diff options
| -rw-r--r-- | compiler/rustc_error_codes/src/error_codes.rs | 2 | ||||
| -rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0472.md | 31 | ||||
| -rw-r--r-- | src/test/ui/asm/bad-arch.mirunsafeck.stderr | 1 | ||||
| -rw-r--r-- | src/test/ui/asm/bad-arch.thirunsafeck.stderr | 1 |
4 files changed, 34 insertions, 1 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes.rs b/compiler/rustc_error_codes/src/error_codes.rs index 883a4bbe8e8..2835e62fd83 100644 --- a/compiler/rustc_error_codes/src/error_codes.rs +++ b/compiler/rustc_error_codes/src/error_codes.rs @@ -248,6 +248,7 @@ E0464: include_str!("./error_codes/E0464.md"), E0466: include_str!("./error_codes/E0466.md"), E0468: include_str!("./error_codes/E0468.md"), E0469: include_str!("./error_codes/E0469.md"), +E0472: include_str!("./error_codes/E0472.md"), E0477: include_str!("./error_codes/E0477.md"), E0478: include_str!("./error_codes/E0478.md"), E0482: include_str!("./error_codes/E0482.md"), @@ -600,7 +601,6 @@ E0791: include_str!("./error_codes/E0791.md"), // E0467, // removed // E0470, // removed // E0471, // constant evaluation error (in pattern) - E0472, // llvm_asm! is unsupported on this target // E0473, // dereference of reference outside its lifetime // E0474, // captured variable `..` does not outlive the enclosing closure // E0475, // index of slice outside its lifetime diff --git a/compiler/rustc_error_codes/src/error_codes/E0472.md b/compiler/rustc_error_codes/src/error_codes/E0472.md new file mode 100644 index 00000000000..0005cd41911 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0472.md @@ -0,0 +1,31 @@ +Inline assembly (`asm!`) is not supported on this target. + +Example of erroneous code: + +```ignore (cannot-change-target) +// 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! diff --git a/src/test/ui/asm/bad-arch.mirunsafeck.stderr b/src/test/ui/asm/bad-arch.mirunsafeck.stderr index 4aa27180758..d7af296152f 100644 --- a/src/test/ui/asm/bad-arch.mirunsafeck.stderr +++ b/src/test/ui/asm/bad-arch.mirunsafeck.stderr @@ -14,3 +14,4 @@ LL | global_asm!(""); error: aborting due to 2 previous errors +For more information about this error, try `rustc --explain E0472`. diff --git a/src/test/ui/asm/bad-arch.thirunsafeck.stderr b/src/test/ui/asm/bad-arch.thirunsafeck.stderr index 4aa27180758..d7af296152f 100644 --- a/src/test/ui/asm/bad-arch.thirunsafeck.stderr +++ b/src/test/ui/asm/bad-arch.thirunsafeck.stderr @@ -14,3 +14,4 @@ LL | global_asm!(""); error: aborting due to 2 previous errors +For more information about this error, try `rustc --explain E0472`. |