* Copyright (C) 2009 by Øyvind Harboe
* oyvind.harboe@zylin.com
*
+ * Copyright (C) 2018 by Liviu Ionescu
+ * <ilg@livius.net>
+ *
* 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
* 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.
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#ifndef ARM_H
-#define ARM_H
-#include <target/target.h>
-#include <helper/command.h>
+#ifndef OPENOCD_TARGET_ARM_H
+#define OPENOCD_TARGET_ARM_H
+#include <helper/command.h>
+#include "target.h"
/**
* @file
*/
/**
- * These numbers match the five low bits of the *PSR registers on
+ * Indicates what registers are in the ARM state core register set.
+ *
+ * - ARM_CORE_TYPE_STD indicates the standard set of 37 registers, seen
+ * on for example ARM7TDMI cores.
+ * - ARM_CORE_TYPE_SEC_EXT indicates core has security extensions, thus
+ * three more registers are shadowed for "Secure Monitor" mode.
+ * - ARM_CORE_TYPE_VIRT_EXT indicates core has virtualization extensions
+ * and also security extensions. Additional shadowed registers for
+ * "Secure Monitor" and "Hypervisor" modes.
+ * - ARM_CORE_TYPE_M_PROFILE indicates a microcontroller profile core,
+ * which only shadows SP.
+ */
+enum arm_core_type {
+ ARM_CORE_TYPE_STD = -1,
+ ARM_CORE_TYPE_SEC_EXT = 1,
+ ARM_CORE_TYPE_VIRT_EXT,
+ ARM_CORE_TYPE_M_PROFILE,
+};
+
+/**
+ * Represent state of an ARM core.
+ *
+ * Most numbers match the five low bits of the *PSR registers on
* "classic ARM" processors, which build on the ARMv4 processor
* modes and register set.
+ *
+ * ARM_MODE_ANY is a magic value, often used as a wildcard.
+ *
+ * Only the microcontroller cores (ARMv6-M, ARMv7-M) support ARM_MODE_THREAD,
+ * ARM_MODE_USER_THREAD, and ARM_MODE_HANDLER. Those are the only modes
+ * they support.
*/
enum arm_mode {
ARM_MODE_USR = 16,
ARM_MODE_FIQ = 17,
ARM_MODE_IRQ = 18,
ARM_MODE_SVC = 19,
+ ARM_MODE_MON = 22,
ARM_MODE_ABT = 23,
- ARM_MODE_MON = 26,
+ ARM_MODE_HYP = 26,
ARM_MODE_UND = 27,
+ ARM_MODE_1176_MON = 28,
ARM_MODE_SYS = 31,
+
+ ARM_MODE_THREAD = 0,
+ ARM_MODE_USER_THREAD = 1,
+ ARM_MODE_HANDLER = 2,
+
+ ARMV8_64_EL0T = 0x0,
+ ARMV8_64_EL1T = 0x4,
+ ARMV8_64_EL1H = 0x5,
+ ARMV8_64_EL2T = 0x8,
+ ARMV8_64_EL2H = 0x9,
+ ARMV8_64_EL3T = 0xC,
+ ARMV8_64_EL3H = 0xD,
+
ARM_MODE_ANY = -1
};
+/* VFPv3 internal register numbers mapping to d0:31 */
+enum {
+ ARM_VFP_V3_D0 = 51,
+ ARM_VFP_V3_D1,
+ ARM_VFP_V3_D2,
+ ARM_VFP_V3_D3,
+ ARM_VFP_V3_D4,
+ ARM_VFP_V3_D5,
+ ARM_VFP_V3_D6,
+ ARM_VFP_V3_D7,
+ ARM_VFP_V3_D8,
+ ARM_VFP_V3_D9,
+ ARM_VFP_V3_D10,
+ ARM_VFP_V3_D11,
+ ARM_VFP_V3_D12,
+ ARM_VFP_V3_D13,
+ ARM_VFP_V3_D14,
+ ARM_VFP_V3_D15,
+ ARM_VFP_V3_D16,
+ ARM_VFP_V3_D17,
+ ARM_VFP_V3_D18,
+ ARM_VFP_V3_D19,
+ ARM_VFP_V3_D20,
+ ARM_VFP_V3_D21,
+ ARM_VFP_V3_D22,
+ ARM_VFP_V3_D23,
+ ARM_VFP_V3_D24,
+ ARM_VFP_V3_D25,
+ ARM_VFP_V3_D26,
+ ARM_VFP_V3_D27,
+ ARM_VFP_V3_D28,
+ ARM_VFP_V3_D29,
+ ARM_VFP_V3_D30,
+ ARM_VFP_V3_D31,
+ ARM_VFP_V3_FPSCR,
+};
+
const char *arm_mode_name(unsigned psr_mode);
bool is_arm_mode(unsigned psr_mode);
ARM_STATE_THUMB,
ARM_STATE_JAZELLE,
ARM_STATE_THUMB_EE,
+ ARM_STATE_AARCH64,
};
-extern const char *arm_state_strings[];
+/** ARM vector floating point enabled, if yes which version. */
+enum arm_vfp_version {
+ ARM_VFP_DISABLED,
+ ARM_VFP_V1,
+ ARM_VFP_V2,
+ ARM_VFP_V3,
+};
#define ARM_COMMON_MAGIC 0x0A450A45
int common_magic;
struct reg_cache *core_cache;
- /** Handle to the CPSR; valid in all core modes. */
+ /** Handle to the PC; valid in all core modes. */
+ struct reg *pc;
+
+ /** Handle to the CPSR/xPSR; valid in all core modes. */
struct reg *cpsr;
/** Handle to the SPSR; valid only in core modes with an SPSR. */
/** Support for arm_reg_current() */
const int *map;
- /**
- * Indicates what registers are in the ARM state core register set.
- * ARM_MODE_ANY indicates the standard set of 37 registers,
- * seen on for example ARM7TDMI cores. ARM_MODE_MON indicates three
- * more registers are shadowed, for "Secure Monitor" mode.
- */
- enum arm_mode core_type;
+ /** Indicates what registers are in the ARM state core register set. */
+ enum arm_core_type core_type;
/** Record the current core mode: SVC, USR, or some other mode. */
enum arm_mode core_mode;
/** Flag reporting unavailability of the BKPT instruction. */
bool is_armv4;
- /** Flag reporting whether semihosting is active. */
- bool is_semihosting;
+ /** Flag reporting armv6m based core. */
+ bool is_armv6m;
- /** Value to be returned by semihosting SYS_ERRNO request. */
- int semihosting_errno;
+ /** Floating point or VFP version, 0 if disabled. */
+ int arm_vfp_version;
+
+ int (*setup_semihosting)(struct target *target, int enable);
/** Backpointer to the target. */
struct target *target;
int (*read_core_reg)(struct target *target, struct reg *reg,
int num, enum arm_mode mode);
int (*write_core_reg)(struct target *target, struct reg *reg,
- int num, enum arm_mode mode, uint32_t value);
+ int num, enum arm_mode mode, uint8_t *value);
/** Read coprocessor register. */
int (*mrc)(struct target *target, int cpnum,
uint32_t value);
void *arch_info;
+
+ /** For targets conforming to ARM Debug Interface v5,
+ * this handle references the Debug Access Port (DAP)
+ * used to make requests to the target.
+ */
+ struct adiv5_dap *dap;
};
/** Convert target handle to generic ARM target state handle. */
static inline struct arm *target_to_arm(struct target *target)
{
+ assert(target != NULL);
return target->arch_info;
}
static inline bool is_arm(struct arm *arm)
{
- return arm && arm->common_magic == ARM_COMMON_MAGIC;
+ assert(arm != NULL);
+ return arm->common_magic == ARM_COMMON_MAGIC;
}
struct arm_algorithm {
int num;
enum arm_mode mode;
struct target *target;
- struct arm *armv4_5_common;
- uint32_t value;
+ struct arm *arm;
+ uint8_t value[16];
};
struct reg_cache *arm_build_reg_cache(struct target *target, struct arm *arm);
+void arm_free_reg_cache(struct arm *arm);
+
+struct reg_cache *armv8_build_reg_cache(struct target *target);
extern const struct command_registration arm_command_handlers[];
int arm_arch_state(struct target *target);
+const char *arm_get_gdb_arch(struct target *target);
int arm_get_gdb_reg_list(struct target *target,
- struct reg **reg_list[], int *reg_list_size);
+ struct reg **reg_list[], int *reg_list_size,
+ enum target_register_class reg_class);
+const char *armv8_get_gdb_arch(struct target *target);
+int armv8_get_gdb_reg_list(struct target *target,
+ struct reg **reg_list[], int *reg_list_size,
+ enum target_register_class reg_class);
int arm_init_arch_info(struct target *target, struct arm *arm);
int armv4_5_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,
+ target_addr_t entry_point, target_addr_t exit_point,
int timeout_ms, void *arch_info);
int armv4_5_run_algorithm_inner(struct target *target,
int num_mem_params, struct mem_param *mem_params,
int timeout_ms, void *arch_info));
int arm_checksum_memory(struct target *target,
- uint32_t address, uint32_t count, uint32_t *checksum);
+ target_addr_t address, uint32_t count, uint32_t *checksum);
int arm_blank_check_memory(struct target *target,
- uint32_t address, uint32_t count, uint32_t *blank);
+ struct target_memory_check_block *blocks, int num_blocks, uint8_t erased_value);
void arm_set_cpsr(struct arm *arm, uint32_t cpsr);
struct reg *arm_reg_current(struct arm *arm, unsigned regnum);
-
-void arm_endianness(uint8_t *tmp, void *in, int size, int be, int flip);
+struct reg *armv8_reg_current(struct arm *arm, unsigned regnum);
extern struct reg arm_gdb_dummy_fp_reg;
extern struct reg arm_gdb_dummy_fps_reg;
-#endif /* ARM_H */
+#endif /* OPENOCD_TARGET_ARM_H */
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