| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* |
| 3 | * Copyright (C) 2012 Regents of the University of California |
| 4 | */ |
| 5 | |
| 6 | #ifndef _ASM_RISCV_PTRACE_H |
| 7 | #define _ASM_RISCV_PTRACE_H |
| 8 | |
| 9 | #include <uapi/asm/ptrace.h> |
| 10 | #include <asm/csr.h> |
| 11 | |
| 12 | #ifndef __ASSEMBLY__ |
| 13 | |
| 14 | struct pt_regs { |
| 15 | unsigned long sepc; |
| 16 | unsigned long ra; |
| 17 | unsigned long sp; |
| 18 | unsigned long gp; |
| 19 | unsigned long tp; |
| 20 | unsigned long t0; |
| 21 | unsigned long t1; |
| 22 | unsigned long t2; |
| 23 | unsigned long s0; |
| 24 | unsigned long s1; |
| 25 | unsigned long a0; |
| 26 | unsigned long a1; |
| 27 | unsigned long a2; |
| 28 | unsigned long a3; |
| 29 | unsigned long a4; |
| 30 | unsigned long a5; |
| 31 | unsigned long a6; |
| 32 | unsigned long a7; |
| 33 | unsigned long s2; |
| 34 | unsigned long s3; |
| 35 | unsigned long s4; |
| 36 | unsigned long s5; |
| 37 | unsigned long s6; |
| 38 | unsigned long s7; |
| 39 | unsigned long s8; |
| 40 | unsigned long s9; |
| 41 | unsigned long s10; |
| 42 | unsigned long s11; |
| 43 | unsigned long t3; |
| 44 | unsigned long t4; |
| 45 | unsigned long t5; |
| 46 | unsigned long t6; |
| 47 | /* Supervisor CSRs */ |
| 48 | unsigned long sstatus; |
| 49 | unsigned long sbadaddr; |
| 50 | unsigned long scause; |
| 51 | /* a0 value before the syscall */ |
| 52 | unsigned long orig_a0; |
| 53 | }; |
| 54 | |
| 55 | #ifdef CONFIG_64BIT |
| 56 | #define REG_FMT "%016lx" |
| 57 | #else |
| 58 | #define REG_FMT "%08lx" |
| 59 | #endif |
| 60 | |
| 61 | #define user_mode(regs) (((regs)->sstatus & SR_SPP) == 0) |
| 62 | |
| 63 | |
| 64 | /* Helpers for working with the instruction pointer */ |
| 65 | static inline unsigned long instruction_pointer(struct pt_regs *regs) |
| 66 | { |
| 67 | return regs->sepc; |
| 68 | } |
| 69 | static inline void instruction_pointer_set(struct pt_regs *regs, |
| 70 | unsigned long val) |
| 71 | { |
| 72 | regs->sepc = val; |
| 73 | } |
| 74 | |
| 75 | #define profile_pc(regs) instruction_pointer(regs) |
| 76 | |
| 77 | /* Helpers for working with the user stack pointer */ |
| 78 | static inline unsigned long user_stack_pointer(struct pt_regs *regs) |
| 79 | { |
| 80 | return regs->sp; |
| 81 | } |
| 82 | static inline void user_stack_pointer_set(struct pt_regs *regs, |
| 83 | unsigned long val) |
| 84 | { |
| 85 | regs->sp = val; |
| 86 | } |
| 87 | |
| 88 | /* Helpers for working with the frame pointer */ |
| 89 | static inline unsigned long frame_pointer(struct pt_regs *regs) |
| 90 | { |
| 91 | return regs->s0; |
| 92 | } |
| 93 | static inline void frame_pointer_set(struct pt_regs *regs, |
| 94 | unsigned long val) |
| 95 | { |
| 96 | regs->s0 = val; |
| 97 | } |
| 98 | |
| 99 | static inline unsigned long regs_return_value(struct pt_regs *regs) |
| 100 | { |
| 101 | return regs->a0; |
| 102 | } |
| 103 | |
| 104 | #endif /* __ASSEMBLY__ */ |
| 105 | |
| 106 | #endif /* _ASM_RISCV_PTRACE_H */ |