| //@ revisions: x64 |
| //@ assembly-output: emit-asm |
| //@ [x64] compile-flags: --target x86_64-unknown-linux-gnu -Crelocation-model=pie |
| //@ [x64] needs-llvm-components: x86 |
| |
| #![feature(no_core, lang_items)] |
| #![no_core] |
| #![crate_type = "rlib"] |
| |
| #[lang = "sized"] |
| trait Sized {} |
| #[lang = "copy"] |
| trait Copy {} |
| |
| // CHECK-LABEL: call_other_fn: |
| // With PIE local functions are called "directly". |
| // CHECK: {{(jmp|callq)}} other_fn |
| #[no_mangle] |
| pub fn call_other_fn() -> u8 { |
| unsafe { other_fn() } |
| } |
| |
| // CHECK-LABEL: other_fn: |
| // External functions are still called through GOT, since we don't know if the symbol |
| // is defined in the binary or in the shared library. |
| // CHECK: callq *foreign_fn@GOTPCREL(%rip) |
| #[no_mangle] |
| #[inline(never)] |
| pub fn other_fn() -> u8 { |
| unsafe { foreign_fn() } |
| } |
| |
| extern "C" { |
| fn foreign_fn() -> u8; |
| } |
