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, 2 insertions, 1 deletions

diff --git a/gdb/inf-ptrace.c b/gdb/inf-ptrace.c
index 852636ba646..2e7a03c63f5 100644
--- a/gdb/inf-ptrace.c
+++ b/gdb/inf-ptrace.c
@@ -334,7 +334,8 @@ inf_ptrace_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus,
     }
   while (pid == -1);
 
-  store_waitstatus (ourstatus, status);
+  *ourstatus = host_status_to_waitstatus (status);
+
   return ptid_t (pid);
 }