38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
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Dummy pthread_setaffinity_np() when not available
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On uClibc configurations that do not use the NPTL thread
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implementation, pthread_setaffinity_np() is not available. This patch
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defines a dummy (empty) implementation of this function for such
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cases.
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The only few architectures that do not provide the NPTL thread
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implementation are very likely to be non-SMP architectures, and
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therefore, setting the affinity of the thread is not doing anything
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useful, so having an empty stub for pthread_setaffinity_np() is not a
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problem.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Index: b/src/current/iozone.c
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===================================================================
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--- a/src/current/iozone.c
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+++ b/src/current/iozone.c
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@@ -306,6 +306,17 @@
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#endif
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#endif
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+#if defined (__linux__)
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+#include <features.h>
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+#if defined (__UCLIBC__) && !defined (__UCLIBC_HAS_THREADS_NATIVE__)
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+static int pthread_setaffinity_np(pthread_t thread, size_t cpusetsize,
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+ const cpu_set_t *cpuset)
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+{
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+ return 0;
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+}
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+#endif
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+#endif
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+
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#if ((defined(solaris) && defined(__LP64__)) || defined(__s390x__))
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/* If we are building for 64-bit Solaris, all functions that return pointers
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* must be declared before they are used; otherwise the compiler will assume
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