[PATCH] eal: provide rte attribute macro for GCC attribute

[Thomas Monjalon]

15/02/2024 23:20, Tyler Retzlaff:
> Provide a new macro __rte_attribute(a) that when directly used
> compiles to empty for MSVC and to __attribute__(a) when using GCC/LLVM.
> 
> Replace direct use of __attribute__ in __rte_xxx macros where there is
> existing empty expansion of the macro for MSVC allowing removal of
> repeated #ifdef RTE_TOOLCHAIN_MSVC per macro to expand empty.

I'm not sure it makes sense.
I prefer seeing clearly what is empty with MSVC.