From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/codegen/pie-relocation-model.rs | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 tests/codegen/pie-relocation-model.rs (limited to 'tests/codegen/pie-relocation-model.rs') diff --git a/tests/codegen/pie-relocation-model.rs b/tests/codegen/pie-relocation-model.rs new file mode 100644 index 000000000..941cca922 --- /dev/null +++ b/tests/codegen/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 zeroext i8 @foreign_fn() +extern "C" {fn foreign_fn() -> u8;} + +// CHECK: !{i32 {{[78]}}, !"PIC Level", i32 2} +// CHECK: !{i32 7, !"PIE Level", i32 2} -- cgit v1.2.3