[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, 4 insertions, 3 deletions

diff --git a/pkg/sentry/pgalloc/pgalloc_unsafe.go b/pkg/sentry/pgalloc/pgalloc_unsafe.go
index a4b5d581c..71f8f66c1 100644
--- a/pkg/sentry/pgalloc/pgalloc_unsafe.go
+++ b/pkg/sentry/pgalloc/pgalloc_unsafe.go
@@ -16,8 +16,9 @@ package pgalloc
 
 import (
 	"reflect"
-	"syscall"
 	"unsafe"
+
+	"golang.org/x/sys/unix"
 )
 
 func unsafeSlice(addr uintptr, length int) (slice []byte) {
@@ -29,8 +30,8 @@ func unsafeSlice(addr uintptr, length int) (slice []byte) {
 }
 
 func mincore(s []byte, buf []byte) error {
-	if _, _, errno := syscall.RawSyscall(
-		syscall.SYS_MINCORE,
+	if _, _, errno := unix.RawSyscall(
+		unix.SYS_MINCORE,
 		uintptr(unsafe.Pointer(&s[0])),
 		uintptr(len(s)),
 		uintptr(unsafe.Pointer(&buf[0]))); errno != 0 {