#define SYS_exit			1
#define SYS_read			3
#define SYS_write			4
#define SYS_open			5
#define SYS_close			6
#define SYS_getpid			20
#define SYS_kill			37
#define SYS_munmap			73
#define SYS_madvise			75
#define SYS_fcntl			92
#define SYS_mmap			197
#define SYS___sysctl			202
#define SYS___sigaltstack14		281
#define SYS___sigprocmask14		293
#define SYS_issetugid			305
#define SYS_getcontext			307

	SYS_STAT                    = 5004
	SYS_FSTAT                   = 5005
	SYS_LSTAT                   = 5006
	SYS_POLL                    = 5007
	SYS_LSEEK                   = 5008
	SYS_MMAP                    = 5009
	SYS_MPROTECT                = 5010
	SYS_MUNMAP                  = 5011
	SYS_BRK                     = 5012
	SYS_RT_SIGACTION            = 5013
	SYS_RT_SIGPROCMASK          = 5014
	SYS_IOCTL                   = 5015

	SYS_GETITIMER      = 70  // { int sys_getitimer(int which, \
	SYS_SELECT         = 71  // { int sys_select(int nd, fd_set *in, fd_set *ou, \
	SYS_KEVENT         = 72  // { int sys_kevent(int fd, \
	SYS_MUNMAP         = 73  // { int sys_munmap(void *addr, size_t len); }
	SYS_MPROTECT       = 74  // { int sys_mprotect(void *addr, size_t len, \
	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, \

	SYS_EXECVE                         = 59
	SYS_UMASK                          = 60
	SYS_CHROOT                         = 61
	SYS_MSYNC                          = 65
	SYS_VFORK                          = 66
	SYS_MUNMAP                         = 73
	SYS_MPROTECT                       = 74
	SYS_MADVISE                        = 75
	SYS_MINCORE                        = 78
	SYS_GETGROUPS                      = 79

	SYS_GETPAGESIZE             = 64
	SYS_MSYNC                   = 65
	SYS_VFORK                   = 66
	SYS_PREAD64                 = 67
	SYS_PWRITE64                = 68
	SYS_MMAP                    = 71
	SYS_MUNMAP                  = 73
	SYS_MPROTECT                = 74
	SYS_MADVISE                 = 75
	SYS_VHANGUP                 = 76
	SYS_MINCORE                 = 78
	SYS_GETGROUPS               = 79

	SYS_READLINK                = 85
	SYS_USELIB                  = 86
	SYS_SWAPON                  = 87
	SYS_REBOOT                  = 88
	SYS_READDIR                 = 89
	SYS_MMAP                    = 90
	SYS_MUNMAP                  = 91
	SYS_TRUNCATE                = 92
	SYS_FTRUNCATE               = 93
	SYS_FCHMOD                  = 94
	SYS_GETPRIORITY             = 96
	SYS_SETPRIORITY             = 97

	SYS_GETITIMER      = 70  // { int sys_getitimer(int which, \
	SYS_SELECT         = 71  // { int sys_select(int nd, fd_set *in, fd_set *ou, \
	SYS_KEVENT         = 72  // { int sys_kevent(int fd, \
	SYS_MUNMAP         = 73  // { int sys_munmap(void *addr, size_t len); }
	SYS_MPROTECT       = 74  // { int sys_mprotect(void *addr, size_t len, \
	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, \

	SYS_GETITIMER      = 70  // { int sys_getitimer(int which, \
	SYS_SELECT         = 71  // { int sys_select(int nd, fd_set *in, fd_set *ou, \
	SYS_KEVENT         = 72  // { int sys_kevent(int fd, \
	SYS_MUNMAP         = 73  // { int sys_munmap(void *addr, size_t len); }
	SYS_MPROTECT       = 74  // { int sys_mprotect(void *addr, size_t len, \
	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, \

	MOVW	fd+24(FP), R4
	MOVW	off+28(FP), R5
	MOVD	$SYS_mmap, R8
	SVC
	BCS	fail
	MOVD	R0, p+32(FP)
	MOVD	$0, err+40(FP)
	RET
fail:
	MOVD	$0, p+32(FP)
	MOVD	R0, err+40(FP)
	RET

// func munmap(addr uintptr, n uintptr) (err error)
TEXT runtime·munmap(SB),NOSPLIT|NOFRAME,$0
	MOVD	addr+0(FP), R0
	MOVD	n+8(FP), R1
	MOVD	$SYS_munmap, R8
	SVC
	BCS	fail
	RET
fail:
	MOVD	$0, R0

	MOVW	fd+24(FP), A4
	MOVW	off+28(FP), A5
	MOV	$SYS_mmap, T0
	ECALL
	BNE	T0, ZERO, fail
	MOV	A0, p+32(FP)
	MOV	ZERO, err+40(FP)
	RET
fail:
	MOV	ZERO, p+32(FP)
	MOV	A0, err+40(FP)
	RET

// func munmap(addr uintptr, n uintptr) (err error)
TEXT runtime·munmap(SB),NOSPLIT|NOFRAME,$0
	MOV	addr+0(FP), A0
	MOV	n+8(FP), A1
	MOV	$SYS_munmap, T0
	ECALL
	BNE	T0, ZERO, fail
	RET
fail: