arm11.c File Reference

Include dependency graph for arm11.c:

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Macros
#define	ARM11_BOOL_WRAPPER(name, print_name)

Functions
static int	arm11_add_breakpoint (struct target *target, struct breakpoint *breakpoint)
static int	arm11_arch_state (struct target *target)
static int	arm11_assert_reset (struct target *target)
static int	arm11_check_init (struct arm11_common *arm11)
	Check and if necessary take control of the system. More...
static int	arm11_deassert_reset (struct target *target)
static int	arm11_debug_entry (struct arm11_common *arm11)
	Save processor state. More...
static void	arm11_deinit_target (struct target *target)
static int	arm11_examine (struct target *target)
static int	arm11_halt (struct target *target)
static int	arm11_init_target (struct command_context *cmd_ctx, struct target *target)
static int	arm11_leave_debug_state (struct arm11_common *arm11, bool bpwp)
	Restore processor state. More...
static uint32_t	arm11_nextpc (struct arm11_common *arm11, int current, uint32_t address)
static int	arm11_poll (struct target *target)
static int	arm11_read_memory (struct target *target, target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
static int	arm11_read_memory_inner (struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer, bool arm11_config_memrw_no_increment)
static int	arm11_remove_breakpoint (struct target *target, struct breakpoint *breakpoint)
static int	arm11_resume (struct target *target, int current, target_addr_t address, int handle_breakpoints, int debug_execution)
static int	arm11_step (struct target *target, int current, target_addr_t address, int handle_breakpoints)
static int	arm11_target_create (struct target *target, Jim_Interp *interp)
static int	arm11_write_memory (struct target *target, target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
static int	arm11_write_memory_inner (struct target *target, uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer, bool no_increment)
	COMMAND_HANDLER (arm11_handle_vcr)

Variables
static const struct command_registration	arm11_any_command_handlers []
static const struct command_registration	arm11_command_handlers []
static const struct command_registration	arm11_mw_command_handlers []
struct target_type	arm11_target
	Holds methods for ARM11xx targets. More...

Macro Definition Documentation

ARM11_BOOL_WRAPPER

#define ARM11_BOOL_WRAPPER	(		name,
			print_name
	)

Value:

    COMMAND_HANDLER(arm11_handle_bool_ ## name) \
    { \
        struct target *target = get_current_target(CMD_CTX); \
        struct arm11_common *arm11 = target_to_arm11(target); \
        \
        return CALL_COMMAND_HANDLER(handle_command_parse_bool, \
            &arm11->name, print_name); \
    }

Definition at line 1235 of file arm11.c.

Function Documentation

arm11_add_breakpoint()

static int arm11_add_breakpoint ( struct target *  target, struct breakpoint *  breakpoint  )

static

Definition at line 1047 of file arm11.c.

References BKPT_SOFT, ERROR_OK, ERROR_TARGET_RESOURCE_NOT_AVAILABLE, arm11_common::free_brps, breakpoint::length, LOG_DEBUG, LOG_INFO, target_to_arm11(), and breakpoint::type.

arm11_arch_state()

static int arm11_arch_state ( struct target *  target )

static

Definition at line 337 of file arm11.c.

References arm_arch_state(), DBG_REASON_WATCHPOINT, target::debug_reason, arm11_common::dpm, LOG_USER, TARGET_ADDR_FMT, target_to_arm11(), and arm_dpm::wp_addr.

arm11_assert_reset()

static int arm11_assert_reset ( struct target *  target )

static

Definition at line 701 of file arm11.c.

References arm11_common::arm, arm11_sc7_set_vcr(), CHECK_RETVAL, arm::core_cache, ERROR_FAIL, ERROR_OK, ERROR_TARGET_NOT_EXAMINED, jtag_add_reset(), jtag_get_reset_config(), LOG_ERROR, LOG_WARNING, register_cache_invalidate(), target::reset_halt, RESET_HAS_SRST, target::state, TARGET_EVENT_RESET_ASSERT, target_handle_event(), target_has_event_action(), target_name(), TARGET_RESET, target_to_arm11(), target_was_examined(), and arm11_common::vcr.

arm11_check_init()

static int arm11_check_init ( struct arm11_common *  arm11 )

static

Check and if necessary take control of the system.

Parameters

arm11

Target state variable.

Todo:

TODO: this needs further scrutiny because arm11_debug_entry() never gets called. (WHY NOT?) As a result we don't read the actual register states from the target.

Definition at line 41 of file arm11.c.

References arm11_common::arm, arm11_read_dscr(), arm11_sc7_clear_vbw(), arm11_write_dscr(), arm_dpm_report_dscr(), CHECK_RETVAL, DBG_REASON_NOTHALTED, target::debug_reason, arm::dpm, arm11_common::dscr, DSCR_CORE_HALTED, DSCR_HALT_DBG_MODE, ERROR_OK, LOG_DEBUG, arm11_common::simulate_reset_on_next_halt, target::state, arm::target, TARGET_HALTED, and TARGET_RUNNING.

Referenced by arm11_examine(), and arm11_poll().

arm11_deassert_reset()

static int arm11_deassert_reset ( struct target *  target )

static

Definition at line 750 of file arm11.c.

References arm11_poll(), arm11_sc7_set_vcr(), CHECK_RETVAL, ERROR_OK, jtag_add_reset(), jtag_add_tlr(), LOG_WARNING, target::reset_halt, target::state, target_halt(), TARGET_HALTED, target_name(), target_to_arm11(), and arm11_common::vcr.

arm11_debug_entry()

static int arm11_debug_entry ( struct arm11_common *  arm11 )

static

Save processor state.

This is called after a HALT instruction succeeds, and on other occasions the processor enters debug mode (breakpoint, watchpoint, etc). Caller has updated arm11->dscr.

Todo:

TODO: Test drain write buffer.

Definition at line 81 of file arm11.c.

References arm11_common::arm, arm11_add_debug_scan_n(), arm11_add_dr_scan_vc(), arm11_add_ir(), ARM11_INTEST, arm11_read_dscr(), arm11_run_instr_data_finish(), arm11_run_instr_data_from_core_via_r0(), arm11_run_instr_data_prepare(), arm11_run_instr_data_to_core_via_r0(), arm11_run_instr_no_data1(), arm11_setup_field(), ARM11_TAP_DEFAULT, arm11_write_dscr(), arm_dpm_read_current_registers(), arm_dpm_report_dscr(), arm_dpm_report_wfar(), ARMV4_5_MRC, ARRAY_SIZE, CHECK_RETVAL, arm::core_cache, DBG_REASON_WATCHPOINT, target::debug_reason, arm::dpm, arm11_common::dpm, arm11_common::dscr, DSCR_DTR_RX_FULL, DSCR_DTR_TX_FULL, DSCR_ITR_EN, ERROR_OK, arm11_common::is_rdtr_saved, arm11_common::is_wdtr_saved, LOG_DEBUG, LOG_ERROR, NULL, register_cache_invalidate(), arm11_common::saved_rdtr, arm11_common::saved_wdtr, arm11_common::simulate_reset_on_next_halt, target::state, target::tap, TAP_DRPAUSE, arm::target, and TARGET_HALTED.

Referenced by arm11_halt(), arm11_poll(), and arm11_step().

arm11_deinit_target()

static void arm11_deinit_target ( struct target *  target )

static

Definition at line 1122 of file arm11.c.

References arm11_dpm_deinit(), and target_to_arm11().

arm11_examine()

static int arm11_examine ( struct target *  target )

static

Todo:

TODO: reserve one brp slot if we allow breakpoints during step

Definition at line 1131 of file arm11.c.

References arm11_common::arm, arm11_add_debug_scan_n(), arm11_add_dr_scan_vc(), arm11_add_ir(), arm11_check_init(), ARM11_DEBUG_V6, ARM11_DEBUG_V61, arm11_dpm_init(), ARM11_IDCODE, ARM11_INTEST, arm11_setup_field(), ARM11_TAP_DEFAULT, ARM_CORE_TYPE_SEC_EXT, ARRAY_SIZE, arm11_common::brp, CHECK_RETVAL, arm::core_type, ERROR_FAIL, ERROR_OK, arm::etm, etm_build_reg_cache(), etm_setup(), arm11_common::free_brps, jtag_execute_queue(), arm11_common::jtag_info, LOG_DEBUG, LOG_ERROR, LOG_INFO, NULL, target::reg_cache, register_get_last_cache_p(), target::tap, TAP_DRPAUSE, TAP_IDLE, arm::target, target_set_examined(), target_to_arm11(), target_was_examined(), and type.

arm11_halt()

static int arm11_halt ( struct target *  target )

static

Definition at line 353 of file arm11.c.

References arm11_add_ir(), arm11_debug_entry(), ARM11_HALT, arm11_read_dscr(), CHECK_RETVAL, arm11_common::dscr, DSCR_CORE_HALTED, ERROR_FAIL, ERROR_OK, jtag_execute_queue(), LOG_DEBUG, LOG_WARNING, arm11_common::simulate_reset_on_next_halt, target::state, TAP_IDLE, target_call_event_callbacks(), TARGET_DEBUG_RUNNING, TARGET_EVENT_DEBUG_HALTED, TARGET_EVENT_HALTED, TARGET_HALTED, target_state_name(), target_to_arm11(), TARGET_UNKNOWN, and timeval_ms().

arm11_init_target()

static int arm11_init_target ( struct command_context *  cmd_ctx, struct target *  target  )

static

Definition at line 1115 of file arm11.c.

References ERROR_OK.

arm11_leave_debug_state()

static int arm11_leave_debug_state ( struct arm11_common *  arm11, bool  bpwp  )

static

Restore processor state.

This is called in preparation for the RESTART function.

Definition at line 216 of file arm11.c.

References arm11_common::arm, arm11_add_debug_scan_n(), arm11_add_dr_scan_vc(), arm11_add_ir(), arm11_bpwp_flush(), ARM11_EXTEST, arm11_read_dscr(), arm11_run_instr_data_finish(), arm11_run_instr_data_prepare(), arm11_run_instr_data_to_core_via_r0(), arm11_setup_field(), ARM11_TAP_DEFAULT, arm11_write_dscr(), arm_dpm_write_dirty_registers(), ARRAY_SIZE, CHECK_RETVAL, arm::core_cache, arm11_common::dpm, arm11_common::dscr, DSCR_DTR_RX_FULL, DSCR_DTR_TX_FULL, ERROR_FAIL, ERROR_OK, arm11_common::is_rdtr_saved, arm11_common::is_wdtr_saved, LOG_ERROR, NULL, register_cache_invalidate(), arm11_common::saved_rdtr, arm11_common::saved_wdtr, target::tap, TAP_DRPAUSE, and arm::target.

Referenced by arm11_resume(), and arm11_step().

arm11_nextpc()

static uint32_t arm11_nextpc ( struct arm11_common *  arm11, int  current, uint32_t  address  )

static

Definition at line 405 of file arm11.c.

References arm11_common::arm, ARM_STATE_ARM, ARM_STATE_THUMB, buf_get_u32(), buf_set_u32(), arm::core_state, reg::dirty, arm::pc, reg::valid, and reg::value.

Referenced by arm11_resume(), and arm11_step().

arm11_poll()

static int arm11_poll ( struct target *  target )

static

Definition at line 305 of file arm11.c.

References arm11_check_init(), arm11_debug_entry(), CHECK_RETVAL, DBG_REASON_NOTHALTED, target::debug_reason, arm11_common::dscr, DSCR_CORE_HALTED, ERROR_OK, LOG_DEBUG, target::state, target_call_event_callbacks(), TARGET_DEBUG_RUNNING, TARGET_EVENT_DEBUG_HALTED, TARGET_EVENT_HALTED, TARGET_HALTED, TARGET_RUNNING, and target_to_arm11().

Referenced by arm11_deassert_reset().

arm11_read_memory()

static int arm11_read_memory ( struct target *  target, target_addr_t  address, uint32_t  size, uint32_t  count, uint8_t *  buffer  )

static

Definition at line 877 of file arm11.c.

References arm11_read_memory_inner(), buffer, count, and size.

arm11_read_memory_inner()

static int arm11_read_memory_inner ( struct target *  target, uint32_t  address, uint32_t  size, uint32_t  count, uint8_t *  buffer, bool  arm11_config_memrw_no_increment  )

static

Todo:

TODO: check if buffer cast to uint32_t* and uint16_t* might cause alignment problems

Todo:

TODO: buffer cast to uint32_t* causes alignment warnings

Definition at line 792 of file arm11.c.

References arm11_common::arm, arm11_run_instr_data_finish(), arm11_run_instr_data_from_core(), arm11_run_instr_data_prepare(), arm11_run_instr_data_to_core1(), arm11_run_instr_no_data1(), buffer, CHECK_RETVAL, arm::core_cache, count, reg::dirty, ERROR_OK, ERROR_TARGET_NOT_HALTED, LOG_DEBUG, LOG_TARGET_ERROR, reg_cache::reg_list, size, target::state, TARGET_HALTED, and target_to_arm11().

Referenced by arm11_read_memory().

arm11_remove_breakpoint()

static int arm11_remove_breakpoint ( struct target *  target, struct breakpoint *  breakpoint  )

static

Definition at line 1074 of file arm11.c.

References ERROR_OK, arm11_common::free_brps, and target_to_arm11().

arm11_resume()

static int arm11_resume ( struct target *  target, int  current, target_addr_t  address, int  handle_breakpoints, int  debug_execution  )

static

Definition at line 439 of file arm11.c.

References arm11_sc7_action::address, breakpoint::address, arm11_add_ir(), arm11_leave_debug_state(), arm11_nextpc(), arm11_read_dscr(), ARM11_RESTART, ARM11_SC7_BCR0, ARM11_SC7_BVR0, arm11_sc7_clear_vbw(), arm11_sc7_run(), arm11_sc7_set_vcr(), arm11_step(), ARRAY_SIZE, target::breakpoints, CHECK_RETVAL, DBG_REASON_NOTHALTED, target::debug_reason, arm11_common::dscr, DSCR_CORE_RESTARTED, ERROR_FAIL, ERROR_OK, ERROR_TARGET_NOT_HALTED, jtag_execute_queue(), LOG_DEBUG, LOG_TARGET_ERROR, LOG_WARNING, breakpoint::next, target::state, TAP_IDLE, target_call_event_callbacks(), TARGET_DEBUG_RUNNING, TARGET_EVENT_RESUMED, target_free_all_working_areas(), TARGET_HALTED, TARGET_PRIxADDR, TARGET_RUNNING, target_state_name(), target_to_arm11(), timeval_ms(), arm11_sc7_action::value, arm11_common::vcr, and arm11_sc7_action::write.

arm11_step()

static int arm11_step ( struct target *  target, int  current, target_addr_t  address, int  handle_breakpoints  )

static

Todo:

TODO: Thumb not supported here

Todo:

TODO: check if break-/watchpoints make any sense at all in combination with this.

Todo:

TODO: check if disabling IRQs might be a good idea here. Alternatively the VCR might be something worth looking into.

Definition at line 547 of file arm11.c.

References arm11_sc7_action::address, arm11_add_ir(), arm11_debug_entry(), arm11_leave_debug_state(), arm11_nextpc(), arm11_read_dscr(), arm11_read_memory_word(), ARM11_RESTART, ARM11_SC7_BCR0, ARM11_SC7_BVR0, arm11_sc7_clear_vbw(), arm11_sc7_run(), arm_simulate_step(), ARRAY_SIZE, CHECK_RETVAL, DBG_REASON_SINGLESTEP, target::debug_reason, arm11_common::dscr, DSCR_CORE_HALTED, DSCR_CORE_RESTARTED, DSCR_INT_DIS, ERROR_FAIL, ERROR_OK, ERROR_TARGET_NOT_HALTED, arm11_common::hardware_step, jtag_execute_queue(), LOG_DEBUG, LOG_TARGET_ERROR, LOG_WARNING, mask, target::state, arm11_common::step_irq_enable, TAP_IDLE, target_call_event_callbacks(), TARGET_EVENT_HALTED, TARGET_HALTED, TARGET_PRIxADDR, target_state_name(), target_to_arm11(), timeval_ms(), arm11_sc7_action::value, and arm11_sc7_action::write.

Referenced by arm11_resume().

arm11_target_create()

static int arm11_target_create ( struct target *  target, Jim_Interp *  interp  )

static

Definition at line 1084 of file arm11.c.

References arm11_common::arm, ARM11_INTEST, ARM11_SCAN_N, ARM_CORE_TYPE_STD, arm_init_arch_info(), arm::core_type, arm_jtag::cur_scan_chain, ERROR_COMMAND_SYNTAX_ERROR, ERROR_FAIL, ERROR_OK, arm_jtag::intest_instr, jtag_tap::ir_length, arm11_common::jtag_info, LOG_ERROR, arm11_common::memwrite_burst, arm11_common::memwrite_error_fatal, arm_jtag::scann_instr, arm_jtag::scann_size, arm_jtag::tap, and target::tap.

arm11_write_memory()

static int arm11_write_memory ( struct target *  target, target_addr_t  address, uint32_t  size, uint32_t  count, const uint8_t *  buffer  )

static

Definition at line 1033 of file arm11.c.

References arm11_write_memory_inner(), buffer, count, and size.

arm11_write_memory_inner()

static int arm11_write_memory_inner ( struct target *  target, uint32_t  address, uint32_t  size, uint32_t  count, const uint8_t *  buffer, bool  no_increment  )

static

Todo:

TODO: buffer cast to uint32_t* causes alignment warnings

Definition at line 891 of file arm11.c.

References arm11_common::arm, arm11_run_instr_data_finish(), arm11_run_instr_data_from_core(), arm11_run_instr_data_prepare(), arm11_run_instr_data_to_core(), arm11_run_instr_data_to_core1(), arm11_run_instr_data_to_core_noack(), arm11_run_instr_no_data1(), buffer, arm::core_cache, count, reg::dirty, ERROR_FAIL, ERROR_OK, ERROR_TARGET_NOT_HALTED, LOG_DEBUG, LOG_ERROR, LOG_TARGET_ERROR, arm11_common::memwrite_burst, arm11_common::memwrite_error_fatal, reg_cache::reg_list, size, target::state, TARGET_HALTED, and target_to_arm11().

Referenced by arm11_write_memory().

COMMAND_HANDLER()

COMMAND_HANDLER

(

arm11_handle_vcr

)

Definition at line 1254 of file arm11.c.

Variable Documentation

arm11_any_command_handlers

const struct command_registration arm11_any_command_handlers[]

static

Definition at line 1254 of file arm11.c.

arm11_command_handlers

const struct command_registration arm11_command_handlers[]

static

Initial value:

= {
    {
        .chain = arm_command_handlers,
    },
    {
        .chain = etm_command_handlers,
    },
    {
        .name = "arm11",
        .mode = COMMAND_ANY,
        .help = "ARM11 command group",
        .usage = "",
        .chain = arm11_any_command_handlers,
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 1254 of file arm11.c.

arm11_mw_command_handlers

const struct command_registration arm11_mw_command_handlers[]

static

Initial value:

= {
    {
        .name = "burst",
        .handler = arm11_handle_bool_memwrite_burst,
        .mode = COMMAND_ANY,
        .help = "Display or modify flag controlling potentially "
            "risky fast burst mode (default: enabled)",
        .usage = "['enable'|'disable']",
    },
    {
        .name = "error_fatal",
        .handler = arm11_handle_bool_memwrite_error_fatal,
        .mode = COMMAND_ANY,
        .help = "Display or modify flag controlling transfer "
            "termination on transfer errors"
            " (default: enabled)",
        .usage = "['enable'|'disable']",
    },
    COMMAND_REGISTRATION_DONE
}

Definition at line 1254 of file arm11.c.

arm11_target

struct target_type arm11_target

Holds methods for ARM11xx targets.

Definition at line 1254 of file arm11.c.