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avr32: add kprobe_ctlblk memory struct

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This re-enables kprobes on AVR32 architecture.

Signed-off-by: Eirik Aanonsen <eaa@wprmedical.com>
Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
This commit is contained in:
Eirik Aanonsen 2013-11-06 22:00:33 +01:00 committed by Hans-Christian Egtvedt
parent d617b338bb
commit dbc0d691a4
1 changed files with 14 additions and 0 deletions
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14
arch/avr32/include/asm/kprobes.h
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@ -16,6 +16,7 @@
typedef u16 kprobe_opcode_t; typedef u16 kprobe_opcode_t;
#define BREAKPOINT_INSTRUCTION 0xd673 /* breakpoint */ #define BREAKPOINT_INSTRUCTION 0xd673 /* breakpoint */
#define MAX_INSN_SIZE 2 #define MAX_INSN_SIZE 2
#define MAX_STACK_SIZE 64 /* 32 would probably be OK */
#define kretprobe_blacklist_size 0 #define kretprobe_blacklist_size 0
@ -26,6 +27,19 @@ struct arch_specific_insn {
kprobe_opcode_t insn[MAX_INSN_SIZE]; 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_fault_handler(struct pt_regs *regs, int trapnr);
extern int kprobe_exceptions_notify(struct notifier_block *self, extern int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data); unsigned long val, void *data);