110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
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/* -*-comment-start: "//";comment-end:""-*-
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* Mes --- Maxwell Equations of Software
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* Copyright © 2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of Mes.
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*
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* Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MES_SYS_USER_H
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#define __MES_SYS_USER_H 1
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#if __GNUC__ && POSIX
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#undef __MES_SYS_USER_H
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#include_next <sys/user.h>
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#else // !(__GNUC__ && POSIX)
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/* These are the 32-bit x86 structures. */
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struct user_fpregs_struct
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{
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long int cwd;
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long int swd;
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long int twd;
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long int fip;
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long int fcs;
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long int foo;
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long int fos;
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long int st_space [20];
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};
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struct user_fpxregs_struct
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{
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unsigned short int cwd;
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unsigned short int swd;
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unsigned short int twd;
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unsigned short int fop;
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long int fip;
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long int fcs;
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long int foo;
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long int fos;
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long int mxcsr;
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long int reserved;
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long int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
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long int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
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long int padding[56];
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};
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struct user_regs_struct
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{
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long int ebx;
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long int ecx;
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long int edx;
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long int esi;
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long int edi;
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long int ebp;
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long int eax;
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long int xds;
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long int xes;
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long int xfs;
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long int xgs;
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long int orig_eax;
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long int eip;
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long int xcs;
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long int eflags;
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long int esp;
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long int xss;
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};
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struct user
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{
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struct user_regs_struct regs;
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int u_fpvalid;
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struct user_fpregs_struct i387;
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unsigned long int u_tsize;
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unsigned long int u_dsize;
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unsigned long int u_ssize;
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unsigned long int start_code;
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unsigned long int start_stack;
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long int signal;
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int reserved;
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struct user_regs_struct* u_ar0;
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struct user_fpregs_struct* u_fpstate;
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unsigned long int magic;
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char u_comm [32];
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int u_debugreg [8];
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};
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (1UL << PAGE_SHIFT)
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#define PAGE_MASK (~(PAGE_SIZE-1))
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#define NBPG PAGE_SIZE
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#define UPAGES 1
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#define HOST_TEXT_START_ADDR (u.start_code)
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#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
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#endif // !(__GNUC__ && POSIX)
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#endif // __MES_SYS_USER_H
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