1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_USER32_H
3#define _ASM_X86_USER32_H
4
5/* IA32 compatible user structures for ptrace.
6 * These should be used for 32bit coredumps too. */
7
8struct user_i387_ia32_struct {
9	u32	cwd;
10	u32	swd;
11	u32	twd;
12	u32	fip;
13	u32	fcs;
14	u32	foo;
15	u32	fos;
16	u32	st_space[20];   /* 8*10 bytes for each FP-reg = 80 bytes */
17};
18
19/* FSAVE frame with extensions */
20struct user32_fxsr_struct {
21	unsigned short	cwd;
22	unsigned short	swd;
23	unsigned short	twd;	/* not compatible to 64bit twd */
24	unsigned short	fop;
25	int	fip;
26	int	fcs;
27	int	foo;
28	int	fos;
29	int	mxcsr;
30	int	reserved;
31	int	st_space[32];	/* 8*16 bytes for each FP-reg = 128 bytes */
32	int	xmm_space[32];	/* 8*16 bytes for each XMM-reg = 128 bytes */
33	int	padding[56];
34};
35
36struct user_regs_struct32 {
37	__u32 ebx, ecx, edx, esi, edi, ebp, eax;
38	unsigned short ds, __ds, es, __es;
39	unsigned short fs, __fs, gs, __gs;
40	__u32 orig_eax, eip;
41	unsigned short cs, __cs;
42	__u32 eflags, esp;
43	unsigned short ss, __ss;
44};
45
46struct user32 {
47  struct user_regs_struct32 regs; /* Where the registers are actually stored */
48  int u_fpvalid;		/* True if math co-processor being used. */
49				/* for this mess. Not yet used. */
50  struct user_i387_ia32_struct i387;	/* Math Co-processor registers. */
51/* The rest of this junk is to help gdb figure out what goes where */
52  __u32 u_tsize;	/* Text segment size (pages). */
53  __u32 u_dsize;	/* Data segment size (pages). */
54  __u32 u_ssize;	/* Stack segment size (pages). */
55  __u32 start_code;     /* Starting virtual address of text. */
56  __u32 start_stack;	/* Starting virtual address of stack area.
57				   This is actually the bottom of the stack,
58				   the top of the stack is always found in the
59				   esp register.  */
60  __u32 signal;     		/* Signal that caused the core dump. */
61  int reserved;			/* No __u32er used */
62  __u32 u_ar0;	/* Used by gdb to help find the values for */
63				/* the registers. */
64  __u32 u_fpstate;	/* Math Co-processor pointer. */
65  __u32 magic;		/* To uniquely identify a core file */
66  char u_comm[32];		/* User command that was responsible */
67  int u_debugreg[8];
68};
69
70
71#endif /* _ASM_X86_USER32_H */
72