[mirror_ubuntu-jammy-kernel.git] / arch / riscv / include / asm / uprobes.h

/* SPDX-License-Identifier: GPL-2.0-only */

#ifndef _ASM_RISCV_UPROBES_H
#define _ASM_RISCV_UPROBES_H

#include <asm/probes.h>
#include <asm/patch.h>
#include <asm/bug.h>

#define MAX_UINSN_BYTES		8

#ifdef CONFIG_RISCV_ISA_C
#define UPROBE_SWBP_INSN	__BUG_INSN_16
#define UPROBE_SWBP_INSN_SIZE	2
#else
#define UPROBE_SWBP_INSN	__BUG_INSN_32
#define UPROBE_SWBP_INSN_SIZE	4
#endif
#define UPROBE_XOL_SLOT_BYTES	MAX_UINSN_BYTES

typedef u32 uprobe_opcode_t;

struct arch_uprobe_task {
	unsigned long   saved_cause;
};

struct arch_uprobe {
	union {
		u8 insn[MAX_UINSN_BYTES];
		u8 ixol[MAX_UINSN_BYTES];
	};
	struct arch_probe_insn api;
	unsigned long insn_size;
	bool simulate;
};

bool uprobe_breakpoint_handler(struct pt_regs *regs);
bool uprobe_single_step_handler(struct pt_regs *regs);

#endif /* _ASM_RISCV_UPROBES_H */
Commit	Line	Data
74784081 GR	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
	21	typedef u32 uprobe_opcode_t;
	22
	23	struct arch_uprobe_task {
	24	unsigned long saved_cause;
	25	};
	26
	27	struct 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
	37	bool uprobe_breakpoint_handler(struct pt_regs *regs);
	38	bool uprobe_single_step_handler(struct pt_regs *regs);
	39
	40	#endif /* _ASM_RISCV_UPROBES_H */