[lldb-dev] Supporting new source languages
michaelwoerister at posteo.de
Thu Jan 16 08:04:40 PST 2014
On 13.01.2014 15:04, Michael Woerister wrote:
> Hi everyone,
> I was wondering if it is a goal of LLDB to allow for supporting
> programming languages other C/C++ and Objective-C? I've been browsing
> the source code a bit and found that references to clang::Type are
> hardwired into lldb::Type. Is there an extension path that allows to
> sidestep Clang and use one's own type representation? Is it even
> feasible to try and support non-Clang languages within LLDB's
> architecture? That would be very interesting to me.
> Thanks for reading!
> lldb-dev mailing list
> lldb-dev at cs.uiuc.edu
Nobody care to comment? Let me elaborate a bit on my reasons for asking.
Since last summer I've been working on debuginfo generation for the Rust
compiler (www.rust-lang.org). As the Rust compiler is LLVM based this
worked out pretty well and we produce DWARF good enough to satisfy basic
debugging needs. However, obviously debuggers don't recognize Rust yet
and print out values in the wrong syntax among other things. Some of
this can be alleviated with Python extensions in LLDB and GDB, but the
information available through those APIs seems to be limited (eg. it
seems hard get modifiers, such as 'const' or 'volatile'). Also it would
be great to allow for parsing Rust expressions in the debugger, call
functions, in short: make Rust a first-class citizen of the given
debugger. I'm currently trying to find out what the possibilities in
this area are.
GDB seems to have a story for supporting new source languages but for
LLDB I couldn't find anything about the topic yet. It would be great if
somebody could elaborate on this, even if only saying "not a goal for
LLDB" or "too early to ask for something like this".
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