netbsd/openbsd add get thread name api.

Author: devnexen

libc-test/semver/netbsd.txt

@@ -1287,6 +1287,7 @@ pthread_cancel
 pthread_condattr_setclock
 pthread_getattr_np
 pthread_getaffinity_np
+pthread_getname_np
 pthread_kill
 pthread_mutex_timedlock
 pthread_spin_destroy

libc-test/semver/openbsd.txt

@@ -1031,6 +1031,7 @@ pthread_attr_getguardsize
 pthread_attr_getstack
 pthread_cancel
 pthread_condattr_setclock
+pthread_get_name_np
 pthread_kill
 pthread_main_np
 pthread_mutex_timedlock

src/unix/bsd/netbsdlike/netbsd/mod.rs

@@ -2154,6 +2154,7 @@ extern "C" {
     pub fn mq_unlink(name: *const ::c_char) -> ::c_int;
     pub fn ptrace(request: ::c_int, pid: ::pid_t, addr: *mut ::c_void, data: ::c_int) -> ::c_int;
     pub fn utrace(label: *const ::c_char, addr: *mut ::c_void, len: ::size_t) -> ::c_int;
+    pub fn pthread_getname_np(t: ::pthread_t, name: *mut ::c_char, len: ::size_t) -> ::c_int;
     pub fn pthread_setname_np(
         t: ::pthread_t,
         name: *const ::c_char,

src/unix/bsd/netbsdlike/openbsd/mod.rs

@@ -1546,6 +1546,7 @@ extern "C" {
         stacksize: *mut ::size_t,
     ) -> ::c_int;
     pub fn pthread_main_np() -> ::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 pthread_stackseg_np(thread: ::pthread_t, sinfo: *mut ::stack_t) -> ::c_int;