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| author | bors <bors@rust-lang.org> | 2022-07-23 20:01:07 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2022-07-23 20:01:07 +0000 |
| commit | 93ffde6f04d3d24327a4e17a2a2bf4f63c246235 (patch) | |
| tree | 138c07c7746a3584c785e1f22d008805b342f4e0 /compiler/rustc_session/src | |
| parent | 0e7c843da4b7628b8becd96970f22b57dd400ace (diff) | |
| parent | adf61e3b2b72f4a06b3ac5cf90d49deda42da605 (diff) | |
| download | rust-93ffde6f04d3d24327a4e17a2a2bf4f63c246235.tar.gz rust-93ffde6f04d3d24327a4e17a2a2bf4f63c246235.zip | |
Auto merge of #98208 - ivanloz:master, r=nagisa
Add support for LLVM ShadowCallStack. LLVMs ShadowCallStack provides backward edge control flow integrity protection by using a separate shadow stack to store and retrieve a function's return address. LLVM currently only supports this for AArch64 targets. The x18 register is used to hold the pointer to the shadow stack, and therefore this only works on ABIs which reserve x18. Further details are available in the [LLVM ShadowCallStack](https://clang.llvm.org/docs/ShadowCallStack.html) docs. # Usage `-Zsanitizer=shadow-call-stack` # Comments/Caveats * Currently only enabled for the aarch64-linux-android target * Requires the platform to define a runtime to initialize the shadow stack, see the [LLVM docs](https://clang.llvm.org/docs/ShadowCallStack.html) for more detail.
Diffstat (limited to 'compiler/rustc_session/src')
| -rw-r--r-- | compiler/rustc_session/src/options.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 21b1b0b4ebf..1b583417ca0 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -377,7 +377,7 @@ mod desc { pub const parse_opt_panic_strategy: &str = parse_panic_strategy; pub const parse_oom_strategy: &str = "either `panic` or `abort`"; pub const parse_relro_level: &str = "one of: `full`, `partial`, or `off`"; - pub const parse_sanitizers: &str = "comma separated list of sanitizers: `address`, `cfi`, `hwaddress`, `leak`, `memory`, `memtag`, or `thread`"; + pub const parse_sanitizers: &str = "comma separated list of sanitizers: `address`, `cfi`, `hwaddress`, `leak`, `memory`, `memtag`, `shadow-call-stack`, or `thread`"; pub const parse_sanitizer_memory_track_origins: &str = "0, 1, or 2"; pub const parse_cfguard: &str = "either a boolean (`yes`, `no`, `on`, `off`, etc), `checks`, or `nochecks`"; @@ -683,6 +683,7 @@ mod parse { "leak" => SanitizerSet::LEAK, "memory" => SanitizerSet::MEMORY, "memtag" => SanitizerSet::MEMTAG, + "shadow-call-stack" => SanitizerSet::SHADOWCALLSTACK, "thread" => SanitizerSet::THREAD, "hwaddress" => SanitizerSet::HWADDRESS, _ => return false, |