[erlang-questions] Problem building plt to dialyzer

[Michel Boaventura]

Hi Kelly,

This turns out to be an issue with erlang and zlib > 1.2.8:

http://erlang.org/pipermail/erlang-questions/2017-January/091452.html

You can either downgrade zlib or apply the patch provided on the link.

Cheers

Em 26 de jan de 2017 17:27, "Kelly McLaughlin" <mclaughlin77@REDACTED>
escreveu:

> I'm having some issues that seem related to your problem. I don't have a
> good solution for you, but I'll add some details about my problems to the
> thread.
>
> I'm running Arch Linux and I I've been using erlang 18.3 from a custom
> build instead of the Arch package. As of about a month ago, everything was
> fine including dialyzer and xref. I didn't do any work with erlang for
> about a month and went back to it this week and found that I could no
> longer get dialyzer or xref to work. I get complaints about missing
> debug_info like this:
>
> ===> Error in dialyzing apps: Could not get abstract code for file:
> /home/kelly/erlang/18.3-64/lib/erlang/lib/compiler-6.0.3/ebin/beam_disasm.beam
> (please recompile it with +debug_info)
>
> But the module_info disagrees that debug_info is not present:
>
> 1> beam_disasm:module_info().
> [{module,beam_disasm},
>  {exports,[{function__code,1},
>            {format_error,1},
>            {file,1},
>            {module_info,0},
>            {module_info,1}]},
>  {attributes,[{vsn,[161664284732293947572238212319246115161]},
>               {author,"Kostis Sagonas"}]},
>  {compile,[{options,[{outdir,"/net/isildur/ldisk/daily_
> build/18_prebuild_opu_o.2016-03-14_21/otp_src_18/lib/
> compiler/src/../ebin"},
>                      {i,"/net/isildur/ldisk/daily_
> build/18_prebuild_opu_o.2016-03-14_21/otp_src_18/lib/
> compiler/src/../../stdlib/include"},
>                      {i,"/net/isildur/ldisk/daily_
> build/18_prebuild_opu_o.2016-03-14_21/otp_src_18/lib/compiler/src/."},
>                      warnings_as_errors,warn_unused_import,inline,debug_
> info]},
>
> Meanwhile our build machine running Debian 8 and also using erlang 18.3 is
> still able to run dialyzer just fine. This makes me think it's likely an
> issue with a system package that may have advanced on Arch and included
> some changes that cause this problem.
>
> I've tried other versions of erlang as well with the same results. I
> unpacked some versions of 18.3 from the esl debian packages and using them
> got the same debug_info error. I wiped out my 18.3 PLT files trying to get
> things working, but I still had some 18.2.1 PLT files. I built a version of
> 18.2.1, but dialyzer thinks the files are invalid and if I move them out of
> the way then I am back to the debug_info errors.
>
> 1> dialyzer:plt_info("rebar3_18.2.1_plt").
> {error,not_valid}
>
> If I copy that same PLT file to our Debian build machine and do the same
> the file seems fine:
>
> 1> dialyzer:plt_info("rebar3_18.2.1_plt").
> {ok,[{files,["/home/kelly/erlang/18.2.1-64/lib/erlang/
> lib/compiler-6.0.2/ebin/beam_a.beam",
>              "/home/kelly/erlang/18.2.1-64/lib/erlang/lib/compiler-6.0.2/
> ebin/beam_asm.beam",
>              "/home/kelly/erlang/18.2.1-64/lib/erlang/lib/compiler-6.0.2/
> ebin/beam_block.beam",
>              "/home/kelly/erlang/18.2.1-64/lib/erlang/lib/compiler-6.0.2/
> ebin/beam_bool.beam",
>              "/home/kelly/erlang/18.2.1-64/lib/erlang/lib/compiler-6.0.2/
> ebin
> ...
>
> Any thoughts or ideas on this are appreciated. Thanks!
>
>
> Hi,
>>
>> I've installed erlang 19.2 from source code on my Gentoo Linux and I'm not
>> able to build plt to dialyzer. It gives me the above error. The build was
>> configured with --without-javac --prefix=/usr
>>
>> dialyzer --build_plt --apps kernel
>>
>> dialyzer: Could not get abstract code for file:
>> /usr/lib/erlang/lib/kernel-5.1.1/ebin/disk_log.beam (please recompile it
>> with +debug_info)
>>
>> I've also tried entering on erts/emulator and running make debug and tried
>> to set ERL_COMPILE_FLAGS="+debug_info" with no luck.
>>
>> I don't know if it is an issue with gentoo (both my gentoo machines have
>> the same problem) because I have the same issue using portage and evm to
>> install it.
>>
>> Thank you!
>>
>> --
>> Michel Almada de Castro Boaventura
>> Analista de Sistemas
>> Laborat?rio de Software Livre - LSL
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