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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 */ |