From eee3af4a2c83a97fff107ddc445d9df6fded9ce4 Mon Sep 17 00:00:00 2001
From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 13:31:09 +0100
Subject: x86, ptrace: support for branch trace store(BTS)

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Changes to the last version:
- split implementation into two layers: ds/bts and ptrace
- renamed TIF's
- save/restore ds save area msr in __switch_to_xtra()
- make block-stepping only look at BTF bit

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 include/asm-x86/ptrace.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'include/asm-x86/ptrace.h')

diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 9228870f6157..a9a1bab1451a 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -4,8 +4,19 @@
 #include <linux/compiler.h>	/* For __user */
 #include <asm/ptrace-abi.h>
 
+
 #ifndef __ASSEMBLY__
 
+#ifdef __KERNEL__
+
+#include <asm/ds.h>
+
+struct task_struct;
+extern void ptrace_bts_take_timestamp(struct task_struct *, enum bts_qualifier);
+
+#endif /* __KERNEL__ */
+
+
 #ifdef __i386__
 /* this struct defines the way the registers are stored on the
    stack during a system call. */
-- 
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