diff options
Diffstat (limited to 'arch/um/sys-i386/bug.c')
-rw-r--r-- | arch/um/sys-i386/bug.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/um/sys-i386/bug.c b/arch/um/sys-i386/bug.c new file mode 100644 index 000000000000..200c8ba2879b --- /dev/null +++ b/arch/um/sys-i386/bug.c | |||
@@ -0,0 +1,20 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com) | ||
3 | * Licensed under the GPL V2 | ||
4 | */ | ||
5 | |||
6 | #include <linux/uaccess.h> | ||
7 | |||
8 | /* Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because | ||
9 | * that's not relevent in skas mode. | ||
10 | */ | ||
11 | |||
12 | int is_valid_bugaddr(unsigned long eip) | ||
13 | { | ||
14 | unsigned short ud2; | ||
15 | |||
16 | if (probe_kernel_address((unsigned short __user *)eip, ud2)) | ||
17 | return 0; | ||
18 | |||
19 | return ud2 == 0x0b0f; | ||
20 | } | ||