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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., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 "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_m3", // 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
- }
-
- };
-
- #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
- };
-
-
-
- #define THREADX_NUM_SYMBOLS (sizeof(ThreadX_symbol_list)/sizeof(char*))
-
-
- 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_OUTPUT("No symbols for ThreadX\r\n");
- return -4;
- }
-
- if ( rtos->symbols[ThreadX_VAL_tx_thread_created_count].address == 0 )
- {
- LOG_OUTPUT("Don't have the number of threads in ThreadX \r\n");
- 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_OUTPUT("Could not read ThreadX thread count from target\r\n");
- return retval;
- }
-
-
- // wipe out previous thread details if any
- if ( rtos->thread_details != NULL )
- {
- int j;
- for( j = 0; j < rtos->thread_count; j++ )
- {
- if ( rtos->thread_details[j].display_str != NULL )
- {
- free( rtos->thread_details[j].display_str );
- rtos->thread_details[j].display_str = NULL;
- }
- if ( rtos->thread_details[j].thread_name_str != NULL )
- {
- free( rtos->thread_details[j].thread_name_str );
- rtos->thread_details[j].thread_name_str = NULL;
- }
- if ( rtos->thread_details[j].extra_info_str != NULL )
- {
- free( rtos->thread_details[j].extra_info_str );
- rtos->thread_details[j].extra_info_str = NULL;
- }
- }
- free( rtos->thread_details );
- rtos->thread_details = NULL;
- }
-
-
- // 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_OUTPUT("Could not read ThreadX current thread from target\r\n");
- 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_OUTPUT("Could not read ThreadX thread location from target\r\n");
- 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_OUTPUT("Could not read ThreadX thread name pointer from target\r\n");
- 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_OUTPUT("Error reading thread name from ThreadX target\r\n");
- 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_OUTPUT("Error reading thread state from ThreadX target\r\n");
- return retval;
- }
-
- for( i = 0; (i < THREADX_NUM_STATES) && (ThreadX_thread_states[i].value!=thread_status); i++ )
- {
- }
-
-
- 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_OUTPUT("Error reading next thread pointer in ThreadX thread list\r\n");
- 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_OUTPUT("Error reading stack frame from ThreadX thread\r\n");
- 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 ) * THREADX_NUM_SYMBOLS );
-
- for( i = 0; i < THREADX_NUM_SYMBOLS; 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_OUTPUT("No symbols for ThreadX\r\n");
- 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_OUTPUT("Could not read ThreadX thread name pointer from target\r\n");
- 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_OUTPUT("Error reading thread name from ThreadX target\r\n");
- 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_OUTPUT("Error reading thread state from ThreadX target\r\n");
- return retval;
- }
-
- for( i = 0; (i < THREADX_NUM_STATES) && (ThreadX_thread_states[i].value!=thread_status); i++ )
- {
- }
-
-
- 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_OUTPUT("Could not find target in ThreadX compatibility list\r\n");
- 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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