The fp_ex_[st]w struct savefpu members were inherited from NetBSD where

they're used in the 32bit-compat support, which we dropped years ago.
Bye bye!

ok deraadt@

diff --git a/sys/arch/amd64/amd64/fpu.c b/sys/arch/amd64/amd64/fpu.c
index 438de25..b1a7192 100644 (file)
--- a/sys/arch/amd64/amd64/fpu.c
+++ b/sys/arch/amd64/amd64/fpu.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: fpu.c,v 1.43 2022/08/07 23:56:06 guenther Exp $       */
+/*     $OpenBSD: fpu.c,v 1.44 2023/05/22 00:39:57 guenther Exp $       */
 /*     $NetBSD: fpu.c,v 1.1 2003/04/26 18:39:28 fvdl Exp $     */
 
 /*-
@@ -116,8 +116,6 @@ fputrap(int type)
                fwait();
                statbits = sfp->fp_fxsave.fx_fsw;
        }
-       sfp->fp_ex_tw = sfp->fp_fxsave.fx_ftw;
-       sfp->fp_ex_sw = sfp->fp_fxsave.fx_fsw;
        return x86fpflags_to_siginfo(statbits);
 }
 

diff --git a/sys/arch/amd64/include/fpu.h b/sys/arch/amd64/include/fpu.h
index 7ed0a73..6f05c9e 100644 (file)
--- a/sys/arch/amd64/include/fpu.h
+++ b/sys/arch/amd64/include/fpu.h
@@ -1,4 +1,4 @@
-/*     $OpenBSD: fpu.h,v 1.17 2019/11/29 22:34:09 mortimer Exp $       */
+/*     $OpenBSD: fpu.h,v 1.18 2023/05/22 00:39:57 guenther Exp $       */
 /*     $NetBSD: fpu.h,v 1.1 2003/04/26 18:39:40 fvdl Exp $     */
 
 #ifndef        _MACHINE_FPU_H_
@@ -40,8 +40,6 @@ struct savefpu {
        struct fxsave64 fp_fxsave;      /* see above */
        struct xstate_hdr fp_xstate;
        u_int64_t fp_ymm[16][2];
-       u_int16_t fp_ex_sw;             /* saved status from last exception */
-       u_int16_t fp_ex_tw;             /* saved tag from last exception */
 };
 
 /*