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 __ASSEMBLER__
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 /* !__ASSEMBLER__ */
81
82#endif /* _ASM_X86_PTRACE_H */