Error code E0472
Inline assembly (asm!
) is not supported on this target.
Example of erroneous code:
// compile-flags: --target sparc64-unknown-linux-gnu
#![no_std]
use core::arch::asm;
fn main() {
unsafe {
asm!(""); // error: inline assembly is not supported on this target
}
}
The Rust compiler does not support inline assembly, with the asm!
macro
(previously llvm_asm!
), for all targets. All Tier 1 targets do support this
macro but support among Tier 2 and 3 targets is not guaranteed (even when they
have std
support). Note that this error is related to
error[E0658]: inline assembly is not stable yet on this architecture
, but
distinct in that with E0472
support is not planned or in progress.
There is no way to easily fix this issue, however:
- Consider if you really need inline assembly, is there some other way to achieve your goal (intrinsics, etc)?
- Consider writing your assembly externally, linking with it and calling it from Rust.
- Consider contributing to https://github.com/rust-lang/rust and help integrate support for your target!