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@ -53,53 +53,90 @@ int handle_arm7_9_write_xpsr_command(struct command_context_s *cmd_ctx, char *cm
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int handle_arm7_9_write_xpsr_im8_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_arm7_9_read_core_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_arm7_9_write_core_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_arm7_9_sw_bkpts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_arm7_9_force_hw_bkpts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_arm7_9_dbgrq_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_arm7_9_fast_memory_access_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_arm7_9_dcc_downloads_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_arm7_9_etm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int arm7_9_reinit_embeddedice(target_t *target)
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/* FIX!!! this needs to be overrideable by e.g. fereceon*/
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static int arm7_9_clear_watchpoints(arm7_9_common_t *arm7_9)
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{
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armv4_5_common_t *armv4_5 = target->arch_info;
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arm7_9_common_t *arm7_9 = armv4_5->arch_info;
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breakpoint_t *breakpoint = target->breakpoints;
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arm7_9->wp_available = 2;
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embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], 0x0);
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embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_VALUE], 0x0);
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arm7_9->sw_breakpoints_added = 0;
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arm7_9->wp0_used = 0;
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arm7_9->wp1_used = 0;
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arm7_9->wp_available = 2;
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/* mark all hardware breakpoints as unset */
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while (breakpoint)
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return jtag_execute_queue();
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}
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/* set up embedded ice registers */
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static int arm7_9_set_software_breakpoints(arm7_9_common_t *arm7_9)
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{
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if (arm7_9->sw_breakpoints_added)
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{
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if (breakpoint->type == BKPT_HARD)
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{
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breakpoint->set = 0;
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}
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breakpoint = breakpoint->next;
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return ERROR_OK;
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}
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if (arm7_9->wp_available < 1)
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{
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LOG_WARNING("can't enable sw breakpoints with no watchpoint unit available");
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return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
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}
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arm7_9->wp_available--;
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/* pick a breakpoint unit */
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if (!arm7_9->wp0_used)
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{
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arm7_9->sw_breakpoints_added=1;
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arm7_9->wp0_used = 3;
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} else if (!arm7_9->wp1_used)
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{
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arm7_9->sw_breakpoints_added=2;
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arm7_9->wp1_used = 3;
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}
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else
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{
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LOG_ERROR("BUG: both watchpoints used, but wp_available >= 1");
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return ERROR_FAIL;
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}
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if (arm7_9->sw_bkpts_enabled && arm7_9->sw_bkpts_use_wp)
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if (arm7_9->sw_breakpoints_added==1)
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{
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arm7_9->sw_bkpts_enabled = 0;
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arm7_9_enable_sw_bkpts(target);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_DATA_VALUE], arm7_9->arm_bkpt);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_DATA_MASK], 0x0);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_ADDR_MASK], 0xffffffffu);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_MASK], ~EICE_W_CTRL_nOPC & 0xff);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], EICE_W_CTRL_ENABLE);
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}
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else if (arm7_9->sw_breakpoints_added==2)
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{
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_DATA_VALUE], arm7_9->arm_bkpt);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_DATA_MASK], 0x0);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_ADDR_MASK], 0xffffffffu);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_MASK], ~EICE_W_CTRL_nOPC & 0xff);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_VALUE], EICE_W_CTRL_ENABLE);
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}
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else
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{
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LOG_ERROR("BUG: both watchpoints used, but wp_available >= 1");
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return ERROR_FAIL;
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}
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return ERROR_OK;
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return jtag_execute_queue();
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}
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/* set things up after a reset / on startup */
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int arm7_9_setup(target_t *target)
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{
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/* a test-logic reset have occured
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* the EmbeddedICE registers have been reset
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* hardware breakpoints have been cleared
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*/
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return arm7_9_reinit_embeddedice(target);
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armv4_5_common_t *armv4_5 = target->arch_info;
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arm7_9_common_t *arm7_9 = armv4_5->arch_info;
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return arm7_9_clear_watchpoints(arm7_9);
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}
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int arm7_9_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, arm7_9_common_t **arm7_9_p)
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{
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armv4_5_common_t *armv4_5 = target->arch_info;
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@ -121,10 +158,14 @@ int arm7_9_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, arm
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return ERROR_OK;
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}
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/* we set up the breakpoint even if it is already set. Some action, e.g. reset
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* might have erased the values in embedded ice
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*/
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int arm7_9_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
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{
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armv4_5_common_t *armv4_5 = target->arch_info;
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arm7_9_common_t *arm7_9 = armv4_5->arch_info;
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int retval=ERROR_OK;
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if (target->state != TARGET_HALTED)
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{
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@ -132,51 +173,43 @@ int arm7_9_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
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return ERROR_TARGET_NOT_HALTED;
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}
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if (arm7_9->force_hw_bkpts)
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breakpoint->type = BKPT_HARD;
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if (breakpoint->set)
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{
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LOG_WARNING("breakpoint already set");
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return ERROR_OK;
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}
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if (breakpoint->type == BKPT_HARD)
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{
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/* either an ARM (4 byte) or Thumb (2 byte) breakpoint */
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u32 mask = (breakpoint->length == 4) ? 0x3u : 0x1u;
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if (!arm7_9->wp0_used)
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if (breakpoint->set==1)
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{
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_ADDR_VALUE], breakpoint->address);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_ADDR_MASK], mask);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_DATA_MASK], 0xffffffffu);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_MASK], ~EICE_W_CTRL_nOPC & 0xff);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], EICE_W_CTRL_ENABLE);
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jtag_execute_queue();
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arm7_9->wp0_used = 1;
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breakpoint->set = 1;
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}
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else if (!arm7_9->wp1_used)
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else if (breakpoint->set==2)
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{
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_ADDR_VALUE], breakpoint->address);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_ADDR_MASK], mask);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_DATA_MASK], 0xffffffffu);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_MASK], ~EICE_W_CTRL_nOPC & 0xff);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_VALUE], EICE_W_CTRL_ENABLE);
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jtag_execute_queue();
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arm7_9->wp1_used = 1;
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breakpoint->set = 2;
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}
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else
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{
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LOG_ERROR("BUG: no hardware comparator available");
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return ERROR_OK;
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}
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retval=jtag_execute_queue();
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}
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else if (breakpoint->type == BKPT_SOFT)
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{
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if ((retval=arm7_9_set_software_breakpoints(arm7_9))!=ERROR_OK)
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return retval;
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/* did we already set this breakpoint? */
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if (breakpoint->set)
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return ERROR_OK;
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if (breakpoint->length == 4)
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{
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u32 verify = 0xffffffff;
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@ -210,7 +243,7 @@ int arm7_9_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
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breakpoint->set = 1;
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}
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return ERROR_OK;
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return retval;
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}
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@ -219,12 +252,6 @@ int arm7_9_unset_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
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armv4_5_common_t *armv4_5 = target->arch_info;
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arm7_9_common_t *arm7_9 = armv4_5->arch_info;
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if (target->state != TARGET_HALTED)
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{
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LOG_WARNING("target not halted");
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return ERROR_TARGET_NOT_HALTED;
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}
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if (!breakpoint->set)
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{
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LOG_WARNING("breakpoint not set");
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@ -236,15 +263,14 @@ int arm7_9_unset_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
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if (breakpoint->set == 1)
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{
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], 0x0);
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jtag_execute_queue();
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arm7_9->wp0_used = 0;
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}
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else if (breakpoint->set == 2)
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{
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_VALUE], 0x0);
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jtag_execute_queue();
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arm7_9->wp1_used = 0;
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}
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jtag_execute_queue();
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breakpoint->set = 0;
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}
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else
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@ -283,16 +309,12 @@ int arm7_9_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
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return ERROR_TARGET_NOT_HALTED;
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}
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if (arm7_9->force_hw_bkpts)
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if (arm7_9->breakpoint_count==0)
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{
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LOG_DEBUG("forcing use of hardware breakpoint at address 0x%8.8x", breakpoint->address);
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breakpoint->type = BKPT_HARD;
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}
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if ((breakpoint->type == BKPT_SOFT) && (arm7_9->sw_bkpts_enabled == 0))
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{
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LOG_INFO("sw breakpoint requested, but software breakpoints not enabled");
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return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
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/* make sure we don't have any dangling breakpoints. This is vital upon
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* GDB connect/disconnect
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*/
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arm7_9_clear_watchpoints(arm7_9);
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}
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if ((breakpoint->type == BKPT_HARD) && (arm7_9->wp_available < 1))
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@ -308,9 +330,29 @@ int arm7_9_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
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}
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if (breakpoint->type == BKPT_HARD)
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{
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arm7_9->wp_available--;
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return ERROR_OK;
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if (!arm7_9->wp0_used)
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{
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arm7_9->wp0_used = 1;
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breakpoint->set = 1;
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}
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else if (!arm7_9->wp1_used)
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{
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arm7_9->wp1_used = 1;
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breakpoint->set = 2;
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}
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else
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{
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LOG_ERROR("BUG: no hardware comparator available");
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}
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}
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arm7_9->breakpoint_count++;
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return arm7_9_set_breakpoint(target, breakpoint);
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}
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int arm7_9_remove_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
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@ -318,20 +360,18 @@ int arm7_9_remove_breakpoint(struct target_s *target, breakpoint_t *breakpoint)
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armv4_5_common_t *armv4_5 = target->arch_info;
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arm7_9_common_t *arm7_9 = armv4_5->arch_info;
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if (target->state != TARGET_HALTED)
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{
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LOG_WARNING("target not halted");
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return ERROR_TARGET_NOT_HALTED;
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}
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if (breakpoint->set)
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{
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arm7_9_unset_breakpoint(target, breakpoint);
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}
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arm7_9_unset_breakpoint(target, breakpoint);
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if (breakpoint->type == BKPT_HARD)
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arm7_9->wp_available++;
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arm7_9->breakpoint_count--;
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if (arm7_9->breakpoint_count==0)
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{
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/* make sure we don't have any dangling breakpoints */
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arm7_9_clear_watchpoints(arm7_9);
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}
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return ERROR_OK;
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}
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@ -457,12 +497,6 @@ int arm7_9_remove_watchpoint(struct target_s *target, watchpoint_t *watchpoint)
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armv4_5_common_t *armv4_5 = target->arch_info;
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arm7_9_common_t *arm7_9 = armv4_5->arch_info;
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if (target->state != TARGET_HALTED)
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{
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LOG_WARNING("target not halted");
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return ERROR_TARGET_NOT_HALTED;
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}
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if (watchpoint->set)
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{
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arm7_9_unset_watchpoint(target, watchpoint);
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@ -473,82 +507,8 @@ int arm7_9_remove_watchpoint(struct target_s *target, watchpoint_t *watchpoint)
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return ERROR_OK;
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}
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int arm7_9_enable_sw_bkpts(struct target_s *target)
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{
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armv4_5_common_t *armv4_5 = target->arch_info;
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arm7_9_common_t *arm7_9 = armv4_5->arch_info;
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int retval;
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if (arm7_9->sw_bkpts_enabled)
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return ERROR_OK;
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if (arm7_9->wp_available < 1)
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{
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LOG_WARNING("can't enable sw breakpoints with no watchpoint unit available");
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return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
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}
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arm7_9->wp_available--;
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if (!arm7_9->wp0_used)
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{
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_DATA_VALUE], arm7_9->arm_bkpt);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_DATA_MASK], 0x0);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_ADDR_MASK], 0xffffffffu);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_MASK], ~EICE_W_CTRL_nOPC & 0xff);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], EICE_W_CTRL_ENABLE);
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arm7_9->sw_bkpts_enabled = 1;
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arm7_9->wp0_used = 3;
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}
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else if (!arm7_9->wp1_used)
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{
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_DATA_VALUE], arm7_9->arm_bkpt);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_DATA_MASK], 0x0);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_ADDR_MASK], 0xffffffffu);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_MASK], ~EICE_W_CTRL_nOPC & 0xff);
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embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_VALUE], EICE_W_CTRL_ENABLE);
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arm7_9->sw_bkpts_enabled = 2;
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arm7_9->wp1_used = 3;
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}
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else
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{
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LOG_ERROR("BUG: both watchpoints used, but wp_available >= 1");
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return ERROR_FAIL;
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}
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if ((retval = jtag_execute_queue()) != ERROR_OK)
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{
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LOG_ERROR("error writing EmbeddedICE registers to enable sw breakpoints");
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return ERROR_FAIL;
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};
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return ERROR_OK;
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}
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int arm7_9_disable_sw_bkpts(struct target_s *target)
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{
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armv4_5_common_t *armv4_5 = target->arch_info;
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arm7_9_common_t *arm7_9 = armv4_5->arch_info;
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if (!arm7_9->sw_bkpts_enabled)
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return ERROR_OK;
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if (arm7_9->sw_bkpts_enabled == 1)
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{
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embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], 0x0);
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arm7_9->sw_bkpts_enabled = 0;
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arm7_9->wp0_used = 0;
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arm7_9->wp_available++;
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}
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else if (arm7_9->sw_bkpts_enabled == 2)
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{
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embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W1_CONTROL_VALUE], 0x0);
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arm7_9->sw_bkpts_enabled = 0;
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arm7_9->wp1_used = 0;
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arm7_9->wp_available++;
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}
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return ERROR_OK;
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}
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int arm7_9_execute_sys_speed(struct target_s *target)
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{
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@ -1450,32 +1410,11 @@ void arm7_9_enable_breakpoints(struct target_s *target)
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/* set any pending breakpoints */
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while (breakpoint)
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{
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if (breakpoint->set == 0)
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arm7_9_set_breakpoint(target, breakpoint);
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arm7_9_set_breakpoint(target, breakpoint);
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breakpoint = breakpoint->next;
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}
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}
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void arm7_9_disable_bkpts_and_wpts(struct target_s *target)
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{
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breakpoint_t *breakpoint = target->breakpoints;
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watchpoint_t *watchpoint = target->watchpoints;
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/* set any pending breakpoints */
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while (breakpoint)
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{
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if (breakpoint->set != 0)
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arm7_9_unset_breakpoint(target, breakpoint);
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breakpoint = breakpoint->next;
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}
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while (watchpoint)
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{
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if (watchpoint->set != 0)
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arm7_9_unset_watchpoint(target, watchpoint);
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watchpoint = watchpoint->next;
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}
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}
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int arm7_9_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
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{
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@ -2402,8 +2341,6 @@ int arm7_9_register_commands(struct command_context_s *cmd_ctx)
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register_command(cmd_ctx, arm7_9_cmd, "write_core_reg", handle_arm7_9_write_core_reg_command, COMMAND_EXEC, "write core register <num> <mode> <value>");
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register_command(cmd_ctx, arm7_9_cmd, "sw_bkpts", handle_arm7_9_sw_bkpts_command, COMMAND_EXEC, "support for software breakpoints <enable|disable>");
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register_command(cmd_ctx, arm7_9_cmd, "force_hw_bkpts", handle_arm7_9_force_hw_bkpts_command, COMMAND_EXEC, "use hardware breakpoints for all breakpoints (disables sw breakpoint support) <enable|disable>");
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register_command(cmd_ctx, arm7_9_cmd, "dbgrq", handle_arm7_9_dbgrq_command,
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COMMAND_ANY, "use EmbeddedICE dbgrq instead of breakpoint for target halt requests <enable|disable>");
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register_command(cmd_ctx, arm7_9_cmd, "fast_writes", handle_arm7_9_fast_memory_access_command,
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@ -2542,95 +2479,6 @@ int handle_arm7_9_write_core_reg_command(struct command_context_s *cmd_ctx, char
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return ERROR_OK;
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}
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int handle_arm7_9_sw_bkpts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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{
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target_t *target = get_current_target(cmd_ctx);
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armv4_5_common_t *armv4_5;
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arm7_9_common_t *arm7_9;
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if (target->state != TARGET_HALTED)
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{
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LOG_ERROR("target not halted");
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return ERROR_TARGET_NOT_HALTED;
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}
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if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
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{
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command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
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return ERROR_OK;
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}
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if (argc == 0)
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{
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command_print(cmd_ctx, "software breakpoints %s", (arm7_9->sw_bkpts_enabled) ? "enabled" : "disabled");
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return ERROR_OK;
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}
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if (strcmp("enable", args[0]) == 0)
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{
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if (arm7_9->sw_bkpts_use_wp)
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{
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arm7_9_enable_sw_bkpts(target);
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}
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else
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{
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arm7_9->sw_bkpts_enabled = 1;
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}
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}
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else if (strcmp("disable", args[0]) == 0)
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{
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if (arm7_9->sw_bkpts_use_wp)
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{
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arm7_9_disable_sw_bkpts(target);
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}
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else
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{
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arm7_9->sw_bkpts_enabled = 0;
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}
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}
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else
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{
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command_print(cmd_ctx, "usage: arm7_9 sw_bkpts <enable|disable>");
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}
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command_print(cmd_ctx, "software breakpoints %s", (arm7_9->sw_bkpts_enabled) ? "enabled" : "disabled");
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return ERROR_OK;
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}
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int handle_arm7_9_force_hw_bkpts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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{
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target_t *target = get_current_target(cmd_ctx);
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armv4_5_common_t *armv4_5;
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arm7_9_common_t *arm7_9;
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if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
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{
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command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
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return ERROR_OK;
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}
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if ((argc >= 1) && (strcmp("enable", args[0]) == 0))
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{
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arm7_9->force_hw_bkpts = 1;
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if (arm7_9->sw_bkpts_use_wp)
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{
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arm7_9_disable_sw_bkpts(target);
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}
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}
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else if ((argc >= 1) && (strcmp("disable", args[0]) == 0))
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{
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arm7_9->force_hw_bkpts = 0;
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}
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else
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{
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command_print(cmd_ctx, "usage: arm7_9 force_hw_bkpts <enable|disable>");
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}
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command_print(cmd_ctx, "force hardware breakpoints %s", (arm7_9->force_hw_bkpts) ? "enabled" : "disabled");
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return ERROR_OK;
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}
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int handle_arm7_9_dbgrq_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
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{
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@ -2739,9 +2587,10 @@ int arm7_9_init_arch_info(target_t *target, arm7_9_common_t *arm7_9)
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arm_jtag_setup_connection(&arm7_9->jtag_info);
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arm7_9->wp_available = 2;
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arm7_9->sw_breakpoints_added = 0;
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arm7_9->breakpoint_count = 0;
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arm7_9->wp0_used = 0;
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arm7_9->wp1_used = 0;
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arm7_9->force_hw_bkpts = 0;
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arm7_9->use_dbgrq = 0;
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arm7_9->etm_ctx = NULL;
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