Re: [RFC PATCH v3 2/5] rust: add bindgen step as a meson dependency

[Manos Pitsidianakis <manos.pitsidianakis@linaro.org>]

On Fri, 28 Jun 2024 22:12, Pierrick Bouvier <pierrick.bouvier@linaro.org> wrote:
>I've been able to build rust device on windows, with a few tweaks 
>needed.
>
>- specificy the target for libclang (used by bindgen), which targets 
>MSVC by default (so different set of headers)
>- additional headers (libclang searches its own header with a relative 
>path instead of absolute)
>- additional windows libs that must be linked in final executable
>
>However, even tough I can build the executable, I get this error:
>$ ./build/qemu-system-aarch64 -M virt
>C:\w\qemu\build\qemu-system-aarch64.exe: unknown type 'x-pl011-rust'
>
>Any idea of what could be missing here?

Sounds like either the rust lib is not linked to the final binary (which 
you can confirm if you look at the included symbols and don't see 
anything with rust origin) or the constructor decorated with     
#[cfg_attr(target_os = "windows", link_section = ".CRT$XCU"] is not 
linked properly (you can add a puts() and see if it's invoked or add a 
breakpoint in gdb)