2011-05-23 14:32:00 -05:00
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/***************************************************************************
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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_ecos_stackings.h"
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2012-01-30 09:32:53 -06:00
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static int eCos_detect_rtos(struct target *target);
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static int eCos_create(struct target *target);
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static int eCos_update_threads(struct rtos *rtos);
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static int eCos_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, char **hex_reg_list);
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static int eCos_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[]);
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2011-05-23 14:32:00 -05:00
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2012-01-30 09:32:53 -06:00
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struct eCos_thread_state {
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2011-05-23 14:32:00 -05:00
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int value;
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2012-01-30 09:32:53 -06:00
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char *desc;
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2011-05-23 14:32:00 -05:00
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};
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2012-01-30 09:32:53 -06:00
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struct eCos_thread_state eCos_thread_states[] = {
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{ 0, "Ready" },
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{ 1, "Sleeping" },
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{ 2, "Countsleep" },
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{ 4, "Suspended" },
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{ 8, "Creating" },
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{ 16, "Exited" }
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2011-05-23 14:32:00 -05:00
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};
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#define ECOS_NUM_STATES (sizeof(eCos_thread_states)/sizeof(struct eCos_thread_state))
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2012-01-30 09:32:53 -06:00
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struct eCos_params {
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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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unsigned char thread_uniqueid_offset;
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const struct rtos_register_stacking *stacking_info;
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2011-05-23 14:32:00 -05:00
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};
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2012-01-30 09:32:53 -06:00
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const struct eCos_params eCos_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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0x0c, /* thread_stack_offset; */
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0x9c, /* thread_name_offset; */
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0x3c, /* thread_state_offset; */
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0xa0, /* thread_next_offset */
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0x4c, /* thread_uniqueid_offset */
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&rtos_eCos_Cortex_M3_stacking /* stacking_info */
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2011-05-23 14:32:00 -05:00
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}
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};
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#define ECOS_NUM_PARAMS ((int)(sizeof(eCos_params_list)/sizeof(struct eCos_params)))
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2012-01-30 09:32:53 -06:00
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enum eCos_symbol_values {
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eCos_VAL_thread_list = 0,
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eCos_VAL_current_thread_ptr = 1
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2011-05-23 14:32:00 -05:00
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};
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2012-01-30 09:32:53 -06:00
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static char *eCos_symbol_list[] = {
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"Cyg_Thread::thread_list",
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"Cyg_Scheduler_Base::current_thread",
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NULL
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2011-05-23 14:32:00 -05:00
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};
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2012-01-30 09:32:53 -06:00
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#define ECOS_NUM_SYMBOLS (sizeof(eCos_symbol_list)/sizeof(char *))
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2011-05-23 14:32:00 -05:00
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2012-01-30 09:32:53 -06:00
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const struct rtos_type eCos_rtos = {
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.name = "eCos",
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2011-05-23 14:32:00 -05:00
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2012-01-30 09:32:53 -06:00
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.detect_rtos = eCos_detect_rtos,
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.create = eCos_create,
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.update_threads = eCos_update_threads,
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.get_thread_reg_list = eCos_get_thread_reg_list,
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2011-05-23 14:32:00 -05:00
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.get_symbol_list_to_lookup = eCos_get_symbol_list_to_lookup,
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};
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2012-01-30 09:32:53 -06:00
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static int eCos_update_threads(struct rtos *rtos)
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2011-05-23 14:32:00 -05:00
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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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2012-01-30 09:32:53 -06:00
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const struct eCos_params *param;
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2011-05-23 14:32:00 -05:00
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2012-01-30 09:32:53 -06:00
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if (rtos == NULL)
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2011-05-23 14:32:00 -05:00
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return -1;
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2012-01-30 09:32:53 -06:00
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if (rtos->rtos_specific_params == NULL)
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2011-05-23 14:32:00 -05:00
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return -3;
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2012-01-30 09:32:53 -06:00
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param = (const struct eCos_params *) rtos->rtos_specific_params;
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2011-05-23 14:32:00 -05:00
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2012-01-30 09:32:53 -06:00
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if (rtos->symbols == NULL) {
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2011-05-23 14:32:00 -05:00
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LOG_OUTPUT("No symbols for eCos\r\n");
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return -4;
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}
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2012-01-30 09:32:53 -06:00
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if (rtos->symbols[eCos_VAL_thread_list].address == 0) {
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2011-05-23 14:32:00 -05:00
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LOG_OUTPUT("Don't have the thread list head\r\n");
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return -2;
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}
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2012-01-30 09:32:53 -06:00
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/* wipe out previous thread details if any */
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if (rtos->thread_details != NULL) {
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2011-05-23 14:32:00 -05:00
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int j;
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2012-01-30 09:32:53 -06:00
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for (j = 0; j < rtos->thread_count; j++) {
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if (rtos->thread_details[j].display_str != NULL) {
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free(rtos->thread_details[j].display_str);
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2011-05-23 14:32:00 -05:00
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rtos->thread_details[j].display_str = NULL;
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}
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2012-01-30 09:32:53 -06:00
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if (rtos->thread_details[j].thread_name_str != NULL) {
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free(rtos->thread_details[j].thread_name_str);
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2011-05-23 14:32:00 -05:00
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rtos->thread_details[j].thread_name_str = NULL;
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}
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2012-01-30 09:32:53 -06:00
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if (rtos->thread_details[j].extra_info_str != NULL) {
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free(rtos->thread_details[j].extra_info_str);
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2011-05-23 14:32:00 -05:00
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rtos->thread_details[j].extra_info_str = NULL;
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}
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}
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2012-01-30 09:32:53 -06:00
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free(rtos->thread_details);
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2011-05-23 14:32:00 -05:00
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rtos->thread_details = NULL;
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}
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2012-01-30 09:32:53 -06:00
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/* determine the number of current threads */
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2011-05-23 14:32:00 -05:00
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uint32_t thread_list_head = rtos->symbols[eCos_VAL_thread_list].address;
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uint32_t thread_index;
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2012-01-30 09:32:53 -06:00
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target_read_buffer(rtos->target,
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thread_list_head,
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param->pointer_width,
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(uint8_t *) &thread_index);
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2011-05-23 14:32:00 -05:00
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uint32_t first_thread = thread_index;
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2012-01-30 09:32:53 -06:00
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do {
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2011-05-23 14:32:00 -05:00
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thread_list_size++;
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2012-01-30 09:32:53 -06:00
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retval = target_read_buffer(rtos->target,
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thread_index + param->thread_next_offset,
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param->pointer_width,
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(uint8_t *) &thread_index);
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2011-11-06 23:59:03 -06:00
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if (retval != ERROR_OK)
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return retval;
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2012-01-30 09:32:53 -06:00
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} while (thread_index != first_thread);
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2011-05-23 14:32:00 -05:00
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2012-01-30 09:32:53 -06:00
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/* read the current thread id */
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2011-05-23 14:32:00 -05:00
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uint32_t current_thread_addr;
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2012-01-30 09:32:53 -06:00
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retval = target_read_buffer(rtos->target,
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rtos->symbols[eCos_VAL_current_thread_ptr].address,
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4,
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(uint8_t *)¤t_thread_addr);
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2011-11-06 23:59:03 -06:00
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if (retval != ERROR_OK)
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return retval;
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2011-05-23 14:32:00 -05:00
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rtos->current_thread = 0;
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2012-01-30 09:32:53 -06:00
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retval = target_read_buffer(rtos->target,
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current_thread_addr + param->thread_uniqueid_offset,
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2,
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(uint8_t *)&rtos->current_thread);
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if (retval != ERROR_OK) {
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2011-05-23 14:32:00 -05:00
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LOG_OUTPUT("Could not read eCos current thread from target\r\n");
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return retval;
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}
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2012-01-30 09:32:53 -06:00
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if ((thread_list_size == 0) || (rtos->current_thread == 0)) {
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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
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* of idling */
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2011-05-23 14:32:00 -05:00
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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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2012-01-30 09:32:53 -06:00
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rtos->thread_details = (struct thread_detail *) malloc(
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sizeof(struct thread_detail) * thread_list_size);
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2011-05-23 14:32:00 -05:00
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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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2012-01-30 09:32:53 -06:00
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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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2011-05-23 14:32:00 -05:00
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2012-01-30 09:32:53 -06:00
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if (thread_list_size == 0) {
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2011-05-23 14:32:00 -05:00
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rtos->thread_count = 1;
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return ERROR_OK;
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}
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2012-01-30 09:32:53 -06:00
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} else {
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/* create space for new thread details */
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rtos->thread_details = (struct thread_detail *) malloc(
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sizeof(struct thread_detail) * thread_list_size);
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2011-05-23 14:32:00 -05:00
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}
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2012-01-30 09:32:53 -06:00
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/* loop over all threads */
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2011-05-23 14:32:00 -05:00
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thread_index = first_thread;
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2012-01-30 09:32:53 -06:00
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do {
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2011-05-23 14:32:00 -05:00
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#define ECOS_THREAD_NAME_STR_SIZE (200)
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char tmp_str[ECOS_THREAD_NAME_STR_SIZE];
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unsigned int i = 0;
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uint32_t name_ptr = 0;
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uint32_t prev_thread_ptr;
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2012-01-30 09:32:53 -06:00
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/* Save the thread pointer */
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2011-05-23 14:32:00 -05:00
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uint16_t thread_id;
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2012-01-30 09:32:53 -06:00
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retval = target_read_buffer(rtos->target,
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thread_index + param->thread_uniqueid_offset,
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2,
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(uint8_t *)&thread_id);
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if (retval != ERROR_OK) {
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2011-05-23 14:32:00 -05:00
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LOG_OUTPUT("Could not read eCos thread id from target\r\n");
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return retval;
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}
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rtos->thread_details[tasks_found].threadid = thread_id;
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2012-01-30 09:32:53 -06:00
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/* read the name pointer */
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retval = target_read_buffer(rtos->target,
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thread_index + param->thread_name_offset,
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param->pointer_width,
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(uint8_t *)&name_ptr);
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if (retval != ERROR_OK) {
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2011-05-23 14:32:00 -05:00
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LOG_OUTPUT("Could not read eCos thread name pointer from target\r\n");
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return retval;
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}
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2012-01-30 09:32:53 -06:00
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/* Read the thread name */
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retval =
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target_read_buffer(rtos->target,
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name_ptr,
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ECOS_THREAD_NAME_STR_SIZE,
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(uint8_t *)&tmp_str);
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if (retval != ERROR_OK) {
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2011-05-23 14:32:00 -05:00
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LOG_OUTPUT("Error reading thread name from eCos target\r\n");
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return retval;
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}
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tmp_str[ECOS_THREAD_NAME_STR_SIZE-1] = '\x00';
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2012-01-30 09:32:53 -06:00
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if (tmp_str[0] == '\x00')
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strcpy(tmp_str, "No Name");
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2011-05-23 14:32:00 -05:00
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2012-01-30 09:32:53 -06:00
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rtos->thread_details[tasks_found].thread_name_str =
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(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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2011-05-23 14:32:00 -05:00
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2012-01-30 09:32:53 -06:00
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/* Read the thread status */
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2011-05-23 14:32:00 -05:00
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int64_t thread_status = 0;
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2012-01-30 09:32:53 -06:00
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retval = target_read_buffer(rtos->target,
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thread_index + param->thread_state_offset,
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4,
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(uint8_t *)&thread_status);
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if (retval != ERROR_OK) {
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2011-05-23 14:32:00 -05:00
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LOG_OUTPUT("Error reading thread state from eCos target\r\n");
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return retval;
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}
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2012-01-30 09:32:53 -06:00
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for (i = 0; (i < ECOS_NUM_STATES) && (eCos_thread_states[i].value != thread_status); i++) {
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/*
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* empty
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*/
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2011-05-23 14:32:00 -05:00
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}
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2012-01-30 09:32:53 -06:00
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char *state_desc;
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2011-05-23 14:32:00 -05:00
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if (i < ECOS_NUM_STATES)
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state_desc = eCos_thread_states[i].desc;
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else
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state_desc = "Unknown state";
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2012-01-30 09:32:53 -06:00
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rtos->thread_details[tasks_found].extra_info_str = (char *)malloc(strlen(
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state_desc)+1);
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strcpy(rtos->thread_details[tasks_found].extra_info_str, state_desc);
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2011-05-23 14:32:00 -05:00
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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++;
|
|
|
|
prev_thread_ptr = thread_index;
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
/* Get the location of the next thread structure. */
|
2011-05-23 14:32:00 -05:00
|
|
|
thread_index = rtos->symbols[eCos_VAL_thread_list].address;
|
2012-01-30 09:32:53 -06:00
|
|
|
retval = target_read_buffer(rtos->target,
|
|
|
|
prev_thread_ptr + param->thread_next_offset,
|
|
|
|
param->pointer_width,
|
|
|
|
(uint8_t *) &thread_index);
|
|
|
|
if (retval != ERROR_OK) {
|
2011-05-23 14:32:00 -05:00
|
|
|
LOG_OUTPUT("Error reading next thread pointer in eCos thread list\r\n");
|
|
|
|
return retval;
|
|
|
|
}
|
2012-01-30 09:32:53 -06:00
|
|
|
} while (thread_index != first_thread);
|
2011-05-23 14:32:00 -05:00
|
|
|
|
|
|
|
rtos->thread_count = tasks_found;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
static int eCos_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, char **hex_reg_list)
|
2011-05-23 14:32:00 -05:00
|
|
|
{
|
|
|
|
int retval;
|
2012-01-30 09:32:53 -06:00
|
|
|
const struct eCos_params *param;
|
2011-05-23 14:32:00 -05:00
|
|
|
|
|
|
|
*hex_reg_list = NULL;
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
if (rtos == NULL)
|
2011-05-23 14:32:00 -05:00
|
|
|
return -1;
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
if (thread_id == 0)
|
2011-05-23 14:32:00 -05:00
|
|
|
return -2;
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
if (rtos->rtos_specific_params == NULL)
|
2011-05-23 14:32:00 -05:00
|
|
|
return -3;
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
param = (const struct eCos_params *) rtos->rtos_specific_params;
|
2011-05-23 14:32:00 -05:00
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
/* Find the thread with that thread id */
|
|
|
|
uint16_t id = 0;
|
2011-05-23 14:32:00 -05:00
|
|
|
uint32_t thread_list_head = rtos->symbols[eCos_VAL_thread_list].address;
|
|
|
|
uint32_t thread_index;
|
2012-01-30 09:32:53 -06:00
|
|
|
target_read_buffer(rtos->target, thread_list_head, param->pointer_width,
|
|
|
|
(uint8_t *)&thread_index);
|
|
|
|
bool done = false;
|
|
|
|
while (!done) {
|
|
|
|
retval = target_read_buffer(rtos->target,
|
|
|
|
thread_index + param->thread_uniqueid_offset,
|
|
|
|
2,
|
|
|
|
(uint8_t *)&id);
|
|
|
|
if (retval != ERROR_OK) {
|
2011-05-23 14:32:00 -05:00
|
|
|
LOG_OUTPUT("Error reading unique id from eCos thread\r\n");
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
if (id == thread_id) {
|
|
|
|
done = true;
|
2011-05-23 14:32:00 -05:00
|
|
|
break;
|
|
|
|
}
|
2012-01-30 09:32:53 -06:00
|
|
|
target_read_buffer(rtos->target,
|
|
|
|
thread_index + param->thread_next_offset,
|
|
|
|
param->pointer_width,
|
|
|
|
(uint8_t *) &thread_index);
|
2011-05-23 14:32:00 -05:00
|
|
|
}
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
if (done) {
|
|
|
|
/* Read the stack pointer */
|
2011-05-23 14:32:00 -05:00
|
|
|
int64_t stack_ptr = 0;
|
2012-01-30 09:32:53 -06:00
|
|
|
retval = target_read_buffer(rtos->target,
|
|
|
|
thread_index + param->thread_stack_offset,
|
|
|
|
param->pointer_width,
|
|
|
|
(uint8_t *)&stack_ptr);
|
|
|
|
if (retval != ERROR_OK) {
|
2011-05-23 14:32:00 -05:00
|
|
|
LOG_OUTPUT("Error reading stack frame from eCos thread\r\n");
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
return rtos_generic_stack_read(rtos->target,
|
|
|
|
param->stacking_info,
|
|
|
|
stack_ptr,
|
|
|
|
hex_reg_list);
|
2011-05-23 14:32:00 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
static int eCos_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
|
2011-05-23 14:32:00 -05:00
|
|
|
{
|
|
|
|
unsigned int i;
|
2012-01-30 09:32:53 -06:00
|
|
|
*symbol_list = (symbol_table_elem_t *) malloc(
|
|
|
|
sizeof(symbol_table_elem_t) * ECOS_NUM_SYMBOLS);
|
2011-05-23 14:32:00 -05:00
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
for (i = 0; i < ECOS_NUM_SYMBOLS; i++)
|
2011-05-23 14:32:00 -05:00
|
|
|
(*symbol_list)[i].symbol_name = eCos_symbol_list[i];
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
static int eCos_detect_rtos(struct target *target)
|
2011-05-23 14:32:00 -05:00
|
|
|
{
|
2012-01-30 09:32:53 -06:00
|
|
|
if ((target->rtos->symbols != NULL) &&
|
|
|
|
(target->rtos->symbols[eCos_VAL_thread_list].address != 0)) {
|
|
|
|
/* looks like eCos */
|
2011-05-23 14:32:00 -05:00
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
static int eCos_create(struct target *target)
|
2011-05-23 14:32:00 -05:00
|
|
|
{
|
|
|
|
int i = 0;
|
2012-01-30 09:32:53 -06:00
|
|
|
while ((i < ECOS_NUM_PARAMS) &&
|
|
|
|
(0 != strcmp(eCos_params_list[i].target_name, target->type->name))) {
|
2011-05-23 14:32:00 -05:00
|
|
|
i++;
|
|
|
|
}
|
2012-01-30 09:32:53 -06:00
|
|
|
if (i >= ECOS_NUM_PARAMS) {
|
2011-07-10 09:58:31 -05:00
|
|
|
LOG_OUTPUT("Could not find target in eCos compatibility list\r\n");
|
2011-05-23 14:32:00 -05:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2012-01-30 09:32:53 -06:00
|
|
|
target->rtos->rtos_specific_params = (void *) &eCos_params_list[i];
|
2011-05-23 14:32:00 -05:00
|
|
|
target->rtos->current_thread = 0;
|
|
|
|
target->rtos->thread_details = NULL;
|
|
|
|
return 0;
|
|
|
|
}
|