--- /dev/null
+/***************************************************************************
+ * Copyright (C) 2011 by STEricsson *
+ * Heythem Bouhaja heythem.bouhaja@stericsson.com : creation *
+ * Michel JAOUEN michel.jaouen@stericsson.com : adaptation to rtos *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <helper/time_support.h>
+#include <jtag/jtag.h>
+#include "target/target.h"
+#include "target/target_type.h"
+#include "helper/log.h"
+#include "rtos.h"
+#include "helper/log.h"
+#include "rtos_standard_stackings.h"
+#include <target/register.h>
+#include "server/gdb_server.h"
+
+#define LINUX_USER_KERNEL_BORDER 0xc0000000
+#include "linux_header.h"
+#define PHYS
+#define MAX_THREADS 200
+/* specific task */
+struct linux_os {
+ char *name;
+ uint32_t init_task_addr;
+ int thread_count;
+ int threadid_count;
+ int preupdtate_threadid_count;
+ int nr_cpus;
+ int threads_lookup;
+ int threads_needs_update;
+ struct current_thread *current_threads;
+ struct threads *thread_list;
+ /* virt2phys parameter */
+ uint32_t phys_mask;
+ uint32_t phys_base;
+};
+
+struct current_thread {
+ int64_t threadid;
+ int32_t core_id;
+#ifdef PID_CHECK
+ uint32_t pid;
+#endif
+ uint32_t TS;
+ struct current_thread *next;
+};
+
+struct threads {
+ char name[17];
+ uint32_t base_addr; /* address to read magic */
+ uint32_t state; /* magic value : filled only at creation */
+ uint32_t pid; /* linux pid : id for identifying a thread */
+ uint32_t oncpu; /* content cpu number in current thread */
+ uint32_t asid; /* filled only at creation */
+ int64_t threadid;
+ int status; /* dead = 1 alive = 2 current = 3 alive and current */
+ /* value that should not change during the live of a thread ? */
+ uint32_t thread_info_addr; /* contain latest thread_info_addr computed */
+ /* retrieve from thread_info */
+ struct cpu_context *context;
+ struct threads *next;
+};
+
+struct cpu_context {
+ uint32_t R4;
+ uint32_t R5;
+ uint32_t R6;
+ uint32_t R7;
+ uint32_t R8;
+ uint32_t R9;
+ uint32_t IP;
+ uint32_t FP;
+ uint32_t SP;
+ uint32_t PC;
+ uint32_t preempt_count;
+};
+struct cpu_context *cpu_context_read(struct target *target, uint32_t base_addr,
+ uint32_t *info_addr);
+static int insert_into_threadlist(struct target *target, struct threads *t);
+
+static int linux_os_create(struct target *target);
+
+static int linux_os_dummy_update(struct rtos *rtos)
+{
+ /* update is done only when thread request come */
+ /* too many thread to do it on each stop */
+ return 0;
+}
+
+static int linux_compute_virt2phys(struct target *target, uint32_t address)
+{
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ uint32_t pa = 0;
+ int retval = target->type->virt2phys(target, address, &pa);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Cannot compute linux virt2phys translation");
+ /* fixes default address */
+ linux_os->phys_base = 0;
+ return ERROR_FAIL;
+ }
+
+ linux_os->init_task_addr = address;
+ address = address & linux_os->phys_mask;
+ linux_os->phys_base = pa - address;
+ return ERROR_OK;
+}
+
+static int linux_read_memory(struct target *target,
+ uint32_t address, uint32_t size, uint32_t count,
+ uint8_t *buffer)
+{
+#ifdef PHYS
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ uint32_t pa = (address & linux_os->phys_mask) + linux_os->phys_base;
+#endif
+ if (address < 0xc000000) {
+ LOG_ERROR("linux awareness : address in user space");
+ return ERROR_FAIL;
+ }
+#ifdef PHYS
+ target->type->read_phys_memory(target, pa, size, count, buffer);
+#endif
+ target->type->read_memory(target, address, size, count, buffer);
+ return ERROR_OK;
+}
+
+static char *reg_converter(char *buffer, void *reg, int size)
+{
+ int i;
+
+ for (i = 0; i < size; i++)
+ buffer += sprintf(buffer, "%02x", ((uint8_t *) reg)[i]);
+
+ return buffer;
+}
+
+int fill_buffer(struct target *target, uint32_t addr, uint8_t * buffer)
+{
+
+ if ((addr & 0xfffffffc) != addr)
+ LOG_INFO("unaligned address %x!!", addr);
+
+ int retval = linux_read_memory(target, addr, 4, 1, buffer);
+ return retval;
+
+}
+
+uint32_t get_buffer(struct target *target, const uint8_t *buffer)
+{
+ uint32_t value = 0;
+ const uint8_t *value_ptr = buffer;
+ value = target_buffer_get_u32(target, value_ptr);
+ return value;
+}
+
+static int linux_os_thread_reg_list(struct rtos *rtos,
+ int64_t thread_id, char **hex_reg_list)
+{
+ struct target *target = rtos->target;
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ int i = 0;
+ struct current_thread *tmp = linux_os->current_threads;
+ struct current_thread *next;
+ char *hex_string;
+ int found = 0;
+ int retval;
+ /* check if a current thread is requested */
+ next = tmp;
+
+ do {
+ if (next->threadid == thread_id)
+ found = 1;
+ else
+ next = next->next;
+ } while ((found == 0) && (next != tmp) && (next != NULL));
+
+ if (found == 1) {
+ /* search target to perfom the access */
+ struct reg **reg_list;
+ int reg_list_size, reg_packet_size = 0;
+ struct target_list *head;
+ head = target->head;
+ found = 0;
+ do {
+ if (head->target->coreid == next->core_id) {
+
+ target = head->target;
+ found = 1;
+ } else
+ head = head->next;
+
+ } while ((head != (struct target_list *)NULL) && (found == 0));
+
+ if (found == 0) {
+ LOG_ERROR
+ ("current thread %" PRIx64": no target to perform access of core id %x",
+ thread_id, next->core_id);
+ return ERROR_FAIL;
+ }
+
+ /*LOG_INFO("thread %lx current on core %x",thread_id,
+ * target->coreid);*/
+ retval =
+ target_get_gdb_reg_list(target, ®_list, ®_list_size);
+
+ if (retval != ERROR_OK)
+ return retval;
+
+ for (i = 0; i < reg_list_size; i++)
+ reg_packet_size += reg_list[i]->size;
+
+ *hex_reg_list = malloc(DIV_ROUND_UP(reg_packet_size, 8) * 2);
+
+ hex_string = *hex_reg_list;
+
+ for (i = 0; i < reg_list_size; i++) {
+ if (!reg_list[i]->valid)
+ reg_list[i]->type->get(reg_list[i]);
+
+ hex_string = reg_converter(hex_string,
+ reg_list[i]->value,
+ (reg_list[i]->size) / 8);
+ }
+
+ free(reg_list);
+
+ } else {
+ struct threads *temp = linux_os->thread_list;
+ *hex_reg_list = (char *)calloc(1, 500 * sizeof(char));
+ hex_string = *hex_reg_list;
+
+ for (i = 0; i < 16; i++)
+ hex_string += sprintf(hex_string, "%02x", 0);
+
+ while ((temp != NULL) &&
+ (temp->threadid != target->rtos->current_threadid))
+ temp = temp->next;
+
+ if (temp != NULL) {
+ if (temp->context == NULL)
+ temp->context = cpu_context_read(target,
+ temp->
+ base_addr,
+ &temp->
+ thread_info_addr);
+
+ hex_string =
+ reg_converter(hex_string, &temp->context->R4, 4);
+ hex_string =
+ reg_converter(hex_string, &temp->context->R5, 4);
+ hex_string =
+ reg_converter(hex_string, &temp->context->R6, 4);
+ hex_string =
+ reg_converter(hex_string, &temp->context->R7, 4);
+ hex_string =
+ reg_converter(hex_string, &temp->context->R8, 4);
+ hex_string =
+ reg_converter(hex_string, &temp->context->R9, 4);
+
+ for (i = 0; i < 4; i++) /*R10 = 0x0 */
+ hex_string += sprintf(hex_string, "%02x", 0);
+
+ hex_string =
+ reg_converter(hex_string, &temp->context->FP, 4);
+ hex_string =
+ reg_converter(hex_string, &temp->context->IP, 4);
+ hex_string =
+ reg_converter(hex_string, &temp->context->SP, 4);
+
+ for (i = 0; i < 4; i++)
+ hex_string += sprintf(hex_string, "%02x", 0);
+
+ hex_string =
+ reg_converter(hex_string, &temp->context->PC, 4);
+
+ for (i = 0; i < 100; i++) { /*100 */
+ hex_string += sprintf(hex_string, "%02x", 0);
+ }
+
+ uint32_t cpsr = 0x00000000;
+ hex_string = reg_converter(hex_string, &cpsr, 4);
+ }
+ }
+ return ERROR_OK;
+}
+
+static int linux_os_detect(struct target *target)
+{
+ LOG_INFO("should no be called");
+ return 0;
+}
+
+static int linux_os_smp_init(struct target *target);
+static int linux_os_clean(struct target *target);
+#define INIT_TASK 0
+static char *linux_symbol_list[] = {
+ "init_task",
+ NULL
+};
+
+static int linux_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) / sizeof(char *));
+
+ for (i = 0; i < sizeof(linux_symbol_list) / sizeof(char *); i++)
+ (*symbol_list)[i].symbol_name = linux_symbol_list[i];
+
+ return 0;
+}
+
+static char *linux_ps_command(struct target *target);
+
+const struct rtos_type Linux_os = {
+ .name = "linux",
+ .detect_rtos = linux_os_detect,
+ .create = linux_os_create,
+ .smp_init = linux_os_smp_init,
+ .update_threads = linux_os_dummy_update,
+ .get_thread_reg_list = linux_os_thread_reg_list,
+ .get_symbol_list_to_lookup = linux_get_symbol_list_to_lookup,
+ .clean = linux_os_clean,
+ .ps_command = linux_ps_command,
+};
+
+static int linux_thread_packet(struct connection *connection, char *packet,
+ int packet_size);
+static void linux_identify_current_threads(struct target *target);
+
+#ifdef PID_CHECK
+int fill_task_pid(struct target *target, struct threads *t)
+{
+ uint32_t pid_addr = t->base_addr + PID;
+ uint8_t buffer[4];
+ int retval = fill_buffer(target, pid_addr, buffer);
+
+ if (retval == ERROR_OK) {
+ uint32_t val = get_buffer(target, buffer);
+ t->pid = val;
+ } else
+ LOG_ERROR("fill_task_pid: unable to read memory");
+
+ return retval;
+}
+#endif
+
+int fill_task(struct target *target, struct threads *t)
+{
+
+ int retval;
+ uint32_t pid_addr = t->base_addr + PID;
+ uint32_t mem_addr = t->base_addr + MEM;
+ uint32_t on_cpu = t->base_addr + ONCPU;
+ uint8_t *buffer = calloc(1, 4);
+ retval = fill_buffer(target, t->base_addr, buffer);
+
+ if (retval == ERROR_OK) {
+ uint32_t val = get_buffer(target, buffer);
+ t->state = val;
+ } else
+ LOG_ERROR("fill_task: unable to read memory");
+
+ retval = fill_buffer(target, pid_addr, buffer);
+
+ if (retval == ERROR_OK) {
+ uint32_t val = get_buffer(target, buffer);
+ t->pid = val;
+ } else
+ LOG_ERROR("fill task: unable to read memory");
+
+ retval = fill_buffer(target, on_cpu, buffer);
+
+ if (retval == ERROR_OK) {
+ uint32_t val = get_buffer(target, buffer);
+ t->oncpu = val;
+ } else
+ LOG_ERROR("fill task: unable to read memory");
+
+ retval = fill_buffer(target, mem_addr, buffer);
+
+ if (retval == ERROR_OK) {
+ uint32_t val = get_buffer(target, buffer);
+
+ if (val != 0) {
+ uint32_t asid_addr = val + MM_CTX;
+ retval = fill_buffer(target, asid_addr, buffer);
+
+ if (retval == ERROR_OK) {
+ val = get_buffer(target, buffer);
+ t->asid = val;
+ } else
+ LOG_ERROR
+ ("fill task: unable to read memory -- ASID");
+ } else {
+ t->asid = 0;
+ }
+ } else
+ LOG_ERROR("fill task: unable to read memory");
+
+ return retval;
+}
+
+int get_name(struct target *target, struct threads *t)
+{
+ int retval;
+ uint32_t full_name[4];
+ uint32_t comm = t->base_addr + COMM;
+ int i;
+
+ for (i = 0; i < 17; i++)
+ t->name[i] = 0;
+
+ retval = linux_read_memory(target, comm, 4, 4, (uint8_t *) full_name);
+
+ if (retval != ERROR_OK) {
+ LOG_ERROR("get_name: unable to read memory\n");
+ return ERROR_FAIL;
+ }
+
+ uint32_t raw_name = target_buffer_get_u32(target,
+ (const uint8_t *)
+ &full_name[0]);
+ t->name[3] = raw_name >> 24;
+ t->name[2] = raw_name >> 16;
+ t->name[1] = raw_name >> 8;
+ t->name[0] = raw_name;
+ raw_name =
+ target_buffer_get_u32(target, (const uint8_t *)&full_name[1]);
+ t->name[7] = raw_name >> 24;
+ t->name[6] = raw_name >> 16;
+ t->name[5] = raw_name >> 8;
+ t->name[4] = raw_name;
+ raw_name =
+ target_buffer_get_u32(target, (const uint8_t *)&full_name[2]);
+ t->name[11] = raw_name >> 24;
+ t->name[10] = raw_name >> 16;
+ t->name[9] = raw_name >> 8;
+ t->name[8] = raw_name;
+ raw_name =
+ target_buffer_get_u32(target, (const uint8_t *)&full_name[3]);
+ t->name[15] = raw_name >> 24;
+ t->name[14] = raw_name >> 16;
+ t->name[13] = raw_name >> 8;
+ t->name[12] = raw_name;
+ return ERROR_OK;
+
+}
+
+int get_current(struct target *target, int create)
+{
+ struct target_list *head;
+ head = target->head;
+ uint8_t *buf;
+ uint32_t val;
+ uint32_t ti_addr;
+ uint8_t *buffer = calloc(1, 4);
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ struct current_thread *ctt = linux_os->current_threads;
+
+ /* invalid current threads content */
+ while (ctt != NULL) {
+ ctt->threadid = -1;
+ ctt->TS = 0xdeadbeef;
+ ctt = ctt->next;
+ }
+
+ while (head != (struct target_list *)NULL) {
+ struct reg **reg_list;
+ int reg_list_size;
+ int retval;
+
+ if (target_get_gdb_reg_list(head->target, ®_list,
+ ®_list_size) !=
+ ERROR_OK)
+ return ERROR_TARGET_FAILURE;
+
+ if (!reg_list[13]->valid)
+ reg_list[13]->type->get(reg_list[13]);
+
+ buf = reg_list[13]->value;
+ val = get_buffer(target, buf);
+ ti_addr = (val & 0xffffe000);
+ uint32_t TS_addr = ti_addr + 0xc;
+ retval = fill_buffer(target, TS_addr, buffer);
+
+ if (retval == ERROR_OK) {
+ uint32_t TS = get_buffer(target, buffer);
+ uint32_t cpu, on_cpu = TS + ONCPU;
+ retval = fill_buffer(target, on_cpu, buffer);
+
+ if (retval == ERROR_OK) {
+ /*uint32_t cpu = get_buffer(target, buffer);*/
+ struct current_thread *ct =
+ linux_os->current_threads;
+ cpu = head->target->coreid;
+
+ while ((ct != NULL)
+ && (ct->core_id != (int32_t) cpu)) {
+ ct = ct->next;
+ }
+
+ if ((ct != NULL) && (ct->TS == 0xdeadbeef))
+ ct->TS = TS;
+ else
+ LOG_ERROR
+ ("error in linux current thread update");
+
+ if (create) {
+ struct threads *t;
+ t = calloc(1, sizeof(struct threads));
+ t->base_addr = ct->TS;
+ fill_task(target, t);
+ get_name(target, t);
+ t->oncpu = cpu;
+ insert_into_threadlist(target, t);
+ t->status = 3;
+ t->thread_info_addr = 0xdeadbeef;
+ ct->threadid = t->threadid;
+ linux_os->thread_count++;
+#ifdef PID_CHECK
+ ct->pid = t->pid;
+#endif
+ /*LOG_INFO("Creation of current thread %s",t->name);*/
+ }
+ }
+ }
+
+ free(reg_list);
+ head = head->next;
+ }
+
+ return ERROR_OK;
+}
+
+struct cpu_context *cpu_context_read(struct target *target, uint32_t base_addr,
+ uint32_t *thread_info_addr_old)
+{
+ struct cpu_context *context = calloc(1, sizeof(struct cpu_context));
+ uint32_t preempt_count_addr = 0;
+ uint32_t registers[10];
+ uint8_t *buffer = calloc(1, 4);
+ uint32_t stack = base_addr + QAT;
+ uint32_t thread_info_addr = 0;
+ uint32_t thread_info_addr_update = 0;
+ int retval = ERROR_FAIL;
+ context->R4 = 0xdeadbeef;
+ context->R5 = 0xdeadbeef;
+ context->R6 = 0xdeadbeef;
+ context->R7 = 0xdeadbeef;
+ context->R8 = 0xdeadbeef;
+ context->R9 = 0xdeadbeef;
+ context->IP = 0xdeadbeef;
+ context->FP = 0xdeadbeef;
+ context->SP = 0xdeadbeef;
+ context->PC = 0xdeadbeef;
+retry:
+
+ if (*thread_info_addr_old == 0xdeadbeef) {
+ retval = fill_buffer(target, stack, buffer);
+
+ if (retval == ERROR_OK)
+ thread_info_addr = get_buffer(target, buffer);
+ else
+ LOG_ERROR("cpu_context: unable to read memory");
+
+ thread_info_addr_update = thread_info_addr;
+ } else
+ thread_info_addr = *thread_info_addr_old;
+
+ preempt_count_addr = thread_info_addr + PREEMPT;
+ retval = fill_buffer(target, preempt_count_addr, buffer);
+
+ if (retval == ERROR_OK)
+ context->preempt_count = get_buffer(target, buffer);
+ else {
+ if (*thread_info_addr_old != 0xdeadbeef) {
+ LOG_ERROR
+ ("cpu_context: cannot read at thread_info_addr");
+
+ if (*thread_info_addr_old < LINUX_USER_KERNEL_BORDER)
+ LOG_INFO
+ ("cpu_context : thread_info_addr in userspace!!!");
+
+ *thread_info_addr_old = 0xdeadbeef;
+ goto retry;
+ }
+
+ LOG_ERROR("cpu_context: unable to read memory");
+ }
+
+ thread_info_addr += CPU_CONT;
+
+ retval = linux_read_memory(target, thread_info_addr, 4, 10,
+ (uint8_t *) registers);
+
+ if (retval != ERROR_OK) {
+ LOG_ERROR("cpu_context: unable to read memory\n");
+ return context;
+ }
+
+ context->R4 =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[0]);
+ context->R5 =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[1]);
+ context->R6 =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[2]);
+ context->R7 =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[3]);
+ context->R8 =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[4]);
+ context->R9 =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[5]);
+ context->IP =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[6]);
+ context->FP =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[7]);
+ context->SP =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[8]);
+ context->PC =
+ target_buffer_get_u32(target, (const uint8_t *)®isters[9]);
+
+ if (*thread_info_addr_old == 0xdeadbeef)
+ *thread_info_addr_old = thread_info_addr_update;
+
+ return context;
+}
+
+uint32_t next_task(struct target *target, struct threads *t)
+{
+ uint8_t *buffer = calloc(1, 4);
+ uint32_t next_addr = t->base_addr + NEXT;
+ int retval = fill_buffer(target, next_addr, buffer);
+
+ if (retval == ERROR_OK) {
+ uint32_t val = get_buffer(target, buffer);
+ val = val - NEXT;
+ return val;
+ free(buffer);
+ } else
+ LOG_ERROR("next task: unable to read memory");
+
+ return 0;
+}
+
+struct current_thread *add_current_thread(struct current_thread *currents,
+ struct current_thread *ct)
+{
+ ct->next = NULL;
+
+ if (currents == NULL) {
+ currents = ct;
+ return currents;
+ } else {
+ struct current_thread *temp = currents;
+
+ while (temp->next != NULL)
+ temp = temp->next;
+
+ temp->next = ct;
+ return currents;
+ }
+}
+
+struct threads *liste_del_task(struct threads *task_list, struct threads **t,
+ struct threads *prev)
+{
+ LOG_INFO("del task %" PRId64, (*t)->threadid);
+ prev->next = (*t)->next;
+
+ if (prev == task_list)
+ task_list = prev;
+
+ /* free content of threads */
+ if ((*t)->context)
+ free((*t)->context);
+
+ free(*t);
+ *t = prev;
+ return task_list;
+}
+
+struct threads *liste_add_task(struct threads *task_list, struct threads *t,
+ struct threads **last)
+{
+ t->next = NULL;
+
+ if (*last == NULL)
+ if (task_list == NULL) {
+ task_list = t;
+ return task_list;
+ } else {
+ struct threads *temp = task_list;
+
+ while (temp->next != NULL)
+ temp = temp->next;
+
+ temp->next = t;
+ *last = t;
+ return task_list;
+ } else {
+ (*last)->next = t;
+ *last = t;
+ return task_list;
+ }
+}
+
+#ifdef PID_CHECK
+static int current_pid(struct linux_os *linux_os, uint32_t pid)
+#else
+static int current_base_addr(struct linux_os *linux_os, uint32_t base_addr)
+#endif
+{
+ struct current_thread *ct = linux_os->current_threads;
+#ifdef PID_CHECK
+
+ while ((ct != NULL) && (ct->pid != pid))
+#else
+ while ((ct != NULL) && (ct->TS != base_addr))
+#endif
+ ct = ct->next;
+#ifdef PID_CHECK
+ if ((ct != NULL) && (ct->pid == pid))
+#else
+ if ((ct != NULL) && (ct->TS == base_addr))
+#endif
+ return 1;
+
+ return 0;
+}
+
+int linux_get_tasks(struct target *target, int context)
+{
+ int loop = 0;
+ int retval = 0;
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ linux_os->thread_list = NULL;
+ linux_os->thread_count = 0;
+
+ if (linux_os->init_task_addr == 0xdeadbeef) {
+ LOG_INFO("no init symbol\n");
+ return ERROR_FAIL;
+ }
+
+ int64_t start = timeval_ms();
+
+ struct threads *t = calloc(1, sizeof(struct threads));
+ struct threads *last = NULL;
+ t->base_addr = linux_os->init_task_addr;
+ /* retrieve the thread id , currently running in the different smp core */
+ retval = get_current(target, 1);
+
+ while (((t->base_addr != linux_os->init_task_addr) &&
+ (t->base_addr != 0))
+ || (loop == 0)
+ ) {
+ loop++;
+ retval = fill_task(target, t);
+ retval = get_name(target, t);
+
+ if (loop > MAX_THREADS) {
+ LOG_INFO("more than %d threads !!", MAX_THREADS);
+ return ERROR_FAIL;
+ }
+
+ if (retval != ERROR_OK) {
+ free(t);
+ return ERROR_FAIL;
+ }
+
+ /* check that this thread is not one the current threads already
+ * created */
+#ifdef PID_CHECK
+
+ if (!current_pid(linux_os, t->pid)) {
+#else
+ if (!current_base_addr(linux_os, t->base_addr)) {
+#endif
+ t->threadid = linux_os->threadid_count;
+ t->status = 1;
+ linux_os->threadid_count++;
+
+ linux_os->thread_list =
+ liste_add_task(linux_os->thread_list, t, &last);
+ /* no interest to fill the context if it is a current thread. */
+ linux_os->thread_count++;
+ t->thread_info_addr = 0xdeadbeef;
+
+ if (context)
+ t->context =
+ cpu_context_read(target, t->base_addr,
+ &t->thread_info_addr);
+ } else {
+ /*LOG_INFO("thread %s is a current thread already created",t->name); */
+ free(t);
+ }
+
+ uint32_t base_addr = next_task(target, t);
+ t = calloc(1, sizeof(struct threads));
+ t->base_addr = base_addr;
+ }
+
+ linux_os->threads_lookup = 1;
+ linux_os->threads_needs_update = 0;
+ linux_os->preupdtate_threadid_count = linux_os->threadid_count - 1;
+ /* check that all current threads have been identified */
+
+ LOG_INFO("complete time %" PRId64", thread mean %" PRId64"\n",
+ (timeval_ms() - start),
+ (timeval_ms() - start) / linux_os->threadid_count);
+
+ LOG_INFO("threadid count %d", linux_os->threadid_count);
+
+ return ERROR_OK;
+}
+
+static int clean_threadlist(struct target *target)
+{
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ struct threads *old, *temp = linux_os->thread_list;
+
+ while (temp != NULL) {
+ old = temp;
+
+ if (temp->context)
+ free(temp->context);
+
+ temp = temp->next;
+ free(old);
+ }
+
+ return ERROR_OK;
+}
+
+static int linux_os_clean(struct target *target)
+{
+
+ struct linux_os *os_linux = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ clean_threadlist(target);
+ os_linux->init_task_addr = 0xdeadbeef;
+ os_linux->name = "linux";
+ os_linux->thread_list = NULL;
+ os_linux->thread_count = 0;
+ os_linux->nr_cpus = 0;
+ os_linux->threads_lookup = 0;
+ os_linux->threads_needs_update = 0;
+ os_linux->threadid_count = 1;
+ return ERROR_OK;
+}
+
+static int insert_into_threadlist(struct target *target, struct threads *t)
+{
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ struct threads *temp = linux_os->thread_list;
+ t->threadid = linux_os->threadid_count;
+ linux_os->threadid_count++;
+ t->status = 1;
+ t->next = NULL;
+
+ if (temp == NULL)
+ linux_os->thread_list = t;
+ else {
+ while (temp->next != NULL)
+ temp = temp->next;
+
+ t->next = NULL;
+ temp->next = t;
+ }
+
+ return ERROR_OK;
+}
+
+static void linux_identify_current_threads(struct target *target)
+{
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ struct threads *thread_list = linux_os->thread_list;
+ struct current_thread *ct = linux_os->current_threads;
+ struct threads *t = NULL;
+
+ while ((ct != NULL)) {
+ if (ct->threadid == -1) {
+
+ /* un-identified thread */
+ int found = 0;
+ t = calloc(1, sizeof(struct threads));
+ t->base_addr = ct->TS;
+#ifdef PID_CHECK
+
+ if (fill_task_pid(target, t) != ERROR_OK) {
+error_handling:
+ free(t);
+ LOG_ERROR
+ ("linux identify_current_threads: unable to read pid");
+ return;
+ }
+#endif
+
+ /* search in the list of threads if pid
+ already present */
+ while ((thread_list != NULL) && (found == 0)) {
+#ifdef PID_CHECK
+ if (thread_list->pid == t->pid) {
+#else
+ if (thread_list->base_addr == t->base_addr) {
+#endif
+ free(t);
+ t = thread_list;
+ found = 1;
+ }
+ thread_list = thread_list->next;
+ }
+
+ if (!found) {
+ /* it is a new thread */
+ if (fill_task(target, t) != ERROR_OK)
+ goto error_handling;
+
+ get_name(target, t);
+ insert_into_threadlist(target, t);
+ t->thread_info_addr = 0xdeadbeef;
+ }
+
+ t->status = 3;
+ ct->threadid = t->threadid;
+#ifdef PID_CHECK
+ ct->pid = t->pid;
+#endif
+ linux_os->thread_count++;
+#if 0
+ if (found == 0)
+ LOG_INFO("current thread core %x identified %s",
+ ct->core_id, t->name);
+ else
+ LOG_INFO("current thread core %x, reused %s",
+ ct->core_id, t->name);
+#endif
+ }
+#if 0
+ else {
+ struct threads tmp;
+ tmp.base_addr = ct->TS;
+ get_name(target, &tmp);
+ LOG_INFO("current thread core %x , already identified %s !!!",
+ ct->core_id, tmp.name);
+ }
+#endif
+ ct = ct->next;
+ }
+
+ return;
+#ifndef PID_CHECK
+error_handling:
+ free(t);
+ LOG_ERROR("unable toread pid");
+ return;
+
+#endif
+ }
+
+static int linux_task_update(struct target *target, int context)
+{
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ struct threads *thread_list = linux_os->thread_list;
+ int retval;
+ int loop = 0;
+ linux_os->thread_count = 0;
+
+ /*thread_list = thread_list->next; skip init_task*/
+ while (thread_list != NULL) {
+ thread_list->status = 0; /*setting all tasks to dead state*/
+
+ if (thread_list->context) {
+ free(thread_list->context);
+ thread_list->context = NULL;
+ }
+
+ thread_list = thread_list->next;
+
+ }
+
+ int found = 0;
+
+ if (linux_os->init_task_addr == 0xdeadbeef) {
+ LOG_INFO("no init symbol\n");
+ return ERROR_FAIL;
+ }
+ int64_t start = timeval_ms();
+ struct threads *t = calloc(1, sizeof(struct threads));
+ uint32_t previous = 0xdeadbeef;
+ t->base_addr = linux_os->init_task_addr;
+ retval = get_current(target, 0);
+ /*check that all current threads have been identified */
+ linux_identify_current_threads(target);
+
+ while (((t->base_addr != linux_os->init_task_addr) &&
+ (t->base_addr != previous)) || (loop == 0)) {
+ /* for avoiding any permanent loop for any reason possibly due to
+ * target */
+ loop++;
+ previous = t->base_addr;
+ /* read only pid */
+#ifdef PID_CHECK
+ retval = fill_task_pid(target, t);
+#endif
+
+ if (retval != ERROR_OK) {
+ free(t);
+ return ERROR_FAIL;
+ }
+
+ thread_list = linux_os->thread_list;
+
+ while (thread_list != NULL) {
+#ifdef PID_CHECK
+
+ if (t->pid == thread_list->pid) {
+#else
+ if (t->base_addr == thread_list->base_addr) {
+#endif
+
+ if (!thread_list->status) {
+#ifdef PID_CHECK
+
+ if (t->base_addr !=
+ thread_list->base_addr) {
+ LOG_INFO
+ ("thread base_addr has changed !!");
+ }
+#endif
+ /* this is not a current thread */
+ thread_list->base_addr = t->base_addr;
+ thread_list->status = 1;
+
+ /* we don 't update this field any more */
+
+ /*thread_list->state = t->state;
+ thread_list->oncpu = t->oncpu;
+ thread_list->asid = t->asid;
+ */
+ if (context)
+ thread_list->context =
+ cpu_context_read(target,
+ thread_list->
+ base_addr,
+ &thread_list->
+ thread_info_addr);
+ } else {
+ /* it is a current thread no need to read context */
+ }
+
+ linux_os->thread_count++;
+ found = 1;
+ break;
+ } else {
+ found = 0;
+ thread_list = thread_list->next;
+ }
+ }
+
+ if (found == 0) {
+ uint32_t base_addr;
+ fill_task(target, t);
+ get_name(target, t);
+ retval = insert_into_threadlist(target, t);
+ t->thread_info_addr = 0xdeadbeef;
+
+ if (context)
+ t->context =
+ cpu_context_read(target, t->base_addr,
+ &t->thread_info_addr);
+
+ base_addr = next_task(target, t);
+ t = calloc(1, sizeof(struct threads));
+ t->base_addr = base_addr;
+ linux_os->thread_count++;
+ } else
+ t->base_addr = next_task(target, t);
+
+ }
+
+ LOG_INFO("update thread done %" PRId64", mean%" PRId64"\n",
+ (timeval_ms() - start), (timeval_ms() - start) / loop);
+ free(t);
+ linux_os->threads_needs_update = 0;
+ return ERROR_OK;
+}
+
+int linux_gdb_thread_packet(struct target *target,
+ struct connection *connection, char *packet,
+ int packet_size)
+{
+
+ int retval;
+ struct linux_os *linux_os =
+ (struct linux_os *)target->rtos->rtos_specific_params;
+
+ if (linux_os->init_task_addr == 0xdeadbeef) {
+ /* it has not been initialized */
+ LOG_INFO("received thread request without init task address");
+ gdb_put_packet(connection, "l", 1);
+ return ERROR_OK;
+ }
+
+ retval = linux_get_tasks(target, 1);
+
+ if (retval != ERROR_OK)
+ return ERROR_TARGET_FAILURE;
+
+ char *out_str = (char *)calloc(1, 350 * sizeof(int64_t));
+ char *tmp_str = out_str;
+ tmp_str += sprintf(tmp_str, "m");
+ struct threads *temp = linux_os->thread_list;
+ tmp_str += sprintf(tmp_str, "%016" PRIx64, temp->threadid);
+ temp = temp->next;
+
+ while (temp != NULL) {
+ tmp_str += sprintf(tmp_str, ",");
+ tmp_str += sprintf(tmp_str, "%016" PRIx64, temp->threadid);
+ temp = temp->next;
+ }
+
+ gdb_put_packet(connection, out_str, strlen(out_str));
+ return ERROR_OK;
+}
+
+int linux_gdb_thread_update(struct target *target,
+ struct connection *connection, char *packet,
+ int packet_size)
+{
+ int found = 0;
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ struct threads *temp = linux_os->thread_list;
+
+ while (temp != NULL) {
+ if (temp->threadid == linux_os->preupdtate_threadid_count + 1) {
+ /*LOG_INFO("FOUND");*/
+ found = 1;
+ break;
+ } else
+ temp = temp->next;
+ }
+
+ if (found == 1) {
+ /*LOG_INFO("INTO GDB THREAD UPDATE FOUNDING START TASK");*/
+ char *out_strr = (char *)calloc(1, 350 * sizeof(int64_t));
+ char *tmp_strr = out_strr;
+ tmp_strr += sprintf(tmp_strr, "m");
+ /*LOG_INFO("CHAR MALLOC & M DONE");*/
+ tmp_strr += sprintf(tmp_strr, "%016" PRIx64, temp->threadid);
+
+ temp = temp->next;
+
+ while (temp != NULL) {
+ /*LOG_INFO("INTO GDB THREAD UPDATE WHILE");*/
+ tmp_strr += sprintf(tmp_strr, ",");
+ tmp_strr +=
+ sprintf(tmp_strr, "%016" PRIx64, temp->threadid);
+ temp = temp->next;
+ }
+
+ /*tmp_str[0] = 0;*/
+ gdb_put_packet(connection, out_strr, strlen(out_strr));
+ linux_os->preupdtate_threadid_count =
+ linux_os->threadid_count - 1;
+ free(out_strr);
+ } else
+ gdb_put_packet(connection, "l", 1);
+
+ return ERROR_OK;
+}
+
+int linux_thread_extra_info(struct target *target,
+ struct connection *connection, char *packet,
+ int packet_size)
+{
+ int64_t threadid = 0;
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ sscanf(packet, "qThreadExtraInfo,%" SCNx64, &threadid);
+ /*LOG_INFO("lookup extra info for thread %" SCNx64, threadid);*/
+ struct threads *temp = linux_os->thread_list;
+
+ while (temp != NULL) {
+ if (temp->threadid == threadid) {
+ char *pid = " PID: ";
+ char *pid_current = "*PID: ";
+ char *name = "NAME: ";
+ int str_size = strlen(pid) + strlen(name);
+ char *tmp_str = (char *)calloc(1, str_size + 50);
+ char *tmp_str_ptr = tmp_str;
+
+ /* discriminate cuurent task */
+ if (temp->status == 3)
+ tmp_str_ptr += sprintf(tmp_str_ptr, "%s",
+ pid_current);
+ else
+ tmp_str_ptr += sprintf(tmp_str_ptr, "%s", pid);
+
+ tmp_str_ptr +=
+ sprintf(tmp_str_ptr, "%d", (int)temp->pid);
+ tmp_str_ptr += sprintf(tmp_str_ptr, "%s", " | ");
+ tmp_str_ptr += sprintf(tmp_str_ptr, "%s", name);
+ tmp_str_ptr += sprintf(tmp_str_ptr, "%s", temp->name);
+ char *hex_str =
+ (char *)calloc(1, strlen(tmp_str) * 2 + 1);
+ str_to_hex(hex_str, tmp_str);
+ gdb_put_packet(connection, hex_str, strlen(hex_str));
+ free(hex_str);
+ free(tmp_str);
+ return ERROR_OK;
+ }
+
+ temp = temp->next;
+ }
+
+ LOG_INFO("thread not found");
+ return ERROR_OK;
+}
+
+int linux_gdb_T_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
+{
+ int64_t threadid;
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ int retval = ERROR_OK;
+ sscanf(packet, "T%" SCNx64, &threadid);
+
+ if (linux_os->threads_needs_update == 0) {
+ struct threads *temp = linux_os->thread_list;
+ struct threads *prev = linux_os->thread_list;
+
+ while (temp != NULL) {
+ if (temp->threadid == threadid) {
+ if (temp->status != 0) {
+ gdb_put_packet(connection, "OK", 2);
+ return ERROR_OK;
+ } else {
+ /* delete item in the list */
+ linux_os->thread_list =
+ liste_del_task(linux_os->
+ thread_list, &temp,
+ prev);
+ linux_os->thread_count--;
+ gdb_put_packet(connection, "E01", 3);
+ return ERROR_OK;
+ }
+ }
+
+ /* for deletion */
+ prev = temp;
+ temp = temp->next;
+ }
+
+ LOG_INFO("gdb requested status on non existing thread");
+ gdb_put_packet(connection, "E01", 3);
+ return ERROR_OK;
+
+ } else {
+ retval = linux_task_update(target, 1);
+ struct threads *temp = linux_os->thread_list;
+
+ while (temp != NULL) {
+ if (temp->threadid == threadid) {
+ if (temp->status == 1) {
+ gdb_put_packet(connection, "OK", 2);
+ return ERROR_OK;
+ } else {
+ gdb_put_packet(connection, "E01", 3);
+ return ERROR_OK;
+ }
+ }
+
+ temp = temp->next;
+ }
+ }
+
+ return retval;
+}
+
+int linux_gdb_h_packet(struct connection *connection,
+ struct target *target, char *packet, int packet_size)
+{
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ struct current_thread *ct = linux_os->current_threads;
+
+ /* select to display the current thread of the selected target */
+ while ((ct != NULL) && (ct->core_id != target->coreid))
+ ct = ct->next;
+
+ int64_t current_gdb_thread_rq;
+
+ if (linux_os->threads_lookup == 1) {
+ if ((ct != NULL) && (ct->threadid == -1)) {
+ ct = linux_os->current_threads;
+
+ while ((ct != NULL) && (ct->threadid == -1))
+ ct = ct->next;
+ }
+
+ if (ct == NULL) {
+ /* no current thread can be identified */
+ /* any way with smp */
+ LOG_INFO("no current thread identified");
+ /* attempt to display the name of the 2 threads identified with
+ * get_current */
+ struct threads t;
+ ct = linux_os->current_threads;
+
+ while ((ct != NULL) && (ct->threadid == -1)) {
+ t.base_addr = ct->TS;
+ get_name(target, &t);
+ LOG_INFO("name of unidentified thread %s",
+ t.name);
+ ct = ct->next;
+ }
+
+ gdb_put_packet(connection, "OK", 2);
+ return ERROR_OK;
+ }
+
+ if (packet[1] == 'g') {
+ sscanf(packet, "Hg%16" SCNx64, ¤t_gdb_thread_rq);
+
+ if (current_gdb_thread_rq == 0) {
+ target->rtos->current_threadid = ct->threadid;
+ gdb_put_packet(connection, "OK", 2);
+ } else {
+ target->rtos->current_threadid =
+ current_gdb_thread_rq;
+ gdb_put_packet(connection, "OK", 2);
+ }
+ } else if (packet[1] == 'c') {
+ sscanf(packet, "Hc%16" SCNx64, ¤t_gdb_thread_rq);
+
+ if ((current_gdb_thread_rq == 0) ||
+ (current_gdb_thread_rq == ct->threadid)) {
+ target->rtos->current_threadid = ct->threadid;
+ gdb_put_packet(connection, "OK", 2);
+ } else
+ gdb_put_packet(connection, "E01", 3);
+ }
+ } else
+ gdb_put_packet(connection, "OK", 2);
+
+ return ERROR_OK;
+}
+
+static int linux_thread_packet(struct connection *connection, char *packet,
+ int packet_size)
+{
+ int retval = ERROR_OK;
+ struct current_thread *ct;
+ struct target *target = get_target_from_connection(connection);
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+
+ switch (packet[0]) {
+ case 'T': /* Is thread alive?*/
+
+ linux_gdb_T_packet(connection, target, packet, packet_size);
+ break;
+ case 'H': /* Set current thread */
+ /* ( 'c' for step and continue, 'g' for all other operations )*/
+ /*LOG_INFO(" H packet received '%s'", packet);*/
+ linux_gdb_h_packet(connection, target, packet, packet_size);
+ break;
+ case 'q':
+
+ if ((strstr(packet, "qSymbol"))) {
+ if (rtos_qsymbol(connection, packet, packet_size) == 1) {
+ gdb_put_packet(connection, "OK", 2);
+
+ linux_compute_virt2phys(target,
+ target->rtos->
+ symbols[INIT_TASK].
+ address);
+ }
+
+ break;
+ } else if (strstr(packet, "qfThreadInfo")) {
+ if (linux_os->thread_list == NULL) {
+ retval = linux_gdb_thread_packet(target,
+ connection,
+ packet,
+ packet_size);
+ break;
+ } else {
+ retval = linux_gdb_thread_update(target,
+ connection,
+ packet,
+ packet_size);
+ break;
+ }
+ } else if (strstr(packet, "qsThreadInfo")) {
+ gdb_put_packet(connection, "l", 1);
+ break;
+ } else if (strstr(packet, "qThreadExtraInfo,")) {
+ linux_thread_extra_info(target, connection, packet,
+ packet_size);
+ break;
+ } else {
+ retval = GDB_THREAD_PACKET_NOT_CONSUMED;
+ break;
+ }
+
+ case 'Q':
+ /* previously response was : thread not found
+ * gdb_put_packet(connection, "E01", 3); */
+ retval = GDB_THREAD_PACKET_NOT_CONSUMED;
+ break;
+ case 'c':
+ case 's':{
+ if (linux_os->threads_lookup == 1) {
+ ct = linux_os->current_threads;
+
+ while ((ct != NULL)
+ && (ct->core_id) != target->coreid) {
+ ct = ct->next;
+ }
+
+ if ((ct != NULL) && (ct->threadid == -1)) {
+ ct = linux_os->current_threads;
+
+ while ((ct != NULL)
+ && (ct->threadid == -1)) {
+ ct = ct->next;
+ }
+ }
+
+ if ((ct != NULL) && (ct->threadid !=
+ target->rtos->
+ current_threadid)
+ && (target->rtos->current_threadid != -1))
+ LOG_WARNING("WARNING! current GDB thread do not match"\
+ "current thread running."\
+ "Switch thread in GDB to threadid %d", (int)ct->threadid);
+
+ LOG_INFO("threads_needs_update = 1");
+ linux_os->threads_needs_update = 1;
+ }
+ }
+
+ /* if a packet handler returned an error, exit input loop */
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ return retval;
+}
+
+static int linux_os_smp_init(struct target *target)
+{
+ struct target_list *head;
+ /* keep only target->rtos */
+ struct rtos *rtos = target->rtos;
+ struct linux_os *os_linux =
+ (struct linux_os *)rtos->rtos_specific_params;
+ struct current_thread *ct;
+ head = target->head;
+
+ while (head != (struct target_list *)NULL) {
+ if (head->target->rtos != rtos) {
+ struct linux_os *smp_os_linux =
+ (struct linux_os *)head->target->rtos->
+ rtos_specific_params;
+ /* remap smp target on rtos */
+ free(head->target->rtos);
+ head->target->rtos = rtos;
+ /* reuse allocated ct */
+ ct = smp_os_linux->current_threads;
+ ct->threadid = -1;
+ ct->TS = 0xdeadbeef;
+ ct->core_id = head->target->coreid;
+ os_linux->current_threads =
+ add_current_thread(os_linux->current_threads, ct);
+ os_linux->nr_cpus++;
+ free(smp_os_linux);
+ }
+
+ head = head->next;
+ }
+
+ return ERROR_OK;
+}
+
+static int linux_os_create(struct target *target)
+{
+ struct linux_os *os_linux = calloc(1, sizeof(struct linux_os));
+ struct current_thread *ct = calloc(1, sizeof(struct current_thread));
+ LOG_INFO("linux os creation\n");
+ os_linux->init_task_addr = 0xdeadbeef;
+ os_linux->name = "linux";
+ os_linux->thread_list = NULL;
+ os_linux->thread_count = 0;
+ target->rtos->current_threadid = -1;
+ os_linux->nr_cpus = 1;
+ os_linux->threads_lookup = 0;
+ os_linux->threads_needs_update = 0;
+ os_linux->threadid_count = 1;
+ os_linux->current_threads = NULL;
+ target->rtos->rtos_specific_params = (void *)os_linux;
+ ct->core_id = target->coreid;
+ ct->threadid = -1;
+ ct->TS = 0xdeadbeef;
+ os_linux->current_threads =
+ add_current_thread(os_linux->current_threads, ct);
+ /* overload rtos thread default handler */
+ target->rtos->gdb_thread_packet = linux_thread_packet;
+ /* initialize a default virt 2 phys translation */
+ os_linux->phys_mask = ~0xc0000000;
+ os_linux->phys_base = 0x0;
+ return JIM_OK;
+}
+
+static char *linux_ps_command(struct target *target)
+{
+ struct linux_os *linux_os = (struct linux_os *)
+ target->rtos->rtos_specific_params;
+ int retval = ERROR_OK;
+ char *display;
+
+ if (linux_os->threads_lookup == 0) {
+ retval = linux_get_tasks(target, 1);
+ } else {
+ if (linux_os->threads_needs_update != 0)
+ retval = linux_task_update(target, 0);
+ }
+
+ if (retval == ERROR_OK) {
+ struct threads *temp = linux_os->thread_list;
+ char *tmp;
+ LOG_INFO("allocation for %d threads line",
+ linux_os->thread_count);
+ display = calloc((linux_os->thread_count + 2) * 80, 1);
+
+ if (!display)
+ goto error;
+
+ tmp = display;
+ tmp += sprintf(tmp, "PID\t\tCPU\t\tASID\t\tNAME\n");
+ tmp += sprintf(tmp, "---\t\t---\t\t----\t\t----\n");
+
+ while (temp != NULL) {
+ if (temp->status) {
+ if (temp->context)
+ tmp +=
+ sprintf(tmp,
+ "%d\t\t%d\t\t%x\t\t%s\n",
+ (int)temp->pid, temp->oncpu,
+ temp->asid, temp->name);
+ else
+ tmp +=
+ sprintf(tmp,
+ "%d\t\t%d\t\t%x\t\t%s\n",
+ (int)temp->pid, temp->oncpu,
+ temp->asid, temp->name);
+ }
+
+ temp = temp->next;
+ }
+
+ return display;
+ }
+
+error:
+ display = calloc(40, 1);
+ sprintf(display, "linux_ps_command failed\n");
+ return display;
+}
projects / fw / openocd / commitdiff