The use of __attribute__((__constructor__))

[Orvid]

Is there a specific reason that __attribute__((__constructor__)) is used rather than a dynamic initializer like:

static struct Example {
Example() { /* Do some assembly construction logic here */ }
} s_example;

I ask because, although I can provide the same thing with MSVC, it's not exactly pretty, and it would be much cleaner to switch to initializers.

[bugok]

Thanks for reporting @Orvid.
Are you referring to a specific location? I see this happening in several places in the code.
For example: https://github.com/facebook/proxygen/blob/master/proxygen/lib/http/HTTPMethod.cpp#L27

In this example - I believe that it's to make sure that this structure is available when main() is called.

[Orvid]

It's just a general question, regarding all uses of the attribute.

[afrind]

I think we're trying to move away from static initializers with non-trivial destructors because destruction order is difficult to reason about.

[russoue]

@Orvid, can we close this issue?

[russoue]

@Orvid, it seems that we have another issue opened for this: #66, can you please close this one?

[Orvid]

Yep.