diff options
Diffstat (limited to 'tests/run-make/lto-linkage-used-attr')
-rw-r--r-- | tests/run-make/lto-linkage-used-attr/Makefile | 9 | ||||
-rw-r--r-- | tests/run-make/lto-linkage-used-attr/lib.rs | 50 | ||||
-rw-r--r-- | tests/run-make/lto-linkage-used-attr/main.rs | 10 |
3 files changed, 69 insertions, 0 deletions
diff --git a/tests/run-make/lto-linkage-used-attr/Makefile b/tests/run-make/lto-linkage-used-attr/Makefile new file mode 100644 index 000000000..e78b83890 --- /dev/null +++ b/tests/run-make/lto-linkage-used-attr/Makefile @@ -0,0 +1,9 @@ +include ../tools.mk + +# Verify that the impl_* symbols are preserved. #108030 +# only-x86_64-unknown-linux-gnu +# min-llvm-version: 17 + +all: + $(RUSTC) -Cdebuginfo=0 -Copt-level=3 lib.rs + $(RUSTC) -Clto=fat -Cdebuginfo=0 -Copt-level=3 main.rs diff --git a/tests/run-make/lto-linkage-used-attr/lib.rs b/tests/run-make/lto-linkage-used-attr/lib.rs new file mode 100644 index 000000000..0a92ea9cd --- /dev/null +++ b/tests/run-make/lto-linkage-used-attr/lib.rs @@ -0,0 +1,50 @@ +#![crate_type = "rlib"] +#![crate_type = "cdylib"] + +#[macro_export] +macro_rules! asm_func { + ($name:expr, $body:expr $(, $($args:tt)*)?) => { + core::arch::global_asm!( + concat!( + ".p2align 4\n", + ".hidden ", $name, "\n", + ".global ", $name, "\n", + ".type ", $name, ",@function\n", + $name, ":\n", + $body, + ".size ", $name, ",.-", $name, + ) + $(, $($args)*)? + ); + }; +} + +macro_rules! libcall_trampoline { + ($libcall:ident ; $libcall_impl:ident) => { + asm_func!( + stringify!($libcall), + concat!( + " + .cfi_startproc simple + .cfi_def_cfa_offset 0 + jmp {} + .cfi_endproc + ", + ), + sym $libcall_impl + ); + }; +} + +pub mod trampolines { + extern "C" { + pub fn table_fill_funcref(); + pub fn table_fill_externref(); + } + + unsafe extern "C" fn impl_table_fill_funcref() {} + unsafe extern "C" fn impl_table_fill_externref() {} + + libcall_trampoline!(table_fill_funcref ; impl_table_fill_funcref); + libcall_trampoline!(table_fill_externref ; impl_table_fill_externref); +} diff --git a/tests/run-make/lto-linkage-used-attr/main.rs b/tests/run-make/lto-linkage-used-attr/main.rs new file mode 100644 index 000000000..256b02e5b --- /dev/null +++ b/tests/run-make/lto-linkage-used-attr/main.rs @@ -0,0 +1,10 @@ +extern crate lib; + +use lib::trampolines::*; + +fn main() { + unsafe { + table_fill_externref(); + table_fill_funcref(); + } +} |