1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __ASM_SH_KPROBES_H 3*4882a593Smuzhiyun #define __ASM_SH_KPROBES_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <asm-generic/kprobes.h> 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #define BREAKPOINT_INSTRUCTION 0xc33a 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifdef CONFIG_KPROBES 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <linux/types.h> 12*4882a593Smuzhiyun #include <linux/ptrace.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun typedef insn_size_t kprobe_opcode_t; 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #define MAX_INSN_SIZE 16 17*4882a593Smuzhiyun #define MAX_STACK_SIZE 64 18*4882a593Smuzhiyun #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ 19*4882a593Smuzhiyun (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \ 20*4882a593Smuzhiyun ? (MAX_STACK_SIZE) \ 21*4882a593Smuzhiyun : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #define flush_insn_slot(p) do { } while (0) 24*4882a593Smuzhiyun #define kretprobe_blacklist_size 0 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun struct kprobe; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun void arch_remove_kprobe(struct kprobe *); 29*4882a593Smuzhiyun void kretprobe_trampoline(void); 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun /* Architecture specific copy of original instruction*/ 32*4882a593Smuzhiyun struct arch_specific_insn { 33*4882a593Smuzhiyun /* copy of the original instruction */ 34*4882a593Smuzhiyun kprobe_opcode_t insn[MAX_INSN_SIZE]; 35*4882a593Smuzhiyun }; 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun struct prev_kprobe { 38*4882a593Smuzhiyun struct kprobe *kp; 39*4882a593Smuzhiyun unsigned long status; 40*4882a593Smuzhiyun }; 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun /* per-cpu kprobe control block */ 43*4882a593Smuzhiyun struct kprobe_ctlblk { 44*4882a593Smuzhiyun unsigned long kprobe_status; 45*4882a593Smuzhiyun struct prev_kprobe prev_kprobe; 46*4882a593Smuzhiyun }; 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); 49*4882a593Smuzhiyun extern int kprobe_exceptions_notify(struct notifier_block *self, 50*4882a593Smuzhiyun unsigned long val, void *data); 51*4882a593Smuzhiyun extern int kprobe_handle_illslot(unsigned long pc); 52*4882a593Smuzhiyun #else 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun #define kprobe_handle_illslot(pc) (-1) 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun #endif /* CONFIG_KPROBES */ 57*4882a593Smuzhiyun #endif /* __ASM_SH_KPROBES_H */ 58