[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

1 files changed, 2 insertions, 2 deletions

diff --git a/pkg/sentry/fs/host/socket_state.go b/pkg/sentry/fs/host/socket_state.go
index 498018f0a..1d3e5298a 100644
--- a/pkg/sentry/fs/host/socket_state.go
+++ b/pkg/sentry/fs/host/socket_state.go
@@ -16,8 +16,8 @@ package host
 
 import (
 	"fmt"
-	"syscall"
 
+	"golang.org/x/sys/unix"
 	"gvisor.dev/gvisor/pkg/fd"
 )
 
@@ -30,7 +30,7 @@ func (c *ConnectedEndpoint) beforeSave() {
 
 // afterLoad is invoked by stateify.
 func (c *ConnectedEndpoint) afterLoad() {
-	f, err := syscall.Dup(c.srfd)
+	f, err := unix.Dup(c.srfd)
 	if err != nil {
 		panic(fmt.Sprintf("failed to dup restored FD %d: %v", c.srfd, err))
 	}