int handle_arm7_9_dcc_downloads_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_arm7_9_etm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
static int arm7_9_clear_watchpoints(arm7_9_common_t *arm7_9)
{
embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], 0x0);
return jtag_execute_queue();
}
+static void arm7_9_assign_wp(arm7_9_common_t *arm7_9, breakpoint_t *breakpoint)
+{
+ if (!arm7_9->wp0_used)
+ {
+ arm7_9->wp0_used = 1;
+ breakpoint->set = 1;
+ arm7_9->wp_available--;
+ }
+ else if (!arm7_9->wp1_used)
+ {
+ arm7_9->wp1_used = 1;
+ breakpoint->set = 2;
+ arm7_9->wp_available--;
+ }
+ else
+ {
+ LOG_ERROR("BUG: no hardware comparator available");
+ }
+}
+
/* set up embedded ice registers */
static int arm7_9_set_software_breakpoints(arm7_9_common_t *arm7_9)
{
return arm7_9_clear_watchpoints(arm7_9);
}
-
int arm7_9_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, arm7_9_common_t **arm7_9_p)
{
armv4_5_common_t *armv4_5 = target->arch_info;
{
/* either an ARM (4 byte) or Thumb (2 byte) breakpoint */
u32 mask = (breakpoint->length == 4) ? 0x3u : 0x1u;
+
+ /* reassign a hw breakpoint */
+ if (breakpoint->set==0)
+ {
+ arm7_9_assign_wp(arm7_9, breakpoint);
+ }
+
if (breakpoint->set==1)
{
embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_ADDR_VALUE], breakpoint->address);
return retval;
}
- if ((retval = target->type->read_memory(target, breakpoint->address, 4, 1, (u8 *)&verify)) != ERROR_OK)
+ if ((retval = target_read_u32(target, breakpoint->address, &verify)) != ERROR_OK)
{
return retval;
}
return retval;
}
- if ((retval = target->type->read_memory(target, breakpoint->address, 2, 1, (u8 *)&verify)) != ERROR_OK)
+ if ((retval = target_read_u16(target, breakpoint->address, &verify)) != ERROR_OK)
{
return retval;
}
}
return retval;
-
}
int arm7_9_unset_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
{
embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], 0x0);
arm7_9->wp0_used = 0;
+ arm7_9->wp_available++;
}
else if (breakpoint->set == 2)
{
embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_VALUE], 0x0);
arm7_9->wp1_used = 0;
+ arm7_9->wp_available++;
}
retval = jtag_execute_queue();
breakpoint->set = 0;
if (breakpoint->type == BKPT_HARD)
{
- arm7_9->wp_available--;
-
- if (!arm7_9->wp0_used)
- {
- arm7_9->wp0_used = 1;
- breakpoint->set = 1;
- }
- else if (!arm7_9->wp1_used)
- {
- arm7_9->wp1_used = 1;
- breakpoint->set = 2;
- }
- else
- {
- LOG_ERROR("BUG: no hardware comparator available");
- }
+ arm7_9_assign_wp(arm7_9, breakpoint);
}
-
arm7_9->breakpoint_count++;
return arm7_9_set_breakpoint(target, breakpoint);
return ERROR_OK;
}
-
-
-
int arm7_9_execute_sys_speed(struct target_s *target)
{
int retval;
reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
/* set RESTART instruction */
- jtag_add_end_state(TAP_RTI);
+ jtag_add_end_state(TAP_IDLE);
if (arm7_9->need_bypass_before_restart) {
arm7_9->need_bypass_before_restart = 0;
arm_jtag_set_instr(jtag_info, 0xf, NULL);
reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
/* set RESTART instruction */
- jtag_add_end_state(TAP_RTI);
+ jtag_add_end_state(TAP_IDLE);
if (arm7_9->need_bypass_before_restart) {
arm7_9->need_bypass_before_restart = 0;
arm_jtag_set_instr(jtag_info, 0xf, NULL);
/* check for DBGACK and SYSCOMP set (others don't care) */
/* NB! These are constants that must be available until after next jtag_execute() and
- we evaluate the values upon first execution in lieu of setting up these constants
- during early setup.
- */
+ * we evaluate the values upon first execution in lieu of setting up these constants
+ * during early setup.
+ * */
buf_set_u32(check_value, 0, 32, 0x9);
buf_set_u32(check_mask, 0, 32, 0x9);
set=1;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
arm_jtag_t *jtag_info = &arm7_9->jtag_info;
u32 *data;
- int i, retval = ERROR_OK;
+ int retval = ERROR_OK;
+ u32 i;
data = malloc(size * (sizeof(u32)));
arm_jtag_t *jtag_info = &arm7_9->jtag_info;
reg_t *dcc_control = &arm7_9->eice_cache->reg_list[EICE_COMMS_CTRL];
-
if (!target->dbg_msg_enabled)
return ERROR_OK;
jtag_add_reset(0, 1);
}
-
target->state = TARGET_RESET;
jtag_add_sleep(50000);
armv4_5_invalidate_core_regs(target);
- if ((target->reset_halt)&&((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
+ if ((target->reset_halt)&&((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
{
/* debug entry was already prepared in arm7_9_assert_reset() */
target->debug_reason = DBG_REASON_DBGRQ;
}
return ERROR_OK;
-
}
int arm7_9_deassert_reset(target_t *target)
{
int retval=ERROR_OK;
LOG_DEBUG("target->state: %s",
- Jim_Nvp_value2name_simple( nvp_target_state,target->state)->name);
-
+ Jim_Nvp_value2name_simple( nvp_target_state,target->state)->name);
/* deassert reset lines */
jtag_add_reset(0, 0);
arm_jtag_t *jtag_info = &arm7_9->jtag_info;
/* set RESTART instruction */
- jtag_add_end_state(TAP_RTI);
+ jtag_add_end_state(TAP_IDLE);
if (arm7_9->need_bypass_before_restart) {
arm7_9->need_bypass_before_restart = 0;
arm_jtag_set_instr(jtag_info, 0xf, NULL);
}
arm_jtag_set_instr(jtag_info, 0x4, NULL);
- jtag_add_runtest(1, TAP_RTI);
+ jtag_add_runtest(1, TAP_IDLE);
return jtag_execute_queue();
}
}
}
-
int arm7_9_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
{
armv4_5_common_t *armv4_5 = target->arch_info;
if (!current)
buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, address);
+ u32 current_pc;
+ current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
+
/* the front-end may request us not to handle breakpoints */
if (handle_breakpoints)
{
return retval;
}
+ /* calculate PC of next instruction */
+ u32 next_pc;
+ if ((retval = arm_simulate_step(target, &next_pc)) != ERROR_OK)
+ {
+ u32 current_opcode;
+ target_read_u32(target, current_pc, ¤t_opcode);
+ LOG_ERROR("BUG: couldn't calculate PC of next instruction, current opcode was 0x%8.8x", current_opcode);
+ return retval;
+ }
+
LOG_DEBUG("enable single-step");
- arm7_9->enable_single_step(target);
+ arm7_9->enable_single_step(target, next_pc);
target->debug_reason = DBG_REASON_SINGLESTEP;
return ERROR_OK;
}
-void arm7_9_enable_eice_step(target_t *target)
+void arm7_9_enable_eice_step(target_t *target, u32 next_pc)
{
armv4_5_common_t *armv4_5 = target->arch_info;
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
- int retval;
u32 current_pc;
current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
-
- u32 next_pc;
- if ((retval = arm_simulate_step(target, &next_pc)) != ERROR_OK)
- {
- u32 current_opcode;
- target_read_u32(target, current_pc, ¤t_opcode);
- LOG_ERROR("BUG: couldn't calculate PC of next instruction, current opcode was 0x%8.8x", current_opcode);
- return;
- }
if(next_pc != current_pc)
{
if (!current)
buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, address);
+ u32 current_pc;
+ current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
+
/* the front-end may request us not to handle breakpoints */
if (handle_breakpoints)
if ((breakpoint = breakpoint_find(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32))))
target->debug_reason = DBG_REASON_SINGLESTEP;
+ /* calculate PC of next instruction */
+ u32 next_pc;
+ if ((retval = arm_simulate_step(target, &next_pc)) != ERROR_OK)
+ {
+ u32 current_opcode;
+ target_read_u32(target, current_pc, ¤t_opcode);
+ LOG_ERROR("BUG: couldn't calculate PC of next instruction, current opcode was 0x%8.8x", current_opcode);
+ return retval;
+ }
+
if ((retval = arm7_9_restore_context(target)) != ERROR_OK)
{
return retval;
}
- arm7_9->enable_single_step(target);
+ arm7_9->enable_single_step(target, next_pc);
if (armv4_5->core_state == ARMV4_5_STATE_ARM)
{
}
return err;
-
}
int arm7_9_read_core_reg(struct target_s *target, int num, enum armv4_5_mode mode)
}
return ERROR_OK;
-
}
int arm7_9_write_core_reg(struct target_s *target, int num, enum armv4_5_mode mode, u32 value)
arm7_9_common_t *arm7_9 = armv4_5->arch_info;
u32 reg[16];
- int num_accesses = 0;
+ u32 num_accesses = 0;
int thisrun_accesses;
int i;
u32 cpsr;
* from a sufficiently high clock (32 kHz is usually too slow)
*/
if (arm7_9->fast_memory_access)
- arm7_9_execute_fast_sys_speed(target);
+ retval = arm7_9_execute_fast_sys_speed(target);
else
- arm7_9_execute_sys_speed(target);
+ retval = arm7_9_execute_sys_speed(target);
+ if (retval != ERROR_OK)
+ return retval;
arm7_9->read_core_regs_target_buffer(target, reg_list, buffer, 4);
reg_t *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL];
u32 reg[16];
- int num_accesses = 0;
+ u32 num_accesses = 0;
int thisrun_accesses;
int i;
u32 cpsr;
static int dcc_count;
static u8 *dcc_buffer;
-
static int arm7_9_dcc_completion(struct target_s *target, u32 exit_point, int timeout_ms, void *arch_info)
{
int retval = ERROR_OK;
if (count>2)
{
/* Handle first & last using standard embeddedice_write_reg and the middle ones w/the
- core function repeated.
- */
+ * core function repeated. */
embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little));
buffer+=4;
embeddedice_reg_t *ice_reg = arm7_9->eice_cache->reg_list[EICE_COMMS_DATA].arch_info;
u8 reg_addr = ice_reg->addr & 0x1f;
- int chain_pos = ice_reg->jtag_info->chain_pos;
+ jtag_tap_t *tap;
+ tap = ice_reg->jtag_info->tap;
- embeddedice_write_dcc(chain_pos, reg_addr, buffer, little, count-2);
+ embeddedice_write_dcc(tap, reg_addr, buffer, little, count-2);
buffer += (count-2)*4;
embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little));
return target_wait_state(target, TARGET_HALTED, 500);
}
-
static const u32 dcc_code[] =
{
/* MRC TST BNE MRC STR B */
int armv4_5_run_algorithm_inner(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_params, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info, int (*run_it)(struct target_s *target, u32 exit_point, int timeout_ms, void *arch_info));
-
int arm7_9_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffer)
{
int retval;
buf_set_u32(reg_params[0].value, 0, 32, address);
- //armv4_5_run_algorithm_inner(struct target_s *target, int num_mem_params, mem_param_t *mem_params,
- // int num_reg_params, reg_param_t *reg_params, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info, int (*run_it)(struct target_s *target, u32 exit_point, int timeout_ms, void *arch_info))
dcc_count=count;
dcc_buffer=buffer;
retval = armv4_5_run_algorithm_inner(target, 0, NULL, 1, reg_params,
0x04C11DB7 /* CRC32XOR: .word 0x04C11DB7 */
};
- int i;
+ u32 i;
if (target_alloc_working_area(target, sizeof(arm7_9_crc_code), &crc_algorithm) != ERROR_OK)
{
reg_param_t reg_params[3];
armv4_5_algorithm_t armv4_5_info;
int retval;
- int i;
+ u32 i;
u32 erase_check_code[] =
{
register_command(cmd_ctx, arm7_9_cmd, "dbgrq", handle_arm7_9_dbgrq_command,
COMMAND_ANY, "use EmbeddedICE dbgrq instead of breakpoint for target halt requests <enable|disable>");
- register_command(cmd_ctx, arm7_9_cmd, "fast_writes", handle_arm7_9_fast_memory_access_command,
- COMMAND_ANY, "(deprecated, see: arm7_9 fast_memory_access)");
register_command(cmd_ctx, arm7_9_cmd, "fast_memory_access", handle_arm7_9_fast_memory_access_command,
COMMAND_ANY, "use fast memory accesses instead of slower but potentially unsafe slow accesses <enable|disable>");
register_command(cmd_ctx, arm7_9_cmd, "dcc_downloads", handle_arm7_9_dcc_downloads_command,
value = strtoul(args[2], NULL, 0);
return arm7_9_write_core_reg(target, num, mode, value);
-
}
-
int handle_arm7_9_dbgrq_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target = get_current_target(cmd_ctx);
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