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authorAnanth N Mavinakayanahalli <ananth@in.ibm.com>2012-08-23 21:26:02 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-09-05 15:19:36 +1000
commit7118e7e648e0a902bf4f38c55a25fcff730f33d7 (patch)
tree816cd359fe6fa055b2d6cadfd00645f927de8eac /arch/powerpc/include/asm/kprobes.h
parentd3dbeef657fdc9e870e0b01f811bbb906af052f8 (diff)
downloadlinux-7118e7e648e0a902bf4f38c55a25fcff730f33d7.tar.gz
powerpc: Consolidate {k,u}probe definitions
Move is_trap() and relatives to a common file to be shared between kprobes
and uprobes.

Code movement only; no change in functionality.

Suggested by Michael Ellerman.

Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/kprobes.h')
-rw-r--r--arch/powerpc/include/asm/kprobes.h15
1 files changed, 2 insertions, 13 deletions
diff --git a/arch/powerpc/include/asm/kprobes.h b/arch/powerpc/include/asm/kprobes.h
index be0171afdc0f..dc581976c6dc 100644
--- a/arch/powerpc/include/asm/kprobes.h
+++ b/arch/powerpc/include/asm/kprobes.h
@@ -29,21 +29,16 @@
 #include <linux/types.h>
 #include <linux/ptrace.h>
 #include <linux/percpu.h>
+#include <asm/probes.h>
 
 #define  __ARCH_WANT_KPROBES_INSN_SLOT
 
 struct pt_regs;
 struct kprobe;
 
-typedef unsigned int kprobe_opcode_t;
-#define BREAKPOINT_INSTRUCTION	0x7fe00008	/* trap */
+typedef opcode_t kprobe_opcode_t;
 #define MAX_INSN_SIZE 1
 
-#define IS_TW(instr)		(((instr) & 0xfc0007fe) == 0x7c000008)
-#define IS_TD(instr)		(((instr) & 0xfc0007fe) == 0x7c000088)
-#define IS_TDI(instr)		(((instr) & 0xfc000000) == 0x08000000)
-#define IS_TWI(instr)		(((instr) & 0xfc000000) == 0x0c000000)
-
 #ifdef CONFIG_PPC64
 /*
  * 64bit powerpc uses function descriptors.
@@ -72,12 +67,6 @@ typedef unsigned int kprobe_opcode_t;
 		addr = (kprobe_opcode_t *)kallsyms_lookup_name(dot_name); \
 	}								\
 }
-
-#define is_trap(instr)	(IS_TW(instr) || IS_TD(instr) || \
-			IS_TWI(instr) || IS_TDI(instr))
-#else
-/* Use stock kprobe_lookup_name since ppc32 doesn't use function descriptors */
-#define is_trap(instr)	(IS_TW(instr) || IS_TWI(instr))
 #endif
 
 #define flush_insn_slot(p)	do { } while (0)