Add eCos/Cortex RTOS support
This commit is contained in:
Alan Bowman
Øyvind Harboe
parent
6d6837f988
commit
a57daf23db
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@ -23,7 +23,7 @@ include $(top_srcdir)/common.mk
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METASOURCES = AUTO
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METASOURCES = AUTO
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noinst_LTLIBRARIES = librtos.la
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noinst_LTLIBRARIES = librtos.la
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noinst_HEADERS = rtos.h
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noinst_HEADERS = rtos.h
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librtos_la_SOURCES = rtos.c rtos_standard_stackings.c FreeRTOS.c ThreadX.c
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librtos_la_SOURCES = rtos.c rtos_standard_stackings.c rtos_ecos_stackings.c FreeRTOS.c ThreadX.c eCos.c
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librtos_la_CFLAGS =
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librtos_la_CFLAGS =
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@ -0,0 +1,427 @@
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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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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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struct eCos_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 eCos_thread_state eCos_thread_states[] =
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{
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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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};
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#define ECOS_NUM_STATES (sizeof(eCos_thread_states)/sizeof(struct eCos_thread_state))
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struct eCos_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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unsigned char thread_uniqueid_offset;
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const struct rtos_register_stacking* stacking_info;
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};
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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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}
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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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enum eCos_symbol_values
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{
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eCos_VAL_thread_list = 0,
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eCos_VAL_current_thread_ptr = 1
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};
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static char* eCos_symbol_list[] =
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{
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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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};
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#define ECOS_NUM_SYMBOLS (sizeof(eCos_symbol_list)/sizeof(char*))
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const struct rtos_type eCos_rtos =
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{
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.name = "eCos",
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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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.get_symbol_list_to_lookup = eCos_get_symbol_list_to_lookup,
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};
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static int eCos_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 eCos_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 eCos_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 eCos\r\n");
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return -4;
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}
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if ( rtos->symbols[eCos_VAL_thread_list].address == 0 )
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{
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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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// 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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// determine the number of current threads
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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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target_read_buffer( rtos->target, thread_list_head, param->pointer_width, (uint8_t *) &thread_index );
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uint32_t first_thread = thread_index;
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do
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{
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thread_list_size++;
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retval = target_read_buffer( rtos->target, thread_index + param->thread_next_offset, param->pointer_width, (uint8_t *) &thread_index );
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} while( thread_index!=first_thread );
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// read the current thread id
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uint32_t current_thread_addr;
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retval = target_read_buffer( rtos->target, rtos->symbols[eCos_VAL_current_thread_ptr].address, 4, (uint8_t *)¤t_thread_addr);
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rtos->current_thread = 0;
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retval = target_read_buffer( rtos->target, current_thread_addr + param->thread_uniqueid_offset, 2, (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 eCos 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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// loop over all threads
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thread_index = first_thread;
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do
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{
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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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// Save the thread pointer
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uint16_t thread_id;
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retval = target_read_buffer( rtos->target, thread_index + param->thread_uniqueid_offset, 2, (uint8_t *)&thread_id);
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if ( retval != ERROR_OK )
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{
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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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// read the name pointer
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retval = target_read_buffer( rtos->target, thread_index + 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 eCos 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, ECOS_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 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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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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int64_t thread_status = 0;
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retval = target_read_buffer( rtos->target, thread_index + 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 eCos target\r\n");
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return retval;
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}
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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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}
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char * state_desc;
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if (i < ECOS_NUM_STATES)
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{
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state_desc = eCos_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_index;
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// Get the location of the next thread structure.
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thread_index = rtos->symbols[eCos_VAL_thread_list].address;
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retval = target_read_buffer( rtos->target, prev_thread_ptr + param->thread_next_offset, param->pointer_width, (uint8_t *) &thread_index );
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Error reading next thread pointer in eCos thread list\r\n");
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return retval;
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}
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}
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while( thread_index!=first_thread );
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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 eCos_get_thread_reg_list(struct rtos *rtos, int64_t thread_id, char ** hex_reg_list )
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{
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int retval;
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const struct eCos_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 eCos_params*) rtos->rtos_specific_params;
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// Find the thread with that thread id
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uint16_t id=0;
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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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target_read_buffer( rtos->target, thread_list_head, param->pointer_width, (uint8_t *) &thread_index );
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bool done=false;
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while(!done)
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{
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retval = target_read_buffer( rtos->target, thread_index + param->thread_uniqueid_offset, 2, (uint8_t*)&id);
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if ( retval != ERROR_OK )
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{
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LOG_OUTPUT("Error reading unique id from eCos thread\r\n");
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return retval;
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}
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if( id==thread_id )
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{
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done=true;
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break;
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}
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target_read_buffer( rtos->target, thread_index + param->thread_next_offset, param->pointer_width, (uint8_t *) &thread_index );
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}
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if(done)
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{
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// Read the stack pointer
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int64_t stack_ptr = 0;
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retval = target_read_buffer( rtos->target, thread_index + param->thread_stack_offset, param->pointer_width, (uint8_t*)&stack_ptr);
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||||||
|
if ( retval != ERROR_OK )
|
||||||
|
{
|
||||||
|
LOG_OUTPUT("Error reading stack frame from eCos thread\r\n");
|
||||||
|
return retval;
|
||||||
|
}
|
||||||
|
|
||||||
|
return rtos_generic_stack_read( rtos->target, param->stacking_info, stack_ptr, hex_reg_list );
|
||||||
|
}
|
||||||
|
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
static int eCos_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 ) * ECOS_NUM_SYMBOLS );
|
||||||
|
|
||||||
|
for( i = 0; i < ECOS_NUM_SYMBOLS; i++ )
|
||||||
|
{
|
||||||
|
(*symbol_list)[i].symbol_name = eCos_symbol_list[i];
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int eCos_detect_rtos( struct target* target )
|
||||||
|
{
|
||||||
|
if ( ( target->rtos->symbols != NULL ) &&
|
||||||
|
( target->rtos->symbols[eCos_VAL_thread_list].address != 0 ) )
|
||||||
|
{
|
||||||
|
// looks like eCos
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int eCos_create( struct target* target )
|
||||||
|
{
|
||||||
|
int i = 0;
|
||||||
|
while ( ( i < ECOS_NUM_PARAMS ) && ( 0 != strcmp( eCos_params_list[i].target_name, target->type->name ) ) )
|
||||||
|
{
|
||||||
|
i++;
|
||||||
|
}
|
||||||
|
if ( i >= ECOS_NUM_PARAMS )
|
||||||
|
{
|
||||||
|
LOG_OUTPUT("Could not find target in eCos compatability list\r\n");
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
target->rtos->rtos_specific_params = (void*) &eCos_params_list[i];
|
||||||
|
target->rtos->current_thread = 0;
|
||||||
|
target->rtos->thread_details = NULL;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
@ -38,11 +38,13 @@ static int str_to_hex( char* hex_dst, char* src );
|
||||||
/* RTOSs */
|
/* RTOSs */
|
||||||
extern struct rtos_type FreeRTOS_rtos;
|
extern struct rtos_type FreeRTOS_rtos;
|
||||||
extern struct rtos_type ThreadX_rtos;
|
extern struct rtos_type ThreadX_rtos;
|
||||||
|
extern struct rtos_type eCos_rtos;
|
||||||
|
|
||||||
static struct rtos_type *rtos_types[] =
|
static struct rtos_type *rtos_types[] =
|
||||||
{
|
{
|
||||||
&ThreadX_rtos,
|
&ThreadX_rtos,
|
||||||
&FreeRTOS_rtos,
|
&FreeRTOS_rtos,
|
||||||
|
&eCos_rtos,
|
||||||
NULL
|
NULL
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,63 @@
|
||||||
|
/***************************************************************************
|
||||||
|
* *
|
||||||
|
* 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 "rtos.h"
|
||||||
|
|
||||||
|
static const struct stack_register_offset rtos_eCos_Cortex_M3_stack_offsets [] =
|
||||||
|
{ { 0x0c, 32 }, // r0
|
||||||
|
{ 0x10, 32 }, // r1
|
||||||
|
{ 0x14, 32 }, // r2
|
||||||
|
{ 0x18, 32 }, // r3
|
||||||
|
{ 0x1c, 32 }, // r4
|
||||||
|
{ 0x20, 32 }, // r5
|
||||||
|
{ 0x24, 32 }, // r6
|
||||||
|
{ 0x28, 32 }, // r7
|
||||||
|
{ 0x2c, 32 }, // r8
|
||||||
|
{ 0x30, 32 }, // r9
|
||||||
|
{ 0x34, 32 }, // r10
|
||||||
|
{ 0x38, 32 }, // r11
|
||||||
|
{ 0x3c, 32 }, // r12
|
||||||
|
{ -2, 32 }, // sp
|
||||||
|
{ -1, 32 }, // lr
|
||||||
|
{ 0x40, 32 }, // pc
|
||||||
|
{ -1, 96 }, // FPA1
|
||||||
|
{ -1, 96 }, // FPA2
|
||||||
|
{ -1, 96 }, // FPA3
|
||||||
|
{ -1, 96 }, // FPA4
|
||||||
|
{ -1, 96 }, // FPA5
|
||||||
|
{ -1, 96 }, // FPA6
|
||||||
|
{ -1, 96 }, // FPA7
|
||||||
|
{ -1, 96 }, // FPA8
|
||||||
|
{ -1, 32 }, // FPS
|
||||||
|
{ -1, 32 }, // xPSR
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
const struct rtos_register_stacking rtos_eCos_Cortex_M3_stacking =
|
||||||
|
{
|
||||||
|
0x44, // stack_registers_size
|
||||||
|
-1, // stack_growth_direction
|
||||||
|
26, // num_output_registers
|
||||||
|
rtos_eCos_Cortex_M3_stack_offsets // register_offsets
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -0,0 +1,30 @@
|
||||||
|
/***************************************************************************
|
||||||
|
* *
|
||||||
|
* 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. *
|
||||||
|
***************************************************************************/
|
||||||
|
|
||||||
|
#ifndef INCLUDED_RTOS_STANDARD_STACKINGS_H_
|
||||||
|
#define INCLUDED_RTOS_STANDARD_STACKINGS_H_
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "rtos.h"
|
||||||
|
|
||||||
|
extern const struct rtos_register_stacking rtos_eCos_Cortex_M3_stacking;
|
||||||
|
|
||||||
|
#endif //ifndef INCLUDED_RTOS_STANDARD_STACKINGS_H_
|
||||||
Loading…
Reference in New Issue