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[src/netbsd-8]: src Pull up following revision(s) (requested by kamil in tick...
details: https://anonhg.NetBSD.org/src/rev/7dd6c34ba88a
branches: netbsd-8
changeset: 434654:7dd6c34ba88a
user: snj <snj%NetBSD.org@localhost>
date: Sun Feb 25 23:50:22 2018 +0000
description:
Pull up following revision(s) (requested by kamil in ticket #552):
sys/arch/aarch64/include/mcontext.h: 1.2
sys/arch/alpha/include/mcontext.h: 1.9
sys/arch/amd64/include/mcontext.h: 1.19
sys/arch/arm/include/mcontext.h: 1.19
sys/arch/hppa/include/mcontext.h: 1.9
sys/arch/i386/include/mcontext.h: 1.14
sys/arch/ia64/include/mcontext.h: 1.6
sys/arch/m68k/include/mcontext.h: 1.10
sys/arch/mips/include/mcontext.h: 1.22
sys/arch/or1k/include/mcontext.h: 1.2
sys/arch/powerpc/include/mcontext.h: 1.18
sys/arch/riscv/include/mcontext.h: 1.5
sys/arch/sh3/include/mcontext.h: 1.11
sys/arch/sparc/include/mcontext.h: 1.14-1.17
sys/arch/sparc64/include/mcontext.h: 1.10
sys/arch/vax/include/mcontext.h: 1.9
tests/lib/libc/sys/Makefile: 1.50
tests/lib/libc/sys/t_ucontext.c: 1.2
Introduce _UC_MACHINE_FP() as a macro
_UC_MACHINE_FP() is a helper macro to extract from mcontext a frame pointer.
Don't rely on this interface as a compiler might strip frame pointer or
optimize it making this interface unreliable.
For hppa assume a small frame context, for larger frames FP might be located
in a different register (4 instead of 3).
For ia64 there is no strict frame pointer, and registers might rotate.
Reuse 79 following:
./gcc/config/ia64/ia64.h:#define HARD_FRAME_POINTER_REGNUM LOC_REG (79)
Once ia64 will mature, this should be revisited.
A macro can encapsulate a real function for extracting Frame Pointer on
more complex CPUs / ABIs.
For the remaining CPUs, reuse standard register as defined in appropriate ABI.
The direct users of this macro are LLVM and GCC with Sanitizers.
Proposed on tech-userlevel@.
Sponsored by <The NetBSD Foundation>
--
Improve _UC_MACHINE_FP() for SPARC/SPARC64
Introduce a static inline function _uc_machine_fp() that contains improved
caluclation of a frame pointer.
Algorithm:
uptr *stk_ptr;
# if defined (__arch64__)
stk_ptr = (uptr *) (*sp + 2047);
# else
stk_ptr = (uptr *) *sp;
# endif
*bp = stk_ptr[15];
Noted by <mrg>
--
Make _UC_MACHINE_FP() compile again and fix it so that it does not add
the offset twice.
--
fix _UC_MACHINE32_FP() -- use 32 bit pointer value so that [15] is
the right offset. do this by using __greg32_t, which is only in
the sparc64 version, and these are only useful there, so move them.
--
Add new tests in lib/libc/sys/t_ucontext
New tests:
- ucontext_sp
- ucontext_fp
- ucontext_pc
- ucontext_intrv
They test respectively:
- _UC_MACHINE_SP
- _UC_MACHINE_FP
- _UC_MACHINE_PC
- _UC_MACHINE_INTRV
These tests attempt to access and print the values from ucontext, without
interpreting the values.
This is a follow up of the _UC_MACHINE_FP() introduction.
These tests use PRIxREGISTER, and require to be built with -D_KERNTYPES.
Sponsored by <The NetBSD Foundation>
diffstat:
sys/arch/aarch64/include/mcontext.h | 3 +-
sys/arch/alpha/include/mcontext.h | 3 +-
sys/arch/amd64/include/mcontext.h | 3 +-
sys/arch/arm/include/mcontext.h | 3 +-
sys/arch/hppa/include/mcontext.h | 3 +-
sys/arch/i386/include/mcontext.h | 3 +-
sys/arch/ia64/include/mcontext.h | 3 +-
sys/arch/m68k/include/mcontext.h | 3 +-
sys/arch/mips/include/mcontext.h | 3 +-
sys/arch/or1k/include/mcontext.h | 3 +-
sys/arch/powerpc/include/mcontext.h | 3 +-
sys/arch/riscv/include/mcontext.h | 3 +-
sys/arch/sh3/include/mcontext.h | 3 +-
sys/arch/sparc/include/mcontext.h | 20 +++++-----
sys/arch/sparc64/include/mcontext.h | 10 +++-
sys/arch/vax/include/mcontext.h | 3 +-
tests/lib/libc/sys/Makefile | 3 +-
tests/lib/libc/sys/t_ucontext.c | 68 +++++++++++++++++++++++++++++++++++-
18 files changed, 113 insertions(+), 30 deletions(-)
diffs (truncated from 418 to 300 lines):
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/aarch64/include/mcontext.h
--- a/sys/arch/aarch64/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/aarch64/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.1 2014/08/10 05:47:38 matt Exp $ */
+/* $NetBSD: mcontext.h,v 1.1.22.1 2018/02/25 23:50:22 snj Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -106,6 +106,7 @@
#define _UC_TLSBASE 0x00080000 /* see <sys/ucontext.h> */
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_X29])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_X0])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/alpha/include/mcontext.h
--- a/sys/arch/alpha/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/alpha/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.8 2012/09/12 02:00:54 manu Exp $ */
+/* $NetBSD: mcontext.h,v 1.8.32.1 2018/02/25 23:50:22 snj Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -96,6 +96,7 @@
#define _UC_TLSBASE 0x20 /* valid process-unique value in _REG_UNIQUE */
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_S6])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_V0])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/amd64/include/mcontext.h
--- a/sys/arch/amd64/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/amd64/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.18 2014/05/12 22:50:03 uebayasi Exp $ */
+/* $NetBSD: mcontext.h,v 1.18.20.1 2018/02/25 23:50:22 snj Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -68,6 +68,7 @@
/* AMD64 ABI 128-bytes "red zone". */
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_RSP] - 128)
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_RBP])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_RIP])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_RAX])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/arm/include/mcontext.h
--- a/sys/arch/arm/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/arm/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.18 2015/03/24 08:38:29 matt Exp $ */
+/* $NetBSD: mcontext.h,v 1.18.10.1 2018/02/25 23:50:22 snj Exp $ */
/*-
* Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
@@ -110,6 +110,7 @@
#define _UC_MACHINE_PAD 1 /* Padding appended to ucontext_t */
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_R11])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_R0])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/hppa/include/mcontext.h
--- a/sys/arch/hppa/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/hppa/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.8 2014/02/19 13:01:51 skrll Exp $ */
+/* $NetBSD: mcontext.h,v 1.8.22.1 2018/02/25 23:50:22 snj Exp $ */
#ifndef _HPPA_MCONTEXT_H_
#define _HPPA_MCONTEXT_H_
@@ -50,6 +50,7 @@
} mcontext_t;
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[3])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PCOQH])
#define _UC_MACHINE_SET_PC(uc, pc) \
do { \
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/i386/include/mcontext.h
--- a/sys/arch/i386/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/i386/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.12 2014/02/15 22:20:42 dsl Exp $ */
+/* $NetBSD: mcontext.h,v 1.12.22.1 2018/02/25 23:50:22 snj Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -116,6 +116,7 @@
#ifndef _UC_MACHINE_SP
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_UESP])
#endif
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_EBP])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_EIP])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_EAX])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/ia64/include/mcontext.h
--- a/sys/arch/ia64/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/ia64/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.5 2016/08/05 17:01:13 scole Exp $ */
+/* $NetBSD: mcontext.h,v 1.5.8.1 2018/02/25 23:50:23 snj Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -112,6 +112,7 @@
} mcontext_t;
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.mc_special.sp)
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[79])
/* XXX or assembly "mov Rn = ip" or ...? */
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.mc_special.iip)
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/m68k/include/mcontext.h
--- a/sys/arch/m68k/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/m68k/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.9 2011/11/22 15:25:28 joerg Exp $ */
+/* $NetBSD: mcontext.h,v 1.9.42.1 2018/02/25 23:50:23 snj Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -102,6 +102,7 @@
#define _UC_TLSBASE 0x00080000
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_A7])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_A6])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_D0])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/mips/include/mcontext.h
--- a/sys/arch/mips/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/mips/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.21 2015/05/26 02:16:38 matt Exp $ */
+/* $NetBSD: mcontext.h,v 1.21.10.1 2018/02/25 23:50:23 snj Exp $ */
/*-
* Copyright (c) 1999, 2002 The NetBSD Foundation, Inc.
@@ -159,6 +159,7 @@
#define _UC_TLSBASE 0x00040000
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_S8])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_EPC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_V0])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/or1k/include/mcontext.h
--- a/sys/arch/or1k/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/or1k/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.1 2014/09/03 19:34:26 matt Exp $ */
+/* $NetBSD: mcontext.h,v 1.1.12.1 2018/02/25 23:50:23 snj Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -88,6 +88,7 @@
#define _UC_TLSBASE 0x00080000 /* see <sys/ucontext.h> */
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_R2])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_RV])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/powerpc/include/mcontext.h
--- a/sys/arch/powerpc/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/powerpc/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.17 2014/08/12 20:27:10 joerg Exp $ */
+/* $NetBSD: mcontext.h,v 1.17.12.1 2018/02/25 23:50:23 snj Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -133,6 +133,7 @@
#define _UC_TLSBASE 0x00080000 /* thread context valid in R2 */
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_R1])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_R31])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_R3])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/riscv/include/mcontext.h
--- a/sys/arch/riscv/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/riscv/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.4 2015/04/01 21:55:33 matt Exp $ */
+/* $NetBSD: mcontext.h,v 1.4.10.1 2018/02/25 23:50:23 snj Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -118,6 +118,7 @@
#define _UC_TLSBASE 0x00080000 /* see <sys/ucontext.h> */
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_S0])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_RV])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/sh3/include/mcontext.h
--- a/sys/arch/sh3/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/sh3/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.10 2012/09/12 02:00:54 manu Exp $ */
+/* $NetBSD: mcontext.h,v 1.10.32.1 2018/02/25 23:50:23 snj Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -82,6 +82,7 @@
} mcontext_t;
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
+#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_R14])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_R0])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/sparc/include/mcontext.h
--- a/sys/arch/sparc/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/sparc/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.13 2012/09/12 02:00:54 manu Exp $ */
+/* $NetBSD: mcontext.h,v 1.13.32.1 2018/02/25 23:50:23 snj Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -30,11 +30,11 @@
*/
#ifndef _SPARC_MCONTEXT_H_
-#define _SPARC_MCONTEXT_H_
+#define _SPARC_MCONTEXT_H_
-#define _UC_SETSTACK 0x00010000
-#define _UC_CLRSTACK 0x00020000
-#define _UC_TLSBASE 0x00080000
+#define _UC_SETSTACK 0x00010000
+#define _UC_CLRSTACK 0x00020000
+#define _UC_TLSBASE 0x00080000
/*
* Layout of mcontext_t according the System V Application Binary Interface,
@@ -144,13 +144,13 @@
} mcontext_t;
#ifdef __arch64__
-#define _UC_MACHINE_PAD 8 /* Padding appended to ucontext_t */
-#define _UC_MACHINE_SP(uc) (((uc)->uc_mcontext.__gregs[_REG_O6])+0x7ff)
-#define _UC_MACHINE32_PAD 43 /* compat_netbsd32 variant */
-#define _UC_MACHINE32_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_O6])
+#define _UC_MACHINE_PAD 8 /* Padding appended to ucontext_t */
+#define _UC_MACHINE_SP(uc) (((uc)->uc_mcontext.__gregs[_REG_O6]) + 0x7ff)
+#define _UC_MACHINE_FP(uc) (((__greg_t *)_UC_MACHINE_SP(uc))[15])
#else
-#define _UC_MACHINE_PAD 43 /* Padding appended to ucontext_t */
+#define _UC_MACHINE_PAD 43 /* Padding appended to ucontext_t */
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_O6])
+#define _UC_MACHINE_FP(uc) (((__greg_t *)_UC_MACHINE_SP(uc))[15])
#endif
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_O0])
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/sparc64/include/mcontext.h
--- a/sys/arch/sparc64/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/sparc64/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,11 +1,11 @@
-/* $NetBSD: mcontext.h,v 1.9 2012/09/12 02:00:54 manu Exp $ */
+/* $NetBSD: mcontext.h,v 1.9.32.1 2018/02/25 23:50:23 snj Exp $ */
#ifndef _SPARC64_MCONTEXT_H_
-#define _SPARC64_MCONTEXT_H_
+#define _SPARC64_MCONTEXT_H_
#include <sparc/mcontext.h>
-#define _NGREG32 19 /* %psr, pc, npc, %g1-7, %o0-7 */
+#define _NGREG32 19 /* %psr, pc, npc, %g1-7, %o0-7 */
typedef int __greg32_t;
typedef __greg32_t __gregset32_t[_NGREG32];
@@ -76,4 +76,8 @@
#define _UC_CLRSTACK 0x00020000
#define _UC_TLSBASE 0x00080000
+#define _UC_MACHINE32_PAD 43 /* compat_netbsd32 variant */
+#define _UC_MACHINE32_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_O6])
+#define _UC_MACHINE32_FP(uc) (((__greg32_t *)_UC_MACHINE32_SP(uc))[15])
+
#endif /* _SPARC64_MCONTEXT_H_ */
diff -r f360d9024687 -r 7dd6c34ba88a sys/arch/vax/include/mcontext.h
--- a/sys/arch/vax/include/mcontext.h Sun Feb 25 21:01:13 2018 +0000
+++ b/sys/arch/vax/include/mcontext.h Sun Feb 25 23:50:22 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: mcontext.h,v 1.8 2012/02/02 18:32:16 matt Exp $ */
+/* $NetBSD: mcontext.h,v 1.8.40.1 2018/02/25 23:50:23 snj Exp $ */
/*-
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