xv6/syscall.h

#define SYS_fork 1
#define SYS_exit 2
#define SYS_wait 3
#define SYS_cons_putc 4
#define SYS_pipe 5
#define SYS_write 6
#define SYS_read 7
#define SYS_close 8
#define SYS_block 9
primitive fork and exit system calls 2006-06-15 16:02:20 +00:00			`#define SYS_fork 1`
			`#define SYS_exit 2`
sleep, wakeup, wait, exit 2006-06-15 19:58:01 +00:00			`#define SYS_wait 3`
system call arguments 2006-06-26 15:11:19 +00:00			`#define SYS_cons_putc 4`
file descriptors pipes 2006-06-27 14:35:53 +00:00			`#define SYS_pipe 5`
			`#define SYS_write 6`
			`#define SYS_read 7`
swtch saves callee-saved registers swtch idles on per-CPU stack, not on calling process's stack fix pipe bugs usertest.c tests pipes, fork, exit, close 2006-07-01 21:26:01 +00:00			`#define SYS_close 8`
disable all interrupts when acquiring lock user program that makes a blocking system call 2006-07-06 21:47:22 +00:00			`#define SYS_block 9`