[Nix-dev] GCC in pkgs.buildEnv.paths

Kirill Elagin kirelagin at gmail.com
Tue Jun 10 16:27:13 CEST 2014 

Is this thread dead?
I'd really love to know what's going on here.


--
Кирилл Елагин


On Sun, May 25, 2014 at 6:27 PM, Kirill Elagin <kirelagin at gmail.com> wrote:

> I just thought that minimising the testcase might be a good idea.
> Simply having
>
> ~~~~
>   packageOverrides = pkgs_: with pkgs_; {
>     testgcc2 = pkgs_.gcc;
>   };
> ~~~~
>
> is already enough to reproduce the issue:
>
> ~~~~
> % nix-instantiate '<nixpkgs>' -A gcc
> warning: you did not specify `--add-root'; the result might be removed by
> the garbage collector
> /nix/store/993glmz6hxbld0ry81jwv7c3z7cgaz68-gcc-wrapper-4.8.2.drv
>
> % nix-instantiate '<nixpkgs>' -A testgcc2
> warning: you did not specify `--add-root'; the result might be removed by
> the garbage collector
> /nix/store/41nacbfpr8jzsk3k03jjlqb2r2xis5gf-gcc-wrapper-4.8.2.drv
> ~~~~
>
>
> --
> Кирилл Елагин
>
>
> On Sun, May 25, 2014 at 12:12 PM, Kirill Elagin <kirelagin at gmail.com>
> wrote:
>
>> Here is what I see (this is a diff of references of gccWrapper for gcc
>> vs. testgcc):
>>
>> ~~~~~~~~~~~~~~~~~
>>  /nix/store/x0ml8lx5220diw4iplia8ry240smb4vl-add-flags
>>  /nix/store/2gff5jccdfr4z21yxnfrjjwcq3vpr1wi-bash-4.2-p45.drv
>> +/nix/store/cz26wrhr8ddk09yffy67xjsaz339byj2-bash-4.2-p45.drv     <------
>> second bash, WUT??
>> -/nix/store/yykyb9sf6axlm78f4apk0mabicnv8mnr-binutils-2.23.1.drv
>> +/nix/store/7z26jxbwkc5hx9gwrj47dhcpfxwg5b67-binutils-2.23.1.drv
>> -/nix/store/xirq1m6mi5lw61v33mnv3j13hy9bwnwx-bootstrap-tools.drv
>> <------ gone
>>  /nix/store/gj4rbkipgzw4ss82my8m6lnaxdm85b3i-builder.sh
>> -/nix/store/qi7wdh1qyvd58ip61dn8d58v2awagbhj-coreutils-8.21.drv
>> +/nix/store/q8ng53dv1lccmg4a2jcj8540ifszi65j-coreutils-8.21.drv
>> -/nix/store/8hwk0axdnf9c2d61fzs3cn54m2d543y9-gcc-4.8.2.drv
>> +/nix/store/5ncp7pw6nc3yhxny8mfks17jngxz9qns-gcc-4.8.2.drv
>>  /nix/store/5w5cjjrdyhn5a1ph7bia4z05gbar1fpm-gcc-wrapper.sh
>> -/nix/store/cn5p5k04np1v3vpqimgx2f8012wv2ljw-glibc-2.19.drv
>> +/nix/store/38aab2xbj5vpk09c218rdz4jy8xfgjs9-glibc-2.19.drv
>>  /nix/store/rjs81x48ala9iafn8nki9xklzihd69as-gnatlink-wrapper.sh
>>  /nix/store/jh6njrxyaxdsh9i2gfv543bkbamp5ccm-gnat-wrapper.sh
>>  /nix/store/z6075iacwfl1bmsmg2q712ccvj370zp0-ld-solaris-wrapper.sh
>>  /nix/store/jj68gnbzcsyr59p0074zh5znx54022w4-ld-wrapper.sh
>>  /nix/store/v6na0qqb5jcas6av4w7ialplw8h0rwl9-setup-hook.sh
>> -/nix/store/884c7h4gi7xf2vpyfp1lybqxvkf644m8-stdenv-linux-boot.drv
>> +/nix/store/kyai48rvwcaynnp0qywcg89yp0l5dzrq-stdenv.drv
>>  /nix/store/zcw8i26jh4gvyq74g2g9w6ixh7rprph0-utils.sh
>> +/nix/store/f3ssylga2wkh9k3bydmaajzz6wifms2w-zlib-1.2.8.drv     <-------
>> hey, who are you?
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> I didn't know how to diff .drvs either, so I used a command like
>>
>> ~~~~
>> nix-store -q --references <path_to_drv_in_store> | sort -t - -k2
>> ~~~~
>>
>> to produce a list of references sorted by derivation name. Then `diff`
>> plus some hand-juggling to make the diff look nicer.
>>
>>
>> --
>> Кирилл Елагин
>>
>>
>> On Sun, May 25, 2014 at 11:51 AM, Pavel Chuprikov <pschuprikov at gmail.com>
>> wrote:
>>
>>> Hi,
>>>   I didn't know how to diff .drv, so I converted them using ad-hoc
>>> python script.
>>>
>>> --
>>> Pavel
>>>
>>>
>>> On Sun, May 25, 2014 at 11:27 AM, Pavel Chuprikov <pschuprikov at gmail.com
>>> > wrote:
>>>
>>>> Hi,
>>>>
>>>> I've compared derivations of gcc-wrappers and here what I got:
>>>>
>>>> pkgs.gcc vs pkgs.testgcc
>>>> ~~~~~~~~~~~~~~~~
>>>> 1c1
>>>> < ('out',
>>>> '/nix/store/agf8fk4xj2aqr3jccfcypqsmvkz3smn8-gcc-wrapper-4.8.2', '', '')
>>>> ---
>>>> > ('out',
>>>> '/nix/store/nxzf150liimxqdz0f105kg5vsbcd9c75-gcc-wrapper-4.8.2', '', '')
>>>> 3,8c3,9
>>>> < ('/nix/store/884c7h4gi7xf2vpyfp1lybqxvkf644m8-stdenv-linux-boot.drv',
>>>> ['out'])
>>>> < ('/nix/store/8hwk0axdnf9c2d61fzs3cn54m2d543y9-gcc-4.8.2.drv', ['out'])
>>>> < ('/nix/store/cn5p5k04np1v3vpqimgx2f8012wv2ljw-glibc-2.19.drv',
>>>> ['out'])
>>>> < ('/nix/store/qi7wdh1qyvd58ip61dn8d58v2awagbhj-coreutils-8.21.drv',
>>>> ['out'])
>>>> < ('/nix/store/xirq1m6mi5lw61v33mnv3j13hy9bwnwx-bootstrap-tools.drv',
>>>> ['out'])
>>>> < ('/nix/store/yykyb9sf6axlm78f4apk0mabicnv8mnr-binutils-2.23.1.drv',
>>>> ['out'])
>>>> ---
>>>> > ('/nix/store/38aab2xbj5vpk09c218rdz4jy8xfgjs9-glibc-2.19.drv',
>>>> ['out'])
>>>> > ('/nix/store/5ncp7pw6nc3yhxny8mfks17jngxz9qns-gcc-4.8.2.drv', ['out'])
>>>> > ('/nix/store/7z26jxbwkc5hx9gwrj47dhcpfxwg5b67-binutils-2.23.1.drv',
>>>> ['out'])
>>>> > ('/nix/store/cz26wrhr8ddk09yffy67xjsaz339byj2-bash-4.2-p45.drv',
>>>> ['out'])
>>>> > ('/nix/store/f3ssylga2wkh9k3bydmaajzz6wifms2w-zlib-1.2.8.drv',
>>>> ['out'])
>>>> > ('/nix/store/kyai48rvwcaynnp0qywcg89yp0l5dzrq-stdenv.drv', ['out'])
>>>> > ('/nix/store/q8ng53dv1lccmg4a2jcj8540ifszi65j-coreutils-8.21.drv',
>>>> ['out'])
>>>> 19c20
>>>> < /nix/store/c8lg3m5mr246fvlx6xsrxa0sykv4l9pg-bootstrap-tools/bin/sh
>>>> ---
>>>> > /nix/store/p0vd3ydvxplbpjffkpblwj5dahcmp9ri-bash-4.2-p45/bin/bash
>>>> 23c24
>>>> < ('binutils',
>>>> '/nix/store/xjvdpqgn2kd4rg0k30z020kxylvlbpx0-binutils-2.23.1')
>>>> ---
>>>> > ('binutils',
>>>> '/nix/store/lc4961ic7mc3bsl7njhzm4qxawhvj2bq-binutils-2.23.1')
>>>> 25,26c26,27
>>>> < ('builder',
>>>> '/nix/store/c8lg3m5mr246fvlx6xsrxa0sykv4l9pg-bootstrap-tools/bin/sh')
>>>> < ('coreutils',
>>>> '/nix/store/xdswdgz11w9lm9n9bzb6spl7dj45s2x2-coreutils-8.21')
>>>> ---
>>>> > ('builder',
>>>> '/nix/store/p0vd3ydvxplbpjffkpblwj5dahcmp9ri-bash-4.2-p45/bin/bash')
>>>> > ('coreutils',
>>>> '/nix/store/w15x8z4g200r6syxnc2wyq93gizbg7dv-coreutils-8.21')
>>>> 28c29
>>>> < ('gcc', '/nix/store/9fb027n5a2lf9qwpb98v77iycqq552pf-gcc-4.8.2')
>>>> ---
>>>> > ('gcc', '/nix/store/1rymlfk7y0pjwmhh6ngp0azw3173v5a0-gcc-4.8.2')
>>>> 39c40
>>>> < ('libc', '/nix/store/pdskwizjw8ar31hql2wjnnx6g0s6xc50-glibc-2.19')
>>>> ---
>>>> > ('libc', '/nix/store/gbymvr6n95scxf6mzkgfzywydsjskmsm-glibc-2.19')
>>>> 45c46
>>>> < ('out',
>>>> '/nix/store/agf8fk4xj2aqr3jccfcypqsmvkz3smn8-gcc-wrapper-4.8.2')
>>>> ---
>>>> > ('out',
>>>> '/nix/store/nxzf150liimxqdz0f105kg5vsbcd9c75-gcc-wrapper-4.8.2')
>>>> 50,51c51,52
>>>> < ('shell',
>>>> '/nix/store/p0vd3ydvxplbpjffkpblwj5dahcmp9ri-bash-4.2-p45/bin/bash')
>>>> < ('stdenv',
>>>> '/nix/store/hbw5c0hqrg3mv7sa2aic7s9yvrcwjixz-stdenv-linux-boot')
>>>> ---
>>>> > ('shell',
>>>> '/nix/store/4s36p56jq79zhnyplrhqjscaqbw0x3c8-bash-4.2-p45/bin/bash')
>>>> > ('stdenv', '/nix/store/rq16hrf7gy426a6lcnf6pa9746sxnbgc-stdenv')
>>>> 55c56
>>>> < ('zlib', '')
>>>> ---
>>>> > ('zlib', '/nix/store/kksws74v0v0jf6dl6f5fhw24dygzairc-zlib-1.2.8')
>>>> ~~~~~~~~~~~
>>>>
>>>> I noticed that a few inputs are different in their names ('builder',
>>>> 'stdenv', 'zlib').
>>>>
>>>> --
>>>> Pavel
>>>>
>>>>
>>>>
>>>>
>>>> On Sun, May 25, 2014 at 10:25 AM, Kirill Elagin <kirelagin at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi Peter,
>>>>>
>>>>> Just for the record: this issue is not due to Pavel's
>>>>> misconfiguration, I can confirm the behaviour he described.
>>>>>
>>>>> In my case it is
>>>>>
>>>>> ~~~~~
>>>>> % nix-env --dry-run -iA nixos.pkgs.gcc
>>>>> (dry run; not doing anything)
>>>>> installing `gcc-wrapper-4.8.2'
>>>>> % readlink -f $(which gcc)
>>>>> /nix/store/agf8fk4xj2aqr3jccfcypqsmvkz3smn8-gcc-wrapper-4.8.2/bin/gcc
>>>>> ~~~~~~~~~~~
>>>>>
>>>>> (I don't know how to force `nix-env` to print computed hash of an
>>>>> already present package.)
>>>>>
>>>>> ~~~~~~
>>>>> % nix-env --dry-run -iA nixos.pkgs.testgcc
>>>>> (dry run; not doing anything)
>>>>> installing `testgcc'
>>>>>
>>>>> these derivations will be built:
>>>>>   /nix/store/41nacbfpr8jzsk3k03jjlqb2r2xis5gf-gcc-wrapper-4.8.2.drv
>>>>>   /nix/store/7z26jxbwkc5hx9gwrj47dhcpfxwg5b67-binutils-2.23.1.drv
>>>>>   /nix/store/di54xrm0pkrs67fv61g7j53qhsm8vm55-testgcc.drv
>>>>> these paths will be fetched (13.86 MiB download, 79.74 MiB unpacked):
>>>>>   /nix/store/1rymlfk7y0pjwmhh6ngp0azw3173v5a0-gcc-4.8.2
>>>>> ~~~~~~~~~~~~~~
>>>>>
>>>>> So please note that hashes don't much not only for `gcc-wrapper` and
>>>>> `binutils`, but also for `gcc` and,
>>>>> strangely enough, that another `gcc` is available on the channel!
>>>>>
>>>>> ~~~~~~~~
>>>>> % nix-store -q -R $(which gcc) | grep gcc-4
>>>>> /nix/store/9fb027n5a2lf9qwpb98v77iycqq552pf-gcc-4.8.2
>>>>> ~~~~~~~~~~~
>>>>>
>>>>> Probably, comparing inputs of `gcc`'s with given hashes might shed
>>>>> some light on the case.
>>>>>
>>>>> Answering your questions:
>>>>>
>>>>> ~~~~~~
>>>>> % nix-env -qaP | grep testgcc
>>>>> nixos.pkgs.testgcc
>>>>> testgcc
>>>>> ~~~~~~~
>>>>>
>>>>> And removing `~/.nix-defexpr/channels` doesn't change anything.
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Кирилл Елагин
>>>>>
>>>>>
>>>>> On Sun, May 25, 2014 at 1:55 AM, Peter Simons <simons at cryp.to> wrote:
>>>>>
>>>>>> Hi Pavel,
>>>>>>
>>>>>> could you please restore original ~/.nixpkgs/config.nix file you were
>>>>>> using when you started this thread and run:
>>>>>>
>>>>>>   $ nix-env -qaP \* | grep testgcc
>>>>>>
>>>>>> What is the output of that command?
>>>>>>
>>>>>> Afterwards, please delete the symlink ~/.nix-defexpr/channels (so that
>>>>>> ~/.nix-defexpr/channels_root is the only remaining entry in that
>>>>>> directory). Then, please run:
>>>>>>
>>>>>>   $ nix-env -iA nixos.pkgs.testgcc --dry-run
>>>>>>
>>>>>> Does the command still try to re-build gcc, glibc, etc.?
>>>>>>
>>>>>> Take care,
>>>>>> Peter
>>>>>>
>>>>>> _______________________________________________
>>>>>> nix-dev mailing list
>>>>>> nix-dev at lists.science.uu.nl
>>>>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> nix-dev mailing list
>>>>> nix-dev at lists.science.uu.nl
>>>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>>>>>
>>>>>
>>>>
>>>
>>
>
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