how to see cpp(C preprocessor) output for a file?

[Rasmus Villemoes]

On 14/12/2021 16.10, Chan Kim wrote:
> But when I do
> make CROSS_COMPILE=aarch64-none-elf- lib/tiny-printf.1
> make: *** No rule to make target 'lib/tiny-printf.1'.  Stop.

letter i , not digit 1

Rasmus