Re: [PATCH 1/9] tools/nolibc: move ioctl() to sys/ioctl.h

[Mark Brown <broonie@kernel.org>]

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On Wed, May 21, 2025 at 03:45:42PM +0200, Thomas Weißschuh wrote:
> On 2025-05-21 14:22:30+0100, Mark Brown wrote:

> > Ah, you expect what's currently there to work - good.  I noticed that
> > the vDSO tests had a -I for the nolibc directory which made me think it
> > was expected that it be there, it's the only user on most arches.

> The -I is useful to compile applications without guarding the system
> includes with #ifndef NOLIBC.

These tests are all nolibc specific and so don't reference the system
headers, the whole point is to not use a real libc.

> What do I have to do to cross-compile these selftests?
> I get various compiler errors.

Any specific errors?  It's just a standard selftest build, eg:

   make -C tools/testing/selftests LLVM=1 ARCH=arm64 TARGETS=arm64

Unless you've got very current userspace headers you'll probably need
a headers_install too (that's generally needed for the selftests).

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