From: Jason Molenda <jmolenda@apple.com>
Date: Fri, 6 Feb 1998 01:22:01 +0000 (+0000)
Subject:        * top.c (do_nothing): Remove signal handler after signal is caught.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8d743926f496f69fb86a532f6db856b41e357b75;p=binutils-gdb.git

   * top.c (do_nothing): Remove signal handler after signal is caught.

Helpful for SYSV systems where two ^-\s will cause problems.  Should have
no effect on BSD systems.
---

diff --git a/gdb/top.c b/gdb/top.c
index 054bcc781df..fd5f316e2e2 100644
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -1914,6 +1914,13 @@ static void
 do_nothing (signo)
 int signo;
 {
+  /* Under System V the default disposition of a signal is reinstated after
+     the signal is caught and delivered to an application process.  On such
+     systems one must restore the replacement signal handler if one wishes
+     to continue handling the signal in one's program.  On BSD systems this
+     is not needed but it is harmless, and it simplifies the code to just do
+     it unconditionally. */
+  signal (signo, do_nothing);
 }
 
 static void