Files

37 lines
923 B
C

/* Copyright (C) 2023 John Törnblom
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <unistd.h>
#include <sys/syscall.h>
int main() {
int pid;
//getpid()
asm("movq $20, %%rax \n"
"syscall \n"
"movl %%eax, %0 \n"
: "=r"(pid)
:
: "rax");
printf("pid: %d\n", pid);
return 0;
}