Commit fc356dcc authored by Kamil Rytarowski's avatar Kamil Rytarowski
Browse files

[compiler-rt] Adapt stop-the-world for ptrace changes in NetBSD-9.99.30 

Handle PT_LWPNEXT for newer kernels and keep PT_LWPINFO for older ones.
parent c06e5311

compiler-rt/lib/sanitizer_common/sanitizer_stoptheworld_netbsd_libcdep.cpp

+10 −2
Original line number Diff line number Diff line
@@ -120,10 +120,18 @@ bool ThreadSuspender::SuspendAllThreads() { 


  VReport(2, "Attached to process %d.\n", pid_);



#ifdef PT_LWPNEXT

  struct ptrace_lwpstatus pl;

  int op = PT_LWPNEXT;

#else

  struct ptrace_lwpinfo pl;

  int val;

  int op = PT_LWPINFO;

#endif



  pl.pl_lwpid = 0;

  while ((val = ptrace(PT_LWPINFO, pid_, (void *)&pl, sizeof(pl))) != -1 &&



  int val;

  while ((val = ptrace(op, pid_, (void *)&pl, sizeof(pl))) != -1 &&

         pl.pl_lwpid != 0) {

    suspended_threads_list_.Append(pl.pl_lwpid);

    VReport(2, "Appended thread %d in process %d.\n", pl.pl_lwpid, pid_);