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72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/* Copyright (C) 1998-2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _SYS_USER_H
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#define _SYS_USER_H 1
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/* The whole purpose of this file is for GDB and GDB only. Don't read
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too much into it. Don't use it for anything other than GDB unless
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you know what you are doing. */
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struct user_fpregs
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{
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struct fp_reg
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{
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unsigned int sign1:1;
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unsigned int unused:15;
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unsigned int sign2:1;
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unsigned int exponent:14;
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unsigned int j:1;
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unsigned int mantissa1:31;
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unsigned int mantissa0:32;
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} fpregs[8];
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unsigned int fpsr:32;
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unsigned int fpcr:32;
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unsigned char ftype[8];
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unsigned int init_flag;
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};
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struct user_regs
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{
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unsigned long int uregs[18];
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};
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struct user
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{
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struct user_regs regs; /* General registers */
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int u_fpvalid; /* True if math co-processor being used. */
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unsigned long int u_tsize; /* Text segment size (pages). */
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unsigned long int u_dsize; /* Data segment size (pages). */
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unsigned long int u_ssize; /* Stack segment size (pages). */
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unsigned long start_code; /* Starting virtual address of text. */
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unsigned long start_stack; /* Starting virtual address of stack. */
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long int signal; /* Signal that caused the core dump. */
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int reserved; /* No longer used */
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struct user_regs *u_ar0; /* help gdb to find the general registers. */
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unsigned long magic; /* uniquely identify a core file */
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char u_comm[32]; /* User command that was responsible */
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int u_debugreg[8];
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struct user_fpregs u_fp; /* Floating point registers */
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struct user_fpregs *u_fp0; /* help gdb to find the FP registers. */
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};
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#endif /* sys/user.h */
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