a98546b961
Adds KCFI arity indicator support to the Rust compiler (see rust-lang/rust#138311, https://github.com/llvm/llvm-project/pull/121070, and https://lore.kernel.org/lkml/CANiq72=3ghFxy8E=AU9p+0imFxKr5iU3sd0hVUXed5BA+KjdNQ@mail.gmail.com/).
61 lines
1.6 KiB
Rust
61 lines
1.6 KiB
Rust
// Verifies that KCFI arity indicator is emitted.
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//
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//@ add-core-stubs
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//@ revisions: x86_64
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//@ assembly-output: emit-asm
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//@[x86_64] compile-flags: --target x86_64-unknown-linux-gnu -Cllvm-args=-x86-asm-syntax=intel -Ctarget-feature=-crt-static -Cpanic=abort -Zsanitizer=kcfi -Zsanitizer-kcfi-arity -Copt-level=0
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//@ [x86_64] needs-llvm-components: x86
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//@ min-llvm-version: 21.0.0
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#![crate_type = "lib"]
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pub fn add_one(x: i32) -> i32 {
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// CHECK-LABEL: __cfi__{{.*}}7add_one{{.*}}:
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: mov ecx, 2628068948
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x + 1
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}
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pub fn add_two(x: i32, _y: i32) -> i32 {
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// CHECK-LABEL: __cfi__{{.*}}7add_two{{.*}}:
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: mov edx, 2505940310
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x + 2
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}
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pub fn do_twice(f: fn(i32) -> i32, arg: i32) -> i32 {
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// CHECK-LABEL: __cfi__{{.*}}8do_twice{{.*}}:
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: nop
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// CHECK-NEXT: mov edx, 653723426
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f(arg) + f(arg)
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}
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