailabilityMacros.h versions have no dots, ex: 1070.
1156 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK \
1157 -DMAC_OS_X_VERSION_MIN_REQUIRED=\$(subst .,,\$(MACOSX_VERSION_MIN)) \
1158 -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
1159 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
1160 $2JVM_CFLAGS="[$]$2JVM_CFLAGS \
1161 -DMAC_OS_X_VERSION_MIN_REQUIRED=\$(subst .,,\$(MACOSX_VERSION_MIN)) \
1162 -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
1163 $2ARFLAGS="$2$ARFLAGS -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
1164
1165 if test -n "$MACOSX_VERSION_MAX"; then
1166 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK \
1167 -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MAX))"
1168 $2JVM_CFLAGS="[$]$2JVM_CFLAGS \
1169 -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MAX))"
1170 fi
1171 fi
1172
1173 # Setup some hard coded includes
1174 $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK \
1175 -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base \
1176 -I\$(SUPPORT_OUTPUTDIR)/modules_include/java.base/\$(OPENJDK_TARGET_OS_INCLUDE_SUBDIR) \
1177 -I${TOPDIR}/src/java.base/share/native/libjava \
1178 -I${TOPDIR}/src/java.base/$OPENJDK_$1_OS_TYPE/native/libjava \
1179 -I${TOPDIR}/src/hotspot/share/include \
1180 -I${TOPDIR}/src/hotspot/os/${HOTSPOT_$1_OS_TYPE}/include"
1181
1182 # The shared libraries are compiled using the picflag.
1183 $2CFLAGS_JDKLIB="[$]$2COMMON_CCXXFLAGS_JDK \
1184 [$]$2CFLAGS_JDK [$]$2EXTRA_CFLAGS_JDK $PICFLAG [$]$2CFLAGS_JDKLIB_EXTRA"
1185 $2CXXFLAGS_JDKLIB="[$]$2COMMON_CCXXFLAGS_JDK \
1186 [$]$2CXXFLAGS_JDK [$]$2EXTRA_CXXFLAGS_JDK $PICFLAG [$]$2CXXFLAGS_JDKLIB_EXTRA"
1187
1188 # Executable flags
1189 $2CFLAGS_JDKEXE="[$]$2COMMON_CCXXFLAGS_JDK [$]$2CFLAGS_JDK [$]$2EXTRA_CFLAGS_JDK"
1190 $2CXXFLAGS_JDKEXE="[$]$2COMMON_CCXXFLAGS_JDK [$]$2CXXFLAGS_JDK [$]$2EXTRA_CXXFLAGS_JDK"
1191
1192 AC_SUBST($2CFLAGS_JDKLIB)
1193 AC_SUBST($2CFLAGS_JDKEXE)
1194 AC_SUBST($2CXXFLAGS_JDKLIB)
1195 AC_SUBST($2CXXFLAGS_JDKEXE)
1196
1197 # Setup LDFLAGS et al.
1198 #
1199
1200 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
1201 LDFLAGS_MICROSOFT="-nologo -opt:ref"
1202 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LDFLAGS_MICROSOFT -incremental:no"
1203 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_MICROSOFT -opt:icf,8 -subsystem:windows -base:0x8000000 -ignore:4281"
1204 if test "x$OPENJDK_$1_CPU_BITS" = "x32"; then
1205 LDFLAGS_SAFESH="-safeseh"
1206 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LDFLAGS_SAFESH"
1207 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_SAFESH"
1208 # NOTE: Old build added -machine. Probably not needed.
1209 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -machine:I386"
1210 else
1211 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -machine:AMD64"
1212 fi
1213 elif test "x$TOOLCHAIN_TYPE" = xclang; then
1214 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -mno-omit-leaf-frame-pointer -mstack-alignment=16 -stdlib=libstdc++ -fPIC"
1215 if test "x$OPENJDK_$1_OS" = xmacosx; then
1216 # FIXME: We should really generalize SET_SHARED_LIBRARY_ORIGIN instead.
1217 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/.."
1218 fi
1219 elif test "x$TOOLCHAIN_TYPE" = xgcc; then
1220 # If this is a --hash-style=gnu system, use --hash-style=both, why?
1221 # We have previously set HAS_GNU_HASH if this is the case
1222 if test -n "$HAS_GNU_HASH"; then
1223 $2LDFLAGS_HASH_STYLE="-Wl,--hash-style=both"
1224 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} [$]$2LDFLAGS_HASH_STYLE"
1225 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS [$]$2LDFLAGS_HASH_STYLE"
1226 fi
1227 if test "x$OPENJDK_$1_OS" = xmacosx; then
1228 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/.."
1229 fi
1230 if test "x$OPENJDK_$1_OS" = xlinux; then
1231 # And since we now know that the linker is gnu, then add -z defs, to forbid
1232 # undefined symbols in object files.
1233 LDFLAGS_NO_UNDEF_SYM="-Wl,-z,defs"
1234 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} $LDFLAGS_NO_UNDEF_SYM"
1235 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_NO_UNDEF_SYM"
1236 LDFLAGS_NO_EXEC_STACK="-Wl,-z,noexecstack"
1237 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_NO_EXEC_STACK"
1238 if test "x$OPENJDK_$1_CPU" = xx86; then
1239 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -march=i586"
1240 fi
1241 case $DEBUG_LEVEL in
1242 release )
1243 # tell linker to optimize libraries.
1244 # Should this be supplied to the OSS linker as well?
1245 LDFLAGS_DEBUGLEVEL_release="-Wl,-O1"
1246 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} $LDFLAGS_DEBUGLEVEL_release"
1247 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_DEBUGLEVEL_release"
1248 if test "x$HAS_LINKER_RELRO" = "xtrue"; then
1249 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LINKER_RELRO_FLAG"
1250 fi
1251 ;;
1252 slowdebug )
1253 # Hotspot always let the linker optimize
1254 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -Wl,-O1"
1255 if test "x$HAS_LINKER_NOW" = "xtrue"; then
1256 # do relocations at load
1257 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LINKER_NOW_FLAG"
1258 $2LDFLAGS_CXX_JDK="[$]$2LDFLAGS_CXX_JDK $LINKER_NOW_FLAG"
1259 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LINKER_NOW_FLAG"
1260 fi
1261 if test "x$HAS_LINKER_RELRO" = "xtrue"; then
1262 # mark relocations read only
1263 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LINKER_RELRO_FLAG"
1264 $2LDFLAGS_CXX_JDK="[$]$2LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG"
1265 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LINKER_RELRO_FLAG"
1266 fi
1267 ;;
1268 fastdebug )
1269 # Hotspot always let the linker optimize
1270 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -Wl,-O1"
1271 if test "x$HAS_LINKER_RELRO" = "xtrue"; then
1272 # mark relocations read only
1273 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LINKER_RELRO_FLAG"
1274 $2LDFLAGS_CXX_JDK="[$]$2LDFLAGS_CXX_JDK $LINKER_RELRO_FLAG"
1275 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LINKER_RELRO_FLAG"
1276 fi
1277 ;;
1278 * )
1279 AC_MSG_ERROR([Unrecognized \$DEBUG_LEVEL: $DEBUG_LEVEL])
1280 ;;
1281 esac
1282 fi
1283 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then
1284 LDFLAGS_SOLSTUDIO="-Wl,-z,defs"
1285 $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK $LDFLAGS_SOLSTUDIO -ztext"
1286 LDFLAGS_CXX_SOLSTUDIO="-norunpath"
1287 $2LDFLAGS_CXX_JDK="[$]$2LDFLAGS_CXX_JDK $LDFLAGS_CXX_SOLSTUDIO -xnolib"
1288 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_SOLSTUDIO -library=%none -mt $LDFLAGS_CXX_SOLSTUDIO -z noversion"
1289 if test "x$OPENJDK_$1_CPU_ARCH" = "xsparc"; then
1290 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -xarch=sparc"
1291 fi
1292 elif test "x$TOOLCHAIN_TYPE" = xxlc; then
1293 LDFLAGS_XLC="-b64 -brtl -bnolibpath -bexpall -bernotok -btextpsize:64K -bdatapsize:64K -bstackpsize:64K"
1294 $2LDFLAGS_JDK="${$2LDFLAGS_JDK} $LDFLAGS_XLC"
1295 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS $LDFLAGS_XLC"
1296 # We need '-qminimaltoc' or '-qpic=large -bbigtoc' if the TOC overflows.
1297 # Hotspot now overflows its 64K TOC (currently only for debug),
1298 # so we build with '-qpic=large -bbigtoc'.
1299 if test "x$DEBUG_LEVEL" = xslowdebug || test "x$DEBUG_LEVEL" = xfastdebug; then
1300 $2JVM_LDFLAGS="[$]$2JVM_LDFLAGS -bbigtoc"
1301 fi
1302 fi
1303
1304 # Customize LDFLAGS for executables
1305
1306 $2LDFLAGS_JDKEXE="${$2LDFLAGS_JDK}"
1307
1308 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
1309 if test "x$OPENJDK_$1_CPU_BITS" = "x64"; then
1310 LDFLAGS_STACK_SIZE=1048576
1311 else
1312 LDFLAGS_STACK_SIZE=327680
1313 fi
1314 $2LDFLAGS_JDKEXE="${$2LDFLAGS_JDKEXE} /STACK:$LDFLAGS_STACK_SIZE"
1315 elif test "x$OPENJDK_$1_OS" = xlinux; then
1316 $2LDFLAGS_JDKEXE="[$]$2LDFLAGS_JDKEXE -Wl,--allow-shlib-undefined"
1317 fi
1318
1319 $2LDFLAGS_JDKEXE="${$2LDFLAGS_JDKEXE} ${$2EXTRA_LDFLAGS_JDK}"
1320
1321 # Customize LDFLAGS for libs
1322 $2LDFLAGS_JDKLIB="${$2LDFLAGS_JDK}"
1323
1324 $2LDFLAGS_JDKLIB="${$2LDFLAGS_JDKLIB} ${SHARED_LIBRARY_FLAGS}"
1325 $2LDFLAGS_JDKLIB="${$2LDFLAGS_JDKLIB} ${LDFLAGS_NO_EXEC_STACK}"
1326 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
1327 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \
1328 -libpath:${OUTPUTDIR}/support/modules_libs/java.base"
1329 $2JDKLIB_LIBS=""
1330 else
1331 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \
1332 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base"
1333
1334 if test "x$1" = "xTARGET"; then
1335 # On some platforms (mac) the linker warns about non existing -L dirs.
1336 # For any of the variants server, client or minimal, the dir matches the
1337 # variant name. The "main" variant should be used for linking. For the
1338 # rest, the dir is just server.
1339 if HOTSPOT_CHECK_JVM_VARIANT(server) || HOTSPOT_CHECK_JVM_VARIANT(client) \
1340 || HOTSPOT_CHECK_JVM_VARIANT(minimal); then
1341 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \
1342 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base/$JVM_VARIANT_MAIN"
1343 else
1344 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \
1345 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base/server"
1346 fi
1347 elif test "x$1" = "xBUILD"; then
1348 # When building a buildjdk, it's always only the server variant
1349 $2JAVA_BASE_LDFLAGS="${$2JAVA_BASE_LDFLAGS} \
1350 -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base/server"
1351 fi
1352
1353 $2JDKLIB_LIBS="-ljava -ljvm"
1354 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
1355 $2JDKLIB_LIBS="[$]$2JDKLIB_LIBS -lc"
1356 fi
1357
1358 fi
1359
1360 $2LDFLAGS_JDKLIB="${$2LDFLAGS_JDKLIB} ${$2JAVA_BASE_LDFLAGS}"
1361
1362 # Set $2JVM_LIBS (per os)
1363 if test "x$OPENJDK_$1_OS" = xlinux; then
1364 $2JVM_LIBS="[$]$2JVM_LIBS -lm -ldl -lpthread"
1365 elif test "x$OPENJDK_$1_OS" = xsolaris; then
1366 # FIXME: This hard-coded path is not really proper.
1367 if test "x$OPENJDK_$1_CPU" = xx86_64; then
1368 $2SOLARIS_LIBM_LIBS="/usr/lib/amd64/libm.so.1"
1369 elif test "x$OPENJDK_$1_CPU" = xsparcv9; then
1370 $2SOLARIS_LIBM_LIBS="/usr/lib/sparcv9/libm.so.1"
1371 fi
1372 $2JVM_LIBS="[$]$2JVM_LIBS -lsocket -lsched -ldl $SOLARIS_LIBM_LIBS -lCrun \
1373 -lthread -ldoor -lc -ldemangle -lnsl -lrt"
1374 elif test "x$OPENJDK_$1_OS" = xmacosx; then
1375 $2JVM_LIBS="[$]$2JVM_LIBS -lm"
1376 elif test "x$OPENJDK_$1_OS" = xaix; then
1377 $2JVM_LIBS="[$]$2JVM_LIBS -Wl,-lC_r -lm -ldl -lpthread"
1378 elif test "x$OPENJDK_$1_OS" = xbsd; then
1379 $2JVM_LIBS="[$]$2JVM_LIBS -lm"
1380 elif test "x$OPENJDK_$1_OS" = xwindows; then
1381 $2JVM_LIBS="[$]$2JVM_LIBS kernel32.lib user32.lib gdi32.lib winspool.lib \
1382 comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib \
1383 wsock32.lib winmm.lib version.lib psapi.lib"
1384 fi
1385
1386 # Set $2JVM_ASFLAGS
1387 if test "x$OPENJDK_$1_OS" = xlinux; then
1388 if test "x$OPENJDK_$1_CPU" = xx86; then
1389 $2JVM_ASFLAGS="[$]$2JVM_ASFLAGS -march=i586"
1390 fi
1391 elif test "x$OPENJDK_$1_OS" = xmacosx; then
1392 $2JVM_ASFLAGS="[$]$2JVM_ASFLAGS -x assembler-with-cpp -mno-omit-leaf-frame-pointer -mstack-alignment=16"
1393 fi
1394
1395 $2LDFLAGS_JDKLIB="${$2LDFLAGS_JDKLIB} ${$2EXTRA_LDFLAGS_JDK}"
1396
1397 AC_SUBST($2LDFLAGS_JDKLIB)
1398 AC_SUBST($2LDFLAGS_JDKEXE)
1399 AC_SUBST($2JDKLIB_LIBS)
1400 AC_SUBST($2JDKEXE_LIBS)
1401 AC_SUBST($2LDFLAGS_CXX_JDK)
1402 AC_SUBST($2LDFLAGS_HASH_STYLE)
1403 AC_SUBST($2LDFLAGS_NO_EXEC_STACK)
1404
1405 AC_SUBST($2JVM_CFLAGS)
1406 AC_SUBST($2JVM_LDFLAGS)
1407 AC_SUBST($2JVM_ASFLAGS)
1408 AC_SUBST($2JVM_LIBS)
1409
1410 ])
1411
1412 # FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE],
1413 # IF_FALSE: [RUN-IF-FALSE])
1414 # ------------------------------------------------------------
1415 # Check that the C compiler supports an argument
1416 BASIC_DEFUN_NAMED([FLAGS_C_COMPILER_CHECK_ARGUMENTS],
1417 [*ARGUMENT IF_TRUE IF_FALSE], [$@],
1418 [
1419 AC_MSG_CHECKING([if the C compiler supports "ARG_ARGUMENT"])
1420 supports=yes
1421
1422 saved_cflags="$CFLAGS"
1423 CFLAGS="$CFLAGS ARG_ARGUMENT"
1424 AC_LANG_PUSH([C])
1425 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
1426 [supports=no])
1427 AC_LANG_POP([C])
1428 CFLAGS="$saved_cflags"
1429
1430 AC_MSG_RESULT([$supports])
1431 if test "x$supports" = "xyes" ; then
1432 :
1433 ARG_IF_TRUE
1434 else
1435 :
1436 ARG_IF_FALSE
1437 fi
1438 ])
1439
1440 # FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE],
1441 # IF_FALSE: [RUN-IF-FALSE])
1442 # ------------------------------------------------------------
1443 # Check that the C++ compiler supports an argument
1444 BASIC_DEFUN_NAMED([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS],
1445 [*ARGUMENT IF_TRUE IF_FALSE], [$@],
1446 [
1447 AC_MSG_CHECKING([if the C++ compiler supports "ARG_ARGUMENT"])
1448 supports=yes
1449
1450 saved_cxxflags="$CXXFLAGS"
1451 CXXFLAGS="$CXXFLAG ARG_ARGUMENT"
1452 AC_LANG_PUSH([C++])
1453 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [],
1454 [supports=no])
1455 AC_LANG_POP([C++])
1456 CXXFLAGS="$saved_cxxflags"
1457
1458 AC_MSG_RESULT([$supports])
1459 if test "x$supports" = "xyes" ; then
1460 :
1461 ARG_IF_TRUE
1462 else
1463 :
1464 ARG_IF_FALSE
1465 fi
1466 ])
1467
1468 # FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE],
1469 # IF_FALSE: [RUN-IF-FALSE])
1470 # ------------------------------------------------------------
1471 # Check that the C and C++ compilers support an argument
1472 BASIC_DEFUN_NAMED([FLAGS_COMPILER_CHECK_ARGUMENTS],
1473 [*ARGUMENT IF_TRUE IF_FALSE], [$@],
1474 [
1475 FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT],
1476 IF_TRUE: [C_COMP_SUPPORTS="yes"],
1477 IF_FALSE: [C_COMP_SUPPORTS="no"])
1478 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT],
1479 IF_TRUE: [CXX_COMP_SUPPORTS="yes"],
1480 IF_FALSE: [CXX_COMP_SUPPORTS="no"])
1481
1482 AC_MSG_CHECKING([if both compilers support "ARG_ARGUMENT"])
1483 supports=no
1484 if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi
1485
1486 AC_MSG_RESULT([$supports])
1487 if test "x$supports" = "xyes" ; then
1488 :
1489 ARG_IF_TRUE
1490 else
1491 :
1492 ARG_IF_FALSE
1493 fi
1494 ])
1495
1496 # FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE],
1497 # IF_FALSE: [RUN-IF-FALSE])
1498 # ------------------------------------------------------------
1499 # Check that the linker support an argument
1500 BASIC_DEFUN_NAMED([FLAGS_LINKER_CHECK_ARGUMENTS],
1501 [*ARGUMENT IF_TRUE IF_FALSE], [$@],
1502 [
1503 AC_MSG_CHECKING([if linker supports "ARG_ARGUMENT"])
1504 supports=yes
1505
1506 saved_ldflags="$LDFLAGS"
1507 LDFLAGS="$LDFLAGS ARG_ARGUMENT"
1508 AC_LANG_PUSH([C])
1509 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],
1510 [], [supports=no])
1511 AC_LANG_POP([C])
1512 LDFLAGS="$saved_ldflags"
1513
1514 AC_MSG_RESULT([$supports])
1515 if test "x$supports" = "xyes" ; then
1516 :
1517 ARG_IF_TRUE
1518 else
1519 :
1520 ARG_IF_FALSE
1521 fi
1522 ])
1523
1524 AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_MISC],
1525 [
1526 # Check that the compiler supports -mX (or -qX on AIX) flags
1527 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does
1528 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}],
1529 IF_TRUE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true],
1530 IF_FALSE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false])
1531 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG)
1532
1533 AC_ARG_ENABLE([warnings-as-errors], [AS_HELP_STRING([--disable-warnings-as-errors],
1534 [do not consider native warnings to be an error @<:@enabled@:>@])])
1535
1536 AC_MSG_CHECKING([if native warnings are errors])
1537 if test "x$enable_warnings_as_errors" = "xyes"; then
1538 AC_MSG_RESULT([yes (explicitly set)])
1539 WARNINGS_AS_ERRORS=true
1540 elif test "x$enable_warnings_as_errors" = "xno"; then
1541 AC_MSG_RESULT([no])
1542 WARNINGS_AS_ERRORS=false
1543 elif test "x$enable_warnings_as_errors" = "x"; then
1544 AC_MSG_RESULT([yes (default)])
1545 WARNINGS_AS_ERRORS=true
1546 else
1547 AC_MSG_ERROR([--enable-warnings-as-errors accepts no argument])
1548 fi
1549
1550 AC_SUBST(WARNINGS_AS_ERRORS)
1551
1552 case "${TOOLCHAIN_TYPE}" in
1553 microsoft)
1554 DISABLE_WARNING_PREFIX="-wd"
1555 CFLAGS_WARNINGS_ARE_ERRORS="-WX"
1556 ;;
1557 solstudio)
1558 DISABLE_WARNING_PREFIX="-erroff="
1559 CFLAGS_WARNINGS_ARE_ERRORS="-errtags -errwarn=%all"
1560 ;;
1561 gcc)
1562 # Prior to gcc 4.4, a -Wno-X where X is unknown for that version of gcc will cause an error
1563 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist],
1564 IF_TRUE: [GCC_CAN_DISABLE_WARNINGS=true],
1565 IF_FALSE: [GCC_CAN_DISABLE_WARNINGS=false]
1566 )
1567 if test "x$GCC_CAN_DISABLE_WARNINGS" = "xtrue"; then
1568 DISABLE_WARNING_PREFIX="-Wno-"
1569 else
1570 DISABLE_WARNING_PREFIX=
1571 fi
1572 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
1573 # Repeate the check for the BUILD_CC and BUILD_CXX. Need to also reset
1574 # CFLAGS since any target specific flags will likely not work with the
1575 # build compiler
1576 CC_OLD="$CC"
1577 CXX_OLD="$CXX"
1578 CC="$BUILD_CC"
1579 CXX="$BUILD_CXX"
1580 CFLAGS_OLD="$CFLAGS"
1581 CFLAGS=""
1582 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [-Wno-this-is-a-warning-that-do-not-exist],
1583 IF_TRUE: [BUILD_CC_CAN_DISABLE_WARNINGS=true],
1584 IF_FALSE: [BUILD_CC_CAN_DISABLE_WARNINGS=false]
1585 )
1586 if test "x$BUILD_CC_CAN_DISABLE_WARNINGS" = "xtrue"; then
1587 BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
1588 else
1589 BUILD_CC_DISABLE_WARNING_PREFIX=
1590 fi
1591 CC="$CC_OLD"
1592 CXX="$CXX_OLD"
1593 CFLAGS="$CFLAGS_OLD"
1594 ;;
1595 clang)
1596 DISABLE_WARNING_PREFIX="-Wno-"
1597 CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
1598 ;;
1599 xlc)
1600 DISABLE_WARNING_PREFIX="-qsuppress="
1601 CFLAGS_WARNINGS_ARE_ERRORS="-qhalt=w"
1602 ;;
1603 esac
1604 AC_SUBST(DISABLE_WARNING_PREFIX)
1605 AC_SUBST(BUILD_CC_DISABLE_WARNING_PREFIX)
1606 AC_SUBST(CFLAGS_WARNINGS_ARE_ERRORS)
1607 ])
1608
1609 # FLAGS_SETUP_GCC6_COMPILER_FLAGS([PREFIX])
1610 # Arguments:
1611 # $1 - Optional prefix for each variable defined.
1612 AC_DEFUN([FLAGS_SETUP_GCC6_COMPILER_FLAGS],
1613 [
1614 # These flags are required for GCC 6 builds as undefined behaviour in OpenJDK code
1615 # runs afoul of the more aggressive versions of these optimisations.
1616 # Notably, value range propagation now assumes that the this pointer of C++
1617 # member functions is non-null.
1618 NO_DELETE_NULL_POINTER_CHECKS_CFLAG="-fno-delete-null-pointer-checks"
1619 dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation
1620 dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_DELETE_NULL_POINTER_CHECKS_CFLAG -Werror],
1621 dnl IF_FALSE: [NO_DELETE_NULL_POINTER_CHECKS_CFLAG=""])
1622 NO_LIFETIME_DSE_CFLAG="-fno-lifetime-dse"
1623 dnl Argument check is disabled until FLAGS_COMPILER_CHECK_ARGUMENTS handles cross-compilation
1624 dnl FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [$NO_LIFETIME_DSE_CFLAG -Werror],
1625 dnl IF_FALSE: [NO_LIFETIME_DSE_CFLAG=""])
1626 AC_MSG_NOTICE([GCC >= 6 detected; adding ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} and ${NO_LIFETIME_DSE_CFLAG}])
1627 $1CFLAGS_JDK="[$]$1CFLAGS_JDK ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
1628 $1JVM_CFLAGS="[$]$1JVM_CFLAGS ${NO_DELETE_NULL_POINTER_CHECKS_CFLAG} ${NO_LIFETIME_DSE_CFLAG}"
1629 ])