[uClibc] ld-uClibc-0.9.26.so segfaults in arm/dl-startup.h PERFORM_BOOTSTRAP_RELOC()

[David Poole]

> On May 7, 2004, at 7:26 AM, David Poole wrote:
>>>
>>> Hmm.  Did you happen to enable FORCE_SHAREABLE_TEXT_SEGMENTS in
>>> your uClibc .config file?
>

Digging into the original segfault, it's a page permission fault from 
pc=0x4000nnnn.

FORCE_SHAREABLE_TEXT_SEGMENTS isn't enabled but the _dl_mprotect() 
calls weren't being made because neither the uclibc ld.so nor my simple 
shared library app have any DT_TEXTREL sections. According to the ARM 
ABI document I have (which may be out of date), DT_TEXTREL is "unused 
by version 1-2 of the ARM EABI."

I removed the check for DT_TEXTREL and the first segfault "goes away". 
I get a new segfault after "Beginning relocation fixups" but at least 
that's progress. Is the DT_TEXTREL thing a clue?

-- 
David Poole <dpoole at mobl.com>
Mobility Electronics, Idaho   http://www.mobl.com
960 Broadway Avenue, Suite 300
Boise, ID  83706