From 526b1b7ec8da5b770a345a2ea1b3f7471a533d44 Mon Sep 17 00:00:00 2001
From: Alexandru Dutu <alexandru.dutu@amd.com>
Date: Tue, 4 Oct 2016 13:04:19 -0400
Subject: [PATCH] misc: Adds a warning in case gdb is attached multiple times
 Instead of scheduling another event, this patch adds a warning in case gdb is
 attached multiple times and the first attachement event has not been
 processed yet.

---
 src/base/remote_gdb.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/base/remote_gdb.cc b/src/base/remote_gdb.cc
index e033bea9c..a22ba9fbe 100644
--- a/src/base/remote_gdb.cc
+++ b/src/base/remote_gdb.cc
@@ -249,6 +249,12 @@ BaseRemoteGDB::InputEvent::InputEvent(BaseRemoteGDB *g, int fd, int e)
 void
 BaseRemoteGDB::InputEvent::process(int revent)
 {
+    if (gdb->trapEvent.scheduled()) {
+        warn("GDB trap event has already been scheduled! "
+             "Ignoring this input event.");
+        return;
+    }
+
     if (revent & POLLIN) {
         gdb->trapEvent.type(SIGILL);
         gdb->scheduleInstCommitEvent(&gdb->trapEvent, 0);
-- 
2.30.2