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Questions - bytecode-manipulation

Low-overhead tracing function in Python by modify the code object

sys.settrace is inefficient, to say the least. It adds a lot of overhead to every function call in Python. Instead, I'm looking for a way to trace the "call" event for only a couple hundred ...
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Michael Petrochuk

python

metaprogramming

trace

bytecode-manipulation

overhead

Votes: 0

Answers: 1

Latest Answer

Okay, so following the approach outlined in Modifying Code of Function at Runtime, I took a stab at it... # boo.py import inspect import sys import types def ___trace(): """ N...
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Michael Petrochuk

How to generate looping bytecode using Javassist?

I am trying to write a compiler for an esoteric programming language that compiles to Java Bytecode. I'm trying to use Javassist to generate the bytecode. I got stuck when trying to generate branching...
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Sweeper

java

javassist

bytecode-manipulation

Votes: 0

Answers: 1

Latest Answer

Thanks to Holger's comment, I was able to figure out that I actually needed a StackMapTable, not a StackMap. And I indeed need a stack map table entry at every branch destination. var stackMap = new S...
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Sweeper

Why is invokedynamic faster than invokestatic

Recently, I have been working with low-level Java, modifying the JVM bytecode and generating Class Files without compiling .java files. I just learned about invokedynamic, and I was able to generate m...
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Ethan Ferguson

java

jvm

bytecode

bytecode-manipulation

invokedynamic

Votes: 0

Answers: 0

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