352b505f80
Add a test confirming that `-Zbranch-protection=pac-ret` and cross-language LTO work together.
37 lines
1.2 KiB
Rust
37 lines
1.2 KiB
Rust
// `-Z branch protection` is an unstable compiler feature which adds pointer-authentication
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// code (PAC), a useful hashing measure for verifying that pointers have not been modified.
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// This test checks that compilation and execution is successful when this feature is activated,
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// with some of its possible extra arguments (bti, pac-ret, leaf) when doing LTO.
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// See https://github.com/rust-lang/rust/pull/88354
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//@ needs-force-clang-based-tests
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//@ only-aarch64
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// Reason: branch protection is not supported on other architectures
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//@ ignore-cross-compile
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// Reason: the compiled binary is executed
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use run_make_support::{clang, env_var, llvm_ar, run, rustc, static_lib_name};
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fn main() {
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clang()
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.arg("-v")
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.lto("thin")
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.arg("-mbranch-protection=bti+pac-ret+leaf")
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.arg("-O2")
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.arg("-c")
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.out_exe("test.o")
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.input("test.c")
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.run();
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llvm_ar().obj_to_ar().output_input(static_lib_name("test"), "test.o").run();
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rustc()
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.linker_plugin_lto("on")
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.opt_level("2")
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.linker(&env_var("CLANG"))
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.link_arg("-fuse-ld=lld")
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.arg("-Zbranch-protection=bti,pac-ret,leaf")
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.input("test.rs")
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.output("test.bin")
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.run();
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run("test.bin");
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}
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