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Diffstat (limited to 'gdb/arc-support.h')
| -rw-r--r-- | gdb/arc-support.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/gdb/arc-support.h b/gdb/arc-support.h new file mode 100644 index 00000000000..76ff0bfea36 --- /dev/null +++ b/gdb/arc-support.h @@ -0,0 +1,136 @@ +/* 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 some useful types and constants, and macros */ +/* for use in debugging. */ +/* */ +/******************************************************************************/ + +#ifndef ARC_SUPPORT_H +#define ARC_SUPPORT_H + + +#define ARC_DEBUG 1 + +#ifdef ARC_DEBUG +#define DEBUG(...) if (arc_debug_target) fprintf_unfiltered(gdb_stdlog, __VA_ARGS__) +#define ENTERMSG DEBUG("--- entered %s:%s()\n", __FILE__, __FUNCTION__) +#define ENTERARGS(fmt, args...) DEBUG("--- entered %s:%s(" fmt ")\n", __FILE__, __FUNCTION__, args) +#define LEAVEMSG DEBUG("--- exited %s:%s()\n", __FILE__, __FUNCTION__) +#else +#define DEBUG(...) +#define ENTERMSG +#define ENTERARGS(fmt, args...) +#define LEAVEMSG +#endif + + +/* N.B. it must be possible to build some ARC modules without the rest of gdb so + that they can be exercised by stand-alone test drivers. */ +#ifdef STANDALONE_TEST +#define error(...) { printf(__VA_ARGS__); printf("\n"); } +#define warning(...) { printf(__VA_ARGS__); printf("\n"); } +#define printf_filtered(...) printf(__VA_ARGS__) +#define printf_unfiltered(...) printf(__VA_ARGS__) +#define fprintf_unfiltered(STR, ...) printf(__VA_ARGS__) +#define internal_error(...) abort() +#endif + + +/* Useful Boolean type and constants. */ +typedef int Boolean; + +#ifndef FALSE +#define FALSE 0 +#endif +#ifndef TRUE +#define TRUE 1 +#endif + + +/* Useful types for machine-related quantities. + + N.B. the type ARC_RegisterNumber does not denote gdb register numbers; + instead, it denotes ARC processor hardware numbers, which are not + the same. */ + +typedef unsigned int ARC_RegisterNumber; +typedef unsigned int ARC_RegisterContents; +typedef unsigned int ARC_Address; +typedef unsigned long long int ARC_Doubleword; +typedef unsigned int ARC_Word; +typedef unsigned short int ARC_Halfword; +typedef unsigned char ARC_Byte; + + +/* Types for machine-access functions. */ +typedef Boolean (*ReadRegisterFunction)(ARC_RegisterNumber hw_regno, + ARC_RegisterContents *contents, + Boolean warn_on_failure); + +typedef Boolean (*WriteRegisterFunction)(ARC_RegisterNumber hw_regno, + ARC_RegisterContents contents, + Boolean warn_on_failure); + + +typedef unsigned int (*MemoryTransferFunction)(ARC_Address address, + ARC_Byte *data, /* May be not word-aligned. */ + unsigned int amount); + +typedef unsigned int (*MemoryFillFunction) (ARC_Address address, + ARC_Word pattern, + unsigned int amount); + +typedef struct +{ + ReadRegisterFunction read_core_register; + WriteRegisterFunction write_core_register; + ReadRegisterFunction read_auxiliary_register; + WriteRegisterFunction write_auxiliary_register; + MemoryTransferFunction read_memory; + MemoryTransferFunction write_memory; + MemoryFillFunction fill_memory; +} TargetOperations; + + +/* Sizes of machine quantities. */ +#define BYTES_IN_WORD 4 +#define BYTES_IN_REGISTER 4 +#define BITS_IN_BYTE 8 +#define BITS_IN_WORD 32 +#define BITS_IN_ADDRESS 32 +#define BITS_IN_REGISTER 32 + + +/* Useful macros. */ +#define ELEMENTS_IN_ARRAY(arr) (unsigned int) (sizeof(arr) / sizeof(arr[0])) + +#define IS_WORD_ALIGNED(addr) ((addr) % BYTES_IN_WORD == 0) + + +#endif /* ARC_SUPPORT_H */ +/******************************************************************************/ |