b/t/llvm-efi: make fltused symbol weak
Rust's libcore for UEFI ships this hack as well, causing a duplicate
symbol error when linking. Marking this weak is also enough for clang to
keep this for linking, so the separate used attribute is not needed.
Change-Id: I1f6aad626b235bbe1e613c5427b8c4fbd0dc330e
Reviewed-on: https://review.monogon.dev/c/monogon/+/2102
Tested-by: Jenkins CI
Reviewed-by: Serge Bazanski <serge@monogon.tech>
diff --git a/build/toolchain/llvm-efi/fltused.c b/build/toolchain/llvm-efi/fltused.c
index a6ca646..6934b9e 100644
--- a/build/toolchain/llvm-efi/fltused.c
+++ b/build/toolchain/llvm-efi/fltused.c
@@ -3,4 +3,4 @@
// it we can just define it as zero.
// See https://github.com/rust-lang/rust/issues/62785#issuecomment-531186089 for more discussion.
// Since building static libraries is not possible with Bazel this is compiled and checked in.
-int _fltused __attribute__((used)) = 0;
\ No newline at end of file
+int _fltused __attribute__((weak)) = 0;
\ No newline at end of file
diff --git a/build/toolchain/llvm-efi/fltused.o b/build/toolchain/llvm-efi/fltused.o
index bb55d4c..68faed5 100644
--- a/build/toolchain/llvm-efi/fltused.o
+++ b/build/toolchain/llvm-efi/fltused.o
Binary files differ