1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __UM_X86_PTRACE_H
3*4882a593Smuzhiyun #define __UM_X86_PTRACE_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <linux/compiler.h>
6*4882a593Smuzhiyun #ifndef CONFIG_X86_32
7*4882a593Smuzhiyun #define __FRAME_OFFSETS /* Needed to get the R* macros */
8*4882a593Smuzhiyun #endif
9*4882a593Smuzhiyun #include <asm/ptrace-generic.h>
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #define user_mode(r) UPT_IS_USER(&(r)->regs)
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #define PT_REGS_AX(r) UPT_AX(&(r)->regs)
14*4882a593Smuzhiyun #define PT_REGS_BX(r) UPT_BX(&(r)->regs)
15*4882a593Smuzhiyun #define PT_REGS_CX(r) UPT_CX(&(r)->regs)
16*4882a593Smuzhiyun #define PT_REGS_DX(r) UPT_DX(&(r)->regs)
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #define PT_REGS_SI(r) UPT_SI(&(r)->regs)
19*4882a593Smuzhiyun #define PT_REGS_DI(r) UPT_DI(&(r)->regs)
20*4882a593Smuzhiyun #define PT_REGS_BP(r) UPT_BP(&(r)->regs)
21*4882a593Smuzhiyun #define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs)
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun #define PT_REGS_CS(r) UPT_CS(&(r)->regs)
24*4882a593Smuzhiyun #define PT_REGS_SS(r) UPT_SS(&(r)->regs)
25*4882a593Smuzhiyun #define PT_REGS_DS(r) UPT_DS(&(r)->regs)
26*4882a593Smuzhiyun #define PT_REGS_ES(r) UPT_ES(&(r)->regs)
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun #define PT_REGS_ORIG_SYSCALL(r) PT_REGS_AX(r)
29*4882a593Smuzhiyun #define PT_REGS_SYSCALL_RET(r) PT_REGS_AX(r)
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun #define PT_FIX_EXEC_STACK(sp) do ; while(0)
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun #define profile_pc(regs) PT_REGS_IP(regs)
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun #define UPT_RESTART_SYSCALL(r) (UPT_IP(r) -= 2)
36*4882a593Smuzhiyun #define PT_REGS_SET_SYSCALL_RETURN(r, res) (PT_REGS_AX(r) = (res))
37*4882a593Smuzhiyun
regs_return_value(struct pt_regs * regs)38*4882a593Smuzhiyun static inline long regs_return_value(struct pt_regs *regs)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun return PT_REGS_AX(regs);
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun /*
44*4882a593Smuzhiyun * Forward declaration to avoid including sysdep/tls.h, which causes a
45*4882a593Smuzhiyun * circular include, and compilation failures.
46*4882a593Smuzhiyun */
47*4882a593Smuzhiyun struct user_desc;
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun #ifdef CONFIG_X86_32
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun extern int ptrace_get_thread_area(struct task_struct *child, int idx,
52*4882a593Smuzhiyun struct user_desc __user *user_desc);
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun extern int ptrace_set_thread_area(struct task_struct *child, int idx,
55*4882a593Smuzhiyun struct user_desc __user *user_desc);
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun #else
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun #define PT_REGS_R8(r) UPT_R8(&(r)->regs)
60*4882a593Smuzhiyun #define PT_REGS_R9(r) UPT_R9(&(r)->regs)
61*4882a593Smuzhiyun #define PT_REGS_R10(r) UPT_R10(&(r)->regs)
62*4882a593Smuzhiyun #define PT_REGS_R11(r) UPT_R11(&(r)->regs)
63*4882a593Smuzhiyun #define PT_REGS_R12(r) UPT_R12(&(r)->regs)
64*4882a593Smuzhiyun #define PT_REGS_R13(r) UPT_R13(&(r)->regs)
65*4882a593Smuzhiyun #define PT_REGS_R14(r) UPT_R14(&(r)->regs)
66*4882a593Smuzhiyun #define PT_REGS_R15(r) UPT_R15(&(r)->regs)
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun #include <asm/errno.h>
69*4882a593Smuzhiyun
ptrace_get_thread_area(struct task_struct * child,int idx,struct user_desc __user * user_desc)70*4882a593Smuzhiyun static inline int ptrace_get_thread_area(struct task_struct *child, int idx,
71*4882a593Smuzhiyun struct user_desc __user *user_desc)
72*4882a593Smuzhiyun {
73*4882a593Smuzhiyun return -ENOSYS;
74*4882a593Smuzhiyun }
75*4882a593Smuzhiyun
ptrace_set_thread_area(struct task_struct * child,int idx,struct user_desc __user * user_desc)76*4882a593Smuzhiyun static inline int ptrace_set_thread_area(struct task_struct *child, int idx,
77*4882a593Smuzhiyun struct user_desc __user *user_desc)
78*4882a593Smuzhiyun {
79*4882a593Smuzhiyun return -ENOSYS;
80*4882a593Smuzhiyun }
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun extern long arch_prctl(struct task_struct *task, int option,
83*4882a593Smuzhiyun unsigned long __user *addr);
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun #endif
86*4882a593Smuzhiyun #define user_stack_pointer(regs) PT_REGS_SP(regs)
87*4882a593Smuzhiyun #endif /* __UM_X86_PTRACE_H */
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