summaryrefslogtreecommitdiffstats
path: root/arch/arm/include/asm/kprobes.h
diff options
context:
space:
mode:
authorJon Medhurst <tixy@yxit.co.uk>2011-06-09 14:05:51 +0100
committerTixy <tixy@medhuaa1.miniserver.com>2011-07-13 17:32:42 +0000
commite2960317d4581689bf80dbad4d75e7a59f11a3f7 (patch)
tree1a80fc69624bd87d1e2393c3a67ce15dc1c17daf /arch/arm/include/asm/kprobes.h
parentc6a7d97d57ef41477a85f4c0f48ea5243132ee1f (diff)
ARM: kprobes: Extend arch_specific_insn to add pointer to emulated instruction
When we come to emulating Thumb instructions then, to interwork correctly, the code on in the instruction slot must be invoked with a function pointer which has the least significant bit set. Rather that set this by hand in every Thumb emulation function we will add a new field for this purpose to arch_specific_insn, called insn_fn. This also enables us to seamlessly share emulation functions between ARM and Thumb code. Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Diffstat (limited to 'arch/arm/include/asm/kprobes.h')
-rw-r--r--arch/arm/include/asm/kprobes.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/include/asm/kprobes.h b/arch/arm/include/asm/kprobes.h
index 1e9ff56d40c..feec86768f9 100644
--- a/arch/arm/include/asm/kprobes.h
+++ b/arch/arm/include/asm/kprobes.h
@@ -34,6 +34,7 @@ struct kprobe;
typedef void (kprobe_insn_handler_t)(struct kprobe *, struct pt_regs *);
typedef unsigned long (kprobe_check_cc)(unsigned long);
typedef void (kprobe_insn_singlestep_t)(struct kprobe *, struct pt_regs *);
+typedef void (kprobe_insn_fn_t)(void);
/* Architecture specific copy of original instruction. */
struct arch_specific_insn {
@@ -41,6 +42,7 @@ struct arch_specific_insn {
kprobe_insn_handler_t *insn_handler;
kprobe_check_cc *insn_check_cc;
kprobe_insn_singlestep_t *insn_singlestep;
+ kprobe_insn_fn_t *insn_fn;
};
struct prev_kprobe {