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/* ptrace register data format definitions. C-SKY version.
Copyright (C) 2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _SYS_USER_H
#define _SYS_USER_H 1
struct user_fpregs {
unsigned long fsr; /* FPU status reg. */
unsigned long fesr; /* FPU exception status reg. */
unsigned long fp[32]; /* FPU general regs. */
};
struct user_regs {
unsigned long int uregs[34]; /* CSKY V2 has 32 general rgister. */
};
/* When the kernel dumps core, it starts by dumping the user struct -
this will be used by gdb to figure out where the data and stack segments
are within the file, and what virtual addresses to use. */
struct user{
/* We start with the registers, to mimic the way that "memory" is returned
from the ptrace(3,...) function. */
struct user_regs regs; /* The registers are actually stored. */
int u_fpvalid; /* True if math co-processor being used. */
/* The rest of this junk is to help gdb figure out what goes where. */
unsigned long int u_tsize; /* Text segment size (pages). */
unsigned long int u_dsize; /* Data segment size (pages). */
unsigned long int u_ssize; /* Stack segment size (pages). */
unsigned long start_code; /* Starting virtual address of text. */
unsigned long 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. */
long int signal; /* Signal that caused the core dump. */
int reserved; /* No longer used. */
struct user_regs * u_ar0; /* Used by gdb to help find the values
for the registers. */
unsigned long magic; /* To uniquely identify a core file. */
char u_comm[32]; /* User command that was responsible. */
struct user_fpregs u_fp;
struct user_fpregs* u_fpstate; /* Math Co-processor pointer. */
};
#endif /* _SYS_USER_H */
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