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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_USER32_H
#define _ASM_X86_USER32_H
/* IA32 compatible user structures for ptrace.
* These should be used for 32bit coredumps too. */
struct user_i387_ia32_struct {
u32 cwd;
u32 swd;
u32 twd;
u32 fip;
u32 fcs;
u32 foo;
u32 fos;
u32 st_space[20]; /* 8*10 bytes for each FP-reg = 80 bytes */
/* FSAVE frame with extensions */
struct user32_fxsr_struct {
unsigned short cwd;
unsigned short swd;
unsigned short twd; /* not compatible to 64bit twd */
unsigned short fop;
int fip;
int fcs;
int foo;
int fos;
int mxcsr;
int reserved;
int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
int padding[56];
struct user_regs_struct32 {
__u32 ebx, ecx, edx, esi, edi, ebp, eax;
unsigned short ds, __ds, es, __es;
unsigned short fs, __fs, gs, __gs;
__u32 orig_eax, eip;
unsigned short cs, __cs;
__u32 eflags, esp;
unsigned short ss, __ss;
struct user32 {
struct user_regs_struct32 regs; /* Where the registers are actually stored */
int u_fpvalid; /* True if math co-processor being used. */
/* for this mess. Not yet used. */
struct user_i387_ia32_struct i387; /* Math Co-processor registers. */
/* The rest of this junk is to help gdb figure out what goes where */
__u32 u_tsize; /* Text segment size (pages). */
__u32 u_dsize; /* Data segment size (pages). */
__u32 u_ssize; /* Stack segment size (pages). */
__u32 start_code; /* Starting virtual address of text. */
__u32 start_stack; /* Starting virtual address of stack area.
This is actually the bottom of the stack,
the top of the stack is always found in the
esp register. */
__u32 signal; /* Signal that caused the core dump. */
int reserved; /* No __u32er used */
__u32 u_ar0; /* Used by gdb to help find the values for */
/* the registers. */
__u32 u_fpstate; /* Math Co-processor pointer. */
__u32 magic; /* To uniquely identify a core file */
char u_comm[32]; /* User command that was responsible */
int u_debugreg[8];
#endif /* _ASM_X86_USER32_H */