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| author | Miguel Ojeda <ojeda@kernel.org> | 2024-02-17 01:26:22 +0100 |
|---|---|---|
| committer | Miguel Ojeda <ojeda@kernel.org> | 2024-04-02 17:41:22 +0200 |
| commit | dbef1811c8865562127a6e04c3364f35ceaaa94d (patch) | |
| tree | 60fc001a09d231627e14dd230cab4273bef68863 /scripts/Makefile.debug | |
| parent | b8b2096ab8fd975f4d6889ecd14f9f10ba9c8839 (diff) | |
| download | linux-stable-dbef1811c8865562127a6e04c3364f35ceaaa94d.tar.gz linux-stable-dbef1811c8865562127a6e04c3364f35ceaaa94d.tar.bz2 linux-stable-dbef1811c8865562127a6e04c3364f35ceaaa94d.zip | |
kbuild: rust: use `-Zdebuginfo-compression`
Rust 1.74.0 introduced (unstable) support for the
`-Zdebuginfo-compression` flag, thus use it.
Note that the releases built by the Rust project (i.e. the ones provided
by rustup) do not enable support for zstd in their bundled LLVM (yet,
at least), thus the Rust compiler will warn, but the build will proceed:
warning: unknown debuginfo compression algorithm zstd - will fall
back to uncompressed debuginfo
Link: https://github.com/rust-lang/rust/issues/120953
Link: https://github.com/rust-lang/rust/pull/115358
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20240217002622.57322-1-ojeda@kernel.org
[ Added note about zstd support in Rust-provided binaries. ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'scripts/Makefile.debug')
| -rw-r--r-- | scripts/Makefile.debug | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/scripts/Makefile.debug b/scripts/Makefile.debug index 693452bc826a..107db997ce38 100644 --- a/scripts/Makefile.debug +++ b/scripts/Makefile.debug @@ -35,10 +35,12 @@ 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 |