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- /***************************************************************************
- * Copyright (C) 2011 by Broadcom Corporation *
- * Evan Hunter - ehunter@broadcom.com *
- * *
- * 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 *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * 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., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
- ***************************************************************************/
-
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include <helper/time_support.h>
- #include <jtag/jtag.h>
- #include "target/target.h"
- #include "target/target_type.h"
- #include "rtos.h"
- #include "helper/log.h"
- #include "helper/types.h"
- #include "rtos_standard_stackings.h"
-
- static int ThreadX_detect_rtos(struct target *target);
- static int ThreadX_create(struct target *target);
- static int ThreadX_update_threads(struct rtos *rtos);
- static int ThreadX_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, char **hex_reg_list);
- static int ThreadX_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[]);
-
- struct ThreadX_thread_state {
- int value;
- char *desc;
- };
-
- struct ThreadX_thread_state ThreadX_thread_states[] = {
- { 0, "Ready" },
- { 1, "Completed" },
- { 2, "Terminated" },
- { 3, "Suspended" },
- { 4, "Sleeping" },
- { 5, "Waiting - Queue" },
- { 6, "Waiting - Semaphore" },
- { 7, "Waiting - Event flag" },
- { 8, "Waiting - Memory" },
- { 9, "Waiting - Memory" },
- { 10, "Waiting - I/O" },
- { 11, "Waiting - Filesystem" },
- { 12, "Waiting - Network" },
- { 13, "Waiting - Mutex" },
- };
-
- #define THREADX_NUM_STATES (sizeof(ThreadX_thread_states)/sizeof(struct ThreadX_thread_state))
-
- struct ThreadX_params {
- char *target_name;
- unsigned char pointer_width;
- unsigned char thread_stack_offset;
- unsigned char thread_name_offset;
- unsigned char thread_state_offset;
- unsigned char thread_next_offset;
- const struct rtos_register_stacking *stacking_info;
- };
-
- const struct ThreadX_params ThreadX_params_list[] = {
- {
- "cortex_m", /* target_name */
- 4, /* pointer_width; */
- 8, /* thread_stack_offset; */
- 40, /* thread_name_offset; */
- 48, /* thread_state_offset; */
- 136, /* thread_next_offset */
- &rtos_standard_Cortex_M3_stacking, /* stacking_info */
- },
- {
- "cortex_r4", /* target_name */
- 4, /* pointer_width; */
- 8, /* thread_stack_offset; */
- 40, /* thread_name_offset; */
- 48, /* thread_state_offset; */
- 136, /* thread_next_offset */
- &rtos_standard_Cortex_R4_stacking, /* stacking_info */
- },
- };
-
- #define THREADX_NUM_PARAMS ((int)(sizeof(ThreadX_params_list)/sizeof(struct ThreadX_params)))
-
- enum ThreadX_symbol_values {
- ThreadX_VAL_tx_thread_current_ptr = 0,
- ThreadX_VAL_tx_thread_created_ptr = 1,
- ThreadX_VAL_tx_thread_created_count = 2,
- };
-
- static char *ThreadX_symbol_list[] = {
- "_tx_thread_current_ptr",
- "_tx_thread_created_ptr",
- "_tx_thread_created_count",
- NULL
- };
-
- const struct rtos_type ThreadX_rtos = {
- .name = "ThreadX",
-
- .detect_rtos = ThreadX_detect_rtos,
- .create = ThreadX_create,
- .update_threads = ThreadX_update_threads,
- .get_thread_reg_list = ThreadX_get_thread_reg_list,
- .get_symbol_list_to_lookup = ThreadX_get_symbol_list_to_lookup,
-
- };
-
- static int ThreadX_update_threads(struct rtos *rtos)
- {
- int retval;
- int tasks_found = 0;
- int thread_list_size = 0;
- const struct ThreadX_params *param;
-
- if (rtos == NULL)
- return -1;
-
- if (rtos->rtos_specific_params == NULL)
- return -3;
-
- param = (const struct ThreadX_params *) rtos->rtos_specific_params;
-
- if (rtos->symbols == NULL) {
- LOG_ERROR("No symbols for ThreadX");
- return -4;
- }
-
- if (rtos->symbols[ThreadX_VAL_tx_thread_created_count].address == 0) {
- LOG_ERROR("Don't have the number of threads in ThreadX");
- return -2;
- }
-
- /* read the number of threads */
- retval = target_read_buffer(rtos->target,
- rtos->symbols[ThreadX_VAL_tx_thread_created_count].address,
- 4,
- (uint8_t *)&thread_list_size);
-
- if (retval != ERROR_OK) {
- LOG_ERROR("Could not read ThreadX thread count from target");
- return retval;
- }
-
- /* wipe out previous thread details if any */
- rtos_free_threadlist(rtos);
-
- /* read the current thread id */
- retval = target_read_buffer(rtos->target,
- rtos->symbols[ThreadX_VAL_tx_thread_current_ptr].address,
- 4,
- (uint8_t *)&rtos->current_thread);
-
- if (retval != ERROR_OK) {
- LOG_ERROR("Could not read ThreadX current thread from target");
- return retval;
- }
-
- if ((thread_list_size == 0) || (rtos->current_thread == 0)) {
- /* Either : No RTOS threads - there is always at least the current execution though */
- /* OR : No current thread - all threads suspended - show the current execution
- * of idling */
- char tmp_str[] = "Current Execution";
- thread_list_size++;
- tasks_found++;
- rtos->thread_details = (struct thread_detail *) malloc(
- sizeof(struct thread_detail) * thread_list_size);
- rtos->thread_details->threadid = 1;
- rtos->thread_details->exists = true;
- rtos->thread_details->display_str = NULL;
- rtos->thread_details->extra_info_str = NULL;
- rtos->thread_details->thread_name_str = (char *) malloc(sizeof(tmp_str));
- strcpy(rtos->thread_details->thread_name_str, tmp_str);
-
- if (thread_list_size == 0) {
- rtos->thread_count = 1;
- return ERROR_OK;
- }
- } else {
- /* create space for new thread details */
- rtos->thread_details = (struct thread_detail *) malloc(
- sizeof(struct thread_detail) * thread_list_size);
- }
-
- /* Read the pointer to the first thread */
- int64_t thread_ptr = 0;
- retval = target_read_buffer(rtos->target,
- rtos->symbols[ThreadX_VAL_tx_thread_created_ptr].address,
- param->pointer_width,
- (uint8_t *)&thread_ptr);
- if (retval != ERROR_OK) {
- LOG_ERROR("Could not read ThreadX thread location from target");
- return retval;
- }
-
- /* loop over all threads */
- int64_t prev_thread_ptr = 0;
- while ((thread_ptr != prev_thread_ptr) && (tasks_found < thread_list_size)) {
-
- #define THREADX_THREAD_NAME_STR_SIZE (200)
- char tmp_str[THREADX_THREAD_NAME_STR_SIZE];
- unsigned int i = 0;
- int64_t name_ptr = 0;
-
- /* Save the thread pointer */
- rtos->thread_details[tasks_found].threadid = thread_ptr;
-
- /* read the name pointer */
- retval = target_read_buffer(rtos->target,
- thread_ptr + param->thread_name_offset,
- param->pointer_width,
- (uint8_t *)&name_ptr);
- if (retval != ERROR_OK) {
- LOG_ERROR("Could not read ThreadX thread name pointer from target");
- return retval;
- }
-
- /* Read the thread name */
- retval =
- target_read_buffer(rtos->target,
- name_ptr,
- THREADX_THREAD_NAME_STR_SIZE,
- (uint8_t *)&tmp_str);
- if (retval != ERROR_OK) {
- LOG_ERROR("Error reading thread name from ThreadX target");
- return retval;
- }
- tmp_str[THREADX_THREAD_NAME_STR_SIZE-1] = '\x00';
-
- if (tmp_str[0] == '\x00')
- strcpy(tmp_str, "No Name");
-
- rtos->thread_details[tasks_found].thread_name_str =
- (char *)malloc(strlen(tmp_str)+1);
- strcpy(rtos->thread_details[tasks_found].thread_name_str, tmp_str);
-
- /* Read the thread status */
- int64_t thread_status = 0;
- retval = target_read_buffer(rtos->target,
- thread_ptr + param->thread_state_offset,
- 4,
- (uint8_t *)&thread_status);
- if (retval != ERROR_OK) {
- LOG_ERROR("Error reading thread state from ThreadX target");
- return retval;
- }
-
- for (i = 0; (i < THREADX_NUM_STATES) &&
- (ThreadX_thread_states[i].value != thread_status); i++) {
- /* empty */
- }
-
- char *state_desc;
- if (i < THREADX_NUM_STATES)
- state_desc = ThreadX_thread_states[i].desc;
- else
- state_desc = "Unknown state";
-
- rtos->thread_details[tasks_found].extra_info_str = (char *)malloc(strlen(
- state_desc)+1);
- strcpy(rtos->thread_details[tasks_found].extra_info_str, state_desc);
-
- rtos->thread_details[tasks_found].exists = true;
-
- rtos->thread_details[tasks_found].display_str = NULL;
-
- tasks_found++;
- prev_thread_ptr = thread_ptr;
-
- /* Get the location of the next thread structure. */
- thread_ptr = 0;
- retval = target_read_buffer(rtos->target,
- prev_thread_ptr + param->thread_next_offset,
- param->pointer_width,
- (uint8_t *) &thread_ptr);
- if (retval != ERROR_OK) {
- LOG_ERROR("Error reading next thread pointer in ThreadX thread list");
- return retval;
- }
- }
-
- rtos->thread_count = tasks_found;
-
- return 0;
- }
-
- static int ThreadX_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, char **hex_reg_list)
- {
- int retval;
- const struct ThreadX_params *param;
-
- *hex_reg_list = NULL;
-
- if (rtos == NULL)
- return -1;
-
- if (thread_id == 0)
- return -2;
-
- if (rtos->rtos_specific_params == NULL)
- return -3;
-
- param = (const struct ThreadX_params *) rtos->rtos_specific_params;
-
- /* Read the stack pointer */
- int64_t stack_ptr = 0;
- retval = target_read_buffer(rtos->target,
- thread_id + param->thread_stack_offset,
- param->pointer_width,
- (uint8_t *)&stack_ptr);
- if (retval != ERROR_OK) {
- LOG_ERROR("Error reading stack frame from ThreadX thread");
- return retval;
- }
-
- return rtos_generic_stack_read(rtos->target, param->stacking_info, stack_ptr, hex_reg_list);
- }
-
- static int ThreadX_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
- {
- unsigned int i;
- *symbol_list = (symbol_table_elem_t *) malloc(
- sizeof(symbol_table_elem_t) * ARRAY_SIZE(ThreadX_symbol_list));
-
- for (i = 0; i < ARRAY_SIZE(ThreadX_symbol_list); i++)
- (*symbol_list)[i].symbol_name = ThreadX_symbol_list[i];
-
- return 0;
- }
-
- static int ThreadX_detect_rtos(struct target *target)
- {
- if ((target->rtos->symbols != NULL) &&
- (target->rtos->symbols[ThreadX_VAL_tx_thread_created_ptr].address != 0)) {
- /* looks like ThreadX */
- return 1;
- }
- return 0;
- }
-
- #if 0
-
- static int ThreadX_set_current_thread(struct rtos *rtos, threadid_t thread_id)
- {
- return 0;
- }
-
- static int ThreadX_get_thread_detail(struct rtos *rtos,
- threadid_t thread_id,
- struct thread_detail *detail)
- {
- unsigned int i = 0;
- int retval;
-
- #define THREADX_THREAD_NAME_STR_SIZE (200)
- char tmp_str[THREADX_THREAD_NAME_STR_SIZE];
-
- const struct ThreadX_params *param;
-
- if (rtos == NULL)
- return -1;
-
- if (thread_id == 0)
- return -2;
-
- if (rtos->rtos_specific_params == NULL)
- return -3;
-
- param = (const struct ThreadX_params *) rtos->rtos_specific_params;
-
- if (rtos->symbols == NULL) {
- LOG_ERROR("No symbols for ThreadX");
- return -3;
- }
-
- detail->threadid = thread_id;
-
- int64_t name_ptr = 0;
- /* read the name pointer */
- retval = target_read_buffer(rtos->target,
- thread_id + param->thread_name_offset,
- param->pointer_width,
- (uint8_t *)&name_ptr);
- if (retval != ERROR_OK) {
- LOG_ERROR("Could not read ThreadX thread name pointer from target");
- return retval;
- }
-
- /* Read the thread name */
- retval = target_read_buffer(rtos->target,
- name_ptr,
- THREADX_THREAD_NAME_STR_SIZE,
- (uint8_t *)&tmp_str);
- if (retval != ERROR_OK) {
- LOG_ERROR("Error reading thread name from ThreadX target");
- return retval;
- }
- tmp_str[THREADX_THREAD_NAME_STR_SIZE-1] = '\x00';
-
- if (tmp_str[0] == '\x00')
- strcpy(tmp_str, "No Name");
-
- detail->thread_name_str = (char *)malloc(strlen(tmp_str)+1);
-
- /* Read the thread status */
- int64_t thread_status = 0;
- retval =
- target_read_buffer(rtos->target,
- thread_id + param->thread_state_offset,
- 4,
- (uint8_t *)&thread_status);
- if (retval != ERROR_OK) {
- LOG_ERROR("Error reading thread state from ThreadX target");
- return retval;
- }
-
- for (i = 0; (i < THREADX_NUM_STATES) &&
- (ThreadX_thread_states[i].value != thread_status); i++) {
- /* empty */
- }
-
- char *state_desc;
- if (i < THREADX_NUM_STATES)
- state_desc = ThreadX_thread_states[i].desc;
- else
- state_desc = "Unknown state";
-
- detail->extra_info_str = (char *)malloc(strlen(state_desc)+1);
-
- detail->exists = true;
-
- detail->display_str = NULL;
-
- return 0;
- }
-
- #endif
-
- static int ThreadX_create(struct target *target)
- {
- int i = 0;
- while ((i < THREADX_NUM_PARAMS) &&
- (0 != strcmp(ThreadX_params_list[i].target_name, target->type->name))) {
- i++;
- }
- if (i >= THREADX_NUM_PARAMS) {
- LOG_ERROR("Could not find target in ThreadX compatibility list");
- return -1;
- }
-
- target->rtos->rtos_specific_params = (void *) &ThreadX_params_list[i];
- target->rtos->current_thread = 0;
- target->rtos->thread_details = NULL;
- return 0;
- }
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