gdb/arm-linux-tdep.h

   1 /* GNU/Linux on ARM target support, prototypes.
   2
   3    Copyright (C) 2006-2023 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 #ifndef ARM_LINUX_TDEP_H
  21 #define ARM_LINUX_TDEP_H
  22
  23 struct regset;
  24 struct regcache;
  25
  26 #define ARM_LINUX_SIZEOF_NWFPE (8 * ARM_FP_REGISTER_SIZE \
  27                                 + 2 * ARM_INT_REGISTER_SIZE \
  28                                 + 8 + ARM_INT_REGISTER_SIZE)
  29
  30 /* Support for register format used by the NWFPE FPA emulator.  Each
  31    register takes three words, where either the first one, two, or
  32    three hold a single, double, or extended precision value (depending
  33    on the corresponding tag).  The register set is eight registers,
  34    followed by the fpsr and fpcr, followed by eight tag bytes, and a
  35    final word flag which indicates whether NWFPE has been
  36    initialized.  */
  37
  38 #define NWFPE_FPSR_OFFSET (8 * ARM_FP_REGISTER_SIZE)
  39 #define NWFPE_FPCR_OFFSET (NWFPE_FPSR_OFFSET + ARM_INT_REGISTER_SIZE)
  40 #define NWFPE_TAGS_OFFSET (NWFPE_FPCR_OFFSET + ARM_INT_REGISTER_SIZE)
  41 #define NWFPE_INITFLAG_OFFSET (NWFPE_TAGS_OFFSET + 8)
  42
  43 void arm_linux_supply_gregset (const struct regset *regset,
  44                                struct regcache *regcache,
  45                                int regnum, const void *gregs_buf, size_t len);
  46 void arm_linux_collect_gregset (const struct regset *regset,
  47                                 const struct regcache *regcache,
  48                                 int regnum, void *gregs_buf, size_t len);
  49
  50 void supply_nwfpe_register (struct regcache *regcache, int regno,
  51                             const gdb_byte *regs);
  52 void collect_nwfpe_register (const struct regcache *regcache, int regno,
  53                              gdb_byte *regs);
  54
  55 void arm_linux_supply_nwfpe (const struct regset *regset,
  56                              struct regcache *regcache,
  57                              int regnum, const void *regs_buf, size_t len);
  58 void arm_linux_collect_nwfpe (const struct regset *regset,
  59                               const struct regcache *regcache,
  60                               int regnum, void *regs_buf, size_t len);
  61
  62 /* ARM GNU/Linux HWCAP values.  These are in defined in
  63    <asm/elf.h> in current kernels.  */
  64 #define HWCAP_VFP       64
  65 #define HWCAP_IWMMXT    512
  66 #define HWCAP_NEON      4096
  67 #define HWCAP_VFPv3     8192
  68 #define HWCAP_VFPv3D16  16384
  69
  70 #endif /* ARM_LINUX_TDEP_H */