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/* SPDX-License-Identifier: GPL-2.0-or-later */
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
***************************************************************************/
#ifndef OPENOCD_TARGET_REGISTER_H
#define OPENOCD_TARGET_REGISTER_H
#include "helper/replacements.h"
#include "helper/types.h"
struct target;
enum reg_type {
REG_TYPE_BOOL,
REG_TYPE_INT,
REG_TYPE_INT8,
REG_TYPE_INT16,
REG_TYPE_INT32,
REG_TYPE_INT64,
REG_TYPE_INT128,
REG_TYPE_UINT,
REG_TYPE_UINT8,
REG_TYPE_UINT16,
REG_TYPE_UINT32,
REG_TYPE_UINT64,
REG_TYPE_UINT128,
REG_TYPE_CODE_PTR,
REG_TYPE_DATA_PTR,
REG_TYPE_FLOAT,
REG_TYPE_IEEE_SINGLE,
REG_TYPE_IEEE_DOUBLE,
REG_TYPE_ARCH_DEFINED,
};
struct reg_feature {
const char *name;
};
struct reg_data_type_vector {
struct reg_data_type *type;
uint32_t count;
};
struct reg_data_type_union_field {
const char *name;
struct reg_data_type *type;
struct reg_data_type_union_field *next;
};
struct reg_data_type_union {
struct reg_data_type_union_field *fields;
};
struct reg_data_type_bitfield {
uint32_t start;
uint32_t end;
enum reg_type type;
};
struct reg_data_type_struct_field {
const char *name;
bool use_bitfields;
union {
struct reg_data_type_bitfield *bitfield;
struct reg_data_type *type;
};
struct reg_data_type_struct_field *next;
};
struct reg_data_type_struct {
uint32_t size;
struct reg_data_type_struct_field *fields;
};
struct reg_data_type_flags_field {
const char *name;
struct reg_data_type_bitfield *bitfield;
struct reg_data_type_flags_field *next;
};
struct reg_data_type_flags {
uint32_t size;
struct reg_data_type_flags_field *fields;
};
enum reg_data_type_class {
REG_TYPE_CLASS_VECTOR,
REG_TYPE_CLASS_UNION,
REG_TYPE_CLASS_STRUCT,
REG_TYPE_CLASS_FLAGS,
};
struct reg_data_type {
enum reg_type type;
const char *id;
enum reg_data_type_class type_class;
union {
struct reg_data_type_vector *reg_type_vector;
struct reg_data_type_union *reg_type_union;
struct reg_data_type_struct *reg_type_struct;
struct reg_data_type_flags *reg_type_flags;
};
};
struct reg {
/* Canonical name of the register. */
const char *name;
/* Number that gdb uses to access this register. */
uint32_t number;
/* TODO. This should probably be const. */
struct reg_feature *feature;
/* TODO: When true, the caller will save this register before running any algorithm. */
bool caller_save;
/* Pointer to place where the value is stored, in the format understood by
* the binarybuffer.h functions. */
uint8_t *value;
/* The stored value needs to be written to the target. */
bool dirty;
/* When true, value is valid. */
bool valid;
/* When false, the register doesn't actually exist in the target. */
bool exist;
/* Hide the register from gdb and omit it in 'reg' cmd output */
bool hidden;
/* Size of the register in bits. */
uint32_t size;
/* Used for generating XML description of registers. Can be set to NULL for
* targets that don't use that. */
struct reg_data_type *reg_data_type;
/* Used for generating XML description of registers. Can be set to NULL for
* targets that don't use that. */
const char *group;
/* Pointer to architecture-specific info for this register. */
void *arch_info;
const struct reg_arch_type *type;
};
struct reg_cache {
const char *name;
struct reg_cache *next;
struct reg *reg_list;
unsigned num_regs;
};
struct reg_arch_type {
int (*get)(struct reg *reg);
int (*set)(struct reg *reg, uint8_t *buf);
};
struct reg *register_get_by_number(struct reg_cache *first,
uint32_t reg_num, bool search_all);
struct reg *register_get_by_name(struct reg_cache *first,
const char *name, bool search_all);
struct reg_cache **register_get_last_cache_p(struct reg_cache **first);
void register_unlink_cache(struct reg_cache **cache_p, const struct reg_cache *cache);
void register_cache_invalidate(struct reg_cache *cache);
void register_init_dummy(struct reg *reg);
#endif /* OPENOCD_TARGET_REGISTER_H */
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