Implementation of my own BIF function

[Sergey Loguntsov]

> You should use a NIF not a BIF.
Actually i can't use it as i needs internal representation of information
from Erlang process which is available only from BIF. NIF hides it from me
and i forced to include Erlang sources to NIF code. I don't like it.

> You can use `./otp_build update_preloaded`
It works for me. Thank you very much.

пт, 13 мар. 2020 г. в 02:04, Andrew Thompson <andrew@REDACTED>:

> On Thu, Mar 12, 2020 at 09:44:11PM +0300, Sergey Loguntsov wrote:
> > Hi, everybody.
> >
> > I tried to implement my own BIF-function which is implemented inside
> Erlang
> > sources.
>
> You should use a NIF not a BIF.
> >
> > So i made sources of this function in erts/emulator/beam/bif.c and i have
> > changed erts/emulator/beam/bif.tab
> > (
> >
> https://github.com/loguntsov/otp/commit/7a28a3d99b0c7795d956caec5e4e397183dd1ea9
> > )
> > i found also i must change erts_internal.erl module in
> /erts/preloaded/src
> > folder.
> > So i made it:
> >
> https://github.com/loguntsov/otp/commit/84c4bfb8c372ade9d92c4a20515f91fe33062b1d
> >
> > My problem is .. there are prebuilded files based on erts/preloaded/ebin
> > and actually they are not updating every time what i'm building Erlang.
> > They are committed as part of sources (seems this is big crutch).
> > So my question is what is right way to update preloaded modules (beam
> > files) ?
> > May be there is another way to have BIF function outside from Erlang
> > sources ? and building them together ?
>
> You can use `./otp_build update_preloaded` if you really want to do this
> which will recompile the precompiled beams for you. However be careful
> as it will also make a git commit for you(??).
>
> Andrew
>
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