[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, 6 insertions, 5 deletions

diff --git a/pkg/sentry/time/sampler_unsafe.go b/pkg/sentry/time/sampler_unsafe.go
index e76180217..2ab57c5f8 100644
--- a/pkg/sentry/time/sampler_unsafe.go
+++ b/pkg/sentry/time/sampler_unsafe.go
@@ -15,8 +15,9 @@
 package time
 
 import (
-	"syscall"
 	"unsafe"
+
+	"golang.org/x/sys/unix"
 )
 
 // syscallTSCReferenceClocks is the standard referenceClocks, collecting
@@ -32,8 +33,8 @@ func (syscallTSCReferenceClocks) Sample(c ClockID) (sample, error) {
 	s.before = Rdtsc()
 
 	// Don't call clockGettime to avoid a call which may call morestack.
-	var ts syscall.Timespec
-	_, _, e := syscall.RawSyscall(syscall.SYS_CLOCK_GETTIME, uintptr(c), uintptr(unsafe.Pointer(&ts)), 0)
+	var ts unix.Timespec
+	_, _, e := unix.RawSyscall(unix.SYS_CLOCK_GETTIME, uintptr(c), uintptr(unsafe.Pointer(&ts)), 0)
 	if e != 0 {
 		return sample{}, e
 	}
@@ -46,8 +47,8 @@ func (syscallTSCReferenceClocks) Sample(c ClockID) (sample, error) {
 
 // clockGettime calls SYS_CLOCK_GETTIME, returning time in nanoseconds.
 func clockGettime(c ClockID) (ReferenceNS, error) {
-	var ts syscall.Timespec
-	_, _, e := syscall.RawSyscall(syscall.SYS_CLOCK_GETTIME, uintptr(c), uintptr(unsafe.Pointer(&ts)), 0)
+	var ts unix.Timespec
+	_, _, e := unix.RawSyscall(unix.SYS_CLOCK_GETTIME, uintptr(c), uintptr(unsafe.Pointer(&ts)), 0)
 	if e != 0 {
 		return 0, e
 	}