[rtems commit] Fix exception handler for supporting FPU

[Sebastian Huber]

Module:    rtems
Branch:    4.11
Commit:    5b5ef4e479dbb437b96601e3ef4e5fc508e22dd3
Changeset: http://git.rtems.org/rtems/commit/?id=5b5ef4e479dbb437b96601e3ef4e5fc508e22dd3

Author:    Sudarshan Rajagopalan <sudarshan.rajagopalan at vecna.com>
Date:      Thu Aug 27 14:19:24 2015 -0400

Fix exception handler for supporting FPU

Close #2401.

---

 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"