mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
e93b5e4b98
`thread_measure_stack_free()` previously assumed that reading past the stack is safe. When the stack was indeed part of a thread, the `thread_t` structure is put after the stack, increasing the odds of this assumption to hold. However, `thread_measure_stack_free()` could also be used on the ISR stack, which may be allocated at the end of SRAM. A second parameter had to be added to indicate the stack size, so that reading past the stack can now be prevented. This also makes valgrind happy on `native`/`native64`.
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2020 Freie Universität Berlin
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
* directory for more details.
|
|
*/
|
|
|
|
/**
|
|
* @ingroup sys
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief Prints stack usage in JSON metric format, when a thread ends
|
|
*
|
|
*
|
|
* @author Kaspar Schleiser <kaspar@schleiser.de>
|
|
*/
|
|
|
|
#include "thread.h"
|
|
#include "log.h"
|
|
|
|
#if MODULE_FMT
|
|
#include "fmt.h"
|
|
#else
|
|
#include <stdio.h>
|
|
#endif
|
|
|
|
#if MODULE_FMT
|
|
# define MIN_SIZE (THREAD_STACKSIZE_TINY)
|
|
#else
|
|
# define MIN_SIZE (THREAD_STACKSIZE_TINY + THREAD_EXTRA_STACKSIZE_PRINTF)
|
|
#endif
|
|
|
|
void print_stack_usage_metric(const char *name, void *stack, unsigned max_size)
|
|
{
|
|
unsigned free = measure_stack_free_internal(stack, max_size);
|
|
|
|
if ((LOG_LEVEL >= LOG_INFO) &&
|
|
(thread_get_stacksize(thread_get_active()) >= MIN_SIZE)) {
|
|
#if MODULE_FMT
|
|
print_str("{ \"threads\": [{ \"name\": \"");
|
|
print_str(name);
|
|
print_str("\", \"stack_size\": ");
|
|
print_u32_dec(max_size);
|
|
print_str(", \"stack_used\": ");
|
|
print_u32_dec(max_size - free);
|
|
print_str("}]}\n");
|
|
#else
|
|
printf(
|
|
"{ \"threads\": [{ \"name\": \"%s\", \"stack_size\": %u, \"stack_used\": %u }]}\n",
|
|
name, max_size, max_size - free);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#ifdef DEVELHELP
|
|
void test_utils_print_stack_usage(void)
|
|
{
|
|
for (kernel_pid_t i = KERNEL_PID_FIRST; i <= KERNEL_PID_LAST; i++) {
|
|
thread_t *p = thread_get(i);
|
|
|
|
if (p == NULL) {
|
|
continue;
|
|
}
|
|
print_stack_usage_metric(thread_get_name(p), thread_get_stackstart(
|
|
p), thread_get_stacksize(p));
|
|
}
|
|
}
|
|
#endif
|