[op] Replace syscall package usage with golang.org/x/sys/unix in pkg/.

The syscall package has been deprecated in favor of golang.org/x/sys.

Note that syscall is still used in the following places:
- pkg/sentry/socket/hostinet/stack.go: some netlink related functionalities
  are not yet available in golang.org/x/sys.
- syscall.Stat_t is still used in some places because os.FileInfo.Sys() still
  returns it and not unix.Stat_t.

Updates #214

PiperOrigin-RevId: 360701387

5 files changed, 10 insertions, 10 deletions

diff --git a/pkg/sentry/fsimpl/fuse/BUILD b/pkg/sentry/fsimpl/fuse/BUILD
index 2158b1bbc..155c0f56d 100644
--- a/pkg/sentry/fsimpl/fuse/BUILD
+++ b/pkg/sentry/fsimpl/fuse/BUILD
@@ -83,5 +83,6 @@ go_test(
         "//pkg/syserror",
         "//pkg/usermem",
         "//pkg/waiter",
+        "@org_golang_x_sys//unix:go_default_library",
     ],
 )
diff --git a/pkg/sentry/fsimpl/fuse/connection_control.go b/pkg/sentry/fsimpl/fuse/connection_control.go
index 4ab894965..948502db6 100644
--- a/pkg/sentry/fsimpl/fuse/connection_control.go
+++ b/pkg/sentry/fsimpl/fuse/connection_control.go
@@ -16,8 +16,8 @@ package fuse
 
 import (
 	"sync/atomic"
-	"syscall"
 
+	"golang.org/x/sys/unix"
 	"gvisor.dev/gvisor/pkg/abi/linux"
 	"gvisor.dev/gvisor/pkg/context"
 	"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
@@ -230,7 +230,7 @@ func (conn *connection) Abort(ctx context.Context) {
 	// sendError() will remove them from `fd.completion` map.
 	// Will enter the path of a normally received error.
 	for _, toTerminate := range terminate {
-		conn.fd.sendError(ctx, -int32(syscall.ECONNABORTED), toTerminate)
+		conn.fd.sendError(ctx, -int32(unix.ECONNABORTED), toTerminate)
 	}
 
 	// 3. The requests not yet written to FUSE device.
diff --git a/pkg/sentry/fsimpl/fuse/connection_test.go b/pkg/sentry/fsimpl/fuse/connection_test.go
index d8b0d7657..78ea6a31e 100644
--- a/pkg/sentry/fsimpl/fuse/connection_test.go
+++ b/pkg/sentry/fsimpl/fuse/connection_test.go
@@ -16,9 +16,9 @@ package fuse
 
 import (
 	"math/rand"
-	"syscall"
 	"testing"
 
+	"golang.org/x/sys/unix"
 	"gvisor.dev/gvisor/pkg/sentry/kernel"
 	"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
 	"gvisor.dev/gvisor/pkg/syserror"
@@ -96,7 +96,7 @@ func TestConnectionAbort(t *testing.T) {
 
 	// Abort will return ECONNABORTED error to unblocked requests.
 	for _, fut := range futNormal {
-		if fut.getResponse().hdr.Error != -int32(syscall.ECONNABORTED) {
+		if fut.getResponse().hdr.Error != -int32(unix.ECONNABORTED) {
 			t.Fatalf("Incorrect error code received for aborted connection: %v", fut.getResponse().hdr.Error)
 		}
 	}
diff --git a/pkg/sentry/fsimpl/fuse/dev.go b/pkg/sentry/fsimpl/fuse/dev.go
index 1bbe6fdb7..1eeb95216 100644
--- a/pkg/sentry/fsimpl/fuse/dev.go
+++ b/pkg/sentry/fsimpl/fuse/dev.go
@@ -15,8 +15,7 @@
 package fuse
 
 import (
-	"syscall"
-
+	"golang.org/x/sys/unix"
 	"gvisor.dev/gvisor/pkg/abi/linux"
 	"gvisor.dev/gvisor/pkg/context"
 	"gvisor.dev/gvisor/pkg/sentry/kernel"
@@ -176,9 +175,9 @@ func (fd *DeviceFD) readLocked(ctx context.Context, dst usermem.IOSequence, opts
 		// The request is too large. Cannot process it. All requests must be smaller than the
 		// negotiated size as specified by Connection.MaxWrite set as part of the FUSE_INIT
 		// handshake.
-		errno := -int32(syscall.EIO)
+		errno := -int32(unix.EIO)
 		if req.hdr.Opcode == linux.FUSE_SETXATTR {
-			errno = -int32(syscall.E2BIG)
+			errno = -int32(unix.E2BIG)
 		}
 
 		// Return the error to the calling task.
diff --git a/pkg/sentry/fsimpl/fuse/request_response.go b/pkg/sentry/fsimpl/fuse/request_response.go
index 41d679358..10fb9d7d2 100644
--- a/pkg/sentry/fsimpl/fuse/request_response.go
+++ b/pkg/sentry/fsimpl/fuse/request_response.go
@@ -16,8 +16,8 @@ package fuse
 
 import (
 	"fmt"
-	"syscall"
 
+	"golang.org/x/sys/unix"
 	"gvisor.dev/gvisor/pkg/abi/linux"
 	"gvisor.dev/gvisor/pkg/marshal"
 	"gvisor.dev/gvisor/pkg/sentry/kernel"
@@ -199,7 +199,7 @@ func (r *Response) Error() error {
 		return nil
 	}
 
-	sysErrNo := syscall.Errno(-errno)
+	sysErrNo := unix.Errno(-errno)
 	return error(sysErrNo)
 }