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e440a328 | 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 | ||
e440a328 | 9 | AC_INIT(package-unused, version-unused,, libgo) |
10 | AC_CONFIG_SRCDIR(Makefile.am) | |
11 | AC_CONFIG_HEADER(config.h) | |
12 | ||
31975c5e | 13 | libtool_VERSION=14:0:0 |
e440a328 | 14 | AC_SUBST(libtool_VERSION) |
15 | ||
16 | AM_ENABLE_MULTILIB(, ..) | |
17 | ||
18 | AC_CANONICAL_SYSTEM | |
19 | target_alias=${target_alias-$host_alias} | |
20 | ||
ea2e69a4 | 21 | AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dist subdir-objects -Wall -Wno-portability -Wno-override]) |
e440a328 | 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 | |
29 | m4_rename_force([glibgo_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) | |
30 | ||
31 | AC_SUBST(CFLAGS) | |
32 | ||
03118c21 | 33 | case ${host} in |
34 | *-*-aix*) | |
35 | # static hash tables crashes on AIX when libgo is built with O2 | |
36 | CFLAGS="$CFLAGS -fno-section-anchors" | |
37 | GOCFLAGS="$GOCFLAGS -fno-section-anchors" | |
38 | ;; | |
39 | esac | |
40 | ||
e440a328 | 41 | AM_MAINTAINER_MODE |
42 | ||
43 | AC_PROG_LD | |
44 | AC_PROG_RANLIB | |
45 | AC_CHECK_TOOL(OBJCOPY, objcopy, missing-objcopy) | |
46 | ||
47 | AC_LIBTOOL_DLOPEN | |
48 | AM_PROG_LIBTOOL | |
49 | AC_SUBST(enable_shared) | |
50 | AC_SUBST(enable_static) | |
51 | ||
a27e1015 | 52 | CC_FOR_BUILD=${CC_FOR_BUILD:-gcc} |
53 | AC_SUBST(CC_FOR_BUILD) | |
54 | ||
d477de41 | 55 | AC_PROG_AWK |
56 | ||
e440a328 | 57 | WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual' |
58 | AC_SUBST(WARN_FLAGS) | |
59 | ||
75935341 | 60 | AC_ARG_ENABLE(werror, [AS_HELP_STRING([--enable-werror], |
61 | [turns on -Werror @<:@default=yes@:>@])]) | |
62 | if test "x$enable_werror" != "xno"; then | |
63 | WERROR="-Werror" | |
64 | fi | |
e440a328 | 65 | AC_SUBST(WERROR) |
66 | ||
67 | glibgo_toolexecdir=no | |
68 | glibgo_toolexeclibdir=no | |
e440a328 | 69 | |
70 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
71 | AC_ARG_ENABLE([version-specific-runtime-libs], | |
72 | AC_HELP_STRING([--enable-version-specific-runtime-libs], | |
73 | [Specify that runtime libraries should be installed in a compiler-specific directory]), | |
74 | [case "$enableval" in | |
75 | yes) version_specific_libs=yes ;; | |
76 | no) version_specific_libs=no ;; | |
77 | *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; | |
78 | esac], | |
79 | [version_specific_libs=no]) | |
80 | AC_MSG_RESULT($version_specific_libs) | |
81 | ||
82 | # Version-specific runtime libs processing. | |
83 | if test $version_specific_libs = yes; then | |
84 | glibgo_toolexecdir='${libdir}/gcc/${host_alias}' | |
85 | glibgo_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)' | |
86 | fi | |
87 | ||
88 | # Calculate glibgo_toolexecdir, glibgo_toolexeclibdir | |
89 | # Install a library built with a cross compiler in tooldir, not libdir. | |
61efdf66 | 90 | if test -n "$with_cross_host" && |
91 | test x"$with_cross_host" != x"no"; then | |
92 | nover_glibgo_toolexecdir='${exec_prefix}/${host_alias}' | |
93 | nover_glibgo_toolexeclibdir='${toolexecdir}/lib' | |
94 | else | |
95 | nover_glibgo_toolexecdir='${libdir}/gcc/${host_alias}' | |
96 | nover_glibgo_toolexeclibdir='${libdir}' | |
97 | fi | |
67d3a836 | 98 | multi_os_directory=`$GOC -print-multi-os-directory` |
61efdf66 | 99 | case $multi_os_directory in |
100 | .) ;; # Avoid trailing /. | |
101 | *) nover_glibgo_toolexeclibdir=${nover_glibgo_toolexeclibdir}/${multi_os_directory} ;; | |
102 | esac | |
103 | ||
e440a328 | 104 | if test x"$glibgo_toolexecdir" = x"no"; then |
61efdf66 | 105 | glibgo_toolexecdir="${nover_glibgo_toolexecdir}" |
106 | glibgo_toolexeclibdir="${nover_glibgo_toolexeclibdir}" | |
e440a328 | 107 | fi |
108 | ||
e440a328 | 109 | AC_SUBST(glibgo_toolexecdir) |
110 | AC_SUBST(glibgo_toolexeclibdir) | |
61efdf66 | 111 | AC_SUBST(nover_glibgo_toolexeclibdir) |
e440a328 | 112 | |
113 | # See if the user wants to configure without libffi. Some | |
114 | # architectures don't support it. FIXME: We should set a default | |
115 | # based on the host. | |
116 | AC_ARG_WITH(libffi, | |
117 | AS_HELP_STRING([--without-libffi], | |
118 | [don't use libffi]), | |
119 | [:], | |
120 | [with_libffi=${with_libffi_default-yes}]) | |
121 | ||
122 | LIBFFI= | |
123 | LIBFFIINCS= | |
124 | if test "$with_libffi" != no; then | |
125 | AC_DEFINE(USE_LIBFFI, 1, [Define if we're to use libffi.]) | |
126 | LIBFFI=../libffi/libffi_convenience.la | |
127 | LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I../libffi/include' | |
128 | fi | |
129 | AC_SUBST(LIBFFI) | |
130 | AC_SUBST(LIBFFIINCS) | |
63e457ad | 131 | AM_CONDITIONAL(USE_LIBFFI, test "$with_liffi" != "no") |
e440a328 | 132 | |
7920387d | 133 | # See if the user wants to configure without libatomic. This is useful if we are |
134 | # on an architecture for which libgo does not need an atomic support library and | |
135 | # libatomic does not support our C compiler. | |
136 | AC_ARG_WITH(libatomic, | |
137 | AS_HELP_STRING([--without-libatomic], | |
138 | [don't use libatomic]), | |
139 | [:], | |
140 | [with_libatomic=${with_libatomic_default-yes}]) | |
141 | ||
142 | LIBATOMIC= | |
143 | if test "$with_libatomic" != no; then | |
144 | LIBATOMIC=../libatomic/libatomic_convenience.la | |
145 | fi | |
146 | AC_SUBST(LIBATOMIC) | |
147 | ||
4180345a | 148 | # Used to tell GNU make to include a file without telling automake to |
149 | # include it. | |
150 | go_include="-include" | |
151 | AC_SUBST(go_include) | |
152 | ||
91d733e1 | 153 | # All known GOOS values. This is the union of all operating systems |
154 | # supported by the gofrontend and all operating systems supported by | |
155 | # the gc toolchain. | |
31975c5e | 156 | ALLGOOS="aix android darwin dragonfly freebsd hurd irix js linux netbsd openbsd plan9 rtems solaris windows" |
91d733e1 | 157 | |
e440a328 | 158 | is_darwin=no |
159 | is_freebsd=no | |
524b52f8 | 160 | is_irix=no |
e440a328 | 161 | is_linux=no |
12adcb64 | 162 | is_netbsd=no |
fb08d005 | 163 | is_openbsd=no |
0ce10ea1 | 164 | is_dragonfly=no |
e440a328 | 165 | is_rtems=no |
cea7ac49 | 166 | is_solaris=no |
03118c21 | 167 | is_aix=no |
c6ad139d | 168 | is_hurd=no |
7731bf71 | 169 | GOOS=unknown |
e440a328 | 170 | case ${host} in |
cea7ac49 | 171 | *-*-darwin*) is_darwin=yes; GOOS=darwin ;; |
172 | *-*-freebsd*) is_freebsd=yes; GOOS=freebsd ;; | |
524b52f8 | 173 | *-*-irix6*) is_irix=yes; GOOS=irix ;; |
cea7ac49 | 174 | *-*-linux*) is_linux=yes; GOOS=linux ;; |
86240434 | 175 | *-*-netbsd*) is_netbsd=yes; GOOS=netbsd ;; |
fb08d005 | 176 | *-*-openbsd*) is_openbsd=yes; GOOS=openbsd ;; |
0ce10ea1 | 177 | *-*-dragonfly*) is_dragonfly=yes; GOOS=dragonfly ;; |
cea7ac49 | 178 | *-*-rtems*) is_rtems=yes; GOOS=rtems ;; |
179 | *-*-solaris2*) is_solaris=yes; GOOS=solaris ;; | |
03118c21 | 180 | *-*-aix*) is_aix=yes; GOOS=aix ;; |
c6ad139d | 181 | *-*-gnu*) is_hurd=yes; GOOS=hurd ;; |
e440a328 | 182 | esac |
183 | AM_CONDITIONAL(LIBGO_IS_DARWIN, test $is_darwin = yes) | |
184 | AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = yes) | |
524b52f8 | 185 | AM_CONDITIONAL(LIBGO_IS_IRIX, test $is_irix = yes) |
e440a328 | 186 | AM_CONDITIONAL(LIBGO_IS_LINUX, test $is_linux = yes) |
86240434 | 187 | AM_CONDITIONAL(LIBGO_IS_NETBSD, test $is_netbsd = yes) |
fb08d005 | 188 | AM_CONDITIONAL(LIBGO_IS_OPENBSD, test $is_openbsd = yes) |
e6af9bdb | 189 | AM_CONDITIONAL(LIBGO_IS_DRAGONFLY, test $is_dragonfly = yes) |
e440a328 | 190 | AM_CONDITIONAL(LIBGO_IS_RTEMS, test $is_rtems = yes) |
cea7ac49 | 191 | AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes) |
03118c21 | 192 | AM_CONDITIONAL(LIBGO_IS_AIX, test $is_aix = yes) |
c6ad139d | 193 | AM_CONDITIONAL(LIBGO_IS_HURD, test $is_hurd = yes) |
be239ed2 | 194 | 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) |
7731bf71 | 195 | AC_SUBST(GOOS) |
91d733e1 | 196 | AC_SUBST(ALLGOOS) |
e440a328 | 197 | |
6222f4a8 | 198 | dnl Test whether we need to use DejaGNU or whether we can use the |
199 | dnl simpler gotest approach. We can only use gotest for a native | |
200 | dnl build. | |
201 | USE_DEJAGNU=no | |
202 | case ${host} in | |
203 | *-*-rtems*) USE_DEJAGNU=yes ;; | |
9d5dfb12 | 204 | ${build}) ;; |
6222f4a8 | 205 | *) USE_DEJAGNU=yes ;; |
206 | esac | |
207 | AC_SUBST(USE_DEJAGNU) | |
208 | ||
91d733e1 | 209 | # All known GOARCH values. This is the union of all architectures |
210 | # supported by the gofrontend and all architectures supported by the | |
211 | # gc toolchain. | |
a3cba53d | 212 | # To add a new architecture: |
213 | # - add it to this list | |
214 | # - if appropriate, add an entry to ALLGOARCHFAMILY below | |
215 | # - add an entry to the case on ${host} below to set GOARCH | |
216 | # - update goarchList in libgo/go/go/build/syslist.go | |
217 | # - update goarch.sh to report the values for this architecture | |
218 | # - update go-set-goarch in gcc/testsuite/go.test/go-test.exp | |
219 | # - update ptrSizeMap and intSizeMap in libgo/go/cmd/cgo/main.go | |
220 | # - update arch lists in libgo/match.sh | |
221 | # - update arch lists in libgo/testsuite/gotest | |
222 | # - update +build lines in several places | |
223 | # - libgo/go/runtime/lfstack_NNbit.go | |
224 | # - libgo/go/runtime/hashNN.go | |
225 | # - libgo/go/runtime/unalignedN.go | |
226 | # - libgo/go/syscall/endian_XX.go | |
227 | # - possibly others | |
228 | # - possibly update files in libgo/go/internal/syscall/unix | |
9be94393 | 229 | 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" |
91d733e1 | 230 | |
a3cba53d | 231 | # All known GOARCH family values. |
9be94393 | 232 | ALLGOARCHFAMILY="I386 ALPHA AMD64 ARM ARM64 IA64 M68K MIPS MIPS64 NIOS2 PPC PPC64 RISCV RISCV64 S390 S390X SH SPARC SPARC64 WASM" |
91d733e1 | 233 | |
7731bf71 | 234 | GOARCH=unknown |
e440a328 | 235 | case ${host} in |
16dc3e4d | 236 | alpha*-*-*) |
16dc3e4d | 237 | GOARCH=alpha |
238 | ;; | |
275f094b | 239 | aarch64-*-*) |
275f094b | 240 | GOARCH=arm64 |
241 | ;; | |
8fb241fa | 242 | arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*) |
8fb241fa | 243 | GOARCH=arm |
33d1d391 | 244 | case ${host} in |
245 | arm*b*-*-*) | |
246 | GOARCH=armbe | |
33d1d391 | 247 | ;; |
248 | esac | |
8fb241fa | 249 | ;; |
e440a328 | 250 | changequote(,)dnl |
7731bf71 | 251 | i[34567]86-*-* | x86_64-*-*) |
e440a328 | 252 | changequote([,])dnl |
ea2e69a4 | 253 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
7731bf71 | 254 | #ifdef __x86_64__ |
255 | #error 64-bit | |
ea2e69a4 | 256 | #endif |
257 | ])], | |
0caa25c9 | 258 | [GOARCH=386], |
ea2e69a4 | 259 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
0caa25c9 | 260 | #ifdef __ILP32__ |
261 | #error x32 | |
ea2e69a4 | 262 | #endif |
263 | ])], | |
0caa25c9 | 264 | [GOARCH=amd64], |
265 | [GOARCH=amd64p32])) | |
e440a328 | 266 | ;; |
4d29d40e | 267 | ia64-*-*) |
4d29d40e | 268 | GOARCH=ia64 |
269 | ;; | |
8fb241fa | 270 | m68k*-*-*) |
8fb241fa | 271 | GOARCH=m68k |
272 | ;; | |
273 | mips*-*-*) | |
ea2e69a4 | 274 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
fa5e552e | 275 | #if _MIPS_SIM != _ABIO32 |
276 | #error not o32 | |
ea2e69a4 | 277 | #endif |
278 | ])], | |
fa5e552e | 279 | [mips_abi="o32"], |
ea2e69a4 | 280 | [AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
fa5e552e | 281 | #if _MIPS_SIM != _ABIN32 |
282 | #error not n32 | |
ea2e69a4 | 283 | #endif |
284 | ])], | |
fa5e552e | 285 | [mips_abi="n32"], |
ea2e69a4 | 286 | [AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
fa5e552e | 287 | #if _MIPS_SIM != _ABI64 |
288 | #error not n64 | |
ea2e69a4 | 289 | #endif |
290 | ])], | |
fa5e552e | 291 | [mips_abi="n64"], |
fa5e552e | 292 | [AC_MSG_ERROR([unknown MIPS ABI]) |
648dc544 | 293 | [mips_abi="n32"]])])]) |
fa5e552e | 294 | case "$mips_abi" in |
074bbd7b | 295 | "o32") GOARCH=mips ;; |
296 | "n32") GOARCH=mips64p32 ;; | |
297 | "n64") GOARCH=mips64 ;; | |
fa5e552e | 298 | esac |
91d733e1 | 299 | case "${host}" in |
074bbd7b | 300 | mips*el-*-*) |
301 | GOARCH="${GOARCH}le" | |
91d733e1 | 302 | ;; |
91d733e1 | 303 | esac |
8fb241fa | 304 | ;; |
9eb30feb | 305 | nios2-*-*) |
306 | GOARCH=nios2 | |
307 | ;; | |
8fb241fa | 308 | rs6000*-*-* | powerpc*-*-*) |
ea2e69a4 | 309 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
8fb241fa | 310 | #ifdef _ARCH_PPC64 |
311 | #error 64-bit | |
ea2e69a4 | 312 | #endif |
313 | ])], | |
a3cba53d | 314 | [GOARCH=ppc], |
91d733e1 | 315 | [ |
ea2e69a4 | 316 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
59eb586e | 317 | #if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__) |
318 | #error 64be | |
ea2e69a4 | 319 | #endif |
320 | ])], | |
a3cba53d | 321 | [GOARCH=ppc64le], |
322 | [GOARCH=ppc64])]) | |
e440a328 | 323 | ;; |
364c6e61 | 324 | riscv64-*-*) |
325 | GOARCH=riscv64 | |
326 | ;; | |
141eb62b | 327 | s390*-*-*) |
ea2e69a4 | 328 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
141eb62b | 329 | #if defined(__s390x__) |
330 | #error 64-bit | |
ea2e69a4 | 331 | #endif |
332 | ])], | |
a3cba53d | 333 | [GOARCH=s390], |
334 | [GOARCH=s390x]) | |
3a4ffbd2 | 335 | ;; |
a3cba53d | 336 | sh3eb*-*-* | sh4eb*-*-*) |
3a4ffbd2 | 337 | GOARCH=shbe |
3a4ffbd2 | 338 | ;; |
a3cba53d | 339 | sh3*-*-* | sh4*-*-*) |
3a4ffbd2 | 340 | GOARCH=sh |
3a4ffbd2 | 341 | ;; |
cea7ac49 | 342 | sparc*-*-*) |
ea2e69a4 | 343 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([ |
cea7ac49 | 344 | #if defined(__sparcv9) || defined(__arch64__) |
345 | #error 64-bit | |
ea2e69a4 | 346 | #endif |
347 | ])], | |
a3cba53d | 348 | [GOARCH=sparc], |
349 | [GOARCH=sparc64]) | |
cea7ac49 | 350 | ;; |
e440a328 | 351 | esac |
7731bf71 | 352 | AC_SUBST(GOARCH) |
91d733e1 | 353 | AC_SUBST(ALLGOARCH) |
354 | AC_SUBST(ALLGOARCHFAMILY) | |
e440a328 | 355 | |
8fb241fa | 356 | dnl Some files are only present when needed for specific architectures. |
d477de41 | 357 | GO_LIBCALL_OS_FILE= |
358 | GO_LIBCALL_OS_ARCH_FILE= | |
359 | GO_SYSCALL_OS_FILE= | |
360 | GO_SYSCALL_OS_ARCH_FILE= | |
4a7cfa71 | 361 | if test -f "${srcdir}/go/syscall/libcall_${GOOS}.go"; then |
362 | GO_LIBCALL_OS_FILE="go/syscall/libcall_${GOOS}.go" | |
d477de41 | 363 | fi |
4a7cfa71 | 364 | if test -f "${srcdir}/go/syscall/libcall_${GOOS}_${GOARCH}.go"; then |
365 | GO_LIBCALL_OS_ARCH_FILE="go/syscall/libcall_${GOOS}_${GOARCH}.go" | |
d477de41 | 366 | fi |
4a7cfa71 | 367 | if test -f "${srcdir}/go/syscall/syscall_${GOOS}.go"; then |
368 | GO_SYSCALL_OS_FILE="go/syscall/syscall_${GOOS}.go" | |
d477de41 | 369 | fi |
4a7cfa71 | 370 | if test -f "${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go"; then |
371 | GO_SYSCALL_OS_ARCH_FILE="go/syscall/syscall_${GOOS}_${GOARCH}.go" | |
8fb241fa | 372 | fi |
d477de41 | 373 | AC_SUBST(GO_LIBCALL_OS_FILE) |
374 | AC_SUBST(GO_LIBCALL_OS_ARCH_FILE) | |
375 | AC_SUBST(GO_SYSCALL_OS_FILE) | |
376 | AC_SUBST(GO_SYSCALL_OS_ARCH_FILE) | |
8fb241fa | 377 | |
6785caa3 | 378 | dnl Special flags used to generate sysinfo.go. |
379 | OSCFLAGS="-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" | |
69db433d | 380 | case "$target" in |
e0519e05 | 381 | mips-sgi-irix6.5*) |
382 | # IRIX 6 needs _XOPEN_SOURCE=500 for the XPG5 version of struct | |
383 | # msghdr in <sys/socket.h>. | |
6785caa3 | 384 | OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500" |
e0519e05 | 385 | ;; |
69db433d | 386 | *-*-solaris2.1[[01]]) |
387 | # Solaris 10+ needs this so struct msghdr gets the msg_control | |
ed845d9d | 388 | # etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as |
69db433d | 389 | # above doesn't work with C99. |
ed845d9d | 390 | OSCFLAGS="$OSCFLAGS -std=gnu99 -D_XOPEN_SOURCE=600 -D__EXTENSIONS__" |
69db433d | 391 | ;; |
392 | esac | |
393 | AC_SUBST(OSCFLAGS) | |
394 | ||
f7b28005 | 395 | dnl Check if assembler supports disabling hardware capability support. |
396 | GCC_CHECK_ASSEMBLER_HWCAP | |
91eedfd7 | 397 | |
e440a328 | 398 | dnl Use -fsplit-stack when compiling C code if available. |
399 | AC_CACHE_CHECK([whether -fsplit-stack is supported], | |
cea7ac49 | 400 | [libgo_cv_c_split_stack_supported], |
e440a328 | 401 | [CFLAGS_hold=$CFLAGS |
402 | CFLAGS="$CFLAGS -fsplit-stack" | |
ea2e69a4 | 403 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
cea7ac49 | 404 | [libgo_cv_c_split_stack_supported=yes], |
405 | [libgo_cv_c_split_stack_supported=no]) | |
e440a328 | 406 | CFLAGS=$CFLAGS_hold]) |
f137de11 | 407 | |
408 | dnl Make sure the linker permits -fsplit-stack. Old versions of gold will | |
409 | dnl reject split-stack code calling non-split-stack code on targets | |
410 | dnl they don't support. | |
411 | AC_CACHE_CHECK([whether linker supports split/non-split linked together], | |
412 | [libgo_cv_c_linker_split_non_split], | |
413 | [cat > conftest1.c << EOF | |
414 | extern void f(); | |
415 | int main() { f(); return 0; } | |
416 | EOF | |
417 | cat > conftest2.c << EOF | |
418 | void f() {} | |
419 | EOF | |
bea517c4 | 420 | $CC -c -fsplit-stack $CFLAGS $CPPFLAGS conftest1.c >/dev/null 2>&1 |
421 | $CC -c $CFLAGS $CPPFLAGS conftest2.c > /dev/null 2>&1 | |
422 | if $CC -o conftest conftest1.$ac_objext conftest2.$ac_objext > /dev/null 2>&1; then | |
f137de11 | 423 | libgo_cv_c_linker_split_non_split=yes |
424 | else | |
425 | libgo_cv_c_linker_split_non_split=no | |
426 | fi | |
427 | rm -f conftest1.* conftest2.* conftest]) | |
428 | ||
429 | if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes; then | |
e440a328 | 430 | SPLIT_STACK=-fsplit-stack |
431 | AC_DEFINE(USING_SPLIT_STACK, 1, | |
432 | [Define if the compiler supports -fsplit-stack]) | |
433 | else | |
434 | SPLIT_STACK= | |
435 | fi | |
436 | AC_SUBST(SPLIT_STACK) | |
437 | AM_CONDITIONAL(USING_SPLIT_STACK, | |
f137de11 | 438 | test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = yes) |
e440a328 | 439 | |
242418a3 | 440 | dnl If the compiler supports split-stack but the linker does not, then |
441 | dnl we need to explicitly disable split-stack for Go. | |
442 | if test "$libgo_cv_c_split_stack_supported" = yes -a "$libgo_cv_c_linker_split_non_split" = no; then | |
443 | GO_SPLIT_STACK=-fno-split-stack | |
444 | else | |
445 | GO_SPLIT_STACK= | |
446 | fi | |
447 | AC_SUBST(GO_SPLIT_STACK) | |
448 | ||
e440a328 | 449 | dnl Check whether the linker does stack munging when calling from |
450 | dnl split-stack into non-split-stack code. We check this by looking | |
451 | dnl at the --help output. FIXME: This is only half right: it's | |
452 | dnl possible for the linker to support this for some targets but not | |
453 | dnl others. | |
f137de11 | 454 | dnl This is slightly different from the above check, which is whether |
455 | dnl the linker permits the call at all. | |
e440a328 | 456 | AC_CACHE_CHECK([whether linker supports split stack], |
cea7ac49 | 457 | [libgo_cv_c_linker_supports_split_stack], |
7dc947bd | 458 | [libgo_cv_c_linker_supports_split_stack=no |
459 | if $GOC -Wl,--help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then | |
cea7ac49 | 460 | libgo_cv_c_linker_supports_split_stack=yes |
7dc947bd | 461 | fi]) |
cea7ac49 | 462 | if test "$libgo_cv_c_linker_supports_split_stack" = yes; then |
e440a328 | 463 | AC_DEFINE(LINKER_SUPPORTS_SPLIT_STACK, 1, |
464 | [Define if the linker support split stack adjustments]) | |
465 | fi | |
466 | ||
b5f8bff0 | 467 | AC_CACHE_CHECK([whether compiler is llgo], |
468 | [libgo_cv_c_goc_is_llgo], | |
469 | [libgo_cv_c_goc_is_llgo=no | |
470 | if $GOC -dumpversion 2>/dev/null | grep llgo >/dev/null 2>&1; then | |
471 | libgo_cv_c_goc_is_llgo=yes | |
472 | fi]) | |
473 | AM_CONDITIONAL(GOC_IS_LLGO, test "$libgo_cv_c_goc_is_llgo" = yes) | |
474 | ||
7d17fab3 | 475 | dnl Test for the -lm library. |
476 | MATH_LIBS= | |
477 | AC_CHECK_LIB([m], [sqrt], MATH_LIBS=-lm) | |
478 | AC_SUBST(MATH_LIBS) | |
479 | ||
cea7ac49 | 480 | dnl Test for -lsocket and -lnsl. Copied from libjava/configure.ac. |
481 | AC_CACHE_CHECK([for socket libraries], libgo_cv_lib_sockets, | |
482 | [libgo_cv_lib_sockets= | |
483 | libgo_check_both=no | |
484 | AC_CHECK_FUNC(connect, libgo_check_socket=no, libgo_check_socket=yes) | |
485 | if test "$libgo_check_socket" = "yes"; then | |
486 | unset ac_cv_func_connect | |
487 | AC_CHECK_LIB(socket, main, libgo_cv_lib_sockets="-lsocket", | |
488 | libgo_check_both=yes) | |
489 | fi | |
490 | if test "$libgo_check_both" = "yes"; then | |
491 | libgo_old_libs=$LIBS | |
492 | LIBS="$LIBS -lsocket -lnsl" | |
493 | unset ac_cv_func_accept | |
494 | AC_CHECK_FUNC(accept, | |
495 | [libgo_check_nsl=no | |
496 | libgo_cv_lib_sockets="-lsocket -lnsl"]) | |
497 | unset ac_cv_func_accept | |
498 | LIBS=$libgo_old_libs | |
499 | fi | |
500 | unset ac_cv_func_gethostbyname | |
501 | libgo_old_libs="$LIBS" | |
502 | AC_CHECK_FUNC(gethostbyname, , | |
503 | [AC_CHECK_LIB(nsl, main, | |
504 | [libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lnsl"])]) | |
505 | unset ac_cv_func_gethostbyname | |
5c55b1cf | 506 | AC_CHECK_FUNC(sendfile, , |
507 | [AC_CHECK_LIB(sendfile, main, | |
508 | [libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lsendfile"])]) | |
cea7ac49 | 509 | LIBS=$libgo_old_libs |
510 | ]) | |
511 | NET_LIBS="$libgo_cv_lib_sockets" | |
512 | AC_SUBST(NET_LIBS) | |
513 | ||
f555a9df | 514 | dnl Test whether the compiler supports the -pthread option. |
515 | AC_CACHE_CHECK([whether -pthread is supported], | |
cea7ac49 | 516 | [libgo_cv_lib_pthread], |
f555a9df | 517 | [CFLAGS_hold=$CFLAGS |
ac58a228 | 518 | CFLAGS="$CFLAGS -pthread -L../libatomic/.libs" |
ea2e69a4 | 519 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
cea7ac49 | 520 | [libgo_cv_lib_pthread=yes], |
521 | [libgo_cv_lib_pthread=no]) | |
f555a9df | 522 | CFLAGS=$CFLAGS_hold]) |
523 | PTHREAD_CFLAGS= | |
cea7ac49 | 524 | if test "$libgo_cv_lib_pthread" = yes; then |
ac58a228 | 525 | # RISC-V apparently adds -latomic when using -pthread. |
526 | PTHREAD_CFLAGS="-pthread -L../libatomic/.libs" | |
f555a9df | 527 | fi |
528 | AC_SUBST(PTHREAD_CFLAGS) | |
529 | ||
530 | dnl Test for the -lpthread library. | |
531 | PTHREAD_LIBS= | |
532 | AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS=-lpthread) | |
533 | AC_SUBST(PTHREAD_LIBS) | |
534 | ||
2b19d687 | 535 | dnl Test if -lrt is required for sched_yield or nanosleep or clock_gettime. |
554126c9 | 536 | AC_SEARCH_LIBS([sched_yield], [rt]) |
697aef8c | 537 | AC_SEARCH_LIBS([nanosleep], [rt]) |
2b19d687 | 538 | AC_SEARCH_LIBS([clock_gettime], [rt]) |
554126c9 | 539 | |
e440a328 | 540 | AC_C_BIGENDIAN |
541 | ||
542 | GCC_CHECK_UNWIND_GETIPINFO | |
543 | ||
04206864 | 544 | 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/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h) |
545 | ||
546 | AC_CHECK_HEADERS([netinet/icmp6.h], [], [], | |
547 | [#include <netinet/in.h> | |
548 | ]) | |
49b4e44b | 549 | |
87e44028 | 550 | AC_CHECK_HEADERS([linux/filter.h linux/if_addr.h linux/if_ether.h linux/if_tun.h linux/netlink.h linux/rtnetlink.h], [], [], |
49b4e44b | 551 | [#ifdef HAVE_SYS_SOCKET_H |
552 | #include <sys/socket.h> | |
553 | #endif | |
554 | ]) | |
555 | ||
e440a328 | 556 | AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes) |
ccd3f476 | 557 | |
00554582 | 558 | AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv unsetenv dl_iterate_phdr memmem) |
ccd3f476 | 559 | AM_CONDITIONAL(HAVE_STRERROR_R, test "$ac_cv_func_strerror_r" = yes) |
37d6b690 | 560 | AM_CONDITIONAL(HAVE_WAIT4, test "$ac_cv_func_wait4" = yes) |
e440a328 | 561 | |
03118c21 | 562 | AC_CHECK_FUNCS(accept4 dup3 epoll_create1 faccessat fallocate fchmodat fchownat futimesat getxattr inotify_add_watch inotify_init inotify_init1 inotify_rm_watch listxattr mkdirat mknodat open64 openat pipe2 removexattr renameat setxattr sync_file_range splice syscall tee unlinkat unshare utimensat) |
0ec80c0c | 563 | AC_TYPE_OFF_T |
8202cb3c | 564 | AC_CHECK_TYPES([loff_t]) |
565 | ||
6217b5f4 | 566 | LIBS_hold="$LIBS" |
567 | LIBS="$LIBS -lm" | |
568 | AC_CHECK_FUNCS(cosl expl logl sinl tanl acosl asinl atanl atan2l expm1l ldexpl log10l log1pl) | |
569 | LIBS="$LIBS_hold" | |
570 | ||
a101a385 | 571 | CFLAGS_hold="$CFLAGS" |
572 | CFLAGS="$CFLAGS $PTHREAD_CFLAGS" | |
573 | LIBS_hold="$LIBS" | |
574 | LIBS="$LIBS $PTHREAD_LIBS" | |
575 | AC_CHECK_FUNCS(sem_timedwait) | |
576 | CFLAGS="$CFLAGS_hold" | |
577 | LIBS="$LIBS_hold" | |
578 | ||
5b49fca6 | 579 | LIBS_hold="$LIBS" |
580 | LIBS="$LIBS $MATH_LIBS" | |
581 | AC_CHECK_FUNCS(matherr) | |
582 | LIBS="$LIBS_hold" | |
583 | ||
e440a328 | 584 | dnl For x86 we want to use the -minline-all-stringops option to avoid |
585 | dnl forcing a stack split when calling memcpy and friends. | |
586 | AC_CACHE_CHECK([whether compiler supports -minline-all-stringops], | |
cea7ac49 | 587 | [libgo_cv_c_stringops], |
e440a328 | 588 | [CFLAGS_hold=$CFLAGS |
589 | CFLAGS="$CFLAGS -minline-all-stringops" | |
ea2e69a4 | 590 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
cea7ac49 | 591 | [libgo_cv_c_stringops=yes], |
592 | [libgo_cv_c_stringops=no]) | |
e440a328 | 593 | CFLAGS=$CFLAGS_hold]) |
594 | STRINGOPS_FLAG= | |
cea7ac49 | 595 | if test "$libgo_cv_c_stringops" = yes; then |
e440a328 | 596 | STRINGOPS_FLAG=-minline-all-stringops |
597 | fi | |
598 | AC_SUBST(STRINGOPS_FLAG) | |
599 | ||
68e1881d | 600 | dnl For x86 we want to compile the math library with -mfancy-math-387 |
ff60d2b1 | 601 | dnl so that we can use the builtin instructions directly. |
68e1881d | 602 | AC_CACHE_CHECK([whether compiler supports -mfancy-math-387], |
603 | [libgo_cv_c_fancymath], | |
604 | [CFLAGS_hold=$CFLAGS | |
605 | CFLAGS="$CFLAGS -mfancy-math-387" | |
ea2e69a4 | 606 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
68e1881d | 607 | [libgo_cv_c_fancymath=yes], |
608 | [libgo_cv_c_fancymath=no]) | |
609 | CFLAGS=$CFLAGS_hold]) | |
610 | MATH_FLAG= | |
611 | if test "$libgo_cv_c_fancymath" = yes; then | |
ff60d2b1 | 612 | MATH_FLAG="-mfancy-math-387" |
68e1881d | 613 | fi |
ff60d2b1 | 614 | MATH_FLAG="${MATH_FLAG} -ffp-contract=off -fno-math-errno -fno-trapping-math" |
68e1881d | 615 | AC_SUBST(MATH_FLAG) |
616 | ||
e440a328 | 617 | CFLAGS_hold=$CFLAGS |
618 | CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE" | |
8202cb3c | 619 | AC_CHECK_TYPES([off64_t]) |
e440a328 | 620 | CFLAGS=$CFLAGS_hold |
621 | ||
d772e63b | 622 | dnl Work out the size of the epoll_events struct on GNU/Linux. |
623 | AC_CACHE_CHECK([epoll_event size], | |
624 | [libgo_cv_c_epoll_event_size], | |
625 | [AC_COMPUTE_INT(libgo_cv_c_epoll_event_size, | |
626 | [sizeof (struct epoll_event)], | |
627 | [#include <sys/epoll.h>], | |
628 | [libgo_cv_c_epoll_event_size=0])]) | |
629 | SIZEOF_STRUCT_EPOLL_EVENT=${libgo_cv_c_epoll_event_size} | |
630 | AC_SUBST(SIZEOF_STRUCT_EPOLL_EVENT) | |
631 | ||
632 | dnl Work out the offset of the fd field in the epoll_events struct on | |
633 | dnl GNU/Linux. | |
634 | AC_CACHE_CHECK([epoll_event data.fd offset], | |
635 | [libgo_cv_c_epoll_event_fd_offset], | |
636 | [AC_COMPUTE_INT(libgo_cv_c_epoll_event_fd_offset, | |
637 | [offsetof (struct epoll_event, data.fd)], | |
638 | [#include <stddef.h> | |
639 | #include <sys/epoll.h>], | |
640 | [libgo_cv_c_epoll_event_fd_offset=0])]) | |
641 | STRUCT_EPOLL_EVENT_FD_OFFSET=${libgo_cv_c_epoll_event_fd_offset} | |
642 | AC_SUBST(STRUCT_EPOLL_EVENT_FD_OFFSET) | |
643 | ||
8dcdfb38 | 644 | dnl Check if <sys/stat.h> uses timespec_t for st_?tim members. Introduced |
bf1eb034 | 645 | dnl in Solaris 11.4 for XPG7 compatibility. |
8dcdfb38 | 646 | AC_EGREP_HEADER([timespec_t.*st_atim], [sys/stat.h], |
647 | [have_stat_timespec=yes], [have_stat_timespec=no]) | |
648 | AM_CONDITIONAL(HAVE_STAT_TIMESPEC, test $have_stat_timespec = yes) | |
649 | ||
5b49fca6 | 650 | dnl See if struct exception is defined in <math.h>. |
651 | AC_CHECK_TYPE([struct exception], | |
652 | [libgo_has_struct_exception=yes], | |
653 | [libgo_has_struct_exception=no], | |
654 | [#include <math.h>]) | |
655 | if test "$libgo_has_struct_exception" = "yes"; then | |
656 | AC_DEFINE(HAVE_STRUCT_EXCEPTION, 1, | |
657 | [Define to 1 if <math.h> defines struct exception]) | |
658 | fi | |
659 | ||
96912098 | 660 | dnl See whether setcontext changes the value of TLS variables. |
661 | AC_CACHE_CHECK([whether setcontext clobbers TLS variables], | |
662 | [libgo_cv_lib_setcontext_clobbers_tls], | |
84a24710 | 663 | [CFLAGS_hold="$CFLAGS" |
664 | CFLAGS="$PTHREAD_CFLAGS" | |
665 | LIBS_hold="$LIBS" | |
96912098 | 666 | LIBS="$LIBS $PTHREAD_LIBS" |
84a24710 | 667 | AC_CHECK_SIZEOF([void *]) |
668 | AS_VAR_ARITH([ptr_type_size], [$ac_cv_sizeof_void_p \* 8]) | |
96912098 | 669 | AC_RUN_IFELSE( |
670 | [AC_LANG_SOURCE([ | |
671 | #include <pthread.h> | |
672 | #include <stdlib.h> | |
673 | #include <ucontext.h> | |
674 | #include <unistd.h> | |
675 | ||
676 | __thread int tls; | |
677 | ||
678 | static char stack[[10 * 1024 * 1024]]; | |
679 | static ucontext_t c; | |
680 | ||
681 | /* Called via makecontext/setcontext. */ | |
682 | ||
683 | static void | |
684 | cfn (void) | |
685 | { | |
686 | exit (tls); | |
687 | } | |
688 | ||
689 | /* Called via pthread_create. */ | |
690 | ||
691 | static void * | |
692 | tfn (void *dummy) | |
693 | { | |
694 | /* The thread should still see this value after calling | |
695 | setcontext. */ | |
696 | tls = 0; | |
697 | ||
698 | setcontext (&c); | |
699 | ||
700 | /* The call to setcontext should not return. */ | |
701 | abort (); | |
702 | } | |
703 | ||
704 | int | |
705 | main () | |
706 | { | |
707 | pthread_t tid; | |
708 | ||
709 | /* The thread should not see this value. */ | |
710 | tls = 1; | |
711 | ||
712 | if (getcontext (&c) < 0) | |
713 | abort (); | |
714 | ||
715 | c.uc_stack.ss_sp = stack; | |
9f89fc14 | 716 | #ifdef MAKECONTEXT_STACK_TOP |
717 | c.uc_stack.ss_sp += sizeof stack; | |
718 | #endif | |
96912098 | 719 | c.uc_stack.ss_flags = 0; |
720 | c.uc_stack.ss_size = sizeof stack; | |
721 | c.uc_link = NULL; | |
722 | makecontext (&c, cfn, 0); | |
723 | ||
724 | if (pthread_create (&tid, NULL, tfn, NULL) != 0) | |
725 | abort (); | |
726 | ||
727 | if (pthread_join (tid, NULL) != 0) | |
728 | abort (); | |
729 | ||
730 | /* The thread should have called exit. */ | |
731 | abort (); | |
732 | } | |
733 | ])], | |
734 | [libgo_cv_lib_setcontext_clobbers_tls=no], | |
735 | [libgo_cv_lib_setcontext_clobbers_tls=yes], | |
84a24710 | 736 | [case "$target:$ptr_type_size" in |
737 | i?86-*-solaris2.1[[01]]:64 | x86_64*-*-solaris2.1[[01]]:64) | |
738 | libgo_cv_lib_setcontext_clobbers_tls=yes ;; | |
739 | *) | |
740 | libgo_cv_lib_setcontext_clobbers_tls=no ;; | |
96912098 | 741 | esac |
742 | ]) | |
84a24710 | 743 | CFLAGS="$CFLAGS_hold" |
96912098 | 744 | LIBS="$LIBS_hold" |
745 | ]) | |
746 | if test "$libgo_cv_lib_setcontext_clobbers_tls" = "yes"; then | |
747 | AC_DEFINE(SETCONTEXT_CLOBBERS_TLS, 1, | |
748 | [Define if setcontext clobbers TLS variables]) | |
749 | fi | |
750 | ||
11f8ac85 | 751 | AC_CACHE_CHECK([whether .eh_frame section should be read-only], |
752 | libgo_cv_ro_eh_frame, [ | |
753 | libgo_cv_ro_eh_frame=no | |
754 | echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c | |
755 | if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then | |
756 | if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then | |
757 | libgo_cv_ro_eh_frame=yes | |
758 | elif grep '.section.*eh_frame.*#alloc' conftest.c \ | |
759 | | grep -v '#write' > /dev/null; then | |
760 | libgo_cv_ro_eh_frame=yes | |
761 | fi | |
762 | fi | |
763 | rm -f conftest.* | |
764 | ]) | |
765 | if test "x$libgo_cv_ro_eh_frame" = xyes; then | |
766 | AC_DEFINE(EH_FRAME_FLAGS, "a", | |
767 | [Define to the flags needed for the .section .eh_frame directive.]) | |
768 | else | |
769 | AC_DEFINE(EH_FRAME_FLAGS, "aw", | |
770 | [Define to the flags needed for the .section .eh_frame directive.]) | |
771 | fi | |
772 | ||
5f69fdaa | 773 | AC_CACHE_CHECK([if compiler supports -Qunused-arguments], |
774 | [libgo_cv_c_unused_arguments], | |
775 | [CFLAGS_hold=$CFLAGS | |
776 | CFLAGS="$CFLAGS -Qunused-arguments" | |
ea2e69a4 | 777 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])], |
5f69fdaa | 778 | [libgo_cv_c_unused_arguments=yes], |
779 | [libgo_cv_c_unused_arguments=no]) | |
780 | CFLAGS=$CFLAGS_hold]) | |
781 | ||
11f8ac85 | 782 | AC_CACHE_CHECK([if assembler supports GNU comdat group syntax], |
783 | libgo_cv_as_comdat_gnu, [ | |
784 | echo '.section .text,"axG",@progbits,.foo,comdat' > conftest.s | |
5f69fdaa | 785 | CFLAGS_hold=$CFLAGS |
786 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
787 | CFLAGS="$CFLAGS -Qunused-arguments" | |
788 | fi | |
11f8ac85 | 789 | if $CC $CFLAGS -c conftest.s > /dev/null 2>&1; then |
790 | libgo_cv_as_comdat_gnu=yes | |
791 | else | |
792 | libgo_cv_as_comdat_gnu=no | |
793 | fi | |
5f69fdaa | 794 | CFLAGS=$CFLAGS_hold |
11f8ac85 | 795 | ]) |
796 | if test "x$libgo_cv_as_comdat_gnu" = xyes; then | |
797 | AC_DEFINE(HAVE_AS_COMDAT_GAS, 1, | |
798 | [Define if your assembler supports GNU comdat group syntax.]) | |
799 | fi | |
800 | ||
801 | AC_CACHE_CHECK([assembler supports pc related relocs], | |
802 | libgo_cv_as_x86_pcrel, [ | |
803 | libgo_cv_as_x86_pcrel=yes | |
804 | echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s | |
5f69fdaa | 805 | CFLAGS_hold=$CFLAGS |
806 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
807 | CFLAGS="$CFLAGS -Qunused-arguments" | |
808 | fi | |
11f8ac85 | 809 | if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then |
810 | libgo_cv_as_x86_pcrel=no | |
811 | fi | |
5f69fdaa | 812 | CFLAGS=$CFLAGS_hold |
11f8ac85 | 813 | ]) |
814 | if test "x$libgo_cv_as_x86_pcrel" = xyes; then | |
815 | AC_DEFINE(HAVE_AS_X86_PCREL, 1, | |
816 | [Define if your assembler supports PC relative relocs.]) | |
817 | fi | |
818 | ||
819 | AC_CACHE_CHECK([assembler supports unwind section type], | |
820 | libgo_cv_as_x86_64_unwind_section_type, [ | |
821 | libgo_cv_as_x86_64_unwind_section_type=yes | |
822 | echo '.section .eh_frame,"a",@unwind' > conftest.s | |
5f69fdaa | 823 | CFLAGS_hold=$CFLAGS |
824 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
825 | CFLAGS="$CFLAGS -Qunused-arguments" | |
826 | fi | |
11f8ac85 | 827 | if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then |
828 | libgo_cv_as_x86_64_unwind_section_type=no | |
829 | fi | |
5f69fdaa | 830 | CFLAGS=$CFLAGS_hold |
11f8ac85 | 831 | ]) |
832 | if test "x$libgo_cv_as_x86_64_unwind_section_type" = xyes; then | |
833 | AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1, | |
834 | [Define if your assembler supports unwind section type.]) | |
835 | fi | |
836 | ||
41981ad6 | 837 | AC_CACHE_CHECK([assembler supports AES instructions], |
838 | libgo_cv_as_x86_aes, [ | |
839 | libgo_cv_as_x86_aes=yes | |
840 | echo 'aesenc %xmm0, %xmm1' > conftest.s | |
841 | CFLAGS_hold=$CFLAGS | |
842 | if test "$libgo_cv_c_unused_arguments" = yes; then | |
843 | CFLAGS="$CFLAGS -Qunused-arguments" | |
844 | fi | |
845 | if $CC $CFLAGS -c conftest.s 2>&1 | grep -i error > /dev/null; then | |
846 | libgo_cv_as_x86_aes=no | |
847 | fi | |
848 | CFLAGS=$CFLAGS_hold | |
849 | ]) | |
850 | if test "x$libgo_cv_as_x86_aes" = xyes; then | |
851 | AC_DEFINE(HAVE_AS_X86_AES, 1, | |
852 | [Define if your assembler supports AES instructions.]) | |
853 | fi | |
854 | ||
e440a328 | 855 | AC_CACHE_SAVE |
856 | ||
857 | if test ${multilib} = yes; then | |
858 | multilib_arg="--enable-multilib" | |
859 | else | |
860 | multilib_arg= | |
861 | fi | |
862 | ||
863 | AC_CONFIG_FILES(Makefile testsuite/Makefile) | |
864 | ||
865 | AC_CONFIG_COMMANDS([default], | |
866 | [if test -n "$CONFIG_FILES"; then | |
867 | # Multilibs need MULTISUBDIR defined correctly in certain makefiles so | |
868 | # that multilib installs will end up installed in the correct place. | |
869 | # The testsuite needs it for multilib-aware ABI baseline files. | |
870 | # To work around this not being passed down from config-ml.in -> | |
871 | # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually | |
872 | # append it here. Only modify Makefiles that have just been created. | |
873 | # | |
874 | # Also, get rid of this simulated-VPATH thing that automake does. | |
875 | cat > vpsed << \_EOF | |
876 | s!`test -f '$<' || echo '$(srcdir)/'`!! | |
877 | _EOF | |
878 | for i in $SUBDIRS; do | |
879 | case $CONFIG_FILES in | |
880 | *${i}/Makefile*) | |
881 | #echo "Adding MULTISUBDIR to $i/Makefile" | |
882 | sed -f vpsed $i/Makefile > tmp | |
883 | grep '^MULTISUBDIR =' Makefile >> tmp | |
884 | mv tmp $i/Makefile | |
885 | ;; | |
886 | esac | |
887 | done | |
888 | rm vpsed | |
889 | fi | |
890 | ], | |
891 | [ | |
892 | # Variables needed in config.status (file generation) which aren't already | |
893 | # passed by autoconf. | |
894 | SUBDIRS="$SUBDIRS" | |
895 | ]) | |
896 | ||
897 | AC_OUTPUT |