Re: Dynamically choosing the main function

For example, I can easily define entry points for arbitrary functions. At run time I can choose which entry point to call and benchmark that entry point using existing performance benchmarking tools like the very powerful and comprehensive "perf" tool on linux. This provides a very powerful way to analyze the performance for free and in a convenient manner with little instrumentation. I do not want the main entry point to be clobbered for such things. Ideally I would just use a simple annotation for any arbitrary function to convert it into an entry point that can be chosen at runtime. I am just giving a general idea here without going into specifics. -harendra On 12 November 2017 at 21:58, Shea Levy wrote:

What would you be able to achieve with this that you couldn't achieve with branching in a fixed custom main function?

Thanks, Shea

Harendra Kumar writes:

...

Hi,

GHC allows choosing a main function at link time using the "-main-is" option. I was wondering if there is a possibility to choose the main function at runtime. Or even better, if something equivalent to "ghc -e" is somehow possible in a linked binary executable. If not, are there any plans to achieve something like that in future? Are there any theoretical, practical obstacles to that?

Thanks, Harendra _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs