]>
Commit | Line | Data |
---|---|---|
7a938933 ILT |
1 | # configure.ac -- Go library configure script. |
2 | ||
3 | # Copyright 2009 The Go Authors. All rights reserved. | |
4 | # Use of this source code is governed by a BSD-style | |
5 | # license that can be found in the LICENSE file. | |
6 | ||
7 | # Process this file with autoreconf to produce configure. | |
8 | ||
9 | AC_PREREQ(2.64) | |
10 | AC_INIT(package-unused, version-unused,, libgo) | |
11 | AC_CONFIG_SRCDIR(Makefile.am) | |
12 | AC_CONFIG_HEADER(config.h) | |
13 | ||
a0488df4 | 14 | libtool_VERSION=11:0:0 |
7a938933 ILT |
15 | AC_SUBST(libtool_VERSION) |
16 | ||
17 | AM_ENABLE_MULTILIB(, ..) | |
18 | ||
19 | AC_CANONICAL_SYSTEM | |
20 | target_alias=${target_alias-$host_alias} | |
21 | ||
ee6440f8 | 22 | AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dist -Wall -Wno-portability]) |
7a938933 ILT |
23 | AH_TEMPLATE(PACKAGE, [Name of package]) |
24 | AH_TEMPLATE(VERSION, [Version number of package]) | |
25 | ||
26 | m4_rename([_AC_ARG_VAR_PRECIOUS],[glibgo_PRECIOUS]) | |
27 | m4_define([_AC_ARG_VAR_PRECIOUS],[]) | |
28 | AC_PROG_CC | |
29 | AC_PROG_GO | |
30 | m4_rename_force([glibgo_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) | |
31 | ||
32 | AC_SUBST(CFLAGS) | |
33 | ||
34 | AM_MAINTAINER_MODE | |
35 | ||
36 | AC_PROG_LD | |
37 | AC_PROG_RANLIB | |
38 | AC_CHECK_TOOL(OBJCOPY, objcopy, missing-objcopy) | |
39 | ||
40 | AC_LIBTOOL_DLOPEN | |
41 | AM_PROG_LIBTOOL | |
42 | AC_SUBST(enable_shared) | |
43 | AC_SUBST(enable_static) | |
44 | ||
d983a802 ILT |
45 | CC_FOR_BUILD=${CC_FOR_BUILD:-gcc} |
46 | AC_SUBST(CC_FOR_BUILD) | |
47 | ||
de27caac ILT |
48 | AC_PROG_AWK |
49 | ||
7a938933 ILT |
50 | WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual' |
51 | AC_SUBST(WARN_FLAGS) | |
52 | ||
0d4668c1 ILT |
53 | AC_ARG_ENABLE(werror, [AS_HELP_STRING([--enable-werror], |
54 | [turns on -Werror @<:@default=yes@:>@])]) | |
55 | if test "x$enable_werror" != "xno"; then | |
56 | WERROR="-Werror" | |
57 | fi | |
7a938933 ILT |
58 | AC_SUBST(WERROR) |
59 | ||
60 | glibgo_toolexecdir=no | |
61 | glibgo_toolexeclibdir=no | |
7a938933 ILT |
62 | |
63 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
64 | AC_ARG_ENABLE([version-specific-runtime-libs], | |
65 | AC_HELP_STRING([--enable-version-specific-runtime-libs], | |
66 | [Specify that runtime libraries should be installed in a compiler-specific directory]), | |
67 | [case "$enableval" in | |
68 | yes) version_specific_libs=yes ;; | |
69 | no) version_specific_libs=no ;; | |
70 | *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; | |
71 | esac], | |
72 | [version_specific_libs=no]) | |
73 | AC_MSG_RESULT($version_specific_libs) | |
74 | ||
75 | # Version-specific runtime libs processing. | |
76 | if test $version_specific_libs = yes; then | |
77 | glibgo_toolexecdir='${libdir}/gcc/${host_alias}' | |
78 | glibgo_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)' | |
79 | fi | |
80 | ||
81 | # Calculate glibgo_toolexecdir, glibgo_toolexeclibdir | |
82 | # Install a library built with a cross compiler in tooldir, not libdir. | |
317ea7c0 ILT |
83 | if test -n "$with_cross_host" && |
84 | test x"$with_cross_host" != x"no"; then | |
85 | nover_glibgo_toolexecdir='${exec_prefix}/${host_alias}' | |
86 | nover_glibgo_toolexeclibdir='${toolexecdir}/lib' | |
87 | else | |
88 | nover_glibgo_toolexecdir='${libdir}/gcc/${host_alias}' | |
89 | nover_glibgo_toolexeclibdir='${libdir}' | |
90 | fi | |
6c76a95d | 91 | multi_os_directory=`$GOC -print-multi-os-directory` |
317ea7c0 ILT |
92 | case $multi_os_directory in |
93 | .) ;; # Avoid trailing /. | |
94 | *) nover_glibgo_toolexeclibdir=${nover_glibgo_toolexeclibdir}/${multi_os_directory} ;; | |
95 | esac | |
96 | ||
7a938933 | 97 | if test x"$glibgo_toolexecdir" = x"no"; then |
317ea7c0 ILT |
98 | glibgo_toolexecdir="${nover_glibgo_toolexecdir}" |
99 | glibgo_toolexeclibdir="${nover_glibgo_toolexeclibdir}" | |
7a938933 ILT |
100 | fi |
101 | ||
7a938933 ILT |
102 | AC_SUBST(glibgo_toolexecdir) |
103 | AC_SUBST(glibgo_toolexeclibdir) | |
317ea7c0 | 104 | AC_SUBST(nover_glibgo_toolexeclibdir) |
7a938933 ILT |
105 | |
106 | # See if the user wants to configure without libffi. Some | |
107 | # architectures don't support it. FIXME: We should set a default | |
108 | # based on the host. | |
109 | AC_ARG_WITH(libffi, | |
110 | AS_HELP_STRING([--without-libffi], | |
111 | [don't use libffi]), | |
112 | [:], | |
113 | [with_libffi=${with_libffi_default-yes}]) | |
114 | ||
115 | LIBFFI= | |
116 | LIBFFIINCS= | |
117 | if test "$with_libffi" != no; then | |
118 | AC_DEFINE(USE_LIBFFI, 1, [Define if we're to use libffi.]) | |
119 | LIBFFI=../libffi/libffi_convenience.la | |
120 | LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I../libffi/include' | |
121 | fi | |
122 | AC_SUBST(LIBFFI) | |
123 | AC_SUBST(LIBFFIINCS) | |
5302cd02 | 124 | AM_CONDITIONAL(USE_LIBFFI, test "$with_liffi" != "no") |
7a938933 | 125 | |
9a85ed03 ILT |
126 | # See if the user wants to configure without libatomic. This is useful if we are |
127 | # on an architecture for which libgo does not need an atomic support library and | |
128 | # libatomic does not support our C compiler. | |
129 | AC_ARG_WITH(libatomic, | |
130 | AS_HELP_STRING([--without-libatomic], | |
131 | [don't use libatomic]), | |
132 | [:], | |
133 | [with_libatomic=${with_libatomic_default-yes}]) | |
134 | ||
135 | LIBATOMIC= | |
136 | if test "$with_libatomic" != no; then | |
137 | LIBATOMIC=../libatomic/libatomic_convenience.la | |
138 | fi | |
139 | AC_SUBST(LIBATOMIC) | |
140 | ||
18c70075 ILT |
141 | # Used to tell GNU make to include a file without telling automake to |
142 | # include it. | |
143 | go_include="-include" | |
144 | AC_SUBST(go_include) | |
145 | ||
a8464243 ILT |
146 | # All known GOOS values. This is the union of all operating systems |
147 | # supported by the gofrontend and all operating systems supported by | |
148 | # the gc toolchain. | |
149 | ALLGOOS="android darwin dragonfly freebsd irix linux netbsd openbsd plan9 rtems solaris windows" | |
150 | ||
7a938933 ILT |
151 | is_darwin=no |
152 | is_freebsd=no | |
654d2ec0 | 153 | is_irix=no |
7a938933 | 154 | is_linux=no |
1efa38d1 | 155 | is_netbsd=no |
4ccad563 | 156 | is_openbsd=no |
f038dae6 | 157 | is_dragonfly=no |
7a938933 | 158 | is_rtems=no |
f2ee78b8 | 159 | is_solaris=no |
c3b5b97b | 160 | GOOS=unknown |
7a938933 | 161 | case ${host} in |
f2ee78b8 ILT |
162 | *-*-darwin*) is_darwin=yes; GOOS=darwin ;; |
163 | *-*-freebsd*) is_freebsd=yes; GOOS=freebsd ;; | |
654d2ec0 | 164 | *-*-irix6*) is_irix=yes; GOOS=irix ;; |
f2ee78b8 | 165 | *-*-linux*) is_linux=yes; GOOS=linux ;; |
df4aa89a | 166 | *-*-netbsd*) is_netbsd=yes; GOOS=netbsd ;; |
4ccad563 | 167 | *-*-openbsd*) is_openbsd=yes; GOOS=openbsd ;; |
f038dae6 | 168 | *-*-dragonfly*) is_dragonfly=yes; GOOS=dragonfly ;; |
f2ee78b8 ILT |
169 | *-*-rtems*) is_rtems=yes; GOOS=rtems ;; |
170 | *-*-solaris2*) is_solaris=yes; GOOS=solaris ;; | |
7a938933 ILT |
171 | esac |
172 | AM_CONDITIONAL(LIBGO_IS_DARWIN, test $is_darwin = yes) | |
173 | AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = yes) | |
654d2ec0 | 174 | AM_CONDITIONAL(LIBGO_IS_IRIX, test $is_irix = yes) |
7a938933 | 175 | AM_CONDITIONAL(LIBGO_IS_LINUX, test $is_linux = yes) |
df4aa89a | 176 | AM_CONDITIONAL(LIBGO_IS_NETBSD, test $is_netbsd = yes) |
4ccad563 | 177 | AM_CONDITIONAL(LIBGO_IS_OPENBSD, test $is_openbsd = yes) |
824393bd | 178 | AM_CONDITIONAL(LIBGO_IS_DRAGONFLY, test $is_dragonfly = yes) |
7a938933 | 179 | AM_CONDITIONAL(LIBGO_IS_RTEMS, test $is_rtems = yes) |
f2ee78b8 | 180 | AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes) |
22b955cc | 181 | AM_CONDITIONAL(LIBGO_IS_BSD, test $is_darwin = yes -o $is_dragonfly = yes -o $is_freebsd = yes -o $is_netbsd = yes -o $is_openbsd = yes) |
c3b5b97b | 182 | AC_SUBST(GOOS) |
a8464243 | 183 | AC_SUBST(ALLGOOS) |
7a938933 | 184 | |
7134cf28 ILT |
185 | dnl Test whether we need to use DejaGNU or whether we can use the |
186 | dnl simpler gotest approach. We can only use gotest for a native | |
187 | dnl build. | |
188 | USE_DEJAGNU=no | |
189 | case ${host} in | |
190 | *-*-rtems*) USE_DEJAGNU=yes ;; | |
553752e1 | 191 | ${build}) ;; |
7134cf28 ILT |
192 | *) USE_DEJAGNU=yes ;; |
193 | esac | |
194 | AC_SUBST(USE_DEJAGNU) | |
195 | ||
a8464243 ILT |
196 | # All known GOARCH values. This is the union of all architectures |
197 | # supported by the gofrontend and all architectures supported by the | |
198 | # gc toolchain. | |
199 | # N.B. Keep in sync with gcc/testsuite/go.test/go-test.exp (go-set-goarch). | |
453060a9 | 200 | ALLGOARCH="386 alpha amd64 amd64p32 arm armbe arm64 arm64be ia64 m68k mipso32 mipsn32 mipso64 mipsn64 mips mipsle mips64 mips64le mips64p32 mips64p32le ppc ppc64 ppc64le s390 s390x sparc sparc64" |
a8464243 ILT |
201 | |
202 | # All known GOARCH_FAMILY values. | |
203 | ALLGOARCHFAMILY="I386 ALPHA AMD64 ARM ARM64 IA64 M68K MIPS MIPS64 PPC PPC64 S390 S390X SPARC SPARC64" | |
204 | ||
c3b5b97b | 205 | GOARCH=unknown |
a8464243 ILT |
206 | GOARCH_FAMILY=unknown |
207 | GOARCH_BIGENDIAN=0 | |
208 | GOARCH_CACHELINESIZE=64 | |
209 | GOARCH_PHYSPAGESIZE=4096 | |
210 | GOARCH_PCQUANTUM=1 | |
211 | GOARCH_INT64ALIGN=8 | |
212 | GOARCH_HUGEPAGESIZE=0 | |
213 | GOARCH_MINFRAMESIZE=0 | |
7a938933 | 214 | case ${host} in |
e59b9171 | 215 | alpha*-*-*) |
e59b9171 | 216 | GOARCH=alpha |
a8464243 ILT |
217 | GOARCH_FAMILY=ALPHA |
218 | GOARCH_PHYSPAGESIZE=8192 | |
219 | GOARCH_PCQUANTUM=4 | |
e59b9171 | 220 | ;; |
71d0d50a | 221 | aarch64-*-*) |
71d0d50a | 222 | GOARCH=arm64 |
a8464243 ILT |
223 | GOARCH_FAMILY=ARM64 |
224 | GOARCH_CACHELINESIZE=32 | |
225 | GOARCH_PHYSPAGESIZE=65536 | |
f6c7d678 | 226 | GOARCH_PCQUANTUM=4 |
a8464243 | 227 | GOARCH_MINFRAMESIZE=8 |
71d0d50a | 228 | ;; |
ca11cc98 | 229 | arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*) |
ca11cc98 | 230 | GOARCH=arm |
a8464243 ILT |
231 | GOARCH_FAMILY=ARM |
232 | GOARCH_CACHELINESIZE=32 | |
233 | GOARCH_PCQUANTUM=4 | |
a8464243 | 234 | GOARCH_MINFRAMESIZE=4 |
ca11cc98 | 235 | ;; |
7a938933 | 236 | changequote(,)dnl |
c3b5b97b | 237 | i[34567]86-*-* | x86_64-*-*) |
7a938933 | 238 | changequote([,])dnl |
4a299bf4 | 239 | AC_COMPILE_IFELSE([ |
c3b5b97b ILT |
240 | #ifdef __x86_64__ |
241 | #error 64-bit | |
242 | #endif], | |
a8464243 ILT |
243 | [GOARCH=386 |
244 | GOARCH_FAMILY=I386 | |
245 | GOARCH_INT64ALIGN=4 | |
246 | GOARCH_HUGEPAGESIZE="1 << 21" | |
247 | ], | |
248 | [GOARCH=amd64 | |
249 | GOARCH_FAMILY=AMD64 | |
250 | GOARCH_HUGEPAGESIZE="1 << 21" | |
251 | ]) | |
7a938933 | 252 | ;; |
4f8e688a | 253 | ia64-*-*) |
4f8e688a | 254 | GOARCH=ia64 |
a8464243 ILT |
255 | GOARCH_FAMILY=IA64 |
256 | GOARCH_CACHELINESIZE=16384 | |
307dde6f | 257 | GOARCH_PHYSPAGESIZE=65536 |
4f8e688a | 258 | ;; |
ca11cc98 | 259 | m68k*-*-*) |
ca11cc98 | 260 | GOARCH=m68k |
a8464243 ILT |
261 | GOARCH_FAMILY=M68K |
262 | GOARCH_BIGENDIAN=1 | |
263 | GOARCH_CACHELINESIZE=16 | |
264 | GOARCH_PCQUANTUM=4 | |
0f366729 | 265 | GOARCH_INT64ALIGN=2 |
ca11cc98 ILT |
266 | ;; |
267 | mips*-*-*) | |
4a299bf4 | 268 | AC_COMPILE_IFELSE([ |
85a09210 ILT |
269 | #if _MIPS_SIM != _ABIO32 |
270 | #error not o32 | |
ca11cc98 | 271 | #endif], |
85a09210 ILT |
272 | [mips_abi="o32"], |
273 | [AC_COMPILE_IFELSE([ | |
274 | #if _MIPS_SIM != _ABIN32 | |
275 | #error not n32 | |
276 | #endif], | |
277 | [mips_abi="n32"], | |
278 | [AC_COMPILE_IFELSE([ | |
279 | #if _MIPS_SIM != _ABI64 | |
280 | #error not n64 | |
281 | #endif], | |
282 | [mips_abi="n64"], | |
283 | [AC_COMPILE_IFELSE([ | |
284 | #if _MIPS_SIM != _ABIO64 | |
285 | #error not o64 | |
286 | #endif], | |
287 | [mips_abi="o64"], | |
288 | [AC_MSG_ERROR([unknown MIPS ABI]) | |
289 | [mips_abi="n32"]])])])]) | |
290 | case "$mips_abi" in | |
291 | "o32") GOARCH=mipso32 ;; | |
292 | "n32") GOARCH=mipsn32 ;; | |
293 | "n64") GOARCH=mipsn64 ;; | |
294 | "o64") GOARCH=mipso64 ;; | |
295 | esac | |
a8464243 ILT |
296 | case "$mips_abi" in |
297 | "o32" | "n32") | |
298 | GOARCH_FAMILY=MIPS | |
a8464243 ILT |
299 | GOARCH_MINFRAMESIZE=4 |
300 | ;; | |
301 | "n64" | "o64") | |
302 | GOARCH_FAMILY=MIPS64 | |
303 | GOARCH_MINFRAMESIZE=8 | |
304 | ;; | |
305 | esac | |
306 | case "${host}" in | |
307 | mips*el) | |
308 | ;; | |
309 | *) | |
310 | GOARCH_BIGENDIAN=1 | |
311 | ;; | |
312 | esac | |
313 | GOARCH_CACHELINESIZE=32 | |
314 | GOARCH_PHYSPAGESIZE=16384 | |
315 | GOARCH_PCQUANTUM=4 | |
ca11cc98 ILT |
316 | ;; |
317 | rs6000*-*-* | powerpc*-*-*) | |
4a299bf4 | 318 | AC_COMPILE_IFELSE([ |
ca11cc98 ILT |
319 | #ifdef _ARCH_PPC64 |
320 | #error 64-bit | |
321 | #endif], | |
a8464243 ILT |
322 | [GOARCH=ppc |
323 | GOARCH_FAMILY=PPC | |
324 | GOARCH_BIGENDIAN=1 | |
a8464243 ILT |
325 | ], |
326 | [ | |
327 | GOARCH_FAMILY=PPC64 | |
328 | AC_COMPILE_IFELSE([ | |
6f7ccafa ILT |
329 | #if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__) |
330 | #error 64be | |
331 | #endif], | |
a8464243 ILT |
332 | [GOARCH=ppc64le |
333 | ], | |
334 | [GOARCH=ppc64 | |
335 | GOARCH_BIGENDIAN=1 | |
336 | ])]) | |
337 | GOARCH_PHYSPAGESIZE=65536 | |
338 | GOARCH_PCQUANTUM=4 | |
339 | GOARCH_MINFRAMESIZE=32 | |
7a938933 | 340 | ;; |
1fec5f52 ILT |
341 | s390*-*-*) |
342 | AC_COMPILE_IFELSE([ | |
343 | #if defined(__s390x__) | |
344 | #error 64-bit | |
345 | #endif], | |
a8464243 ILT |
346 | [GOARCH=s390 |
347 | GOARCH_FAMILY=S390 | |
a8464243 ILT |
348 | GOARCH_MINFRAMESIZE=4 |
349 | ], [GOARCH=s390x | |
350 | GOARCH_FAMILY=S390X | |
351 | GOARCH_MINFRAMESIZE=8 | |
352 | ]) | |
353 | GOARCH_BIGENDIAN=1 | |
354 | GOARCH_CACHELINESIZE=256 | |
355 | GOARCH_PCQUANTUM=2 | |
1fec5f52 | 356 | ;; |
f2ee78b8 | 357 | sparc*-*-*) |
4a299bf4 | 358 | AC_COMPILE_IFELSE([ |
f2ee78b8 ILT |
359 | #if defined(__sparcv9) || defined(__arch64__) |
360 | #error 64-bit | |
361 | #endif], | |
a8464243 ILT |
362 | [GOARCH=sparc |
363 | GOARCH_FAMILY=SPARC | |
a8464243 ILT |
364 | ], |
365 | [GOARCH=sparc64 | |
366 | GOARCH_FAMILY=SPARC64 | |
367 | ]) | |
368 | GOARCH_BIGENDIAN=1 | |
369 | GOARCH_PHYSPAGESIZE=8192 | |
370 | GOARCH_PCQUANTUM=4 | |
f2ee78b8 | 371 | ;; |
7a938933 | 372 | esac |
c3b5b97b | 373 | AC_SUBST(GOARCH) |
a8464243 ILT |
374 | AC_SUBST(GOARCH_FAMILY) |
375 | AC_SUBST(GOARCH_BIGENDIAN) | |
376 | AC_SUBST(GOARCH_CACHELINESIZE) | |
377 | AC_SUBST(GOARCH_PHYSPAGESIZE) | |
378 | AC_SUBST(GOARCH_PCQUANTUM) | |
379 | AC_SUBST(GOARCH_INT64ALIGN) | |
380 | AC_SUBST(GOARCH_HUGEPAGESIZE) | |
381 | AC_SUBST(GOARCH_MINFRAMESIZE) | |
382 | AC_SUBST(ALLGOARCH) | |
383 | AC_SUBST(ALLGOARCHFAMILY) | |
7a938933 | 384 | |
ca11cc98 | 385 | dnl Some files are only present when needed for specific architectures. |
de27caac ILT |
386 | GO_LIBCALL_OS_FILE= |
387 | GO_LIBCALL_OS_ARCH_FILE= | |
388 | GO_SYSCALL_OS_FILE= | |
389 | GO_SYSCALL_OS_ARCH_FILE= | |
204b9fc2 ILT |
390 | if test -f "${srcdir}/go/syscall/libcall_${GOOS}.go"; then |
391 | GO_LIBCALL_OS_FILE="go/syscall/libcall_${GOOS}.go" | |
de27caac | 392 | fi |
204b9fc2 ILT |
393 | if test -f "${srcdir}/go/syscall/libcall_${GOOS}_${GOARCH}.go"; then |
394 | GO_LIBCALL_OS_ARCH_FILE="go/syscall/libcall_${GOOS}_${GOARCH}.go" | |
de27caac | 395 | fi |
204b9fc2 ILT |
396 | if test -f "${srcdir}/go/syscall/syscall_${GOOS}.go"; then |
397 | GO_SYSCALL_OS_FILE="go/syscall/syscall_${GOOS}.go" | |
de27caac | 398 | fi |
204b9fc2 ILT |
399 | if test -f "${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go"; then |
400 | GO_SYSCALL_OS_ARCH_FILE="go/syscall/syscall_${GOOS}_${GOARCH}.go" | |
ca11cc98 | 401 | fi |
de27caac ILT |
402 | AC_SUBST(GO_LIBCALL_OS_FILE) |
403 | AC_SUBST(GO_LIBCALL_OS_ARCH_FILE) | |
404 | AC_SUBST(GO_SYSCALL_OS_FILE) | |
405 | AC_SUBST(GO_SYSCALL_OS_ARCH_FILE) | |
ca11cc98 | 406 | |
d48be5df ILT |
407 | dnl Special flags used to generate sysinfo.go. |
408 | OSCFLAGS="-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" | |
90630d19 | 409 | case "$target" in |
9f3b1e6c ILT |
410 | mips-sgi-irix6.5*) |
411 | # IRIX 6 needs _XOPEN_SOURCE=500 for the XPG5 version of struct | |
412 | # msghdr in <sys/socket.h>. | |
d48be5df | 413 | OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500" |
9f3b1e6c | 414 | ;; |
90630d19 ILT |
415 | *-*-solaris2.1[[01]]) |
416 | # Solaris 10+ needs this so struct msghdr gets the msg_control | |
bbe847a1 | 417 | # etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as |
90630d19 | 418 | # above doesn't work with C99. |
bbe847a1 | 419 | OSCFLAGS="$OSCFLAGS -std=gnu99 -D_XOPEN_SOURCE=600 -D__EXTENSIONS__" |
90630d19 ILT |
420 | ;; |
421 | esac | |
422 | AC_SUBST(OSCFLAGS) | |
423 | ||
08934aed ILT |
424 | dnl Check if assembler supports disabling hardware capability support. |
425 | GCC_CHECK_ASSEMBLER_HWCAP | |
c3c54e0f | 426 | |
7a938933 ILT |
427 | dnl Use -fsplit-stack when compiling C code if available. |
428 | AC_CACHE_CHECK([whether -fsplit-stack is supported], | |
f2ee78b8 | 429 | [libgo_cv_c_split_stack_supported], |
7a938933 ILT |
430 | [CFLAGS_hold=$CFLAGS |
431 | CFLAGS="$CFLAGS -fsplit-stack" | |
432 | AC_COMPILE_IFELSE([[int i;]], | |
f2ee78b8 ILT |
433 | [libgo_cv_c_split_stack_supported=yes], |
434 | [libgo_cv_c_split_stack_supported=no]) | |
7a938933 | 435 | CFLAGS=$CFLAGS_hold]) |
c33c18cd ILT |
436 | |
437 | dnl Make sure the linker permits -fsplit-stack. Old versions of gold will | |
438 | dnl reject split-stack code calling non-split-stack code on targets | |
439 | dnl they don't support. | |
440 | AC_CACHE_CHECK([whether linker supports split/non-split linked together], | |
441 | [libgo_cv_c_linker_split_non_split], | |
442 | [cat > conftest1.c << EOF | |
443 | extern void f(); | |
444 | int main() { f(); return 0; } | |
445 | EOF | |
446 | cat > conftest2.c << EOF | |
447 | void f() {} | |
448 | EOF | |
207f844e ILT |
449 | $CC -c -fsplit-stack $CFLAGS $CPPFLAGS conftest1.c >/dev/null 2>&1 |
450 | $CC -c $CFLAGS $CPPFLAGS conftest2.c > /dev/null 2>&1 | |
451 | if $CC -o conftest conftest1.$ac_objext conftest2.$ac_objext > /dev/null 2>&1; then | |
c33c18cd ILT |
452 | libgo_cv_c_linker_split_non_split=yes |
453 | else | |
454 | libgo_cv_c_linker_split_non_split=no | |
455 | fi | |
456 | rm -f conftest1.* conftest2.* conftest]) | |
457 | ||
458 | if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes; then | |
7a938933 ILT |
459 | SPLIT_STACK=-fsplit-stack |
460 | AC_DEFINE(USING_SPLIT_STACK, 1, | |
461 | [Define if the compiler supports -fsplit-stack]) | |
462 | else | |
463 | SPLIT_STACK= | |
464 | fi | |
465 | AC_SUBST(SPLIT_STACK) | |
466 | AM_CONDITIONAL(USING_SPLIT_STACK, | |
c33c18cd | 467 | test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes) |
7a938933 | 468 | |
a2bf11d1 ILT |
469 | dnl If the compiler supports split-stack but the linker does not, then |
470 | dnl we need to explicitly disable split-stack for Go. | |
471 | if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = no; then | |
472 | GO_SPLIT_STACK=-fno-split-stack | |
473 | else | |
474 | GO_SPLIT_STACK= | |
475 | fi | |
476 | AC_SUBST(GO_SPLIT_STACK) | |
477 | ||
7a938933 ILT |
478 | dnl Check whether the linker does stack munging when calling from |
479 | dnl split-stack into non-split-stack code. We check this by looking | |
480 | dnl at the --help output. FIXME: This is only half right: it's | |
481 | dnl possible for the linker to support this for some targets but not | |
482 | dnl others. | |
c33c18cd ILT |
483 | dnl This is slightly different from the above check, which is whether |
484 | dnl the linker permits the call at all. | |
7a938933 | 485 | AC_CACHE_CHECK([whether linker supports split stack], |
f2ee78b8 | 486 | [libgo_cv_c_linker_supports_split_stack], |
f56c5dd1 ILT |
487 | [libgo_cv_c_linker_supports_split_stack=no |
488 | if $GOC -Wl,--help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then | |
f2ee78b8 | 489 | libgo_cv_c_linker_supports_split_stack=yes |
f56c5dd1 | 490 | fi]) |
f2ee78b8 | 491 | if test "$libgo_cv_c_linker_supports_split_stack" = yes; then |
7a938933 ILT |
492 | AC_DEFINE(LINKER_SUPPORTS_SPLIT_STACK, 1, |
493 | [Define if the linker support split stack adjustments]) | |
494 | fi | |
495 | ||
4c46b5f0 ILT |
496 | AC_CACHE_CHECK([whether compiler is llgo], |
497 | [libgo_cv_c_goc_is_llgo], | |
498 | [libgo_cv_c_goc_is_llgo=no | |
499 | if $GOC -dumpversion 2>/dev/null | grep llgo >/dev/null 2>&1; then | |
500 | libgo_cv_c_goc_is_llgo=yes | |
501 | fi]) | |
502 | AM_CONDITIONAL(GOC_IS_LLGO, test "$libgo_cv_c_goc_is_llgo" = yes) | |
503 | ||
505b439a ILT |
504 | dnl Test for the -lm library. |
505 | MATH_LIBS= | |
506 | AC_CHECK_LIB([m], [sqrt], MATH_LIBS=-lm) | |
507 | AC_SUBST(MATH_LIBS) | |
508 | ||
f2ee78b8 ILT |
509 | dnl Test for -lsocket and -lnsl. Copied from libjava/configure.ac. |
510 | AC_CACHE_CHECK([for socket libraries], libgo_cv_lib_sockets, | |
511 | [libgo_cv_lib_sockets= | |
512 | libgo_check_both=no | |
513 | AC_CHECK_FUNC(connect, libgo_check_socket=no, libgo_check_socket=yes) | |
514 | if test "$libgo_check_socket" = "yes"; then | |
515 | unset ac_cv_func_connect | |
516 | AC_CHECK_LIB(socket, main, libgo_cv_lib_sockets="-lsocket", | |
517 | libgo_check_both=yes) | |
518 | fi | |
519 | if test "$libgo_check_both" = "yes"; then | |
520 | libgo_old_libs=$LIBS | |
521 | LIBS="$LIBS -lsocket -lnsl" | |
522 | unset ac_cv_func_accept | |
523 | AC_CHECK_FUNC(accept, | |
524 | [libgo_check_nsl=no | |
525 | libgo_cv_lib_sockets="-lsocket -lnsl"]) | |
526 | unset ac_cv_func_accept | |
527 | LIBS=$libgo_old_libs | |
528 | fi | |
529 | unset ac_cv_func_gethostbyname | |
530 | libgo_old_libs="$LIBS" | |
531 | AC_CHECK_FUNC(gethostbyname, , | |
532 | [AC_CHECK_LIB(nsl, main, | |
533 | [libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lnsl"])]) | |
534 | unset ac_cv_func_gethostbyname | |
88cf4de8 ILT |
535 | AC_CHECK_FUNC(sendfile, , |
536 | [AC_CHECK_LIB(sendfile, main, | |
537 | [libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lsendfile"])]) | |
f2ee78b8 ILT |
538 | LIBS=$libgo_old_libs |
539 | ]) | |
540 | NET_LIBS="$libgo_cv_lib_sockets" | |
541 | AC_SUBST(NET_LIBS) | |
542 | ||
6c94a9fa ILT |
543 | dnl Test whether the compiler supports the -pthread option. |
544 | AC_CACHE_CHECK([whether -pthread is supported], | |
f2ee78b8 | 545 | [libgo_cv_lib_pthread], |
6c94a9fa ILT |
546 | [CFLAGS_hold=$CFLAGS |
547 | CFLAGS="$CFLAGS -pthread" | |
548 | AC_COMPILE_IFELSE([[int i;]], | |
f2ee78b8 ILT |
549 | [libgo_cv_lib_pthread=yes], |
550 | [libgo_cv_lib_pthread=no]) | |
6c94a9fa ILT |
551 | CFLAGS=$CFLAGS_hold]) |
552 | PTHREAD_CFLAGS= | |
f2ee78b8 | 553 | if test "$libgo_cv_lib_pthread" = yes; then |
6c94a9fa ILT |
554 | PTHREAD_CFLAGS=-pthread |
555 | fi | |
556 | AC_SUBST(PTHREAD_CFLAGS) | |
557 | ||
558 | dnl Test for the -lpthread library. | |
559 | PTHREAD_LIBS= | |
560 | AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS=-lpthread) | |
561 | AC_SUBST(PTHREAD_LIBS) | |
562 | ||
bbbe8b33 | 563 | dnl Test if -lrt is required for sched_yield or nanosleep or clock_gettime. |
ed4ebabc | 564 | AC_SEARCH_LIBS([sched_yield], [rt]) |
ae135907 | 565 | AC_SEARCH_LIBS([nanosleep], [rt]) |
bbbe8b33 | 566 | AC_SEARCH_LIBS([clock_gettime], [rt]) |
ed4ebabc | 567 | |
7a938933 ILT |
568 | AC_C_BIGENDIAN |
569 | ||
570 | GCC_CHECK_UNWIND_GETIPINFO | |
571 | ||
812ba636 | 572 | AC_CHECK_HEADERS(port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/reboot.h netinet/icmp6.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h) |
adb0401d | 573 | |
1410c222 | 574 | AC_CHECK_HEADERS([linux/filter.h linux/if_addr.h linux/if_ether.h linux/if_tun.h linux/netlink.h linux/rtnetlink.h], [], [], |
adb0401d ILT |
575 | [#ifdef HAVE_SYS_SOCKET_H |
576 | #include <sys/socket.h> | |
577 | #endif | |
578 | ]) | |
579 | ||
2aeaf0fb ILT |
580 | AC_CACHE_CHECK([whether <ustat.h> can be used], |
581 | [libgo_cv_c_ustat_h], | |
dbe1e4a5 ILT |
582 | [CFLAGS_hold=$CFLAGS |
583 | CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE $OSCFLAGS" | |
2aeaf0fb ILT |
584 | AC_COMPILE_IFELSE( |
585 | [AC_LANG_SOURCE([ | |
586 | #include <sys/types.h> | |
587 | #ifdef HAVE_LINUX_FILTER_H | |
588 | #include <linux/filter.h> | |
589 | #endif | |
590 | #include <ustat.h> | |
dbe1e4a5 ILT |
591 | ])], [libgo_cv_c_ustat_h=yes], [libgo_cv_c_ustat_h=no]) |
592 | CFLAGS=$CFLAGS_hold]) | |
2aeaf0fb ILT |
593 | if test $libgo_cv_c_ustat_h = yes; then |
594 | AC_DEFINE(HAVE_USTAT_H, 1, | |
595 | [Define to 1 if you have the <ustat.h> header file and it works.]) | |
596 | fi | |
597 | ||
7a938933 | 598 | AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes) |
8955c80a | 599 | |
f8d9fa9e | 600 | AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv unsetenv dl_iterate_phdr) |
8955c80a | 601 | AM_CONDITIONAL(HAVE_STRERROR_R, test "$ac_cv_func_strerror_r" = yes) |
0b3189e7 | 602 | AM_CONDITIONAL(HAVE_WAIT4, test "$ac_cv_func_wait4" = yes) |
7a938933 | 603 | |
6b05fadd | 604 | AC_CHECK_FUNCS(accept4 dup3 epoll_create1 faccessat fallocate fchmodat fchownat futimesat getxattr inotify_add_watch inotify_init inotify_init1 inotify_rm_watch listxattr mkdirat mknodat open64 openat pipe2 removexattr renameat setxattr sync_file_range splice tee unlinkat unshare utimensat) |
5d46bf05 | 605 | AC_TYPE_OFF_T |
e02ed81e ILT |
606 | AC_CHECK_TYPES([loff_t]) |
607 | ||
324612b3 ILT |
608 | LIBS_hold="$LIBS" |
609 | LIBS="$LIBS -lm" | |
610 | AC_CHECK_FUNCS(cosl expl logl sinl tanl acosl asinl atanl atan2l expm1l ldexpl log10l log1pl) | |
611 | LIBS="$LIBS_hold" | |
612 | ||
08ee945e ILT |
613 | CFLAGS_hold="$CFLAGS" |
614 | CFLAGS="$CFLAGS $PTHREAD_CFLAGS" | |
615 | LIBS_hold="$LIBS" | |
616 | LIBS="$LIBS $PTHREAD_LIBS" | |
617 | AC_CHECK_FUNCS(sem_timedwait) | |
618 | CFLAGS="$CFLAGS_hold" | |
619 | LIBS="$LIBS_hold" | |
620 | ||
d2b480bc ILT |
621 | LIBS_hold="$LIBS" |
622 | LIBS="$LIBS $MATH_LIBS" | |
623 | AC_CHECK_FUNCS(matherr) | |
624 | LIBS="$LIBS_hold" | |
625 | ||
a7c48c8e ILT |
626 | AC_CACHE_CHECK([for __sync_bool_compare_and_swap_4], |
627 | [libgo_cv_func___sync_bool_compare_and_swap_4], | |
628 | [AC_LINK_IFELSE([ | |
629 | typedef unsigned int uint32 __attribute__ ((mode (SI))); | |
630 | uint32 i; | |
631 | int main() { return __sync_bool_compare_and_swap (&i, 0, 1); } | |
632 | ], | |
633 | [libgo_cv_func___sync_bool_compare_and_swap_4=yes], | |
634 | [libgo_cv_func___sync_bool_compare_and_swap_4=no])]) | |
635 | if test "$libgo_cv_func___sync_bool_compare_and_swap_4" = "yes"; then | |
636 | AC_DEFINE(HAVE_SYNC_BOOL_COMPARE_AND_SWAP_4, 1, | |
637 | [Define to 1 if the compiler provides the __sync_bool_compare_and_swap function for uint32]) | |
638 | fi | |
639 | ||
12e3c396 ILT |
640 | AC_CACHE_CHECK([for __sync_bool_compare_and_swap_8], |
641 | [libgo_cv_func___sync_bool_compare_and_swap_8], | |
642 | [AC_LINK_IFELSE([ | |
643 | typedef unsigned int uint64 __attribute__ ((mode (DI))); | |
644 | uint64 i; | |
645 | int main() { return __sync_bool_compare_and_swap (&i, 0, 1); } | |
646 | ], | |
647 | [libgo_cv_func___sync_bool_compare_and_swap_8=yes], | |
648 | [libgo_cv_func___sync_bool_compare_and_swap_8=no])]) | |
649 | if test "$libgo_cv_func___sync_bool_compare_and_swap_8" = "yes"; then | |
650 | AC_DEFINE(HAVE_SYNC_BOOL_COMPARE_AND_SWAP_8, 1, | |
651 | [Define to 1 if the compiler provides the __sync_bool_compare_and_swap function for uint64]) | |
652 | fi | |
653 | ||
084996f1 ILT |
654 | AC_CACHE_CHECK([for __sync_fetch_and_add_4], |
655 | [libgo_cv_func___sync_fetch_and_add_4], | |
656 | [AC_LINK_IFELSE([ | |
657 | typedef unsigned int uint32 __attribute__ ((mode (SI))); | |
658 | uint32 i; | |
659 | int main() { return __sync_fetch_and_add (&i, 1); } | |
660 | ], | |
661 | [libgo_cv_func___sync_fetch_and_add_4=yes], | |
662 | [libgo_cv_func___sync_fetch_and_add_4=no])]) | |
663 | if test "$libgo_cv_func___sync_fetch_and_add_4" = "yes"; then | |
664 | AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD_4, 1, | |
665 | [Define to 1 if the compiler provides the __sync_fetch_and_add function for uint32]) | |
666 | fi | |
667 | ||
12e3c396 ILT |
668 | AC_CACHE_CHECK([for __sync_add_and_fetch_8], |
669 | [libgo_cv_func___sync_add_and_fetch_8], | |
670 | [AC_LINK_IFELSE([ | |
671 | typedef unsigned int uint64 __attribute__ ((mode (DI))); | |
672 | uint64 i; | |
673 | int main() { return __sync_add_and_fetch (&i, 1); } | |
674 | ], | |
675 | [libgo_cv_func___sync_add_and_fetch_8=yes], | |
676 | [libgo_cv_func___sync_add_and_fetch_8=no])]) | |
677 | if test "$libgo_cv_func___sync_add_and_fetch_8" = "yes"; then | |
678 | AC_DEFINE(HAVE_SYNC_ADD_AND_FETCH_8, 1, | |
679 | [Define to 1 if the compiler provides the __sync_add_and_fetch function for uint64]) | |
680 | fi | |
681 | ||
7a938933 ILT |
682 | dnl For x86 we want to use the -minline-all-stringops option to avoid |
683 | dnl forcing a stack split when calling memcpy and friends. | |
684 | AC_CACHE_CHECK([whether compiler supports -minline-all-stringops], | |
f2ee78b8 | 685 | [libgo_cv_c_stringops], |
7a938933 ILT |
686 | [CFLAGS_hold=$CFLAGS |
687 | CFLAGS="$CFLAGS -minline-all-stringops" | |
688 | AC_COMPILE_IFELSE([int i;], | |
f2ee78b8 ILT |
689 | [libgo_cv_c_stringops=yes], |
690 | [libgo_cv_c_stringops=no]) | |
7a938933 ILT |
691 | CFLAGS=$CFLAGS_hold]) |
692 | STRINGOPS_FLAG= | |
f2ee78b8 | 693 | if test "$libgo_cv_c_stringops" = yes; then |
7a938933 ILT |
694 | STRINGOPS_FLAG=-minline-all-stringops |
695 | fi | |
696 | AC_SUBST(STRINGOPS_FLAG) | |
697 | ||
9d465faf ILT |
698 | dnl For x86 we want to compile the math library with -mfancy-math-387 |
699 | dnl -funsafe-math-optimizations so that we can use the builtin | |
700 | dnl instructions directly. | |
701 | AC_CACHE_CHECK([whether compiler supports -mfancy-math-387], | |
702 | [libgo_cv_c_fancymath], | |
703 | [CFLAGS_hold=$CFLAGS | |
704 | CFLAGS="$CFLAGS -mfancy-math-387" | |
705 | AC_COMPILE_IFELSE([int i;], | |
706 | [libgo_cv_c_fancymath=yes], | |
707 | [libgo_cv_c_fancymath=no]) | |
708 | CFLAGS=$CFLAGS_hold]) | |
709 | MATH_FLAG= | |
710 | if test "$libgo_cv_c_fancymath" = yes; then | |
711 | MATH_FLAG="-mfancy-math-387 -funsafe-math-optimizations" | |
33a9145b ILT |
712 | else |
713 | MATH_FLAG="-ffp-contract=off" | |
9d465faf ILT |
714 | fi |
715 | AC_SUBST(MATH_FLAG) | |
716 | ||
7a938933 ILT |
717 | CFLAGS_hold=$CFLAGS |
718 | CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE" | |
e02ed81e | 719 | AC_CHECK_TYPES([off64_t]) |
7a938933 ILT |
720 | CFLAGS=$CFLAGS_hold |
721 | ||
207c35fa ILT |
722 | dnl Work out the size of the epoll_events struct on GNU/Linux. |
723 | AC_CACHE_CHECK([epoll_event size], | |
724 | [libgo_cv_c_epoll_event_size], | |
725 | [AC_COMPUTE_INT(libgo_cv_c_epoll_event_size, | |
726 | [sizeof (struct epoll_event)], | |
727 | [#include <sys/epoll.h>], | |
728 | [libgo_cv_c_epoll_event_size=0])]) | |
729 | SIZEOF_STRUCT_EPOLL_EVENT=${libgo_cv_c_epoll_event_size} | |
730 | AC_SUBST(SIZEOF_STRUCT_EPOLL_EVENT) | |
731 | ||
732 | dnl Work out the offset of the fd field in the epoll_events struct on | |
733 | dnl GNU/Linux. | |
734 | AC_CACHE_CHECK([epoll_event data.fd offset], | |
735 | [libgo_cv_c_epoll_event_fd_offset], | |
736 | [AC_COMPUTE_INT(libgo_cv_c_epoll_event_fd_offset, | |
737 | [offsetof (struct epoll_event, data.fd)], | |
738 | [#include <stddef.h> | |
739 | #include <sys/epoll.h>], | |
740 | [libgo_cv_c_epoll_event_fd_offset=0])]) | |
741 | STRUCT_EPOLL_EVENT_FD_OFFSET=${libgo_cv_c_epoll_event_fd_offset} | |
742 | AC_SUBST(STRUCT_EPOLL_EVENT_FD_OFFSET) | |
743 | ||
476013d6 ILT |
744 | dnl Check if <sys/stat.h> uses timespec_t for st_?tim members. Introduced |
745 | dnl in Solaris 12 for XPG7 compatibility. | |
746 | AC_EGREP_HEADER([timespec_t.*st_atim], [sys/stat.h], | |
747 | [have_stat_timespec=yes], [have_stat_timespec=no]) | |
748 | AM_CONDITIONAL(HAVE_STAT_TIMESPEC, test $have_stat_timespec = yes) | |
749 | ||
d2b480bc ILT |
750 | dnl See if struct exception is defined in <math.h>. |
751 | AC_CHECK_TYPE([struct exception], | |
752 | [libgo_has_struct_exception=yes], | |
753 | [libgo_has_struct_exception=no], | |
754 | [#include <math.h>]) | |
755 | if test "$libgo_has_struct_exception" = "yes"; then | |
756 | AC_DEFINE(HAVE_STRUCT_EXCEPTION, 1, | |
757 | [Define to 1 if <math.h> defines struct exception]) | |
758 | fi | |
759 | ||
7f57843f ILT |
760 | dnl See whether setcontext changes the value of TLS variables. |
761 | AC_CACHE_CHECK([whether setcontext clobbers TLS variables], | |
762 | [libgo_cv_lib_setcontext_clobbers_tls], | |
e6c5817d ILT |
763 | [CFLAGS_hold="$CFLAGS" |
764 | CFLAGS="$PTHREAD_CFLAGS" | |
765 | LIBS_hold="$LIBS" | |
7f57843f | 766 | LIBS="$LIBS $PTHREAD_LIBS" |
e6c5817d ILT |
767 | AC_CHECK_SIZEOF([void *]) |
768 | AS_VAR_ARITH([ptr_type_size], [$ac_cv_sizeof_void_p \* 8]) | |
7f57843f ILT |
769 | AC_RUN_IFELSE( |
770 | [AC_LANG_SOURCE([ | |
771 | #include <pthread.h> | |
772 | #include <stdlib.h> | |
773 | #include <ucontext.h> | |
774 | #include <unistd.h> | |
775 | ||
776 | __thread int tls; | |
777 | ||
778 | static char stack[[10 * 1024 * 1024]]; | |
779 | static ucontext_t c; | |
780 | ||
781 | /* Called via makecontext/setcontext. */ | |
782 | ||
783 | static void | |
784 | cfn (void) | |
785 | { | |
786 | exit (tls); | |
787 | } | |
788 | ||
789 | /* Called via pthread_create. */ | |
790 | ||
791 | static void * | |
792 | tfn (void *dummy) | |
793 | { | |
794 | /* The thread should still see this value after calling | |
795 | setcontext. */ | |
796 | tls = 0; | |
797 | ||
798 | setcontext (&c); | |
799 | ||
800 | /* The call to setcontext should not return. */ | |
801 | abort (); | |
802 | } | |
803 | ||
804 | int | |
805 | main () | |
806 | { | |
807 | pthread_t tid; | |
808 | ||
809 | /* The thread should not see this value. */ | |
810 | tls = 1; | |
811 | ||
812 | if (getcontext (&c) < 0) | |
813 | abort (); | |
814 | ||
815 | c.uc_stack.ss_sp = stack; | |
ca59d219 ILT |
816 | #ifdef MAKECONTEXT_STACK_TOP |
817 | c.uc_stack.ss_sp += sizeof stack; | |
818 | #endif | |
7f57843f ILT |
819 | c.uc_stack.ss_flags = 0; |
820 | c.uc_stack.ss_size = sizeof stack; | |
821 | c.uc_link = NULL; | |
822 | makecontext (&c, cfn, 0); | |
823 | ||
824 | if (pthread_create (&tid, NULL, tfn, NULL) != 0) | |
825 | abort (); | |
826 | ||
827 | if (pthread_join (tid, NULL) != 0) | |
828 | abort (); | |
829 | ||
830 | /* The thread should have called exit. */ | |
831 | abort (); | |
832 | } | |
833 | ])], | |
834 | [libgo_cv_lib_setcontext_clobbers_tls=no], | |
835 | [libgo_cv_lib_setcontext_clobbers_tls=yes], | |
e6c5817d ILT |
836 | [case "$target:$ptr_type_size" in |
837 | i?86-*-solaris2.1[[01]]:64 | x86_64*-*-solaris2.1[[01]]:64) | |
838 | libgo_cv_lib_setcontext_clobbers_tls=yes ;; | |
839 | *) | |
840 | libgo_cv_lib_setcontext_clobbers_tls=no ;; | |
7f57843f ILT |
841 | esac |
842 | ]) | |
e6c5817d | 843 | CFLAGS="$CFLAGS_hold" |
7f57843f ILT |
844 | LIBS="$LIBS_hold" |
845 | ]) | |
846 | if test "$libgo_cv_lib_setcontext_clobbers_tls" = "yes"; then | |
847 | AC_DEFINE(SETCONTEXT_CLOBBERS_TLS, 1, | |
848 | [Define if setcontext clobbers TLS variables]) | |
849 | fi | |
850 | ||
cc1a9ac8 ILT |
851 | AC_CACHE_CHECK([whether .eh_frame section should be read-only], |
852 | libgo_cv_ro_eh_frame, [ | |
853 | libgo_cv_ro_eh_frame=no | |
854 | echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c | |
855 | if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then | |
856 | if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then | |
857 | libgo_cv_ro_eh_frame=yes | |
858 | elif grep '.section.*eh_frame.*#alloc' conftest.c \ | |
859 | | grep -v '#write' > /dev/null; then | |
860 | libgo_cv_ro_eh_frame=yes | |
861 | fi | |
862 | fi | |
863 | rm -f conftest.* | |
864 | ]) | |
865 | if test "x$libgo_cv_ro_eh_frame" = xyes; then | |
866 | AC_DEFINE(EH_FRAME_FLAGS, "a", | |
867 | [Define to the flags needed for the .section .eh_frame directive.]) | |
868 | else | |
869 | AC_DEFINE(EH_FRAME_FLAGS, "aw", | |
870 | [Define to the flags needed for the .section .eh_frame directive.]) | |
871 | fi | |
872 | ||
a819231d ILT |
873 | AC_CACHE_CHECK([if compiler supports -Qunused-arguments], |
874 | [libgo_cv_c_unused_arguments], | |
875 | [CFLAGS_hold=$CFLAGS | |
876 | CFLAGS="$CFLAGS -Qunused-arguments" | |
877 | AC_COMPILE_IFELSE([[int i;]], | |
878 | [libgo_cv_c_unused_arguments=yes], | |
879 | [libgo_cv_c_unused_arguments=no]) | |
880 | CFLAGS=$CFLAGS_hold]) | |
881 | ||
cc1a9ac8 ILT |
882 | AC_CACHE_CHECK([if assembler supports GNU comdat group syntax], |
883 | libgo_cv_as_comdat_gnu, [ | |
884 | echo '.section .text,"axG",@progbits,.foo,comdat' > conftest.s | |
a819231d ILT |
885 | CFLAGS_hold=$CFLAGS |
886 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
887 | CFLAGS="$CFLAGS -Qunused-arguments" | |
888 | fi | |
cc1a9ac8 ILT |
889 | if $CC $CFLAGS -c conftest.s > /dev/null 2>&1; then |
890 | libgo_cv_as_comdat_gnu=yes | |
891 | else | |
892 | libgo_cv_as_comdat_gnu=no | |
893 | fi | |
a819231d | 894 | CFLAGS=$CFLAGS_hold |
cc1a9ac8 ILT |
895 | ]) |
896 | if test "x$libgo_cv_as_comdat_gnu" = xyes; then | |
897 | AC_DEFINE(HAVE_AS_COMDAT_GAS, 1, | |
898 | [Define if your assembler supports GNU comdat group syntax.]) | |
899 | fi | |
900 | ||
901 | AC_CACHE_CHECK([assembler supports pc related relocs], | |
902 | libgo_cv_as_x86_pcrel, [ | |
903 | libgo_cv_as_x86_pcrel=yes | |
904 | echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s | |
a819231d ILT |
905 | CFLAGS_hold=$CFLAGS |
906 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
907 | CFLAGS="$CFLAGS -Qunused-arguments" | |
908 | fi | |
cc1a9ac8 ILT |
909 | if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then |
910 | libgo_cv_as_x86_pcrel=no | |
911 | fi | |
a819231d | 912 | CFLAGS=$CFLAGS_hold |
cc1a9ac8 ILT |
913 | ]) |
914 | if test "x$libgo_cv_as_x86_pcrel" = xyes; then | |
915 | AC_DEFINE(HAVE_AS_X86_PCREL, 1, | |
916 | [Define if your assembler supports PC relative relocs.]) | |
917 | fi | |
918 | ||
919 | AC_CACHE_CHECK([assembler supports unwind section type], | |
920 | libgo_cv_as_x86_64_unwind_section_type, [ | |
921 | libgo_cv_as_x86_64_unwind_section_type=yes | |
922 | echo '.section .eh_frame,"a",@unwind' > conftest.s | |
a819231d ILT |
923 | CFLAGS_hold=$CFLAGS |
924 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
925 | CFLAGS="$CFLAGS -Qunused-arguments" | |
926 | fi | |
cc1a9ac8 ILT |
927 | if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then |
928 | libgo_cv_as_x86_64_unwind_section_type=no | |
929 | fi | |
a819231d | 930 | CFLAGS=$CFLAGS_hold |
cc1a9ac8 ILT |
931 | ]) |
932 | if test "x$libgo_cv_as_x86_64_unwind_section_type" = xyes; then | |
933 | AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1, | |
934 | [Define if your assembler supports unwind section type.]) | |
935 | fi | |
936 | ||
b379f8d8 ILT |
937 | AC_CACHE_CHECK([assembler supports AES instructions], |
938 | libgo_cv_as_x86_aes, [ | |
939 | libgo_cv_as_x86_aes=yes | |
940 | echo 'aesenc %xmm0, %xmm1' > conftest.s | |
941 | CFLAGS_hold=$CFLAGS | |
942 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
943 | CFLAGS="$CFLAGS -Qunused-arguments" | |
944 | fi | |
945 | if $CC $CFLAGS -c conftest.s 2>&1 | grep -i error > /dev/null; then | |
946 | libgo_cv_as_x86_aes=no | |
947 | fi | |
948 | CFLAGS=$CFLAGS_hold | |
949 | ]) | |
950 | if test "x$libgo_cv_as_x86_aes" = xyes; then | |
951 | AC_DEFINE(HAVE_AS_X86_AES, 1, | |
952 | [Define if your assembler supports AES instructions.]) | |
953 | fi | |
954 | ||
7a938933 ILT |
955 | AC_CACHE_SAVE |
956 | ||
957 | if test ${multilib} = yes; then | |
958 | multilib_arg="--enable-multilib" | |
959 | else | |
960 | multilib_arg= | |
961 | fi | |
962 | ||
963 | AC_CONFIG_FILES(Makefile testsuite/Makefile) | |
964 | ||
965 | AC_CONFIG_COMMANDS([default], | |
966 | [if test -n "$CONFIG_FILES"; then | |
967 | # Multilibs need MULTISUBDIR defined correctly in certain makefiles so | |
968 | # that multilib installs will end up installed in the correct place. | |
969 | # The testsuite needs it for multilib-aware ABI baseline files. | |
970 | # To work around this not being passed down from config-ml.in -> | |
971 | # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually | |
972 | # append it here. Only modify Makefiles that have just been created. | |
973 | # | |
974 | # Also, get rid of this simulated-VPATH thing that automake does. | |
975 | cat > vpsed << \_EOF | |
976 | s!`test -f '$<' || echo '$(srcdir)/'`!! | |
977 | _EOF | |
978 | for i in $SUBDIRS; do | |
979 | case $CONFIG_FILES in | |
980 | *${i}/Makefile*) | |
981 | #echo "Adding MULTISUBDIR to $i/Makefile" | |
982 | sed -f vpsed $i/Makefile > tmp | |
983 | grep '^MULTISUBDIR =' Makefile >> tmp | |
984 | mv tmp $i/Makefile | |
985 | ;; | |
986 | esac | |
987 | done | |
988 | rm vpsed | |
989 | fi | |
990 | ], | |
991 | [ | |
992 | # Variables needed in config.status (file generation) which aren't already | |
993 | # passed by autoconf. | |
994 | SUBDIRS="$SUBDIRS" | |
995 | ]) | |
996 | ||
997 | AC_OUTPUT |