Re: fakeroot: log open() calls?

[Fabrizio Polacco <fab@prosa.it>]

On Thu, Nov 11, 1999 at 11:11:45AM +0000, Julian Gilbey wrote:
> 
> How easy would it be for fakeroot/faked to log all successful calls
> to open(), so that a command such as:
> 
>   dpkg-buildpackage -r'fakeroot --log ../open.log'
> 
> will create a log of all successful open() calls.  For then one
> could do something like
> 
>   dpkg -S `<extract filenames from open.log> | grep ^/ | sort | uniq` | \
>     cut -d: -f1 | sort | uniq
> 
> to get a list of all packages used during the build.  In this way,
> creation of the Build-Depends/Build-Depends-Indep lists could
> initially be created automatically, requiring the developer only to
> deal with details such as version numbers where applicable.

Without modification on any existing program, I got the result using the long
pipes that I attach below (broken into three for sake of readability).
the output of strace should also be sent to a named pipe, to avoid creation of
huge temp files.  

My idea was to add this _inside_ dpkg-buildpackage, maybe enabling it by use of
a new option flag.

It slows down compilation a lot, so maybe tailoring strace to the intent would
be profitable.

The last command of the pipe is dpkg -l , which produces the human readable
output you see in this example. It should be substituted with some command to
grep away essential packages and pack the rest in the new format for the
Source-dependecies field.

cheers,
fab
-- 

---------------------------------------------------------------cut--------
sudo strace -f -etrace=file -o ../trace.69i -q -a80 debian/rules binary 2>&1 | \
        tee ../log.69i

cat ../trace.69i | grep -v ' = -1 ' | awk -F\" '{ print $2 }' | grep -v '^/tmp/' | \
        grep -v '^/dev/' | grep '^/' | grep -v "^$PWD" | grep -v '/var/lib/dpkg' | \
        sort -u >../trace.filt.69i

for j in `cat ../trace.filt.69i`;do test -f $j && realpath $j;done | \
        xargs dpkg -S 2>/dev/null | awk -F: '{ print $1 }' | sort -u | xargs dpkg -l

Desired=Unknown/Install/Remove/Purge
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name            Version        Description
+++-===============-==============-============================================
ii  autoconf        2.12-13        automatic configure script builder.
ii  base-files      2.1.0          Debian Base System Miscellaneous Files
ii  bash            2.01.1-4.1     The GNU Bourne Again SHell
ii  binutils        2.9.1.0.19a-2  The GNU assembler, linker and binary utiliti
ii  bsdmainutils    4.4.0.1        More utilities from 4.4BSD-Lite.
ii  cpp             2.7.2.3-7      The GNU C preprocessor.
ii  debianutils     1.10           Miscellaneous utilities specific to Debian.
ii  diff            2.7-18         File comparison utilities
ii  dpkg            1.4.0.34       Package maintenance system for Debian Linux
ii  dpkg-dev        1.4.0.34       Package building tools for Debian Linux
ii  exuberant-ctags 2.3.2-1        Reincarnation of the classic ctags(1): facil
ii  fileutils       3.16-5.3       GNU file management utilities.
ii  findutils       4.1-33         utilities for finding files--find, xargs, an
ii  flex            2.5.4a-3       A fast lexical analyzer generator.
ii  gcc             2.7.2.3-7      The GNU C compiler.
ii  gettext         0.10.35-7      GNU Internationalization utilities
ii  grep            2.2-1          GNU grep, egrep and fgrep.
ii  groff           1.11a-7        GNU troff text-formatting system.
ii  gzip            1.2.4-28       The GNU compression utility.
ii  hostname        2.04           A utility to set/show the host name or domai
ii  ldso            1.9.10-1       The Linux dynamic linker, library and utilit
ii  less            332-4.1        A file pager program, similar to more(1)
ii  libc6           2.0.7.19981211 GNU C Library: shared libraries
ii  libc6-dev       2.0.7.19981211 GNU C Library: Development libraries and hea
ii  libdb2          2.4.14-5       The Berkeley database routines (run-time fil
ii  libdb2-dev      2.4.14-5       The Berkeley database routines (development
ii  libgdbmg1       1.7.3-25       GNU dbm database routines (runtime version).
ii  libncurses4     4.2-3          Shared libraries for terminal handling
ii  libreadlineg2   2.1-12         GNU readline and history libraries, run-time
ii  libstdc++2.9    2.91.60-5      The GNU stdc++ library (egcs version)
ii  locales         2.0.7.19981211 GNU C Library: National Language (locale) da
ii  m4              1.4-9          a macro processing language
ii  make            3.77-4         The GNU version of the "make" utility.
ii  mawk            1.3.3-2        a pattern scanning and text processing langu
ii  perl            5.004.04-7     Larry Wall's Practical Extracting and Report
ii  perl-base       5.004.04-7     The Pathologically Eclectic Rubbish Lister
ii  sed             3.02-1         The GNU sed stream editor.
ii  shellutils      1.16-6.3       The GNU shell programming utilities.
ii  tar             1.12-7         GNU tar
ii  textutils       1.22-2.4       The GNU text file processing utilities.
ii  timezones       2.0.7.19981211 GNU C Library: Timezone data and utilities
---------------------------------------------------------------cut--------

-- 
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| fabrizio.polacco@nokia.com                  gsm: +358 (0)40 707 2468