Re: Sources for tracing into standard libraries + apt-get source versioning
On Tue, 2005-04-26 at 13:16 -0700, Ross Boylan wrote:
> I am trying to track down an apparent memory problem and, in a move of
> some desperation, though it might be useful to trace into the source
> where the failure occurs (or is noticed). That's in libc, called from
> libstdc++, as shown in this gdb stack trace
> #0 0x401c02cb in _int_free (av=0x4027e060, mem=0x809e2f8) at
> malloc.c:4209
> #1 0x401bf09f in __libc_free (mem=0x809e298) at malloc.c:3359
> #2 0x400f85b3 in operator delete (ptr=0xc00b3333)
> at ../../../../src/libstdc++-v3/libsupc++/del_op.cc:39
> #3 0x0804e05b in __valarray_release_memory (__p=0x809e298) at
> valarray_array.h:70
>
> I installed the -dbg versions of the relevant libraries, but that gets
> me the symbols, not the code.
>
> How do I get the source that exactly matches the libraries I'm using
> (testing)?
>
> I did
> apt-get -t testing source libc6 libstdc++5
> but am concerned about a couple of things.
>
> First, is this exactly the right version? The version numbers that are
> being downloaded, and that appear in the changelog, differ from those
> shown for my current packages. For example libc6 is 2.3.2.ds1-20, but
> the downloaded source (glibc) is
> Get:3 http://ftp.us.debian.org ../project/experimental/main glibc
> 2.3.5-1 (dsc) [1710B]
>
> Is this an apt-get bug? A misunderstanding on my part of how it's
> supposed to work?
A little of both. Apparently it is considered a missing feature,
already noted (with a patch available, but not applied) in #152129 and a
host of duplicates. -t has no effect on apt-get source, which always
goes for the newest version.
My second question still stands:
> Second, having obtained the packages, how do I get it to construct the
> sources without doing a full build?
>
I guess I also need to figure out how to get the right sources too...
--
Ross Boylan wk: (415) 502-4031
530 Parnassus Avenue (Library) rm 115-4 ross@biostat.ucsf.edu
Dept of Epidemiology and Biostatistics fax: (415) 476-9856
University of California, San Francisco
San Francisco, CA 94143-0840 hm: (415) 550-1062
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