diff options
| -rw-r--r-- | pkg/tcpip/link/fdbased/BUILD | 4 | ||||
| -rw-r--r-- | pkg/tcpip/link/fdbased/mmap.go (renamed from pkg/tcpip/link/fdbased/mmap_amd64.go) | 2 | ||||
| -rw-r--r-- | pkg/tcpip/link/fdbased/mmap_stub.go | 4 | ||||
| -rw-r--r-- | pkg/tcpip/link/fdbased/mmap_unsafe.go (renamed from pkg/tcpip/link/fdbased/mmap_amd64_unsafe.go) | 2 | ||||
| -rw-r--r-- | pkg/tcpip/link/rawfile/BUILD | 3 | ||||
| -rw-r--r-- | pkg/tcpip/link/rawfile/blockingpoll_arm64.s | 42 | ||||
| -rw-r--r-- | pkg/tcpip/link/rawfile/blockingpoll_stub_unsafe.go | 4 | ||||
| -rw-r--r-- | pkg/tcpip/link/rawfile/blockingpoll_unsafe.go (renamed from pkg/tcpip/link/rawfile/blockingpoll_amd64_unsafe.go) | 2 |
8 files changed, 53 insertions, 10 deletions
diff --git a/pkg/tcpip/link/fdbased/BUILD b/pkg/tcpip/link/fdbased/BUILD index d31c815b5..74fbbb896 100644 --- a/pkg/tcpip/link/fdbased/BUILD +++ b/pkg/tcpip/link/fdbased/BUILD @@ -7,9 +7,9 @@ go_library( srcs = [ "endpoint.go", "endpoint_unsafe.go", - "mmap_amd64.go", - "mmap_amd64_unsafe.go", + "mmap.go", "mmap_stub.go", + "mmap_unsafe.go", "packet_dispatchers.go", ], importpath = "gvisor.dev/gvisor/pkg/tcpip/link/fdbased", diff --git a/pkg/tcpip/link/fdbased/mmap_amd64.go b/pkg/tcpip/link/fdbased/mmap.go index 029f86a18..8bfeb97e4 100644 --- a/pkg/tcpip/link/fdbased/mmap_amd64.go +++ b/pkg/tcpip/link/fdbased/mmap.go @@ -12,7 +12,7 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build linux,amd64 +// +build linux,amd64 linux,arm64 package fdbased diff --git a/pkg/tcpip/link/fdbased/mmap_stub.go b/pkg/tcpip/link/fdbased/mmap_stub.go index 2dca173c2..67be52d67 100644 --- a/pkg/tcpip/link/fdbased/mmap_stub.go +++ b/pkg/tcpip/link/fdbased/mmap_stub.go @@ -12,11 +12,11 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build !linux !amd64 +// +build !linux !amd64,!arm64 package fdbased -// Stubbed out version for non-linux/non-amd64 platforms. +// Stubbed out version for non-linux/non-amd64/non-arm64 platforms. func newPacketMMapDispatcher(fd int, e *endpoint) (linkDispatcher, error) { return nil, nil diff --git a/pkg/tcpip/link/fdbased/mmap_amd64_unsafe.go b/pkg/tcpip/link/fdbased/mmap_unsafe.go index 47cb1d1cc..3894185ae 100644 --- a/pkg/tcpip/link/fdbased/mmap_amd64_unsafe.go +++ b/pkg/tcpip/link/fdbased/mmap_unsafe.go @@ -12,7 +12,7 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build linux,amd64 +// +build linux,amd64 linux,arm64 package fdbased diff --git a/pkg/tcpip/link/rawfile/BUILD b/pkg/tcpip/link/rawfile/BUILD index 58aee1a7b..11ba31ca4 100644 --- a/pkg/tcpip/link/rawfile/BUILD +++ b/pkg/tcpip/link/rawfile/BUILD @@ -6,7 +6,8 @@ go_library( name = "rawfile", srcs = [ "blockingpoll_amd64.s", - "blockingpoll_amd64_unsafe.go", + "blockingpoll_arm64.s", + "blockingpoll_unsafe.go", "blockingpoll_stub_unsafe.go", "errors.go", "rawfile_unsafe.go", diff --git a/pkg/tcpip/link/rawfile/blockingpoll_arm64.s b/pkg/tcpip/link/rawfile/blockingpoll_arm64.s new file mode 100644 index 000000000..0bc873a01 --- /dev/null +++ b/pkg/tcpip/link/rawfile/blockingpoll_arm64.s @@ -0,0 +1,42 @@ +// Copyright 2019 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "textflag.h" + +// BlockingPoll makes the ppoll() syscall while calling the version of +// entersyscall that relinquishes the P so that other Gs can run. This is meant +// to be called in cases when the syscall is expected to block. +// +// func BlockingPoll(fds *PollEvent, nfds int, timeout *syscall.Timespec) (n int, err syscall.Errno) +TEXT ·BlockingPoll(SB),NOSPLIT,$0-40 + BL ·callEntersyscallblock(SB) + MOVD fds+0(FP), R0 + MOVD nfds+8(FP), R1 + MOVD timeout+16(FP), R2 + MOVD $0x0, R3 // sigmask parameter which isn't used here + MOVD $0x49, R8 // SYS_PPOLL + SVC + CMP $0xfffffffffffff001, R0 + BLS ok + MOVD $-1, R1 + MOVD R1, n+24(FP) + NEG R0, R0 + MOVD R0, err+32(FP) + BL ·callExitsyscall(SB) + RET +ok: + MOVD R0, n+24(FP) + MOVD $0, err+32(FP) + BL ·callExitsyscall(SB) + RET diff --git a/pkg/tcpip/link/rawfile/blockingpoll_stub_unsafe.go b/pkg/tcpip/link/rawfile/blockingpoll_stub_unsafe.go index 84dc0e918..621ab8d29 100644 --- a/pkg/tcpip/link/rawfile/blockingpoll_stub_unsafe.go +++ b/pkg/tcpip/link/rawfile/blockingpoll_stub_unsafe.go @@ -12,7 +12,7 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build linux,!amd64 +// +build linux,!amd64,!arm64 package rawfile @@ -22,7 +22,7 @@ import ( ) // BlockingPoll is just a stub function that forwards to the ppoll() system call -// on non-amd64 platforms. +// on non-amd64 and non-arm64 platforms. func BlockingPoll(fds *PollEvent, nfds int, timeout *syscall.Timespec) (int, syscall.Errno) { n, _, e := syscall.Syscall6(syscall.SYS_PPOLL, uintptr(unsafe.Pointer(fds)), uintptr(nfds), uintptr(unsafe.Pointer(timeout)), 0, 0, 0) diff --git a/pkg/tcpip/link/rawfile/blockingpoll_amd64_unsafe.go b/pkg/tcpip/link/rawfile/blockingpoll_unsafe.go index 47039a446..eeca47d78 100644 --- a/pkg/tcpip/link/rawfile/blockingpoll_amd64_unsafe.go +++ b/pkg/tcpip/link/rawfile/blockingpoll_unsafe.go @@ -12,7 +12,7 @@ // See the License for the specific language governing permissions and // limitations under the License. -// +build linux,amd64 +// +build linux,amd64 linux,arm64 // +build go1.12 // +build !go1.14 |