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

   1 /* Copyright (C) 2002, 2003, 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 #include <sgidefs.h>
  23
  24 /* The whole purpose of this file is for GDB and GDB only.  Don't read
  25    too much into it.  Don't use it for anything other than GDB unless
  26    you know what you are doing.  */
  27
  28 /* #include <asm/reg.h> */
  29 /* Instead of including the kernel header, that will vary depending on
  30    whether the 32- or the 64-bit kernel is installed, we paste its
  31    contents here.  Note that the fact that the file is inline here,
  32    instead of included separately, doesn't change in any way the
  33    licensing status of a program that includes user.h.  Since this is
  34    for gdb alone, and gdb is GPLed, no surprises here.  */
  35 #if _MIPS_SIM == _ABIO32
  36 /*
  37  * Various register offset definitions for debuggers, core file
  38  * examiners and whatnot.
  39  *
  40  * This file is subject to the terms and conditions of the GNU General Public
  41  * License.  See the file "COPYING" in the main directory of this archive
  42  * for more details.
  43  *
  44  * Copyright (C) 1995, 1999 by Ralf Baechle
  45  */
  46 #ifndef __ASM_MIPS_REG_H
  47 #define __ASM_MIPS_REG_H
  48
  49 /*
  50  * This defines/structures correspond to the register layout on stack -
  51  * if the order here is changed, it needs to be updated in
  52  * include/asm-mips/stackframe.h
  53  */
  54 #define EF_REG0                 6
  55 #define EF_REG1                 7
  56 #define EF_REG2                 8
  57 #define EF_REG3                 9
  58 #define EF_REG4                 10
  59 #define EF_REG5                 11
  60 #define EF_REG6                 12
  61 #define EF_REG7                 13
  62 #define EF_REG8                 14
  63 #define EF_REG9                 15
  64 #define EF_REG10                16
  65 #define EF_REG11                17
  66 #define EF_REG12                18
  67 #define EF_REG13                19
  68 #define EF_REG14                20
  69 #define EF_REG15                21
  70 #define EF_REG16                22
  71 #define EF_REG17                23
  72 #define EF_REG18                24
  73 #define EF_REG19                25
  74 #define EF_REG20                26
  75 #define EF_REG21                27
  76 #define EF_REG22                28
  77 #define EF_REG23                29
  78 #define EF_REG24                30
  79 #define EF_REG25                31
  80 /*
  81  * k0/k1 unsaved
  82  */
  83 #define EF_REG28                34
  84 #define EF_REG29                35
  85 #define EF_REG30                36
  86 #define EF_REG31                37
  87
  88 /*
  89  * Saved special registers
  90  */
  91 #define EF_LO                   38
  92 #define EF_HI                   39
  93
  94 #define EF_CP0_EPC              40
  95 #define EF_CP0_BADVADDR         41
  96 #define EF_CP0_STATUS           42
  97 #define EF_CP0_CAUSE            43
  98
  99 #define EF_SIZE                 180     /* size in bytes */
 100
 101 #endif /* __ASM_MIPS_REG_H */
 102
 103 #else /* _MIPS_SIM != _ABIO32 */
 104
 105 /*
 106  * Various register offset definitions for debuggers, core file
 107  * examiners and whatnot.
 108  *
 109  * This file is subject to the terms and conditions of the GNU General Public
 110  * License.  See the file "COPYING" in the main directory of this archive
 111  * for more details.
 112  *
 113  * Copyright (C) 1995, 1999 Ralf Baechle
 114  * Copyright (C) 1995, 1999 Silicon Graphics
 115  */
 116 #ifndef _ASM_REG_H
 117 #define _ASM_REG_H
 118
 119 /*
 120  * This defines/structures correspond to the register layout on stack -
 121  * if the order here is changed, it needs to be updated in
 122  * include/asm-mips/stackframe.h
 123  */
 124 #define EF_REG0                  0
 125 #define EF_REG1                  1
 126 #define EF_REG2                  2
 127 #define EF_REG3                  3
 128 #define EF_REG4                  4
 129 #define EF_REG5                  5
 130 #define EF_REG6                  6
 131 #define EF_REG7                  7
 132 #define EF_REG8                  8
 133 #define EF_REG9                  9
 134 #define EF_REG10                10
 135 #define EF_REG11                11
 136 #define EF_REG12                12
 137 #define EF_REG13                13
 138 #define EF_REG14                14
 139 #define EF_REG15                15
 140 #define EF_REG16                16
 141 #define EF_REG17                17
 142 #define EF_REG18                18
 143 #define EF_REG19                19
 144 #define EF_REG20                20
 145 #define EF_REG21                21
 146 #define EF_REG22                22
 147 #define EF_REG23                23
 148 #define EF_REG24                24
 149 #define EF_REG25                25
 150 /*
 151  * k0/k1 unsaved
 152  */
 153 #define EF_REG28                28
 154 #define EF_REG29                29
 155 #define EF_REG30                30
 156 #define EF_REG31                31
 157
 158 /*
 159  * Saved special registers
 160  */
 161 #define EF_LO                   32
 162 #define EF_HI                   33
 163
 164 #define EF_CP0_EPC              34
 165 #define EF_CP0_BADVADDR         35
 166 #define EF_CP0_STATUS           36
 167 #define EF_CP0_CAUSE            37
 168
 169 #define EF_SIZE                 304     /* size in bytes */
 170
 171 #endif /* _ASM_REG_H */
 172
 173 #endif /* _MIPS_SIM != _ABIO32 */
 174
 175 #if _MIPS_SIM == _ABIO32
 176
 177 struct user
 178 {
 179   unsigned long regs[EF_SIZE/4+64];     /* integer and fp regs */
 180   size_t        u_tsize;                /* text size (pages) */
 181   size_t        u_dsize;                /* data size (pages) */
 182   size_t        u_ssize;                /* stack size (pages) */
 183   unsigned long start_code;             /* text starting address */
 184   unsigned long start_data;             /* data starting address */
 185   unsigned long start_stack;            /* stack starting address */
 186   long int      signal;                 /* signal causing core dump */
 187   void*         u_ar0;                  /* help gdb find registers */
 188   unsigned long magic;                  /* identifies a core file */
 189   char          u_comm[32];             /* user command name */
 190 };
 191
 192 #else
 193
 194 struct user {
 195   __extension__ unsigned long   regs[EF_SIZE/8+64]; /* integer and fp regs */
 196   __extension__ unsigned long   u_tsize;        /* text size (pages) */
 197   __extension__ unsigned long   u_dsize;        /* data size (pages) */
 198   __extension__ unsigned long   u_ssize;        /* stack size (pages) */
 199   __extension__ unsigned long long start_code;  /* text starting address */
 200   __extension__ unsigned long long start_data;  /* data starting address */
 201   __extension__ unsigned long long start_stack; /* stack starting address */
 202   __extension__ long long       signal;         /* signal causing core dump */
 203   __extension__ unsigned long long u_ar0;       /* help gdb find registers */
 204   __extension__ unsigned long long magic;       /* identifies a core file */
 205   char          u_comm[32];             /* user command name */
 206 };
 207
 208 #endif
 209
 210 #define PAGE_SHIFT              12
 211 #define PAGE_SIZE               (1UL << PAGE_SHIFT)
 212 #define PAGE_MASK               (~(PAGE_SIZE-1))
 213 #define NBPG                    PAGE_SIZE
 214 #define UPAGES                  1
 215 #define HOST_TEXT_START_ADDR    (u.start_code)
 216 #define HOST_DATA_START_ADDR    (u.start_data)
 217 #define HOST_STACK_END_ADDR     (u.start_stack + u.u_ssize * NBPG)
 218
 219 #endif  /* _SYS_USER_H */