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arm objdump bug?
- From: Joel Sherrill <joel dot sherrill at oarcorp dot com>
- To: "binutils at sourceware dot org" <binutils at sourceware dot org>
- Date: Fri, 25 Sep 2009 08:55:59 -0500
- Subject: arm objdump bug?
Hi,
We are doing object coverage analysis on RTEMS. We
have been spending a lot of time looking at objdumps.
Our program which looks for nops and marks instructions
as not executed got confused when it saw this:
_Context_Switch( &_Thread_BSP_context, &_Thread_Heir->Registers );
f384: ea0015cc b 14abc <_CPU_Context_switch>
f388: 0001fd30 .word 0x0001fd30
f38c: 0001fa84 .word 0x0001fa84
f390: 0001fbd4 .word 0x0001fbd4
f394: 0001f7d8 .word 0x0001f7d8
f398: fbb4 .short 0xfbb4
f39a: 01 .byte 0x01
...
0000f39c <_Thread_Start>:
The sequence of .short, .byte, ... probably should be another
word which with a value of 0x001fbb4.
I don't have the .exe this was generated from anymore and
from many runs, we have only seen this once so far. The
full objdump is here:
http://www.rtems.org/ftp/pub/rtems/people/joel/coverage/edb7312-OsPd-20090924-2046/annotated.dmp
Thanks.
--
Joel Sherrill, Ph.D. Director of Research & Development
joel.sherrill@OARcorp.com On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35805
Support Available (256) 722-9985