[RTEMS Project] #2369: [PowerPC Book E] Invalid mftb instruction in _CPU_Counter_read()

RTEMS trac trac at rtems.org
Tue Jul 14 02:00:56 UTC 2015

#2369: [PowerPC Book E] Invalid mftb instruction in _CPU_Counter_read()
 Reporter:  nick.withers  |       Owner:
     Type:  defect        |      Status:  new
 Priority:  normal        |   Milestone:  4.11.1
Component:  General       |     Version:  4.11
 Severity:  normal        |  Resolution:
 Keywords:                |

Comment (by nick.withers):

 Replying to [comment:6 nick.withers]:
 > I seem to have problems with my toolset and can't even get current-
 source-builder-built GDB to talk to my BDI-3000.
 > It looks like SPE might be getting enabled (e.g., *trying* to boot gives
 "Welcome to rtems- (E500/float-
 gprs/SPE)/mvme3100)"), so I'm trying to figure out whether the previous
 GCC 4.9.2 patches definitely made it in to 4.9.3 (would that explain GDB
 not being able to talk to the BDI though?!).

 The patches did indeed make it in.

 4.9.3 GDB works fine talking to my BDI - but only if it's not given the
 (presumably incorrectly-SPE-enabled) binary.

 Any ideas?

Ticket URL: <http://devel.rtems.org/ticket/2369#comment:7>
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