Auto merge of #2419 - devnexen:fbsd_fbsd_pthread_get_name_np, r=Amanieu

freebsd/dragonfly add pthread_get_name_np fn

Author: bors

libc-test/semver/dragonfly.txt

@@ -1355,6 +1355,7 @@ pthread_condattr_getclock
 pthread_condattr_getpshared
 pthread_condattr_setclock
 pthread_condattr_setpshared
+pthread_get_name_np
 pthread_getcpuclockid
 pthread_kill
 pthread_main_np

libc-test/semver/freebsd.txt

@@ -1640,6 +1640,7 @@ pthread_condattr_getclock
 pthread_condattr_getpshared
 pthread_condattr_setclock
 pthread_condattr_setpshared
+pthread_get_name_np
 pthread_getaffinity_np
 pthread_getcpuclockid
 pthread_getthreadid_np

src/unix/bsd/freebsdlike/mod.rs

@@ -1565,6 +1565,7 @@ extern "C" {
     ) -> ::c_int;
     pub fn pthread_barrier_destroy(barrier: *mut pthread_barrier_t) -> ::c_int;
     pub fn pthread_barrier_wait(barrier: *mut pthread_barrier_t) -> ::c_int;
+    pub fn pthread_get_name_np(tid: ::pthread_t, name: *mut ::c_char, len: ::size_t);
     pub fn pthread_set_name_np(tid: ::pthread_t, name: *const ::c_char);
     pub fn ptrace(request: ::c_int, pid: ::pid_t, addr: *mut ::c_char, data: ::c_int) -> ::c_int;
     pub fn utrace(addr: *const ::c_void, len: ::size_t) -> ::c_int;