diff options
Diffstat (limited to 'tests/ui/issues/issue-18804')
-rw-r--r-- | tests/ui/issues/issue-18804/auxiliary/lib.rs | 10 | ||||
-rw-r--r-- | tests/ui/issues/issue-18804/main.rs | 19 |
2 files changed, 29 insertions, 0 deletions
diff --git a/tests/ui/issues/issue-18804/auxiliary/lib.rs b/tests/ui/issues/issue-18804/auxiliary/lib.rs new file mode 100644 index 000000000..e29d48285 --- /dev/null +++ b/tests/ui/issues/issue-18804/auxiliary/lib.rs @@ -0,0 +1,10 @@ +#![crate_type = "rlib"] +#![feature(linkage)] + +pub fn foo<T>() -> *const () { + extern "C" { + #[linkage = "extern_weak"] + static FOO: *const (); + } + unsafe { FOO } +} diff --git a/tests/ui/issues/issue-18804/main.rs b/tests/ui/issues/issue-18804/main.rs new file mode 100644 index 000000000..c36048ea5 --- /dev/null +++ b/tests/ui/issues/issue-18804/main.rs @@ -0,0 +1,19 @@ +// run-pass +// Test for issue #18804, #[linkage] does not propagate through generic +// functions. Failure results in a linker error. + +// ignore-asmjs no weak symbol support +// ignore-emscripten no weak symbol support +// ignore-windows no extern_weak linkage +// ignore-macos no extern_weak linkage + +// aux-build:lib.rs + +// rust-lang/rust#56772: nikic says we need this to be proper test. +// compile-flags: -C no-prepopulate-passes -C passes=name-anon-globals + +extern crate lib; + +fn main() { + lib::foo::<i32>(); +} |