| /* Target dependent code for ARC processor family, for GDB, the GNU debugger. |
| |
| Copyright 2008, 2009 Free Software Foundation, Inc. |
| |
| Contributed by ARC International (www.arc.com) |
| |
| Authors: |
| Richard Stuckey <richard.stuckey@arc.com> |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| /******************************************************************************/ |
| /* */ |
| /* Outline: */ |
| /* This header file defines operations for manipulating the ARC processor */ |
| /* core registers and auxiliary registers. */ |
| /* */ |
| /******************************************************************************/ |
| |
| #ifndef ARC_REGISTERS_H |
| #define ARC_REGISTERS_H |
| |
| /* gdb header files */ |
| #include "defs.h" |
| #include "gdbarch.h" |
| |
| /* ARC header files */ |
| #include "arc-support.h" |
| #include "arc-tdep.h" |
| #include "arc-architecture.h" |
| |
| |
| #define REGISTER_DEFINITION_FILE "arc-registers.xml" |
| |
| |
| /* ARC aux registers with known (well-defined) numbers. */ |
| #define ARC_HW_LP_START_REGNUM (ARC_RegisterNumber) 0x2 |
| #define ARC_HW_LP_END_REGNUM (ARC_RegisterNumber) 0x3 |
| #define ARC_HW_IDENTITY_REGNUM (ARC_RegisterNumber) 0x4 |
| #define ARC_HW_DEBUG_REGNUM (ARC_RegisterNumber) 0x5 |
| #define ARC_HW_PC_REGNUM (ARC_RegisterNumber) 0x6 |
| #define ARC_HW_STATUS32_REGNUM (ARC_RegisterNumber) 0xA |
| |
| /* Specific ARCangel aux registers for caches. */ |
| #define ARC_HW_IC_IVIC_REGNUM (ARC_RegisterNumber) 0x10 /* Invalidate ICache. */ |
| #define ARC_HW_IC_CTRL_REGNUM (ARC_RegisterNumber) 0x11 /* Disable ICache. */ |
| #define ARC_HW_DC_IVDC_REGNUM (ARC_RegisterNumber) 0x47 /* Invalidate DCache. */ |
| #define ARC_HW_DC_CTRL_REGNUM (ARC_RegisterNumber) 0x48 /* Disable DCache. */ |
| |
| /* BCRs. */ |
| #define ARC_HW_MEMSUBSYS_REGNUM (ARC_RegisterNumber) 0x67 |
| #define ARC_HW_AP_BUILD_REGNUM (ARC_RegisterNumber) 0x76 |
| |
| /* Auxiliary registers for actionpoint 0 (there are up to 8 sets of these). */ |
| #define ARC_HW_AMV0_REGNUM (ARC_RegisterNumber) 0x220 |
| #define ARC_HW_AMM0_REGNUM (ARC_RegisterNumber) 0x221 |
| #define ARC_HW_AC0_REGNUM (ARC_RegisterNumber) 0x222 |
| |
| |
| /* Bit masks for use with the cache-related auxiliary registers. */ |
| #define IC_IVIC_IV 0x00000001 |
| #define DC_IVDC_IV 0x00000001 |
| #define IC_CTRL_DC 0x00000001 |
| #define DC_CTRL_DC 0x00000001 |
| #define DC_CTRL_IM 0x00000040 |
| |
| |
| /* Bit masks for use with the auxiliary DEBUG, IDENTITY, STATUS32 and AP_BUILD registers. */ |
| #define DEBUG_SH 0x40000000 |
| #define DEBUG_BH 0x20000000 |
| #define DEBUG_USER 0x10000000 |
| #define DEBUG_ACTIONPOINT_HALT 0x00000004 |
| #define DEBUG_ACTIONPOINT_STATUS 0x000007F8 |
| #define DEBUG_ACTIONPOINT_STATUS_SHIFT 3 |
| #define DEBUG_FORCE_HALT 0x00000002 |
| #define DEBUG_INSTRUCTION_STEP 0x00000800 |
| #define DEBUG_SINGLE_STEP 0x00000001 |
| #define DEBUG_LOAD_PENDING 0x80000000 |
| #define IDENTITY_ARCVER 0x000000FF |
| #define STATUS32_USER 0x00000080 |
| #define STATUS32_L 0x00000100 |
| #define STATUS32_HALT 0x00000001 |
| #define AP_BUILD_VERSION 0x000000FF |
| #define AP_BUILD_TYPE 0x00000F00 |
| #define AP_BUILD_TYPE_SHIFT 8 |
| |
| |
| typedef enum register_access |
| { |
| READ_ONLY, |
| READ_WRITE, |
| WRITE_ONLY |
| } RegisterAccess; |
| |
| |
| struct core_register_definition |
| { |
| int gdb_regno; |
| ARC_Word mask; |
| RegisterAccess access; |
| Boolean exists; |
| }; |
| |
| |
| /* The type 'struct aux_register_definition' is incomplete: it is private to this |
| module. */ |
| typedef struct aux_register_definition ARC_AuxRegisterDefinition; |
| typedef struct core_register_definition ARC_CoreRegisterDefinition; |
| |
| |
| /* This type is essentially private: no access to any of its fields should |
| be performed outside of this module. */ |
| typedef struct _register_info |
| { |
| ARC_ProcessorVersion processor; |
| ARC_AuxRegisterDefinition *aux_registers; |
| unsigned int aux_register_count; |
| int first_aux_gdb_regno; |
| unsigned int max_name_length; |
| int PC_number; |
| ARC_CoreRegisterDefinition core_registers[ARC_MAX_CORE_REGS]; |
| unsigned int core_register_count; |
| } ARC_RegisterInfo; |
| |
| |
| typedef void (*ARC_AuxRegisterFunction)(ARC_AuxRegisterDefinition *def, void *data); |
| |
| |
| extern Boolean arc_pending_register_architecture_change_event; |
| |
| |
| /* Initialization functions. */ |
| |
| void arc_initialize_aux_reg_info (ARC_RegisterInfo *info); |
| |
| void arc_read_default_aux_registers (struct gdbarch *gdbarch); |
| |
| |
| /* PC-related functions. */ |
| |
| void arc_aux_pc_guard (struct gdbarch *gdbarch, Boolean on); |
| |
| void arc_aux_check_pc_defined (struct gdbarch *gdbarch); |
| |
| int arc_aux_pc_number (struct gdbarch *gdbarch); |
| |
| |
| /* Output functions. */ |
| |
| void arc_print_aux_register (ARC_AuxRegisterDefinition *def, |
| ARC_RegisterContents contents); |
| |
| |
| /* Search functions. */ |
| |
| ARC_AuxRegisterDefinition* arc_find_aux_register_by_name (const char *name); |
| |
| ARC_AuxRegisterDefinition* arc_find_aux_register_by_gdb_number (int gdb_regno); |
| |
| ARC_AuxRegisterDefinition* arc_find_aux_register_by_hw_number (ARC_RegisterNumber hw_regno); |
| |
| ARC_RegisterNumber arc_aux_find_register_number (const char *name, |
| ARC_RegisterNumber defaultNumber); |
| |
| ARC_RegisterNumber arc_core_register_number (int gdb_regno); |
| |
| int arc_core_register_gdb_number (ARC_RegisterNumber hw_regno); |
| |
| const char* arc_aux_register_name_of (ARC_RegisterNumber hw_regno); |
| |
| Boolean arc_is_core_register (int gdb_regno); |
| |
| |
| /* Accessor functions. */ |
| |
| int arc_aux_gdb_register_number (ARC_AuxRegisterDefinition *def); |
| |
| ARC_RegisterNumber arc_aux_hw_register_number (ARC_AuxRegisterDefinition *def); |
| |
| RegisterAccess arc_aux_register_access (ARC_AuxRegisterDefinition *def); |
| |
| Boolean arc_aux_is_unused (ARC_AuxRegisterDefinition *def); |
| |
| Boolean arc_aux_is_BCR (ARC_AuxRegisterDefinition *def); |
| |
| const char* arc_aux_register_name (ARC_AuxRegisterDefinition *def); |
| |
| RegisterAccess arc_core_register_access (ARC_RegisterNumber regno); |
| |
| |
| /* Iterator/summary functions. */ |
| |
| void arc_all_aux_registers (ARC_AuxRegisterFunction function, void *data); |
| |
| unsigned int arc_aux_register_max_name_length (void); |
| |
| unsigned int arc_aux_register_count (struct gdbarch *gdbarch); |
| |
| unsigned int arc_core_register_count (struct gdbarch *gdbarch); |
| |
| Boolean arc_aux_regs_defined (struct gdbarch *gdbarch); |
| |
| ARC_ProcessorVersion arc_aux_architecture (struct gdbarch *gdbarch); |
| |
| /* Register contents conversion functions. */ |
| |
| ARC_RegisterContents arc_write_value (ARC_AuxRegisterDefinition *def, ARC_RegisterContents value); |
| |
| void arc_convert_aux_contents_for_write (int gdb_regno, void *buffer); |
| |
| |
| #endif /* ARC_REGISTERS_H */ |
| /******************************************************************************/ |
