* infrun.c (wait_for_inferior): When we hit a breakpoint for the

        wrong thread, make sure to write the fixed PC value into the thread
        that stopped.  Restart all threads after single stepping over a
        breakpoint for a different thread.
        * breakpoint.c (set_momentary_breakpoint): Make momentary
        breakpoints thread specific in a multi-threaded program.
        * lynx-nat.c (child_resume): Add some comments.  Correctly
        choose between the single and multi-threaded step and continue
        ptrace calls.

Some of the lynx-6100 single stepping fixes.

1 files changed, 5 insertions, 3 deletions

diff --git a/gdb/lynx-nat.c b/gdb/lynx-nat.c
index f0e817e..1ab9cc7 100644
--- a/gdb/lynx-nat.c
+++ b/gdb/lynx-nat.c
@@ -705,14 +705,16 @@ child_resume (pid, step, signal)
 
   errno = 0;
 
+  /* If pid == -1, then we want to step/continue all threads, else
+     we only want to step/continue a single thread.  */
   if (pid == -1)
     {
-      /* Resume all threads.  */
-
       pid = inferior_pid;
+      func = step ? PTRACE_SINGLESTEP : PTRACE_CONT;
     }
+  else
+    func = step ? PTRACE_SINGLESTEP_ONE : PTRACE_CONT_ONE;
 
-  func = step ? PTRACE_SINGLESTEP_ONE : PTRACE_CONT;
 
   /* An address of (PTRACE_ARG3_TYPE)1 tells ptrace to continue from where
      it was.  (If GDB wanted it to start some other way, we have already