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mikros/rust

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Sync from rust (#107) * Rebase fallout. * Move rustc_middle::middle::cstore to rustc_session. * Create more accurate debuginfo for vtables. Before this commit all vtables would have the same name "vtable" in debuginfo. Now they get a name that identifies the implementing type and the trait that is being implemented. * Remove alloc::prelude As per the libs team decision in #58935. Closes #58935 * Make hash_result an Option. * Properly check `target_features` not to trigger an assertion * Add LLVM CFI support to the Rust compiler This commit adds LLVM Control Flow Integrity (CFI) support to the Rust compiler. It initially provides forward-edge control flow protection for Rust-compiled code only by aggregating function pointers in groups identified by their number of arguments. Forward-edge control flow protection for C or C++ and Rust -compiled code "mixed binaries" (i.e., for when C or C++ and Rust -compiled code share the same virtual address space) will be provided in later work as part of this project by defining and using compatible type identifiers (see Type metadata in the design document in the tracking issue #89653). LLVM CFI can be enabled with -Zsanitizer=cfi and requires LTO (i.e., -Clto). * Update to nightly-2021-10-30 * Add deduplication of constant values as rustc relies on LLVM doing that Co-authored-by: Camille GILLOT <gillot.camille@gmail.com> Co-authored-by: Michael Woerister <michaelwoerister@posteo> Co-authored-by: Amanieu d'Antras <amanieu@gmail.com> Co-authored-by: Yuki Okushi <yuki.okushi@huawei.com> Co-authored-by: Ramon de C Valle <rcvalle@users.noreply.github.com>

2021-10-30 17:21:33 -05:00

nightly-2021-10-30