ptrace.h

 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
47extern unsigned long host_fp_size;
48
49struct uml_pt_regs {
50	unsigned long gp[MAX_REG_NR];
51	struct faultinfo faultinfo;
52	long syscall;
53	int is_user;
54
55	/* Dynamically sized FP registers (holds an XSTATE) */
56	unsigned long fp[];
57};
58
59#define EMPTY_UML_PT_REGS { }
60
61#define UPT_SYSCALL_NR(r) ((r)->syscall)
62#define UPT_FAULTINFO(r) (&(r)->faultinfo)
63#define UPT_IS_USER(r) ((r)->is_user)
64
65extern int arch_init_registers(int pid);
66
67#endif /* __SYSDEP_X86_PTRACE_H */