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authorbors <bors@rust-lang.org>2021-12-29 22:35:11 +0000
committerbors <bors@rust-lang.org>2021-12-29 22:35:11 +0000
commitd331cb710f0dd969d779510a49a3bafc7f78a54e (patch)
treeff97d24d16d1380b3fea3dd0ae3cbb23828596ba /src/test/codegen
parent78fd0f633faaa5b6dd254fc1456735f63a1b1238 (diff)
parent984ca4689dbceea29bbfcf54c4743b45fccf7ad1 (diff)
downloadrust-d331cb710f0dd969d779510a49a3bafc7f78a54e.tar.gz
rust-d331cb710f0dd969d779510a49a3bafc7f78a54e.zip
Auto merge of #88354 - Jmc18134:hint-space-pauth-opt, r=nagisa
Add codegen option for branch protection and pointer authentication on AArch64

The branch-protection codegen option enables the use of hint-space pointer
authentication code for AArch64 targets.
Diffstat (limited to 'src/test/codegen')
-rw-r--r--src/test/codegen/branch-protection.rs41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/test/codegen/branch-protection.rs b/src/test/codegen/branch-protection.rs
new file mode 100644
index 00000000000..106c9b148ee
--- /dev/null
+++ b/src/test/codegen/branch-protection.rs
@@ -0,0 +1,41 @@
+// Test that the correct module flags are emitted with different branch protection flags.
+
+// revisions: bti pac-ret leaf b-key
+// min-llvm-version: 12.0.0
+// needs-llvm-components: aarch64
+// [bti] compile-flags: -Z branch-protection=bti
+// [pac-ret] compile-flags: -Z branch-protection=pac-ret
+// [leaf] compile-flags: -Z branch-protection=pac-ret,leaf
+// [b-key] compile-flags: -Z branch-protection=pac-ret,b-key
+// compile-flags: --target aarch64-unknown-linux-gnu
+
+#![crate_type = "lib"]
+#![feature(no_core, lang_items)]
+#![no_core]
+
+#[lang="sized"]
+trait Sized { }
+
+// A basic test function.
+pub fn test() {
+}
+
+// bti: !"branch-target-enforcement", i32 1
+// bti: !"sign-return-address", i32 0
+// bti: !"sign-return-address-all", i32 0
+// bti: !"sign-return-address-with-bkey", i32 0
+
+// pac-ret: !"branch-target-enforcement", i32 0
+// pac-ret: !"sign-return-address", i32 1
+// pac-ret: !"sign-return-address-all", i32 0
+// pac-ret: !"sign-return-address-with-bkey", i32 0
+
+// leaf: !"branch-target-enforcement", i32 0
+// leaf: !"sign-return-address", i32 1
+// leaf: !"sign-return-address-all", i32 1
+// leaf: !"sign-return-address-with-bkey", i32 0
+
+// b-key: !"branch-target-enforcement", i32 0
+// b-key: !"sign-return-address", i32 1
+// b-key: !"sign-return-address-all", i32 0
+// b-key: !"sign-return-address-with-bkey", i32 1