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2025-03-11Rollup merge of #138002 - 1c3t3a:fix-std-cfi-violation, r=rcvalleMatthias Krüger-0/+14
Disable CFI for weakly linked syscalls Currently, when enabling CFI via -Zsanitizer=cfi and executing e.g. std::sys::random::getrandom, we can observe a CFI violation. This is the case for all consumers of the std::sys::pal::weak::syscall macro, as it is defining weak functions which don't show up in LLVM IR metadata. CFI fails for all these functions. Similar to other such cases in https://github.com/rust-lang/rust/issues/115199, this change stops emitting the CFI typecheck for consumers of the macro via the `#[no_sanitize(cfi)]` attribute. r? ``````@rcvalle``````
2025-03-10Add comments for #[no_sanitize(cfi)] in stdlibBastian Kersting-0/+2
2025-03-10Disable CFI for weakly linked syscallsBastian Kersting-0/+12
Currently, when enabling CFI via -Zsanitizer=cfi and executing e.g. std::sys::random::getrandom, we can observe a CFI violation. This is the case for all consumers of the std::sys::pal::weak::weak macro, as it is defining weak functions which don't show up in LLVM IR metadata. CFI fails for all these functions. Similar to other such cases in https://github.com/rust-lang/rust/issues/115199, this change stops emitting the CFI typecheck for consumers of the macro via the \#[no_sanitize(cfi)] attribute.
2025-03-09Support File::seek for HermitThalia Archibald-3/+3
2025-03-08Move fs into sysThalia Archibald-0/+7124