SYS_READV          = 120 // { ssize_t sys_readv(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_WRITEV         = 121 // { ssize_t sys_writev(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_KILL           = 122 // { int sys_kill(int pid, int signum); }
	SYS_FCHOWN         = 123 // { int sys_fchown(int fd, uid_t uid, gid_t gid); }
	SYS_FCHMOD         = 124 // { int sys_fchmod(int fd, mode_t mode); }

	SYS_READV          = 120 // { ssize_t sys_readv(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_WRITEV         = 121 // { ssize_t sys_writev(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_KILL           = 122 // { int sys_kill(int pid, int signum); }
	SYS_FCHOWN         = 123 // { int sys_fchown(int fd, uid_t uid, gid_t gid); }
	SYS_FCHMOD         = 124 // { int sys_fchmod(int fd, mode_t mode); }

	SYS_READV          = 120 // { ssize_t sys_readv(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_WRITEV         = 121 // { ssize_t sys_writev(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_KILL           = 122 // { int sys_kill(int pid, int signum); }
	SYS_FCHOWN         = 123 // { int sys_fchown(int fd, uid_t uid, gid_t gid); }
	SYS_FCHMOD         = 124 // { int sys_fchmod(int fd, mode_t mode); }

#define SYS_exit (SYS_BASE + 1)
#define SYS_read (SYS_BASE + 3)
#define SYS_write (SYS_BASE + 4)
#define SYS_open (SYS_BASE + 5)
#define SYS_close (SYS_BASE + 6)
#define SYS_getpid (SYS_BASE + 20)
#define SYS_kill (SYS_BASE + 37)
#define SYS_sigaltstack (SYS_BASE + 53)
#define SYS_munmap (SYS_BASE + 73)
#define SYS_madvise (SYS_BASE + 75)
#define SYS_setitimer (SYS_BASE + 83)
#define SYS_fcntl (SYS_BASE + 92)

	SYS_READV          = 120 // { ssize_t sys_readv(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_WRITEV         = 121 // { ssize_t sys_writev(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_KILL           = 122 // { int sys_kill(int pid, int signum); }
	SYS_FCHOWN         = 123 // { int sys_fchown(int fd, uid_t uid, gid_t gid); }
	SYS_FCHMOD         = 124 // { int sys_fchmod(int fd, mode_t mode); }

	SYS_READV          = 120 // { ssize_t sys_readv(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_WRITEV         = 121 // { ssize_t sys_writev(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_KILL           = 122 // { int sys_kill(int pid, int signum); }
	SYS_FCHOWN         = 123 // { int sys_fchown(int fd, uid_t uid, gid_t gid); }
	SYS_FCHMOD         = 124 // { int sys_fchmod(int fd, mode_t mode); }

	SYS_READV          = 120 // { ssize_t sys_readv(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_WRITEV         = 121 // { ssize_t sys_writev(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_KILL           = 122 // { int sys_kill(int pid, int signum); }
	SYS_FCHOWN         = 123 // { int sys_fchown(int fd, uid_t uid, gid_t gid); }
	SYS_FCHMOD         = 124 // { int sys_fchmod(int fd, mode_t mode); }

	SYSCALL
	MOVW	R2, R3	// arg 2 tid
	MOVW	R10, R2	// arg 1 pid
	MOVW	sig+0(FP), R4	// arg 2
	MOVW	$SYS_tgkill, R1
	SYSCALL
	RET

TEXT runtime·raiseproc(SB),NOSPLIT|NOFRAME,$0
	MOVW	$SYS_getpid, R1
	SYSCALL
	MOVW	R2, R2	// arg 1 pid
	MOVW	sig+0(FP), R3	// arg 2
	MOVW	$SYS_kill, R1
	SYSCALL
	RET

TEXT ·getpid(SB),NOSPLIT|NOFRAME,$0-8
	MOVW	$SYS_getpid, R1
	SYSCALL

	SYSCALL
	MOVW	R4, R5	// arg 2 tid
	MOVW	R23, R4	// arg 1 pid
	MOVW	sig+0(FP), R6	// arg 3
	MOVV	$SYS_tgkill, R11
	SYSCALL
	RET

// func raiseproc(sig uint32)
TEXT runtime·raiseproc(SB),NOSPLIT|NOFRAME,$0
	MOVV	$SYS_getpid, R11
	SYSCALL
	//MOVW	R4, R4	// arg 1 pid
	MOVW	sig+0(FP), R5	// arg 2
	MOVV	$SYS_kill, R11
	SYSCALL
	RET

// func getpid() int
TEXT ·getpid(SB),NOSPLIT|NOFRAME,$0-8

	SYS_READV          = 120 // { ssize_t sys_readv(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_WRITEV         = 121 // { ssize_t sys_writev(int fd, const struct iovec *iovp, int iovcnt); }
	SYS_KILL           = 122 // { int sys_kill(int pid, int signum); }
	SYS_FCHOWN         = 123 // { int sys_fchown(int fd, uid_t uid, gid_t gid); }
	SYS_FCHMOD         = 124 // { int sys_fchmod(int fd, mode_t mode); }