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authorEirik Aanonsen <eaa@wprmedical.com>2013-11-06 22:00:33 +0100
committerHans-Christian Egtvedt <hegtvedt@cisco.com>2013-11-20 09:53:22 +0100
commitdbc0d691a4dd7787efd94aa26fe7682a457e53d8 (patch)
tree3d66d4d5a8b5cbf711309b6b7bc359110877e474 /arch/avr32
parentd617b338bbfdd77e9cbd8e7dc949cee3dd73d575 (diff)
downloadlinux-dbc0d691a4dd7787efd94aa26fe7682a457e53d8.tar.bz2
avr32: add kprobe_ctlblk memory struct
This re-enables kprobes on AVR32 architecture. Signed-off-by: Eirik Aanonsen <eaa@wprmedical.com> Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Diffstat (limited to 'arch/avr32')
-rw-r--r--arch/avr32/include/asm/kprobes.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/avr32/include/asm/kprobes.h b/arch/avr32/include/asm/kprobes.h
index 996cb656474e..45f563ed73fd 100644
--- a/arch/avr32/include/asm/kprobes.h
+++ b/arch/avr32/include/asm/kprobes.h
@@ -16,6 +16,7 @@
typedef u16 kprobe_opcode_t;
#define BREAKPOINT_INSTRUCTION 0xd673 /* breakpoint */
#define MAX_INSN_SIZE 2
+#define MAX_STACK_SIZE 64 /* 32 would probably be OK */
#define kretprobe_blacklist_size 0
@@ -26,6 +27,19 @@ struct arch_specific_insn {
kprobe_opcode_t insn[MAX_INSN_SIZE];
};
+struct prev_kprobe {
+ struct kprobe *kp;
+ unsigned int status;
+};
+
+/* per-cpu kprobe control block */
+struct kprobe_ctlblk {
+ unsigned int kprobe_status;
+ struct prev_kprobe prev_kprobe;
+ struct pt_regs jprobe_saved_regs;
+ char jprobes_stack[MAX_STACK_SIZE];
+};
+
extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
extern int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data);