From 06a41687b160cbb4cbf8fce0b3ad3a2e352e8338 Mon Sep 17 00:00:00 2001 From: WANG Rui Date: Thu, 14 Dec 2023 22:07:53 +0800 Subject: Add unstable `-Z direct-access-external-data` cmdline flag for `rustc` The new flag has been described in the Major Change Proposal at https://github.com/rust-lang/compiler-team/issues/707 --- tests/codegen/direct-access-external-data.rs | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 tests/codegen/direct-access-external-data.rs (limited to 'tests/codegen') diff --git a/tests/codegen/direct-access-external-data.rs b/tests/codegen/direct-access-external-data.rs new file mode 100644 index 00000000000..ec4bfc33518 --- /dev/null +++ b/tests/codegen/direct-access-external-data.rs @@ -0,0 +1,21 @@ +// only-loongarch64-unknown-linux-gnu + +// revisions: DEFAULT DIRECT INDIRECT +// [DEFAULT] compile-flags: -C relocation-model=static +// [DIRECT] compile-flags: -C relocation-model=static -Z direct-access-external-data=yes +// [INDIRECT] compile-flags: -C relocation-model=static -Z direct-access-external-data=no + +#![crate_type = "rlib"] + +// DEFAULT: @VAR = external {{.*}} global i32 +// DIRECT: @VAR = external dso_local {{.*}} global i32 +// INDIRECT: @VAR = external {{.*}} global i32 + +extern "C" { + static VAR: i32; +} + +#[no_mangle] +pub fn get() -> i32 { + unsafe { VAR } +} -- cgit 1.4.1-3-g733a5