On 29.05.2013 17:01, Michael Wörister wrote:
Hi everyone,
I wanted to quickly introduce myself here. My name is Michael Woerister
and I was accepted for Rust's Google Summer of Code project this year,
regarding debug symbol generation for rustc.
Congratulations and good luck!
As for comments (please, excuse me if I am writing something obvious): I
have noticed that the current implementation in debuginfo.rs emits debug
information by directly building proper LLVM metadata nodes using the
low-level functions. An alternative approach could be taken by using
LLVM's DIBuilder [1] class that abstracts these low-level functions and
the debugging metadata format into a higher-level interface. Taking this
approach would involve creating bindings for DIBuilder. However, this
effort might pay off in the longer term, because all the (undocumented)
changes that may happen to the LLVM's low-level debug information format
would be hidden behind DIBuilder. The other benefit is that DIBuilder
keeps track of what metadata nodes it has generated and reuses the
existing nodes instead of generating identical ones --- similar
functionality from debuginfo.rs could be removed then.
Cheers,
Wojtek
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