From: Miguel Ojeda <ojeda@kernel.org>
To: Miguel Ojeda <ojeda@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Nicolas Schier <nsc@kernel.org>
Cc: "Boqun Feng" <boqun@kernel.org>, "Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Danilo Krummrich" <dakr@kernel.org>,
rust-for-linux@vger.kernel.org, linux-kbuild@vger.kernel.org,
"Joshua Liebow-Feeser" <joshlf@google.com>,
"Jack Wrenn" <jswrenn@google.com>
Subject: [PATCH v2 06/19] rust: kbuild: support per-target environment variables
Date: Mon, 8 Jun 2026 16:14:25 +0200 [thread overview]
Message-ID: <20260608141439.182634-7-ojeda@kernel.org> (raw)
In-Reply-To: <20260608141439.182634-1-ojeda@kernel.org>
Certain vendored crates, like the upcoming `zerocopy`, use extra
environment variables (e.g. via `env!`).
Thus add support to easily specify those.
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
---
rust/Makefile | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/rust/Makefile b/rust/Makefile
index df90fabefb70..9b5a3f9dd934 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -144,6 +144,7 @@ doctests_modifiers_workaround := $(rustdoc_modifiers_workaround)$(if $(call rust
quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $<
cmd_rustdoc = \
+ $(rustc_target_envs) \
OBJTREE=$(abspath $(objtree)) \
$(RUSTDOC) $(filter-out $(skip_flags) --remap-path-scope=%,$(if $(rustdoc_host),$(rust_common_flags),$(rust_flags))) \
$(rustc_target_flags) -L$(objtree)/$(obj) \
@@ -250,6 +251,7 @@ rustdoc-clean: FORCE
quiet_cmd_rustc_test_library = $(RUSTC_OR_CLIPPY_QUIET) TL $<
cmd_rustc_test_library = \
+ $(rustc_target_envs) \
OBJTREE=$(abspath $(objtree)) \
$(RUSTC_OR_CLIPPY) $(filter-out $(skip_flags),$(rust_common_flags) $(rustc_target_flags)) \
@$(objtree)/include/generated/rustc_cfg \
@@ -314,6 +316,7 @@ rusttestlib-uapi: $(src)/uapi/lib.rs rusttestlib-ffi rusttestlib-pin_init FORCE
quiet_cmd_rustdoc_test = RUSTDOC T $<
cmd_rustdoc_test = \
+ $(rustc_target_envs) \
RUST_MODFILE=test.rs \
OBJTREE=$(abspath $(objtree)) \
$(RUSTDOC) --test $(rust_common_flags) \
@@ -328,6 +331,7 @@ quiet_cmd_rustdoc_test_kernel = RUSTDOC TK $<
cmd_rustdoc_test_kernel = \
rm -rf $(objtree)/$(obj)/test/doctests/kernel; \
mkdir -p $(objtree)/$(obj)/test/doctests/kernel; \
+ $(rustc_target_envs) \
OBJTREE=$(abspath $(objtree)) \
$(RUSTDOC) --test $(filter-out --remap-path-scope=%,$(rust_flags)) \
-L$(objtree)/$(obj) --extern ffi --extern pin_init \
@@ -350,6 +354,7 @@ quiet_cmd_rustdoc_test_kernel = RUSTDOC TK $<
# so for the moment we skip `-Cpanic=abort`.
quiet_cmd_rustc_test = $(RUSTC_OR_CLIPPY_QUIET) T $<
cmd_rustc_test = \
+ $(rustc_target_envs) \
OBJTREE=$(abspath $(objtree)) \
$(RUSTC_OR_CLIPPY) --test $(rust_common_flags) \
@$(objtree)/include/generated/rustc_cfg \
@@ -519,6 +524,7 @@ $(obj)/exports_kernel_generated.h: $(obj)/kernel.o FORCE
quiet_cmd_rustc_procmacrolibrary = $(if $(skip_clippy),RUSTC,$(RUSTC_OR_CLIPPY_QUIET)) PL $@
cmd_rustc_procmacrolibrary = \
+ $(rustc_target_envs) \
$(if $(skip_clippy),$(RUSTC),$(RUSTC_OR_CLIPPY)) \
$(filter-out $(skip_flags),$(rust_common_flags) $(rustc_target_flags)) \
--emit=dep-info=$(depfile) --emit=link=$@ --crate-type rlib -O \
@@ -543,6 +549,7 @@ $(obj)/libsyn.rlib: $(src)/syn/lib.rs $(obj)/libquote.rlib FORCE
quiet_cmd_rustc_procmacro = $(RUSTC_OR_CLIPPY_QUIET) P $@
cmd_rustc_procmacro = \
+ $(rustc_target_envs) \
$(RUSTC_OR_CLIPPY) $(rust_common_flags) $(rustc_target_flags) \
-Clinker-flavor=gcc -Clinker=$(HOSTCC) \
-Clink-args='$(call escsq,$(KBUILD_PROCMACROLDFLAGS))' \
@@ -567,6 +574,7 @@ $(obj)/$(libpin_init_internal_name): $(src)/pin-init/internal/src/lib.rs \
# 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 = \
+ $(rustc_target_envs) \
OBJTREE=$(abspath $(objtree)) \
$(if $(skip_clippy),$(RUSTC),$(RUSTC_OR_CLIPPY)) \
$(filter-out $(skip_flags),$(rust_flags)) $(rustc_target_flags) \
--
2.54.0
next prev parent reply other threads:[~2026-06-08 14:15 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-08 14:14 [PATCH v2 00/19] `zerocopy` support Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 01/19] scripts: generate_rust_analyzer: support passing env vars Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 02/19] rust: kbuild: show the right `quiet_cmd_rustc_procmacrolibrary` Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 03/19] rust: kbuild: remove unused variable Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 04/19] rust: kbuild: define `procmacro-name` function Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 05/19] rust: kbuild: define `procmacro-extension` variable Miguel Ojeda
2026-06-08 14:14 ` Miguel Ojeda [this message]
2026-06-08 14:14 ` [PATCH v2 07/19] rust: kbuild: support `skip_clippy` for `rustc_procmacro` Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 08/19] rust: zerocopy: import crate Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 09/19] rust: zerocopy: add SPDX License Identifiers Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 10/19] rust: zerocopy: remove float `Display` support Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 11/19] rust: zerocopy: add `README.md` Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 12/19] rust: zerocopy: enable support in kbuild Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 13/19] rust: zerocopy-derive: import crate Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 14/19] rust: zerocopy-derive: add SPDX License Identifiers Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 15/19] rust: zerocopy-derive: avoid generating non-ASCII identifiers Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 16/19] rust: zerocopy-derive: add `README.md` Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 17/19] rust: zerocopy-derive: enable support in kbuild Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 18/19] rust: prelude: add `zerocopy{,_derive}::FromBytes` Miguel Ojeda
2026-06-08 14:14 ` [PATCH v2 19/19] gpu: nova-core: firmware: parse `FalconUCodeDescV2` via `zerocopy` Miguel Ojeda
2026-06-08 14:32 ` Gary Guo
2026-06-08 14:36 ` Danilo Krummrich
2026-06-08 15:30 ` Miguel Ojeda
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