rtos: add support for RIOT
Add threads support for RIOT (https://github.com/RIOT-OS/RIOT). Original code is from Daniel Krebs. Change-Id: I83fe3b91dd75949e800b5aea1015d8fa37b09c61 Signed-off-by: Daniel Krebs <github@daniel-krebs.net> Signed-off-by: Vincent Dupont <vincent@otakeys.com> Signed-off-by: Benjamin Valentin <benpicco@googlemail.com> Reviewed-on: http://openocd.zylin.com/4256 Tested-by: jenkins Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
parent
cf902f7034
commit
6a78c8581d
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@ -4637,7 +4637,8 @@ The value should normally correspond to a static mapping for the
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@item @code{-rtos} @var{rtos_type} -- enable rtos support for target,
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@var{rtos_type} can be one of @option{auto}, @option{eCos},
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@option{ThreadX}, @option{FreeRTOS}, @option{linux}, @option{ChibiOS},
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@option{embKernel}, @option{mqx}, @option{uCOS-III}, @option{nuttx}
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@option{embKernel}, @option{mqx}, @option{uCOS-III}, @option{nuttx},
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@option{RIOT}
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@xref{gdbrtossupport,,RTOS Support}.
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@item @code{-defer-examine} -- skip target examination at initial JTAG chain
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@ -10556,6 +10557,7 @@ Currently supported rtos's include:
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@item @option{mqx}
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@item @option{uCOS-III}
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@item @option{nuttx}
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@item @option{RIOT}
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@item @option{hwthread} (This is not an actual RTOS. @xref{usingopenocdsmpwithgdb,,Using OpenOCD SMP with GDB}.)
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@end itemize
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@ -10592,6 +10594,8 @@ _mqx_kernel_data, MQX_init_struct.
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OSRunning, OSTCBCurPtr, OSTaskDbgListPtr, OSTaskQty
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@item nuttx symbols
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g_readytorun, g_tasklisttable
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@item RIOT symbols
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sched_threads, sched_num_threads, sched_active_pid, max_threads, _tcb_name_offset
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@end table
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For most RTOS supported the above symbols will be exported by default. However for
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@ -7,6 +7,7 @@ noinst_LTLIBRARIES += %D%/librtos.la
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%D%/rtos_embkernel_stackings.c \
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%D%/rtos_mqx_stackings.c \
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%D%/rtos_ucos_iii_stackings.c \
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%D%/rtos_riot_stackings.c \
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%D%/FreeRTOS.c \
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%D%/ThreadX.c \
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%D%/eCos.c \
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@ -18,6 +19,7 @@ noinst_LTLIBRARIES += %D%/librtos.la
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%D%/uCOS-III.c \
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%D%/nuttx.c \
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%D%/hwthread.c \
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%D%/riot.c \
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%D%/rtos.h \
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%D%/rtos_standard_stackings.h \
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%D%/rtos_ecos_stackings.h \
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@ -25,6 +27,7 @@ noinst_LTLIBRARIES += %D%/librtos.la
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%D%/rtos_chibios_stackings.h \
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%D%/rtos_embkernel_stackings.h \
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%D%/rtos_mqx_stackings.h \
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%D%/rtos_riot_stackings.h \
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%D%/rtos_ucos_iii_stackings.h \
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%D%/nuttx_header.h
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@ -0,0 +1,428 @@
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/***************************************************************************
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* Copyright (C) 2015 by Daniel Krebs *
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* Daniel Krebs - github@daniel-krebs.net *
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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, see <http://www.gnu.org/licenses/>. *
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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 "helper/types.h"
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#include "target/armv7m.h"
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#include "rtos_riot_stackings.h"
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static bool riot_detect_rtos(struct target *target);
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static int riot_create(struct target *target);
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static int riot_update_threads(struct rtos *rtos);
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static int riot_get_thread_reg_list(struct rtos *rtos, int64_t thread_id,
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struct rtos_reg **reg_list, int *num_regs);
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static int riot_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[]);
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struct riot_thread_state {
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int value;
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const char *desc;
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};
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/* refer RIOT sched.h */
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static const struct riot_thread_state riot_thread_states[] = {
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{ 0, "Stopped" },
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{ 1, "Zombie" },
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{ 2, "Sleeping" },
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{ 3, "Blocked mutex" },
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{ 4, "Blocked receive" },
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{ 5, "Blocked send" },
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{ 6, "Blocked reply" },
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{ 7, "Blocked any flag" },
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{ 8, "Blocked all flags" },
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{ 9, "Blocked mbox" },
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{ 10, "Blocked condition" },
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{ 11, "Running" },
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{ 12, "Pending" },
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};
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#define RIOT_NUM_STATES ARRAY_SIZE(riot_thread_states)
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struct riot_params {
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const char *target_name;
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unsigned char thread_sp_offset;
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unsigned char thread_status_offset;
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};
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static const struct riot_params riot_params_list[] = {
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{
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"cortex_m", /* target_name */
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0x00, /* thread_sp_offset */
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0x04, /* thread_status_offset */
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},
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{ /* STLink */
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"hla_target", /* target_name */
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0x00, /* thread_sp_offset */
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0x04, /* thread_status_offset */
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}
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};
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#define RIOT_NUM_PARAMS ARRAY_SIZE(riot_params_list)
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/* Initialize in riot_create() depending on architecture */
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static const struct rtos_register_stacking *stacking_info;
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enum riot_symbol_values {
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RIOT_THREADS_BASE = 0,
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RIOT_NUM_THREADS,
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RIOT_ACTIVE_PID,
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RIOT_MAX_THREADS,
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RIOT_NAME_OFFSET,
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};
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/* refer RIOT core/sched.c */
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static const char *const riot_symbol_list[] = {
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"sched_threads",
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"sched_num_threads",
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"sched_active_pid",
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"max_threads",
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"_tcb_name_offset",
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NULL
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};
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/* Define which symbols are not mandatory */
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static const enum riot_symbol_values riot_optional_symbols[] = {
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RIOT_NAME_OFFSET,
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};
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const struct rtos_type riot_rtos = {
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.name = "RIOT",
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.detect_rtos = riot_detect_rtos,
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.create = riot_create,
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.update_threads = riot_update_threads,
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.get_thread_reg_list = riot_get_thread_reg_list,
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.get_symbol_list_to_lookup = riot_get_symbol_list_to_lookup,
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};
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static int riot_update_threads(struct rtos *rtos)
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{
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int retval;
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unsigned int tasks_found = 0;
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const struct riot_params *param;
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if (rtos == NULL)
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return ERROR_FAIL;
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if (rtos->rtos_specific_params == NULL)
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return ERROR_FAIL;
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param = (const struct riot_params *)rtos->rtos_specific_params;
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if (rtos->symbols == NULL) {
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LOG_ERROR("No symbols for RIOT");
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return ERROR_FAIL;
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}
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if (rtos->symbols[RIOT_THREADS_BASE].address == 0) {
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LOG_ERROR("Can't find symbol `%s`",
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riot_symbol_list[RIOT_THREADS_BASE]);
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return ERROR_FAIL;
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}
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/* wipe out previous thread details if any */
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rtos_free_threadlist(rtos);
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/* Reset values */
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rtos->current_thread = 0;
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rtos->thread_count = 0;
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/* read the current thread id */
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int16_t active_pid = 0;
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retval = target_read_u16(rtos->target,
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rtos->symbols[RIOT_ACTIVE_PID].address,
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(uint16_t *)&active_pid);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't read symbol `%s`",
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riot_symbol_list[RIOT_ACTIVE_PID]);
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return retval;
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}
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rtos->current_thread = active_pid;
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/* read the current thread count
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* It's `int` in RIOT, but this is Cortex M* only anyway */
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int32_t thread_count = 0;
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retval = target_read_u16(rtos->target,
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rtos->symbols[RIOT_NUM_THREADS].address,
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(uint16_t *)&thread_count);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't read symbol `%s`",
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riot_symbol_list[RIOT_NUM_THREADS]);
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return retval;
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}
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rtos->thread_count = thread_count;
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/* read the maximum number of threads */
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uint8_t max_threads = 0;
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retval = target_read_u8(rtos->target,
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rtos->symbols[RIOT_MAX_THREADS].address,
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&max_threads);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't read symbol `%s`",
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riot_symbol_list[RIOT_MAX_THREADS]);
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return retval;
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}
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/* Base address of thread array */
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uint32_t threads_base = rtos->symbols[RIOT_THREADS_BASE].address;
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/* Try to get the offset of tcb_t::name, if absent RIOT wasn't compiled
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* with DEVELHELP, so there are no thread names */
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uint8_t name_offset = 0;
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if (rtos->symbols[RIOT_NAME_OFFSET].address != 0) {
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retval = target_read_u8(rtos->target,
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rtos->symbols[RIOT_NAME_OFFSET].address,
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&name_offset);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't read symbol `%s`",
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riot_symbol_list[RIOT_NAME_OFFSET]);
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return retval;
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}
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}
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/* Allocate memory for thread description */
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rtos->thread_details = calloc(thread_count, sizeof(struct thread_detail));
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if (rtos->thread_details == NULL) {
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LOG_ERROR("RIOT: out of memory");
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return ERROR_FAIL;
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}
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/* Buffer for thread names, maximum to display is 32 */
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char buffer[32];
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for (unsigned int i = 0; i < max_threads; i++) {
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/* get pointer to tcb_t */
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uint32_t tcb_pointer = 0;
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retval = target_read_u32(rtos->target,
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threads_base + (i * 4),
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&tcb_pointer);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't parse `%s`", riot_symbol_list[RIOT_THREADS_BASE]);
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goto error;
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}
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if (tcb_pointer == 0) {
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/* PID unused */
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continue;
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}
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/* Index is PID */
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rtos->thread_details[tasks_found].threadid = i;
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/* read thread state */
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uint8_t status = 0;
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retval = target_read_u8(rtos->target,
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tcb_pointer + param->thread_status_offset,
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&status);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't parse `%s`", riot_symbol_list[RIOT_THREADS_BASE]);
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goto error;
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}
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/* Search for state */
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unsigned int k;
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for (k = 0; k < RIOT_NUM_STATES; k++) {
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if (riot_thread_states[k].value == status)
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break;
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}
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/* Copy state string */
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if (k >= RIOT_NUM_STATES) {
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rtos->thread_details[tasks_found].extra_info_str =
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strdup("unknown state");
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} else {
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rtos->thread_details[tasks_found].extra_info_str =
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strdup(riot_thread_states[k].desc);
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}
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if (rtos->thread_details[tasks_found].extra_info_str == NULL) {
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LOG_ERROR("RIOT: out of memory");
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retval = ERROR_FAIL;
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goto error;
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}
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/* Thread names are only available if compiled with DEVELHELP */
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if (name_offset != 0) {
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uint32_t name_pointer = 0;
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retval = target_read_u32(rtos->target,
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tcb_pointer + name_offset,
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&name_pointer);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't parse `%s`",
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riot_symbol_list[RIOT_THREADS_BASE]);
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goto error;
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}
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/* read thread name */
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retval = target_read_buffer(rtos->target,
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name_pointer,
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sizeof(buffer),
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(uint8_t *)&buffer);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't parse `%s`",
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riot_symbol_list[RIOT_THREADS_BASE]);
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goto error;
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}
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/* Make sure the string in the buffer terminates */
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if (buffer[sizeof(buffer) - 1] != 0)
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buffer[sizeof(buffer) - 1] = 0;
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/* Copy thread name */
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rtos->thread_details[tasks_found].thread_name_str =
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strdup(buffer);
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} else {
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rtos->thread_details[tasks_found].thread_name_str =
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strdup("Enable DEVELHELP to see task names");
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}
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if (rtos->thread_details[tasks_found].thread_name_str == NULL) {
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LOG_ERROR("RIOT: out of memory");
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retval = ERROR_FAIL;
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goto error;
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}
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rtos->thread_details[tasks_found].exists = true;
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tasks_found++;
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}
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return ERROR_OK;
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error:
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rtos_free_threadlist(rtos);
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return retval;
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}
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static int riot_get_thread_reg_list(struct rtos *rtos, int64_t thread_id,
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struct rtos_reg **reg_list, int *num_regs)
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{
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int retval;
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const struct riot_params *param;
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if (rtos == NULL)
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return ERROR_FAIL;
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if (thread_id == 0)
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return ERROR_FAIL;
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if (rtos->rtos_specific_params == NULL)
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return ERROR_FAIL;
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param = (const struct riot_params *)rtos->rtos_specific_params;
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/* find the thread with given thread id */
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uint32_t threads_base = rtos->symbols[RIOT_THREADS_BASE].address;
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uint32_t tcb_pointer = 0;
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retval = target_read_u32(rtos->target,
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threads_base + (thread_id * 4),
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&tcb_pointer);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't parse `%s`", riot_symbol_list[RIOT_THREADS_BASE]);
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return retval;
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}
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/* read stack pointer for that thread */
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uint32_t stackptr = 0;
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retval = target_read_u32(rtos->target,
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tcb_pointer + param->thread_sp_offset,
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&stackptr);
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if (retval != ERROR_OK) {
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LOG_ERROR("Can't parse `%s`", riot_symbol_list[RIOT_THREADS_BASE]);
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return retval;
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}
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return rtos_generic_stack_read(rtos->target,
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stacking_info,
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stackptr,
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reg_list,
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num_regs);
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}
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static int riot_get_symbol_list_to_lookup(symbol_table_elem_t *symbol_list[])
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{
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*symbol_list = calloc(ARRAY_SIZE(riot_symbol_list), sizeof(symbol_table_elem_t));
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if (*symbol_list == NULL) {
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LOG_ERROR("RIOT: out of memory");
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return ERROR_FAIL;
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}
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for (unsigned int i = 0; i < ARRAY_SIZE(riot_symbol_list); i++) {
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(*symbol_list)[i].symbol_name = riot_symbol_list[i];
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(*symbol_list)[i].optional = false;
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/* Lookup if symbol is optional */
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for (unsigned int k = 0; k < sizeof(riot_optional_symbols); k++) {
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if (i == riot_optional_symbols[k]) {
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(*symbol_list)[i].optional = true;
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break;
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}
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}
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}
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return ERROR_OK;
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}
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static bool riot_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[RIOT_THREADS_BASE].address != 0)) {
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/* looks like RIOT */
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return true;
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}
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return false;
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}
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static int riot_create(struct target *target)
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{
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unsigned int i = 0;
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/* lookup if target is supported by RIOT */
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while ((i < RIOT_NUM_PARAMS) &&
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(0 != strcmp(riot_params_list[i].target_name, target->type->name))) {
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i++;
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}
|
||||
if (i >= RIOT_NUM_PARAMS) {
|
||||
LOG_ERROR("Could not find target in RIOT compatibility list");
|
||||
return ERROR_FAIL;
|
||||
}
|
||||
|
||||
target->rtos->rtos_specific_params = (void *)&riot_params_list[i];
|
||||
target->rtos->current_thread = 0;
|
||||
target->rtos->thread_details = NULL;
|
||||
|
||||
/* Stacking is different depending on architecture */
|
||||
struct armv7m_common *armv7m_target = target_to_armv7m(target);
|
||||
|
||||
if (armv7m_target->arm.is_armv6m)
|
||||
stacking_info = &rtos_riot_cortex_m0_stacking;
|
||||
else if (is_armv7m(armv7m_target))
|
||||
stacking_info = &rtos_riot_cortex_m34_stacking;
|
||||
else {
|
||||
LOG_ERROR("No stacking info for architecture");
|
||||
return ERROR_FAIL;
|
||||
}
|
||||
return ERROR_OK;
|
||||
}
|
|
@ -38,6 +38,7 @@ extern struct rtos_type mqx_rtos;
|
|||
extern struct rtos_type uCOS_III_rtos;
|
||||
extern struct rtos_type nuttx_rtos;
|
||||
extern struct rtos_type hwthread_rtos;
|
||||
extern struct rtos_type riot_rtos;
|
||||
|
||||
static struct rtos_type *rtos_types[] = {
|
||||
&ThreadX_rtos,
|
||||
|
@ -50,6 +51,8 @@ static struct rtos_type *rtos_types[] = {
|
|||
&mqx_rtos,
|
||||
&uCOS_III_rtos,
|
||||
&nuttx_rtos,
|
||||
&riot_rtos,
|
||||
/* keep this as last, as it always matches with rtos auto */
|
||||
&hwthread_rtos,
|
||||
NULL
|
||||
};
|
||||
|
|
|
@ -0,0 +1,95 @@
|
|||
/***************************************************************************
|
||||
* Copyright (C) 2015 by Daniel Krebs *
|
||||
* Daniel Krebs - github@daniel-krebs.net *
|
||||
* *
|
||||
* 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, see <http://www.gnu.org/licenses/>. *
|
||||
***************************************************************************/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#include "rtos.h"
|
||||
#include "target/armv7m.h"
|
||||
#include "rtos_standard_stackings.h"
|
||||
|
||||
/* This works for the M0 and M34 stackings as xPSR is in a fixed
|
||||
* location
|
||||
*/
|
||||
static int64_t rtos_riot_cortex_m_stack_align(struct target *target,
|
||||
const uint8_t *stack_data, const struct rtos_register_stacking *stacking,
|
||||
int64_t stack_ptr)
|
||||
{
|
||||
const int XPSR_OFFSET = 0x40;
|
||||
return rtos_Cortex_M_stack_align(target, stack_data, stacking,
|
||||
stack_ptr, XPSR_OFFSET);
|
||||
}
|
||||
|
||||
/* see thread_arch.c */
|
||||
static const struct stack_register_offset rtos_riot_cortex_m0_stack_offsets[ARMV7M_NUM_CORE_REGS] = {
|
||||
{ ARMV7M_R0, 0x24, 32 }, /* r0 */
|
||||
{ ARMV7M_R1, 0x28, 32 }, /* r1 */
|
||||
{ ARMV7M_R2, 0x2c, 32 }, /* r2 */
|
||||
{ ARMV7M_R3, 0x30, 32 }, /* r3 */
|
||||
{ ARMV7M_R4, 0x14, 32 }, /* r4 */
|
||||
{ ARMV7M_R5, 0x18, 32 }, /* r5 */
|
||||
{ ARMV7M_R6, 0x1c, 32 }, /* r6 */
|
||||
{ ARMV7M_R7, 0x20, 32 }, /* r7 */
|
||||
{ ARMV7M_R8, 0x04, 32 }, /* r8 */
|
||||
{ ARMV7M_R9, 0x08, 32 }, /* r9 */
|
||||
{ ARMV7M_R10, 0x0c, 32 }, /* r10 */
|
||||
{ ARMV7M_R11, 0x10, 32 }, /* r11 */
|
||||
{ ARMV7M_R12, 0x34, 32 }, /* r12 */
|
||||
{ ARMV7M_R13, -2, 32 }, /* sp */
|
||||
{ ARMV7M_R14, 0x38, 32 }, /* lr */
|
||||
{ ARMV7M_PC, 0x3c, 32 }, /* pc */
|
||||
{ ARMV7M_xPSR, 0x40, 32 }, /* xPSR */
|
||||
};
|
||||
|
||||
const struct rtos_register_stacking rtos_riot_cortex_m0_stacking = {
|
||||
0x44, /* stack_registers_size */
|
||||
-1, /* stack_growth_direction */
|
||||
ARMV7M_NUM_CORE_REGS, /* num_output_registers */
|
||||
rtos_riot_cortex_m_stack_align, /* stack_alignment */
|
||||
rtos_riot_cortex_m0_stack_offsets /* register_offsets */
|
||||
};
|
||||
|
||||
/* see thread_arch.c */
|
||||
static const struct stack_register_offset rtos_riot_cortex_m34_stack_offsets[ARMV7M_NUM_CORE_REGS] = {
|
||||
{ ARMV7M_R0, 0x24, 32 }, /* r0 */
|
||||
{ ARMV7M_R1, 0x28, 32 }, /* r1 */
|
||||
{ ARMV7M_R2, 0x2c, 32 }, /* r2 */
|
||||
{ ARMV7M_R3, 0x30, 32 }, /* r3 */
|
||||
{ ARMV7M_R4, 0x04, 32 }, /* r4 */
|
||||
{ ARMV7M_R5, 0x08, 32 }, /* r5 */
|
||||
{ ARMV7M_R6, 0x0c, 32 }, /* r6 */
|
||||
{ ARMV7M_R7, 0x10, 32 }, /* r7 */
|
||||
{ ARMV7M_R8, 0x14, 32 }, /* r8 */
|
||||
{ ARMV7M_R9, 0x18, 32 }, /* r9 */
|
||||
{ ARMV7M_R10, 0x1c, 32 }, /* r10 */
|
||||
{ ARMV7M_R11, 0x20, 32 }, /* r11 */
|
||||
{ ARMV7M_R12, 0x34, 32 }, /* r12 */
|
||||
{ ARMV7M_R13, -2, 32 }, /* sp */
|
||||
{ ARMV7M_R14, 0x38, 32 }, /* lr */
|
||||
{ ARMV7M_PC, 0x3c, 32 }, /* pc */
|
||||
{ ARMV7M_xPSR, 0x40, 32 }, /* xPSR */
|
||||
};
|
||||
|
||||
const struct rtos_register_stacking rtos_riot_cortex_m34_stacking = {
|
||||
0x44, /* stack_registers_size */
|
||||
-1, /* stack_growth_direction */
|
||||
ARMV7M_NUM_CORE_REGS, /* num_output_registers */
|
||||
rtos_riot_cortex_m_stack_align, /* stack_alignment */
|
||||
rtos_riot_cortex_m34_stack_offsets /* register_offsets */
|
||||
};
|
|
@ -0,0 +1,32 @@
|
|||
/***************************************************************************
|
||||
* Copyright (C) 2015 by Daniel Krebs *
|
||||
* Daniel Krebs - github@daniel-krebs.net *
|
||||
* *
|
||||
* 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, see <http://www.gnu.org/licenses/>. *
|
||||
***************************************************************************/
|
||||
|
||||
#ifndef OPENOCD_RTOS_RTOS_RIOT_STACKINGS_H
|
||||
#define OPENOCD_RTOS_RTOS_RIOT_STACKINGS_H
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#include "rtos.h"
|
||||
|
||||
extern const struct rtos_register_stacking rtos_riot_cortex_m0_stacking;
|
||||
extern const struct rtos_register_stacking rtos_riot_cortex_m34_stacking;
|
||||
|
||||
#endif /* OPENOCD_RTOS_RTOS_RIOT_STACKINGS_H */
|
||||
|
Loading…
Reference in New Issue