LXR linux/arch/riscv/include/asm/uprobes.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2
   3#ifndef _ASM_RISCV_UPROBES_H
   4#define _ASM_RISCV_UPROBES_H
   5
   6#include <asm/probes.h>
   7#include <asm/patch.h>
   8#include <asm/bug.h>
   9
  10#define MAX_UINSN_BYTES         8
  11
  12#ifdef CONFIG_RISCV_ISA_C
  13#define UPROBE_SWBP_INSN        __BUG_INSN_16
  14#define UPROBE_SWBP_INSN_SIZE   2
  15#else
  16#define UPROBE_SWBP_INSN        __BUG_INSN_32
  17#define UPROBE_SWBP_INSN_SIZE   4
  18#endif
  19#define UPROBE_XOL_SLOT_BYTES   MAX_UINSN_BYTES
  20
  21typedef u32 uprobe_opcode_t;
  22
  23struct arch_uprobe_task {
  24        unsigned long   saved_cause;
  25};
  26
  27struct arch_uprobe {
  28        union {
  29                u8 insn[MAX_UINSN_BYTES];
  30                u8 ixol[MAX_UINSN_BYTES];
  31        };
  32        struct arch_probe_insn api;
  33        unsigned long insn_size;
  34        bool simulate;
  35};
  36
  37bool uprobe_breakpoint_handler(struct pt_regs *regs);
  38bool uprobe_single_step_handler(struct pt_regs *regs);
  39
  40#endif /* _ASM_RISCV_UPROBES_H */
  41