CTOR Section Problem

[Joel Sherrill]

Hi,

The reported exception with 4.3.0 is a
ctors problem. Something is happening in the
build of crtbegin.o that I haven't gotten
tracked down yet. 

When it works, you have a crtbegin.o with
a .ctors and .dtors section with the 0xffffffff
in it.  When it doesn't they end up in the .data
section. 

I went back to the build trees for 4.2.3 and svn
and saved the preprocessed output for crtbegin
and they were the same.  So I started doing objdumps
on crtbegin.o and found the culprit.

I have been looking at sparc using
rtems-4.9-sparc-rtems4.9-binutils-2.18-3.fc8.
I just did a rebuild of my SVN gcc and the
new crtbegin.o was OK.  The one installed previously
was broken. 

sparc-rtems4.9-objdump -das .../crtbegin.o

For 4.2.x, crtbegin has this
=========================================================
Contents of section .data:
 0000 00000000 00000000 00000000           ............   
Contents of section .ctors:
 0000 ffffffff                             ....           
Contents of section .dtors:
 0000 ffffffff                             ....           
=========================================================

Whe, crtbegin has no .ctors or .dtors sections
and this for .data:
=========================================================
Contents of section .data:
 0000 00000000 ffffffff ffffffff 00000000  ................
=========================================================


I really have no explanation at this point and
until it happens again I can't do much more.

 

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill at OARcorp.com        On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
   Support Available             (256) 722-9985