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| author | Matthias Krüger <matthias.krueger@famsik.de> | 2024-08-15 19:32:35 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-08-15 19:32:35 +0200 |
| commit | 3075644a3db0e529e5e9e74cf5ea74a0a638d1fe (patch) | |
| tree | ae613eb4851f8a4ca6b7a3f6d64dffb5a4f45508 /src/doc/rustc | |
| parent | d2b5aa6552c8acf67f38a2ad92062a32ec542f08 (diff) | |
| parent | b368dcb246c5aedb087034e0f62941d038799f38 (diff) | |
Rollup merge of #128348 - dingxiangfei2009:allow-shadow-call-stack-sanitizer, r=tmandry
Unconditionally allow shadow call-stack sanitizer for AArch64 It is possible to do so whenever `-Z fixed-x18` is applied. cc ``@Darksonn`` for context The reasoning is that, as soon as reservation on `x18` is forced through the flag `fixed-x18`, on AArch64 the option to instrument with [Shadow Call Stack sanitizer](https://clang.llvm.org/docs/ShadowCallStack.html) is then applicable regardless of the target configuration. At the every least, we would like to relax the restriction on specifically `aarch64-unknonw-none`. For this option, we can include a documentation change saying that users of compiled objects need to ensure that they are linked to runtime with Shadow Call Stack instrumentation support. Related: #121972
Diffstat (limited to 'src/doc/rustc')
| -rw-r--r-- | src/doc/rustc/src/platform-support/android.md | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/doc/rustc/src/platform-support/android.md b/src/doc/rustc/src/platform-support/android.md index 9ddf00e3a50..96499b0d801 100644 --- a/src/doc/rustc/src/platform-support/android.md +++ b/src/doc/rustc/src/platform-support/android.md @@ -61,3 +61,8 @@ Currently the `riscv64-linux-android` target requires the following architecture * `Zba` (address calculation instructions) * `Zbb` (base instructions) * `Zbs` (single-bit instructions) + +### aarch64-linux-android on Nightly compilers + +As soon as `-Zfixed-x18` compiler flag is supplied, the [`ShadowCallStack` sanitizer](https://releases.llvm.org/7.0.1/tools/clang/docs/ShadowCallStack.html) +instrumentation is also made avaiable by supplying the second compiler flag `-Zsanitizer=shadow-call-stack`. |