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5b86848d77
Since fmt no longer has a significant advantage in stack consumption, we need to bump the `MIN_SIZE` guard that prevents causing stack overflows due to the printing of the stack consumption.
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
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* Copyright (C) 2020 Freie Universität Berlin
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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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/**
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* @ingroup sys
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* @{
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*
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* @file
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* @brief Prints stack usage in JSON metric format, when a thread ends
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*
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*
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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*/
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#include "thread.h"
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#include "log.h"
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#if MODULE_FMT
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#include "fmt.h"
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#else
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#include <stdio.h>
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#endif
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# define MIN_SIZE (THREAD_STACKSIZE_TINY + THREAD_EXTRA_STACKSIZE_PRINTF)
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void print_stack_usage_metric(const char *name, void *stack, unsigned max_size)
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{
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unsigned free = thread_measure_stack_free(stack);
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if ((LOG_LEVEL >= LOG_INFO) &&
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(thread_get_stacksize(thread_get_active()) >= MIN_SIZE)) {
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#if MODULE_FMT
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print_str("{ \"threads\": [{ \"name\": \"");
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print_str(name);
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print_str(", \"stack_size\": ");
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print_u32_dec(max_size);
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print_str(", \"stack_used\": ");
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print_u32_dec(max_size - free);
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print_str("}]}\n");
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#else
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printf(
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"{ \"threads\": [{ \"name\": \"%s\", \"stack_size\": %u, \"stack_used\": %u }]}\n",
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name, max_size, max_size - free);
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#endif
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}
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}
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#ifdef DEVELHELP
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void test_utils_print_stack_usage(void)
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{
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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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continue;
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}
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print_stack_usage_metric(p->name, p->stack_start, p->stack_size);
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}
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}
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#endif
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