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

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
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240217002602.57270-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This commit is contained in:
Miguel Ojeda 2024-02-17 01:26:02 +01:00
parent b481dd85f5
commit b8b2096ab8

View File

@ -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