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[src/trunk]: src/lib/libc/arch/arm Align sp to 8-byte boundary as required by...
details: https://anonhg.NetBSD.org/src/rev/8a20fd0a3bfb
branches: trunk
changeset: 379993:8a20fd0a3bfb
user: rin <rin%NetBSD.org@localhost>
date: Tue Jun 29 23:29:12 2021 +0000
description:
Align sp to 8-byte boundary as required by EABI.
IIUC, this change only affects libc compiled for ``Thumb-mode userland'',
which we've not officially supported yet.
diffstat:
lib/libc/arch/arm/gen/swapcontext.S | 6 ++++--
lib/libc/arch/arm/sys/__clone.S | 4 +++-
2 files changed, 7 insertions(+), 3 deletions(-)
diffs (47 lines):
diff -r 93b29ec3e2dc -r 8a20fd0a3bfb lib/libc/arch/arm/gen/swapcontext.S
--- a/lib/libc/arch/arm/gen/swapcontext.S Tue Jun 29 23:26:00 2021 +0000
+++ b/lib/libc/arch/arm/gen/swapcontext.S Tue Jun 29 23:29:12 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: swapcontext.S,v 1.15 2018年11月21日 21:01:41 skrll Exp $ */
+/* $NetBSD: swapcontext.S,v 1.16 2021年06月29日 23:29:12 rin Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -33,7 +33,7 @@
#include "assym.h"
#if defined(LIBC_SCCS) && !defined(lint)
- RCSID("$NetBSD: swapcontext.S,v 1.15 2018年11月21日 21:01:41 skrll Exp $")
+ RCSID("$NetBSD: swapcontext.S,v 1.16 2021年06月29日 23:29:12 rin Exp $")
#endif /* LIBC_SCCS && !lint */
ENTRY(swapcontext)
@@ -85,7 +85,9 @@ 1:
b PLT_SYM(_C_LABEL(setcontext))
#else
push {lr}
+ sub sp, #4
bl PLT_SYM(_C_LABEL(setcontext))
+ add sp, #4
pop {pc}
#endif
#if defined(__ARM_EABI__) && defined(__UNWIND_TABLES__)
diff -r 93b29ec3e2dc -r 8a20fd0a3bfb lib/libc/arch/arm/sys/__clone.S
--- a/lib/libc/arch/arm/sys/__clone.S Tue Jun 29 23:26:00 2021 +0000
+++ b/lib/libc/arch/arm/sys/__clone.S Tue Jun 29 23:29:12 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: __clone.S,v 1.9 2013年11月30日 20:20:42 joerg Exp $ */
+/* $NetBSD: __clone.S,v 1.10 2021年06月29日 23:29:12 rin Exp $ */
/*
* Copyright (c) 2001 Christopher Gilbert
@@ -122,7 +122,9 @@ 1:
#else
.Lcerror:
push {lr}
+ sub sp, #4
bl CERROR
+ add sp, #4
pop {pc}
#endif
END(__clone)
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