1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _ASM_X86_PTRACE_ABI_H
3#define _ASM_X86_PTRACE_ABI_H
4
5#ifdef __i386__
6
7#define EBX 0
8#define ECX 1
9#define EDX 2
10#define ESI 3
11#define EDI 4
12#define EBP 5
13#define EAX 6
14#define DS 7
15#define ES 8
16#define FS 9
17#define GS 10
18#define ORIG_EAX 11
19#define EIP 12
20#define CS 13
21#define EFL 14
22#define UESP 15
23#define SS 16
24#define FRAME_SIZE 17
25
26#else /* __i386__ */
27
28#if defined(__ASSEMBLER__) || defined(__FRAME_OFFSETS)
29/*
30 * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
31 * unless syscall needs a complete, fully filled "struct pt_regs".
32 */
33#define R15 0
34#define R14 8
35#define R13 16
36#define R12 24
37#define RBP 32
38#define RBX 40
39/* These regs are callee-clobbered. Always saved on kernel entry. */
40#define R11 48
41#define R10 56
42#define R9 64
43#define R8 72
44#define RAX 80
45#define RCX 88
46#define RDX 96
47#define RSI 104
48#define RDI 112
49/*
50 * On syscall entry, this is syscall#. On CPU exception, this is error code.
51 * On hw interrupt, it's IRQ number:
52 */
53#define ORIG_RAX 120
54/* Return frame for iretq */
55#define RIP 128
56#define CS 136
57#define EFLAGS 144
58#define RSP 152
59#define SS 160
60#endif /* __ASSEMBLER__ */
61
62/* top of stack page */
63#define FRAME_SIZE 168
64
65#endif /* !__i386__ */
66
67/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
68#define PTRACE_GETREGS 12
69#define PTRACE_SETREGS 13
70#define PTRACE_GETFPREGS 14
71#define PTRACE_SETFPREGS 15
72#define PTRACE_GETFPXREGS 18
73#define PTRACE_SETFPXREGS 19
74
75#define PTRACE_OLDSETOPTIONS 21
76
77/* only useful for access 32bit programs / kernels */
78#define PTRACE_GET_THREAD_AREA 25
79#define PTRACE_SET_THREAD_AREA 26
80
81#ifdef __x86_64__
82# define PTRACE_ARCH_PRCTL 30
83#endif
84
85#define PTRACE_SYSEMU 31
86#define PTRACE_SYSEMU_SINGLESTEP 32
87
88#define PTRACE_SINGLEBLOCK 33 /* resume execution until next branch */
89
90#ifndef __ASSEMBLER__
91#include <linux/types.h>
92#endif
93
94#endif /* _ASM_X86_PTRACE_ABI_H */
95