jserv

#include <linux/module.h>

#include <linux/skbuff.h>
#include <net/cfg80211.h>

#include <linux/mutex.h>
#include <linux/workqueue.h>

#define WIPHY_NAME "owl" /* Our WireLess */
#define NDEV_NAME WIPHY_NAME "%d"

jserv

/* simrupt: A device that simulates interrupts */

#include <linux/cdev.h>
#include <linux/circ_buf.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kfifo.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/workqueue.h>

jserv

#include <inttypes.h>
#include <sys/time.h>

enum {
    EV_READ = (1 << 0),
    EV_WRITE = (1 << 1),
    EV_TIMEOUT_ONESHOT = (1 << 2),
    EV_TIMEOUT_PERIODIC = (1 << 3),
    EV_SIGNAL = (1 << 4),
    EV_CLOEXEC = (1 << 0),

jserv

/* Simple port forwarder */

#define _GNU_SOURCE 1
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <netdb.h>
#include <stdbool.h>
#include <stdio.h>

jserv

#include <assert.h>
#include <fcntl.h>
#include <limits.h>
#include <semaphore.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>

jserv

#include <stdio.h>
static void test() { puts(__func__); }
int main() {
    typedef void (*callback_t)(void);
    callback_t cb = &test;                                                                                                                                    
    (*cb)();
}

jserv

#include <stdio.h>
#define NUM 10000
int main() {
    float sum = 0.0f;
    for (int i = 0; i < NUM; i++) sum += i + 1;
    printf("Sum: %f\n", sum);
    return 0;
}

jserv

import atexit
import ctypes
import os
import shlex
import sys
import tempfile

CMD_C_TO_SO = '{compiler} -shared -o {output} {input} {libraries}'

jserv

# Execute an executable under gdb, printing a call stack if we get a crash.
gdb -return-child-result -quiet -batch \
    -ex "set env MALLOC_CHECK_=3" \
    -ex "set print thread-events off" \
    -ex run \
    -ex "thread apply all backtrace full" \
    -ex "quit" \
    $*

jserv

#include <stddef.h>
#include <stdint.h>
#include <limits.h>

#define ALIGN (sizeof(size_t))
#define ONES ((size_t)-1/UCHAR_MAX)                                                                      
#define HIGHS (ONES * (UCHAR_MAX/2+1))
#define HASZERO(x) ((x)-ONES & ~(x) & HIGHS)

#define SS (sizeof(size_t))