gdb/arch/arm-get-next-pcs.h

   1 /* Common code for ARM software single stepping support.
   2
   3    Copyright (C) 1988-2016 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_GET_NEXT_PCS_H
  21 #define ARM_GET_NEXT_PCS_H 1
  22
  23 /* Forward declaration.  */
  24 struct arm_get_next_pcs;
  25
  26 /* get_next_pcs operations.  */
  27 struct arm_get_next_pcs_ops
  28 {
  29   ULONGEST (*read_mem_uint) (CORE_ADDR memaddr, int len, int byte_order);
  30   CORE_ADDR (*syscall_next_pc) (struct arm_get_next_pcs *self, CORE_ADDR pc);
  31   CORE_ADDR (*addr_bits_remove) (struct arm_get_next_pcs *self, CORE_ADDR val);
  32   int (*is_thumb) (struct arm_get_next_pcs *self);
  33 };
  34
  35 /* Context for a get_next_pcs call on ARM.  */
  36 struct arm_get_next_pcs
  37 {
  38   /* Operations implementations.  */
  39   struct arm_get_next_pcs_ops *ops;
  40   /* Byte order for data.  */
  41   int byte_order;
  42   /* Byte order for code.  */
  43   int byte_order_for_code;
  44   /* Thumb2 breakpoint instruction.  */
  45   const gdb_byte *arm_thumb2_breakpoint;
  46   /* Registry cache.  */
  47   struct regcache *regcache;
  48 };
  49
  50 /* Initialize arm_get_next_pcs.  */
  51 void arm_get_next_pcs_ctor (struct arm_get_next_pcs *self,
  52                             struct arm_get_next_pcs_ops *ops,
  53                             int byte_order,
  54                             int byte_order_for_code,
  55                             const gdb_byte *arm_thumb2_breakpoint,
  56                             struct regcache *regcache);
  57
  58 /* Find the next possible PCs after the current instruction executes.  */
  59 VEC (CORE_ADDR) *arm_get_next_pcs (struct arm_get_next_pcs *self,
  60                                    CORE_ADDR pc);
  61
  62 #endif /* ARM_GET_NEXT_PCS_H */