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| author | Felix S. Klock II <pnkfelix@pnkfx.org> | 2019-05-27 12:08:10 +0200 |
|---|---|---|
| committer | Felix S. Klock II <pnkfelix@pnkfx.org> | 2019-05-27 12:10:58 +0200 |
| commit | c8887abf20f72631eeeb72eaf14fa27fc4e550fa (patch) | |
| tree | db6cfececf4103517656b532c4b7e861153ed73d /src | |
| parent | 4e60f53280c34d35c29b007b28e32b9a6f695d1b (diff) | |
| download | rust-c8887abf20f72631eeeb72eaf14fa27fc4e550fa.tar.gz rust-c8887abf20f72631eeeb72eaf14fa27fc4e550fa.zip | |
Tests for external linkage symbol collision check.
Fix #61232
Diffstat (limited to 'src')
5 files changed, 67 insertions, 0 deletions
diff --git a/src/test/ui/linkage-attr/auxiliary/def_colliding_external.rs b/src/test/ui/linkage-attr/auxiliary/def_colliding_external.rs new file mode 100644 index 00000000000..bbbfc485791 --- /dev/null +++ b/src/test/ui/linkage-attr/auxiliary/def_colliding_external.rs @@ -0,0 +1,7 @@ +#![feature(linkage)] +#![crate_type = "lib"] + +extern { + #[linkage="external"] + pub static collision: *const i32; +} diff --git a/src/test/ui/linkage-attr/linkage-detect-extern-generated-name-collision.rs b/src/test/ui/linkage-attr/linkage-detect-extern-generated-name-collision.rs new file mode 100644 index 00000000000..85a9a336b0d --- /dev/null +++ b/src/test/ui/linkage-attr/linkage-detect-extern-generated-name-collision.rs @@ -0,0 +1,21 @@ +// rust-lang/rust#61232: We used to ICE when trying to detect a +// collision on the symbol generated for the external linkage item in +// an extern crate. + +// aux-build:def_colliding_external.rs + +extern crate def_colliding_external as dep1; + +#[no_mangle] +pub static _rust_extern_with_linkage_collision: i32 = 0; + +mod dep2 { + #[no_mangle] + pub static collision: usize = 0; +} + +fn main() { + unsafe { + println!("{:p}", &dep1::collision); + } +} diff --git a/src/test/ui/linkage-attr/linkage-detect-extern-generated-name-collision.stderr b/src/test/ui/linkage-attr/linkage-detect-extern-generated-name-collision.stderr new file mode 100644 index 00000000000..dcb954a4bc0 --- /dev/null +++ b/src/test/ui/linkage-attr/linkage-detect-extern-generated-name-collision.stderr @@ -0,0 +1,8 @@ +error: symbol `collision` is already defined + --> $DIR/auxiliary/def_colliding_external.rs:6:5 + | +LL | pub static collision: *const i32; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to previous error + diff --git a/src/test/ui/linkage-attr/linkage-detect-local-generated-name-collision.rs b/src/test/ui/linkage-attr/linkage-detect-local-generated-name-collision.rs new file mode 100644 index 00000000000..dc15798e16a --- /dev/null +++ b/src/test/ui/linkage-attr/linkage-detect-local-generated-name-collision.rs @@ -0,0 +1,23 @@ +#![feature(linkage)] + +mod dep1 { + extern { + #[linkage="external"] + #[no_mangle] + pub static collision: *const i32; //~ ERROR symbol `collision` is already defined + } +} + +#[no_mangle] +pub static _rust_extern_with_linkage_collision: i32 = 0; + +mod dep2 { + #[no_mangle] + pub static collision: usize = 0; +} + +fn main() { + unsafe { + println!("{:p}", &dep1::collision); + } +} diff --git a/src/test/ui/linkage-attr/linkage-detect-local-generated-name-collision.stderr b/src/test/ui/linkage-attr/linkage-detect-local-generated-name-collision.stderr new file mode 100644 index 00000000000..117c76f7f26 --- /dev/null +++ b/src/test/ui/linkage-attr/linkage-detect-local-generated-name-collision.stderr @@ -0,0 +1,8 @@ +error: symbol `collision` is already defined + --> $DIR/linkage-detect-local-generated-name-collision.rs:7:9 + | +LL | pub static collision: *const i32; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to previous error + |