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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
243412be AV |
2 | #ifndef __UM_X86_PTRACE_H |
3 | #define __UM_X86_PTRACE_H | |
4 | ||
8813f674 AV |
5 | #include <linux/compiler.h> |
6 | #ifndef CONFIG_X86_32 | |
7 | #define __FRAME_OFFSETS /* Needed to get the R* macros */ | |
27f85f12 | 8 | #endif |
8813f674 AV |
9 | #include <asm/ptrace-generic.h> |
10 | ||
11 | #define user_mode(r) UPT_IS_USER(&(r)->regs) | |
243412be AV |
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) | |
a3170d2e | 36 | #define PT_REGS_SET_SYSCALL_RETURN(r, res) (PT_REGS_AX(r) = (res)) |
243412be | 37 | |
a3170d2e | 38 | static inline long regs_return_value(struct pt_regs *regs) |
243412be | 39 | { |
a3170d2e | 40 | return PT_REGS_AX(regs); |
243412be | 41 | } |
8813f674 AV |
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 | ||
8813f674 AV |
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 | ||
8813f674 AV |
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 | ||
dd93938a | 82 | extern long arch_prctl(struct task_struct *task, int option, |
8813f674 AV |
83 | unsigned long __user *addr); |
84 | ||
85 | #endif | |
5208ba24 | 86 | #define user_stack_pointer(regs) PT_REGS_SP(regs) |
243412be | 87 | #endif /* __UM_X86_PTRACE_H */ |