Fixes for musl support

Author: jpsamaroo

os/os.hpp

@@ -29,12 +29,17 @@
 
 #if defined(__linux__)
 #include <sched.h>
+#include <libgen.h>
 #endif
 
 #ifdef _WIN32
 #include <Basetsd.h>  // For KAFFINITY
 #endif                // _WIN32
 
+#ifndef __cpu_mask
+typedef unsigned long __cpu_mask;
+#endif
+
 // Smallest supported VM page size.
 #define MIN_PAGE_SHIFT 12
 #define MIN_PAGE_SIZE (1UL << MIN_PAGE_SHIFT)

os/os_posix.cpp

@@ -374,15 +374,22 @@ const void* Os::createOsThread(amd::Thread* thread) {
     for (int i = 0; i < processorCount_; i++) {
       CPU_SET(i, &cpuset);
     }
+#ifdef pthread_attr_setaffinity_np
     if (0 != pthread_attr_setaffinity_np(&threadAttr, sizeof(cpu_set_t), &cpuset)) {
       fatal("pthread_attr_setaffinity_np failed to set affinity");
     }
+#endif
   }
 
   pthread_t handle = 0;
   if (0 != ::pthread_create(&handle, &threadAttr, (void* (*)(void*)) & Thread::entry, thread)) {
     thread->setState(Thread::FAILED);
   }
+#ifndef pthread_attr_setaffinity_np
+  if (0 != pthread_setaffinity_np(handle, sizeof(cpu_set_t), &cpuset)) {
+    fatal("pthread_attr_setaffinity_np failed to set affinity");
+  }
+#endif
 
   ::pthread_attr_destroy(&threadAttr);
   return reinterpret_cast<const void*>(handle);