[llvm-dev] IR to binary address mapping
Muhui Jiang via llvm-dev
llvm-dev at lists.llvm.org
Wed Jun 13 00:09:09 PDT 2018
However, frontend may also do various operations on the source code and one
line number and column number could map to more than one binary address.
Why LLVM IR cannot?
2018-06-12 23:18 GMT+08:00 mayuyu.io <admin at mayuyu.io>:
> In theory that’s not exactly possible/accurate. Due to various operations
> in the Backend like Instruction Legalization, one IR instruction might got
> emitted into multiple assembly instruction, for example
> > 在 2018年6月12日，22:30，Muhui Jiang via llvm-dev <llvm-dev at lists.llvm.org>
> > Hi
> > I know that LLVM provide some debug API for us to know the source code
> information. For example, every IR instruction's source line number and
> column number.
> > However, are there any method to get a mapping from IR instruction to
> binary address directly. I don't want to use dwarf line mapping table as a
> bridge. I think the binary is generated by clang and llvm. I think there
> definitely is some information about the mapping relationship between LLVM
> IR and the target binary address. Do anyone has suggestions? Many Thanks
> > Regards
> > Muhui
> > _______________________________________________
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> > llvm-dev at lists.llvm.org
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