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

   1 /* Copyright (C) 2002-2015 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, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _SYS_USER_H
  19 #define _SYS_USER_H     1
  20
  21 #include <sgidefs.h>
  22
  23 /* The whole purpose of this file is for GDB and GDB only.  Don't read
  24    too much into it.  Don't use it for anything other than GDB unless
  25    you know what you are doing.  */
  26
  27 /* #include <asm/reg.h> */
  28 /* Instead of including the kernel header, that will vary depending on
  29    whether the 32- or the 64-bit kernel is installed, we paste its
  30    contents here.  Note that the fact that the file is inline here,
  31    instead of included separately, doesn't change in any way the
  32    licensing status of a program that includes user.h.  Since this is
  33    for gdb alone, and gdb is GPLed, no surprises here.  */
  34 #if _MIPS_SIM == _ABIO32
  35 /*
  36  * Various register offset definitions for debuggers, core file
  37  * examiners and whatnot.
  38  *
  39  * This file is subject to the terms and conditions of the GNU General Public
  40  * License.  See the file "COPYING" in the main directory of this archive
  41  * for more details.
  42  *
  43  * Copyright (C) 1995, 1999 by Ralf Baechle
  44  */
  45 #ifndef __ASM_MIPS_REG_H
  46 #define __ASM_MIPS_REG_H
  47
  48 /*
  49  * This defines/structures correspond to the register layout on stack -
  50  * if the order here is changed, it needs to be updated in
  51  * include/asm-mips/stackframe.h
  52  */
  53 #define EF_REG0                 6
  54 #define EF_REG1                 7
  55 #define EF_REG2                 8
  56 #define EF_REG3                 9
  57 #define EF_REG4                 10
  58 #define EF_REG5                 11
  59 #define EF_REG6                 12
  60 #define EF_REG7                 13
  61 #define EF_REG8                 14
  62 #define EF_REG9                 15
  63 #define EF_REG10                16
  64 #define EF_REG11                17
  65 #define EF_REG12                18
  66 #define EF_REG13                19
  67 #define EF_REG14                20
  68 #define EF_REG15                21
  69 #define EF_REG16                22
  70 #define EF_REG17                23
  71 #define EF_REG18                24
  72 #define EF_REG19                25
  73 #define EF_REG20                26
  74 #define EF_REG21                27
  75 #define EF_REG22                28
  76 #define EF_REG23                29
  77 #define EF_REG24                30
  78 #define EF_REG25                31
  79 /*
  80  * k0/k1 unsaved
  81  */
  82 #define EF_REG28                34
  83 #define EF_REG29                35
  84 #define EF_REG30                36
  85 #define EF_REG31                37
  86
  87 /*
  88  * Saved special registers
  89  */
  90 #define EF_LO                   38
  91 #define EF_HI                   39
  92
  93 #define EF_CP0_EPC              40
  94 #define EF_CP0_BADVADDR         41
  95 #define EF_CP0_STATUS           42
  96 #define EF_CP0_CAUSE            43
  97
  98 #define EF_SIZE                 180     /* size in bytes */
  99
 100 #endif /* __ASM_MIPS_REG_H */
 101
 102 #else /* _MIPS_SIM != _ABIO32 */
 103
 104 /*
 105  * Various register offset definitions for debuggers, core file
 106  * examiners and whatnot.
 107  *
 108  * This file is subject to the terms and conditions of the GNU General Public
 109  * License.  See the file "COPYING" in the main directory of this archive
 110  * for more details.
 111  *
 112  * Copyright (C) 1995, 1999 Ralf Baechle
 113  * Copyright (C) 1995, 1999 Silicon Graphics
 114  */
 115 #ifndef _ASM_REG_H
 116 #define _ASM_REG_H
 117
 118 /*
 119  * This defines/structures correspond to the register layout on stack -
 120  * if the order here is changed, it needs to be updated in
 121  * include/asm-mips/stackframe.h
 122  */
 123 #define EF_REG0                  0
 124 #define EF_REG1                  1
 125 #define EF_REG2                  2
 126 #define EF_REG3                  3
 127 #define EF_REG4                  4
 128 #define EF_REG5                  5
 129 #define EF_REG6                  6
 130 #define EF_REG7                  7
 131 #define EF_REG8                  8
 132 #define EF_REG9                  9
 133 #define EF_REG10                10
 134 #define EF_REG11                11
 135 #define EF_REG12                12
 136 #define EF_REG13                13
 137 #define EF_REG14                14
 138 #define EF_REG15                15
 139 #define EF_REG16                16
 140 #define EF_REG17                17
 141 #define EF_REG18                18
 142 #define EF_REG19                19
 143 #define EF_REG20                20
 144 #define EF_REG21                21
 145 #define EF_REG22                22
 146 #define EF_REG23                23
 147 #define EF_REG24                24
 148 #define EF_REG25                25
 149 /*
 150  * k0/k1 unsaved
 151  */
 152 #define EF_REG28                28
 153 #define EF_REG29                29
 154 #define EF_REG30                30
 155 #define EF_REG31                31
 156
 157 /*
 158  * Saved special registers
 159  */
 160 #define EF_LO                   32
 161 #define EF_HI                   33
 162
 163 #define EF_CP0_EPC              34
 164 #define EF_CP0_BADVADDR         35
 165 #define EF_CP0_STATUS           36
 166 #define EF_CP0_CAUSE            37
 167
 168 #define EF_SIZE                 304     /* size in bytes */
 169
 170 #endif /* _ASM_REG_H */
 171
 172 #endif /* _MIPS_SIM != _ABIO32 */
 173
 174 #if _MIPS_SIM == _ABIO32
 175
 176 struct user
 177 {
 178   unsigned long regs[EF_SIZE/4+64];     /* integer and fp regs */
 179   size_t        u_tsize;                /* text size (pages) */
 180   size_t        u_dsize;                /* data size (pages) */
 181   size_t        u_ssize;                /* stack size (pages) */
 182   unsigned long start_code;             /* text starting address */
 183   unsigned long start_data;             /* data starting address */
 184   unsigned long start_stack;            /* stack starting address */
 185   long int      signal;                 /* signal causing core dump */
 186   void*         u_ar0;                  /* help gdb find registers */
 187   unsigned long magic;                  /* identifies a core file */
 188   char          u_comm[32];             /* user command name */
 189 };
 190
 191 #else
 192
 193 struct user {
 194   __extension__ unsigned long   regs[EF_SIZE/8+64]; /* integer and fp regs */
 195   __extension__ unsigned long   u_tsize;        /* text size (pages) */
 196   __extension__ unsigned long   u_dsize;        /* data size (pages) */
 197   __extension__ unsigned long   u_ssize;        /* stack size (pages) */
 198   __extension__ unsigned long long start_code;  /* text starting address */
 199   __extension__ unsigned long long start_data;  /* data starting address */
 200   __extension__ unsigned long long start_stack; /* stack starting address */
 201   __extension__ long long       signal;         /* signal causing core dump */
 202   __extension__ unsigned long long u_ar0;       /* help gdb find registers */
 203   __extension__ unsigned long long magic;       /* identifies a core file */
 204   char          u_comm[32];             /* user command name */
 205 };
 206
 207 #endif
 208
 209 #define PAGE_SHIFT              12
 210 #define PAGE_SIZE               (1UL << PAGE_SHIFT)
 211 #define PAGE_MASK               (~(PAGE_SIZE-1))
 212 #define NBPG                    PAGE_SIZE
 213 #define UPAGES                  1
 214 #define HOST_TEXT_START_ADDR    (u.start_code)
 215 #define HOST_DATA_START_ADDR    (u.start_data)
 216 #define HOST_STACK_END_ADDR     (u.start_stack + u.u_ssize * NBPG)
 217
 218 #endif  /* _SYS_USER_H */