1 files changed, 29 insertions, 0 deletions

diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h
new file mode 100644
index 000000000000..aa399aec568e
--- /dev/null
+++ b/arch/arm/include/asm/traps.h
@@ -0,0 +1,29 @@
+#ifndef _ASMARM_TRAP_H
+#define _ASMARM_TRAP_H
+
+#include <linux/list.h>
+
+struct undef_hook {
+        struct list_head node;
+        u32 instr_mask;
+        u32 instr_val;
+        u32 cpsr_mask;
+        u32 cpsr_val;
+        int (*fn)(struct pt_regs *regs, unsigned int instr);
+};
+
+void register_undef_hook(struct undef_hook *hook);
+void unregister_undef_hook(struct undef_hook *hook);
+
+static inline int in_exception_text(unsigned long ptr)
+{
+        extern char __exception_text_start[];
+        extern char __exception_text_end[];
+
+        return ptr >= (unsigned long)&__exception_text_start &&
+               ptr < (unsigned long)&__exception_text_end;
+}
+
+extern void __init early_trap_init(void);
+
+#endif