From: Andreas Hindborg <a.hindborg@samsung.com>
Date: Thu, 15 Aug 2024 07:49:30 +0000 (+0000)
Subject: rust: kbuild: fix export of bss symbols
X-Git-Tag: v6.11-rc7~29^2~9
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b8673d56935c32a4e0a1a0b40951fdd313dbf340;p=thirdparty%2Flinux.git

rust: kbuild: fix export of bss symbols

Symbols in the bss segment are not currently exported. This is a problem
for Rust modules that link against statics, that are resident in the kernel
image. Thus export symbols in the bss segment.

Fixes: 2f7ab1267dc9 ("Kbuild: add Rust support")
Signed-off-by: Andreas Hindborg <a.hindborg@samsung.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/r/20240815074519.2684107-2-nmi@metaspace.dk
[ Reworded slightly. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
---

diff --git a/rust/Makefile b/rust/Makefile
index 8de3ebba95512..f168d2c98a15f 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -305,7 +305,7 @@ $(obj)/bindings/bindings_helpers_generated.rs: $(src)/helpers.c FORCE
 quiet_cmd_exports = EXPORTS $@
       cmd_exports = \
 	$(NM) -p --defined-only $< \
-		| awk '/ (T|R|D) / {printf "EXPORT_SYMBOL_RUST_GPL(%s);\n",$$3}' > $@
+		| awk '/ (T|R|D|B) / {printf "EXPORT_SYMBOL_RUST_GPL(%s);\n",$$3}' > $@
 
 $(obj)/exports_core_generated.h: $(obj)/core.o FORCE
 	$(call if_changed,exports)