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[src/trunk]: src/sys/arch/arm Use the stack provided by armv6_start.S rather ...
details: https://anonhg.NetBSD.org/src/rev/4716a605e08e
branches: trunk
changeset: 1011737:4716a605e08e
user: skrll <skrll%NetBSD.org@localhost>
date: Wed Jul 08 10:17:59 2020 +0000
description:
Use the stack provided by armv6_start.S rather than svcstk. This saves
some bss too.
diffstat:
sys/arch/arm/arm/armv6_start.S | 4 +++-
sys/arch/arm/arm32/genassym.cf | 8 ++++++--
sys/arch/arm/arm32/locore.S | 10 ++++++++--
3 files changed, 17 insertions(+), 5 deletions(-)
diffs (92 lines):
diff -r 1f21c6853758 -r 4716a605e08e sys/arch/arm/arm/armv6_start.S
--- a/sys/arch/arm/arm/armv6_start.S Wed Jul 08 10:04:20 2020 +0000
+++ b/sys/arch/arm/arm/armv6_start.S Wed Jul 08 10:17:59 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: armv6_start.S,v 1.17 2020/07/03 06:15:27 skrll Exp $ */
+/* $NetBSD: armv6_start.S,v 1.18 2020/07/08 10:17:59 skrll Exp $ */
/*-
* Copyright (c) 2012, 2017, 2018 The NetBSD Foundation, Inc.
@@ -230,6 +230,8 @@
*/
.section "_init_memory", "aw", %nobits
.p2align INIT_ARM_STACK_SHIFT
+ .global start_stacks_bottom
+ .global start_stacks_top
start_stacks_bottom:
.space INIT_ARM_STACK_SIZE * MAXCPUS
start_stacks_top:
diff -r 1f21c6853758 -r 4716a605e08e sys/arch/arm/arm32/genassym.cf
--- a/sys/arch/arm/arm32/genassym.cf Wed Jul 08 10:04:20 2020 +0000
+++ b/sys/arch/arm/arm32/genassym.cf Wed Jul 08 10:17:59 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: genassym.cf,v 1.92 2020/07/08 10:04:20 skrll Exp $
+# $NetBSD: genassym.cf,v 1.93 2020/07/08 10:18:00 skrll Exp $
# Copyright (c) 1982, 1990 The Regents of the University of California.
# All rights reserved.
@@ -31,7 +31,7 @@
# SUCH DAMAGE.
if defined(_KERNEL_OPT)
-include "opt_compat_netbsd.h"
+include "opt_arm_start.h"
include "opt_execfmt.h"
include "opt_multiprocessor.h"
endif
@@ -73,6 +73,10 @@
define __HAVE_FAST_SOFTINTS 1
endif
+ifdef __HAVE_GENERIC_START
+define __HAVE_GENERIC_START 1
+endif
+
ifdef __HAVE_MM_MD_DIRECT_MAPPED_PHYS
define __HAVE_MM_MD_DIRECT_MAPPED_PHYS 1
endif
diff -r 1f21c6853758 -r 4716a605e08e sys/arch/arm/arm32/locore.S
--- a/sys/arch/arm/arm32/locore.S Wed Jul 08 10:04:20 2020 +0000
+++ b/sys/arch/arm/arm32/locore.S Wed Jul 08 10:17:59 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: locore.S,v 1.40 2019/07/14 09:29:21 skrll Exp $ */
+/* $NetBSD: locore.S,v 1.41 2020/07/08 10:18:00 skrll Exp $ */
/*
* Copyright (C) 1994-1997 Mark Brinicombe
@@ -43,7 +43,7 @@
/* What size should this really be ? It is only used by init_arm() */
#define INIT_ARM_STACK_SIZE 2048
- RCSID("$NetBSD: locore.S,v 1.40 2019/07/14 09:29:21 skrll Exp $")
+ RCSID("$NetBSD: locore.S,v 1.41 2020/07/08 10:18:00 skrll Exp $")
/*
* This is for kvm_mkdb, and should be the address of the beginning
@@ -121,13 +121,18 @@
#else
.word _C_LABEL(cpu_info_store)
#endif
+#if !defined(__HAVE_GENERIC_START)
.word svcstk_end
+#else
+ .word start_stacks_top
+#endif
.Lmainreturned:
.asciz "main() returned"
.align 0
ASEND(start)
+#if !defined(__HAVE_GENERIC_START)
.bss
#ifdef __ARM_EABI__
.align 3
@@ -135,6 +140,7 @@
svcstk:
.space INIT_ARM_STACK_SIZE
svcstk_end:
+#endif
.text
.align 0
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