#include "textflag.h"

#define AT_FDCWD -100

#define SYS_exit		5058
#define SYS_read		5000
#define SYS_write		5001
#define SYS_close		5003
#define SYS_getpid		5038
#define SYS_kill		5060
#define SYS_mmap		5009
#define SYS_munmap		5011
#define SYS_setitimer		5036
#define SYS_clone		5055
#define SYS_nanosleep		5034
#define SYS_sched_yield		5023
#define SYS_rt_sigreturn	5211
#define SYS_rt_sigaction	5013

#define SYS_faccessat		48
#define SYS_futex		98
#define SYS_getpid		172
#define SYS_gettid		178
#define SYS_gettimeofday	169
#define SYS_kill		129
#define SYS_madvise		233
#define SYS_mincore		232
#define SYS_mmap		222
#define SYS_munmap		215
#define SYS_nanosleep		101
#define SYS_openat		56
#define SYS_pipe2		59
#define SYS_pselect6		72
#define SYS_read		63
#define SYS_rt_sigaction	134
#define SYS_rt_sigprocmask	135

	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_KEVENT         = 72  // { int sys_kevent(int fd, const struct kevent *changelist, int nchanges, struct kevent *eventlist, int nevents, const struct timespec *timeout); }
	SYS_MUNMAP         = 73  // { int sys_munmap(void *addr, size_t len); }
	SYS_MPROTECT       = 74  // { int sys_mprotect(void *addr, size_t len, int prot); }
	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, int behav); }

	SUBV	$16, R3		// reserve 16 bytes for sp-8 where fp may be saved.
	JAL	(R13)
	ADDV	$16, R3
	MOVV	R4, ret+32(FP)
	RET

// func sysMunmap(addr unsafe.Pointer, n uintptr)
TEXT runtime·sysMunmap(SB),NOSPLIT|NOFRAME,$0
	MOVV	addr+0(FP), R4
	MOVV	n+8(FP), R5
	MOVV	$SYS_munmap, R11
	SYSCALL
	MOVW	$-4096, R5
	BGEU	R5, R4, 2(PC)
	MOVV	R0, 0xf3(R0)	// crash
	RET

	SYS_KEVENT         = 72  // { int sys_kevent(int fd, const struct kevent *changelist, int nchanges, struct kevent *eventlist, int nevents, const struct timespec *timeout); }
	SYS_MUNMAP         = 73  // { int sys_munmap(void *addr, size_t len); }
	SYS_MPROTECT       = 74  // { int sys_mprotect(void *addr, size_t len, int prot); }
	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, int behav); }

	SYS_KEVENT         = 72  // { int sys_kevent(int fd, const struct kevent *changelist, int nchanges, struct kevent *eventlist, int nevents, const struct timespec *timeout); }
	SYS_MUNMAP         = 73  // { int sys_munmap(void *addr, size_t len); }
	SYS_MPROTECT       = 74  // { int sys_mprotect(void *addr, size_t len, int prot); }
	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, int behav); }

	SYS_KEVENT         = 72  // { int sys_kevent(int fd, const struct kevent *changelist, int nchanges, struct kevent *eventlist, int nevents, const struct timespec *timeout); }
	SYS_MUNMAP         = 73  // { int sys_munmap(void *addr, size_t len); }
	SYS_MPROTECT       = 74  // { int sys_mprotect(void *addr, size_t len, int prot); }
	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, int behav); }

#define AMD64_SET_FSBASE	129

#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_sigaltstack		53
#define SYS_munmap		73
#define SYS_madvise		75
#define SYS_setitimer		83
#define SYS_fcntl		92
#define SYS_sysarch		165
#define SYS___sysctl		202
#define SYS_clock_gettime	232
#define SYS_nanosleep		240
#define SYS_issetugid		253

	SYS_KEVENT         = 72  // { int sys_kevent(int fd, const struct kevent *changelist, int nchanges, struct kevent *eventlist, int nevents, const struct timespec *timeout); }
	SYS_MUNMAP         = 73  // { int sys_munmap(void *addr, size_t len); }
	SYS_MPROTECT       = 74  // { int sys_mprotect(void *addr, size_t len, int prot); }
	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, int behav); }