[patch 4/8] Immediate Values - Move Kprobes i386 restore_interrupt to kdebug.h

Mathieu Desnoyers
2007-09-06T20:07:54Z

[-- Attachment #1: immediate-values-move-kprobes-i386-restore-interrupt-to-kdebug-h.patch --]
[-- Type: text/plain, Size: 2294 bytes --]

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 <mathieu.desnoyers@polymtl.ca>
CC: Christoph Hellwig <hch@infradead.org>
CC: prasanna@in.ibm.com
CC: ananth@in.ibm.com
CC: anil.s.keshavamurthy@intel.com
CC: davem@davemloft.net
---
include/asm-i386/kdebug.h | 12 ++++++++++++
include/asm-i386/kprobes.h | 9 ---------
2 files changed, 12 insertions(+), 9 deletions(-)

Index: linux-2.6-lttng/include/asm-i386/kdebug.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-i386/kdebug.h 2007-09-04 11:52:37.000000000 -0400
+++ linux-2.6-lttng/include/asm-i386/kdebug.h 2007-09-04 12:12:06.000000000 -0400
@@ -6,6 +6,9 @@
* from x86_64 architecture.
*/

+#include <asm/ptrace.h>
+#include <asm/system.h>
+
struct pt_regs;

/* Grossly misnamed. */
@@ -25,4 +28,13 @@ enum die_val {
DIE_PAGE_FAULT_NO_CONTEXT,
};

+/* 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-i386/kprobes.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-i386/kprobes.h 2007-09-04 11:53:26.000000000 -0400
+++ linux-2.6-lttng/include/asm-i386/kprobes.h 2007-09-04 12:12:06.000000000 -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);