gdb/mips-linux-tdep.h

   1 /* Target-dependent code for GNU/Linux on MIPS processors.
   2
   3    Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 /* Copied from <asm/elf.h>.  */
  21 #define ELF_NGREG       45
  22 #define ELF_NFPREG      33
  23
  24 typedef unsigned char mips_elf_greg_t[4];
  25 typedef mips_elf_greg_t mips_elf_gregset_t[ELF_NGREG];
  26
  27 typedef unsigned char mips_elf_fpreg_t[8];
  28 typedef mips_elf_fpreg_t mips_elf_fpregset_t[ELF_NFPREG];
  29
  30 /* 0 - 31 are integer registers, 32 - 63 are fp registers.  */
  31 #define FPR_BASE        32
  32 #define PC              64
  33 #define CAUSE           65
  34 #define BADVADDR        66
  35 #define MMHI            67
  36 #define MMLO            68
  37 #define FPC_CSR         69
  38 #define FPC_EIR         70
  39
  40 #define EF_REG0                 6
  41 #define EF_REG31                37
  42 #define EF_LO                   38
  43 #define EF_HI                   39
  44 #define EF_CP0_EPC              40
  45 #define EF_CP0_BADVADDR         41
  46 #define EF_CP0_STATUS           42
  47 #define EF_CP0_CAUSE            43
  48
  49 #define EF_SIZE                 180
  50
  51 void mips_supply_gregset (struct regcache *, const mips_elf_gregset_t *);
  52 void mips_fill_gregset (const struct regcache *, mips_elf_gregset_t *, int);
  53 void mips_supply_fpregset (struct regcache *, const mips_elf_fpregset_t *);
  54 void mips_fill_fpregset (const struct regcache *, mips_elf_fpregset_t *, int);
  55
  56 /* 64-bit support.  */
  57
  58 /* Copied from <asm/elf.h>.  */
  59 #define MIPS64_ELF_NGREG       45
  60 #define MIPS64_ELF_NFPREG      33
  61
  62 typedef unsigned char mips64_elf_greg_t[8];
  63 typedef mips64_elf_greg_t mips64_elf_gregset_t[MIPS64_ELF_NGREG];
  64
  65 typedef unsigned char mips64_elf_fpreg_t[8];
  66 typedef mips64_elf_fpreg_t mips64_elf_fpregset_t[MIPS64_ELF_NFPREG];
  67
  68 /* 0 - 31 are integer registers, 32 - 63 are fp registers.  */
  69 #define MIPS64_FPR_BASE                 32
  70 #define MIPS64_PC                       64
  71 #define MIPS64_CAUSE                    65
  72 #define MIPS64_BADVADDR                 66
  73 #define MIPS64_MMHI                     67
  74 #define MIPS64_MMLO                     68
  75 #define MIPS64_FPC_CSR                  69
  76 #define MIPS64_FPC_EIR                  70
  77
  78 #define MIPS64_EF_REG0                   0
  79 #define MIPS64_EF_REG31                 31
  80 #define MIPS64_EF_LO                    32
  81 #define MIPS64_EF_HI                    33
  82 #define MIPS64_EF_CP0_EPC               34
  83 #define MIPS64_EF_CP0_BADVADDR          35
  84 #define MIPS64_EF_CP0_STATUS            36
  85 #define MIPS64_EF_CP0_CAUSE             37
  86
  87 #define MIPS64_EF_SIZE                  304
  88
  89 void mips64_supply_gregset (struct regcache *, const mips64_elf_gregset_t *);
  90 void mips64_fill_gregset (const struct regcache *, mips64_elf_gregset_t *, int);
  91 void mips64_supply_fpregset (struct regcache *, const mips64_elf_fpregset_t *);
  92 void mips64_fill_fpregset (const struct regcache *, mips64_elf_fpregset_t *, int);
  93
  94 enum {
  95   /* The Linux kernel stores an error code from any interrupted
  96      syscall in a "register" (in $0's save slot).  */
  97   MIPS_RESTART_REGNUM = MIPS_LAST_EMBED_REGNUM + 1
  98 };
  99
 100 /* Return 1 if MIPS_RESTART_REGNUM is usable.  */
 101
 102 int mips_linux_restart_reg_p (struct gdbarch *gdbarch);