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/*
* Copyright (c) 2022 Firebuild Inc.
* All rights reserved.
*
* Free for personal use and commercial trial.
* Non-trial commercial use requires licenses available from https://firebuild.com.
* Modification and redistribution are permitted, but commercial use of derivative
* works is subject to the same requirements of this license
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/* This binary is meant to be statically linked. */
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#define TOSTR(x) TOSTR2(x)
#define TOSTR2(x) #x
#define LOC "[" __FILE__ ":" TOSTR(__LINE__) "]"
int main(int argc, char *argv[]) {
puts("I am statically linked.");
fflush(stdout);
/* Test a vDSO call - that typically doesn't require kernel context switch */
struct timespec ts;
if (clock_gettime(CLOCK_REALTIME, &ts) != 0) {
perror("clock_gettime" LOC);
exit(1);
}
if (argc > 1) {
int recurse_level = 0;
sscanf(argv[1], "%d", &recurse_level);
while (recurse_level-- > 0) {
pid_t child_pid = fork();
if (child_pid > 0) {
wait(NULL);
return 0;
}
}
return system("echo end");
}
return 0;
}
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