[rfc-patch 3/9] Immediate Values - Move Kprobes x86 restore_interrupt to kdebug.h

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Since the breakpoint handler is useful both to kprobes and immediate values, it
makes sense to make the required restore_interrupt() available through
asm-i386/kdebug.h.

Signed-off-by: Mathieu Desnoyers <[email protected]>
Acked-by: Ananth N Mavinakayanahalli <[email protected]>
CC: Christoph Hellwig <[email protected]>
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: Thomas Gleixner <[email protected]>
CC: Ingo Molnar <[email protected]>
CC: H. Peter Anvin <[email protected]>
---
 include/asm-x86/kdebug.h     |   12 ++++++++++++
 include/asm-x86/kprobes_32.h |    9 ---------
 include/asm-x86/kprobes_64.h |    9 ---------
 3 files changed, 12 insertions(+), 18 deletions(-)

Index: linux-2.6-lttng/include/asm-x86/kdebug.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-x86/kdebug.h	2007-11-02 15:01:53.000000000 -0400
+++ linux-2.6-lttng/include/asm-x86/kdebug.h	2007-11-02 15:02:00.000000000 -0400
@@ -3,6 +3,9 @@
 
 #include <linux/notifier.h>
 
+#include <linux/ptrace.h>
+#include <asm/system.h>
+
 struct pt_regs;
 
 /* Grossly misnamed. */
@@ -30,4 +33,13 @@ extern void dump_pagetable(unsigned long
 extern unsigned long oops_begin(void);
 extern void oops_end(unsigned long);
 
+/* trap3/1 are intr gates for kprobes.  So, restore the status of IF,
+ * if necessary, before executing the original int3/1 (trap) handler.
+ */
+static inline void restore_interrupts(struct pt_regs *regs)
+{
+	if (regs->eflags & IF_MASK)
+		local_irq_enable();
+}
+
 #endif
Index: linux-2.6-lttng/include/asm-x86/kprobes_32.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-x86/kprobes_32.h	2007-11-02 15:01:53.000000000 -0400
+++ linux-2.6-lttng/include/asm-x86/kprobes_32.h	2007-11-02 15:02:00.000000000 -0400
@@ -79,15 +79,6 @@ struct kprobe_ctlblk {
 	struct prev_kprobe prev_kprobe;
 };
 
-/* trap3/1 are intr gates for kprobes.  So, restore the status of IF,
- * if necessary, before executing the original int3/1 (trap) handler.
- */
-static inline void restore_interrupts(struct pt_regs *regs)
-{
-	if (regs->eflags & IF_MASK)
-		local_irq_enable();
-}
-
 extern int kprobe_exceptions_notify(struct notifier_block *self,
 				    unsigned long val, void *data);
 extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
Index: linux-2.6-lttng/include/asm-x86/kprobes_64.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-x86/kprobes_64.h	2007-11-02 15:02:10.000000000 -0400
+++ linux-2.6-lttng/include/asm-x86/kprobes_64.h	2007-11-02 15:02:22.000000000 -0400
@@ -72,15 +72,6 @@ struct kprobe_ctlblk {
 	struct prev_kprobe prev_kprobe;
 };
 
-/* trap3/1 are intr gates for kprobes.  So, restore the status of IF,
- * if necessary, before executing the original int3/1 (trap) handler.
- */
-static inline void restore_interrupts(struct pt_regs *regs)
-{
-	if (regs->eflags & IF_MASK)
-		local_irq_enable();
-}
-
 extern int post_kprobe_handler(struct pt_regs *regs);
 extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 extern int kprobe_handler(struct pt_regs *regs);

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux