//go:linkname libc_setitimer libc_setitimer
//go:linkname libc_sigaction libc_sigaction
//go:linkname libc_sigaltstack libc_sigaltstack
//go:linkname libc_sysconf libc_sysconf
//go:linkname libc_usleep libc_usleep
//go:linkname libc_write libc_write
//go:linkname libc_getuid libc_getuid
//go:linkname libc_geteuid libc_geteuid
//go:linkname libc_getgid libc_getgid
//go:linkname libc_getegid libc_getegid

//go:linkname libc_munmap libc_munmap
//go:linkname libc___xnet_sendto libc___xnet_sendto
//go:linkname libc___xnet_socket libc___xnet_socket
//go:linkname libc___xnet_socketpair libc___xnet_socketpair
//go:linkname libc_write libc_write
//go:linkname libc_writev libc_writev
//go:linkname libc___xnet_getsockopt libc___xnet_getsockopt
//go:linkname libc_getpeername libc_getpeername
//go:linkname libc_getsockname libc_getsockname

	_, err = syscall2(&libc_setpgid, pid, pgid)
	return
}

//go:linkname syscall_write1 syscall.write1
//go:nosplit
func syscall_write1(fd, buf, nbyte uintptr) (n, err uintptr) {
	n, err = syscall3(&libc_write, fd, buf, nbyte)
	return

//go:cgo_import_dynamic libc_madvise madvise "libc.so"

//go:cgo_import_dynamic libc_open open "libc.so"
//go:cgo_import_dynamic libc_close close "libc.so"
//go:cgo_import_dynamic libc_read read "libc.so"
//go:cgo_import_dynamic libc_write write "libc.so"
//go:cgo_import_dynamic libc_pipe2 pipe2 "libc.so"

//go:cgo_import_dynamic libc_clock_gettime clock_gettime "libc.so"
//go:cgo_import_dynamic libc_setitimer setitimer "libc.so"

	MOVD	$libc_exit(SB), R12
	CSYSCALL()
	RET

// Runs on OS stack, called from runtime·write1.
TEXT runtime·write2(SB),NOSPLIT,$0-28
	MOVD	fd+0(FP), R3
	MOVD	p+8(FP), R4
	MOVW	n+16(FP), R5
	MOVD	$libc_write(SB), R12
	CSYSCALL()
	MOVW	R3, ret+24(FP)
	RET

// Runs on OS stack, called from runtime·pthread_attr_init.
TEXT runtime·pthread_attr_init1(SB),NOSPLIT,$0-12
	MOVD	attr+0(FP), R3

noerr:
	RET

TEXT runtime·write_trampoline(SB),NOSPLIT,$32
	MOVD	8(R3), R4		// arg 2 - buf
	MOVW	16(R3), R5		// arg 3 - count
	MOVD	0(R3), R3		// arg 1 - fd (uintptr)
	CALL	libc_write(SB)
	CMP	R3, $-1
	BNE	noerr
	CALL	libc_errno(SB)
	MOVW	(R3), R3		// errno
	NEG	R3, R3			// caller expects negative errno value
noerr:
	RET

TEXT runtime·pipe2_trampoline(SB),NOSPLIT,$32

noerr:
	RET

TEXT runtime·write_trampoline(SB),NOSPLIT,$0
	MOVD	8(R0), R1		// arg 2 - buf
	MOVW	16(R0), R2		// arg 3 - count
	MOVW	0(R0), R0		// arg 1 - fd
	CALL	libc_write(SB)
	CMP	$-1, R0
	BNE	noerr
	CALL	libc_errno(SB)
	MOVW	(R0), R0		// errno
	NEG	R0, R0			// caller expects negative errno value
noerr:
	RET

TEXT runtime·pipe2_trampoline(SB),NOSPLIT,$0

noerr:
	RET

TEXT runtime·write_trampoline(SB),NOSPLIT,$8
	MOV	8(X10), X11		// arg 2 - buf
	MOVW	16(X10), X12		// arg 3 - count
	MOV	0(X10), X10		// arg 1 - fd (uintptr from write1)
	CALL	libc_write(SB)
	MOV	$-1, X5
	BNE	X5, X10, noerr
	CALL	libc_errno(SB)
	MOVW	(X10), X10		// errno
	NEG	X10			// caller expects negative errno
noerr:
	RET

TEXT runtime·pipe2_trampoline(SB),NOSPLIT,$8

//go:cgo_import_dynamic libc_open open "/usr/lib/libSystem.B.dylib"
//go:cgo_import_dynamic libc_close close "/usr/lib/libSystem.B.dylib"
//go:cgo_import_dynamic libc_read read "/usr/lib/libSystem.B.dylib"
//go:cgo_import_dynamic libc_write write "/usr/lib/libSystem.B.dylib"
//go:cgo_import_dynamic libc_pipe pipe "/usr/lib/libSystem.B.dylib"

//go:cgo_import_dynamic libc_mmap mmap "/usr/lib/libSystem.B.dylib"

noerr:
	RET

TEXT runtime·write_trampoline(SB),NOSPLIT,$0
	MOVQ	8(DI), SI		// arg 2 buf
	MOVL	16(DI), DX		// arg 3 count
	MOVL	0(DI), DI		// arg 1 fd
	CALL	libc_write(SB)
	TESTL	AX, AX
	JGE	noerr
	CALL	libc_errno(SB)
	MOVL	(AX), AX		// errno
	NEGL	AX			// caller expects negative errno value
noerr:
	RET

TEXT runtime·pipe2_trampoline(SB),NOSPLIT,$0