23 lines
664 B
Rust
23 lines
664 B
Rust
//@ 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}
|