projects / linux-block.git / blame
| 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 | ||
| 9f564b92 | 37 | #ifdef CONFIG_UPROBES |
| 74784081 GR |
38 | bool uprobe_breakpoint_handler(struct pt_regs *regs); |
| 39 | bool uprobe_single_step_handler(struct pt_regs *regs); | |
| 9f564b92 BT |
40 | #else |
| 41 | static inline bool uprobe_breakpoint_handler(struct pt_regs *regs) | |
| 42 | { | |
| 43 | return false; | |
| 44 | } | |
| 45 | ||
| 46 | static inline bool uprobe_single_step_handler(struct pt_regs *regs) | |
| 47 | { | |
| 48 | return false; | |
| 49 | } | |
| 50 | #endif /* CONFIG_UPROBES */ | |
| 74784081 | 51 | #endif /* _ASM_RISCV_UPROBES_H */ |