[PATCH] D39490: [scudo] Make getNumberOfCPUs Fuchsia compliant

[Kamil Rytarowski via Phabricator via llvm-commits]

krytarowski added inline comments.


================
Comment at: lib/sanitizer_common/sanitizer_linux.cc:1840
+  cpu_set_t CPUs;
+  CHECK_EQ(sched_getaffinity(0, sizeof(cpu_set_t), &CPUs), 0);
+  return CPU_COUNT(&CPUs);
----------------
This breaks NetBSD. There is `sched_getaffinity_np` available in `-lrt`, however I it's better to use `sysctl` to skip unneeded dependency.

```
rugged$ sysctl -d hw.ncpuonline
hw.ncpuonline: Number of CPUs online
rugged$ sysctl -d hw.ncpu       
hw.ncpu: Number of CPUs configured
```


Repository:
  rL LLVM

https://reviews.llvm.org/D39490