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/* 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;
};
#ifdef CONFIG_UPROBES
bool uprobe_breakpoint_handler(struct pt_regs *regs);
bool uprobe_single_step_handler(struct pt_regs *regs);
#else
static inline bool uprobe_breakpoint_handler(struct pt_regs *regs)
{
return false;
}
static inline bool uprobe_single_step_handler(struct pt_regs *regs)
{
return false;
}
#endif /* CONFIG_UPROBES */
#endif /* _ASM_RISCV_UPROBES_H */
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