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authorDavid Woodhouse <dwmw2@infradead.org>2007-01-18 10:34:51 +1100
committerDavid Woodhouse <dwmw2@infradead.org>2007-01-18 10:34:51 +1100
commit9cdf083f981b8d37b3212400a359368661385099 (patch)
treeaa15a6a08ad87e650dea40fb59b3180bef0d345b /arch/um/sys-x86_64/bug.c
parente499e01d234a31d59679b7b1e1cf628d917ba49a (diff)
parenta8b3485287731978899ced11f24628c927890e78 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/um/sys-x86_64/bug.c')
-rw-r--r--arch/um/sys-x86_64/bug.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/um/sys-x86_64/bug.c b/arch/um/sys-x86_64/bug.c
new file mode 100644
index 00000000000..200c8ba2879
--- /dev/null
+++ b/arch/um/sys-x86_64/bug.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com)
+ * Licensed under the GPL V2
+ */
+
+#include <linux/uaccess.h>
+
+/* Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because
+ * that's not relevent in skas mode.
+ */
+
+int is_valid_bugaddr(unsigned long eip)
+{
+ unsigned short ud2;
+
+ if (probe_kernel_address((unsigned short __user *)eip, ud2))
+ return 0;
+
+ return ud2 == 0x0b0f;
+}