diff options
Diffstat (limited to '')
-rw-r--r-- | arch/sh/include/asm/kprobes.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/sh/include/asm/kprobes.h b/arch/sh/include/asm/kprobes.h new file mode 100644 index 000000000..eeba83e0a --- /dev/null +++ b/arch/sh/include/asm/kprobes.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_SH_KPROBES_H +#define __ASM_SH_KPROBES_H + +#include <asm-generic/kprobes.h> + +#define BREAKPOINT_INSTRUCTION 0xc33a + +#ifdef CONFIG_KPROBES + +#include <linux/types.h> +#include <linux/ptrace.h> + +typedef insn_size_t kprobe_opcode_t; + +#define MAX_INSN_SIZE 16 +#define MAX_STACK_SIZE 64 +#define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ + (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \ + ? (MAX_STACK_SIZE) \ + : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) + +#define flush_insn_slot(p) do { } while (0) +#define kretprobe_blacklist_size 0 + +struct kprobe; + +void arch_remove_kprobe(struct kprobe *); +void __kretprobe_trampoline(void); + +/* Architecture specific copy of original instruction*/ +struct arch_specific_insn { + /* copy of the original instruction */ + kprobe_opcode_t insn[MAX_INSN_SIZE]; +}; + +struct prev_kprobe { + struct kprobe *kp; + unsigned long status; +}; + +/* per-cpu kprobe control block */ +struct kprobe_ctlblk { + unsigned long kprobe_status; + struct prev_kprobe prev_kprobe; +}; + +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); +extern int kprobe_handle_illslot(unsigned long pc); +#else + +#define kprobe_handle_illslot(pc) (-1) + +#endif /* CONFIG_KPROBES */ +#endif /* __ASM_SH_KPROBES_H */ |