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