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-rw-r--r--sys/x86/include/frame.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/x86/include/frame.h b/sys/x86/include/frame.h
index 9574e8c0ed02..994e19b979fc 100644
--- a/sys/x86/include/frame.h
+++ b/sys/x86/include/frame.h
@@ -152,6 +152,7 @@ struct trapframe {
#define TF_HASSEGS 0x1
#define TF_HASBASES 0x2
#define TF_HASFPXSTATE 0x4
+#define TF_RESERV0 0x8 /* no tlsbase in the trapframe */
#endif /* __amd64__ */
#endif /* _MACHINE_FRAME_H_ */