1 files changed, 47 insertions, 0 deletions

diff --git a/recipes-extended/xen/files/tools-kdd-mute-spurious-gcc-warning-part1.patch b/recipes-extended/xen/files/tools-kdd-mute-spurious-gcc-warning-part1.patch
new file mode 100644
index 00000000..f94d22c5
--- /dev/null
+++ b/recipes-extended/xen/files/tools-kdd-mute-spurious-gcc-warning-part1.patch
@@ -0,0 +1,47 @@
+From 437e00fea04becc91c1b6bc1c0baa636b067a5cc Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
+ <marmarek@invisiblethingslab.com>
+Date: Thu, 5 Apr 2018 03:50:55 +0200
+Subject: [PATCH] tools/kdd: mute spurious gcc warning
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+gcc-8 complains:
+
+    kdd.c:698:13: error: 'memcpy' offset [-204, -717] is out of the bounds [0, 216] of object 'ctrl' with type 'kdd_ctrl' {aka 'union <anonymous>'} [-Werror=array-bounds]
+                 memcpy(buf, ((uint8_t *)&ctrl.c32) + offset, len);
+                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    kdd.c: In function 'kdd_select_callback':
+    kdd.c:642:14: note: 'ctrl' declared here
+         kdd_ctrl ctrl;
+                  ^~~~
+
+But this is impossible - 'offset' is unsigned and correctly validated
+few lines before.
+
+Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
+Acked-by: Wei Liu <wei.liu2@citrix.com>
+Release-Acked-by: Juergen Gross <jgross@suse.com>
+---
+ tools/debugger/kdd/kdd.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/tools/debugger/kdd/kdd.c b/tools/debugger/kdd/kdd.c
+index 1bd5dd5..61d769e 100644
+--- a/tools/debugger/kdd/kdd.c
++++ b/tools/debugger/kdd/kdd.c
+@@ -695,7 +695,10 @@ static void kdd_handle_read_ctrl(kdd_state *s)
+             KDD_LOG(s, "Request outside of known control space\n");
+             len = 0;
+         } else {
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Warray-bounds"
+             memcpy(buf, ((uint8_t *)&ctrl.c32) + offset, len);
++#pragma GCC diagnostic pop
+         }
+     }
+ 
+-- 
+2.7.4
+