//go:linkname libc_pthread_self libc_pthread_self
//go:linkname libc_pthread_kill libc_pthread_kill
//go:linkname libc_raise libc_raise
//go:linkname libc_read libc_read
//go:linkname libc_select libc_select
//go:linkname libc_sched_yield libc_sched_yield
//go:linkname libc_sem_init libc_sem_init
//go:linkname libc_sem_post libc_sem_post
//go:linkname libc_sem_reltimedwait_np libc_sem_reltimedwait_np
//go:linkname libc_sem_wait libc_sem_wait

}

//go:cgo_import_dynamic libc_thrsleep __thrsleep "libc.so"
//go:cgo_import_dynamic libc_thrwakeup __thrwakeup "libc.so"
//go:cgo_import_dynamic libc_sched_yield sched_yield "libc.so"

//go:linkname libc_munmap libc_munmap
//go:linkname libc_open libc_open
//go:linkname libc_pipe libc_pipe
//go:linkname libc_raise libc_raise
//go:linkname libc_read libc_read
//go:linkname libc_sched_yield libc_sched_yield
//go:linkname libc_sem_init libc_sem_init
//go:linkname libc_sem_post libc_sem_post
//go:linkname libc_sem_timedwait libc_sem_timedwait
//go:linkname libc_sem_wait libc_sem_wait

//go:cgo_import_dynamic libc_errno __errno "libc.so"
//go:cgo_import_dynamic libc_exit exit "libc.so"
//go:cgo_import_dynamic libc_getthrid getthrid "libc.so"
//go:cgo_import_dynamic libc_sched_yield sched_yield "libc.so"
//go:cgo_import_dynamic libc_thrkill thrkill "libc.so"

//go:cgo_import_dynamic libc_mmap mmap "libc.so"
//go:cgo_import_dynamic libc_munmap munmap "libc.so"

TEXT usleep2<>(SB),NOSPLIT,$0
	LEAQ	libc_usleep(SB), AX
	CALL	AX
	RET

// Runs on OS stack, called from runtime·osyield.
TEXT runtime·osyield1(SB),NOSPLIT,$0
	LEAQ	libc_sched_yield(SB), AX
	CALL	AX

	MOVD	8(R12), R2		\
	MOVD	R0, CTR			\
	BL	(CTR)			\
	MOVD	40(R1), R2		\
	BL runtime·reginit(SB)


// Runs on OS stack, called from runtime·osyield.
TEXT runtime·osyield1(SB),NOSPLIT,$0
	MOVD	$libc_sched_yield(SB), R12
	CSYSCALL()
	RET


// Runs on OS stack, called from runtime·sigprocmask.
TEXT runtime·sigprocmask1(SB),NOSPLIT,$0-24
	MOVD	how+0(FP), R3
	MOVD	new+8(FP), R4
	MOVD	old+16(FP), R5

	MOVD	R3, R14			// pointer to args
	CALL	libc_getpid(SB)		// arg 1 - pid
	MOVW	0(R14), R4		// arg 2 - signal
	CALL	libc_kill(SB)
	RET

TEXT runtime·sched_yield_trampoline(SB),NOSPLIT,$32
	CALL	libc_sched_yield(SB)
	RET

TEXT runtime·mmap_trampoline(SB),NOSPLIT,$32
	MOVD    R3, R14			// pointer to args
	MOVD	0(R14), R3		// arg 1 - addr
	MOVD	8(R14), R4		// arg 2 - len
	MOVW	16(R14), R5		// arg 3 - prot

	MOVD	R0, R19			// pointer to args
	CALL	libc_getpid(SB)		// arg 1 - pid
	MOVW	0(R19), R1		// arg 2 - signal
	CALL	libc_kill(SB)
	RET

TEXT runtime·sched_yield_trampoline(SB),NOSPLIT,$0
	CALL	libc_sched_yield(SB)
	RET

TEXT runtime·mmap_trampoline(SB),NOSPLIT,$0
	MOVD    R0, R19			// pointer to args
	MOVD	0(R19), R0		// arg 1 - addr
	MOVD	8(R19), R1		// arg 2 - len
	MOVW	16(R19), R2		// arg 3 - prot

	MOVL	0(DI), BX	// signal
	CALL	libc_getpid(SB)
	MOVL	AX, DI		// arg 1 pid
	MOVL	BX, SI		// arg 2 signal
	CALL	libc_kill(SB)
	RET

TEXT runtime·sched_yield_trampoline(SB),NOSPLIT,$0
	CALL	libc_sched_yield(SB)
	RET

TEXT runtime·mmap_trampoline(SB),NOSPLIT,$0
	MOVQ	DI, BX
	MOVQ	0(BX), DI		// arg 1 addr
	MOVQ	8(BX), SI		// arg 2 len
	MOVL	16(BX), DX		// arg 3 prot
	MOVL	20(BX), CX		// arg 4 flags

	MOV	X10, X9			// pointer to args
	CALL	libc_getpid(SB)		// arg 1 - pid (result in X10)
	MOVW	0(X9), X11		// arg 2 - signal
	CALL	libc_kill(SB)
	RET

TEXT runtime·sched_yield_trampoline(SB),NOSPLIT,$8
	CALL	libc_sched_yield(SB)
	RET

TEXT runtime·mmap_trampoline(SB),NOSPLIT,$8
	MOV	X10, X9			// pointer to args
	MOV	0(X9), X10		// arg 1 - addr
	MOV	8(X9), X11		// arg 2 - len
	MOVW	16(X9), X12		// arg 3 - prot