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Define exclusion structure for UST ABI
[lttng-ust.git]
/
libringbuffer
/
getcpu.h
diff --git
a/libringbuffer/getcpu.h
b/libringbuffer/getcpu.h
index 0a61941728a5de814ca5e5339d30fa945d3ed9fc..190eae6c3d39bf131815e57b05c079c772ff103f 100644
(file)
--- a/
libringbuffer/getcpu.h
+++ b/
libringbuffer/getcpu.h
@@
-41,7
+41,10
@@
int lttng_ust_get_cpu(void)
*/
#ifdef __linux__
*/
#ifdef __linux__
-#ifdef __UCLIBC__
+/* old uClibc versions didn't have sched_getcpu */
+#if defined(__UCLIBC__) && __UCLIBC_MAJOR__ == 0 && \
+ (__UCLIBC_MINOR__ < 9 || \
+ (__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ <= 32))
#include <sys/syscall.h>
#define __getcpu(cpu, node, cache) syscall(__NR_getcpu, cpu, node, cache)
/*
#include <sys/syscall.h>
#define __getcpu(cpu, node, cache) syscall(__NR_getcpu, cpu, node, cache)
/*
@@
-75,11
+78,11
@@
int lttng_ust_get_cpu(void)
}
#endif /* __UCLIBC__ */
}
#endif /* __UCLIBC__ */
-#elif
defined(__FreeBSD__
)
+#elif
(defined(__FreeBSD__) || defined(__CYGWIN__)
)
/*
/*
- * FreeBSD
does not allow query of CPU ID. Always use CPU number 0, with
- * the assocated performance degradation on SMP.
+ * FreeBSD
and Cygwin do not allow query of CPU ID. Always use CPU
+ *
number 0, with
the assocated performance degradation on SMP.
*/
static inline
int lttng_ust_get_cpu(void)
*/
static inline
int lttng_ust_get_cpu(void)
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