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Sven Luther wrote:
> On Tue, Oct 31, 2006 at 05:09:46PM +0200, Eddy Petrișor wrote:
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>> Sven Luther wrote:
>>> My impression is that d-i loads the full libraries later on, or something
>>> such.
>> AFAIK, this never happens. The reduction is done mainly for the thing
>> not to be too big in the memory while running.
>
> Hi Eddy,
>
> I wonder how the current situation works for .udebs not in the image ? How do
> you find out whose symbols are used by them and know not to strip them ? Is
> this just luck ? I sincerely doubt that.
No, is not luck, just that all udebs which could be used are added to
the pool of binaries which need symbols, AFAICT:
from build/Makefile :
- --------8<----------
ifdef EXTRADRIVERS
# Unpack the udebs of additional driver disks, so mklibs runs on them
too.
dpkg $(DPKG_UNPACK_OPTIONS) --log=/dev/null --root=$(EXTRAUDEBSDIR)
- --unpack \
$(wildcard $(foreach dir,$(EXTRADRIVERS),$(dir)/*.udeb))
endif
ifdef EXTRAUDEBS
# Get and unpack extra udebs too.
get-packages udeb $(EXTRAUDEBS)
dpkg $(DPKG_UNPACK_OPTIONS) --log=/dev/null --root=$(EXTRAUDEBSDIR)
- --unpack \
$(foreach udeb,$(EXTRAUDEBS),$(UDEBDIR)/$(udeb).udeb)
endif
- --------8<----------
>> If you'd want a udeb for gdb, then the library reduction should take
>> into account its dependencies (symbols). This would mean:
>> - - either you make a custom image which uses mklibs-copy (no reduction)
>> and you can use a regular binary or a gdb udeb which contains just the
>> gdb binary (dynamically linked)
>> - - build a custom image with gdb's needed symbols not stripped - but this
>> means that gdb could not be used for regulaly built images.
>
> We need a custom image anyway, since we need a -debug version of the
> binaries we want to debug.
Indeed
- --
Regards,
EddyP
=============================================
"Imagination is more important than knowledge" A.Einstein
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