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139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
/**
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* Print thread information.
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*
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* Copyright (C) 2013, INRIA.
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*
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* @ingroup ps
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* @{
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* @file
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* @brief UNIX like ps command
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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* @}
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*/
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#include <stdio.h>
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#include "thread.h"
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#include "sched.h"
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#include "thread.h"
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#include "kernel_types.h"
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#ifdef MODULE_SCHEDSTATISTICS
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#include "xtimer.h"
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#endif
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#ifdef MODULE_TLSF
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#include "tlsf.h"
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#endif
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/* list of states copied from tcb.h */
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const char *state_names[] = {
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[STATUS_RUNNING] = "running",
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[STATUS_PENDING] = "pending",
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[STATUS_STOPPED] = "stopped",
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[STATUS_SLEEPING] = "sleeping",
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[STATUS_MUTEX_BLOCKED] = "bl mutex",
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[STATUS_RECEIVE_BLOCKED] = "bl rx",
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[STATUS_SEND_BLOCKED] = "bl send",
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[STATUS_REPLY_BLOCKED] = "bl reply",
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[STATUS_FLAG_BLOCKED_ANY] = "bl anyfl",
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[STATUS_FLAG_BLOCKED_ALL] = "bl allfl"
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};
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/**
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* @brief Prints a list of running threads including stack usage to stdout.
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*/
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void ps(void)
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{
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const char queued_name[] = {'_', 'Q'};
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#ifdef DEVELHELP
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int overall_stacksz = 0, overall_used = 0;
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#endif
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printf("\tpid | "
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#ifdef DEVELHELP
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"%-21s| "
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#endif
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"%-9sQ | pri "
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#ifdef DEVELHELP
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"| stack ( used) | base | current "
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#endif
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#ifdef MODULE_SCHEDSTATISTICS
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"| runtime | switches"
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#endif
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"\n",
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#ifdef DEVELHELP
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"name",
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#endif
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"state");
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#ifdef DEVELHELP
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int isr_usage = thread_arch_isr_stack_usage();
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void *isr_start = thread_arch_isr_stack_start();
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void *isr_sp = thread_arch_isr_stack_pointer();
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printf("\t - | isr_stack | - - |"
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" - | %5i (%5i) | %10p | %10p\n", ISR_STACKSIZE, isr_usage, isr_start, isr_sp);
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overall_stacksz += ISR_STACKSIZE;
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if (isr_usage > 0) {
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overall_used += isr_usage;
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}
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#endif
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for (kernel_pid_t i = KERNEL_PID_FIRST; i <= KERNEL_PID_LAST; i++) {
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thread_t *p = (thread_t *)sched_threads[i];
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if (p != NULL) {
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int state = p->status; /* copy state */
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const char *sname = state_names[state]; /* get state name */
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const char *queued = &queued_name[(int)(state >= STATUS_ON_RUNQUEUE)]; /* get queued flag */
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#ifdef DEVELHELP
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int stacksz = p->stack_size; /* get stack size */
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overall_stacksz += stacksz;
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stacksz -= thread_measure_stack_free(p->stack_start);
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overall_used += stacksz;
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#endif
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#ifdef MODULE_SCHEDSTATISTICS
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double runtime_ticks = sched_pidlist[i].runtime_ticks / (double) xtimer_now() * 100;
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int switches = sched_pidlist[i].schedules;
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#endif
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printf("\t%3" PRIkernel_pid
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#ifdef DEVELHELP
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" | %-20s"
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#endif
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" | %-8s %.1s | %3i"
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#ifdef DEVELHELP
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" | %5i (%5i) | %10p | %10p "
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#endif
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#ifdef MODULE_SCHEDSTATISTICS
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" | %6.3f%% | %8d"
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#endif
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"\n",
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p->pid,
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#ifdef DEVELHELP
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p->name,
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#endif
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sname, queued, p->priority
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#ifdef DEVELHELP
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, p->stack_size, stacksz, (void *)p->stack_start, (void *)p->sp
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#endif
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#ifdef MODULE_SCHEDSTATISTICS
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, runtime_ticks, switches
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#endif
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);
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}
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}
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#ifdef DEVELHELP
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printf("\t%5s %-21s|%13s%6s %5i (%5i)\n", "|", "SUM", "|", "|",
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overall_stacksz, overall_used);
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# ifdef MODULE_TLSF
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puts("\nHeap usage:");
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tlsf_walk_pool(NULL);
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# endif
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#endif
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}
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