Re: [PATCH] perf capstone: Fix build with Capstone versions before 6

[Namhyung Kim <namhyung@kernel.org>]

On Tue, Jul 14, 2026 at 09:36:52AM +0100, Leo Yan wrote:
> On Mon, Jul 13, 2026 at 01:53:55PM -0700, Namhyung Kim wrote:
> 
> [...]
> 
> > > Perhaps checking the Capstone version would be a safer approach?
> > 
> > I'm not sure.  IIUC RISC-V support was added to v5.0 and CS_MODE_RISCV_C
> > was changed before v6.0 is out.  Do you build capstone from source or
> > use a packaged version?
> 
> I checked Capstone source for two RISCV commits:
> 
>   ec6428f9 Refactoring the RISCV architecture to Auto-Sync on LLVM (#2756)
>   b8fcf27b RISCV support ISRV32/ISRV64 (#1401)
> 
>   $ git describe --contains ec6428f92
>   6.0.0-Alpha7~10
>   $ git describe --contains b8fcf27b2
>   6.0.0-Alpha1~513

I'm curious what `git tag --contains` would say.  I can see RISCV in the
5.0 source code.

https://github.com/capstone-engine/capstone/blob/5.0/include/capstone/capstone.h#L90

> 
> This is why I concluded that v6.0 is the version start to support. I did
> not build capstone from scratch but just use a packaged version.

What's your version?

> 
> Just remind, CS_MODE_RISCVC might break build when you work with the
> latest Capstone, as it has been renamed to CS_MODE_RISCV_C.

Yep.  https://github.com/capstone-engine/capstone/issues/2977

Thanks,
Namhyung