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
8 struct 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 */
20 struct 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
36 struct 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
46 struct 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 */