[llvm-dev] [RFC] llvm-dwarfdump's command line interface

Reid Kleckner via llvm-dev llvm-dev at lists.llvm.org
Sat Sep 9 08:13:16 PDT 2017

+1 for the shorter options.

On Sep 8, 2017 2:25 PM, "Adrian Prantl via llvm-dev" <
llvm-dev at lists.llvm.org> wrote:

> I would like to grow llvm-dwarfdump to become a drop-in replacement for
> the dwarfdump utility that is currently shipping on Darwin. (You can search
> the web for "darwin dwarfdump manpage" to see the currently supported
> feature set.) Doing this means implementing the missing features, such as
> the ability to print only subsets of DIEs, looking up DIEs by name or
> address, and the option to produce more diff-friendly output. I'm fairly
> certain that these additional features will be beneficial on all
> LLVM-suported platforms.
> To turn it into a drop-in replacement on Darwin, I will also need to
> re-orgnize the command line interface a bit. In particular (and this is
> pretty much the only difference)
> $ llvm-dwarfdump --debug-dump=info
> $ llvm-dwarfdump --debug-dump=apple-objc
> becomes
> $ dwarfdump --debug-info
> $ dwarfdump --apple-objc
> respectively.
> My question is, how attached are users on other platforms to the current
> command line interface? I could easily create a separate command line
> parser for Darwin that mimicks Darwin dwarfdump (like llvm-objdump does),
> or we could just change the command line interface for llvm-dwarfdump. I
> know that there is also a dwarfdump utility on Linux (based on libdwarf?)
> that has an entirely different command line interface from both
> llvm-dwarfdump and Darwin dwarfdump.
> Do people see value in keeping the llvm-dwarfdump command line interface
> or would changing it to the above format be acceptable?
> thanks for your input!
> Adrian
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