shell: for signal exitcode, use 128 | sig, not 128 + sig - MIPS has signal 128

function                                             old     new   delta
wait_for_child_or_signal                             213     214      +1
refill_HFILE_and_getc                                 89      88      -1
getstatus                                             97      96      -1
builtin_wait                                         339     337      -2
checkjobs                                            187     183      -4
process_wait_result                                  450     444      -6
waitcmd                                              290     281      -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/6 up/down: 1/-23)             Total: -22 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/shell/ash.c b/shell/ash.c
index f4d296289..aa2a93bca 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -4610,7 +4610,7 @@ getstatus(struct job *job)
                                 job->sigint = 1;
 #endif
                 }
-                retval += 128;
+                retval |= 128;
         }
         TRACE(("getstatus: job %d, nproc %d, status 0x%x, retval 0x%x\n",
                 jobno(job), job->nprocs, status, retval));
@@ -4676,7 +4676,7 @@ waitcmd(int argc UNUSED_PARAM, char **argv)
                                 if (status != -1 && !WIFSTOPPED(status)) {
                                         retval = WEXITSTATUS(status);
                                         if (WIFSIGNALED(status))
-                                                retval = WTERMSIG(status) + 128;
+                                                retval = 128 | WTERMSIG(status);
                                         goto ret;
                                 }
                         }
@@ -4711,7 +4711,7 @@ waitcmd(int argc UNUSED_PARAM, char **argv)
  ret:
         return retval;
  sigout:
-        retval = 128 + pending_sig;
+        retval = 128 | pending_sig;
         return retval;
 }