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authorGuillaume Gomez <guillaume1.gomez@gmail.com>2025-07-21 14:34:12 +0200
committerGuillaume Gomez <guillaume1.gomez@gmail.com>2025-07-22 14:28:48 +0200
commita27f3e3fd1e4d16160f8885b6b06665b5319f56c (patch)
treeb033935392cbadf6f85d2dbddf433a88e323aeeb /tests/codegen-llvm/pie-relocation-model.rs
parented93c1783b404d728d4809973a0550eb33cd293f (diff)
downloadrust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.tar.gz
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Rename `tests/codegen` into `tests/codegen-llvm`
Diffstat (limited to 'tests/codegen-llvm/pie-relocation-model.rs')
-rw-r--r--tests/codegen-llvm/pie-relocation-model.rs22
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/codegen-llvm/pie-relocation-model.rs b/tests/codegen-llvm/pie-relocation-model.rs
new file mode 100644
index 00000000000..cb8de91ccd7
--- /dev/null
+++ b/tests/codegen-llvm/pie-relocation-model.rs
@@ -0,0 +1,22 @@
+//@ compile-flags: -C relocation-model=pie -Copt-level=0
+//@ only-x86_64-unknown-linux-gnu
+
+#![crate_type = "rlib"]
+
+// With PIE we know local functions cannot be interpositioned, we can mark them
+// as dso_local.
+// CHECK: define dso_local i8 @call_foreign_fn()
+#[no_mangle]
+pub fn call_foreign_fn() -> u8 {
+    unsafe { foreign_fn() }
+}
+
+// External functions are still marked as non-dso_local, since we don't know if the symbol
+// is defined in the binary or in the shared library.
+// CHECK: declare i8 @foreign_fn()
+extern "C" {
+    fn foreign_fn() -> u8;
+}
+
+// CHECK: !{i32 {{[78]}}, !"PIC Level", i32 2}
+// CHECK: !{i32 7, !"PIE Level", i32 2}