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SourceVuDevelopment ToolsOpenOCDarm

arm struct

Represents a generic ARM core, with standard application registers. There are sixteen application registers (including PC, SP, LR) and a PSR. Cortex-M series cores do not support as many core states or shadowed registers as traditional ARM cores, and only support Thumb2 instructions.

Syntax

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Summary

Declaration

struct arm { unsigned int common_magic; struct reg_cache *core_cache; struct reg *pc; struct reg *cpsr; struct reg *spsr; const int *map; enum arm_core_type core_type; enum arm_mode core_mode; enum arm_state core_state; enum arm_arch arch; int arm_vfp_version; int (*setup_semihosting)(struct target *target, int enable); struct target *target; struct arm_dpm *dpm; struct etm_context *etm; int (*full_context)(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, uint8_t *value); int (*mrc)(struct target *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t crn, uint32_t crm, uint32_t *value); int (*mrrc)(struct target *target, int cpnum, uint32_t op, uint32_t crm, uint64_t *value); int (*mcr)(struct target *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t crn, uint32_t crm, uint32_t value); int (*mcrr)(struct target *target, int cpnum, uint32_t op, uint32_t crm, uint64_t value); void *arch_info; struct adiv5_dap *dap; };

Fields

Field

Declared as

Description

arm::common_magic

unsigned int

arm::core_cache

struct reg_cache *

struct reg *

Handle to the PC; valid in all core modes.

struct reg *

Handle to the CPSR/xPSR; valid in all core modes.

struct reg *

Handle to the SPSR; valid only in core modes with an SPSR.

const int *

Support for arm_reg_current().

enum arm_core_type

Indicates what registers are in the ARM state core register set.

Record the current core mode: SVC, USR, or some other mode.

arm::core_state

Record the current core state: ARM, Thumb, or otherwise.

ARM architecture version.

arm::arm_vfp_version

int

Floating point or VFP version, 0 if disabled.

arm::setup_semihosting

int (*)(struct target *target, int enable)

struct target *

Backpointer to the target.

struct arm_dpm *

Handle for the debug module, if one is present.

struct etm_context *

Handle for the Embedded Trace Module, if one is present.

arm::full_context

int (*)(struct target *target)

Retrieve all core registers, for display.

arm::read_core_reg

int (*)(struct target *target, struct reg *reg, int num, enum arm_mode mode)

Retrieve a single core register.

arm::write_core_reg

int (*)(struct target *target, struct reg *reg, int num, enum arm_mode mode, uint8_t *value)

int (*)(struct target *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t crn, uint32_t crm, uint32_t *value)

Read coprocessor register.

int (*)(struct target *target, int cpnum, uint32_t op, uint32_t crm, uint64_t *value)

Read coprocessor to two registers.

int (*)(struct target *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t crn, uint32_t crm, uint32_t value)

Write coprocessor register.

int (*)(struct target *target, int cpnum, uint32_t op, uint32_t crm, uint64_t value)

Write coprocessor from two registers.

void *

struct adiv5_dap *

For targets conforming to ARM Debug Interface v5, this handle references the Debug Access Port (DAP) used to make requests to the target.

Examples

References

from examples