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| author | Andre Richter <andre.o.richter@gmail.com> | 2019-02-01 22:11:40 +0100 |
|---|---|---|
| committer | Andre Richter <andre.o.richter@gmail.com> | 2019-02-01 22:11:40 +0100 |
| commit | c4e46140f6a295d2d668ccc5bf25858233b11cbb (patch) | |
| tree | 2aa33e64d46940e104b823e7927bfe8ea4218fef /src | |
| parent | 23d8d0c319c37287657280bde61816d297f966d8 (diff) | |
| download | rust-c4e46140f6a295d2d668ccc5bf25858233b11cbb.tar.gz rust-c4e46140f6a295d2d668ccc5bf25858233b11cbb.zip | |
targets: aarch64-unknown-none: Add +strict-align
On AArch64, an unaligned access causes a synchronous exception. In the current state of the target, the compiler might generate unaligned accesses, see https://github.com/rust-embedded/rust-raspi3-tutorial/issues/10. Since this is a bare-metal target, it is possible that there is no exception handling in place (yet) to recover from this case, causing a binary to just silently fail. Add `+strict-align` to avoid this case.
Diffstat (limited to 'src')
| -rw-r--r-- | src/librustc_target/spec/aarch64_unknown_none.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustc_target/spec/aarch64_unknown_none.rs b/src/librustc_target/spec/aarch64_unknown_none.rs index 3440a4f8752..8c02bc61088 100644 --- a/src/librustc_target/spec/aarch64_unknown_none.rs +++ b/src/librustc_target/spec/aarch64_unknown_none.rs @@ -11,6 +11,7 @@ use super::{LldFlavor, LinkerFlavor, Target, TargetOptions, PanicStrategy}; pub fn target() -> Result<Target, String> { let opts = TargetOptions { linker: Some("rust-lld".to_owned()), + features: "+strict-align".to_string(), executables: true, relocation_model: "static".to_string(), disable_redzone: true, |