From: Deborah Brouwer <deborah.brouwer@collabora.com>
To: "Danilo Krummrich" <dakr@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Daniel Almeida" <daniel.almeida@collabora.com>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Miguel Ojeda" <ojeda@kernel.org>,
"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>,
"Trevor Gross" <tmgross@umich.edu>,
"Tamir Duberstein" <tamird@kernel.org>,
"Alexandre Courbot" <acourbot@nvidia.com>,
"Onur Özkan" <work@onurozkan.dev>
Cc: dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org,
linux-kernel@vger.kernel.org,
Deborah Brouwer <deborah.brouwer@collabora.com>
Subject: [PATCH v4 1/2] rust/Makefile: add zerocopy and zerocopy_derive
Date: Mon, 19 Oct 2026 16:25:59 -0700 [thread overview]
Message-ID: <20261019-b4-gpu_info_intobytes-v4-1-0bc04df46549@collabora.com> (raw)
In-Reply-To: <20261019-b4-gpu_info_intobytes-v4-0-0bc04df46549@collabora.com>
Make the zerocopy and zerocopy_derive crates available for use when
building the bindings and uapi crates and their tests.
This will be used by the Tyr driver that needs the traits IntoBytes and
Immutable to safely copy the struct byte-for-byte to userspace.
Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
---
rust/Makefile | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/rust/Makefile b/rust/Makefile
index da1a7409d984..f59815fac293 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -361,12 +361,18 @@ rusttestlib-kernel: $(src)/kernel/lib.rs rusttestlib-bindings rusttestlib-uapi \
$(obj)/bindings.o rusttestlib-zerocopy rusttestlib-zerocopy_derive FORCE
+$(call if_changed,rustc_test_library)
-rusttestlib-bindings: private rustc_target_flags = --extern ffi --extern pin_init
-rusttestlib-bindings: $(src)/bindings/lib.rs rusttestlib-ffi rusttestlib-pin_init FORCE
+rusttestlib-bindings: private rustc_target_flags = --extern ffi --extern pin_init \
+ --extern zerocopy=$(objtree)/$(obj)/test/libzerocopy.rlib \
+ --extern zerocopy_derive=$(objtree)/$(obj)/test/$(libzerocopy_derive_name)
+rusttestlib-bindings: $(src)/bindings/lib.rs rusttestlib-ffi rusttestlib-pin_init \
+ rusttestlib-zerocopy rusttestlib-zerocopy_derive FORCE
+$(call if_changed,rustc_test_library)
-rusttestlib-uapi: private rustc_target_flags = --extern ffi --extern pin_init
-rusttestlib-uapi: $(src)/uapi/lib.rs rusttestlib-ffi rusttestlib-pin_init FORCE
+rusttestlib-uapi: private rustc_target_flags = --extern ffi --extern pin_init \
+ --extern zerocopy=$(objtree)/$(obj)/test/libzerocopy.rlib \
+ --extern zerocopy_derive=$(objtree)/$(obj)/test/$(libzerocopy_derive_name)
+rusttestlib-uapi: $(src)/uapi/lib.rs rusttestlib-ffi rusttestlib-pin_init \
+ rusttestlib-zerocopy rusttestlib-zerocopy_derive FORCE
+$(call if_changed,rustc_test_library)
quiet_cmd_rustdoc_test = RUSTDOC T $<
@@ -774,19 +780,25 @@ $(obj)/ffi.o: private skip_gendwarfksyms = 1
$(obj)/ffi.o: $(src)/ffi.rs $(obj)/compiler_builtins.o FORCE
+$(call if_changed_rule,rustc_library)
-$(obj)/bindings.o: private rustc_target_flags = --extern ffi --extern pin_init
+$(obj)/bindings.o: private rustc_target_flags = --extern ffi --extern pin_init \
+ --extern zerocopy --extern zerocopy_derive
$(obj)/bindings.o: $(src)/bindings/lib.rs \
$(obj)/ffi.o \
$(obj)/pin_init.o \
+ $(obj)/zerocopy.o \
+ $(obj)/$(libzerocopy_derive_name) \
$(obj)/bindings/bindings_generated.rs \
$(obj)/bindings/bindings_helpers_generated.rs FORCE
+$(call if_changed_rule,rustc_library)
-$(obj)/uapi.o: private rustc_target_flags = --extern ffi --extern pin_init
+$(obj)/uapi.o: private rustc_target_flags = --extern ffi --extern pin_init \
+ --extern zerocopy --extern zerocopy_derive
$(obj)/uapi.o: private skip_gendwarfksyms = 1
$(obj)/uapi.o: $(src)/uapi/lib.rs \
$(obj)/ffi.o \
$(obj)/pin_init.o \
+ $(obj)/zerocopy.o \
+ $(obj)/$(libzerocopy_derive_name) \
$(obj)/uapi/uapi_generated.rs FORCE
+$(call if_changed_rule,rustc_library)
--
2.56.0
next prev parent reply other threads:[~2026-10-19 23:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-19 23:25 [PATCH v4 0/2] drm/tyr: safely write GpuInfo to userspace Deborah Brouwer
2026-10-19 23:25 ` Deborah Brouwer [this message]
2026-10-20 8:01 ` [PATCH v4 1/2] rust/Makefile: add zerocopy and zerocopy_derive Alice Ryhl
2026-10-19 23:26 ` [PATCH v4 2/2] drm/tyr: safely write GpuInfo to userspace Deborah Brouwer
2026-10-20 8:01 ` Alice Ryhl
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