//go:cgo_import_dynamic libc_exit _exit "libc.so"
//go:cgo_import_dynamic libc_getcontext getcontext "libc.so"
//go:cgo_import_dynamic libc_kill kill "libc.so"
//go:cgo_import_dynamic libc_madvise madvise "libc.so"
//go:cgo_import_dynamic libc_malloc malloc "libc.so"
//go:cgo_import_dynamic libc_mmap mmap "libc.so"
//go:cgo_import_dynamic libc_munmap munmap "libc.so"
//go:cgo_import_dynamic libc_open open "libc.so"

	KeepAlive(addr) // Just for consistency. Hopefully addr is not a Go address.
}
func munmap_trampoline()

//go:nosplit
//go:cgo_unsafe_args
func madvise(addr unsafe.Pointer, n uintptr, flags int32) {
	libcCall(unsafe.Pointer(abi.FuncPCABI0(madvise_trampoline)), unsafe.Pointer(&addr))
	KeepAlive(addr) // Just for consistency. Hopefully addr is not a Go address.
}

	MOVL	$73, AX
	SYSCALL
	JCC	2(PC)
	MOVL	$0xf1, 0xf1  // crash
	RET

TEXT runtime·madvise(SB),NOSPLIT,$0
	MOVQ	addr+0(FP), DI
	MOVQ	n+8(FP), SI
	MOVL	flags+16(FP), DX
	MOVQ	$75, AX	// madvise
	SYSCALL
	JCC	2(PC)
	MOVL	$-1, AX
	MOVL	AX, ret+24(FP)
	RET

TEXT runtime·sigaltstack(SB),NOSPLIT,$-8
	MOVQ	new+0(FP), DI
	MOVQ	old+8(FP), SI
	MOVQ	$53, AX
	SYSCALL
	JCC	2(PC)

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:
	WORD	$0	// crash

// func madvise(addr unsafe.Pointer, n uintptr, flags int32) int32
TEXT runtime·madvise(SB),NOSPLIT|NOFRAME,$0
	MOV	addr+0(FP), A0
	MOV	n+8(FP), A1
	MOVW	flags+16(FP), A2
	MOV	$SYS_madvise, T0
	ECALL
	BEQ	T0, ZERO, ok

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
	MOVD	R0, (R0)	// crash

// func madvise(addr unsafe.Pointer, n uintptr, flags int32) int32
TEXT runtime·madvise(SB),NOSPLIT|NOFRAME,$0
	MOVD	addr+0(FP), R0
	MOVD	n+8(FP), R1
	MOVW	flags+16(FP), R2
	MOVD	$SYS_madvise, R8
	SVC
	BCC	ok

	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Madvise(b []byte, advice int) (err error) {
	var _p0 *byte
	if len(b) > 0 {
		_p0 = &b[0]
	}
	var _p1 int
	_p1 = len(b)
	r0, er := C.madvise(C.uintptr_t(uintptr(unsafe.Pointer(_p0))), C.size_t(_p1), C.int(advice))
	if r0 == -1 && er != nil {
		err = er
	}
	return
}

	SYS_SSTK                     = 70  // { int sstk(int incr); }
	SYS_OVADVISE                 = 72  // { int ovadvise(int anom); } vadvise \
	SYS_MUNMAP                   = 73  // { int munmap(void *addr, size_t len); }
	SYS_MPROTECT                 = 74  // { int mprotect(const void *addr, size_t len, \
	SYS_MADVISE                  = 75  // { int madvise(void *addr, size_t len, \
	SYS_MINCORE                  = 78  // { int mincore(const void *addr, size_t len, \

	SYS_SSTK                     = 70  // { int sstk(int incr); }
	SYS_OVADVISE                 = 72  // { int ovadvise(int anom); } vadvise \
	SYS_MUNMAP                   = 73  // { int munmap(void *addr, size_t len); }
	SYS_MPROTECT                 = 74  // { int mprotect(const void *addr, size_t len, \
	SYS_MADVISE                  = 75  // { int madvise(void *addr, size_t len, \
	SYS_MINCORE                  = 78  // { int mincore(const void *addr, size_t len, \

TEXT runtime·munmap(SB),NOSPLIT|NOFRAME,$0
	MOV	addr+0(FP), A0
	MOV	n+8(FP), A1
	MOV	$SYS_munmap, A7
	ECALL
	MOV	$-4096, T0
	BLTU	A0, T0, 2(PC)
	WORD	$0	// crash
	RET

// func madvise(addr unsafe.Pointer, n uintptr, flags int32)
TEXT runtime·madvise(SB),NOSPLIT|NOFRAME,$0
	MOV	addr+0(FP), A0
	MOV	n+8(FP), A1
	MOVW	flags+16(FP), A2
	MOV	$SYS_madvise, A7
	ECALL
	MOVW	A0, ret+24(FP)
	RET

//sys	Ustat(dev int, ubuf *Ustat_t) (err error)
//sys	write(fd int, p []byte) (n int, err error)

//sys	Dup2(oldfd int, newfd int) (err error)
//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = posix_fadvise64
//sys	Fchown(fd int, uid int, gid int) (err error)
//sys	fstat(fd int, stat *Stat_t) (err error)