gdb/or1k-tdep.h

   1 /* Definitions to target GDB to OpenRISC 1000 32-bit targets.
   2    Copyright (C) 2008-2024 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published by the Free
   8    Software Foundation; either version 3 of the License, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14    more details.
  15
  16    You should have received a copy of the GNU General Public License along
  17    With this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef OR1K_TDEP_H
  20 #define OR1K_TDEP_H
  21
  22 #ifndef TARGET_OR1K
  23 #define TARGET_OR1K
  24 #endif
  25
  26 /* Make cgen names unique to prevent ODR conflicts with other targets.  */
  27 #define GDB_CGEN_REMAP_PREFIX or1k
  28 #include "cgen-remap.h"
  29 #include "opcodes/or1k-desc.h"
  30 #include "opcodes/or1k-opc.h"
  31
  32 /* General Purpose Registers */
  33 #define OR1K_ZERO_REGNUM          0
  34 #define OR1K_SP_REGNUM            1
  35 #define OR1K_FP_REGNUM            2
  36 #define OR1K_FIRST_ARG_REGNUM     3
  37 #define OR1K_LAST_ARG_REGNUM      8
  38 #define OR1K_LR_REGNUM            9
  39 #define OR1K_FIRST_SAVED_REGNUM  10
  40 #define OR1K_RV_REGNUM           11
  41 #define OR1K_PPC_REGNUM          (OR1K_MAX_GPR_REGS + 0)
  42 #define OR1K_NPC_REGNUM          (OR1K_MAX_GPR_REGS + 1)
  43 #define OR1K_SR_REGNUM           (OR1K_MAX_GPR_REGS + 2)
  44
  45 /* Properties of the architecture. GDB mapping of registers is all the GPRs
  46    and SPRs followed by the PPC, NPC and SR at the end. Red zone is the area
  47    past the end of the stack reserved for exception handlers etc.  */
  48
  49 #define OR1K_MAX_GPR_REGS            32
  50 #define OR1K_NUM_PSEUDO_REGS         0
  51 #define OR1K_NUM_REGS               (OR1K_MAX_GPR_REGS + 3)
  52 #define OR1K_STACK_ALIGN             4
  53 #define OR1K_INSTLEN                 4
  54 #define OR1K_INSTBITLEN             (OR1K_INSTLEN * 8)
  55 #define OR1K_NUM_TAP_RECORDS         8
  56 #define OR1K_FRAME_RED_ZONE_SIZE     2536
  57
  58 /* Single step based on where the current instruction will take us.  */
  59 extern std::vector<CORE_ADDR> or1k_software_single_step
  60   (struct regcache *regcache);
  61
  62
  63 #endif /* OR1K_TDEP_H */