diff mbox series

[14/22] rust: add pin-init crate build infrastructure

Message ID 20250304225245.2033120-15-benno.lossin@proton.me (mailing list archive)
State New
Headers show
Series None | expand

Commit Message

Benno Lossin March 4, 2025, 10:55 p.m. UTC
From: Miguel Ojeda <ojeda@kernel.org>

Add infrastructure for moving the initialization API to its own crate.
Covers all make targets such as `rust-analyzer` and `rustdoc`. The tests
of pin-init are not added to `rusttest`, as they are already tested in
the user-space repository [1].

Link: https://github.com/Rust-for-Linux/pin-init [1]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Co-developed-by: Benno Lossin <benno.lossin@proton.me>
Signed-off-by: Benno Lossin <benno.lossin@proton.me>
---
 rust/Makefile                      | 75 +++++++++++++++++++++++-------
 rust/pin-init/internal/src/_lib.rs |  3 ++
 rust/pin-init/internal/src/lib.rs  |  4 ++
 rust/pin-init/src/_lib.rs          |  5 ++
 scripts/Makefile.build             |  2 +-
 scripts/generate_rust_analyzer.py  | 17 ++++++-
 6 files changed, 86 insertions(+), 20 deletions(-)
 create mode 100644 rust/pin-init/internal/src/_lib.rs
 create mode 100644 rust/pin-init/src/_lib.rs

Comments

Andreas Hindborg March 5, 2025, 11:59 a.m. UTC | #1
"Benno Lossin" <benno.lossin@proton.me> writes:

> From: Miguel Ojeda <ojeda@kernel.org>
>
> Add infrastructure for moving the initialization API to its own crate.
> Covers all make targets such as `rust-analyzer` and `rustdoc`. The tests
> of pin-init are not added to `rusttest`, as they are already tested in
> the user-space repository [1].

If it's not too much hassle, why not add them in the kernel as well? I
would rather not have to go fetch the user space repo from github, in
the event that I ever need to patch pin-init.


>
> Link: https://github.com/Rust-for-Linux/pin-init [1]
> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
> Co-developed-by: Benno Lossin <benno.lossin@proton.me>
> Signed-off-by: Benno Lossin <benno.lossin@proton.me>
> ---
>  rust/Makefile                      | 75 +++++++++++++++++++++++-------
>  rust/pin-init/internal/src/_lib.rs |  3 ++
>  rust/pin-init/internal/src/lib.rs  |  4 ++
>  rust/pin-init/src/_lib.rs          |  5 ++
>  scripts/Makefile.build             |  2 +-
>  scripts/generate_rust_analyzer.py  | 17 ++++++-
>  6 files changed, 86 insertions(+), 20 deletions(-)
>  create mode 100644 rust/pin-init/internal/src/_lib.rs
>  create mode 100644 rust/pin-init/src/_lib.rs
>
> diff --git a/rust/Makefile b/rust/Makefile
> index ea3849eb78f6..90310f0620eb 100644
> --- a/rust/Makefile
> +++ b/rust/Makefile

[...]

> @@ -110,11 +113,24 @@ rustdoc-compiler_builtins: $(src)/compiler_builtins.rs rustdoc-core FORCE
>  rustdoc-ffi: $(src)/ffi.rs rustdoc-core FORCE
>  	+$(call if_changed,rustdoc)
>
> -rustdoc-kernel: private rustc_target_flags = --extern ffi \
> +rustdoc-pin_init_internal: private rustdoc_host = yes
> +rustdoc-pin_init_internal: private rustc_target_flags = --cfg kernel \
> +    --extern proc_macro --crate-type proc-macro
> +rustdoc-pin_init_internal: $(src)/pin-init/internal/src/_lib.rs FORCE
> +	+$(call if_changed,rustdoc)
> +
> +rustdoc-pin_init: private rustdoc_host = yes
> +rustdoc-pin_init: private rustc_target_flags = --extern pin_init_internal \
> +    --extern macros --extern alloc --cfg kernel --cfg feature=\"alloc\"
> +rustdoc-pin_init: $(src)/pin-init/src/_lib.rs rustdoc-pin_init_internal \
> +    rustdoc-macros FORCE
> +	+$(call if_changed,rustdoc)

Is it possible to do some code sharing here, such that when we add a
crate, it's just a matter of putting the path/name on a list somewhere?


Best regards,
Andreas Hindborg
Benno Lossin March 5, 2025, 12:10 p.m. UTC | #2
On Wed Mar 5, 2025 at 12:59 PM CET, Andreas Hindborg wrote:
> "Benno Lossin" <benno.lossin@proton.me> writes:
>
>> From: Miguel Ojeda <ojeda@kernel.org>
>>
>> Add infrastructure for moving the initialization API to its own crate.
>> Covers all make targets such as `rust-analyzer` and `rustdoc`. The tests
>> of pin-init are not added to `rusttest`, as they are already tested in
>> the user-space repository [1].
>
> If it's not too much hassle, why not add them in the kernel as well? I
> would rather not have to go fetch the user space repo from github, in
> the event that I ever need to patch pin-init.

I tried to add them, but encountered a lot of problems. Maybe the new
build system can help with that. But if you insist, I can try to get
them to work again in a different series now.

The tests run every day in the GitHub CI and any changes that go through
the pin-init-next tree will also be tested there before I submit any
PRs.

>> Link: https://github.com/Rust-for-Linux/pin-init [1]
>> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
>> Co-developed-by: Benno Lossin <benno.lossin@proton.me>
>> Signed-off-by: Benno Lossin <benno.lossin@proton.me>
>> ---
>>  rust/Makefile                      | 75 +++++++++++++++++++++++-------
>>  rust/pin-init/internal/src/_lib.rs |  3 ++
>>  rust/pin-init/internal/src/lib.rs  |  4 ++
>>  rust/pin-init/src/_lib.rs          |  5 ++
>>  scripts/Makefile.build             |  2 +-
>>  scripts/generate_rust_analyzer.py  | 17 ++++++-
>>  6 files changed, 86 insertions(+), 20 deletions(-)
>>  create mode 100644 rust/pin-init/internal/src/_lib.rs
>>  create mode 100644 rust/pin-init/src/_lib.rs
>>
>> diff --git a/rust/Makefile b/rust/Makefile
>> index ea3849eb78f6..90310f0620eb 100644
>> --- a/rust/Makefile
>> +++ b/rust/Makefile
>
> [...]
>
>> @@ -110,11 +113,24 @@ rustdoc-compiler_builtins: $(src)/compiler_builtins.rs rustdoc-core FORCE
>>  rustdoc-ffi: $(src)/ffi.rs rustdoc-core FORCE
>>  	+$(call if_changed,rustdoc)
>>
>> -rustdoc-kernel: private rustc_target_flags = --extern ffi \
>> +rustdoc-pin_init_internal: private rustdoc_host = yes
>> +rustdoc-pin_init_internal: private rustc_target_flags = --cfg kernel \
>> +    --extern proc_macro --crate-type proc-macro
>> +rustdoc-pin_init_internal: $(src)/pin-init/internal/src/_lib.rs FORCE
>> +	+$(call if_changed,rustdoc)
>> +
>> +rustdoc-pin_init: private rustdoc_host = yes
>> +rustdoc-pin_init: private rustc_target_flags = --extern pin_init_internal \
>> +    --extern macros --extern alloc --cfg kernel --cfg feature=\"alloc\"
>> +rustdoc-pin_init: $(src)/pin-init/src/_lib.rs rustdoc-pin_init_internal \
>> +    rustdoc-macros FORCE
>> +	+$(call if_changed,rustdoc)
>
> Is it possible to do some code sharing here, such that when we add a
> crate, it's just a matter of putting the path/name on a list somewhere?

Miguel informed me that this Makefile won't exist in the new build
system, so I'd rather not do that.

---
Cheers,
Benno
Andreas Hindborg March 5, 2025, 12:31 p.m. UTC | #3
"Benno Lossin" <benno.lossin@proton.me> writes:

> On Wed Mar 5, 2025 at 12:59 PM CET, Andreas Hindborg wrote:
>> "Benno Lossin" <benno.lossin@proton.me> writes:
>>
>>> From: Miguel Ojeda <ojeda@kernel.org>
>>>
>>> Add infrastructure for moving the initialization API to its own crate.
>>> Covers all make targets such as `rust-analyzer` and `rustdoc`. The tests
>>> of pin-init are not added to `rusttest`, as they are already tested in
>>> the user-space repository [1].
>>
>> If it's not too much hassle, why not add them in the kernel as well? I
>> would rather not have to go fetch the user space repo from github, in
>> the event that I ever need to patch pin-init.
>
> I tried to add them, but encountered a lot of problems. Maybe the new
> build system can help with that. But if you insist, I can try to get
> them to work again in a different series now.
>
> The tests run every day in the GitHub CI and any changes that go through
> the pin-init-next tree will also be tested there before I submit any
> PRs.

I _really_ think that the ability to run the tests should be present in
the kernel repository. But I also do not want to block this series on it,
if it is something that will be easier to achieve with the build system
overhaul that is in the pipeline.

>
>>> Link: https://github.com/Rust-for-Linux/pin-init [1]
>>> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
>>> Co-developed-by: Benno Lossin <benno.lossin@proton.me>
>>> Signed-off-by: Benno Lossin <benno.lossin@proton.me>
>>> ---
>>>  rust/Makefile                      | 75 +++++++++++++++++++++++-------
>>>  rust/pin-init/internal/src/_lib.rs |  3 ++
>>>  rust/pin-init/internal/src/lib.rs  |  4 ++
>>>  rust/pin-init/src/_lib.rs          |  5 ++
>>>  scripts/Makefile.build             |  2 +-
>>>  scripts/generate_rust_analyzer.py  | 17 ++++++-
>>>  6 files changed, 86 insertions(+), 20 deletions(-)
>>>  create mode 100644 rust/pin-init/internal/src/_lib.rs
>>>  create mode 100644 rust/pin-init/src/_lib.rs
>>>
>>> diff --git a/rust/Makefile b/rust/Makefile
>>> index ea3849eb78f6..90310f0620eb 100644
>>> --- a/rust/Makefile
>>> +++ b/rust/Makefile
>>
>> [...]
>>
>>> @@ -110,11 +113,24 @@ rustdoc-compiler_builtins: $(src)/compiler_builtins.rs rustdoc-core FORCE
>>>  rustdoc-ffi: $(src)/ffi.rs rustdoc-core FORCE
>>>  	+$(call if_changed,rustdoc)
>>>
>>> -rustdoc-kernel: private rustc_target_flags = --extern ffi \
>>> +rustdoc-pin_init_internal: private rustdoc_host = yes
>>> +rustdoc-pin_init_internal: private rustc_target_flags = --cfg kernel \
>>> +    --extern proc_macro --crate-type proc-macro
>>> +rustdoc-pin_init_internal: $(src)/pin-init/internal/src/_lib.rs FORCE
>>> +	+$(call if_changed,rustdoc)
>>> +
>>> +rustdoc-pin_init: private rustdoc_host = yes
>>> +rustdoc-pin_init: private rustc_target_flags = --extern pin_init_internal \
>>> +    --extern macros --extern alloc --cfg kernel --cfg feature=\"alloc\"
>>> +rustdoc-pin_init: $(src)/pin-init/src/_lib.rs rustdoc-pin_init_internal \
>>> +    rustdoc-macros FORCE
>>> +	+$(call if_changed,rustdoc)
>>
>> Is it possible to do some code sharing here, such that when we add a
>> crate, it's just a matter of putting the path/name on a list somewhere?
>
> Miguel informed me that this Makefile won't exist in the new build
> system, so I'd rather not do that.

OK, cool.


Best regards,
Andreas Hindborg
Miguel Ojeda March 5, 2025, 12:47 p.m. UTC | #4
On Wed, Mar 5, 2025 at 12:59 PM Andreas Hindborg <a.hindborg@kernel.org> wrote:
>
> If it's not too much hassle, why not add them in the kernel as well? I
> would rather not have to go fetch the user space repo from github, in
> the event that I ever need to patch pin-init.

If you need to patch it, then you should generally do so upstream --
this is supposed to be a vendored/sync'd library.

Cheers,
Miguel
Miguel Ojeda March 5, 2025, 12:50 p.m. UTC | #5
On Wed, Mar 5, 2025 at 1:34 PM Andreas Hindborg <a.hindborg@kernel.org> wrote:
>
> I _really_ think that the ability to run the tests should be present in
> the kernel repository. But I also do not want to block this series on it,
> if it is something that will be easier to achieve with the build system
> overhaul that is in the pipeline.

No, that is not the plan. Even with the new build system, this is
supposed to be developed upstream as far as I understand, so you will
need to run them there anyway.

Unless there is a reason we could catch more bugs here, that is.

Cheers,
Miguel
Benno Lossin March 5, 2025, 1 p.m. UTC | #6
On Wed Mar 5, 2025 at 1:50 PM CET, Miguel Ojeda wrote:
> On Wed, Mar 5, 2025 at 1:34 PM Andreas Hindborg <a.hindborg@kernel.org> wrote:
>>
>> I _really_ think that the ability to run the tests should be present in
>> the kernel repository. But I also do not want to block this series on it,
>> if it is something that will be easier to achieve with the build system
>> overhaul that is in the pipeline.
>
> No, that is not the plan. Even with the new build system, this is
> supposed to be developed upstream as far as I understand, so you will
> need to run them there anyway.

Yes, the plan is that development will happen on GitHub. I will of
course continue to take patches via the list, but I would prefer if
people make changes via GitHub PRs, since those run the CI (which also
includes a lot more tests that I haven't vendored here).

---
Cheers,
Benno
Andreas Hindborg March 5, 2025, 2:19 p.m. UTC | #7
"Miguel Ojeda" <miguel.ojeda.sandonis@gmail.com> writes:

> On Wed, Mar 5, 2025 at 1:34 PM Andreas Hindborg <a.hindborg@kernel.org> wrote:
>>
>> I _really_ think that the ability to run the tests should be present in
>> the kernel repository. But I also do not want to block this series on it,
>> if it is something that will be easier to achieve with the build system
>> overhaul that is in the pipeline.
>
> No, that is not the plan. Even with the new build system, this is
> supposed to be developed upstream as far as I understand, so you will
> need to run them there anyway.
>
> Unless there is a reason we could catch more bugs here, that is.

I guess it would be no different than `syn`. But I think it is a shame
that we move something that people could contribute to via the kernel
development flow - out of the kernel development flow.

Ultimately I guess this is for the maintainer to decide, and I don't
have to like the decision.


Best regards,
Andreas Hindborg
Benno Lossin March 5, 2025, 2:34 p.m. UTC | #8
On Wed Mar 5, 2025 at 3:19 PM CET, Andreas Hindborg wrote:
> "Miguel Ojeda" <miguel.ojeda.sandonis@gmail.com> writes:
>
>> On Wed, Mar 5, 2025 at 1:34 PM Andreas Hindborg <a.hindborg@kernel.org> wrote:
>>>
>>> I _really_ think that the ability to run the tests should be present in
>>> the kernel repository. But I also do not want to block this series on it,
>>> if it is something that will be easier to achieve with the build system
>>> overhaul that is in the pipeline.
>>
>> No, that is not the plan. Even with the new build system, this is
>> supposed to be developed upstream as far as I understand, so you will
>> need to run them there anyway.
>>
>> Unless there is a reason we could catch more bugs here, that is.
>
> I guess it would be no different than `syn`. But I think it is a shame
> that we move something that people could contribute to via the kernel
> development flow - out of the kernel development flow.

You *can* send patches via the list, I will pick them up and run them
through the GitHub CI.

Patches that arrive via GitHub will also go through the list and people
can add their tags there.

Also I don't think that pin-init will receive a lot of contributions in
the first place. I do have a lot of changes planned for when we get
`syn`, but other than that, I don't think it will change a lot in the
future.

---
Cheers,
Benno
diff mbox series

Patch

diff --git a/rust/Makefile b/rust/Makefile
index ea3849eb78f6..90310f0620eb 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -12,7 +12,7 @@  obj-$(CONFIG_RUST) += helpers/helpers.o
 CFLAGS_REMOVE_helpers/helpers.o = -Wmissing-prototypes -Wmissing-declarations
 
 always-$(CONFIG_RUST) += bindings/bindings_generated.rs bindings/bindings_helpers_generated.rs
-obj-$(CONFIG_RUST) += bindings.o kernel.o
+obj-$(CONFIG_RUST) += bindings.o pin_init.o kernel.o
 always-$(CONFIG_RUST) += exports_helpers_generated.h \
     exports_bindings_generated.h exports_kernel_generated.h
 
@@ -41,7 +41,10 @@  ifdef CONFIG_RUST
 libmacros_name := $(shell MAKEFLAGS= $(RUSTC) --print file-names --crate-name macros --crate-type proc-macro - </dev/null)
 libmacros_extension := $(patsubst libmacros.%,%,$(libmacros_name))
 
-always-$(CONFIG_RUST) += $(libmacros_name)
+libpin_init_internal_name := $(shell MAKEFLAGS= $(RUSTC) --print file-names --crate-name pin_init_internal --crate-type proc-macro - </dev/null)
+libpin_init_internal_extension := $(patsubst libpin_init_internal.%,%,$(libpin_init_internal_name))
+
+always-$(CONFIG_RUST) += $(libmacros_name) $(libpin_init_internal_name)
 
 # `$(rust_flags)` is passed in case the user added `--sysroot`.
 rustc_sysroot := $(shell MAKEFLAGS= $(RUSTC) $(rust_flags) --print sysroot)
@@ -80,7 +83,7 @@  quiet_cmd_rustdoc = RUSTDOC $(if $(rustdoc_host),H, ) $<
 # command-like flags to solve the issue. Meanwhile, we use the non-custom case
 # and then retouch the generated files.
 rustdoc: rustdoc-core rustdoc-macros rustdoc-compiler_builtins \
-    rustdoc-kernel
+    rustdoc-kernel rustdoc-pin_init
 	$(Q)cp $(srctree)/Documentation/images/logo.svg $(rustdoc_output)/static.files/
 	$(Q)cp $(srctree)/Documentation/images/COPYING-logo $(rustdoc_output)/static.files/
 	$(Q)find $(rustdoc_output) -name '*.html' -type f -print0 | xargs -0 sed -Ei \
@@ -110,11 +113,24 @@  rustdoc-compiler_builtins: $(src)/compiler_builtins.rs rustdoc-core FORCE
 rustdoc-ffi: $(src)/ffi.rs rustdoc-core FORCE
 	+$(call if_changed,rustdoc)
 
-rustdoc-kernel: private rustc_target_flags = --extern ffi \
+rustdoc-pin_init_internal: private rustdoc_host = yes
+rustdoc-pin_init_internal: private rustc_target_flags = --cfg kernel \
+    --extern proc_macro --crate-type proc-macro
+rustdoc-pin_init_internal: $(src)/pin-init/internal/src/_lib.rs FORCE
+	+$(call if_changed,rustdoc)
+
+rustdoc-pin_init: private rustdoc_host = yes
+rustdoc-pin_init: private rustc_target_flags = --extern pin_init_internal \
+    --extern macros --extern alloc --cfg kernel --cfg feature=\"alloc\"
+rustdoc-pin_init: $(src)/pin-init/src/_lib.rs rustdoc-pin_init_internal \
+    rustdoc-macros FORCE
+	+$(call if_changed,rustdoc)
+
+rustdoc-kernel: private rustc_target_flags = --extern ffi --extern pin_init \
     --extern build_error --extern macros \
     --extern bindings --extern uapi
 rustdoc-kernel: $(src)/kernel/lib.rs rustdoc-core rustdoc-ffi rustdoc-macros \
-    rustdoc-compiler_builtins $(obj)/$(libmacros_name) \
+    rustdoc-pin_init rustdoc-compiler_builtins $(obj)/$(libmacros_name) \
     $(obj)/bindings.o FORCE
 	+$(call if_changed,rustdoc)
 
@@ -139,12 +155,24 @@  rusttestlib-macros: private rustc_test_library_proc = yes
 rusttestlib-macros: $(src)/macros/lib.rs FORCE
 	+$(call if_changed,rustc_test_library)
 
+rusttestlib-pin_init_internal: private rustc_target_flags = --cfg kernel \
+    --extern proc_macro
+rusttestlib-pin_init_internal: private rustc_test_library_proc = yes
+rusttestlib-pin_init_internal: $(src)/pin-init/internal/src/_lib.rs FORCE
+	+$(call if_changed,rustc_test_library)
+
+rusttestlib-pin_init: private rustc_target_flags = --extern pin_init_internal \
+    --extern macros --cfg kernel
+rusttestlib-pin_init: $(src)/pin-init/src/_lib.rs rusttestlib-macros \
+    rusttestlib-pin_init_internal $(obj)/$(libpin_init_internal_name) FORCE
+	+$(call if_changed,rustc_test_library)
+
 rusttestlib-kernel: private rustc_target_flags = --extern ffi \
-    --extern build_error --extern macros \
+    --extern build_error --extern macros --extern pin_init \
     --extern bindings --extern uapi
-rusttestlib-kernel: $(src)/kernel/lib.rs \
-    rusttestlib-bindings rusttestlib-uapi rusttestlib-build_error \
-    $(obj)/$(libmacros_name) $(obj)/bindings.o FORCE
+rusttestlib-kernel: $(src)/kernel/lib.rs rusttestlib-bindings rusttestlib-uapi \
+    rusttestlib-build_error rusttestlib-pin_init $(obj)/$(libmacros_name) \
+    $(obj)/bindings.o FORCE
 	+$(call if_changed,rustc_test_library)
 
 rusttestlib-bindings: private rustc_target_flags = --extern ffi
@@ -172,8 +200,8 @@  quiet_cmd_rustdoc_test_kernel = RUSTDOC TK $<
 	mkdir -p $(objtree)/$(obj)/test/doctests/kernel; \
 	OBJTREE=$(abspath $(objtree)) \
 	$(RUSTDOC) --test $(rust_flags) \
-		-L$(objtree)/$(obj) --extern ffi --extern kernel \
-		--extern build_error --extern macros \
+		-L$(objtree)/$(obj) --extern ffi --extern pin_init \
+		--extern kernel --extern build_error --extern macros \
 		--extern bindings --extern uapi \
 		--no-run --crate-name kernel -Zunstable-options \
 		--sysroot=/dev/null \
@@ -203,18 +231,18 @@  quiet_cmd_rustc_test = $(RUSTC_OR_CLIPPY_QUIET) T  $<
 rusttest: rusttest-macros rusttest-kernel
 
 rusttest-macros: private rustc_target_flags = --extern proc_macro \
-	--extern macros --extern kernel
+	--extern macros --extern kernel --extern pin_init
 rusttest-macros: private rustdoc_test_target_flags = --crate-type proc-macro
 rusttest-macros: $(src)/macros/lib.rs \
-    rusttestlib-macros rusttestlib-kernel FORCE
+    rusttestlib-macros rusttestlib-kernel rusttestlib-pin_init FORCE
 	+$(call if_changed,rustc_test)
 	+$(call if_changed,rustdoc_test)
 
-rusttest-kernel: private rustc_target_flags = --extern ffi \
+rusttest-kernel: private rustc_target_flags = --extern ffi --extern pin_init \
     --extern build_error --extern macros --extern bindings --extern uapi
 rusttest-kernel: $(src)/kernel/lib.rs rusttestlib-ffi rusttestlib-kernel \
     rusttestlib-build_error rusttestlib-macros rusttestlib-bindings \
-    rusttestlib-uapi FORCE
+    rusttestlib-uapi rusttestlib-pin_init FORCE
 	+$(call if_changed,rustc_test)
 
 ifdef CONFIG_CC_IS_CLANG
@@ -361,7 +389,7 @@  $(obj)/exports_kernel_generated.h: $(obj)/kernel.o FORCE
 
 quiet_cmd_rustc_procmacro = $(RUSTC_OR_CLIPPY_QUIET) P $@
       cmd_rustc_procmacro = \
-	$(RUSTC_OR_CLIPPY) $(rust_common_flags) \
+	$(RUSTC_OR_CLIPPY) $(rust_common_flags) $(rustc_target_flags) \
 		-Clinker-flavor=gcc -Clinker=$(HOSTCC) \
 		-Clink-args='$(call escsq,$(KBUILD_PROCMACROLDFLAGS))' \
 		--emit=dep-info=$(depfile) --emit=link=$@ --extern proc_macro \
@@ -372,6 +400,10 @@  quiet_cmd_rustc_procmacro = $(RUSTC_OR_CLIPPY_QUIET) P $@
 $(obj)/$(libmacros_name): $(src)/macros/lib.rs FORCE
 	+$(call if_changed_dep,rustc_procmacro)
 
+$(obj)/$(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)
+
 quiet_cmd_rustc_library = $(if $(skip_clippy),RUSTC,$(RUSTC_OR_CLIPPY_QUIET)) L $@
       cmd_rustc_library = \
 	OBJTREE=$(abspath $(objtree)) \
@@ -451,6 +483,13 @@  $(obj)/compiler_builtins.o: private rustc_objcopy = -w -W '__*'
 $(obj)/compiler_builtins.o: $(src)/compiler_builtins.rs $(obj)/core.o FORCE
 	+$(call if_changed_rule,rustc_library)
 
+$(obj)/pin_init.o: private skip_gendwarfksyms = 1
+$(obj)/pin_init.o: private rustc_target_flags = --extern pin_init_internal \
+    --extern macros --cfg kernel
+$(obj)/pin_init.o: $(src)/pin-init/src/_lib.rs $(obj)/compiler_builtins.o \
+    $(obj)/$(libpin_init_internal_name) $(obj)/$(libmacros_name) FORCE
+	+$(call if_changed_rule,rustc_library)
+
 $(obj)/build_error.o: private skip_gendwarfksyms = 1
 $(obj)/build_error.o: $(src)/build_error.rs $(obj)/compiler_builtins.o FORCE
 	+$(call if_changed_rule,rustc_library)
@@ -473,9 +512,9 @@  $(obj)/uapi.o: $(src)/uapi/lib.rs \
     $(obj)/uapi/uapi_generated.rs FORCE
 	+$(call if_changed_rule,rustc_library)
 
-$(obj)/kernel.o: private rustc_target_flags = --extern ffi \
+$(obj)/kernel.o: private rustc_target_flags = --extern ffi --extern pin_init \
     --extern build_error --extern macros --extern bindings --extern uapi
-$(obj)/kernel.o: $(src)/kernel/lib.rs $(obj)/build_error.o \
+$(obj)/kernel.o: $(src)/kernel/lib.rs $(obj)/build_error.o $(obj)/pin_init.o \
     $(obj)/$(libmacros_name) $(obj)/bindings.o $(obj)/uapi.o FORCE
 	+$(call if_changed_rule,rustc_library)
 
diff --git a/rust/pin-init/internal/src/_lib.rs b/rust/pin-init/internal/src/_lib.rs
new file mode 100644
index 000000000000..0874cf04e4cb
--- /dev/null
+++ b/rust/pin-init/internal/src/_lib.rs
@@ -0,0 +1,3 @@ 
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
+//! Will be removed in a future commit, only exists to prevent compilation errors.
diff --git a/rust/pin-init/internal/src/lib.rs b/rust/pin-init/internal/src/lib.rs
index bf66cbee2531..3146da5cc47c 100644
--- a/rust/pin-init/internal/src/lib.rs
+++ b/rust/pin-init/internal/src/lib.rs
@@ -1,5 +1,9 @@ 
 // SPDX-License-Identifier: Apache-2.0 OR MIT
 
+// When fixdep scans this, it will find this string `CONFIG_RUSTC_VERSION_TEXT`
+// and thus add a dependency on `include/config/RUSTC_VERSION_TEXT`, which is
+// touched by Kconfig when the version string from the compiler changes.
+
 #[allow(missing_docs)]
 #[proc_macro_attribute]
 pub fn pin_data(inner: TokenStream, item: TokenStream) -> TokenStream {
diff --git a/rust/pin-init/src/_lib.rs b/rust/pin-init/src/_lib.rs
new file mode 100644
index 000000000000..e0918fd8e9e7
--- /dev/null
+++ b/rust/pin-init/src/_lib.rs
@@ -0,0 +1,5 @@ 
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
+//! Will be removed in a future commit, only exists to prevent compilation errors.
+
+#![no_std]
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 993708d11874..08b6380933f5 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -237,7 +237,7 @@  rust_common_cmd = \
 	-Zallow-features=$(rust_allowed_features) \
 	-Zcrate-attr=no_std \
 	-Zcrate-attr='feature($(rust_allowed_features))' \
-	-Zunstable-options --extern kernel \
+	-Zunstable-options --extern pin_init --extern kernel \
 	--crate-type rlib -L $(objtree)/rust/ \
 	--crate-name $(basename $(notdir $@)) \
 	--sysroot=/dev/null \
diff --git a/scripts/generate_rust_analyzer.py b/scripts/generate_rust_analyzer.py
index aa8ea1a4dbe5..a44a4475d11f 100755
--- a/scripts/generate_rust_analyzer.py
+++ b/scripts/generate_rust_analyzer.py
@@ -93,10 +93,25 @@  def generate_crates(srctree, objtree, sysroot_src, external_src, cfgs):
     )
     crates[-1]["env"]["OBJTREE"] = str(objtree.resolve(True))
 
+    append_crate(
+        "pin_init_internal",
+        srctree / "rust" / "pin-init" / "internal" / "src" / "_lib.rs",
+        [],
+        cfg=["kernel"],
+        is_proc_macro=True,
+    )
+
+    append_crate(
+        "pin_init",
+        srctree / "rust" / "pin-init" / "src" / "_lib.rs",
+        ["core", "pin_init_internal", "macros"],
+        cfg=["kernel"],
+    )
+
     append_crate(
         "kernel",
         srctree / "rust" / "kernel" / "lib.rs",
-        ["core", "macros", "build_error", "bindings"],
+        ["core", "macros", "build_error", "bindings", "pin_init"],
         cfg=cfg,
     )
     crates[-1]["source"] = {