On May 2, 2006, at 4:23 AM, jacob navia wrote:
To get to the corresponding catch, the runtime should skip through the intermediate frames in assembler generated by the JIT. We would like to know how should be the interface with gcc to do this.
The C++ abi spec and dwarf specs are good background reading materials.
We thought for a moment that using sjlj_exceptions it would work, but we fear that this is no longer being maintained.
While one could do that, I'd recommend just doing up the dwarf style EH information for the JIT code.
1) Is this true?
Not exactly.
2) Can we use sjlj exception under linux safely?
I'd expect so. Though, you have to understand this this would mean that you'd have to recompile all the code on the system, possibly including the C library, gcc and the like, as well as application code and library code. When faced with that, you might determine it is impossible.
Otherwise, would it be possible to generate the DWARF Tables and add those tables dynamically to the running program?
Yes (could require OS changes).
Under windows, Microsoft provides an API for JITs that does exactly that. Is there an equivalent API for linux?
Don't think so.
