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Diffstat (limited to 'tests/assembly-llvm/pie-relocation-model.rs')
| -rw-r--r-- | tests/assembly-llvm/pie-relocation-model.rs | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/tests/assembly-llvm/pie-relocation-model.rs b/tests/assembly-llvm/pie-relocation-model.rs new file mode 100644 index 00000000000..cbe0001041e --- /dev/null +++ b/tests/assembly-llvm/pie-relocation-model.rs @@ -0,0 +1,34 @@ +//@ add-core-stubs +//@ 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"] + +extern crate minicore; +use minicore::*; + +// 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: {{(jmpq|callq)}} *foreign_fn@GOTPCREL(%rip) +#[no_mangle] +#[inline(never)] +pub fn other_fn() -> u8 { + unsafe { foreign_fn() } +} + +extern "C" { + fn foreign_fn() -> u8; +} |
