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: rust-lang/rust#103057 Link: rust-lang/rust#98350 Signed-off-by: Miguel Ojeda <[email protected]> Link: https://lore.kernel.org/r/[email protected]
Rust-for-Linux · Feb 17, 2024 · bbe370f · bbe370f
1 parent 34d54d9
commit bbe370f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git 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