537 lines
14 KiB
C
537 lines
14 KiB
C
/***************************************************************************
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* Copyright (C) 2011 by Broadcom Corporation *
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* Evan Hunter - ehunter@broadcom.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <helper/time_support.h>
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#include <jtag/jtag.h>
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#include "target/target.h"
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#include "target/target_type.h"
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#include "rtos.h"
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#include "helper/log.h"
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#include "rtos_standard_stackings.h"
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static int ThreadX_detect_rtos( struct target* target );
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static int ThreadX_create( struct target* target );
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static int ThreadX_update_threads( struct rtos* rtos);
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static int ThreadX_get_thread_reg_list(struct rtos *rtos, long long thread_id, char ** hex_reg_list );
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static int ThreadX_get_symbol_list_to_lookup(symbol_table_elem_t * symbol_list[]);
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struct ThreadX_thread_state
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{
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int value;
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char * desc;
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};
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struct ThreadX_thread_state ThreadX_thread_states[] =
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{
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{ 0, "Ready" },
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{ 1, "Completed" },
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{ 2, "Terminated" },
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{ 3, "Suspended" },
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{ 4, "Sleeping" },
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{ 5, "Waiting - Queue" },
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{ 6, "Waiting - Semaphore" },
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{ 7, "Waiting - Event flag" },
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{ 8, "Waiting - Memory" },
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{ 9, "Waiting - Memory" },
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{ 10, "Waiting - I/O" },
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{ 11, "Waiting - Filesystem" },
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{ 12, "Waiting - Network" },
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{ 13, "Waiting - Mutex" },
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};
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#define THREADX_NUM_STATES (sizeof(ThreadX_thread_states)/sizeof(struct ThreadX_thread_state))
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struct ThreadX_params
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{
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char * target_name;
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unsigned char pointer_width;
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unsigned char thread_stack_offset;
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unsigned char thread_name_offset;
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unsigned char thread_state_offset;
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unsigned char thread_next_offset;
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const struct rtos_register_stacking* stacking_info;
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};
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const struct ThreadX_params ThreadX_params_list[] =
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{
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{ "cortex_m3", // target_name
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4, // pointer_width;
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8, // thread_stack_offset;
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40, // thread_name_offset;
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48, // thread_state_offset;
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136, // thread_next_offset
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&rtos_standard_Cortex_M3_stacking, // stacking_info
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}
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};
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#define THREADX_NUM_PARAMS ((int)(sizeof(ThreadX_params_list)/sizeof(struct ThreadX_params)))
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enum ThreadX_symbol_values
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{
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ThreadX_VAL_tx_thread_current_ptr = 0,
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ThreadX_VAL_tx_thread_created_ptr = 1,
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ThreadX_VAL_tx_thread_created_count = 2,
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};
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static char* ThreadX_symbol_list[] =
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{
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"_tx_thread_current_ptr",
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"_tx_thread_created_ptr",
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"_tx_thread_created_count",
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NULL
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};
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#define THREADX_NUM_SYMBOLS (sizeof(ThreadX_symbol_list)/sizeof(char*))
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const struct rtos_type ThreadX_rtos =
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{
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.name = "ThreadX",
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.detect_rtos = ThreadX_detect_rtos,
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.create = ThreadX_create,
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.update_threads = ThreadX_update_threads,
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.get_thread_reg_list = ThreadX_get_thread_reg_list,
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.get_symbol_list_to_lookup = ThreadX_get_symbol_list_to_lookup,
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};
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static int ThreadX_update_threads( struct rtos* rtos)
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{
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int retval;
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int tasks_found = 0;
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int thread_list_size = 0;
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const struct ThreadX_params* param;
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if ( rtos == NULL )
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{
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return -1;
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}
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if (rtos->rtos_specific_params == NULL )
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{
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return -3;
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}
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param = (const struct ThreadX_params*) rtos->rtos_specific_params;
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if ( rtos->symbols == NULL )
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{
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LOG_OUTPUT("No symbols for ThreadX\r\n");
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return -4;
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}
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if ( rtos->symbols[ThreadX_VAL_tx_thread_created_count].address == 0 )
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{
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LOG_OUTPUT("Don't have the number of threads in ThreadX \r\n");
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return -2;
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}
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// read the number of threads
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retval = target_read_buffer( rtos->target, rtos->symbols[ThreadX_VAL_tx_thread_created_count].address, 4, (uint8_t *)&thread_list_size);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Could not read ThreadX thread count from target\r\n");
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return retval;
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}
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// wipe out previous thread details if any
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if ( rtos->thread_details != NULL )
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{
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int j;
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for( j = 0; j < rtos->thread_count; j++ )
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{
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if ( rtos->thread_details[j].display_str != NULL )
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{
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free( rtos->thread_details[j].display_str );
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rtos->thread_details[j].display_str = NULL;
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}
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if ( rtos->thread_details[j].thread_name_str != NULL )
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{
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free( rtos->thread_details[j].thread_name_str );
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rtos->thread_details[j].thread_name_str = NULL;
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}
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if ( rtos->thread_details[j].extra_info_str != NULL )
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{
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free( rtos->thread_details[j].extra_info_str );
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rtos->thread_details[j].extra_info_str = NULL;
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}
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}
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free( rtos->thread_details );
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rtos->thread_details = NULL;
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}
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// read the current thread id
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retval = target_read_buffer( rtos->target, rtos->symbols[ThreadX_VAL_tx_thread_current_ptr].address, 4, (uint8_t *)&rtos->current_thread);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Could not read ThreadX current thread from target\r\n");
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return retval;
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}
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if ( ( thread_list_size == 0 ) || ( rtos->current_thread == 0 ) )
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{
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// Either : No RTOS threads - there is always at least the current execution though
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// OR : No current thread - all threads suspended - show the current execution of idling
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char tmp_str[] = "Current Execution";
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thread_list_size++;
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tasks_found++;
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rtos->thread_details = (struct thread_detail*) malloc( sizeof( struct thread_detail ) * thread_list_size );
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rtos->thread_details->threadid = 1;
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rtos->thread_details->exists = true;
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rtos->thread_details->display_str = NULL;
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rtos->thread_details->extra_info_str = NULL;
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rtos->thread_details->thread_name_str = (char*) malloc( sizeof(tmp_str) );
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strcpy( rtos->thread_details->thread_name_str, tmp_str );
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if ( thread_list_size == 0 )
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{
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rtos->thread_count = 1;
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return ERROR_OK;
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}
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}
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else
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{
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// create space for new thread details
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rtos->thread_details = (struct thread_detail*) malloc( sizeof( struct thread_detail ) * thread_list_size );
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}
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// Read the pointer to the first thread
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long long thread_ptr = 0;
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retval = target_read_buffer( rtos->target, rtos->symbols[ThreadX_VAL_tx_thread_created_ptr].address, param->pointer_width, (uint8_t *)&thread_ptr);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Could not read ThreadX thread location from target\r\n");
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return retval;
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}
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// loop over all threads
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long long prev_thread_ptr = 0;
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while ( ( thread_ptr != prev_thread_ptr ) && ( tasks_found < thread_list_size ) )
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{
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#define THREADX_THREAD_NAME_STR_SIZE (200)
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char tmp_str[THREADX_THREAD_NAME_STR_SIZE];
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unsigned int i = 0;
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long long name_ptr = 0;
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// Save the thread pointer
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rtos->thread_details[tasks_found].threadid = thread_ptr;
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// read the name pointer
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retval = target_read_buffer( rtos->target, thread_ptr + param->thread_name_offset, param->pointer_width, (uint8_t *)&name_ptr);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Could not read ThreadX thread name pointer from target\r\n");
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return retval;
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}
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// Read the thread name
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retval = target_read_buffer( rtos->target, name_ptr, THREADX_THREAD_NAME_STR_SIZE, (uint8_t *)&tmp_str);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Error reading thread name from ThreadX target\r\n");
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return retval;
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}
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tmp_str[THREADX_THREAD_NAME_STR_SIZE-1] = '\x00';
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if ( tmp_str[0] == '\x00' )
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{
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strcpy(tmp_str,"No Name");
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}
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rtos->thread_details[tasks_found].thread_name_str = (char*)malloc( strlen(tmp_str)+1 );
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strcpy( rtos->thread_details[tasks_found].thread_name_str, tmp_str );
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// Read the thread status
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long long thread_status = 0;
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retval = target_read_buffer( rtos->target, thread_ptr + param->thread_state_offset, 4, (uint8_t *)&thread_status);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Error reading thread state from ThreadX target\r\n");
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return retval;
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}
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for( i = 0; (i < THREADX_NUM_STATES) && (ThreadX_thread_states[i].value!=thread_status); i++ )
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{
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}
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char * state_desc;
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if (i < THREADX_NUM_STATES)
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{
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state_desc = ThreadX_thread_states[i].desc;
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}
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else
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{
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state_desc = "Unknown state";
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}
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rtos->thread_details[tasks_found].extra_info_str = (char*)malloc( strlen(state_desc)+1 );
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strcpy( rtos->thread_details[tasks_found].extra_info_str, state_desc );
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rtos->thread_details[tasks_found].exists = true;
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rtos->thread_details[tasks_found].display_str = NULL;
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tasks_found++;
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prev_thread_ptr = thread_ptr;
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// Get the location of the next thread structure.
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thread_ptr = 0;
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retval = target_read_buffer( rtos->target, prev_thread_ptr + param->thread_next_offset, param->pointer_width, (uint8_t *) &thread_ptr );
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Error reading next thread pointer in ThreadX thread list\r\n");
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return retval;
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}
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}
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rtos->thread_count = tasks_found;
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return 0;
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}
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static int ThreadX_get_thread_reg_list(struct rtos *rtos, long long thread_id, char ** hex_reg_list )
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{
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int retval;
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const struct ThreadX_params* param;
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*hex_reg_list = NULL;
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if ( rtos == NULL )
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{
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return -1;
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}
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if ( thread_id == 0 )
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{
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return -2;
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}
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if (rtos->rtos_specific_params == NULL )
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{
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return -3;
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}
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param = (const struct ThreadX_params*) rtos->rtos_specific_params;
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// Read the stack pointer
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long long stack_ptr = 0;
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retval = target_read_buffer( rtos->target, thread_id + param->thread_stack_offset, param->pointer_width, (uint8_t*)&stack_ptr);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Error reading stack frame from ThreadX thread\r\n");
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return retval;
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}
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return rtos_generic_stack_read( rtos->target, param->stacking_info, stack_ptr, hex_reg_list );
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}
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static int ThreadX_get_symbol_list_to_lookup(symbol_table_elem_t * symbol_list[])
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{
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unsigned int i;
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*symbol_list = (symbol_table_elem_t *) malloc( sizeof( symbol_table_elem_t ) * THREADX_NUM_SYMBOLS );
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for( i = 0; i < THREADX_NUM_SYMBOLS; i++ )
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{
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(*symbol_list)[i].symbol_name = ThreadX_symbol_list[i];
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}
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return 0;
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}
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static int ThreadX_detect_rtos( struct target* target )
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{
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if ( ( target->rtos->symbols != NULL ) &&
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( target->rtos->symbols[ThreadX_VAL_tx_thread_created_ptr].address != 0 ) )
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{
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// looks like ThreadX
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return 1;
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}
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return 0;
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}
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#if 0
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static int ThreadX_set_current_thread(struct rtos *rtos, threadid_t thread_id)
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{
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return 0;
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}
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static int ThreadX_get_thread_detail( struct rtos* rtos, threadid_t thread_id, struct thread_detail* detail )
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{
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unsigned int i = 0;
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int retval;
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#define THREADX_THREAD_NAME_STR_SIZE (200)
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char tmp_str[THREADX_THREAD_NAME_STR_SIZE];
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const struct ThreadX_params* param;
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if ( rtos == NULL )
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{
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return -1;
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}
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if ( thread_id == 0 )
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{
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return -2;
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}
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if (rtos->rtos_specific_params == NULL )
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{
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return -3;
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}
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param = (const struct ThreadX_params*) rtos->rtos_specific_params;
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if ( rtos->symbols == NULL )
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{
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LOG_OUTPUT("No symbols for ThreadX\r\n");
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return -3;
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}
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detail->threadid = thread_id;
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long long name_ptr = 0;
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// read the name pointer
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retval = target_read_buffer( rtos->target, thread_id + param->thread_name_offset, param->pointer_width, (uint8_t *)&name_ptr);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Could not read ThreadX thread name pointer from target\r\n");
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return retval;
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}
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// Read the thread name
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retval = target_read_buffer( rtos->target, name_ptr, THREADX_THREAD_NAME_STR_SIZE, (uint8_t *)&tmp_str);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Error reading thread name from ThreadX target\r\n");
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return retval;
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}
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tmp_str[THREADX_THREAD_NAME_STR_SIZE-1] = '\x00';
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if ( tmp_str[0] == '\x00' )
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{
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strcpy(tmp_str,"No Name");
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}
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detail->thread_name_str = (char*)malloc( strlen(tmp_str)+1 );
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// Read the thread status
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long long thread_status = 0;
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retval = target_read_buffer( rtos->target, thread_id + param->thread_state_offset, 4, (uint8_t *)&thread_status);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Error reading thread state from ThreadX target\r\n");
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return retval;
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}
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for( i = 0; (i < THREADX_NUM_STATES) && (ThreadX_thread_states[i].value!=thread_status); i++ )
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{
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}
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char * state_desc;
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if (i < THREADX_NUM_STATES)
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{
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state_desc = ThreadX_thread_states[i].desc;
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}
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else
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{
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state_desc = "Unknown state";
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}
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detail->extra_info_str = (char*)malloc( strlen(state_desc)+1 );
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detail->exists = true;
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detail->display_str = NULL;
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return 0;
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}
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#endif
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static int ThreadX_create( struct target* target )
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{
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int i = 0;
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while ( ( i < THREADX_NUM_PARAMS ) && ( 0 != strcmp( ThreadX_params_list[i].target_name, target->type->name ) ) )
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{
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i++;
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}
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if ( i >= THREADX_NUM_PARAMS )
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{
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LOG_OUTPUT("Could not find target in ThreadX compatability list\r\n");
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return -1;
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}
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target->rtos->rtos_specific_params = (void*) &ThreadX_params_list[i];
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target->rtos->current_thread = 0;
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target->rtos->thread_details = NULL;
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return 0;
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}
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