Commit | Line | Data |
---|---|---|
074c3a1b | 1 | AC_PREREQ(2.59) |
1ef91570 | 2 | AC_INIT([userspace-rcu],[0.9.0],[mathieu dot desnoyers at efficios dot com], [], [http://liburcu.org/]) |
98bc124a YB |
3 | |
4 | # Following the numbering scheme proposed by libtool for the library version | |
5 | # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html | |
69c9a8c0 | 6 | AC_SUBST([URCU_LIBRARY_VERSION], [4:0:0]) |
98bc124a | 7 | |
074c3a1b MJ |
8 | AC_CONFIG_SRCDIR([urcu.h]) |
9 | AC_CONFIG_HEADERS([config.h urcu/config.h]) | |
48d848c7 | 10 | AC_CONFIG_AUX_DIR([config]) |
074c3a1b MJ |
11 | AC_CONFIG_MACRO_DIR([m4]) |
12 | ||
7d413817 MD |
13 | AC_CANONICAL_TARGET |
14 | AC_CANONICAL_HOST | |
074c3a1b | 15 | |
48d848c7 | 16 | AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip]) |
35eb2d6c | 17 | AM_MAINTAINER_MODE([enable]) |
7d413817 | 18 | |
074c3a1b MJ |
19 | # Enable silent rules if available (Introduced in AM 1.11) |
20 | m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) | |
e72596d1 | 21 | |
02be5561 MD |
22 | AH_TEMPLATE([CONFIG_RCU_SMP], [Enable SMP support. With SMP support enabled, uniprocessors are also supported. With SMP support disabled, UP systems work fine, but the behavior of SMP systems is undefined.]) |
23 | AH_TEMPLATE([CONFIG_RCU_HAVE_FENCE], [Defined when on a system that has memory fence instructions.]) | |
24 | AH_TEMPLATE([CONFIG_RCU_HAVE_FUTEX], [Defined when on a system with futex support.]) | |
a6412536 AM |
25 | AH_TEMPLATE([CONFIG_RCU_COMPAT_ARCH], [Compatibility mode for i386 which lacks cmpxchg instruction.]) |
26 | AH_TEMPLATE([CONFIG_RCU_ARM_HAVE_DMB], [Use the dmb instruction if available for use on ARM.]) | |
a767fdc3 MD |
27 | AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.]) |
28 | ||
75478b32 MD |
29 | # Allow overriding storage used for TLS variables. |
30 | AC_ARG_ENABLE([compiler-tls], | |
31 | AS_HELP_STRING([--disable-compiler-tls], [Use pthread_getspecific() to emulate Thread Local Storage (TLS) variables.]), | |
32 | [def_compiler_tls=$enableval], | |
33 | [def_compiler_tls="yes"]) | |
34 | ||
35 | # If not overridden, use ax_tls.m4 to check if TLS is available. | |
36 | AS_IF([test "x$def_compiler_tls" = "xyes"], | |
37 | [AX_TLS([def_tls_detect=$ac_cv_tls], [:])], | |
38 | [:]) | |
39 | ||
40 | AS_IF([test "x$def_tls_detect" = "x"], | |
41 | [:], | |
42 | [AC_DEFINE_UNQUOTED([CONFIG_RCU_TLS], $def_tls_detect)]) | |
48d848c7 | 43 | |
074c3a1b MJ |
44 | # Checks for C compiler |
45 | AC_USE_SYSTEM_EXTENSIONS | |
48d848c7 | 46 | AC_PROG_CC |
074c3a1b MJ |
47 | AC_PROG_CC_STDC |
48 | ||
49 | # Checks for programs. | |
27d5e306 | 50 | AC_PROG_AWK |
48d848c7 | 51 | AC_PROG_MAKE_SET |
074c3a1b | 52 | AC_CHECK_PROGS(NPROC, [nproc gnproc]) |
b14a378a | 53 | LT_INIT |
48d848c7 PMF |
54 | |
55 | # Checks for typedefs, structures, and compiler characteristics. | |
56 | AC_C_INLINE | |
57 | AC_TYPE_PID_T | |
58 | AC_TYPE_SIZE_T | |
27d5e306 MJ |
59 | AC_TYPE_SSIZE_T |
60 | AC_TYPE_UINT16_T | |
991d28ca JR |
61 | AC_TYPE_INT32_T |
62 | AC_TYPE_UINT32_T | |
63 | AC_TYPE_UINT64_T | |
64 | AC_TYPE_UINT8_T | |
48d848c7 | 65 | |
074c3a1b MJ |
66 | AX_C___ATTRIBUTE__ |
67 | AS_IF([test "x$ax_cv___attribute__" = "xyes"], | |
68 | [:], | |
69 | [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])]) | |
70 | ||
71 | AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])]) | |
72 | LIBS="$PTHREAD_LIBS $LIBS" | |
73 | CFLAGS="$CFLAGS $PTHREAD_CFLAGS" | |
74 | CC="$PTHREAD_CC" | |
75 | ||
48d848c7 PMF |
76 | # Checks for library functions. |
77 | AC_FUNC_MALLOC | |
78 | AC_FUNC_MMAP | |
27d5e306 MJ |
79 | AC_FUNC_FORK |
80 | AC_CHECK_FUNCS([ \ | |
81 | atexit \ | |
82 | clock_gettime \ | |
83 | getcpuid \ | |
84 | gettid \ | |
85 | gettimeofday \ | |
86 | memeset \ | |
87 | memset \ | |
88 | munmap \ | |
89 | sched_getcpu \ | |
90 | strerror \ | |
91 | strtoul \ | |
92 | sysconf \ | |
93 | ]) | |
48d848c7 | 94 | |
bb6afa9a | 95 | # Check for headers |
7dea28e7 | 96 | AC_HEADER_STDBOOL |
27d5e306 MJ |
97 | AC_CHECK_HEADERS([ \ |
98 | limits.h \ | |
99 | stddef.h \ | |
100 | sys/param.h \ | |
101 | sys/time.h \ | |
102 | ]) | |
bb6afa9a | 103 | |
48d848c7 | 104 | # Find arch type |
58e9f838 | 105 | AS_CASE([$host_cpu], |
52fe6e60 | 106 | [k1om], [ARCHTYPE="x86"], |
a6412536 AM |
107 | [i386], [ARCHTYPE="x86" && SUBARCHTYPE="x86compat"], |
108 | [i486], [ARCHTYPE="x86"], | |
109 | [i586], [ARCHTYPE="x86"], | |
110 | [i686], [ARCHTYPE="x86"], | |
111 | [amd64], [ARCHTYPE="x86"], | |
112 | [x86_64], [ARCHTYPE="x86"], | |
113 | [powerpc], [ARCHTYPE="ppc"], | |
114 | [ppc64], [ARCHTYPE="ppc"], | |
115 | [powerpc64], [ARCHTYPE="ppc"], | |
61126bd9 | 116 | [powerpc64le], [ARCHTYPE="ppc"], |
a6412536 AM |
117 | [ppc], [ARCHTYPE="ppc"], |
118 | [s390], [ARCHTYPE="s390"], | |
119 | [s390x], [ARCHTYPE="s390"], | |
171ff3a3 | 120 | [sparc], [ARCHTYPE="sparc64"], |
a6412536 AM |
121 | [sparc64], [ARCHTYPE="sparc64"], |
122 | [alpha*], [ARCHTYPE="alpha"], | |
c21a8d01 | 123 | [ia64], [ARCHTYPE="ia64"], |
a6412536 | 124 | [arm*], [ARCHTYPE="arm"], |
3aea2ae0 | 125 | [aarch64], [ARCHTYPE="aarch64"], |
e1259cb1 | 126 | [mips*], [ARCHTYPE="mips"], |
c23069c6 | 127 | [tile*], [ARCHTYPE="tile"], |
13e0bc72 | 128 | [hppa*], [ARCHTYPE="hppa"], |
a6412536 AM |
129 | [ARCHTYPE="unknown"] |
130 | ) | |
91b0650a | 131 | |
de41725c CB |
132 | AS_CASE([$host],[*-*-linux-androideabi], |
133 | [AM_CONDITIONAL(TARGET_IS_ANDROID, true)], | |
134 | [AM_CONDITIONAL(TARGET_IS_ANDROID, false)] | |
135 | ) | |
136 | ||
a6412536 AM |
137 | AC_SUBST(ARCHTYPE) |
138 | AC_SUBST(SUBARCHTYPE) | |
5e626e0e | 139 | |
a2e7bf9c | 140 | UATOMICSRC=urcu/uatomic/$ARCHTYPE.h |
1b9119f8 | 141 | ARCHSRC=urcu/arch/$ARCHTYPE.h |
455b809a | 142 | |
a6412536 AM |
143 | AS_IF([test "x$SUBARCHTYPE" = xx86compat],[ |
144 | AC_DEFINE([CONFIG_RCU_COMPAT_ARCH], [1]) | |
145 | ]) | |
146 | ||
58e9f838 | 147 | AS_IF([test "$host_cpu" = "armv7l"],[ |
a6412536 AM |
148 | CFLAGS="$CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1" |
149 | ]) | |
48d848c7 | 150 | |
a6412536 AM |
151 | # ARM-specific checks |
152 | AS_IF([test "x$ARCHTYPE" = "xarm"],[ | |
153 | AC_MSG_CHECKING([for dmb instruction]) | |
fe0707ab MD |
154 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
155 | int main() | |
156 | { | |
157 | asm volatile("dmb":::"memory"); | |
158 | return 0; | |
159 | } | |
160 | ]]) | |
161 | ],[ | |
a6412536 AM |
162 | AC_MSG_RESULT([yes]) |
163 | AC_DEFINE([CONFIG_RCU_ARM_HAVE_DMB], [1]) | |
164 | ],[ | |
165 | AC_MSG_RESULT([no]) | |
166 | ]) | |
167 | ]) | |
168 | ||
274773cf SM |
169 | # Tile-specific checks |
170 | AS_IF([echo "$host_cpu" | grep "^tile"],[ | |
171 | AC_MSG_CHECKING([for Tile architecture type]) | |
172 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
173 | #ifndef __tilegx__ | |
174 | #error | |
175 | #endif | |
176 | ]]) | |
177 | ],[ | |
178 | AC_MSG_RESULT([ok]) | |
179 | ],[ | |
180 | AC_MSG_FAILURE([URCU has only been tested on the TileGx architecture. For other Tile* architectures, please run the tests first and report the results to the maintainer so that proper support can be added.]) | |
181 | ]) | |
182 | ]) | |
183 | ||
a6412536 AM |
184 | # x86-specific checks |
185 | AS_IF([test "x$ARCHTYPE" = "xx86"],[ | |
186 | AC_MSG_CHECKING([if architecture really supports the mfence instruction]) | |
187 | #For now, using lock; addl compatibility mode even for i686, because the | |
188 | #Pentium III is seen as a i686, but lacks mfence instruction. | |
189 | #Only using fence for x86_64. | |
8496c886 SM |
190 | # |
191 | #k1om is the name for the Intel MIC family (Xeon Phi). It is an x86_64 | |
192 | #variant but lacks fence instructions. | |
52fe6e60 | 193 | AS_IF([test "x$host_cpu" != "xi386" -a "x$host_cpu" != "xi486" -a "x$host_cpu" != "xi586" -a "x$host_cpu" != "xi686" -a "x$host_vendor" != "xk1om" -a "x$host_cpu" != "xk1om"],[ |
a6412536 AM |
194 | AC_MSG_RESULT([yes]) |
195 | AC_DEFINE([CONFIG_RCU_HAVE_FENCE], [1]) | |
196 | ],[ | |
197 | AC_MSG_RESULT([no]) | |
198 | ]) | |
199 | ]) | |
200 | ||
201 | # Check if sys_futex() is available | |
202 | AC_MSG_CHECKING([for sys_futex()]) | |
fe0707ab | 203 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
a6412536 | 204 | #include <sys/syscall.h> |
a6412536 AM |
205 | #ifndef __NR_futex |
206 | #error "futexes not available" | |
207 | #endif | |
fe0707ab | 208 | ]]) |
a6412536 | 209 | ],[ |
0854ccff | 210 | AC_MSG_RESULT([yes]) |
02be5561 | 211 | AC_DEFINE([CONFIG_RCU_HAVE_FUTEX], [1]) |
0854ccff | 212 | compat_futex_test=0 |
91b0650a | 213 | ],[ |
0854ccff MD |
214 | AC_MSG_RESULT([no]) |
215 | compat_futex_test=1 | |
91b0650a | 216 | ]) |
0854ccff | 217 | |
0e1efa0e CB |
218 | # Check for pthread |
219 | AC_CHECK_LIB([pthread], [pthread_create], | |
220 | [AM_CONDITIONAL(LIBC_INCLUDES_PTHREAD, false)], | |
221 | [AC_CHECK_LIB([c], [pthread_create], | |
222 | [AM_CONDITIONAL(LIBC_INCLUDES_PTHREAD, true)], | |
223 | [AC_MSG_ERROR([Cannot find libpthread. Use [LDFLAGS]=-Ldir to specify its location.])] | |
224 | )] | |
225 | ) | |
226 | ||
a6412536 AM |
227 | AM_CONDITIONAL([COMPAT_FUTEX], [test "x$compat_futex_test" = "x1"]) |
228 | AM_CONDITIONAL([COMPAT_ARCH], [test "x$SUBARCHTYPE" = "xx86compat"]) | |
2f49a496 | 229 | AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"]) |
0854ccff | 230 | |
a6412536 AM |
231 | # smp-support configure option |
232 | AC_ARG_ENABLE([smp-support], | |
233 | AS_HELP_STRING([--disable-smp-support], [Disable SMP support. Warning: only use this on uniprocessor systems. [default=enabled]]), | |
234 | [def_smp_support=$enableval], | |
235 | [def_smp_support="yes"]) | |
236 | AS_IF([test "x$def_smp_support" = "xyes"], [AC_DEFINE([CONFIG_RCU_SMP], [1])]) | |
7d413817 | 237 | |
48d848c7 | 238 | |
d8540fc5 PA |
239 | # From the sched_setaffinity(2)'s man page: |
240 | # ~~~~ | |
241 | # The CPU affinity system calls were introduced in Linux kernel 2.5.8. | |
242 | # The library interfaces were introduced in glibc 2.3. Initially, the | |
243 | # glibc interfaces included a cpusetsize argument. In glibc 2.3.3, | |
244 | # the cpuset size argument was removed, but this argument was | |
245 | # restored in glibc 2.3.4. | |
246 | # ~~~~ | |
247 | ||
248 | # In addition to that, some vendors ported the system call to 2.4 | |
249 | # kernels. | |
250 | ||
251 | # Furthermore, when the function first appeared, the MASK argument was | |
252 | # an unsigned long pointer, while later it was made into a cpu_set_t | |
253 | # pointer. Systems that have the cpu_set_t version also should have | |
254 | # the CPU_ZERO, CPU_SET, etc. macros. | |
255 | ||
256 | # All this mess means we have to cater for at least 3 different | |
257 | # sched_setaffinity prototypes: | |
258 | ||
259 | # ~~~~ | |
260 | # int sched_setaffinity (pid_t pid, unsigned int len, unsigned long *mask); | |
261 | # int sched_setaffinity (pid_t __pid, size_t __cpusetsize, const cpu_set_t *__cpuset); | |
262 | # int sched_setaffinity (pid_t __pid, const cpu_set_t *__mask); | |
263 | # ~~~~ | |
264 | ||
a6412536 AM |
265 | # Since we define _GNU_SOURCE in the sources, must do so too in the |
266 | # autoconf tests, as defining _GNU_SOURCE or not exposes | |
267 | # sched_setaffinity bits differently. | |
d8540fc5 PA |
268 | saved_CFLAGS=$CFLAGS |
269 | CFLAGS="$CFLAGS -D_GNU_SOURCE" | |
270 | ||
b3231c17 MD |
271 | AC_CHECK_TYPES([cpu_set_t], |
272 | [have_cpu_set_t="yes"], | |
273 | [have_cpu_set_t="no"], | |
274 | [#include <sched.h>]) | |
275 | ||
276 | # Confirm that we have CPU_ZERO, and it actually works. | |
277 | AC_MSG_CHECKING([whether CPU_ZERO works]) | |
278 | AH_TEMPLATE([HAVE_CPU_ZERO], [Defined to 1 if we have CPU_ZERO and it works]) | |
279 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | |
280 | #define _GNU_SOURCE | |
281 | #include <sched.h> | |
282 | int main() | |
283 | { | |
284 | cpu_set_t foo; CPU_ZERO(&foo); | |
285 | return 0; | |
286 | } | |
287 | ]]) | |
288 | ],[ | |
289 | AC_DEFINE(HAVE_CPU_ZERO, 1) | |
290 | AC_MSG_RESULT([yes]) | |
291 | ],[ | |
292 | AC_MSG_RESULT([no]) | |
293 | ]) | |
294 | ||
295 | # Confirm that we have CPU_SET, and it actually works. | |
296 | AC_MSG_CHECKING([whether CPU_SET works]) | |
297 | AH_TEMPLATE([HAVE_CPU_SET], [Defined to 1 if we have CPU_SET and it works]) | |
298 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | |
299 | #define _GNU_SOURCE | |
300 | #include <sched.h> | |
301 | int main() | |
302 | { | |
303 | cpu_set_t foo, mask; CPU_SET(0, &foo); | |
304 | return 0; | |
305 | } | |
306 | ]]) | |
307 | ],[ | |
308 | AC_DEFINE(HAVE_CPU_SET, 1) | |
309 | AC_MSG_RESULT([yes]) | |
310 | ],[ | |
311 | AC_MSG_RESULT([no]) | |
312 | ]) | |
313 | ||
d8540fc5 | 314 | # First check if the function is available at all. |
a6412536 AM |
315 | AC_CHECK_FUNCS([sched_setaffinity],[ |
316 | # Okay, we have it. Check if also have cpu_set_t. If we don't, | |
317 | # then we have the first version using unsigned long, and no | |
318 | # CPU_ZERO, etc. macros. If we do have cpu_set_t, we may have the | |
319 | # version with 2 or 3 arguments. In that case, CPU_ZERO, etc., | |
320 | # should also be present, but we confirm nonetheless. | |
321 | ||
b3231c17 MD |
322 | AS_IF([test "x$have_cpu_set_t" = "xyes"], [ |
323 | # We do have it. | |
a6412536 AM |
324 | # Check how many arguments does sched_setaffinity take. |
325 | # Should be 3 or 2. | |
326 | AC_MSG_CHECKING([how many arguments sched_setaffinity takes]) | |
ec5e2d14 | 327 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
a6412536 | 328 | #include <sched.h> |
fe0707ab MD |
329 | int main() |
330 | { | |
331 | cpu_set_t foo; | |
b3231c17 | 332 | sched_setaffinity(0, sizeof (foo), &foo); |
fe0707ab MD |
333 | return 0; |
334 | } | |
a6412536 AM |
335 | ]]) |
336 | ], | |
337 | [sched_set_affinity_args=3], | |
338 | [sched_set_affinity_args=2]) | |
b3231c17 MD |
339 | AC_DEFINE_UNQUOTED(SCHED_SETAFFINITY_ARGS, |
340 | $sched_set_affinity_args, | |
a6412536 AM |
341 | [Defined to sched_setaffinity's number of arguments.]) |
342 | AC_MSG_RESULT([$sched_set_affinity_args]) | |
343 | ],[ | |
344 | # No cpu_set_t, always 3 args. | |
345 | AC_DEFINE(SCHED_SETAFFINITY_ARGS, 3) | |
b3231c17 | 346 | ]) |
a6412536 | 347 | ]) |
d8540fc5 PA |
348 | |
349 | CFLAGS=$saved_CFLAGS | |
350 | ||
455b809a PB |
351 | AC_CONFIG_LINKS([ |
352 | urcu/arch.h:$ARCHSRC | |
a2e7bf9c | 353 | urcu/uatomic.h:$UATOMICSRC |
455b809a | 354 | ]) |
48d848c7 PMF |
355 | AC_CONFIG_FILES([ |
356 | Makefile | |
fe999c05 | 357 | doc/Makefile |
8bad63a0 | 358 | doc/examples/Makefile |
48d848c7 | 359 | tests/Makefile |
f5ab766e MD |
360 | tests/common/Makefile |
361 | tests/unit/Makefile | |
362 | tests/benchmark/Makefile | |
363 | tests/regression/Makefile | |
074c3a1b | 364 | tests/regression/regression_tests |
1b387491 | 365 | tests/utils/Makefile |
2260a36c YB |
366 | liburcu.pc |
367 | liburcu-bp.pc | |
a6412536 | 368 | liburcu-cds.pc |
2260a36c YB |
369 | liburcu-qsbr.pc |
370 | liburcu-mb.pc | |
371 | liburcu-signal.pc | |
48d848c7 PMF |
372 | ]) |
373 | AC_OUTPUT | |
a6412536 AM |
374 | |
375 | # Report on selected configure options | |
376 | AS_IF([test "x$def_smp_support" = "xyes"],[ | |
377 | AS_ECHO("SMP support enabled.") | |
378 | ],[ | |
379 | AS_ECHO("SMP support disabled.") | |
380 | ]) | |
75478b32 MD |
381 | |
382 | AS_IF([test "x$def_tls_detect" = "x"],[ | |
383 | AS_ECHO("Thread Local Storage (TLS): pthread_getspecific().") | |
384 | ],[ | |
385 | AS_ECHO("Thread Local Storage (TLS): $def_tls_detect.") | |
386 | ]) |