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Diffstat (limited to 'gdb/arc-registers.h')
| -rw-r--r-- | gdb/arc-registers.h | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/gdb/arc-registers.h b/gdb/arc-registers.h new file mode 100644 index 00000000000..9fb6521351a --- /dev/null +++ b/gdb/arc-registers.h @@ -0,0 +1,226 @@ +/* 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 */ +/******************************************************************************/ |