linux-kernel - [PATCH] kbuild: rust: use `-Zdebuginfo-compression`

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Date: Sat, 17 Feb 2024 01:26:22 +0100
From: Miguel Ojeda <ojeda@...nel.org>
To: Miguel Ojeda <ojeda@...nel.org>,
	Wedson Almeida Filho <wedsonaf@...il.com>,
	Alex Gaynor <alex.gaynor@...il.com>
Cc: Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...sung.com>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Masahiro Yamada <masahiroy@...nel.org>,
	linux-kbuild@...r.kernel.org,
	rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	patches@...ts.linux.dev
Subject: [PATCH] kbuild: rust: use `-Zdebuginfo-compression`

Rust 1.74.0 introduced (unstable) support for the
`-Zdebuginfo-compression` flag, thus use it.

Link: https://github.com/rust-lang/rust/issues/120953
Link: https://github.com/rust-lang/rust/pull/115358
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
---
 scripts/Makefile.debug | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/Makefile.debug b/scripts/Makefile.debug
index 059ff38fe0cb..1f96af51f936 100644
--- a/scripts/Makefile.debug
+++ b/scripts/Makefile.debug
@@ -29,10 +29,12 @@ endif
 
 ifdef CONFIG_DEBUG_INFO_COMPRESSED_ZLIB
 DEBUG_CFLAGS	+= -gz=zlib
+DEBUG_RUSTFLAGS	+= -Zdebuginfo-compression=zlib
 KBUILD_AFLAGS	+= -gz=zlib
 KBUILD_LDFLAGS	+= --compress-debug-sections=zlib
 else ifdef CONFIG_DEBUG_INFO_COMPRESSED_ZSTD
 DEBUG_CFLAGS	+= -gz=zstd
+DEBUG_RUSTFLAGS	+= -Zdebuginfo-compression=zstd
 KBUILD_AFLAGS	+= -gz=zstd
 KBUILD_LDFLAGS	+= --compress-debug-sections=zstd
 endif

base-commit: 841c35169323cd833294798e58b9bf63fa4fa1de
-- 
2.43.0