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[packages/trusty/cirros-testvm.git] / cirros-testvm / src-cirros / buildroot-2015.05 / package / iozone / 0002-no-nptl-support.patch

diff --git a/cirros-testvm/src-cirros/buildroot-2015.05/package/iozone/0002-no-nptl-support.patch b/cirros-testvm/src-cirros/buildroot-2015.05/package/iozone/0002-no-nptl-support.patch
new file mode 100644 (file)
index 0000000..493f52c
--- /dev/null
+++ b/cirros-testvm/src-cirros/buildroot-2015.05/package/iozone/0002-no-nptl-support.patch
@@ -0,0 +1,37 @@
+Dummy pthread_setaffinity_np() when not available
+
+On uClibc configurations that do not use the NPTL thread
+implementation, pthread_setaffinity_np() is not available. This patch
+defines a dummy (empty) implementation of this function for such
+cases.
+
+The only few architectures that do not provide the NPTL thread
+implementation are very likely to be non-SMP architectures, and
+therefore, setting the affinity of the thread is not doing anything
+useful, so having an empty stub for pthread_setaffinity_np() is not a
+problem.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+Index: b/src/current/iozone.c
+===================================================================
+--- a/src/current/iozone.c
++++ b/src/current/iozone.c
+@@ -306,6 +306,17 @@
+ #endif
+ #endif
+ 
++#if defined (__linux__)
++#include <features.h>
++#if defined (__UCLIBC__) && !defined (__UCLIBC_HAS_THREADS_NATIVE__)
++static int pthread_setaffinity_np(pthread_t thread, size_t cpusetsize,
++                                const cpu_set_t *cpuset)
++{
++      return 0;
++}
++#endif
++#endif
++
+ #if ((defined(solaris) && defined(__LP64__)) || defined(__s390x__))
+ /* If we are building for 64-bit Solaris, all functions that return pointers
+  * must be declared before they are used; otherwise the compiler will assume