rust/tests/codegen/sanitizer-cfi-add-canonical-jump-tables-flag.rs

// Verifies that "CFI Canonical Jump Tables" module flag is added.
//
// needs-sanitizer-cfi
// compile-flags: -Clto -Ctarget-feature=-crt-static -Zsanitizer=cfi

#![crate_type="lib"]

pub fn foo() {
}

// CHECK: !{{[0-9]+}} = !{i32 2, !"CFI Canonical Jump Tables", i32 1}
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). 2021-10-07 17:33:13 -05:00			`// Verifies that "CFI Canonical Jump Tables" module flag is added.`
			`//`
			`// needs-sanitizer-cfi`
Add fine-grained LLVM CFI support to the Rust compiler This commit improves the LLVM Control Flow Integrity (CFI) support in the Rust compiler by providing forward-edge control flow protection for Rust-compiled code only by aggregating function pointers in groups identified by their return and parameter types. 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 identifying C char and integer type uses at the time types are encoded (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). 2022-04-01 00:50:41 -05:00			`// compile-flags: -Clto -Ctarget-feature=-crt-static -Zsanitizer=cfi`
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). 2021-10-07 17:33:13 -05:00
			`#![crate_type="lib"]`

			`pub fn foo() {`
			`}`

			`// CHECK: !{{[0-9]+}} = !{i32 2, !"CFI Canonical Jump Tables", i32 1}`