yashi

$ cat a.c
#include <stdint.h>

uint16_t GetTimer(void);

void delay_us(uint16_t dt) {
	uint16_t t1 = GetTimer();
	uint16_t t2 = GetTimer() - t1;
	while (t2 < dt) {
	}

yashi

$ gdb -p $(pidof rviz2)
GNU gdb (Debian 12.1-4+b1) 12.1
Copyright (C) 2022 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:

yashi

cmake_minimum_required(VERSION 3.25)

project(test)

add_executable(hello hello.c)

add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/include/foo.h
  # Ninja always implicitly creates target directories
  COMMAND mkdir -p include/
  COMMAND touch include/foo.h)

yashi

#include <libgen.h>
#include <ft2build.h>
#include FT_FREETYPE_H

#define DPI (96)       /* device resolution */

void die(void)
{
	printf("oops\n");
	exit(1);

yashi

digraph G {
    edge [weight=10]
    TAI -> UTC [label="−∆AT"];
    UTC -> UT1 [label="+∆UT1"]
    UT1 -> TT [label="+∆T"]
    TT -> TCG [label="linear"]
    TCG -> TCB [label="4 D"]
    TCB -> TDB [label="Linear"]

    edge [weight=2]

yashi

#include <stdio.h>
#include "SpiceUsr.h"

int main()
{
	SpiceBoolean found;
	SpiceInt nr;
	SpiceDouble radii[3];
	SpiceInt code;
	SpiceChar name[] = "Io";

yashi

To emulate `hashFiles()` in GitHub Actions with `sha256sum`, you can do
```shell
sha256sum file | cut -f1 -d ' ' | xxd -r -p | sha256sum
```

yashi

#include <zephyr.h>
#include <sys/printk.h>
#include <sys/ring_buffer.h>

#define RING_BUF_SIZE 10
RING_BUF_ITEM_DECLARE_SIZE(ringbuf, RING_BUF_SIZE);

void dump(struct ring_buf *r, uint32_t ret)
{
        printk("ret %3u, size %3u space %3u head %3u tail %3u\n",

yashi

#include <drivers/led.h>

void main(void)
{
	const struct device *led = device_get_binding("SC LED");

	while (1) {
		led_on(led, 1);
		k_msleep(1000);
		led_off(led, 1);

yashi

#include <zephyr.h>

#define MY_STACK_SIZE 5000

K_THREAD_STACK_DEFINE(preempt_stack, MY_STACK_SIZE);
struct k_thread preempt_thread;

K_THREAD_STACK_DEFINE(coop_stack, MY_STACK_SIZE);
struct k_thread coop_thread;