Need help in creating clone functions

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1

Hello,

I am working on creating a llvm pass which clones a certain function with a different name using CloneFunctionInto. I create a call instruction to call a new cloned function from the old function. In llvm IR and in .s file everything looks as expected, but when I call this program with gdb and set a breakpoint on this new function, gdb shows the name of the original function. I know it has to do something with debug options but I am not sure how should I set the debug options of this new function so that I can see it in gdb.
Can someone please help me with this?

2

Check the DISubprogram associated with the cloned function (in the
LLVM IR the Function definition would have an "!dbg !47" at the end,
and that !47 would refer to a !DISubprogram that describes th
efunction) - you'd probably need to create a new DISubprogram and set
that as the subprogram for the new llvm::Function so it doesn't share
the same description/name/etc as the original.

3

Thanks, David for the quick response. It definitely has solved the problem.