diff options
| author | Miguel Ojeda <ojeda@kernel.org> | 2026-02-06 21:45:35 +0100 |
|---|---|---|
| committer | Miguel Ojeda <ojeda@kernel.org> | 2026-02-10 09:13:31 +0100 |
| commit | 0a9be83e57de0d0ca8ca4ec610bc344f17a8e5e7 (patch) | |
| tree | 2c524e73298f415d608a699398e39cdd0f4684f4 /rust | |
| parent | 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b (diff) | |
rust: kbuild: pass `-Zunstable-options` for Rust 1.95.0
Custom target specifications are unstable, but starting with Rust 1.95.0,
`rustc` requires to explicitly pass `-Zunstable-options` to use them [1]:
error: error loading target specification: custom targets are unstable and require `-Zunstable-options`
|
= help: run `rustc --print target-list` for a list of built-in targets
David (Rust compiler team lead), writes:
"We're destabilising custom targets to allow us to move forward with
build-std without accidentally exposing functionality that we'd like
to revisit prior to committing to. I'll start a thread on Zulip to
discuss with the RfL team how we can come up with an alternative
for them."
Thus pass it.
Cc: David Wood <david@davidtw.co>
Cc: Wesley Wiser <wwiser@gmail.com>
Cc: stable@vger.kernel.org # Needed in 6.12.y and later (Rust is pinned in older LTSs).
Link: https://github.com/rust-lang/rust/pull/151534 [1]
Reviewed-by: Gary Guo <gary@garyguo.net>
Tested-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260206204535.39431-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'rust')
| -rw-r--r-- | rust/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/rust/Makefile b/rust/Makefile index 4dcc2eff51cb..725158740fc6 100644 --- a/rust/Makefile +++ b/rust/Makefile @@ -552,6 +552,8 @@ $(obj)/$(libpin_init_internal_name): private rustc_target_flags = --cfg kernel $(obj)/$(libpin_init_internal_name): $(src)/pin-init/internal/src/lib.rs FORCE +$(call if_changed_dep,rustc_procmacro) +# `rustc` requires `-Zunstable-options` to use custom target specifications +# since Rust 1.95.0 (https://github.com/rust-lang/rust/pull/151534). quiet_cmd_rustc_library = $(if $(skip_clippy),RUSTC,$(RUSTC_OR_CLIPPY_QUIET)) L $@ cmd_rustc_library = \ OBJTREE=$(abspath $(objtree)) \ @@ -562,6 +564,7 @@ quiet_cmd_rustc_library = $(if $(skip_clippy),RUSTC,$(RUSTC_OR_CLIPPY_QUIET)) L --crate-type rlib -L$(objtree)/$(obj) \ --crate-name $(patsubst %.o,%,$(notdir $@)) $< \ --sysroot=/dev/null \ + -Zunstable-options \ $(if $(rustc_objcopy),;$(OBJCOPY) $(rustc_objcopy) $@) \ $(cmd_objtool) |