Jon Hunter 2360391866 scripts: Add conftest.sh support ...

The script conftest.sh can be used at build time to determine which
kernel headers or versions of kernel functions/macros are present in the
kernel that drivers are being compiled against. This is useful for cases
where changes are backported from upstream Linux kernels that may change
kernel functions and so we can no longer rely on the kernel version to
indicate which version of the kernel function to use.

The conftest.h header file is a top-level header file that includes all
the header files that are generated by the conftest.sh script. This
header file can be included by drivers so that they can use the various
definitions that are generated by conftest.sh. This file is located
along with the conftest.sh script because this is copied to the output
directory where all the generated header files are placed.

Bug 4119327
Bug 4228080

Change-Id: I781884e359e9688640661548620e01a178debac9
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2974065
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>

2023-09-05 23:08:03 -07:00

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