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sys/unix/asm_linux_loong64.s

52 строки
1.2 KiB
ArmAsm
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unix: provide linux/loong64 assembly for syscalls Updates golang/go#46229 Change-Id: I0c0d9224312915fc3b86a0cd4abb344286449909 Reviewed-on: https://go-review.googlesource.com/c/sys/+/399335 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Russ Cox <rsc@golang.org>
2022-04-09 05:44:06 +03:00
// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && loong64 && gc
#include "textflag.h"
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
JAL runtime·entersyscall(SB)
MOVV a1+8(FP), R4
MOVV a2+16(FP), R5
MOVV a3+24(FP), R6
MOVV R0, R7
MOVV R0, R8
MOVV R0, R9
MOVV trap+0(FP), R11 // syscall entry
SYSCALL
MOVV R4, r1+32(FP)
unix: always zero the higher bits of return value on linux/loong64 syscalls All loong64 syscalls return values only via R4/A0, and R5/A1 may contain unrelated content. Always zero the second return value. Change-Id: Ic889f33158c4e4999bd94bd768d1094e95bc6421 Reviewed-on: https://go-review.googlesource.com/c/sys/+/411634 Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: Austin Clements <austin@google.com> Reviewed-by: David Chase <drchase@google.com>
2022-06-10 15:06:09 +03:00
MOVV R0, r2+40(FP) // r2 is not used. Always set to 0
unix: provide linux/loong64 assembly for syscalls Updates golang/go#46229 Change-Id: I0c0d9224312915fc3b86a0cd4abb344286449909 Reviewed-on: https://go-review.googlesource.com/c/sys/+/399335 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Russ Cox <rsc@golang.org>
2022-04-09 05:44:06 +03:00
JAL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
MOVV a1+8(FP), R4
MOVV a2+16(FP), R5
MOVV a3+24(FP), R6
MOVV R0, R7
MOVV R0, R8
MOVV R0, R9
MOVV trap+0(FP), R11 // syscall entry
SYSCALL
MOVV R4, r1+32(FP)
unix: always zero the higher bits of return value on linux/loong64 syscalls All loong64 syscalls return values only via R4/A0, and R5/A1 may contain unrelated content. Always zero the second return value. Change-Id: Ic889f33158c4e4999bd94bd768d1094e95bc6421 Reviewed-on: https://go-review.googlesource.com/c/sys/+/411634 Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: Austin Clements <austin@google.com> Reviewed-by: David Chase <drchase@google.com>
2022-06-10 15:06:09 +03:00
MOVV R0, r2+40(FP) // r2 is not used. Always set to 0
unix: provide linux/loong64 assembly for syscalls Updates golang/go#46229 Change-Id: I0c0d9224312915fc3b86a0cd4abb344286449909 Reviewed-on: https://go-review.googlesource.com/c/sys/+/399335 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Russ Cox <rsc@golang.org>
2022-04-09 05:44:06 +03:00
RET