Hi,

I have a 2 part (but semi-related question) here.

1)

I am looking at being able to generate specific runtime calls during the 
execution of certain JS functions. This can be thought of as having V8 
insert calls (annotating function entry/exit points) with calls to an 
external system library/call (e.g. Calling "ls").

I see there are ways of doing the opposite: invoking v8 from within C++ 
code: 

https://bungeeconnect.wordpress.com/2008/10/09/connecting-c-to-javascript-via-googles-v8/

But I am sort of looking for the opposite. Is something like the following 
possible:

 Runtime.getRuntime().exec("ls"); // example invoking runtime from android / 
Java



2)

My end goal here is to have the code-generator generate additional calls 
(at the prologue/epilogue) to this external function / library) for 
functions deemed to be "hot" by crankshaft. For this I presume, Would I 
need to edit the code-generator part (full-codegen.cc) to generate these 
extra calls inside these functions, or should it be done elsewhere, perhaps 
in the lithium generator part?

I should note that I have been able to compile this external library within 
v8 as a third party tool, and I verified invoking it within v8 works.


Malek

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