Patch attached here for ARMv7M Exception Handler. [1] Looks like git
send-email didn't deliver the mail. Something is not quite right with
our mail server here. Avoid this email if patch delivered through git.
Thanks and Regards,
Sudarshan
Links:
------
[1] https://lists.rtems.org/pipermail/devel/2015-August/012381.html
From e7674a2c26a3db26e3019f3c6ee94c9ea88d5a3c Mon Sep 17 00:00:00 2001
From: Sudarshan Rajagopalan <sudarshan.rajagopa...@vecna.com>
Date: Thu, 27 Aug 2015 14:19:24 -0400
Subject: [PATCH] Fix exception handler for supporting FPU
---
cpukit/score/cpu/arm/armv7m-exception-default.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/cpukit/score/cpu/arm/armv7m-exception-default.c
b/cpukit/score/cpu/arm/armv7m-exception-default.c
index e890cdf..2ddc6fc 100644
--- a/cpukit/score/cpu/arm/armv7m-exception-default.c
+++ b/cpukit/score/cpu/arm/armv7m-exception-default.c
@@ -28,10 +28,10 @@ void __attribute__((naked)) _ARMV7M_Exception_default( void
)
"mov r2, lr\n"
"mrs r1, msp\n"
"mrs r0, psp\n"
- "cmn r2, #3\n"
- "itt ne\n"
- "movne r0, r1\n"
- "addne r0, %[cpufsz]\n"
+ "tst lr, #4\n"
+ "itt eq\n"
+ "moveq r0, r1\n"
+ "addeq r0, %[cpufsz]\n"
"add r2, r0, %[v7mlroff]\n"
"add r1, sp, %[cpulroff]\n"
"ldm r2, {r3-r5}\n"
--
1.9.1
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