Hello:
This patch was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@xxxxxxxxxx>:
On Tue, 13 Feb 2024 17:35:43 +0000 you wrote:
> Due to internal differences between LLVM and GCC the current
> implementation for the CO-RE macros does not fit GCC parser, as it will
> optimize those expressions even before those would be accessible by the
> BPF backend.
>
> As examples, the following would be optimized out with the original
> definitions:
> - As enums are converted to their integer representation during
> parsing, the IR would not know how to distinguish an integer
> constant from an actual enum value.
> - Types need to be kept as temporary variables, as the existing type
> casts of the 0 address (as expanded for LLVM), are optimized away by
> the GCC C parser, never really reaching GCCs IR.
>
> [...]
Here is the summary with links:
- [v2,bpf-next] libbpf: add support to GCC in CORE macro definitions
https://git.kernel.org/bpf/bpf-next/c/12bbcf8e840f
You are awesome, thank you!
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