From: Jan Kiszka <jan.kiszka@siemens.com>
To: Xenomai <xenomai@xenomai.org>
Subject: [PATCH] cobalt/arch/arm: arith: Avoid r7 usage in helpers
Date: Sat, 7 Aug 2021 17:52:28 +0200 [thread overview]
Message-ID: <60deb062-29ca-da10-10d5-2f6e61dcca67@siemens.com> (raw)
From: Jan Kiszka <jan.kiszka@siemens.com>
Since gcc-9, direct usage of r7 is in conflict with compiler
allocations. Skip it.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
.../arch/arm/include/asm/xenomai/uapi/arith.h | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/kernel/cobalt/arch/arm/include/asm/xenomai/uapi/arith.h b/kernel/cobalt/arch/arm/include/asm/xenomai/uapi/arith.h
index cf897b44fa..4d3ae65411 100644
--- a/kernel/cobalt/arch/arm/include/asm/xenomai/uapi/arith.h
+++ b/kernel/cobalt/arch/arm/include/asm/xenomai/uapi/arith.h
@@ -79,9 +79,9 @@ mach_arm_nodiv_ullimd(const unsigned long long op,
register unsigned frach __asm__ ("r3");
register unsigned integ __asm__("r4") = rhs_integ;
register unsigned opl __asm__ ("r6");
- register unsigned oph __asm__ ("r7");
- register unsigned tl __asm__("r8");
- register unsigned th __asm__("r9");
+ register unsigned oph __asm__ ("r8");
+ register unsigned tl __asm__("r9");
+ register unsigned th __asm__("r10");
xnarch_u64tou32(op, oph, opl);
xnarch_u64tou32(frac, frach, fracl);
@@ -109,10 +109,10 @@ mach_arm_nodiv_llimd(const long long op,
register unsigned frach __asm__ ("r3");
register unsigned integ __asm__("r4") = rhs_integ;
register unsigned opl __asm__ ("r6");
- register unsigned oph __asm__ ("r7");
- register unsigned tl __asm__("r8");
- register unsigned th __asm__("r9");
- register unsigned s __asm__("r10");
+ register unsigned oph __asm__ ("r8");
+ register unsigned tl __asm__("r9");
+ register unsigned th __asm__("r10");
+ register unsigned s __asm__("r11");
xnarch_u64tou32(op, oph, opl);
xnarch_u64tou32(frac, frach, fracl);
--
2.31.1
next reply other threads:[~2021-08-07 15:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-07 15:52 Jan Kiszka [this message]
2021-08-09 14:55 ` [PATCH] cobalt/arch/arm: arith: Avoid r7 usage in helpers Jan Kiszka
2021-08-09 15:09 ` Philippe Gerum
2021-08-09 15:11 ` Jan Kiszka
2021-08-09 15:17 ` Jan Kiszka
2021-08-09 16:58 ` Philippe Gerum
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