gdb/arm-linux-tdep.h

   1 /* GNU/Linux on ARM target support, prototypes.
   2
   3    Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011
   4    Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 struct regset;
  22 struct regcache;
  23
  24 #define ARM_LINUX_SIZEOF_NWFPE (8 * FP_REGISTER_SIZE \
  25                                 + 2 * INT_REGISTER_SIZE \
  26                                 + 8 + INT_REGISTER_SIZE)
  27
  28 /* The index to access CSPR in user_regs defined in GLIBC.  */
  29 #define ARM_CPSR_GREGNUM 16
  30
  31 /* Support for register format used by the NWFPE FPA emulator.  Each
  32    register takes three words, where either the first one, two, or
  33    three hold a single, double, or extended precision value (depending
  34    on the corresponding tag).  The register set is eight registers,
  35    followed by the fpsr and fpcr, followed by eight tag bytes, and a
  36    final word flag which indicates whether NWFPE has been
  37    initialized.  */
  38
  39 #define NWFPE_FPSR_OFFSET (8 * FP_REGISTER_SIZE)
  40 #define NWFPE_FPCR_OFFSET (NWFPE_FPSR_OFFSET + INT_REGISTER_SIZE)
  41 #define NWFPE_TAGS_OFFSET (NWFPE_FPCR_OFFSET + INT_REGISTER_SIZE)
  42 #define NWFPE_INITFLAG_OFFSET (NWFPE_TAGS_OFFSET + 8)
  43
  44 void arm_linux_supply_gregset (const struct regset *regset,
  45                                struct regcache *regcache,
  46                                int regnum, const void *gregs_buf, size_t len);
  47 void arm_linux_collect_gregset (const struct regset *regset,
  48                                 const struct regcache *regcache,
  49                                 int regnum, void *gregs_buf, size_t len);
  50
  51 void supply_nwfpe_register (struct regcache *regcache, int regno,
  52                             const gdb_byte *regs);
  53 void collect_nwfpe_register (const struct regcache *regcache, int regno,
  54                              gdb_byte *regs);
  55
  56 void arm_linux_supply_nwfpe (const struct regset *regset,
  57                              struct regcache *regcache,
  58                              int regnum, const void *regs_buf, size_t len);
  59 void arm_linux_collect_nwfpe (const struct regset *regset,
  60                               const struct regcache *regcache,
  61                               int regnum, void *regs_buf, size_t len);
  62
  63 /* ARM GNU/Linux HWCAP values.  These are in defined in
  64    <asm/elf.h> in current kernels.  */
  65 #define HWCAP_VFP       64
  66 #define HWCAP_IWMMXT    512
  67 #define HWCAP_NEON      4096
  68 #define HWCAP_VFPv3     8192
  69 #define HWCAP_VFPv3D16  16384
  70