| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __UM_X86_PTRACE_H |
| 3 | #define __UM_X86_PTRACE_H |
| 4 | |
| 5 | #include <linux/compiler.h> |
| 6 | #ifndef CONFIG_X86_32 |
| 7 | #define __FRAME_OFFSETS /* Needed to get the R* macros */ |
| 8 | #endif |
| 9 | #include <asm/ptrace-generic.h> |
| 10 | |
| 11 | #define user_mode(r) UPT_IS_USER(&(r)->regs) |
| 12 | |
| 13 | #define PT_REGS_AX(r) UPT_AX(&(r)->regs) |
| 14 | #define PT_REGS_BX(r) UPT_BX(&(r)->regs) |
| 15 | #define PT_REGS_CX(r) UPT_CX(&(r)->regs) |
| 16 | #define PT_REGS_DX(r) UPT_DX(&(r)->regs) |
| 17 | |
| 18 | #define PT_REGS_SI(r) UPT_SI(&(r)->regs) |
| 19 | #define PT_REGS_DI(r) UPT_DI(&(r)->regs) |
| 20 | #define PT_REGS_BP(r) UPT_BP(&(r)->regs) |
| 21 | #define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs) |
| 22 | |
| 23 | #define PT_REGS_CS(r) UPT_CS(&(r)->regs) |
| 24 | #define PT_REGS_SS(r) UPT_SS(&(r)->regs) |
| 25 | #define PT_REGS_DS(r) UPT_DS(&(r)->regs) |
| 26 | #define PT_REGS_ES(r) UPT_ES(&(r)->regs) |
| 27 | |
| 28 | #define PT_REGS_ORIG_SYSCALL(r) PT_REGS_AX(r) |
| 29 | #define PT_REGS_SYSCALL_RET(r) PT_REGS_AX(r) |
| 30 | |
| 31 | #define PT_FIX_EXEC_STACK(sp) do ; while(0) |
| 32 | |
| 33 | #define profile_pc(regs) PT_REGS_IP(regs) |
| 34 | |
| 35 | #define UPT_RESTART_SYSCALL(r) (UPT_IP(r) -= 2) |
| 36 | #define PT_REGS_SET_SYSCALL_RETURN(r, res) (PT_REGS_AX(r) = (res)) |
| 37 | |
| 38 | static inline long regs_return_value(struct pt_regs *regs) |
| 39 | { |
| 40 | return PT_REGS_AX(regs); |
| 41 | } |
| 42 | |
| 43 | /* |
| 44 | * Forward declaration to avoid including sysdep/tls.h, which causes a |
| 45 | * circular include, and compilation failures. |
| 46 | */ |
| 47 | struct user_desc; |
| 48 | |
| 49 | #ifdef CONFIG_X86_32 |
| 50 | |
| 51 | extern int ptrace_get_thread_area(struct task_struct *child, int idx, |
| 52 | struct user_desc __user *user_desc); |
| 53 | |
| 54 | extern int ptrace_set_thread_area(struct task_struct *child, int idx, |
| 55 | struct user_desc __user *user_desc); |
| 56 | |
| 57 | #else |
| 58 | |
| 59 | #define PT_REGS_R8(r) UPT_R8(&(r)->regs) |
| 60 | #define PT_REGS_R9(r) UPT_R9(&(r)->regs) |
| 61 | #define PT_REGS_R10(r) UPT_R10(&(r)->regs) |
| 62 | #define PT_REGS_R11(r) UPT_R11(&(r)->regs) |
| 63 | #define PT_REGS_R12(r) UPT_R12(&(r)->regs) |
| 64 | #define PT_REGS_R13(r) UPT_R13(&(r)->regs) |
| 65 | #define PT_REGS_R14(r) UPT_R14(&(r)->regs) |
| 66 | #define PT_REGS_R15(r) UPT_R15(&(r)->regs) |
| 67 | |
| 68 | #include <asm/errno.h> |
| 69 | |
| 70 | static inline int ptrace_get_thread_area(struct task_struct *child, int idx, |
| 71 | struct user_desc __user *user_desc) |
| 72 | { |
| 73 | return -ENOSYS; |
| 74 | } |
| 75 | |
| 76 | static inline int ptrace_set_thread_area(struct task_struct *child, int idx, |
| 77 | struct user_desc __user *user_desc) |
| 78 | { |
| 79 | return -ENOSYS; |
| 80 | } |
| 81 | |
| 82 | extern long arch_prctl(struct task_struct *task, int option, |
| 83 | unsigned long __user *addr); |
| 84 | |
| 85 | #endif |
| 86 | #define user_stack_pointer(regs) PT_REGS_SP(regs) |
| 87 | #endif /* __UM_X86_PTRACE_H */ |