gdb: change store_waitstatus to return a target_waitstatus by value

store_waitstatus is basically a translation function between a status
integer and an equivalent target_waitstatus object.  It would make sense
for it to take the integer as a parameter and return the
target_waitstatus by value.  Do that, and rename to
host_status_to_waitstatus.  Users can then do:

  ws = host_status_to_waitstatus (status)

which does the right thing, given the move constructor of
target_waitstatus.

Change-Id: I7a07d59d3dc19d3ed66929642f82f44f3e85d61b

1 files changed, 3 insertions, 3 deletions

diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
index fbb60a3..656a097 100644
--- a/gdb/linux-nat.c
+++ b/gdb/linux-nat.c
@@ -2159,7 +2159,7 @@ wait_lwp (struct lwp_info *lp)
 		 process is gone.  Store the status to report to the
 		 core.  Store it in lp->waitstatus, because lp->status
 		 would be ambiguous (W_EXITCODE(0,0) == 0).  */
-	      store_waitstatus (&lp->waitstatus, status);
+	      lp->waitstatus = host_status_to_waitstatus (status);
 	      return 0;
 	    }
 
@@ -2932,7 +2932,7 @@ linux_nat_filter_event (int lwpid, int status)
 
       /* Store the pending event in the waitstatus, because
 	 W_EXITCODE(0,0) == 0.  */
-      store_waitstatus (&lp->waitstatus, status);
+      lp->waitstatus = host_status_to_waitstatus (status);
       return;
     }
 
@@ -3306,7 +3306,7 @@ linux_nat_wait_1 (ptid_t ptid, struct target_waitstatus *ourstatus,
       lp->waitstatus.set_ignore ();
     }
   else
-    store_waitstatus (ourstatus, status);
+    *ourstatus = host_status_to_waitstatus (status);
 
   linux_nat_debug_printf ("exit");