/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef __ASM_LOONGARCH_KPROBES_H #define __ASM_LOONGARCH_KPROBES_H #include <asm-generic/kprobes.h> #ifdef CONFIG_KPROBES #include <asm/inst.h> #include <asm/cacheflush.h> #define __ARCH_WANT_KPROBES_INSN_SLOT #define MAX_INSN_SIZE 2 #define flush_insn_slot(p) \ do { \ if (p->addr) \ flush_icache_range((unsigned long)p->addr, \ (unsigned long)p->addr + \ (MAX_INSN_SIZE * sizeof(kprobe_opcode_t))); \ } while (0) #define kretprobe_blacklist_size 0 typedef u32 kprobe_opcode_t; /* Architecture specific copy of original instruction */ struct arch_specific_insn { /* copy of the original instruction */ kprobe_opcode_t *insn; /* restore address after simulation */ unsigned long restore; }; struct prev_kprobe { struct kprobe *kp; unsigned int status; }; /* per-cpu kprobe control block */ struct kprobe_ctlblk { unsigned int kprobe_status; unsigned long saved_status; struct prev_kprobe prev_kprobe; }; void arch_remove_kprobe(struct kprobe *p); bool kprobe_fault_handler(struct pt_regs *regs, int trapnr); bool kprobe_breakpoint_handler(struct pt_regs *regs); bool kprobe_singlestep_handler(struct pt_regs *regs); #else /* !CONFIG_KPROBES */ static inline bool kprobe_breakpoint_handler(struct pt_regs *regs) { return false; } static inline bool kprobe_singlestep_handler(struct pt_regs *regs) { return false; } #endif /* CONFIG_KPROBES */ #endif /* __ASM_LOONGARCH_KPROBES_H */