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sys/.../print_stack_usage: optionally use fmt, handle too small stacks

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This commit is contained in:
Kaspar Schleiser 2022-03-31 09:59:37 +02:00
parent fca56ba0c3
commit 0199bab468
1 changed files with 28 additions and 2 deletions
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30
sys/test_utils/print_stack_usage/print_stack_usage.c
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@ -20,11 +20,37 @@
#include "thread.h"
#include "log.h"
#if MODULE_FMT
#include "fmt.h"
#endif
#if MODULE_FMT
/* fmt's `print_str()` needs very little stack. ~200 total was fine on Cortex-M. */
# 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 = thread_measure_stack_free(stack);
LOG_INFO("{ \"threads\": [{ \"name\": \"%s\", \"stack_size\": %u, \"stack_used\": %u }]}\n",
name, max_size, max_size - free);
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