[MacPorts] #59772: python38: fails on Leopard: Undefined symbols: :info:build "_pthread_threadid_np"

[MacPorts]

#59772: python38: fails on Leopard: Undefined symbols: :info:build
"_pthread_threadid_np"
-----------------------+---------------------------
  Reporter:  kencu     |      Owner:  jmroot
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  leopard tiger
      Port:  python38  |
-----------------------+---------------------------

Comment (by kencu):

 This snippet is getting very close, just need to flesh out the details of
 replicating the full functionality of {{{pthread_threadid_np}}}. This
 might need to go into {{{legacysupport}}} as it is a tad complicated, but
 perhaps the python source file will accept these headers being added ...

 {{{
 #include <unistd.h>

 #include <errno.h>
 #include <iostream>
 #include <pthread.h>
 #include <sys/syscall.h>

 #include <mach/kern_return.h>
 #include <mach/thread_info.h>
 #include <mach/thread_act.h>

 uint64_t my_pthread_threadid_np(pthread_t thread) {
     mach_port_name_t port=pthread_mach_thread_np(thread);

     thread_identifier_info_data_t info;
     mach_msg_type_number_t info_count=THREAD_IDENTIFIER_INFO_COUNT;
     kern_return_t kr=thread_info(port,
                                  THREAD_IDENTIFIER_INFO,
                                  (thread_info_t)&info,
                                  &info_count);
     if(kr!=KERN_SUCCESS) {
         /* you can get a description of the error by calling
          * mach_error_string(kr)
          */
         return 0;
     } else {
         return info.thread_id;
     }
 }

 int main() {
  std::cout << "getpid()=" << getpid() << std::endl;

  std::cout << "pthread_self()=" << pthread_self() << std::endl;
  uint64_t tid;
  pthread_threadid_np(NULL, &tid);
  std::cout << "pthread_threadid_np()=" << tid << std::endl;

  std::cout << "syscall(SYS_thread_selfid)=" << syscall(SYS_thread_selfid)
 << std::endl;

 //for (int i=0; i < 100; i++) {
  mach_port_t newtid = pthread_mach_thread_np(pthread_self());
  std::cout << "pthread_mach_thread_np()=" << (uint64_t)newtid <<
 std::endl;
 //}

  std::cout << "my_pthread_threadid_np()=" <<
 my_pthread_threadid_np(pthread_self()) << std::endl;

  return 0;
 }


 // getting very close to replicating the function
 // check the man page for pthread_threadid_np for details on
 implementation
 // probably can find it in Apple Open Source as well
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/59772#comment:14>
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