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/* -*-comment-start: "//";comment-end:""-*-
* GNU Mes --- Maxwell Equations of Software
* Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of GNU Mes.
*
* GNU Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* GNU Mes 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MES_SYS_USER_H
#define __MES_SYS_USER_H 1
#if SYSTEM_LIBC
#undef __MES_SYS_USER_H
#include_next <sys/user.h>
#else // ! SYSTEM_LIBC
/* These are the 32-bit x86 structures. */
struct user_fpregs_struct
{
long int cwd;
long int swd;
long int twd;
long int fip;
long int fcs;
long int foo;
long int fos;
long int st_space[20];
};
struct user_fpxregs_struct
{
unsigned short int cwd;
unsigned short int swd;
unsigned short int twd;
unsigned short int fop;
long int fip;
long int fcs;
long int foo;
long int fos;
long int mxcsr;
long int reserved;
long int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
long int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
long int padding[56];
};
struct user_regs_struct
{
long int ebx;
long int ecx;
long int edx;
long int esi;
long int edi;
long int ebp;
long int eax;
long int xds;
long int xes;
long int xfs;
long int xgs;
long int orig_eax;
long int eip;
long int xcs;
long int eflags;
long int esp;
long int xss;
};
// *INDENT-OFF*
struct user
{
struct user_regs_struct regs;
int u_fpvalid;
struct user_fpregs_struct i387;
unsigned long int u_tsize;
unsigned long int u_dsize;
unsigned long int u_ssize;
unsigned long int start_code;
unsigned long int start_stack;
long int signal;
int reserved;
struct user_regs_struct *u_ar0;
struct user_fpregs_struct *u_fpstate;
unsigned long int magic;
char u_comm [32];
int u_debugreg [8];
};
#define PAGE_SHIFT 12
#define PAGE_SIZE (1UL << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#define NBPG PAGE_SIZE
#define UPAGES 1
#define HOST_TEXT_START_ADDR (u.start_code)
#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
// *INDENT-ON*
#endif // ! SYSTEM_LIBC
#endif // __MES_SYS_USER_H
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