sysdeps/unix/sysv/linux/x86_64/sys/user.h

   1 /* Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _SYS_USER_H
  20 #define _SYS_USER_H     1
  21
  22 /* The whole purpose of this file is for GDB and GDB only.  Don't read
  23    too much into it.  Don't use it for anything other than GDB unless
  24    you know what you are doing.  */
  25
  26 #include <bits/wordsize.h>
  27
  28 #if __WORDSIZE == 64
  29
  30 struct user_fpregs_struct
  31 {
  32   __uint16_t            cwd;
  33   __uint16_t            swd;
  34   __uint16_t            ftw;
  35   __uint16_t            fop;
  36   __uint64_t            rip;
  37   __uint64_t            rdp;
  38   __uint32_t            mxcsr;
  39   __uint32_t            mxcr_mask;
  40   __uint32_t            st_space[32];   /* 8*16 bytes for each FP-reg = 128 bytes */
  41   __uint32_t            xmm_space[64];  /* 16*16 bytes for each XMM-reg = 256 bytes */
  42   __uint32_t            padding[24];
  43 };
  44
  45 struct user_regs_struct
  46 {
  47   unsigned long r15;
  48   unsigned long r14;
  49   unsigned long r13;
  50   unsigned long r12;
  51   unsigned long rbp;
  52   unsigned long rbx;
  53   unsigned long r11;
  54   unsigned long r10;
  55   unsigned long r9;
  56   unsigned long r8;
  57   unsigned long rax;
  58   unsigned long rcx;
  59   unsigned long rdx;
  60   unsigned long rsi;
  61   unsigned long rdi;
  62   unsigned long orig_rax;
  63   unsigned long rip;
  64   unsigned long cs;
  65   unsigned long eflags;
  66   unsigned long rsp;
  67   unsigned long ss;
  68   unsigned long fs_base;
  69   unsigned long gs_base;
  70   unsigned long ds;
  71   unsigned long es;
  72   unsigned long fs;
  73   unsigned long gs;
  74 };
  75
  76 struct user
  77 {
  78   struct user_regs_struct       regs;
  79   int                           u_fpvalid;
  80   struct user_fpregs_struct     i387;
  81   unsigned long int             u_tsize;
  82   unsigned long int             u_dsize;
  83   unsigned long int             u_ssize;
  84   unsigned long                 start_code;
  85   unsigned long                 start_stack;
  86   long int                      signal;
  87   int                           reserved;
  88   struct user_regs_struct*      u_ar0;
  89   struct user_fpregs_struct*    u_fpstate;
  90   unsigned long int             magic;
  91   char                          u_comm [32];
  92   unsigned long int             u_debugreg [8];
  93 };
  94
  95 #else
  96 /* These are the 32-bit x86 structures.  */
  97 struct user_fpregs_struct
  98 {
  99   long int cwd;
 100   long int swd;
 101   long int twd;
 102   long int fip;
 103   long int fcs;
 104   long int foo;
 105   long int fos;
 106   long int st_space [20];
 107 };
 108
 109 struct user_fpxregs_struct
 110 {
 111   unsigned short int cwd;
 112   unsigned short int swd;
 113   unsigned short int twd;
 114   unsigned short int fop;
 115   long int fip;
 116   long int fcs;
 117   long int foo;
 118   long int fos;
 119   long int mxcsr;
 120   long int reserved;
 121   long int st_space[32];   /* 8*16 bytes for each FP-reg = 128 bytes */
 122   long int xmm_space[32];  /* 8*16 bytes for each XMM-reg = 128 bytes */
 123   long int padding[56];
 124 };
 125
 126 struct user_regs_struct
 127 {
 128   long int ebx;
 129   long int ecx;
 130   long int edx;
 131   long int esi;
 132   long int edi;
 133   long int ebp;
 134   long int eax;
 135   long int xds;
 136   long int xes;
 137   long int xfs;
 138   long int xgs;
 139   long int orig_eax;
 140   long int eip;
 141   long int xcs;
 142   long int eflags;
 143   long int esp;
 144   long int xss;
 145 };
 146
 147 struct user
 148 {
 149   struct user_regs_struct       regs;
 150   int                           u_fpvalid;
 151   struct user_fpregs_struct     i387;
 152   unsigned long int             u_tsize;
 153   unsigned long int             u_dsize;
 154   unsigned long int             u_ssize;
 155   unsigned long                 start_code;
 156   unsigned long                 start_stack;
 157   long int                      signal;
 158   int                           reserved;
 159   struct user_regs_struct*      u_ar0;
 160   struct user_fpregs_struct*    u_fpstate;
 161   unsigned long int             magic;
 162   char                          u_comm [32];
 163   int                           u_debugreg [8];
 164 };
 165 #endif  /* __WORDSIZE */
 166
 167 #define PAGE_SHIFT              12
 168 #define PAGE_SIZE               (1UL << PAGE_SHIFT)
 169 #define PAGE_MASK               (~(PAGE_SIZE-1))
 170 #define NBPG                    PAGE_SIZE
 171 #define UPAGES                  1
 172 #define HOST_TEXT_START_ADDR    (u.start_code)
 173 #define HOST_STACK_END_ADDR     (u.start_stack + u.u_ssize * NBPG)
 174
 175 #endif  /* _SYS_USER_H */