[syserror] Split usermem package

Split usermem package to help remove syserror dependency in go_marshal.
New hostarch package contains code not dependent on syserror.

PiperOrigin-RevId: 365651233

1 files changed, 5 insertions, 5 deletions

diff --git a/pkg/sentry/arch/signal_stack.go b/pkg/sentry/arch/signal_stack.go
index a1eae98f9..c732c7503 100644
--- a/pkg/sentry/arch/signal_stack.go
+++ b/pkg/sentry/arch/signal_stack.go
@@ -17,8 +17,8 @@
 package arch
 
 import (
+	"gvisor.dev/gvisor/pkg/hostarch"
 	"gvisor.dev/gvisor/pkg/marshal"
-	"gvisor.dev/gvisor/pkg/usermem"
 )
 
 const (
@@ -36,8 +36,8 @@ func (s SignalStack) IsEnabled() bool {
 }
 
 // Top returns the stack's top address.
-func (s SignalStack) Top() usermem.Addr {
-	return usermem.Addr(s.Addr + s.Size)
+func (s SignalStack) Top() hostarch.Addr {
+	return hostarch.Addr(s.Addr + s.Size)
 }
 
 // SetOnStack marks this signal stack as in use.
@@ -49,8 +49,8 @@ func (s *SignalStack) SetOnStack() {
 }
 
 // Contains checks if the stack pointer is within this stack.
-func (s *SignalStack) Contains(sp usermem.Addr) bool {
-	return usermem.Addr(s.Addr) < sp && sp <= usermem.Addr(s.Addr+s.Size)
+func (s *SignalStack) Contains(sp hostarch.Addr) bool {
+	return hostarch.Addr(s.Addr) < sp && sp <= hostarch.Addr(s.Addr+s.Size)
 }
 
 // NativeSignalStack is a type that is equivalent to stack_t in the guest