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/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2006 by Magnus Lundin *
* lundin@mlu.mine.nu *
* *
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
* *
* 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 2 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef ARMV7M_COMMON_H
#define ARMV7M_COMMON_H
#include "arm_adi_v5.h"
#include "arm.h"
/* define for enabling armv7 gdb workarounds */
#if 1
#define ARMV7_GDB_HACKS
#endif
#ifdef ARMV7_GDB_HACKS
extern uint8_t armv7m_gdb_dummy_cpsr_value[];
extern struct reg armv7m_gdb_dummy_cpsr_reg;
#endif
enum armv7m_mode {
ARMV7M_MODE_THREAD = 0,
ARMV7M_MODE_USER_THREAD = 1,
ARMV7M_MODE_HANDLER = 2,
ARMV7M_MODE_ANY = -1
};
extern char *armv7m_mode_strings[];
extern const int armv7m_psp_reg_map[];
extern const int armv7m_msp_reg_map[];
enum armv7m_regtype {
ARMV7M_REGISTER_CORE_GP,
ARMV7M_REGISTER_CORE_SP,
ARMV7M_REGISTER_MEMMAP
};
char *armv7m_exception_string(int number);
/* offsets into armv7m core register cache */
enum {
/* for convenience, the first set of indices match
* the Cortex-M3 DCRSR selectors
*/
ARMV7M_R0,
ARMV7M_R1,
ARMV7M_R2,
ARMV7M_R3,
ARMV7M_R4,
ARMV7M_R5,
ARMV7M_R6,
ARMV7M_R7,
ARMV7M_R8,
ARMV7M_R9,
ARMV7M_R10,
ARMV7M_R11,
ARMV7M_R12,
ARMV7M_R13,
ARMV7M_R14,
ARMV7M_PC = 15,
ARMV7M_xPSR = 16,
ARMV7M_MSP,
ARMV7M_PSP,
/* this next set of indices is arbitrary */
ARMV7M_PRIMASK,
ARMV7M_BASEPRI,
ARMV7M_FAULTMASK,
ARMV7M_CONTROL,
};
#define ARMV7M_COMMON_MAGIC 0x2A452A45
struct armv7m_common {
struct arm arm;
int common_magic;
struct reg_cache *core_cache;
enum armv7m_mode core_mode;
int exception_number;
struct adiv5_dap dap;
uint32_t demcr;
/* Direct processor core register read and writes */
int (*load_core_reg_u32)(struct target *target,
enum armv7m_regtype type, uint32_t num, uint32_t *value);
int (*store_core_reg_u32)(struct target *target,
enum armv7m_regtype type, uint32_t num, uint32_t value);
/* register cache to processor synchronization */
int (*read_core_reg)(struct target *target, unsigned num);
int (*write_core_reg)(struct target *target, unsigned num);
int (*examine_debug_reason)(struct target *target);
int (*post_debug_entry)(struct target *target);
void (*pre_restore_context)(struct target *target);
};
static inline struct armv7m_common *
target_to_armv7m(struct target *target)
{
return container_of(target->arch_info, struct armv7m_common, arm);
}
static inline bool is_armv7m(struct armv7m_common *armv7m)
{
return armv7m->common_magic == ARMV7M_COMMON_MAGIC;
}
struct armv7m_algorithm {
int common_magic;
enum armv7m_mode core_mode;
uint32_t context[ARMV7M_CONTROL + 1]; /* ARMV7M_NUM_REGS */
};
struct armv7m_core_reg {
uint32_t num;
enum armv7m_regtype type;
struct target *target;
struct armv7m_common *armv7m_common;
};
struct reg_cache *armv7m_build_reg_cache(struct target *target);
enum armv7m_mode armv7m_number_to_mode(int number);
int armv7m_mode_to_number(enum armv7m_mode mode);
int armv7m_arch_state(struct target *target);
int armv7m_get_gdb_reg_list(struct target *target,
struct reg **reg_list[], int *reg_list_size);
int armv7m_init_arch_info(struct target *target, struct armv7m_common *armv7m);
int armv7m_run_algorithm(struct target *target,
int num_mem_params, struct mem_param *mem_params,
int num_reg_params, struct reg_param *reg_params,
uint32_t entry_point, uint32_t exit_point,
int timeout_ms, void *arch_info);
int armv7m_start_algorithm(struct target *target,
int num_mem_params, struct mem_param *mem_params,
int num_reg_params, struct reg_param *reg_params,
uint32_t entry_point, uint32_t exit_point,
void *arch_info);
int armv7m_wait_algorithm(struct target *target,
int num_mem_params, struct mem_param *mem_params,
int num_reg_params, struct reg_param *reg_params,
uint32_t exit_point, int timeout_ms,
void *arch_info);
int armv7m_invalidate_core_regs(struct target *target);
int armv7m_restore_context(struct target *target);
int armv7m_checksum_memory(struct target *target,
uint32_t address, uint32_t count, uint32_t *checksum);
int armv7m_blank_check_memory(struct target *target,
uint32_t address, uint32_t count, uint32_t *blank);
int armv7m_maybe_skip_bkpt_inst(struct target *target, bool *inst_found);
extern const struct command_registration armv7m_command_handlers[];
#endif /* ARMV7M_H */
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