Shipping core libraries with debug symbols

[Johan Tibell]

Could we get this for 7.10 so our debug info story is more "well-rounded"?

On Fri, Jan 9, 2015 at 5:11 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> I've been building the RTS with debug symbols for our internal GHC build
> at FB, because it makes investigating problems a lot easier.  I should
> probably upstream this patch.
>
> Shipping libraries with debug symbols should be fine, as long as they can
> be stripped - Peter, does stripping remove everything that -g creates?
>
> Cheers,
> Simon
>
>
> On 02/01/2015 23:18, Johan Tibell wrote:
>
>> Hi!
>>
>> We are now able to generate DWARF debug info, by passing -g to GHC. This
>> will allow for better debugging (e.g. using GDB) and profiling (e.g.
>> using Linux perf events). To make this feature more user accessible we
>> need to ship debug info for the core libraries (and perhaps the RTS).
>> The reason we need to ship debug info is that it's difficult, or
>> impossible in the case of base, for the user to rebuild these
>> libraries.The question is, how do we do this well? I don't think our
>> "way" solution works very well. It causes us to recompile too much and
>> GHC doesn't know which "ways" have been built or not.
>>
>> I believe other compilers, e.g. GCC, ship debug symbols in separate
>> files (https://packages.debian.org/sid/libc-dbg) that e.g. GDB can then
>> look up.
>>
>> -- Johan
>>
>>
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/ghc-devs/attachments/20150109/5b5084ce/attachment.html>