Re: Sources for tracing into standard libraries + apt-get source versioning

From: Ross Boylan (ross_at_biostat.ucsf.edu)
Date: 04/26/05

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    To: debian-user@lists.debian.org
Date: Tue, 26 Apr 2005 14:48:15 -0700

    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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