Your message dated Wed, 04 Apr 2012 16:54:10 -0400
with message-id <[email protected]>
and subject line ppc binutils and strip
has caused the Debian Bug report #210809,
regarding binutils: strip produces unusable binary
to be marked as done.
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--
210809: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=210809
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: binutils
Version: 2.14.90.0.5-0.2
Severity: important
This problem is highly particular to input executable size. Briefly, I can
reproducibly produce a gcl
image on ppc which when stripped cannot correctly build a working maxima.
Leaving the binary unstripped produces
a working maxima.
The details:
compiling gcl-2.6.1-7 on ppc with the default options using gcc-3.3.1
(-mlongcall -O -fomit-frame-pointer)
produces a saved_gcl image of the following size:
-rwxr-xr-x 1 camm Debian 10180411 Sep 13 14:28
/home/camm/gcl-2.6.1/unixport/saved_gcl
GCL uses unexec to create modified images. the Debian package uses this
feature to reset an internal
variable with the following command:
echo "(setq si::*system-directory*
\"/usr/lib/gcl-2.6.1/unixport\")(si::save-system \"saved_gcl\")"
This produces a binary image as follows:
-rwxr-xr-x 1 camm Debian 10184547 Sep 13 14:38
/home/camm/gcl-2.6.1/unixport/saved_gcl
Lastly, when run through dh_strip, the binary is of the following size:
-rwxr-xr-x 1 camm Debian 8256664 Sep 13 14:40
/home/camm/gcl-2.6.1/unixport/saved_gcl
This binary will compile maxima-5.9.0, load the object modules created, and
save a final maxima image binary using unexec.
This binary fails to run at all, with an immediate SEGFALUT on startup.
Changing the GCL compile flags in any way appears to make the problem
disappear. I cannot reproduce the issue using
-g for example in order to get a backtrace in gdb. The image sizes are of
course different with each CFLAG setting change.
I can only surmize that the problem is highly image size specific, or otherwise
highly dependant on image construction
details.
-- System Information:
Debian Release: testing/unstable
Architecture: powerpc
Kernel: Linux voltaire 2.4.20-powerpc-smp #1 SMP ven jun 20 19:16:06 CEST 2003
ppc
Locale: LANG=C, LC_CTYPE=C
Versions of packages binutils depends on:
ii debconf 1.3.8 Debian configuration management sy
ii libc6 2.3.1-17.0.2 GNU C Library: Shared libraries an
-- debconf information:
binutils/oformat_warning:
* binutils/kernel_link_warning:
--- End Message ---
--- Begin Message ---
Greetings! All appears working now with modern binutils. Thanks!
--
Camm Maguire [email protected]
==========================================================================
"The earth is but one country, and mankind its citizens." -- Baha'u'llah
--- End Message ---
