Robustify mpers.awk against invalid input

[strace] / signal.c

diff --git a/signal.c b/signal.c
index 1df3fe5bed43b82e988a955e3e321e688b4898d2..ec1684ef82ecd6623982ad584c6076e470555519 100644 (file)
--- a/signal.c
+++ b/signal.c
@@ -673,7 +673,16 @@ SYS_FUNC(rt_sigtimedwait)
                /* syscall exit, and u_arg[1] was NULL */
                return 0;
        }
+
+       /*
+        * Since the timeout parameter is read by the kernel
+        * on entering syscall, it has to be decoded the same way
+        * whether the syscall has failed or not.
+        */
+       temporarily_clear_syserror(tcp);
        print_timespec(tcp, tcp->u_arg[2]);
+       restore_cleared_syserror(tcp);
+
        tprintf(", %lu", tcp->u_arg[3]);
        return 0;
 };