]>
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 | ||
a01dda3c | 13 | libtool_VERSION=18:0:0 |
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=${CC_FOR_BUILD:-gcc} |
58 | AC_SUBST(CC_FOR_BUILD) | |
59 | ||
de27caac ILT |
60 | AC_PROG_AWK |
61 | ||
7a938933 ILT |
62 | WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual' |
63 | AC_SUBST(WARN_FLAGS) | |
64 | ||
0d4668c1 ILT |
65 | AC_ARG_ENABLE(werror, [AS_HELP_STRING([--enable-werror], |
66 | [turns on -Werror @<:@default=yes@:>@])]) | |
67 | if test "x$enable_werror" != "xno"; then | |
68 | WERROR="-Werror" | |
69 | fi | |
7a938933 ILT |
70 | AC_SUBST(WERROR) |
71 | ||
72 | glibgo_toolexecdir=no | |
73 | glibgo_toolexeclibdir=no | |
7a938933 ILT |
74 | |
75 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
76 | AC_ARG_ENABLE([version-specific-runtime-libs], | |
77 | AC_HELP_STRING([--enable-version-specific-runtime-libs], | |
78 | [Specify that runtime libraries should be installed in a compiler-specific directory]), | |
79 | [case "$enableval" in | |
80 | yes) version_specific_libs=yes ;; | |
81 | no) version_specific_libs=no ;; | |
82 | *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; | |
83 | esac], | |
84 | [version_specific_libs=no]) | |
85 | AC_MSG_RESULT($version_specific_libs) | |
86 | ||
ba386bea ILT |
87 | GCC_WITH_TOOLEXECLIBDIR |
88 | ||
7a938933 ILT |
89 | # Version-specific runtime libs processing. |
90 | if test $version_specific_libs = yes; then | |
91 | glibgo_toolexecdir='${libdir}/gcc/${host_alias}' | |
92 | glibgo_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)' | |
93 | fi | |
94 | ||
95 | # Calculate glibgo_toolexecdir, glibgo_toolexeclibdir | |
96 | # Install a library built with a cross compiler in tooldir, not libdir. | |
317ea7c0 ILT |
97 | if test -n "$with_cross_host" && |
98 | test x"$with_cross_host" != x"no"; then | |
99 | nover_glibgo_toolexecdir='${exec_prefix}/${host_alias}' | |
ba386bea ILT |
100 | case ${with_toolexeclibdir} in |
101 | no) | |
102 | nover_glibgo_toolexeclibdir='${toolexecdir}/lib' | |
103 | ;; | |
104 | *) | |
105 | nover_glibgo_toolexeclibdir=${with_toolexeclibdir} | |
106 | ;; | |
107 | esac | |
317ea7c0 ILT |
108 | else |
109 | nover_glibgo_toolexecdir='${libdir}/gcc/${host_alias}' | |
110 | nover_glibgo_toolexeclibdir='${libdir}' | |
111 | fi | |
6c76a95d | 112 | multi_os_directory=`$GOC -print-multi-os-directory` |
317ea7c0 ILT |
113 | case $multi_os_directory in |
114 | .) ;; # Avoid trailing /. | |
115 | *) nover_glibgo_toolexeclibdir=${nover_glibgo_toolexeclibdir}/${multi_os_directory} ;; | |
116 | esac | |
117 | ||
7a938933 | 118 | if test x"$glibgo_toolexecdir" = x"no"; then |
317ea7c0 ILT |
119 | glibgo_toolexecdir="${nover_glibgo_toolexecdir}" |
120 | glibgo_toolexeclibdir="${nover_glibgo_toolexeclibdir}" | |
7a938933 ILT |
121 | fi |
122 | ||
7a938933 ILT |
123 | AC_SUBST(glibgo_toolexecdir) |
124 | AC_SUBST(glibgo_toolexeclibdir) | |
317ea7c0 | 125 | AC_SUBST(nover_glibgo_toolexeclibdir) |
7a938933 ILT |
126 | |
127 | # See if the user wants to configure without libffi. Some | |
128 | # architectures don't support it. FIXME: We should set a default | |
129 | # based on the host. | |
130 | AC_ARG_WITH(libffi, | |
131 | AS_HELP_STRING([--without-libffi], | |
132 | [don't use libffi]), | |
133 | [:], | |
134 | [with_libffi=${with_libffi_default-yes}]) | |
135 | ||
136 | LIBFFI= | |
137 | LIBFFIINCS= | |
138 | if test "$with_libffi" != no; then | |
139 | AC_DEFINE(USE_LIBFFI, 1, [Define if we're to use libffi.]) | |
140 | LIBFFI=../libffi/libffi_convenience.la | |
141 | LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I../libffi/include' | |
142 | fi | |
143 | AC_SUBST(LIBFFI) | |
144 | AC_SUBST(LIBFFIINCS) | |
8b9cfd76 | 145 | AM_CONDITIONAL(USE_LIBFFI, test "$with_libffi" != "no") |
7a938933 | 146 | |
9a85ed03 ILT |
147 | # See if the user wants to configure without libatomic. This is useful if we are |
148 | # on an architecture for which libgo does not need an atomic support library and | |
149 | # libatomic does not support our C compiler. | |
150 | AC_ARG_WITH(libatomic, | |
151 | AS_HELP_STRING([--without-libatomic], | |
152 | [don't use libatomic]), | |
153 | [:], | |
154 | [with_libatomic=${with_libatomic_default-yes}]) | |
155 | ||
156 | LIBATOMIC= | |
157 | if test "$with_libatomic" != no; then | |
158 | LIBATOMIC=../libatomic/libatomic_convenience.la | |
159 | fi | |
160 | AC_SUBST(LIBATOMIC) | |
161 | ||
18c70075 ILT |
162 | # Used to tell GNU make to include a file without telling automake to |
163 | # include it. | |
164 | go_include="-include" | |
165 | AC_SUBST(go_include) | |
166 | ||
a8464243 ILT |
167 | # All known GOOS values. This is the union of all operating systems |
168 | # supported by the gofrontend and all operating systems supported by | |
169 | # the gc toolchain. | |
aa8901e9 | 170 | ALLGOOS="aix android darwin dragonfly freebsd hurd illumos irix js linux netbsd openbsd plan9 rtems solaris windows" |
a8464243 | 171 | |
7a938933 ILT |
172 | is_darwin=no |
173 | is_freebsd=no | |
654d2ec0 | 174 | is_irix=no |
7a938933 | 175 | is_linux=no |
1efa38d1 | 176 | is_netbsd=no |
4ccad563 | 177 | is_openbsd=no |
f038dae6 | 178 | is_dragonfly=no |
7a938933 | 179 | is_rtems=no |
f2ee78b8 | 180 | is_solaris=no |
f163907e | 181 | is_aix=no |
d9f0237f | 182 | is_hurd=no |
c3b5b97b | 183 | GOOS=unknown |
7a938933 | 184 | case ${host} in |
f2ee78b8 ILT |
185 | *-*-darwin*) is_darwin=yes; GOOS=darwin ;; |
186 | *-*-freebsd*) is_freebsd=yes; GOOS=freebsd ;; | |
654d2ec0 | 187 | *-*-irix6*) is_irix=yes; GOOS=irix ;; |
f2ee78b8 | 188 | *-*-linux*) is_linux=yes; GOOS=linux ;; |
df4aa89a | 189 | *-*-netbsd*) is_netbsd=yes; GOOS=netbsd ;; |
4ccad563 | 190 | *-*-openbsd*) is_openbsd=yes; GOOS=openbsd ;; |
f038dae6 | 191 | *-*-dragonfly*) is_dragonfly=yes; GOOS=dragonfly ;; |
f2ee78b8 ILT |
192 | *-*-rtems*) is_rtems=yes; GOOS=rtems ;; |
193 | *-*-solaris2*) is_solaris=yes; GOOS=solaris ;; | |
f163907e | 194 | *-*-aix*) is_aix=yes; GOOS=aix ;; |
d9f0237f | 195 | *-*-gnu*) is_hurd=yes; GOOS=hurd ;; |
7a938933 ILT |
196 | esac |
197 | AM_CONDITIONAL(LIBGO_IS_DARWIN, test $is_darwin = yes) | |
198 | AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = yes) | |
654d2ec0 | 199 | AM_CONDITIONAL(LIBGO_IS_IRIX, test $is_irix = yes) |
7a938933 | 200 | AM_CONDITIONAL(LIBGO_IS_LINUX, test $is_linux = yes) |
df4aa89a | 201 | AM_CONDITIONAL(LIBGO_IS_NETBSD, test $is_netbsd = yes) |
4ccad563 | 202 | AM_CONDITIONAL(LIBGO_IS_OPENBSD, test $is_openbsd = yes) |
824393bd | 203 | AM_CONDITIONAL(LIBGO_IS_DRAGONFLY, test $is_dragonfly = yes) |
7a938933 | 204 | AM_CONDITIONAL(LIBGO_IS_RTEMS, test $is_rtems = yes) |
f2ee78b8 | 205 | AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes) |
f163907e | 206 | AM_CONDITIONAL(LIBGO_IS_AIX, test $is_aix = yes) |
d9f0237f | 207 | AM_CONDITIONAL(LIBGO_IS_HURD, test $is_hurd = yes) |
22b955cc | 208 | 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 | 209 | AC_SUBST(GOOS) |
a8464243 | 210 | AC_SUBST(ALLGOOS) |
7a938933 | 211 | |
7134cf28 ILT |
212 | dnl Test whether we need to use DejaGNU or whether we can use the |
213 | dnl simpler gotest approach. We can only use gotest for a native | |
214 | dnl build. | |
215 | USE_DEJAGNU=no | |
216 | case ${host} in | |
217 | *-*-rtems*) USE_DEJAGNU=yes ;; | |
553752e1 | 218 | ${build}) ;; |
7134cf28 ILT |
219 | *) USE_DEJAGNU=yes ;; |
220 | esac | |
221 | AC_SUBST(USE_DEJAGNU) | |
222 | ||
a8464243 ILT |
223 | # All known GOARCH values. This is the union of all architectures |
224 | # supported by the gofrontend and all architectures supported by the | |
225 | # gc toolchain. | |
ffad1c54 ILT |
226 | # To add a new architecture: |
227 | # - add it to this list | |
228 | # - if appropriate, add an entry to ALLGOARCHFAMILY below | |
229 | # - add an entry to the case on ${host} below to set GOARCH | |
230 | # - update goarchList in libgo/go/go/build/syslist.go | |
231 | # - update goarch.sh to report the values for this architecture | |
232 | # - update go-set-goarch in gcc/testsuite/go.test/go-test.exp | |
233 | # - update ptrSizeMap and intSizeMap in libgo/go/cmd/cgo/main.go | |
234 | # - update arch lists in libgo/match.sh | |
235 | # - update arch lists in libgo/testsuite/gotest | |
236 | # - update +build lines in several places | |
237 | # - libgo/go/runtime/lfstack_NNbit.go | |
238 | # - libgo/go/runtime/hashNN.go | |
239 | # - libgo/go/runtime/unalignedN.go | |
240 | # - libgo/go/syscall/endian_XX.go | |
241 | # - possibly others | |
242 | # - possibly update files in libgo/go/internal/syscall/unix | |
87cbbc45 | 243 | 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 | 244 | |
ffad1c54 | 245 | # All known GOARCH family values. |
87cbbc45 | 246 | ALLGOARCHFAMILY="I386 ALPHA AMD64 ARM ARM64 IA64 M68K MIPS MIPS64 NIOS2 PPC PPC64 RISCV RISCV64 S390 S390X SH SPARC SPARC64 WASM" |
a8464243 | 247 | |
c3b5b97b | 248 | GOARCH=unknown |
7a938933 | 249 | case ${host} in |
e59b9171 | 250 | alpha*-*-*) |
e59b9171 ILT |
251 | GOARCH=alpha |
252 | ;; | |
71d0d50a | 253 | aarch64-*-*) |
71d0d50a ILT |
254 | GOARCH=arm64 |
255 | ;; | |
9961856c ILT |
256 | aarch64_be-*-*) |
257 | GOARCH=arm64be | |
258 | ;; | |
ca11cc98 | 259 | arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*) |
ca11cc98 | 260 | GOARCH=arm |
1a2f01ef ILT |
261 | case ${host} in |
262 | arm*b*-*-*) | |
263 | GOARCH=armbe | |
1a2f01ef ILT |
264 | ;; |
265 | esac | |
ca11cc98 | 266 | ;; |
7a938933 | 267 | changequote(,)dnl |
c3b5b97b | 268 | i[34567]86-*-* | x86_64-*-*) |
7a938933 | 269 | changequote([,])dnl |
73b6d7a9 | 270 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
c3b5b97b ILT |
271 | #ifdef __x86_64__ |
272 | #error 64-bit | |
73b6d7a9 ILT |
273 | #endif |
274 | ])], | |
44ef0300 | 275 | [GOARCH=386], |
73b6d7a9 | 276 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
44ef0300 ILT |
277 | #ifdef __ILP32__ |
278 | #error x32 | |
73b6d7a9 ILT |
279 | #endif |
280 | ])], | |
44ef0300 ILT |
281 | [GOARCH=amd64], |
282 | [GOARCH=amd64p32])) | |
7a938933 | 283 | ;; |
4f8e688a | 284 | ia64-*-*) |
4f8e688a ILT |
285 | GOARCH=ia64 |
286 | ;; | |
ca11cc98 | 287 | m68k*-*-*) |
ca11cc98 ILT |
288 | GOARCH=m68k |
289 | ;; | |
290 | mips*-*-*) | |
73b6d7a9 | 291 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
85a09210 ILT |
292 | #if _MIPS_SIM != _ABIO32 |
293 | #error not o32 | |
73b6d7a9 ILT |
294 | #endif |
295 | ])], | |
85a09210 | 296 | [mips_abi="o32"], |
73b6d7a9 | 297 | [AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
85a09210 ILT |
298 | #if _MIPS_SIM != _ABIN32 |
299 | #error not n32 | |
73b6d7a9 ILT |
300 | #endif |
301 | ])], | |
85a09210 | 302 | [mips_abi="n32"], |
73b6d7a9 | 303 | [AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
85a09210 ILT |
304 | #if _MIPS_SIM != _ABI64 |
305 | #error not n64 | |
73b6d7a9 ILT |
306 | #endif |
307 | ])], | |
85a09210 | 308 | [mips_abi="n64"], |
85a09210 | 309 | [AC_MSG_ERROR([unknown MIPS ABI]) |
b95cd48b | 310 | [mips_abi="n32"]])])]) |
85a09210 | 311 | case "$mips_abi" in |
1701a9d8 ILT |
312 | "o32") GOARCH=mips ;; |
313 | "n32") GOARCH=mips64p32 ;; | |
314 | "n64") GOARCH=mips64 ;; | |
85a09210 | 315 | esac |
a8464243 | 316 | case "${host}" in |
1701a9d8 ILT |
317 | mips*el-*-*) |
318 | GOARCH="${GOARCH}le" | |
a8464243 | 319 | ;; |
a8464243 | 320 | esac |
ca11cc98 | 321 | ;; |
746d6ed4 ILT |
322 | nios2-*-*) |
323 | GOARCH=nios2 | |
324 | ;; | |
ca11cc98 | 325 | rs6000*-*-* | powerpc*-*-*) |
73b6d7a9 | 326 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
ca11cc98 ILT |
327 | #ifdef _ARCH_PPC64 |
328 | #error 64-bit | |
73b6d7a9 ILT |
329 | #endif |
330 | ])], | |
ffad1c54 | 331 | [GOARCH=ppc], |
a8464243 | 332 | [ |
73b6d7a9 | 333 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
6f7ccafa ILT |
334 | #if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__) |
335 | #error 64be | |
73b6d7a9 ILT |
336 | #endif |
337 | ])], | |
ffad1c54 ILT |
338 | [GOARCH=ppc64le], |
339 | [GOARCH=ppc64])]) | |
7a938933 | 340 | ;; |
2c5499b5 MR |
341 | riscv*-*-*) |
342 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ | |
343 | #if __riscv_xlen == 64 | |
344 | #error 64-bit | |
345 | #endif | |
346 | ])], | |
347 | [GOARCH=riscv], | |
348 | [GOARCH=riscv64]) | |
b613cc2e | 349 | ;; |
1fec5f52 | 350 | s390*-*-*) |
73b6d7a9 | 351 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
1fec5f52 ILT |
352 | #if defined(__s390x__) |
353 | #error 64-bit | |
73b6d7a9 ILT |
354 | #endif |
355 | ])], | |
ffad1c54 ILT |
356 | [GOARCH=s390], |
357 | [GOARCH=s390x]) | |
fd0c1dd1 | 358 | ;; |
ffad1c54 | 359 | sh3eb*-*-* | sh4eb*-*-*) |
fd0c1dd1 | 360 | GOARCH=shbe |
fd0c1dd1 | 361 | ;; |
ffad1c54 | 362 | sh3*-*-* | sh4*-*-*) |
fd0c1dd1 | 363 | GOARCH=sh |
fd0c1dd1 | 364 | ;; |
f2ee78b8 | 365 | sparc*-*-*) |
73b6d7a9 | 366 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
f2ee78b8 ILT |
367 | #if defined(__sparcv9) || defined(__arch64__) |
368 | #error 64-bit | |
73b6d7a9 ILT |
369 | #endif |
370 | ])], | |
ffad1c54 ILT |
371 | [GOARCH=sparc], |
372 | [GOARCH=sparc64]) | |
f2ee78b8 | 373 | ;; |
7a938933 | 374 | esac |
c3b5b97b | 375 | AC_SUBST(GOARCH) |
a8464243 ILT |
376 | AC_SUBST(ALLGOARCH) |
377 | AC_SUBST(ALLGOARCHFAMILY) | |
7a938933 | 378 | |
de0f55db ILT |
379 | AM_CONDITIONAL(LIBGO_IS_X86, test "$GOARCH" = "386" -o "$GOARCH" = "amd64" -o "$GOARCH" = "amd64p32") |
380 | ||
cba8a572 ILT |
381 | FUNCTION_DESCRIPTORS=false |
382 | case ${host} in | |
383 | rs6000*-*-* | powerpc*-*-*) | |
384 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ | |
385 | #if _CALL_ELF == 1 | |
386 | #error descriptors | |
387 | #endif | |
388 | ])], | |
389 | [FUNCTION_DESCRIPTORS=false], | |
390 | [FUNCTION_DESCRIPTORS=true]) | |
391 | ;; | |
392 | esac | |
393 | AC_SUBST(FUNCTION_DESCRIPTORS) | |
394 | ||
ca11cc98 | 395 | dnl Some files are only present when needed for specific architectures. |
de27caac ILT |
396 | GO_LIBCALL_OS_FILE= |
397 | GO_LIBCALL_OS_ARCH_FILE= | |
398 | GO_SYSCALL_OS_FILE= | |
399 | GO_SYSCALL_OS_ARCH_FILE= | |
204b9fc2 ILT |
400 | if test -f "${srcdir}/go/syscall/libcall_${GOOS}.go"; then |
401 | GO_LIBCALL_OS_FILE="go/syscall/libcall_${GOOS}.go" | |
de27caac | 402 | fi |
204b9fc2 ILT |
403 | if test -f "${srcdir}/go/syscall/libcall_${GOOS}_${GOARCH}.go"; then |
404 | GO_LIBCALL_OS_ARCH_FILE="go/syscall/libcall_${GOOS}_${GOARCH}.go" | |
de27caac | 405 | fi |
204b9fc2 ILT |
406 | if test -f "${srcdir}/go/syscall/syscall_${GOOS}.go"; then |
407 | GO_SYSCALL_OS_FILE="go/syscall/syscall_${GOOS}.go" | |
de27caac | 408 | fi |
204b9fc2 ILT |
409 | if test -f "${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go"; then |
410 | GO_SYSCALL_OS_ARCH_FILE="go/syscall/syscall_${GOOS}_${GOARCH}.go" | |
ca11cc98 | 411 | fi |
de27caac ILT |
412 | AC_SUBST(GO_LIBCALL_OS_FILE) |
413 | AC_SUBST(GO_LIBCALL_OS_ARCH_FILE) | |
414 | AC_SUBST(GO_SYSCALL_OS_FILE) | |
415 | AC_SUBST(GO_SYSCALL_OS_ARCH_FILE) | |
ca11cc98 | 416 | |
d48be5df ILT |
417 | dnl Special flags used to generate sysinfo.go. |
418 | OSCFLAGS="-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" | |
90630d19 | 419 | case "$target" in |
9f3b1e6c ILT |
420 | mips-sgi-irix6.5*) |
421 | # IRIX 6 needs _XOPEN_SOURCE=500 for the XPG5 version of struct | |
422 | # msghdr in <sys/socket.h>. | |
d48be5df | 423 | OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500" |
9f3b1e6c | 424 | ;; |
93ee143d | 425 | *-*-solaris2.*) |
90630d19 | 426 | # Solaris 10+ needs this so struct msghdr gets the msg_control |
bbe847a1 | 427 | # etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as |
90630d19 | 428 | # above doesn't work with C99. |
bbe847a1 | 429 | OSCFLAGS="$OSCFLAGS -std=gnu99 -D_XOPEN_SOURCE=600 -D__EXTENSIONS__" |
90630d19 ILT |
430 | ;; |
431 | esac | |
432 | AC_SUBST(OSCFLAGS) | |
433 | ||
08934aed ILT |
434 | dnl Check if assembler supports disabling hardware capability support. |
435 | GCC_CHECK_ASSEMBLER_HWCAP | |
c3c54e0f | 436 | |
7a938933 ILT |
437 | dnl Use -fsplit-stack when compiling C code if available. |
438 | AC_CACHE_CHECK([whether -fsplit-stack is supported], | |
f2ee78b8 | 439 | [libgo_cv_c_split_stack_supported], |
7a938933 ILT |
440 | [CFLAGS_hold=$CFLAGS |
441 | CFLAGS="$CFLAGS -fsplit-stack" | |
73b6d7a9 | 442 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
f2ee78b8 ILT |
443 | [libgo_cv_c_split_stack_supported=yes], |
444 | [libgo_cv_c_split_stack_supported=no]) | |
7a938933 | 445 | CFLAGS=$CFLAGS_hold]) |
c33c18cd ILT |
446 | |
447 | dnl Make sure the linker permits -fsplit-stack. Old versions of gold will | |
448 | dnl reject split-stack code calling non-split-stack code on targets | |
449 | dnl they don't support. | |
450 | AC_CACHE_CHECK([whether linker supports split/non-split linked together], | |
451 | [libgo_cv_c_linker_split_non_split], | |
452 | [cat > conftest1.c << EOF | |
453 | extern void f(); | |
454 | int main() { f(); return 0; } | |
455 | EOF | |
456 | cat > conftest2.c << EOF | |
457 | void f() {} | |
458 | EOF | |
207f844e ILT |
459 | $CC -c -fsplit-stack $CFLAGS $CPPFLAGS conftest1.c >/dev/null 2>&1 |
460 | $CC -c $CFLAGS $CPPFLAGS conftest2.c > /dev/null 2>&1 | |
461 | if $CC -o conftest conftest1.$ac_objext conftest2.$ac_objext > /dev/null 2>&1; then | |
c33c18cd ILT |
462 | libgo_cv_c_linker_split_non_split=yes |
463 | else | |
464 | libgo_cv_c_linker_split_non_split=no | |
465 | fi | |
466 | rm -f conftest1.* conftest2.* conftest]) | |
467 | ||
468 | if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes; then | |
7a938933 ILT |
469 | SPLIT_STACK=-fsplit-stack |
470 | AC_DEFINE(USING_SPLIT_STACK, 1, | |
471 | [Define if the compiler supports -fsplit-stack]) | |
472 | else | |
473 | SPLIT_STACK= | |
474 | fi | |
475 | AC_SUBST(SPLIT_STACK) | |
476 | AM_CONDITIONAL(USING_SPLIT_STACK, | |
c33c18cd | 477 | test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes) |
7a938933 | 478 | |
a2bf11d1 ILT |
479 | dnl If the compiler supports split-stack but the linker does not, then |
480 | dnl we need to explicitly disable split-stack for Go. | |
481 | if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = no; then | |
482 | GO_SPLIT_STACK=-fno-split-stack | |
483 | else | |
484 | GO_SPLIT_STACK= | |
485 | fi | |
486 | AC_SUBST(GO_SPLIT_STACK) | |
487 | ||
7a938933 ILT |
488 | dnl Check whether the linker does stack munging when calling from |
489 | dnl split-stack into non-split-stack code. We check this by looking | |
490 | dnl at the --help output. FIXME: This is only half right: it's | |
491 | dnl possible for the linker to support this for some targets but not | |
492 | dnl others. | |
c33c18cd ILT |
493 | dnl This is slightly different from the above check, which is whether |
494 | dnl the linker permits the call at all. | |
7a938933 | 495 | AC_CACHE_CHECK([whether linker supports split stack], |
f2ee78b8 | 496 | [libgo_cv_c_linker_supports_split_stack], |
f56c5dd1 ILT |
497 | [libgo_cv_c_linker_supports_split_stack=no |
498 | if $GOC -Wl,--help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then | |
f2ee78b8 | 499 | libgo_cv_c_linker_supports_split_stack=yes |
f56c5dd1 | 500 | fi]) |
f2ee78b8 | 501 | if test "$libgo_cv_c_linker_supports_split_stack" = yes; then |
7a938933 ILT |
502 | AC_DEFINE(LINKER_SUPPORTS_SPLIT_STACK, 1, |
503 | [Define if the linker support split stack adjustments]) | |
504 | fi | |
505 | ||
4c46b5f0 ILT |
506 | AC_CACHE_CHECK([whether compiler is llgo], |
507 | [libgo_cv_c_goc_is_llgo], | |
508 | [libgo_cv_c_goc_is_llgo=no | |
509 | if $GOC -dumpversion 2>/dev/null | grep llgo >/dev/null 2>&1; then | |
510 | libgo_cv_c_goc_is_llgo=yes | |
511 | fi]) | |
512 | AM_CONDITIONAL(GOC_IS_LLGO, test "$libgo_cv_c_goc_is_llgo" = yes) | |
513 | ||
505b439a ILT |
514 | dnl Test for the -lm library. |
515 | MATH_LIBS= | |
516 | AC_CHECK_LIB([m], [sqrt], MATH_LIBS=-lm) | |
517 | AC_SUBST(MATH_LIBS) | |
518 | ||
f2ee78b8 ILT |
519 | dnl Test for -lsocket and -lnsl. Copied from libjava/configure.ac. |
520 | AC_CACHE_CHECK([for socket libraries], libgo_cv_lib_sockets, | |
521 | [libgo_cv_lib_sockets= | |
522 | libgo_check_both=no | |
523 | AC_CHECK_FUNC(connect, libgo_check_socket=no, libgo_check_socket=yes) | |
524 | if test "$libgo_check_socket" = "yes"; then | |
525 | unset ac_cv_func_connect | |
526 | AC_CHECK_LIB(socket, main, libgo_cv_lib_sockets="-lsocket", | |
527 | libgo_check_both=yes) | |
528 | fi | |
529 | if test "$libgo_check_both" = "yes"; then | |
530 | libgo_old_libs=$LIBS | |
531 | LIBS="$LIBS -lsocket -lnsl" | |
532 | unset ac_cv_func_accept | |
533 | AC_CHECK_FUNC(accept, | |
534 | [libgo_check_nsl=no | |
535 | libgo_cv_lib_sockets="-lsocket -lnsl"]) | |
536 | unset ac_cv_func_accept | |
537 | LIBS=$libgo_old_libs | |
538 | fi | |
539 | unset ac_cv_func_gethostbyname | |
540 | libgo_old_libs="$LIBS" | |
541 | AC_CHECK_FUNC(gethostbyname, , | |
542 | [AC_CHECK_LIB(nsl, main, | |
543 | [libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lnsl"])]) | |
544 | unset ac_cv_func_gethostbyname | |
88cf4de8 ILT |
545 | AC_CHECK_FUNC(sendfile, , |
546 | [AC_CHECK_LIB(sendfile, main, | |
547 | [libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lsendfile"])]) | |
f2ee78b8 ILT |
548 | LIBS=$libgo_old_libs |
549 | ]) | |
550 | NET_LIBS="$libgo_cv_lib_sockets" | |
551 | AC_SUBST(NET_LIBS) | |
552 | ||
6c94a9fa ILT |
553 | dnl Test whether the compiler supports the -pthread option. |
554 | AC_CACHE_CHECK([whether -pthread is supported], | |
f2ee78b8 | 555 | [libgo_cv_lib_pthread], |
6c94a9fa | 556 | [CFLAGS_hold=$CFLAGS |
35e7db41 | 557 | CFLAGS="$CFLAGS -pthread -L../libatomic/.libs" |
73b6d7a9 | 558 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
f2ee78b8 ILT |
559 | [libgo_cv_lib_pthread=yes], |
560 | [libgo_cv_lib_pthread=no]) | |
6c94a9fa ILT |
561 | CFLAGS=$CFLAGS_hold]) |
562 | PTHREAD_CFLAGS= | |
f2ee78b8 | 563 | if test "$libgo_cv_lib_pthread" = yes; then |
35e7db41 ILT |
564 | # RISC-V apparently adds -latomic when using -pthread. |
565 | PTHREAD_CFLAGS="-pthread -L../libatomic/.libs" | |
6c94a9fa ILT |
566 | fi |
567 | AC_SUBST(PTHREAD_CFLAGS) | |
568 | ||
569 | dnl Test for the -lpthread library. | |
570 | PTHREAD_LIBS= | |
571 | AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS=-lpthread) | |
572 | AC_SUBST(PTHREAD_LIBS) | |
573 | ||
bbbe8b33 | 574 | dnl Test if -lrt is required for sched_yield or nanosleep or clock_gettime. |
ed4ebabc | 575 | AC_SEARCH_LIBS([sched_yield], [rt]) |
ae135907 | 576 | AC_SEARCH_LIBS([nanosleep], [rt]) |
bbbe8b33 | 577 | AC_SEARCH_LIBS([clock_gettime], [rt]) |
ed4ebabc | 578 | |
7a938933 ILT |
579 | AC_C_BIGENDIAN |
580 | ||
581 | GCC_CHECK_UNWIND_GETIPINFO | |
582 | ||
0cdde1e7 | 583 | 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/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 |
584 | |
585 | AC_CHECK_HEADERS([netinet/icmp6.h], [], [], | |
586 | [#include <netinet/in.h> | |
587 | ]) | |
adb0401d | 588 | |
1410c222 | 589 | 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 |
590 | [#ifdef HAVE_SYS_SOCKET_H |
591 | #include <sys/socket.h> | |
592 | #endif | |
593 | ]) | |
594 | ||
7a938933 | 595 | AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes) |
8955c80a | 596 | |
d8ccfadb | 597 | AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv unsetenv dl_iterate_phdr memmem) |
8955c80a | 598 | AM_CONDITIONAL(HAVE_STRERROR_R, test "$ac_cv_func_strerror_r" = yes) |
0b3189e7 | 599 | AM_CONDITIONAL(HAVE_WAIT4, test "$ac_cv_func_wait4" = yes) |
7a938933 | 600 | |
f163907e | 601 | AC_CHECK_FUNCS(accept4 dup3 epoll_create1 faccessat fallocate fchmodat fchownat futimesat getxattr inotify_add_watch inotify_init inotify_init1 inotify_rm_watch listxattr mkdirat mknodat open64 openat pipe2 removexattr renameat setxattr sync_file_range splice syscall tee unlinkat unshare utimensat) |
5d46bf05 | 602 | AC_TYPE_OFF_T |
e02ed81e ILT |
603 | AC_CHECK_TYPES([loff_t]) |
604 | ||
324612b3 ILT |
605 | LIBS_hold="$LIBS" |
606 | LIBS="$LIBS -lm" | |
607 | AC_CHECK_FUNCS(cosl expl logl sinl tanl acosl asinl atanl atan2l expm1l ldexpl log10l log1pl) | |
608 | LIBS="$LIBS_hold" | |
609 | ||
08ee945e ILT |
610 | CFLAGS_hold="$CFLAGS" |
611 | CFLAGS="$CFLAGS $PTHREAD_CFLAGS" | |
612 | LIBS_hold="$LIBS" | |
613 | LIBS="$LIBS $PTHREAD_LIBS" | |
614 | AC_CHECK_FUNCS(sem_timedwait) | |
615 | CFLAGS="$CFLAGS_hold" | |
616 | LIBS="$LIBS_hold" | |
617 | ||
d2b480bc ILT |
618 | LIBS_hold="$LIBS" |
619 | LIBS="$LIBS $MATH_LIBS" | |
620 | AC_CHECK_FUNCS(matherr) | |
621 | LIBS="$LIBS_hold" | |
622 | ||
7a938933 ILT |
623 | dnl For x86 we want to use the -minline-all-stringops option to avoid |
624 | dnl forcing a stack split when calling memcpy and friends. | |
625 | AC_CACHE_CHECK([whether compiler supports -minline-all-stringops], | |
f2ee78b8 | 626 | [libgo_cv_c_stringops], |
7a938933 ILT |
627 | [CFLAGS_hold=$CFLAGS |
628 | CFLAGS="$CFLAGS -minline-all-stringops" | |
73b6d7a9 | 629 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
f2ee78b8 ILT |
630 | [libgo_cv_c_stringops=yes], |
631 | [libgo_cv_c_stringops=no]) | |
7a938933 ILT |
632 | CFLAGS=$CFLAGS_hold]) |
633 | STRINGOPS_FLAG= | |
f2ee78b8 | 634 | if test "$libgo_cv_c_stringops" = yes; then |
7a938933 ILT |
635 | STRINGOPS_FLAG=-minline-all-stringops |
636 | fi | |
637 | AC_SUBST(STRINGOPS_FLAG) | |
638 | ||
9d465faf | 639 | dnl For x86 we want to compile the math library with -mfancy-math-387 |
28f3c814 | 640 | dnl so that we can use the builtin instructions directly. |
9d465faf ILT |
641 | AC_CACHE_CHECK([whether compiler supports -mfancy-math-387], |
642 | [libgo_cv_c_fancymath], | |
643 | [CFLAGS_hold=$CFLAGS | |
644 | CFLAGS="$CFLAGS -mfancy-math-387" | |
73b6d7a9 | 645 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
9d465faf ILT |
646 | [libgo_cv_c_fancymath=yes], |
647 | [libgo_cv_c_fancymath=no]) | |
648 | CFLAGS=$CFLAGS_hold]) | |
649 | MATH_FLAG= | |
650 | if test "$libgo_cv_c_fancymath" = yes; then | |
28f3c814 | 651 | MATH_FLAG="-mfancy-math-387" |
9d465faf | 652 | fi |
28f3c814 | 653 | MATH_FLAG="${MATH_FLAG} -ffp-contract=off -fno-math-errno -fno-trapping-math" |
9d465faf ILT |
654 | AC_SUBST(MATH_FLAG) |
655 | ||
7a938933 ILT |
656 | CFLAGS_hold=$CFLAGS |
657 | CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE" | |
e02ed81e | 658 | AC_CHECK_TYPES([off64_t]) |
7a938933 ILT |
659 | CFLAGS=$CFLAGS_hold |
660 | ||
207c35fa ILT |
661 | dnl Work out the size of the epoll_events struct on GNU/Linux. |
662 | AC_CACHE_CHECK([epoll_event size], | |
663 | [libgo_cv_c_epoll_event_size], | |
664 | [AC_COMPUTE_INT(libgo_cv_c_epoll_event_size, | |
665 | [sizeof (struct epoll_event)], | |
666 | [#include <sys/epoll.h>], | |
667 | [libgo_cv_c_epoll_event_size=0])]) | |
668 | SIZEOF_STRUCT_EPOLL_EVENT=${libgo_cv_c_epoll_event_size} | |
669 | AC_SUBST(SIZEOF_STRUCT_EPOLL_EVENT) | |
670 | ||
671 | dnl Work out the offset of the fd field in the epoll_events struct on | |
672 | dnl GNU/Linux. | |
673 | AC_CACHE_CHECK([epoll_event data.fd offset], | |
674 | [libgo_cv_c_epoll_event_fd_offset], | |
675 | [AC_COMPUTE_INT(libgo_cv_c_epoll_event_fd_offset, | |
676 | [offsetof (struct epoll_event, data.fd)], | |
677 | [#include <stddef.h> | |
678 | #include <sys/epoll.h>], | |
679 | [libgo_cv_c_epoll_event_fd_offset=0])]) | |
680 | STRUCT_EPOLL_EVENT_FD_OFFSET=${libgo_cv_c_epoll_event_fd_offset} | |
681 | AC_SUBST(STRUCT_EPOLL_EVENT_FD_OFFSET) | |
682 | ||
476013d6 | 683 | dnl Check if <sys/stat.h> uses timespec_t for st_?tim members. Introduced |
082fc7e8 | 684 | dnl in Solaris 11.4 for XPG7 compatibility. |
476013d6 ILT |
685 | AC_EGREP_HEADER([timespec_t.*st_atim], [sys/stat.h], |
686 | [have_stat_timespec=yes], [have_stat_timespec=no]) | |
687 | AM_CONDITIONAL(HAVE_STAT_TIMESPEC, test $have_stat_timespec = yes) | |
688 | ||
d2b480bc ILT |
689 | dnl See if struct exception is defined in <math.h>. |
690 | AC_CHECK_TYPE([struct exception], | |
691 | [libgo_has_struct_exception=yes], | |
692 | [libgo_has_struct_exception=no], | |
693 | [#include <math.h>]) | |
694 | if test "$libgo_has_struct_exception" = "yes"; then | |
695 | AC_DEFINE(HAVE_STRUCT_EXCEPTION, 1, | |
696 | [Define to 1 if <math.h> defines struct exception]) | |
697 | fi | |
698 | ||
7f57843f ILT |
699 | dnl See whether setcontext changes the value of TLS variables. |
700 | AC_CACHE_CHECK([whether setcontext clobbers TLS variables], | |
701 | [libgo_cv_lib_setcontext_clobbers_tls], | |
e6c5817d ILT |
702 | [CFLAGS_hold="$CFLAGS" |
703 | CFLAGS="$PTHREAD_CFLAGS" | |
704 | LIBS_hold="$LIBS" | |
7f57843f | 705 | LIBS="$LIBS $PTHREAD_LIBS" |
e6c5817d ILT |
706 | AC_CHECK_SIZEOF([void *]) |
707 | AS_VAR_ARITH([ptr_type_size], [$ac_cv_sizeof_void_p \* 8]) | |
7f57843f ILT |
708 | AC_RUN_IFELSE( |
709 | [AC_LANG_SOURCE([ | |
710 | #include <pthread.h> | |
711 | #include <stdlib.h> | |
712 | #include <ucontext.h> | |
713 | #include <unistd.h> | |
714 | ||
715 | __thread int tls; | |
716 | ||
717 | static char stack[[10 * 1024 * 1024]]; | |
718 | static ucontext_t c; | |
719 | ||
720 | /* Called via makecontext/setcontext. */ | |
721 | ||
722 | static void | |
723 | cfn (void) | |
724 | { | |
725 | exit (tls); | |
726 | } | |
727 | ||
728 | /* Called via pthread_create. */ | |
729 | ||
730 | static void * | |
731 | tfn (void *dummy) | |
732 | { | |
733 | /* The thread should still see this value after calling | |
734 | setcontext. */ | |
735 | tls = 0; | |
736 | ||
737 | setcontext (&c); | |
738 | ||
739 | /* The call to setcontext should not return. */ | |
740 | abort (); | |
741 | } | |
742 | ||
743 | int | |
744 | main () | |
745 | { | |
746 | pthread_t tid; | |
747 | ||
748 | /* The thread should not see this value. */ | |
749 | tls = 1; | |
750 | ||
751 | if (getcontext (&c) < 0) | |
752 | abort (); | |
753 | ||
754 | c.uc_stack.ss_sp = stack; | |
ca59d219 ILT |
755 | #ifdef MAKECONTEXT_STACK_TOP |
756 | c.uc_stack.ss_sp += sizeof stack; | |
757 | #endif | |
7f57843f ILT |
758 | c.uc_stack.ss_flags = 0; |
759 | c.uc_stack.ss_size = sizeof stack; | |
760 | c.uc_link = NULL; | |
761 | makecontext (&c, cfn, 0); | |
762 | ||
763 | if (pthread_create (&tid, NULL, tfn, NULL) != 0) | |
764 | abort (); | |
765 | ||
766 | if (pthread_join (tid, NULL) != 0) | |
767 | abort (); | |
768 | ||
769 | /* The thread should have called exit. */ | |
770 | abort (); | |
771 | } | |
772 | ])], | |
773 | [libgo_cv_lib_setcontext_clobbers_tls=no], | |
774 | [libgo_cv_lib_setcontext_clobbers_tls=yes], | |
e6c5817d ILT |
775 | [case "$target:$ptr_type_size" in |
776 | i?86-*-solaris2.1[[01]]:64 | x86_64*-*-solaris2.1[[01]]:64) | |
777 | libgo_cv_lib_setcontext_clobbers_tls=yes ;; | |
778 | *) | |
779 | libgo_cv_lib_setcontext_clobbers_tls=no ;; | |
7f57843f ILT |
780 | esac |
781 | ]) | |
e6c5817d | 782 | CFLAGS="$CFLAGS_hold" |
7f57843f ILT |
783 | LIBS="$LIBS_hold" |
784 | ]) | |
785 | if test "$libgo_cv_lib_setcontext_clobbers_tls" = "yes"; then | |
786 | AC_DEFINE(SETCONTEXT_CLOBBERS_TLS, 1, | |
787 | [Define if setcontext clobbers TLS variables]) | |
788 | fi | |
789 | ||
cc1a9ac8 ILT |
790 | AC_CACHE_CHECK([whether .eh_frame section should be read-only], |
791 | libgo_cv_ro_eh_frame, [ | |
792 | libgo_cv_ro_eh_frame=no | |
793 | echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c | |
794 | if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then | |
795 | if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then | |
796 | libgo_cv_ro_eh_frame=yes | |
797 | elif grep '.section.*eh_frame.*#alloc' conftest.c \ | |
798 | | grep -v '#write' > /dev/null; then | |
799 | libgo_cv_ro_eh_frame=yes | |
800 | fi | |
801 | fi | |
802 | rm -f conftest.* | |
803 | ]) | |
804 | if test "x$libgo_cv_ro_eh_frame" = xyes; then | |
805 | AC_DEFINE(EH_FRAME_FLAGS, "a", | |
806 | [Define to the flags needed for the .section .eh_frame directive.]) | |
807 | else | |
808 | AC_DEFINE(EH_FRAME_FLAGS, "aw", | |
809 | [Define to the flags needed for the .section .eh_frame directive.]) | |
810 | fi | |
811 | ||
a819231d ILT |
812 | AC_CACHE_CHECK([if compiler supports -Qunused-arguments], |
813 | [libgo_cv_c_unused_arguments], | |
814 | [CFLAGS_hold=$CFLAGS | |
815 | CFLAGS="$CFLAGS -Qunused-arguments" | |
73b6d7a9 | 816 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
a819231d ILT |
817 | [libgo_cv_c_unused_arguments=yes], |
818 | [libgo_cv_c_unused_arguments=no]) | |
819 | CFLAGS=$CFLAGS_hold]) | |
820 | ||
cc1a9ac8 ILT |
821 | AC_CACHE_CHECK([if assembler supports GNU comdat group syntax], |
822 | libgo_cv_as_comdat_gnu, [ | |
823 | echo '.section .text,"axG",@progbits,.foo,comdat' > conftest.s | |
a819231d ILT |
824 | CFLAGS_hold=$CFLAGS |
825 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
826 | CFLAGS="$CFLAGS -Qunused-arguments" | |
827 | fi | |
cc1a9ac8 ILT |
828 | if $CC $CFLAGS -c conftest.s > /dev/null 2>&1; then |
829 | libgo_cv_as_comdat_gnu=yes | |
830 | else | |
831 | libgo_cv_as_comdat_gnu=no | |
832 | fi | |
a819231d | 833 | CFLAGS=$CFLAGS_hold |
cc1a9ac8 ILT |
834 | ]) |
835 | if test "x$libgo_cv_as_comdat_gnu" = xyes; then | |
836 | AC_DEFINE(HAVE_AS_COMDAT_GAS, 1, | |
837 | [Define if your assembler supports GNU comdat group syntax.]) | |
838 | fi | |
839 | ||
840 | AC_CACHE_CHECK([assembler supports pc related relocs], | |
841 | libgo_cv_as_x86_pcrel, [ | |
842 | libgo_cv_as_x86_pcrel=yes | |
843 | echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s | |
a819231d ILT |
844 | CFLAGS_hold=$CFLAGS |
845 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
846 | CFLAGS="$CFLAGS -Qunused-arguments" | |
847 | fi | |
cc1a9ac8 ILT |
848 | if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then |
849 | libgo_cv_as_x86_pcrel=no | |
850 | fi | |
a819231d | 851 | CFLAGS=$CFLAGS_hold |
cc1a9ac8 ILT |
852 | ]) |
853 | if test "x$libgo_cv_as_x86_pcrel" = xyes; then | |
854 | AC_DEFINE(HAVE_AS_X86_PCREL, 1, | |
855 | [Define if your assembler supports PC relative relocs.]) | |
856 | fi | |
857 | ||
858 | AC_CACHE_CHECK([assembler supports unwind section type], | |
859 | libgo_cv_as_x86_64_unwind_section_type, [ | |
860 | libgo_cv_as_x86_64_unwind_section_type=yes | |
861 | echo '.section .eh_frame,"a",@unwind' > conftest.s | |
a819231d ILT |
862 | CFLAGS_hold=$CFLAGS |
863 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
864 | CFLAGS="$CFLAGS -Qunused-arguments" | |
865 | fi | |
cc1a9ac8 ILT |
866 | if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then |
867 | libgo_cv_as_x86_64_unwind_section_type=no | |
868 | fi | |
a819231d | 869 | CFLAGS=$CFLAGS_hold |
cc1a9ac8 ILT |
870 | ]) |
871 | if test "x$libgo_cv_as_x86_64_unwind_section_type" = xyes; then | |
872 | AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1, | |
873 | [Define if your assembler supports unwind section type.]) | |
874 | fi | |
875 | ||
b379f8d8 ILT |
876 | AC_CACHE_CHECK([assembler supports AES instructions], |
877 | libgo_cv_as_x86_aes, [ | |
878 | libgo_cv_as_x86_aes=yes | |
879 | echo 'aesenc %xmm0, %xmm1' > conftest.s | |
880 | CFLAGS_hold=$CFLAGS | |
881 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
882 | CFLAGS="$CFLAGS -Qunused-arguments" | |
883 | fi | |
884 | if $CC $CFLAGS -c conftest.s 2>&1 | grep -i error > /dev/null; then | |
885 | libgo_cv_as_x86_aes=no | |
886 | fi | |
887 | CFLAGS=$CFLAGS_hold | |
888 | ]) | |
889 | if test "x$libgo_cv_as_x86_aes" = xyes; then | |
890 | AC_DEFINE(HAVE_AS_X86_AES, 1, | |
891 | [Define if your assembler supports AES instructions.]) | |
892 | fi | |
893 | ||
e478cacb ILT |
894 | dnl Test whether the linker supports the -static option. |
895 | AC_CACHE_CHECK([whether -static is supported], | |
896 | [libgo_cv_ld_static], | |
897 | [LDFLAGS_hold=$LDFLAGS | |
898 | LDFLAGS="$LDFLAGS -static" | |
899 | AC_LINK_IFELSE([AC_LANG_PROGRAM(,)], | |
900 | [libgo_cv_ld_static=yes], | |
901 | [libgo_cv_ld_static=no]) | |
902 | LDFLAGS=$LDFLAGS_hold]) | |
903 | AM_CONDITIONAL(HAVE_STATIC_LINK, test "$libgo_cv_ld_static" = yes) | |
904 | ||
7a938933 ILT |
905 | AC_CACHE_SAVE |
906 | ||
907 | if test ${multilib} = yes; then | |
908 | multilib_arg="--enable-multilib" | |
909 | else | |
910 | multilib_arg= | |
911 | fi | |
912 | ||
b72813a6 | 913 | AC_CONFIG_FILES(Makefile testsuite/Makefile testsuite/libgo-test-support.exp) |
7a938933 ILT |
914 | |
915 | AC_CONFIG_COMMANDS([default], | |
916 | [if test -n "$CONFIG_FILES"; then | |
917 | # Multilibs need MULTISUBDIR defined correctly in certain makefiles so | |
918 | # that multilib installs will end up installed in the correct place. | |
919 | # The testsuite needs it for multilib-aware ABI baseline files. | |
920 | # To work around this not being passed down from config-ml.in -> | |
921 | # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually | |
922 | # append it here. Only modify Makefiles that have just been created. | |
923 | # | |
924 | # Also, get rid of this simulated-VPATH thing that automake does. | |
925 | cat > vpsed << \_EOF | |
926 | s!`test -f '$<' || echo '$(srcdir)/'`!! | |
927 | _EOF | |
928 | for i in $SUBDIRS; do | |
929 | case $CONFIG_FILES in | |
930 | *${i}/Makefile*) | |
931 | #echo "Adding MULTISUBDIR to $i/Makefile" | |
932 | sed -f vpsed $i/Makefile > tmp | |
933 | grep '^MULTISUBDIR =' Makefile >> tmp | |
934 | mv tmp $i/Makefile | |
935 | ;; | |
936 | esac | |
937 | done | |
938 | rm vpsed | |
939 | fi | |
940 | ], | |
941 | [ | |
942 | # Variables needed in config.status (file generation) which aren't already | |
943 | # passed by autoconf. | |
944 | SUBDIRS="$SUBDIRS" | |
945 | ]) | |
946 | ||
947 | AC_OUTPUT |