[Toybox] perf(1)

[Daniel Cegiełka]

Hi Elliott,

2015-03-12 7:09 GMT+01:00 enh <enh at google.com>:
> oh, i had a suggestion for the roadmap... perf(1). there are two or
> three problems with perf, all of which are the kind of problems that
> people on this list are likely to be interested in:
>
> 1. perf itself is GPL.
> 2. perf uses elfutils (libelf), which is GPL.
> 3. you can't compile elfutils with clang. (heavy use of nested
> functions, a GCC extension clang doesn't support. the elfutils guys
> seem to be vehemently against fixing that. but then these are people
> who use strndupa...)

point 2 and 3?

https://github.com/elftoolchain/elftoolchain/tree/master/libelf

Best regards,
Daniel


>
> point 3 is the one that's going to cause problems because it's one of
> a very small number of projects in the entire tree that can't be built
> with clang, and it's the only thing in the tree where fixing it would
> be a major change *and* the upstream owners are actively against the
> change.
>
> i suspect at some point Android will end up writing a Java
> implementation of perf (because most third party app developers use
> Windows), but a native implementation that also worked on Mac OS and
> WIndows might still be something Android could use directly in the
> IDE. but even something Linux-only would still be useful for platform
> developers, and could replace the existing implementation.
>
> (i see people here talk about big things like linkers and compilers
> and can't help but think of the smaller things i don't currently have
> a good option for :-) )
>
>  --elliott
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