1 #include <unistd.h> 2 #include "syscall.h" 3 pipe(int fd[2])4 int pipe(int fd[2]) 5 { 6 #ifdef SYS_pipe 7 return syscall(SYS_pipe, fd); 8 #else 9 return syscall(SYS_pipe2, fd, 0); 10 #endif 11 } 12