Re: [PATCH 1/4] tools: riscv: Add header file csr.h

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On Wed, Aug 02, 2023 at 11:13:34PM -0400, Guo Ren wrote:
> On Wed, Aug 02, 2023 at 10:05:00AM +0800, Haibo Xu wrote:
> > On Fri, Jul 28, 2023 at 5:43 PM Andrew Jones <ajones@xxxxxxxxxxxxxxxx> wrote:
> > >
> > > On Thu, Jul 27, 2023 at 03:20:05PM +0800, Haibo Xu wrote:
> > > > Borrow some of the csr definitions and operations from kernel's
> > > > arch/riscv/include/asm/csr.h to tools/ for riscv.
> > >
> > > You should copy the entire file verbatim.
> > >
> > 
> > Ok, will copy all the definitions in the original csr.h
> Why not include the original one? Maintain the one csr.h is more
> comfortable.

selftests and other userspace tools can't always compile when including a
kernel header without modifying the header in some way. Rather than
polluting headers with #ifdeffery, the practice has been to copy necessary
headers to tools/include and modify if necessary.

Thanks,
drew



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