github.com/afumu/libc@v0.0.6/musl/src/process/vfork.c (about)

     1  #define _GNU_SOURCE
     2  #include <unistd.h>
     3  #include <signal.h>
     4  #include "syscall.h"
     5  
     6  pid_t vfork(void)
     7  {
     8  	/* vfork syscall cannot be made from C code */
     9  #ifdef SYS_fork
    10  	return syscall(SYS_fork);
    11  #else
    12  	return syscall(SYS_clone, SIGCHLD, 0);
    13  #endif
    14  }