Commit | Line | Data |
---|---|---|
074c3a1b | 1 | AC_PREREQ(2.59) |
d5edb898 | 2 | AC_INIT([userspace-rcu],[0.10.0-pre],[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 | |
9e5f4ff4 | 6 | AC_SUBST([URCU_LIBRARY_VERSION], [5:0:1]) |
98bc124a | 7 | |
6893800a | 8 | AC_CONFIG_HEADERS([include/config.h include/urcu/config.h]) |
48d848c7 | 9 | AC_CONFIG_AUX_DIR([config]) |
074c3a1b MJ |
10 | AC_CONFIG_MACRO_DIR([m4]) |
11 | ||
7d413817 MD |
12 | AC_CANONICAL_TARGET |
13 | AC_CANONICAL_HOST | |
074c3a1b | 14 | |
6893800a | 15 | AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip nostdinc]) |
35eb2d6c | 16 | AM_MAINTAINER_MODE([enable]) |
7d413817 | 17 | |
074c3a1b MJ |
18 | # Enable silent rules if available (Introduced in AM 1.11) |
19 | m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) | |
e72596d1 | 20 | |
02be5561 MD |
21 | 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.]) |
22 | AH_TEMPLATE([CONFIG_RCU_HAVE_FENCE], [Defined when on a system that has memory fence instructions.]) | |
23 | AH_TEMPLATE([CONFIG_RCU_HAVE_FUTEX], [Defined when on a system with futex support.]) | |
a6412536 AM |
24 | AH_TEMPLATE([CONFIG_RCU_COMPAT_ARCH], [Compatibility mode for i386 which lacks cmpxchg instruction.]) |
25 | AH_TEMPLATE([CONFIG_RCU_ARM_HAVE_DMB], [Use the dmb instruction if available for use on ARM.]) | |
a767fdc3 | 26 | AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.]) |
a0307b90 | 27 | AH_TEMPLATE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [clock_gettime() is detected.]) |
d8d9a340 MD |
28 | AH_TEMPLATE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [Require the operating system to support the membarrier system call for default and bulletproof flavors.]) |
29 | ||
30 | # Allow requiring the operating system to support the membarrier system | |
31 | # call. Applies to default and bulletproof flavors. | |
32 | AC_ARG_ENABLE([sys-membarrier-fallback], | |
33 | AS_HELP_STRING([--disable-sys-membarrier-fallback], [Abort if sys-membarrier is needed but not available rather than using a fallback.]), | |
34 | [def_sys_membarrier_fallback=$enableval], | |
35 | [def_sys_membarrier_fallback="yes"]) | |
36 | AS_IF([test "x$def_sys_membarrier_fallback" != "xyes"], [AC_DEFINE([CONFIG_RCU_FORCE_SYS_MEMBARRIER], [1])]) | |
a767fdc3 | 37 | |
75478b32 MD |
38 | # Allow overriding storage used for TLS variables. |
39 | AC_ARG_ENABLE([compiler-tls], | |
40 | AS_HELP_STRING([--disable-compiler-tls], [Use pthread_getspecific() to emulate Thread Local Storage (TLS) variables.]), | |
41 | [def_compiler_tls=$enableval], | |
42 | [def_compiler_tls="yes"]) | |
43 | ||
44 | # If not overridden, use ax_tls.m4 to check if TLS is available. | |
45 | AS_IF([test "x$def_compiler_tls" = "xyes"], | |
46 | [AX_TLS([def_tls_detect=$ac_cv_tls], [:])], | |
47 | [:]) | |
48 | ||
49 | AS_IF([test "x$def_tls_detect" = "x"], | |
50 | [:], | |
51 | [AC_DEFINE_UNQUOTED([CONFIG_RCU_TLS], $def_tls_detect)]) | |
48d848c7 | 52 | |
074c3a1b MJ |
53 | # Checks for C compiler |
54 | AC_USE_SYSTEM_EXTENSIONS | |
48d848c7 | 55 | AC_PROG_CC |
074c3a1b MJ |
56 | AC_PROG_CC_STDC |
57 | ||
58 | # Checks for programs. | |
27d5e306 | 59 | AC_PROG_AWK |
48d848c7 | 60 | AC_PROG_MAKE_SET |
074c3a1b | 61 | AC_CHECK_PROGS(NPROC, [nproc gnproc]) |
2350bf7b MJ |
62 | AC_CHECK_PROGS(GETCONF, [getconf]) |
63 | AS_IF([test "x$NPROC" != "x"], | |
64 | [NPROC_CMD=$NPROC], | |
65 | [AS_IF([test "x$GETCONF" != "x"], | |
66 | [NPROC_CMD="$GETCONF _NPROCESSORS_ONLN"], | |
67 | [NPROC_CMD="echo 1"] | |
68 | )] | |
69 | ) | |
70 | AC_SUBST([NPROC_CMD], [$NPROC_CMD]) | |
71 | ||
b14a378a | 72 | LT_INIT |
48d848c7 PMF |
73 | |
74 | # Checks for typedefs, structures, and compiler characteristics. | |
75 | AC_C_INLINE | |
76 | AC_TYPE_PID_T | |
77 | AC_TYPE_SIZE_T | |
27d5e306 MJ |
78 | AC_TYPE_SSIZE_T |
79 | AC_TYPE_UINT16_T | |
991d28ca JR |
80 | AC_TYPE_INT32_T |
81 | AC_TYPE_UINT32_T | |
82 | AC_TYPE_UINT64_T | |
83 | AC_TYPE_UINT8_T | |
48d848c7 | 84 | |
074c3a1b MJ |
85 | AX_C___ATTRIBUTE__ |
86 | AS_IF([test "x$ax_cv___attribute__" = "xyes"], | |
87 | [:], | |
88 | [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])]) | |
89 | ||
90 | AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])]) | |
91 | LIBS="$PTHREAD_LIBS $LIBS" | |
92 | CFLAGS="$CFLAGS $PTHREAD_CFLAGS" | |
93 | CC="$PTHREAD_CC" | |
94 | ||
48d848c7 | 95 | # Checks for library functions. |
48d848c7 | 96 | AC_FUNC_MMAP |
27d5e306 MJ |
97 | AC_FUNC_FORK |
98 | AC_CHECK_FUNCS([ \ | |
99 | atexit \ | |
27d5e306 MJ |
100 | getcpuid \ |
101 | gettid \ | |
102 | gettimeofday \ | |
103 | memeset \ | |
104 | memset \ | |
105 | munmap \ | |
3e4ae45a | 106 | rand_r \ |
27d5e306 MJ |
107 | sched_getcpu \ |
108 | strerror \ | |
109 | strtoul \ | |
110 | sysconf \ | |
111 | ]) | |
48d848c7 | 112 | |
9a62b0f0 MJ |
113 | # AC_FUNC_MALLOC causes problems when cross-compiling. |
114 | #AC_FUNC_MALLOC | |
115 | ||
bb6afa9a | 116 | # Check for headers |
7dea28e7 | 117 | AC_HEADER_STDBOOL |
27d5e306 MJ |
118 | AC_CHECK_HEADERS([ \ |
119 | limits.h \ | |
120 | stddef.h \ | |
121 | sys/param.h \ | |
122 | sys/time.h \ | |
123 | ]) | |
bb6afa9a | 124 | |
48d848c7 | 125 | # Find arch type |
58e9f838 | 126 | AS_CASE([$host_cpu], |
52fe6e60 | 127 | [k1om], [ARCHTYPE="x86"], |
a6412536 AM |
128 | [i386], [ARCHTYPE="x86" && SUBARCHTYPE="x86compat"], |
129 | [i486], [ARCHTYPE="x86"], | |
130 | [i586], [ARCHTYPE="x86"], | |
131 | [i686], [ARCHTYPE="x86"], | |
132 | [amd64], [ARCHTYPE="x86"], | |
133 | [x86_64], [ARCHTYPE="x86"], | |
134 | [powerpc], [ARCHTYPE="ppc"], | |
135 | [ppc64], [ARCHTYPE="ppc"], | |
136 | [powerpc64], [ARCHTYPE="ppc"], | |
61126bd9 | 137 | [powerpc64le], [ARCHTYPE="ppc"], |
a6412536 AM |
138 | [ppc], [ARCHTYPE="ppc"], |
139 | [s390], [ARCHTYPE="s390"], | |
140 | [s390x], [ARCHTYPE="s390"], | |
171ff3a3 | 141 | [sparc], [ARCHTYPE="sparc64"], |
a6412536 AM |
142 | [sparc64], [ARCHTYPE="sparc64"], |
143 | [alpha*], [ARCHTYPE="alpha"], | |
c21a8d01 | 144 | [ia64], [ARCHTYPE="ia64"], |
a6412536 | 145 | [arm*], [ARCHTYPE="arm"], |
d1c67842 | 146 | [aarch64*], [ARCHTYPE="aarch64"], |
e1259cb1 | 147 | [mips*], [ARCHTYPE="mips"], |
859050b3 | 148 | [nios2*], [ARCHTYPE="nios2"], |
c23069c6 | 149 | [tile*], [ARCHTYPE="tile"], |
13e0bc72 | 150 | [hppa*], [ARCHTYPE="hppa"], |
a6412536 AM |
151 | [ARCHTYPE="unknown"] |
152 | ) | |
91b0650a | 153 | |
b129d5d7 SB |
154 | AS_CASE([$host],[*-cygwin*], |
155 | [AM_CONDITIONAL(USE_CYGWIN, true)], | |
156 | [AM_CONDITIONAL(USE_CYGWIN, false)] | |
157 | ) | |
158 | ||
a6412536 AM |
159 | AC_SUBST(ARCHTYPE) |
160 | AC_SUBST(SUBARCHTYPE) | |
5e626e0e | 161 | |
6893800a MJ |
162 | UATOMICSRC=include/urcu/uatomic/$ARCHTYPE.h |
163 | ARCHSRC=include/urcu/arch/$ARCHTYPE.h | |
455b809a | 164 | |
a6412536 AM |
165 | AS_IF([test "x$SUBARCHTYPE" = xx86compat],[ |
166 | AC_DEFINE([CONFIG_RCU_COMPAT_ARCH], [1]) | |
167 | ]) | |
168 | ||
58e9f838 | 169 | AS_IF([test "$host_cpu" = "armv7l"],[ |
a6412536 AM |
170 | CFLAGS="$CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1" |
171 | ]) | |
48d848c7 | 172 | |
a6412536 AM |
173 | # ARM-specific checks |
174 | AS_IF([test "x$ARCHTYPE" = "xarm"],[ | |
175 | AC_MSG_CHECKING([for dmb instruction]) | |
fe0707ab MD |
176 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
177 | int main() | |
178 | { | |
179 | asm volatile("dmb":::"memory"); | |
180 | return 0; | |
181 | } | |
182 | ]]) | |
183 | ],[ | |
a6412536 AM |
184 | AC_MSG_RESULT([yes]) |
185 | AC_DEFINE([CONFIG_RCU_ARM_HAVE_DMB], [1]) | |
186 | ],[ | |
187 | AC_MSG_RESULT([no]) | |
188 | ]) | |
189 | ]) | |
190 | ||
274773cf SM |
191 | # Tile-specific checks |
192 | AS_IF([echo "$host_cpu" | grep "^tile"],[ | |
193 | AC_MSG_CHECKING([for Tile architecture type]) | |
194 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
195 | #ifndef __tilegx__ | |
196 | #error | |
197 | #endif | |
198 | ]]) | |
199 | ],[ | |
200 | AC_MSG_RESULT([ok]) | |
201 | ],[ | |
202 | AC_MSG_FAILURE([URCU has only been tested on the TileGx architecture. For other Tile* architectures, please run the tests first and report the results to the maintainer so that proper support can be added.]) | |
203 | ]) | |
204 | ]) | |
205 | ||
a6412536 AM |
206 | # x86-specific checks |
207 | AS_IF([test "x$ARCHTYPE" = "xx86"],[ | |
208 | AC_MSG_CHECKING([if architecture really supports the mfence instruction]) | |
209 | #For now, using lock; addl compatibility mode even for i686, because the | |
210 | #Pentium III is seen as a i686, but lacks mfence instruction. | |
211 | #Only using fence for x86_64. | |
8496c886 SM |
212 | # |
213 | #k1om is the name for the Intel MIC family (Xeon Phi). It is an x86_64 | |
214 | #variant but lacks fence instructions. | |
52fe6e60 | 215 | 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 |
216 | AC_MSG_RESULT([yes]) |
217 | AC_DEFINE([CONFIG_RCU_HAVE_FENCE], [1]) | |
218 | ],[ | |
219 | AC_MSG_RESULT([no]) | |
220 | ]) | |
221 | ]) | |
222 | ||
223 | # Check if sys_futex() is available | |
224 | AC_MSG_CHECKING([for sys_futex()]) | |
fe0707ab | 225 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
a6412536 | 226 | #include <sys/syscall.h> |
a6412536 AM |
227 | #ifndef __NR_futex |
228 | #error "futexes not available" | |
229 | #endif | |
fe0707ab | 230 | ]]) |
a6412536 | 231 | ],[ |
0854ccff | 232 | AC_MSG_RESULT([yes]) |
02be5561 | 233 | AC_DEFINE([CONFIG_RCU_HAVE_FUTEX], [1]) |
0854ccff | 234 | compat_futex_test=0 |
91b0650a | 235 | ],[ |
0854ccff MD |
236 | AC_MSG_RESULT([no]) |
237 | compat_futex_test=1 | |
91b0650a | 238 | ]) |
0854ccff | 239 | |
8be0fb5f | 240 | # Search for clock_gettime |
a0307b90 MD |
241 | AC_SEARCH_LIBS([clock_gettime], [rt], [ |
242 | AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1]) | |
243 | ], []) | |
8be0fb5f | 244 | |
a6412536 AM |
245 | AM_CONDITIONAL([COMPAT_FUTEX], [test "x$compat_futex_test" = "x1"]) |
246 | AM_CONDITIONAL([COMPAT_ARCH], [test "x$SUBARCHTYPE" = "xx86compat"]) | |
2f49a496 | 247 | AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"]) |
0854ccff | 248 | |
a6412536 AM |
249 | # smp-support configure option |
250 | AC_ARG_ENABLE([smp-support], | |
251 | AS_HELP_STRING([--disable-smp-support], [Disable SMP support. Warning: only use this on uniprocessor systems. [default=enabled]]), | |
252 | [def_smp_support=$enableval], | |
253 | [def_smp_support="yes"]) | |
254 | AS_IF([test "x$def_smp_support" = "xyes"], [AC_DEFINE([CONFIG_RCU_SMP], [1])]) | |
7d413817 | 255 | |
48d848c7 | 256 | |
d8540fc5 PA |
257 | # From the sched_setaffinity(2)'s man page: |
258 | # ~~~~ | |
259 | # The CPU affinity system calls were introduced in Linux kernel 2.5.8. | |
260 | # The library interfaces were introduced in glibc 2.3. Initially, the | |
261 | # glibc interfaces included a cpusetsize argument. In glibc 2.3.3, | |
262 | # the cpuset size argument was removed, but this argument was | |
263 | # restored in glibc 2.3.4. | |
264 | # ~~~~ | |
265 | ||
266 | # In addition to that, some vendors ported the system call to 2.4 | |
267 | # kernels. | |
268 | ||
269 | # Furthermore, when the function first appeared, the MASK argument was | |
270 | # an unsigned long pointer, while later it was made into a cpu_set_t | |
271 | # pointer. Systems that have the cpu_set_t version also should have | |
272 | # the CPU_ZERO, CPU_SET, etc. macros. | |
273 | ||
274 | # All this mess means we have to cater for at least 3 different | |
275 | # sched_setaffinity prototypes: | |
276 | ||
277 | # ~~~~ | |
278 | # int sched_setaffinity (pid_t pid, unsigned int len, unsigned long *mask); | |
279 | # int sched_setaffinity (pid_t __pid, size_t __cpusetsize, const cpu_set_t *__cpuset); | |
280 | # int sched_setaffinity (pid_t __pid, const cpu_set_t *__mask); | |
281 | # ~~~~ | |
282 | ||
b3231c17 MD |
283 | AC_CHECK_TYPES([cpu_set_t], |
284 | [have_cpu_set_t="yes"], | |
285 | [have_cpu_set_t="no"], | |
286 | [#include <sched.h>]) | |
287 | ||
288 | # Confirm that we have CPU_ZERO, and it actually works. | |
289 | AC_MSG_CHECKING([whether CPU_ZERO works]) | |
290 | AH_TEMPLATE([HAVE_CPU_ZERO], [Defined to 1 if we have CPU_ZERO and it works]) | |
291 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | |
b3231c17 MD |
292 | #include <sched.h> |
293 | int main() | |
294 | { | |
295 | cpu_set_t foo; CPU_ZERO(&foo); | |
296 | return 0; | |
297 | } | |
298 | ]]) | |
299 | ],[ | |
300 | AC_DEFINE(HAVE_CPU_ZERO, 1) | |
301 | AC_MSG_RESULT([yes]) | |
302 | ],[ | |
303 | AC_MSG_RESULT([no]) | |
304 | ]) | |
305 | ||
306 | # Confirm that we have CPU_SET, and it actually works. | |
307 | AC_MSG_CHECKING([whether CPU_SET works]) | |
308 | AH_TEMPLATE([HAVE_CPU_SET], [Defined to 1 if we have CPU_SET and it works]) | |
309 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ | |
b3231c17 MD |
310 | #include <sched.h> |
311 | int main() | |
312 | { | |
313 | cpu_set_t foo, mask; CPU_SET(0, &foo); | |
314 | return 0; | |
315 | } | |
316 | ]]) | |
317 | ],[ | |
318 | AC_DEFINE(HAVE_CPU_SET, 1) | |
319 | AC_MSG_RESULT([yes]) | |
320 | ],[ | |
321 | AC_MSG_RESULT([no]) | |
322 | ]) | |
323 | ||
d8540fc5 | 324 | # First check if the function is available at all. |
a6412536 AM |
325 | AC_CHECK_FUNCS([sched_setaffinity],[ |
326 | # Okay, we have it. Check if also have cpu_set_t. If we don't, | |
327 | # then we have the first version using unsigned long, and no | |
328 | # CPU_ZERO, etc. macros. If we do have cpu_set_t, we may have the | |
329 | # version with 2 or 3 arguments. In that case, CPU_ZERO, etc., | |
330 | # should also be present, but we confirm nonetheless. | |
331 | ||
b3231c17 MD |
332 | AS_IF([test "x$have_cpu_set_t" = "xyes"], [ |
333 | # We do have it. | |
a6412536 AM |
334 | # Check how many arguments does sched_setaffinity take. |
335 | # Should be 3 or 2. | |
336 | AC_MSG_CHECKING([how many arguments sched_setaffinity takes]) | |
ec5e2d14 | 337 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
a6412536 | 338 | #include <sched.h> |
fe0707ab MD |
339 | int main() |
340 | { | |
341 | cpu_set_t foo; | |
b3231c17 | 342 | sched_setaffinity(0, sizeof (foo), &foo); |
fe0707ab MD |
343 | return 0; |
344 | } | |
a6412536 AM |
345 | ]]) |
346 | ], | |
347 | [sched_set_affinity_args=3], | |
348 | [sched_set_affinity_args=2]) | |
b3231c17 MD |
349 | AC_DEFINE_UNQUOTED(SCHED_SETAFFINITY_ARGS, |
350 | $sched_set_affinity_args, | |
a6412536 AM |
351 | [Defined to sched_setaffinity's number of arguments.]) |
352 | AC_MSG_RESULT([$sched_set_affinity_args]) | |
353 | ],[ | |
354 | # No cpu_set_t, always 3 args. | |
355 | AC_DEFINE(SCHED_SETAFFINITY_ARGS, 3) | |
b3231c17 | 356 | ]) |
a6412536 | 357 | ]) |
d8540fc5 | 358 | |
6893800a MJ |
359 | DEFAULT_INCLUDES="-include config.h" |
360 | AC_SUBST(DEFAULT_INCLUDES) | |
d8540fc5 | 361 | |
455b809a | 362 | AC_CONFIG_LINKS([ |
6893800a MJ |
363 | include/urcu/arch.h:$ARCHSRC |
364 | include/urcu/uatomic.h:$UATOMICSRC | |
455b809a | 365 | ]) |
48d848c7 PMF |
366 | AC_CONFIG_FILES([ |
367 | Makefile | |
fe999c05 | 368 | doc/Makefile |
8bad63a0 | 369 | doc/examples/Makefile |
6893800a MJ |
370 | include/Makefile |
371 | src/Makefile | |
48d848c7 | 372 | tests/Makefile |
f5ab766e MD |
373 | tests/common/Makefile |
374 | tests/unit/Makefile | |
375 | tests/benchmark/Makefile | |
376 | tests/regression/Makefile | |
074c3a1b | 377 | tests/regression/regression_tests |
1b387491 | 378 | tests/utils/Makefile |
6893800a MJ |
379 | src/liburcu.pc |
380 | src/liburcu-bp.pc | |
381 | src/liburcu-cds.pc | |
382 | src/liburcu-qsbr.pc | |
383 | src/liburcu-mb.pc | |
384 | src/liburcu-signal.pc | |
48d848c7 PMF |
385 | ]) |
386 | AC_OUTPUT | |
a6412536 AM |
387 | |
388 | # Report on selected configure options | |
389 | AS_IF([test "x$def_smp_support" = "xyes"],[ | |
390 | AS_ECHO("SMP support enabled.") | |
391 | ],[ | |
392 | AS_ECHO("SMP support disabled.") | |
393 | ]) | |
75478b32 MD |
394 | |
395 | AS_IF([test "x$def_tls_detect" = "x"],[ | |
396 | AS_ECHO("Thread Local Storage (TLS): pthread_getspecific().") | |
397 | ],[ | |
398 | AS_ECHO("Thread Local Storage (TLS): $def_tls_detect.") | |
399 | ]) |