1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _ASM_X86_PTRACE_H
3#define _ASM_X86_PTRACE_H
4
5 /* For */
6#include <asm/ptrace-abi.h>
7#include <asm/processor-flags.h>
8
9
10#ifndef __ASSEMBLY__
11
12#ifdef __i386__
13/* this struct defines the way the registers are stored on the
14 stack during a system call. */
15
16
17struct pt_regs {
18 long ebx;
19 long ecx;
20 long edx;
21 long esi;
22 long edi;
23 long ebp;
24 long eax;
25 int xds;
26 int xes;
27 int xfs;
28 int xgs;
29 long orig_eax;
30 long eip;
31 int xcs;
32 long eflags;
33 long esp;
34 int xss;
35};
36
37
38#else /* __i386__ */
39
40
41struct pt_regs {
42/*
43 * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
44 * unless syscall needs a complete, fully filled "struct pt_regs".
45 */
46 unsigned long r15;
47 unsigned long r14;
48 unsigned long r13;
49 unsigned long r12;
50 unsigned long rbp;
51 unsigned long rbx;
52/* These regs are callee-clobbered. Always saved on kernel entry. */
53 unsigned long r11;
54 unsigned long r10;
55 unsigned long r9;
56 unsigned long r8;
57 unsigned long rax;
58 unsigned long rcx;
59 unsigned long rdx;
60 unsigned long rsi;
61 unsigned long rdi;
62/*
63 * On syscall entry, this is syscall#. On CPU exception, this is error code.
64 * On hw interrupt, it's IRQ number:
65 */
66 unsigned long orig_rax;
67/* Return frame for iretq */
68 unsigned long rip;
69 unsigned long cs;
70 unsigned long eflags;
71 unsigned long rsp;
72 unsigned long ss;
73/* top of stack page */
74};
75
76#endif /* !__i386__ */
77
78
79
80#endif /* !__ASSEMBLY__ */
81
82#endif /* _ASM_X86_PTRACE_H */
83