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kbuild: rust: use `-Zdwarf-version` to support DWARFv5

Message ID 20240217002602.57270-1-ojeda@kernel.org (mailing list archive)
State New
Headers show
Series kbuild: rust: use `-Zdwarf-version` to support DWARFv5 | expand

Commit Message

Miguel Ojeda Feb. 17, 2024, 12:26 a.m. UTC 
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(+)


base-commit: 841c35169323cd833294798e58b9bf63fa4fa1de

Comments

Miguel Ojeda March 29, 2024, 7:48 p.m. UTC | #1 
On Sat, Feb 17, 2024 at 1:26 AM Miguel Ojeda <ojeda@kernel.org> wrote:
>
> 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>

Applied to `rust-next` -- please feel free to still send reviews or
tested-bys for this one!

Cheers,
Miguel
Alice Ryhl April 2, 2024, 9:55 a.m. UTC | #2 
On Sat, Feb 17, 2024 at 1:26 AM Miguel Ojeda <ojeda@kernel.org> wrote:
>
> 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>

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
diff mbox series

Patch

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