Re: [PATCH v5] tools build: Fix rust cross compilation

[Dmitry Dolgov]

> On Thu, Feb 26, 2026 at 09:10:24AM -0800, Ian Rogers wrote:
> Not a cross-compilation problem, but is there a way to pass-through
> extra flags to the rust compiler? For CFLAGS we have EXTRA_CFLAGS as a
> make variable, but I don't see an EXTRA_RUSTFLAGS. I was looking for
> this because I was trying to make a build passing "-m32" to CFLAGS to
> create a 32-bit perf binary. The link against the rust workload was
> failing due to the different object types.

Nope, not yet, currently one can only set global RUST_FLAGS or per build
target. But sure, I'll add this in a separate patch.