Replace remaining uses of reflection-based marshalling.

- Rewrite arch.Stack.{Push,Pop}. For the most part, stack now
  implements marshal.CopyContext and can be used as the target of
  marshal operations. Stack.Push had some extra logic for
  automatically null-terminating slices. This was only used for two
  specific types of slices, and is now handled explicitly.

- Delete usermem.CopyObject{In,Out}.

- Replace most remaining uses of the encoding/binary package with
  go-marshal. Most of these were using the binary package to compute
  the size of a struct, which go-marshal can directly replace. ~3 uses
  of the binary package remain. These aren't reasonably replaceable by
  go-marshal: for example one use is to construct the syscall
  trampoline for systrap.

- Fill out remaining convenience wrappers in the primitive package.

PiperOrigin-RevId: 334502375

1 files changed, 1 insertions, 0 deletions

diff --git a/pkg/sentry/arch/BUILD b/pkg/sentry/arch/BUILD
index 99e2b3389..4af4d6e84 100644
--- a/pkg/sentry/arch/BUILD
+++ b/pkg/sentry/arch/BUILD
@@ -22,6 +22,7 @@ go_library(
         "signal_info.go",
         "signal_stack.go",
         "stack.go",
+        "stack_unsafe.go",
         "syscalls_amd64.go",
         "syscalls_arm64.go",
     ],