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-rw-r--r--pkg/abi/linux/linux_abi_autogen_unsafe.go4
-rw-r--r--pkg/sentry/arch/arch_aarch64.go10
2 files changed, 9 insertions, 5 deletions
diff --git a/pkg/abi/linux/linux_abi_autogen_unsafe.go b/pkg/abi/linux/linux_abi_autogen_unsafe.go
index 10edafcc5..049c283c1 100644
--- a/pkg/abi/linux/linux_abi_autogen_unsafe.go
+++ b/pkg/abi/linux/linux_abi_autogen_unsafe.go
@@ -124,7 +124,7 @@ func (s *Statx) UnmarshalBytes(src []byte) {
// Packed implements marshal.Marshallable.Packed.
//go:nosplit
func (s *Statx) Packed() bool {
- return s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed()
+ return s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() && s.Btime.Packed()
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
@@ -204,7 +204,7 @@ func (s *Statx) CopyIn(task marshal.Task, addr usermem.Addr) (int, error) {
// WriteTo implements io.WriterTo.WriteTo.
func (s *Statx) WriteTo(w io.Writer) (int64, error) {
- if !s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() && s.Atime.Packed() {
+ if !s.Atime.Packed() && s.Btime.Packed() && s.Ctime.Packed() && s.Mtime.Packed() {
// Type Statx doesn't have a packed layout in memory, fall back to MarshalBytes.
buf := make([]byte, s.SizeBytes())
s.MarshalBytes(buf)
diff --git a/pkg/sentry/arch/arch_aarch64.go b/pkg/sentry/arch/arch_aarch64.go
index 343f81f59..daba8b172 100644
--- a/pkg/sentry/arch/arch_aarch64.go
+++ b/pkg/sentry/arch/arch_aarch64.go
@@ -17,7 +17,6 @@
package arch
import (
- "encoding/binary"
"fmt"
"io"
@@ -49,9 +48,14 @@ const ARMTrapFlag = uint64(1) << 21
type aarch64FPState []byte
// initAarch64FPState sets up initial state.
+//
+// Related code in Linux kernel: fpsimd_flush_thread().
+// FPCR = FPCR_RM_RN (0x0 << 22).
+//
+// Currently, aarch64FPState is only a space of 0x210 length for fpstate.
+// The fp head is useless in sentry/ptrace/kvm.
+//
func initAarch64FPState(data aarch64FPState) {
- binary.LittleEndian.PutUint32(data, fpsimdMagic)
- binary.LittleEndian.PutUint32(data[4:], fpsimdContextSize)
}
func newAarch64FPStateSlice() []byte {