1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __SYSDEP_X86_PTRACE_H
3#define __SYSDEP_X86_PTRACE_H
4
5#include <generated/user_constants.h>
6#include <sysdep/faultinfo.h>
7
8#define MAX_REG_OFFSET (UM_FRAME_SIZE)
9#define MAX_REG_NR ((MAX_REG_OFFSET) / sizeof(unsigned long))
10
11#define REGS_IP(r) ((r)[HOST_IP])
12#define REGS_SP(r) ((r)[HOST_SP])
13#define REGS_EFLAGS(r) ((r)[HOST_EFLAGS])
14#define REGS_AX(r) ((r)[HOST_AX])
15#define REGS_BX(r) ((r)[HOST_BX])
16#define REGS_CX(r) ((r)[HOST_CX])
17#define REGS_DX(r) ((r)[HOST_DX])
18#define REGS_SI(r) ((r)[HOST_SI])
19#define REGS_DI(r) ((r)[HOST_DI])
20#define REGS_BP(r) ((r)[HOST_BP])
21#define REGS_CS(r) ((r)[HOST_CS])
22#define REGS_SS(r) ((r)[HOST_SS])
23#define REGS_DS(r) ((r)[HOST_DS])
24#define REGS_ES(r) ((r)[HOST_ES])
25
26#define UPT_IP(r) REGS_IP((r)->gp)
27#define UPT_SP(r) REGS_SP((r)->gp)
28#define UPT_EFLAGS(r) REGS_EFLAGS((r)->gp)
29#define UPT_AX(r) REGS_AX((r)->gp)
30#define UPT_BX(r) REGS_BX((r)->gp)
31#define UPT_CX(r) REGS_CX((r)->gp)
32#define UPT_DX(r) REGS_DX((r)->gp)
33#define UPT_SI(r) REGS_SI((r)->gp)
34#define UPT_DI(r) REGS_DI((r)->gp)
35#define UPT_BP(r) REGS_BP((r)->gp)
36#define UPT_CS(r) REGS_CS((r)->gp)
37#define UPT_SS(r) REGS_SS((r)->gp)
38#define UPT_DS(r) REGS_DS((r)->gp)
39#define UPT_ES(r) REGS_ES((r)->gp)
40
41#ifdef __i386__
42#include "ptrace_32.h"
43#else
44#include "ptrace_64.h"
45#endif
46
47struct syscall_args {
48	unsigned long args[6];
49};
50
51#define SYSCALL_ARGS(r) ((struct syscall_args) \
52			 { .args = { UPT_SYSCALL_ARG1(r),	 \
53				     UPT_SYSCALL_ARG2(r),	 \
54				     UPT_SYSCALL_ARG3(r),	 \
55				     UPT_SYSCALL_ARG4(r),	 \
56				     UPT_SYSCALL_ARG5(r),	 \
57				     UPT_SYSCALL_ARG6(r) } } )
58
59struct uml_pt_regs {
60	unsigned long gp[MAX_REG_NR];
61	unsigned long fp[MAX_FP_NR];
62	struct faultinfo faultinfo;
63	long syscall;
64	int is_user;
65};
66
67#define EMPTY_UML_PT_REGS { }
68
69#define UPT_SYSCALL_NR(r) ((r)->syscall)
70#define UPT_FAULTINFO(r) (&(r)->faultinfo)
71#define UPT_IS_USER(r) ((r)->is_user)
72
73extern int user_context(unsigned long sp);
74
75#endif /* __SYSDEP_X86_PTRACE_H */
76