]>
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 | ||
7a938933 ILT |
9 | AC_INIT(package-unused, version-unused,, libgo) |
10 | AC_CONFIG_SRCDIR(Makefile.am) | |
11 | AC_CONFIG_HEADER(config.h) | |
12 | ||
11c72cd3 | 13 | libtool_VERSION=22:0:0 |
7a938933 ILT |
14 | AC_SUBST(libtool_VERSION) |
15 | ||
16 | AM_ENABLE_MULTILIB(, ..) | |
17 | ||
18 | AC_CANONICAL_SYSTEM | |
19 | target_alias=${target_alias-$host_alias} | |
20 | ||
73b6d7a9 | 21 | AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dist subdir-objects -Wall -Wno-portability -Wno-override]) |
7a938933 ILT |
22 | AH_TEMPLATE(PACKAGE, [Name of package]) |
23 | AH_TEMPLATE(VERSION, [Version number of package]) | |
24 | ||
25 | m4_rename([_AC_ARG_VAR_PRECIOUS],[glibgo_PRECIOUS]) | |
26 | m4_define([_AC_ARG_VAR_PRECIOUS],[]) | |
27 | AC_PROG_CC | |
28 | AC_PROG_GO | |
4d12cf3c | 29 | AM_PROG_AS |
7a938933 ILT |
30 | m4_rename_force([glibgo_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) |
31 | ||
32 | AC_SUBST(CFLAGS) | |
33 | ||
f163907e ILT |
34 | case ${host} in |
35 | *-*-aix*) | |
83cc5e2b | 36 | # Check default architecture for FAT library creation |
d040555a CC |
37 | if test -z "`$CC -x c -E /dev/null -g3 -o - | grep 64BIT`" ; then |
38 | AIX_EXTRA_ARCH='64' | |
83cc5e2b | 39 | else |
d040555a | 40 | AIX_EXTRA_ARCH='32' |
83cc5e2b | 41 | fi |
d040555a | 42 | AC_SUBST(AIX_EXTRA_ARCH) |
f163907e ILT |
43 | ;; |
44 | esac | |
45 | ||
7a938933 ILT |
46 | AM_MAINTAINER_MODE |
47 | ||
48 | AC_PROG_LD | |
49 | AC_PROG_RANLIB | |
50 | AC_CHECK_TOOL(OBJCOPY, objcopy, missing-objcopy) | |
51 | ||
52 | AC_LIBTOOL_DLOPEN | |
53 | AM_PROG_LIBTOOL | |
54 | AC_SUBST(enable_shared) | |
55 | AC_SUBST(enable_static) | |
56 | ||
d983a802 ILT |
57 | CC_FOR_BUILD=${CC_FOR_BUILD:-gcc} |
58 | AC_SUBST(CC_FOR_BUILD) | |
59 | ||
de27caac ILT |
60 | AC_PROG_AWK |
61 | ||
7a938933 ILT |
62 | WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual' |
63 | AC_SUBST(WARN_FLAGS) | |
64 | ||
45ba6bf2 DS |
65 | AC_ARG_ENABLE([werror], |
66 | [AS_HELP_STRING([--disable-werror], [disable building with -Werror])]) | |
67 | AS_IF([test "x$enable_werror" != "xno" && test "x$GCC" = "xyes"], | |
68 | [WERROR="-Werror"]) | |
7a938933 ILT |
69 | AC_SUBST(WERROR) |
70 | ||
71 | glibgo_toolexecdir=no | |
72 | glibgo_toolexeclibdir=no | |
7a938933 ILT |
73 | |
74 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
75 | AC_ARG_ENABLE([version-specific-runtime-libs], | |
76 | AC_HELP_STRING([--enable-version-specific-runtime-libs], | |
77 | [Specify that runtime libraries should be installed in a compiler-specific directory]), | |
78 | [case "$enableval" in | |
79 | yes) version_specific_libs=yes ;; | |
80 | no) version_specific_libs=no ;; | |
81 | *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; | |
82 | esac], | |
83 | [version_specific_libs=no]) | |
84 | AC_MSG_RESULT($version_specific_libs) | |
85 | ||
ba386bea ILT |
86 | GCC_WITH_TOOLEXECLIBDIR |
87 | ||
7a938933 ILT |
88 | # Version-specific runtime libs processing. |
89 | if test $version_specific_libs = yes; then | |
90 | glibgo_toolexecdir='${libdir}/gcc/${host_alias}' | |
91 | glibgo_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)' | |
92 | fi | |
93 | ||
94 | # Calculate glibgo_toolexecdir, glibgo_toolexeclibdir | |
95 | # Install a library built with a cross compiler in tooldir, not libdir. | |
317ea7c0 ILT |
96 | if test -n "$with_cross_host" && |
97 | test x"$with_cross_host" != x"no"; then | |
98 | nover_glibgo_toolexecdir='${exec_prefix}/${host_alias}' | |
ba386bea ILT |
99 | case ${with_toolexeclibdir} in |
100 | no) | |
101 | nover_glibgo_toolexeclibdir='${toolexecdir}/lib' | |
102 | ;; | |
103 | *) | |
104 | nover_glibgo_toolexeclibdir=${with_toolexeclibdir} | |
105 | ;; | |
106 | esac | |
317ea7c0 ILT |
107 | else |
108 | nover_glibgo_toolexecdir='${libdir}/gcc/${host_alias}' | |
109 | nover_glibgo_toolexeclibdir='${libdir}' | |
110 | fi | |
6c76a95d | 111 | multi_os_directory=`$GOC -print-multi-os-directory` |
317ea7c0 ILT |
112 | case $multi_os_directory in |
113 | .) ;; # Avoid trailing /. | |
114 | *) nover_glibgo_toolexeclibdir=${nover_glibgo_toolexeclibdir}/${multi_os_directory} ;; | |
115 | esac | |
116 | ||
7a938933 | 117 | if test x"$glibgo_toolexecdir" = x"no"; then |
317ea7c0 ILT |
118 | glibgo_toolexecdir="${nover_glibgo_toolexecdir}" |
119 | glibgo_toolexeclibdir="${nover_glibgo_toolexeclibdir}" | |
7a938933 ILT |
120 | fi |
121 | ||
7a938933 ILT |
122 | AC_SUBST(glibgo_toolexecdir) |
123 | AC_SUBST(glibgo_toolexeclibdir) | |
317ea7c0 | 124 | AC_SUBST(nover_glibgo_toolexeclibdir) |
7a938933 ILT |
125 | |
126 | # See if the user wants to configure without libffi. Some | |
127 | # architectures don't support it. FIXME: We should set a default | |
128 | # based on the host. | |
129 | AC_ARG_WITH(libffi, | |
130 | AS_HELP_STRING([--without-libffi], | |
131 | [don't use libffi]), | |
132 | [:], | |
133 | [with_libffi=${with_libffi_default-yes}]) | |
134 | ||
135 | LIBFFI= | |
136 | LIBFFIINCS= | |
137 | if test "$with_libffi" != no; then | |
138 | AC_DEFINE(USE_LIBFFI, 1, [Define if we're to use libffi.]) | |
139 | LIBFFI=../libffi/libffi_convenience.la | |
140 | LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I../libffi/include' | |
141 | fi | |
142 | AC_SUBST(LIBFFI) | |
143 | AC_SUBST(LIBFFIINCS) | |
8b9cfd76 | 144 | AM_CONDITIONAL(USE_LIBFFI, test "$with_libffi" != "no") |
7a938933 | 145 | |
9a85ed03 ILT |
146 | # See if the user wants to configure without libatomic. This is useful if we are |
147 | # on an architecture for which libgo does not need an atomic support library and | |
148 | # libatomic does not support our C compiler. | |
149 | AC_ARG_WITH(libatomic, | |
150 | AS_HELP_STRING([--without-libatomic], | |
151 | [don't use libatomic]), | |
152 | [:], | |
153 | [with_libatomic=${with_libatomic_default-yes}]) | |
154 | ||
155 | LIBATOMIC= | |
156 | if test "$with_libatomic" != no; then | |
157 | LIBATOMIC=../libatomic/libatomic_convenience.la | |
158 | fi | |
159 | AC_SUBST(LIBATOMIC) | |
160 | ||
18c70075 ILT |
161 | # Used to tell GNU make to include a file without telling automake to |
162 | # include it. | |
163 | go_include="-include" | |
164 | AC_SUBST(go_include) | |
165 | ||
a8464243 ILT |
166 | # All known GOOS values. This is the union of all operating systems |
167 | # supported by the gofrontend and all operating systems supported by | |
168 | # the gc toolchain. | |
cfcbb422 | 169 | ALLGOOS="aix android darwin dragonfly freebsd hurd illumos ios irix js linux netbsd openbsd plan9 rtems solaris windows zos" |
a8464243 | 170 | |
7a938933 ILT |
171 | is_darwin=no |
172 | is_freebsd=no | |
654d2ec0 | 173 | is_irix=no |
7a938933 | 174 | is_linux=no |
1efa38d1 | 175 | is_netbsd=no |
4ccad563 | 176 | is_openbsd=no |
f038dae6 | 177 | is_dragonfly=no |
7a938933 | 178 | is_rtems=no |
f2ee78b8 | 179 | is_solaris=no |
f163907e | 180 | is_aix=no |
d9f0237f | 181 | is_hurd=no |
c3b5b97b | 182 | GOOS=unknown |
7a938933 | 183 | case ${host} in |
f2ee78b8 ILT |
184 | *-*-darwin*) is_darwin=yes; GOOS=darwin ;; |
185 | *-*-freebsd*) is_freebsd=yes; GOOS=freebsd ;; | |
654d2ec0 | 186 | *-*-irix6*) is_irix=yes; GOOS=irix ;; |
f2ee78b8 | 187 | *-*-linux*) is_linux=yes; GOOS=linux ;; |
df4aa89a | 188 | *-*-netbsd*) is_netbsd=yes; GOOS=netbsd ;; |
4ccad563 | 189 | *-*-openbsd*) is_openbsd=yes; GOOS=openbsd ;; |
f038dae6 | 190 | *-*-dragonfly*) is_dragonfly=yes; GOOS=dragonfly ;; |
f2ee78b8 ILT |
191 | *-*-rtems*) is_rtems=yes; GOOS=rtems ;; |
192 | *-*-solaris2*) is_solaris=yes; GOOS=solaris ;; | |
f163907e | 193 | *-*-aix*) is_aix=yes; GOOS=aix ;; |
d9f0237f | 194 | *-*-gnu*) is_hurd=yes; GOOS=hurd ;; |
7a938933 ILT |
195 | esac |
196 | AM_CONDITIONAL(LIBGO_IS_DARWIN, test $is_darwin = yes) | |
197 | AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = yes) | |
654d2ec0 | 198 | AM_CONDITIONAL(LIBGO_IS_IRIX, test $is_irix = yes) |
7a938933 | 199 | AM_CONDITIONAL(LIBGO_IS_LINUX, test $is_linux = yes) |
df4aa89a | 200 | AM_CONDITIONAL(LIBGO_IS_NETBSD, test $is_netbsd = yes) |
4ccad563 | 201 | AM_CONDITIONAL(LIBGO_IS_OPENBSD, test $is_openbsd = yes) |
824393bd | 202 | AM_CONDITIONAL(LIBGO_IS_DRAGONFLY, test $is_dragonfly = yes) |
7a938933 | 203 | AM_CONDITIONAL(LIBGO_IS_RTEMS, test $is_rtems = yes) |
f2ee78b8 | 204 | AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes) |
f163907e | 205 | AM_CONDITIONAL(LIBGO_IS_AIX, test $is_aix = yes) |
d9f0237f | 206 | AM_CONDITIONAL(LIBGO_IS_HURD, test $is_hurd = yes) |
22b955cc | 207 | 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 | 208 | AC_SUBST(GOOS) |
a8464243 | 209 | AC_SUBST(ALLGOOS) |
7a938933 | 210 | |
7134cf28 ILT |
211 | dnl Test whether we need to use DejaGNU or whether we can use the |
212 | dnl simpler gotest approach. We can only use gotest for a native | |
213 | dnl build. | |
214 | USE_DEJAGNU=no | |
215 | case ${host} in | |
216 | *-*-rtems*) USE_DEJAGNU=yes ;; | |
553752e1 | 217 | ${build}) ;; |
7134cf28 ILT |
218 | *) USE_DEJAGNU=yes ;; |
219 | esac | |
220 | AC_SUBST(USE_DEJAGNU) | |
221 | ||
a8464243 ILT |
222 | # All known GOARCH values. This is the union of all architectures |
223 | # supported by the gofrontend and all architectures supported by the | |
224 | # gc toolchain. | |
ffad1c54 ILT |
225 | # To add a new architecture: |
226 | # - add it to this list | |
227 | # - if appropriate, add an entry to ALLGOARCHFAMILY below | |
228 | # - add an entry to the case on ${host} below to set GOARCH | |
229 | # - update goarchList in libgo/go/go/build/syslist.go | |
230 | # - update goarch.sh to report the values for this architecture | |
231 | # - update go-set-goarch in gcc/testsuite/go.test/go-test.exp | |
232 | # - update ptrSizeMap and intSizeMap in libgo/go/cmd/cgo/main.go | |
233 | # - update arch lists in libgo/match.sh | |
234 | # - update arch lists in libgo/testsuite/gotest | |
235 | # - update +build lines in several places | |
236 | # - libgo/go/runtime/lfstack_NNbit.go | |
237 | # - libgo/go/runtime/hashNN.go | |
238 | # - libgo/go/runtime/unalignedN.go | |
239 | # - libgo/go/syscall/endian_XX.go | |
240 | # - possibly others | |
241 | # - possibly update files in libgo/go/internal/syscall/unix | |
87cbbc45 | 242 | ALLGOARCH="386 alpha amd64 amd64p32 arm armbe arm64 arm64be ia64 m68k mips mipsle mips64 mips64le mips64p32 mips64p32le nios2 ppc ppc64 ppc64le riscv riscv64 s390 s390x sh shbe sparc sparc64 wasm" |
a8464243 | 243 | |
ffad1c54 | 244 | # All known GOARCH family values. |
87cbbc45 | 245 | ALLGOARCHFAMILY="I386 ALPHA AMD64 ARM ARM64 IA64 M68K MIPS MIPS64 NIOS2 PPC PPC64 RISCV RISCV64 S390 S390X SH SPARC SPARC64 WASM" |
a8464243 | 246 | |
c3b5b97b | 247 | GOARCH=unknown |
7a938933 | 248 | case ${host} in |
e59b9171 | 249 | alpha*-*-*) |
e59b9171 ILT |
250 | GOARCH=alpha |
251 | ;; | |
71d0d50a | 252 | aarch64-*-*) |
71d0d50a ILT |
253 | GOARCH=arm64 |
254 | ;; | |
9961856c ILT |
255 | aarch64_be-*-*) |
256 | GOARCH=arm64be | |
257 | ;; | |
ca11cc98 | 258 | arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*) |
ca11cc98 | 259 | GOARCH=arm |
1a2f01ef ILT |
260 | case ${host} in |
261 | arm*b*-*-*) | |
262 | GOARCH=armbe | |
1a2f01ef ILT |
263 | ;; |
264 | esac | |
ca11cc98 | 265 | ;; |
7a938933 | 266 | changequote(,)dnl |
c3b5b97b | 267 | i[34567]86-*-* | x86_64-*-*) |
7a938933 | 268 | changequote([,])dnl |
73b6d7a9 | 269 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
c3b5b97b ILT |
270 | #ifdef __x86_64__ |
271 | #error 64-bit | |
73b6d7a9 ILT |
272 | #endif |
273 | ])], | |
44ef0300 | 274 | [GOARCH=386], |
73b6d7a9 | 275 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
44ef0300 ILT |
276 | #ifdef __ILP32__ |
277 | #error x32 | |
73b6d7a9 ILT |
278 | #endif |
279 | ])], | |
44ef0300 ILT |
280 | [GOARCH=amd64], |
281 | [GOARCH=amd64p32])) | |
7a938933 | 282 | ;; |
4f8e688a | 283 | ia64-*-*) |
4f8e688a ILT |
284 | GOARCH=ia64 |
285 | ;; | |
ca11cc98 | 286 | m68k*-*-*) |
ca11cc98 ILT |
287 | GOARCH=m68k |
288 | ;; | |
289 | mips*-*-*) | |
73b6d7a9 | 290 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
85a09210 ILT |
291 | #if _MIPS_SIM != _ABIO32 |
292 | #error not o32 | |
73b6d7a9 ILT |
293 | #endif |
294 | ])], | |
85a09210 | 295 | [mips_abi="o32"], |
73b6d7a9 | 296 | [AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
85a09210 ILT |
297 | #if _MIPS_SIM != _ABIN32 |
298 | #error not n32 | |
73b6d7a9 ILT |
299 | #endif |
300 | ])], | |
85a09210 | 301 | [mips_abi="n32"], |
73b6d7a9 | 302 | [AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
85a09210 ILT |
303 | #if _MIPS_SIM != _ABI64 |
304 | #error not n64 | |
73b6d7a9 ILT |
305 | #endif |
306 | ])], | |
85a09210 | 307 | [mips_abi="n64"], |
85a09210 | 308 | [AC_MSG_ERROR([unknown MIPS ABI]) |
b95cd48b | 309 | [mips_abi="n32"]])])]) |
85a09210 | 310 | case "$mips_abi" in |
1701a9d8 ILT |
311 | "o32") GOARCH=mips ;; |
312 | "n32") GOARCH=mips64p32 ;; | |
313 | "n64") GOARCH=mips64 ;; | |
85a09210 | 314 | esac |
a8464243 | 315 | case "${host}" in |
1701a9d8 ILT |
316 | mips*el-*-*) |
317 | GOARCH="${GOARCH}le" | |
a8464243 | 318 | ;; |
a8464243 | 319 | esac |
ca11cc98 | 320 | ;; |
746d6ed4 ILT |
321 | nios2-*-*) |
322 | GOARCH=nios2 | |
323 | ;; | |
ca11cc98 | 324 | rs6000*-*-* | powerpc*-*-*) |
73b6d7a9 | 325 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
ca11cc98 ILT |
326 | #ifdef _ARCH_PPC64 |
327 | #error 64-bit | |
73b6d7a9 ILT |
328 | #endif |
329 | ])], | |
ffad1c54 | 330 | [GOARCH=ppc], |
a8464243 | 331 | [ |
73b6d7a9 | 332 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
6f7ccafa ILT |
333 | #if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__) |
334 | #error 64be | |
73b6d7a9 ILT |
335 | #endif |
336 | ])], | |
ffad1c54 ILT |
337 | [GOARCH=ppc64le], |
338 | [GOARCH=ppc64])]) | |
7a938933 | 339 | ;; |
2c5499b5 MR |
340 | riscv*-*-*) |
341 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ | |
342 | #if __riscv_xlen == 64 | |
343 | #error 64-bit | |
344 | #endif | |
345 | ])], | |
346 | [GOARCH=riscv], | |
347 | [GOARCH=riscv64]) | |
b613cc2e | 348 | ;; |
1fec5f52 | 349 | s390*-*-*) |
73b6d7a9 | 350 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
1fec5f52 ILT |
351 | #if defined(__s390x__) |
352 | #error 64-bit | |
73b6d7a9 ILT |
353 | #endif |
354 | ])], | |
ffad1c54 ILT |
355 | [GOARCH=s390], |
356 | [GOARCH=s390x]) | |
fd0c1dd1 | 357 | ;; |
ffad1c54 | 358 | sh3eb*-*-* | sh4eb*-*-*) |
fd0c1dd1 | 359 | GOARCH=shbe |
fd0c1dd1 | 360 | ;; |
ffad1c54 | 361 | sh3*-*-* | sh4*-*-*) |
fd0c1dd1 | 362 | GOARCH=sh |
fd0c1dd1 | 363 | ;; |
f2ee78b8 | 364 | sparc*-*-*) |
73b6d7a9 | 365 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
f2ee78b8 ILT |
366 | #if defined(__sparcv9) || defined(__arch64__) |
367 | #error 64-bit | |
73b6d7a9 ILT |
368 | #endif |
369 | ])], | |
ffad1c54 ILT |
370 | [GOARCH=sparc], |
371 | [GOARCH=sparc64]) | |
f2ee78b8 | 372 | ;; |
7a938933 | 373 | esac |
c3b5b97b | 374 | AC_SUBST(GOARCH) |
a8464243 ILT |
375 | AC_SUBST(ALLGOARCH) |
376 | AC_SUBST(ALLGOARCHFAMILY) | |
7a938933 | 377 | |
de0f55db ILT |
378 | AM_CONDITIONAL(LIBGO_IS_X86, test "$GOARCH" = "386" -o "$GOARCH" = "amd64" -o "$GOARCH" = "amd64p32") |
379 | ||
cba8a572 ILT |
380 | FUNCTION_DESCRIPTORS=false |
381 | case ${host} in | |
382 | rs6000*-*-* | powerpc*-*-*) | |
383 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ | |
384 | #if _CALL_ELF == 1 | |
385 | #error descriptors | |
386 | #endif | |
387 | ])], | |
388 | [FUNCTION_DESCRIPTORS=false], | |
389 | [FUNCTION_DESCRIPTORS=true]) | |
390 | ;; | |
391 | esac | |
392 | AC_SUBST(FUNCTION_DESCRIPTORS) | |
393 | ||
ca11cc98 | 394 | dnl Some files are only present when needed for specific architectures. |
de27caac ILT |
395 | GO_LIBCALL_OS_FILE= |
396 | GO_LIBCALL_OS_ARCH_FILE= | |
397 | GO_SYSCALL_OS_FILE= | |
398 | GO_SYSCALL_OS_ARCH_FILE= | |
204b9fc2 ILT |
399 | if test -f "${srcdir}/go/syscall/libcall_${GOOS}.go"; then |
400 | GO_LIBCALL_OS_FILE="go/syscall/libcall_${GOOS}.go" | |
de27caac | 401 | fi |
204b9fc2 ILT |
402 | if test -f "${srcdir}/go/syscall/libcall_${GOOS}_${GOARCH}.go"; then |
403 | GO_LIBCALL_OS_ARCH_FILE="go/syscall/libcall_${GOOS}_${GOARCH}.go" | |
de27caac | 404 | fi |
204b9fc2 ILT |
405 | if test -f "${srcdir}/go/syscall/syscall_${GOOS}.go"; then |
406 | GO_SYSCALL_OS_FILE="go/syscall/syscall_${GOOS}.go" | |
de27caac | 407 | fi |
204b9fc2 ILT |
408 | if test -f "${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go"; then |
409 | GO_SYSCALL_OS_ARCH_FILE="go/syscall/syscall_${GOOS}_${GOARCH}.go" | |
ca11cc98 | 410 | fi |
de27caac ILT |
411 | AC_SUBST(GO_LIBCALL_OS_FILE) |
412 | AC_SUBST(GO_LIBCALL_OS_ARCH_FILE) | |
413 | AC_SUBST(GO_SYSCALL_OS_FILE) | |
414 | AC_SUBST(GO_SYSCALL_OS_ARCH_FILE) | |
ca11cc98 | 415 | |
d48be5df ILT |
416 | dnl Special flags used to generate sysinfo.go. |
417 | OSCFLAGS="-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" | |
90630d19 | 418 | case "$target" in |
9f3b1e6c ILT |
419 | mips-sgi-irix6.5*) |
420 | # IRIX 6 needs _XOPEN_SOURCE=500 for the XPG5 version of struct | |
421 | # msghdr in <sys/socket.h>. | |
d48be5df | 422 | OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500" |
9f3b1e6c | 423 | ;; |
93ee143d | 424 | *-*-solaris2.*) |
90630d19 | 425 | # Solaris 10+ needs this so struct msghdr gets the msg_control |
bbe847a1 | 426 | # etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as |
90630d19 | 427 | # above doesn't work with C99. |
bbe847a1 | 428 | OSCFLAGS="$OSCFLAGS -std=gnu99 -D_XOPEN_SOURCE=600 -D__EXTENSIONS__" |
90630d19 ILT |
429 | ;; |
430 | esac | |
431 | AC_SUBST(OSCFLAGS) | |
432 | ||
08934aed ILT |
433 | dnl Check if assembler supports disabling hardware capability support. |
434 | GCC_CHECK_ASSEMBLER_HWCAP | |
c3c54e0f | 435 | |
7a938933 ILT |
436 | dnl Use -fsplit-stack when compiling C code if available. |
437 | AC_CACHE_CHECK([whether -fsplit-stack is supported], | |
f2ee78b8 | 438 | [libgo_cv_c_split_stack_supported], |
7a938933 ILT |
439 | [CFLAGS_hold=$CFLAGS |
440 | CFLAGS="$CFLAGS -fsplit-stack" | |
73b6d7a9 | 441 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
f2ee78b8 ILT |
442 | [libgo_cv_c_split_stack_supported=yes], |
443 | [libgo_cv_c_split_stack_supported=no]) | |
7a938933 | 444 | CFLAGS=$CFLAGS_hold]) |
c33c18cd ILT |
445 | |
446 | dnl Make sure the linker permits -fsplit-stack. Old versions of gold will | |
447 | dnl reject split-stack code calling non-split-stack code on targets | |
448 | dnl they don't support. | |
449 | AC_CACHE_CHECK([whether linker supports split/non-split linked together], | |
450 | [libgo_cv_c_linker_split_non_split], | |
451 | [cat > conftest1.c << EOF | |
452 | extern void f(); | |
453 | int main() { f(); return 0; } | |
454 | EOF | |
455 | cat > conftest2.c << EOF | |
456 | void f() {} | |
457 | EOF | |
207f844e ILT |
458 | $CC -c -fsplit-stack $CFLAGS $CPPFLAGS conftest1.c >/dev/null 2>&1 |
459 | $CC -c $CFLAGS $CPPFLAGS conftest2.c > /dev/null 2>&1 | |
460 | if $CC -o conftest conftest1.$ac_objext conftest2.$ac_objext > /dev/null 2>&1; then | |
c33c18cd ILT |
461 | libgo_cv_c_linker_split_non_split=yes |
462 | else | |
463 | libgo_cv_c_linker_split_non_split=no | |
464 | fi | |
465 | rm -f conftest1.* conftest2.* conftest]) | |
466 | ||
467 | if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes; then | |
7a938933 ILT |
468 | SPLIT_STACK=-fsplit-stack |
469 | AC_DEFINE(USING_SPLIT_STACK, 1, | |
470 | [Define if the compiler supports -fsplit-stack]) | |
471 | else | |
472 | SPLIT_STACK= | |
473 | fi | |
474 | AC_SUBST(SPLIT_STACK) | |
475 | AM_CONDITIONAL(USING_SPLIT_STACK, | |
c33c18cd | 476 | test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes) |
7a938933 | 477 | |
a2bf11d1 ILT |
478 | dnl If the compiler supports split-stack but the linker does not, then |
479 | dnl we need to explicitly disable split-stack for Go. | |
480 | if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = no; then | |
481 | GO_SPLIT_STACK=-fno-split-stack | |
482 | else | |
483 | GO_SPLIT_STACK= | |
484 | fi | |
485 | AC_SUBST(GO_SPLIT_STACK) | |
486 | ||
7a938933 ILT |
487 | dnl Check whether the linker does stack munging when calling from |
488 | dnl split-stack into non-split-stack code. We check this by looking | |
489 | dnl at the --help output. FIXME: This is only half right: it's | |
490 | dnl possible for the linker to support this for some targets but not | |
491 | dnl others. | |
c33c18cd ILT |
492 | dnl This is slightly different from the above check, which is whether |
493 | dnl the linker permits the call at all. | |
7a938933 | 494 | AC_CACHE_CHECK([whether linker supports split stack], |
f2ee78b8 | 495 | [libgo_cv_c_linker_supports_split_stack], |
f56c5dd1 ILT |
496 | [libgo_cv_c_linker_supports_split_stack=no |
497 | if $GOC -Wl,--help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then | |
f2ee78b8 | 498 | libgo_cv_c_linker_supports_split_stack=yes |
f56c5dd1 | 499 | fi]) |
f2ee78b8 | 500 | if test "$libgo_cv_c_linker_supports_split_stack" = yes; then |
7a938933 ILT |
501 | AC_DEFINE(LINKER_SUPPORTS_SPLIT_STACK, 1, |
502 | [Define if the linker support split stack adjustments]) | |
503 | fi | |
504 | ||
4c46b5f0 ILT |
505 | AC_CACHE_CHECK([whether compiler is llgo], |
506 | [libgo_cv_c_goc_is_llgo], | |
507 | [libgo_cv_c_goc_is_llgo=no | |
508 | if $GOC -dumpversion 2>/dev/null | grep llgo >/dev/null 2>&1; then | |
509 | libgo_cv_c_goc_is_llgo=yes | |
510 | fi]) | |
511 | AM_CONDITIONAL(GOC_IS_LLGO, test "$libgo_cv_c_goc_is_llgo" = yes) | |
512 | ||
505b439a ILT |
513 | dnl Test for the -lm library. |
514 | MATH_LIBS= | |
515 | AC_CHECK_LIB([m], [sqrt], MATH_LIBS=-lm) | |
516 | AC_SUBST(MATH_LIBS) | |
517 | ||
f2ee78b8 ILT |
518 | dnl Test for -lsocket and -lnsl. Copied from libjava/configure.ac. |
519 | AC_CACHE_CHECK([for socket libraries], libgo_cv_lib_sockets, | |
520 | [libgo_cv_lib_sockets= | |
521 | libgo_check_both=no | |
522 | AC_CHECK_FUNC(connect, libgo_check_socket=no, libgo_check_socket=yes) | |
523 | if test "$libgo_check_socket" = "yes"; then | |
524 | unset ac_cv_func_connect | |
525 | AC_CHECK_LIB(socket, main, libgo_cv_lib_sockets="-lsocket", | |
526 | libgo_check_both=yes) | |
527 | fi | |
528 | if test "$libgo_check_both" = "yes"; then | |
529 | libgo_old_libs=$LIBS | |
530 | LIBS="$LIBS -lsocket -lnsl" | |
531 | unset ac_cv_func_accept | |
532 | AC_CHECK_FUNC(accept, | |
533 | [libgo_check_nsl=no | |
534 | libgo_cv_lib_sockets="-lsocket -lnsl"]) | |
535 | unset ac_cv_func_accept | |
536 | LIBS=$libgo_old_libs | |
537 | fi | |
538 | unset ac_cv_func_gethostbyname | |
539 | libgo_old_libs="$LIBS" | |
540 | AC_CHECK_FUNC(gethostbyname, , | |
541 | [AC_CHECK_LIB(nsl, main, | |
542 | [libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lnsl"])]) | |
543 | unset ac_cv_func_gethostbyname | |
88cf4de8 ILT |
544 | AC_CHECK_FUNC(sendfile, , |
545 | [AC_CHECK_LIB(sendfile, main, | |
546 | [libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lsendfile"])]) | |
f2ee78b8 ILT |
547 | LIBS=$libgo_old_libs |
548 | ]) | |
549 | NET_LIBS="$libgo_cv_lib_sockets" | |
550 | AC_SUBST(NET_LIBS) | |
551 | ||
6c94a9fa ILT |
552 | dnl Test whether the compiler supports the -pthread option. |
553 | AC_CACHE_CHECK([whether -pthread is supported], | |
f2ee78b8 | 554 | [libgo_cv_lib_pthread], |
6c94a9fa | 555 | [CFLAGS_hold=$CFLAGS |
35e7db41 | 556 | CFLAGS="$CFLAGS -pthread -L../libatomic/.libs" |
73b6d7a9 | 557 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
f2ee78b8 ILT |
558 | [libgo_cv_lib_pthread=yes], |
559 | [libgo_cv_lib_pthread=no]) | |
6c94a9fa ILT |
560 | CFLAGS=$CFLAGS_hold]) |
561 | PTHREAD_CFLAGS= | |
f2ee78b8 | 562 | if test "$libgo_cv_lib_pthread" = yes; then |
35e7db41 ILT |
563 | # RISC-V apparently adds -latomic when using -pthread. |
564 | PTHREAD_CFLAGS="-pthread -L../libatomic/.libs" | |
6c94a9fa ILT |
565 | fi |
566 | AC_SUBST(PTHREAD_CFLAGS) | |
567 | ||
568 | dnl Test for the -lpthread library. | |
569 | PTHREAD_LIBS= | |
570 | AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS=-lpthread) | |
571 | AC_SUBST(PTHREAD_LIBS) | |
572 | ||
2b1a604a ILT |
573 | dnl Test if -lucontext is required for makecontext. |
574 | AC_SEARCH_LIBS([makecontext], [ucontext]) | |
575 | ||
bbbe8b33 | 576 | dnl Test if -lrt is required for sched_yield or nanosleep or clock_gettime. |
ed4ebabc | 577 | AC_SEARCH_LIBS([sched_yield], [rt]) |
ae135907 | 578 | AC_SEARCH_LIBS([nanosleep], [rt]) |
bbbe8b33 | 579 | AC_SEARCH_LIBS([clock_gettime], [rt]) |
ed4ebabc | 580 | |
7a938933 ILT |
581 | AC_C_BIGENDIAN |
582 | ||
583 | GCC_CHECK_UNWIND_GETIPINFO | |
584 | ||
7f195a22 | 585 | AC_CHECK_HEADERS(fcntl.h 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/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.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/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h) |
6222bddc ILT |
586 | |
587 | AC_CHECK_HEADERS([netinet/icmp6.h], [], [], | |
588 | [#include <netinet/in.h> | |
589 | ]) | |
adb0401d | 590 | |
1410c222 | 591 | 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 |
592 | [#ifdef HAVE_SYS_SOCKET_H |
593 | #include <sys/socket.h> | |
594 | #endif | |
595 | ]) | |
596 | ||
7a938933 | 597 | AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes) |
8955c80a | 598 | |
d8ccfadb | 599 | AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv unsetenv dl_iterate_phdr memmem) |
8955c80a | 600 | AM_CONDITIONAL(HAVE_STRERROR_R, test "$ac_cv_func_strerror_r" = yes) |
0b3189e7 | 601 | AM_CONDITIONAL(HAVE_WAIT4, test "$ac_cv_func_wait4" = yes) |
7a938933 | 602 | |
cfcbb422 ILT |
603 | AC_STRUCT_DIRENT_D_TYPE |
604 | ||
f163907e | 605 | AC_CHECK_FUNCS(accept4 dup3 epoll_create1 faccessat fallocate fchmodat fchownat futimesat getxattr inotify_add_watch inotify_init inotify_init1 inotify_rm_watch listxattr mkdirat mknodat open64 openat pipe2 removexattr renameat setxattr sync_file_range splice syscall tee unlinkat unshare utimensat) |
5d46bf05 | 606 | AC_TYPE_OFF_T |
7f195a22 ILT |
607 | |
608 | CFLAGS_hold="$CFLAGS" | |
609 | CFLAGS="$OSCFLAGS $CFLAGS" | |
7905a9ac ILT |
610 | AC_CHECK_TYPES([loff_t], [], [], [[ |
611 | #include <sys/types.h> | |
612 | #include <fcntl.h> | |
613 | ]]) | |
7f195a22 | 614 | CFLAGS="$CFLAGS_hold" |
e02ed81e | 615 | |
324612b3 ILT |
616 | LIBS_hold="$LIBS" |
617 | LIBS="$LIBS -lm" | |
618 | AC_CHECK_FUNCS(cosl expl logl sinl tanl acosl asinl atanl atan2l expm1l ldexpl log10l log1pl) | |
619 | LIBS="$LIBS_hold" | |
620 | ||
08ee945e ILT |
621 | CFLAGS_hold="$CFLAGS" |
622 | CFLAGS="$CFLAGS $PTHREAD_CFLAGS" | |
623 | LIBS_hold="$LIBS" | |
624 | LIBS="$LIBS $PTHREAD_LIBS" | |
625 | AC_CHECK_FUNCS(sem_timedwait) | |
626 | CFLAGS="$CFLAGS_hold" | |
627 | LIBS="$LIBS_hold" | |
628 | ||
d2b480bc ILT |
629 | LIBS_hold="$LIBS" |
630 | LIBS="$LIBS $MATH_LIBS" | |
631 | AC_CHECK_FUNCS(matherr) | |
632 | LIBS="$LIBS_hold" | |
633 | ||
7a938933 ILT |
634 | dnl For x86 we want to use the -minline-all-stringops option to avoid |
635 | dnl forcing a stack split when calling memcpy and friends. | |
636 | AC_CACHE_CHECK([whether compiler supports -minline-all-stringops], | |
f2ee78b8 | 637 | [libgo_cv_c_stringops], |
7a938933 ILT |
638 | [CFLAGS_hold=$CFLAGS |
639 | CFLAGS="$CFLAGS -minline-all-stringops" | |
73b6d7a9 | 640 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
f2ee78b8 ILT |
641 | [libgo_cv_c_stringops=yes], |
642 | [libgo_cv_c_stringops=no]) | |
7a938933 ILT |
643 | CFLAGS=$CFLAGS_hold]) |
644 | STRINGOPS_FLAG= | |
f2ee78b8 | 645 | if test "$libgo_cv_c_stringops" = yes; then |
7a938933 ILT |
646 | STRINGOPS_FLAG=-minline-all-stringops |
647 | fi | |
648 | AC_SUBST(STRINGOPS_FLAG) | |
649 | ||
9d465faf | 650 | dnl For x86 we want to compile the math library with -mfancy-math-387 |
28f3c814 | 651 | dnl so that we can use the builtin instructions directly. |
9d465faf ILT |
652 | AC_CACHE_CHECK([whether compiler supports -mfancy-math-387], |
653 | [libgo_cv_c_fancymath], | |
654 | [CFLAGS_hold=$CFLAGS | |
655 | CFLAGS="$CFLAGS -mfancy-math-387" | |
73b6d7a9 | 656 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
9d465faf ILT |
657 | [libgo_cv_c_fancymath=yes], |
658 | [libgo_cv_c_fancymath=no]) | |
659 | CFLAGS=$CFLAGS_hold]) | |
660 | MATH_FLAG= | |
661 | if test "$libgo_cv_c_fancymath" = yes; then | |
28f3c814 | 662 | MATH_FLAG="-mfancy-math-387" |
9d465faf | 663 | fi |
28f3c814 | 664 | MATH_FLAG="${MATH_FLAG} -ffp-contract=off -fno-math-errno -fno-trapping-math" |
9d465faf ILT |
665 | AC_SUBST(MATH_FLAG) |
666 | ||
7a938933 ILT |
667 | CFLAGS_hold=$CFLAGS |
668 | CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE" | |
e02ed81e | 669 | AC_CHECK_TYPES([off64_t]) |
7a938933 ILT |
670 | CFLAGS=$CFLAGS_hold |
671 | ||
207c35fa ILT |
672 | dnl Work out the size of the epoll_events struct on GNU/Linux. |
673 | AC_CACHE_CHECK([epoll_event size], | |
674 | [libgo_cv_c_epoll_event_size], | |
675 | [AC_COMPUTE_INT(libgo_cv_c_epoll_event_size, | |
676 | [sizeof (struct epoll_event)], | |
677 | [#include <sys/epoll.h>], | |
678 | [libgo_cv_c_epoll_event_size=0])]) | |
679 | SIZEOF_STRUCT_EPOLL_EVENT=${libgo_cv_c_epoll_event_size} | |
680 | AC_SUBST(SIZEOF_STRUCT_EPOLL_EVENT) | |
681 | ||
682 | dnl Work out the offset of the fd field in the epoll_events struct on | |
683 | dnl GNU/Linux. | |
684 | AC_CACHE_CHECK([epoll_event data.fd offset], | |
685 | [libgo_cv_c_epoll_event_fd_offset], | |
686 | [AC_COMPUTE_INT(libgo_cv_c_epoll_event_fd_offset, | |
687 | [offsetof (struct epoll_event, data.fd)], | |
688 | [#include <stddef.h> | |
689 | #include <sys/epoll.h>], | |
690 | [libgo_cv_c_epoll_event_fd_offset=0])]) | |
691 | STRUCT_EPOLL_EVENT_FD_OFFSET=${libgo_cv_c_epoll_event_fd_offset} | |
692 | AC_SUBST(STRUCT_EPOLL_EVENT_FD_OFFSET) | |
693 | ||
476013d6 | 694 | dnl Check if <sys/stat.h> uses timespec_t for st_?tim members. Introduced |
082fc7e8 | 695 | dnl in Solaris 11.4 for XPG7 compatibility. |
476013d6 ILT |
696 | AC_EGREP_HEADER([timespec_t.*st_atim], [sys/stat.h], |
697 | [have_stat_timespec=yes], [have_stat_timespec=no]) | |
698 | AM_CONDITIONAL(HAVE_STAT_TIMESPEC, test $have_stat_timespec = yes) | |
699 | ||
d2b480bc ILT |
700 | dnl See if struct exception is defined in <math.h>. |
701 | AC_CHECK_TYPE([struct exception], | |
702 | [libgo_has_struct_exception=yes], | |
703 | [libgo_has_struct_exception=no], | |
704 | [#include <math.h>]) | |
705 | if test "$libgo_has_struct_exception" = "yes"; then | |
706 | AC_DEFINE(HAVE_STRUCT_EXCEPTION, 1, | |
707 | [Define to 1 if <math.h> defines struct exception]) | |
708 | fi | |
709 | ||
7f57843f ILT |
710 | dnl See whether setcontext changes the value of TLS variables. |
711 | AC_CACHE_CHECK([whether setcontext clobbers TLS variables], | |
712 | [libgo_cv_lib_setcontext_clobbers_tls], | |
e6c5817d ILT |
713 | [CFLAGS_hold="$CFLAGS" |
714 | CFLAGS="$PTHREAD_CFLAGS" | |
715 | LIBS_hold="$LIBS" | |
7f57843f | 716 | LIBS="$LIBS $PTHREAD_LIBS" |
e6c5817d ILT |
717 | AC_CHECK_SIZEOF([void *]) |
718 | AS_VAR_ARITH([ptr_type_size], [$ac_cv_sizeof_void_p \* 8]) | |
7f57843f ILT |
719 | AC_RUN_IFELSE( |
720 | [AC_LANG_SOURCE([ | |
721 | #include <pthread.h> | |
722 | #include <stdlib.h> | |
723 | #include <ucontext.h> | |
724 | #include <unistd.h> | |
725 | ||
726 | __thread int tls; | |
727 | ||
728 | static char stack[[10 * 1024 * 1024]]; | |
729 | static ucontext_t c; | |
730 | ||
731 | /* Called via makecontext/setcontext. */ | |
732 | ||
733 | static void | |
734 | cfn (void) | |
735 | { | |
736 | exit (tls); | |
737 | } | |
738 | ||
739 | /* Called via pthread_create. */ | |
740 | ||
741 | static void * | |
742 | tfn (void *dummy) | |
743 | { | |
744 | /* The thread should still see this value after calling | |
745 | setcontext. */ | |
746 | tls = 0; | |
747 | ||
748 | setcontext (&c); | |
749 | ||
750 | /* The call to setcontext should not return. */ | |
751 | abort (); | |
752 | } | |
753 | ||
754 | int | |
755 | main () | |
756 | { | |
757 | pthread_t tid; | |
758 | ||
759 | /* The thread should not see this value. */ | |
760 | tls = 1; | |
761 | ||
762 | if (getcontext (&c) < 0) | |
763 | abort (); | |
764 | ||
765 | c.uc_stack.ss_sp = stack; | |
ca59d219 ILT |
766 | #ifdef MAKECONTEXT_STACK_TOP |
767 | c.uc_stack.ss_sp += sizeof stack; | |
768 | #endif | |
7f57843f ILT |
769 | c.uc_stack.ss_flags = 0; |
770 | c.uc_stack.ss_size = sizeof stack; | |
771 | c.uc_link = NULL; | |
772 | makecontext (&c, cfn, 0); | |
773 | ||
774 | if (pthread_create (&tid, NULL, tfn, NULL) != 0) | |
775 | abort (); | |
776 | ||
777 | if (pthread_join (tid, NULL) != 0) | |
778 | abort (); | |
779 | ||
780 | /* The thread should have called exit. */ | |
781 | abort (); | |
782 | } | |
783 | ])], | |
784 | [libgo_cv_lib_setcontext_clobbers_tls=no], | |
785 | [libgo_cv_lib_setcontext_clobbers_tls=yes], | |
e6c5817d ILT |
786 | [case "$target:$ptr_type_size" in |
787 | i?86-*-solaris2.1[[01]]:64 | x86_64*-*-solaris2.1[[01]]:64) | |
788 | libgo_cv_lib_setcontext_clobbers_tls=yes ;; | |
789 | *) | |
790 | libgo_cv_lib_setcontext_clobbers_tls=no ;; | |
7f57843f ILT |
791 | esac |
792 | ]) | |
e6c5817d | 793 | CFLAGS="$CFLAGS_hold" |
7f57843f ILT |
794 | LIBS="$LIBS_hold" |
795 | ]) | |
796 | if test "$libgo_cv_lib_setcontext_clobbers_tls" = "yes"; then | |
797 | AC_DEFINE(SETCONTEXT_CLOBBERS_TLS, 1, | |
798 | [Define if setcontext clobbers TLS variables]) | |
799 | fi | |
800 | ||
cc1a9ac8 ILT |
801 | AC_CACHE_CHECK([whether .eh_frame section should be read-only], |
802 | libgo_cv_ro_eh_frame, [ | |
803 | libgo_cv_ro_eh_frame=no | |
804 | echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c | |
805 | if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then | |
806 | if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then | |
807 | libgo_cv_ro_eh_frame=yes | |
808 | elif grep '.section.*eh_frame.*#alloc' conftest.c \ | |
809 | | grep -v '#write' > /dev/null; then | |
810 | libgo_cv_ro_eh_frame=yes | |
811 | fi | |
812 | fi | |
813 | rm -f conftest.* | |
814 | ]) | |
815 | if test "x$libgo_cv_ro_eh_frame" = xyes; then | |
816 | AC_DEFINE(EH_FRAME_FLAGS, "a", | |
817 | [Define to the flags needed for the .section .eh_frame directive.]) | |
818 | else | |
819 | AC_DEFINE(EH_FRAME_FLAGS, "aw", | |
820 | [Define to the flags needed for the .section .eh_frame directive.]) | |
821 | fi | |
822 | ||
a819231d ILT |
823 | AC_CACHE_CHECK([if compiler supports -Qunused-arguments], |
824 | [libgo_cv_c_unused_arguments], | |
825 | [CFLAGS_hold=$CFLAGS | |
826 | CFLAGS="$CFLAGS -Qunused-arguments" | |
73b6d7a9 | 827 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
a819231d ILT |
828 | [libgo_cv_c_unused_arguments=yes], |
829 | [libgo_cv_c_unused_arguments=no]) | |
830 | CFLAGS=$CFLAGS_hold]) | |
831 | ||
cc1a9ac8 ILT |
832 | AC_CACHE_CHECK([if assembler supports GNU comdat group syntax], |
833 | libgo_cv_as_comdat_gnu, [ | |
834 | echo '.section .text,"axG",@progbits,.foo,comdat' > conftest.s | |
a819231d ILT |
835 | CFLAGS_hold=$CFLAGS |
836 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
837 | CFLAGS="$CFLAGS -Qunused-arguments" | |
838 | fi | |
cc1a9ac8 ILT |
839 | if $CC $CFLAGS -c conftest.s > /dev/null 2>&1; then |
840 | libgo_cv_as_comdat_gnu=yes | |
841 | else | |
842 | libgo_cv_as_comdat_gnu=no | |
843 | fi | |
a819231d | 844 | CFLAGS=$CFLAGS_hold |
cc1a9ac8 ILT |
845 | ]) |
846 | if test "x$libgo_cv_as_comdat_gnu" = xyes; then | |
847 | AC_DEFINE(HAVE_AS_COMDAT_GAS, 1, | |
848 | [Define if your assembler supports GNU comdat group syntax.]) | |
849 | fi | |
850 | ||
851 | AC_CACHE_CHECK([assembler supports pc related relocs], | |
852 | libgo_cv_as_x86_pcrel, [ | |
853 | libgo_cv_as_x86_pcrel=yes | |
854 | echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s | |
a819231d ILT |
855 | CFLAGS_hold=$CFLAGS |
856 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
857 | CFLAGS="$CFLAGS -Qunused-arguments" | |
858 | fi | |
cc1a9ac8 ILT |
859 | if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then |
860 | libgo_cv_as_x86_pcrel=no | |
861 | fi | |
a819231d | 862 | CFLAGS=$CFLAGS_hold |
cc1a9ac8 ILT |
863 | ]) |
864 | if test "x$libgo_cv_as_x86_pcrel" = xyes; then | |
865 | AC_DEFINE(HAVE_AS_X86_PCREL, 1, | |
866 | [Define if your assembler supports PC relative relocs.]) | |
867 | fi | |
868 | ||
869 | AC_CACHE_CHECK([assembler supports unwind section type], | |
870 | libgo_cv_as_x86_64_unwind_section_type, [ | |
871 | libgo_cv_as_x86_64_unwind_section_type=yes | |
872 | echo '.section .eh_frame,"a",@unwind' > conftest.s | |
a819231d ILT |
873 | CFLAGS_hold=$CFLAGS |
874 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
875 | CFLAGS="$CFLAGS -Qunused-arguments" | |
876 | fi | |
cc1a9ac8 ILT |
877 | if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then |
878 | libgo_cv_as_x86_64_unwind_section_type=no | |
879 | fi | |
a819231d | 880 | CFLAGS=$CFLAGS_hold |
cc1a9ac8 ILT |
881 | ]) |
882 | if test "x$libgo_cv_as_x86_64_unwind_section_type" = xyes; then | |
883 | AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1, | |
884 | [Define if your assembler supports unwind section type.]) | |
885 | fi | |
886 | ||
b379f8d8 ILT |
887 | AC_CACHE_CHECK([assembler supports AES instructions], |
888 | libgo_cv_as_x86_aes, [ | |
889 | libgo_cv_as_x86_aes=yes | |
890 | echo 'aesenc %xmm0, %xmm1' > conftest.s | |
891 | CFLAGS_hold=$CFLAGS | |
892 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
893 | CFLAGS="$CFLAGS -Qunused-arguments" | |
894 | fi | |
895 | if $CC $CFLAGS -c conftest.s 2>&1 | grep -i error > /dev/null; then | |
896 | libgo_cv_as_x86_aes=no | |
897 | fi | |
898 | CFLAGS=$CFLAGS_hold | |
899 | ]) | |
900 | if test "x$libgo_cv_as_x86_aes" = xyes; then | |
901 | AC_DEFINE(HAVE_AS_X86_AES, 1, | |
902 | [Define if your assembler supports AES instructions.]) | |
903 | fi | |
904 | ||
e478cacb ILT |
905 | dnl Test whether the linker supports the -static option. |
906 | AC_CACHE_CHECK([whether -static is supported], | |
907 | [libgo_cv_ld_static], | |
908 | [LDFLAGS_hold=$LDFLAGS | |
909 | LDFLAGS="$LDFLAGS -static" | |
910 | AC_LINK_IFELSE([AC_LANG_PROGRAM(,)], | |
911 | [libgo_cv_ld_static=yes], | |
912 | [libgo_cv_ld_static=no]) | |
913 | LDFLAGS=$LDFLAGS_hold]) | |
914 | AM_CONDITIONAL(HAVE_STATIC_LINK, test "$libgo_cv_ld_static" = yes) | |
915 | ||
7a938933 ILT |
916 | AC_CACHE_SAVE |
917 | ||
918 | if test ${multilib} = yes; then | |
919 | multilib_arg="--enable-multilib" | |
920 | else | |
921 | multilib_arg= | |
922 | fi | |
923 | ||
b72813a6 | 924 | AC_CONFIG_FILES(Makefile testsuite/Makefile testsuite/libgo-test-support.exp) |
7a938933 ILT |
925 | |
926 | AC_CONFIG_COMMANDS([default], | |
927 | [if test -n "$CONFIG_FILES"; then | |
928 | # Multilibs need MULTISUBDIR defined correctly in certain makefiles so | |
929 | # that multilib installs will end up installed in the correct place. | |
930 | # The testsuite needs it for multilib-aware ABI baseline files. | |
931 | # To work around this not being passed down from config-ml.in -> | |
932 | # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually | |
933 | # append it here. Only modify Makefiles that have just been created. | |
934 | # | |
935 | # Also, get rid of this simulated-VPATH thing that automake does. | |
936 | cat > vpsed << \_EOF | |
937 | s!`test -f '$<' || echo '$(srcdir)/'`!! | |
938 | _EOF | |
939 | for i in $SUBDIRS; do | |
940 | case $CONFIG_FILES in | |
941 | *${i}/Makefile*) | |
942 | #echo "Adding MULTISUBDIR to $i/Makefile" | |
943 | sed -f vpsed $i/Makefile > tmp | |
944 | grep '^MULTISUBDIR =' Makefile >> tmp | |
945 | mv tmp $i/Makefile | |
946 | ;; | |
947 | esac | |
948 | done | |
949 | rm vpsed | |
950 | fi | |
951 | ], | |
952 | [ | |
953 | # Variables needed in config.status (file generation) which aren't already | |
954 | # passed by autoconf. | |
955 | SUBDIRS="$SUBDIRS" | |
956 | ]) | |
957 | ||
958 | AC_OUTPUT |