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From: Miguel Ojeda <ojeda@kernel.org>
To: Miguel Ojeda <ojeda@kernel.org>,
	Wedson Almeida Filho <wedsonaf@gmail.com>,
	Alex Gaynor <alex.gaynor@gmail.com>
Cc: "Boqun Feng" <boqun.feng@gmail.com>,
	"Gary Guo" <gary@garyguo.net>,
	"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
	"Benno Lossin" <benno.lossin@proton.me>,
	"Andreas Hindborg" <a.hindborg@samsung.com>,
	"Alice Ryhl" <aliceryhl@google.com>,
	"Masahiro Yamada" <masahiroy@kernel.org>,
	linux-kbuild@vger.kernel.org, rust-for-linux@vger.kernel.org,
	linux-kernel@vger.kernel.org, patches@lists.linux.dev
Subject: [PATCH] kbuild: rust: use `-Zdwarf-version` to support DWARFv5
Date: Sat, 17 Feb 2024 01:26:02 +0100	[thread overview]
Message-ID: <20240217002602.57270-1-ojeda@kernel.org> (raw)

Rust 1.64.0 introduced (unstable) support for the `-Zdwarf-version`
flag, which allows to select DWARFv5, thus use it.

Link: https://github.com/rust-lang/rust/issues/103057
Link: https://github.com/rust-lang/rust/pull/98350
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
---
 scripts/Makefile.debug | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/Makefile.debug b/scripts/Makefile.debug
index 059ff38fe0cb..693452bc826a 100644
--- a/scripts/Makefile.debug
+++ b/scripts/Makefile.debug
@@ -17,6 +17,12 @@ endif
 DEBUG_CFLAGS	+= $(debug-flags-y)
 KBUILD_AFLAGS	+= $(debug-flags-y)
 
+ifdef CONFIG_DEBUG_INFO_DWARF4
+DEBUG_RUSTFLAGS	+= -Zdwarf-version=4
+else ifdef CONFIG_DEBUG_INFO_DWARF5
+DEBUG_RUSTFLAGS	+= -Zdwarf-version=5
+endif
+
 ifdef CONFIG_DEBUG_INFO_REDUCED
 DEBUG_CFLAGS	+= -fno-var-tracking
 DEBUG_RUSTFLAGS	+= -Cdebuginfo=1

base-commit: 841c35169323cd833294798e58b9bf63fa4fa1de
-- 
2.43.0


             reply	other threads:[~2024-02-17  0:26 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-17  0:26 Miguel Ojeda [this message]
2024-03-29 19:48 ` [PATCH] kbuild: rust: use `-Zdwarf-version` to support DWARFv5 Miguel Ojeda
2024-04-02  9:55 ` Alice Ryhl

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