droid.com/3110088 [2]
Signed-off-by: Alice Ryhl
---
Alice Ryhl (3):
rust: add static_call support
rust: add static_key_false
rust: add tracepoint support
rust/bindings/bindings_helper.h | 1 +
rust/bindings/lib.rs| 15 +++
rust/helpers.c | 24
Make it possible to have Rust code call into tracepoints defined by C
code. It is still required that the tracepoint is declared in a C
header, and that this header is included in the input to bindgen.
Signed-off-by: Alice Ryhl
---
rust/bindings/bindings_helper.h | 1 +
rust/bindings/lib.rs
patchable at runtime.
Signed-off-by: Alice Ryhl
---
rust/kernel/lib.rs | 1 +
rust/kernel/static_call.rs | 92 ++
2 files changed, 93 insertions(+)
diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs
index fbd91a48ff8b..d534b1178955 100644
Add just enough support for static key so that we can use it from
tracepoints. Tracepoints rely on `static_key_false` even though it is
deprecated, so we add the same functionality to Rust.
Signed-off-by: Alice Ryhl
---
rust/kernel/lib.rs| 1 +
rust/kernel/static_key.rs | 87
On Thu, Jun 6, 2024 at 5:25 PM Mathieu Desnoyers
wrote:
>
> On 2024-06-06 11:05, Alice Ryhl wrote:
> > This implementation implements support for static keys in Rust so that
> > the actual static branch will end up in the Rust object file. However,
> > it would also be p
On Thu, Jun 6, 2024 at 5:29 PM Mathieu Desnoyers
wrote:
>
> On 2024-06-06 11:05, Alice Ryhl wrote:
> > Make it possible to have Rust code call into tracepoints defined by C
> > code. It is still required that the tracepoint is declared in a C
> > header, and that this h
On Thu, Jun 6, 2024 at 5:37 PM Mathieu Desnoyers
wrote:
>
> On 2024-06-06 11:05, Alice Ryhl wrote:
> > Add just enough support for static key so that we can use it from
> > tracepoints. Tracepoints rely on `static_key_false` even though it is
> > deprecated, so we add t
Peter Zijlstra wrote:
> On Thu, Jun 06, 2024 at 09:09:00PM +0200, Miguel Ojeda wrote:
> > On Thu, Jun 6, 2024 at 7:19 PM Peter Zijlstra wrote:
> > >
> > > This is absolutely unreadable gibberish -- how am I supposed to keep
> > > this in sync with the rest of the static_call infrastructure?
> >
remains in C code. See v1 for an implementation where
__DO_TRACE is also implemented in Rust.
Link:
https://lore.kernel.org/rust-for-linux/20231101-rust-binder-v1-0-08ba9197f...@google.com/
[1]
Link: https://r.android.com/3119993 [2]
Signed-off-by: Alice Ryhl
---
Changes in v2:
- Call into C code fo
argument `key` to inline
assembly as an 'i' parameter, so any attempt to add a C helper for this
function will fail to compile because the value of `key` must be known
at compile-time.
Signed-off-by: Alice Ryhl
---
rust/kernel/lib.rs| 1 +
rust/kernel/static_k
Make it possible to have Rust code call into tracepoints defined by C
code. It is still required that the tracepoint is declared in a C
header, and that this header is included in the input to bindgen.
Signed-off-by: Alice Ryhl
---
include/linux/tracepoint.h | 18 +++-
include
remains in C code. See v1 for an implementation where
__DO_TRACE is also implemented in Rust.
Link:
https://lore.kernel.org/rust-for-linux/20231101-rust-binder-v1-0-08ba9197f...@google.com/
[1]
Link: https://r.android.com/3119993 [2]
Signed-off-by: Alice Ryhl
---
Changes in v3:
- Support for Rust stati
argument `key` to inline
assembly as an 'i' parameter, so any attempt to add a C helper for this
function will fail to compile because the value of `key` must be known
at compile-time.
Signed-off-by: Alice Ryhl
---
rust/kernel/lib.rs| 1 +
rust/kernel/static_ke
Make it possible to have Rust code call into tracepoints defined by C
code. It is still required that the tracepoint is declared in a C
header, and that this header is included in the input to bindgen.
Signed-off-by: Alice Ryhl
---
include/linux/tracepoint.h | 18 +++-
include
On Wed, Jun 12, 2024 at 5:03 PM Conor Dooley wrote:
>
> On Mon, Jun 10, 2024 at 02:01:04PM +, Alice Ryhl wrote:
> > Add just enough support for static key so that we can use it from
> > tracepoints. Tracepoints rely on `static_key_false` even though it is
> > deprec
On Fri, Jun 21, 2024 at 12:35 PM Alice Ryhl wrote:
>
> Make it possible to have Rust code call into tracepoints defined by C
> code. It is still required that the tracepoint is declared in a C
> header, and that this header is included in the input to bindgen.
>
> Signed-
On Tue, Jun 25, 2024 at 8:11 PM Boqun Feng wrote:
>
> On Fri, Jun 21, 2024 at 02:52:10PM +0200, Alice Ryhl wrote:
> [...]
> >
> > Hmm, I tried using the support where I have both events and hooks:
> >
> > #define CREATE_TRACE_POINTS
> > #define CREATE_RUST_
On Tue, Jun 25, 2024 at 6:18 PM Boqun Feng wrote:
>
> Hi Alice,
>
> On Fri, Jun 21, 2024 at 10:35:26AM +, Alice Ryhl wrote:
> > Add just enough support for static key so that we can use it from
> > tracepoints. Tracepoints rely on `static_key_false` even though it is
&
remains in C code. See v1 for an implementation where
__DO_TRACE is also implemented in Rust.
Link:
https://lore.kernel.org/rust-for-linux/20231101-rust-binder-v1-0-08ba9197f...@google.com/
[1]
Link: https://r.android.com/3119993 [2]
Signed-off-by: Alice Ryhl
---
Changes in v4:
- Move arch-spe
argument `key` to inline
assembly as an 'i' parameter, so any attempt to add a C helper for this
function will fail to compile because the value of `key` must be known
at compile-time.
Signed-off-by: Alice Ryhl
---
rust/kernel/arch/arm64/jump_label.rs | 34
r
Make it possible to have Rust code call into tracepoints defined by C
code. It is still required that the tracepoint is declared in a C
header, and that this header is included in the input to bindgen.
Signed-off-by: Alice Ryhl
---
include/linux/tracepoint.h | 18 +++-
include
On Wed, Jun 26, 2024 at 8:43 PM Steven Rostedt wrote:
>
> On Wed, 26 Jun 2024 10:48:23 +0200
> Alice Ryhl wrote:
>
> > >
> > > Because your hooks/rust_binder.h and events/rust_binder.h use the same
> > > TRACE_SYSTEM name? Could you try something like:
&
On Wed, Jul 31, 2024 at 7:05 PM Peter Zijlstra wrote:
>
> On Fri, Jun 28, 2024 at 01:23:31PM +, Alice Ryhl wrote:
>
> > rust/kernel/arch/arm64/jump_label.rs | 34
> > rust/kernel/arch/loongarch/jump_label.rs | 35 +
On Thu, Aug 1, 2024 at 12:28 PM Peter Zijlstra wrote:
>
> On Wed, Jul 31, 2024 at 11:34:13PM +0200, Alice Ryhl wrote:
>
> > > Please work harder to not have to duplicate stuff like this.
> >
> > I really didn't want to duplicate it, but it's very hard
ba9197f...@google.com/
[1]
Link: https://r.android.com/3119993 [2]
Signed-off-by: Alice Ryhl
---
Changes in v5:
- Update first patch regarding inline asm duplication.
- Add __rust_do_trace helper to support conditions.
- Rename DEFINE_RUST_DO_TRACE_REAL to __DEFINE_RUST_DO_TRACE.
- Get rid of
d-by: WANG Rui
Link:
https://lore.kernel.org/rust-for-linux/20240801102804.gq33...@noisy.programming.kicks-ass.net/
[1]
Signed-off-by: Alice Ryhl
---
arch/arm64/include/asm/jump_label.h | 1 +
arch/loongarch/include/asm/jump_label.h | 1 +
arch/riscv/include/asm/jump_label.h | 1 +
problem that they sometimes
are emitted without a user.
Reviewed-by: Carlos Llamas
Signed-off-by: Alice Ryhl
---
include/linux/tracepoint.h | 22 +-
include/trace/define_trace.h| 12 ++
rust/bindings/bindings_helper.h | 1 +
rust/kernel/lib.rs | 1
On Fri, Aug 2, 2024 at 11:40 AM Peter Zijlstra wrote:
>
> On Fri, Aug 02, 2024 at 09:31:27AM +, Alice Ryhl wrote:
> > Add just enough support for static key so that we can use it from
> > tracepoints. Tracepoints rely on `static_key_false` even though it is
> > deprec
ba9197f...@google.com/
[1]
Link: https://r.android.com/3119993 [2]
Signed-off-by: Alice Ryhl
---
Changes in v6:
- Add support for !CONFIG_JUMP_LABEL.
- Add tracepoint to rust_print sample.
- Deduplicate inline asm.
- Require unsafe inside `declare_trace!`.
- Fix bug on x86 due to use of in
should get inlined. The
helper can be eliminated once we have the necessary inline asm to make
atomic operations from Rust.
Signed-off-by: Alice Ryhl
---
rust/bindings/bindings_helper.h | 1 +
rust/helpers.c| 9 +
rust/kernel/arch_static_branch_asm.rs | 1
problem that they sometimes
are emitted without a user.
Reviewed-by: Carlos Llamas
Signed-off-by: Alice Ryhl
---
include/linux/tracepoint.h | 22 +-
include/trace/define_trace.h| 12 ++
rust/bindings/bindings_helper.h | 1 +
rust/kernel/lib.rs | 1
This updates the Rust printing sample to invoke a tracepoint. This
ensures that we have a user in-tree from the get-go even though the
patch is being merged before its real user.
Signed-off-by: Alice Ryhl
---
MAINTAINERS| 1 +
include/trace/events/rust_sample.h | 31
define a ARCH_STATIC_BRANCH_ASM that
takes the same arguments in a consistent order so that Rust can use the
same logic for every architecture.
Link: https://lore.kernel.org/r/20240725183325.122827-7-oj...@kernel.org [1]
Signed-off-by: Alice Ryhl
---
arch/arm/include/asm/jump_label.h | 14
argument
`key` to inline assembly as an 'i' parameter. Any attempt to add a C
helper for this function will fail to compile because the value of `key`
must be known at compile-time.
Suggested-by: Peter Zijlstra
Co-developed-by: Miguel Ojeda
Signed-off-by: Miguel Ojeda
Signed-off-by:
On Fri, Aug 9, 2024 at 8:16 PM Gary Guo wrote:
>
> On Thu, 08 Aug 2024 17:23:37 +0000
> Alice Ryhl wrote:
>
> > Add just enough support for static key so that we can use it from
> > tracepoints. Tracepoints rely on `static_key_false` even though it is
> >
On Sat, Aug 10, 2024 at 11:04 PM Peter Zijlstra wrote:
>
> On Thu, Aug 08, 2024 at 05:23:41PM +, Alice Ryhl wrote:
>
> > +/// Wrapper around `asm!` that uses at&t syntax on x86.
> > +// Uses a semicolon to avoid parsing ambiguities, even though this does
On Thu, Aug 8, 2024 at 7:23 PM Alice Ryhl wrote:
>
> To avoid duplication of inline asm between C and Rust, we need to
> import the inline asm from the relevant `jump_label.h` header into Rust.
> To make that easier, this patch updates the header files to expose the
> inlin
ba9197f...@google.com/
[1]
Link: https://r.android.com/3119993 [2]
Signed-off-by: Alice Ryhl
---
Changes in v7:
- Fix spurious file included in first patch.
- Fix issue with riscv asm.
- Fix tags on fourth patch to match fifth patch.
- Add Reviewed-by/Acked-by tags where appropriate.
- Link to v6:
ht
should get inlined. The
helper can be eliminated once we have the necessary inline asm to make
atomic operations from Rust.
Signed-off-by: Alice Ryhl
---
rust/bindings/bindings_helper.h | 1 +
rust/helpers.c | 9 +
rust/kernel/jump_label.rs | 29
problem that they sometimes
are emitted without a user.
Reviewed-by: Carlos Llamas
Reviewed-by: Gary Guo
Signed-off-by: Alice Ryhl
---
include/linux/tracepoint.h | 22 +-
include/trace/define_trace.h| 12 ++
rust/bindings/bindings_helper.h | 1 +
rust/kernel/lib.rs
This updates the Rust printing sample to invoke a tracepoint. This
ensures that we have a user in-tree from the get-go even though the
patch is being merged before its real user.
Signed-off-by: Alice Ryhl
---
MAINTAINERS| 1 +
include/trace/events/rust_sample.h | 31
define a ARCH_STATIC_BRANCH_ASM that
takes the same arguments in a consistent order so that Rust can use the
same logic for every architecture.
Suggested-by: Peter Zijlstra (Intel)
Acked-by: Peter Zijlstra (Intel)
Co-developed-by: Miguel Ojeda
Signed-off-by: Miguel Ojeda
Signed-off-by: Alice
ned-off-by: Alice Ryhl
---
rust/Makefile | 5 ++-
rust/kernel/.gitignore | 3 ++
rust/kernel/arch_static_branch_asm.rs.S | 7
rust/kernel/jump_label.rs | 64 -
rust/kernel/lib.rs
l.org/rust-for-linux/20231101-rust-binder-v1-0-08ba9197f...@google.com/
[1]
Link: https://r.android.com/3119993 [2]
Link: https://lore.kernel.org/all/20240725183325.122827-7-oj...@kernel.org/ [3]
Link: https://lore.kernel.org/all/20240815103016.2771842-1-...@metaspace.dk/ [4]
Signed-off-by: Alice
should get inlined. The
helper can be eliminated once we have the necessary inline asm to make
atomic operations from Rust.
Signed-off-by: Alice Ryhl
---
rust/bindings/bindings_helper.h | 1 +
rust/helpers.c | 9 +
rust/kernel/jump_label.rs | 29
problem that they sometimes
are emitted without a user.
Reviewed-by: Carlos Llamas
Reviewed-by: Gary Guo
Signed-off-by: Alice Ryhl
---
include/linux/tracepoint.h | 22 +-
include/trace/define_trace.h| 12 ++
rust/bindings/bindings_helper.h | 1 +
rust/kernel/lib.rs
This updates the Rust printing sample to invoke a tracepoint. This
ensures that we have a user in-tree from the get-go even though the
patch is being merged before its real user.
Signed-off-by: Alice Ryhl
---
MAINTAINERS| 1 +
include/trace/events/rust_sample.h | 31
define a ARCH_STATIC_BRANCH_ASM that
takes the same arguments in a consistent order so that Rust can use the
same logic for every architecture.
Suggested-by: Peter Zijlstra (Intel)
Acked-by: Peter Zijlstra (Intel)
Co-developed-by: Miguel Ojeda
Signed-off-by: Miguel Ojeda
Signed-off-by: Alice
ned-off-by: Alice Ryhl
---
rust/Makefile | 5 ++-
rust/kernel/.gitignore | 3 ++
rust/kernel/arch_static_branch_asm.rs.S | 7
rust/kernel/jump_label.rs | 64 -
rust/kernel/lib.rs
should get inlined. The
helper can be eliminated once we have the necessary inline asm to make
atomic operations from Rust.
Signed-off-by: Alice Ryhl
---
This is an alternate version of patch 1 that resolves the conflict with
https://lore.kernel.org/all/20240725183325.122827-7-oj...@kernel.org/
rust
On Tue, Oct 29, 2024 at 10:24 AM David Gow wrote:
>
> From: José Expósito
>
> Add a couple of Rust const functions and macros to allow to develop
> KUnit tests without relying on generated C code:
>
> - The `kunit_unsafe_test_suite!` Rust macro is similar to the
>`kunit_test_suite` C macro.
On Wed, Oct 30, 2024 at 5:59 AM David Gow wrote:
>
> On Tue, 29 Oct 2024 at 20:08, Alice Ryhl wrote:
> >
> > On Tue, Oct 29, 2024 at 10:24 AM David Gow wrote:
> > >
> > > From: José Expósito
> > >
> > > Add a couple of Rust const func
On Fri, Sep 13, 2024 at 11:33 PM Gary Guo wrote:
>
> With `long` mapped to `isize`, `size_t`/`__kernel_size_t` mapped to
> usize and `char` mapped to `u8`, many of the existing casts are no
> longer necessary.
>
> Signed-off-by: Gary Guo
This is great!
Reviewed-by: Alice Ryhl
On Tue, Feb 4, 2025 at 1:05 PM Andreas Hindborg wrote:
>
> Implement `strip_prefix` for `BStr` by deferring to `slice::strip_prefix`
> on the underlying `&[u8]`.
>
> Reviewed-by: Gary Guo
> Reviewed-by: Alice Ryhl
> Signed-off-by: Andreas Hindborg
> ---
>
&g
On Fri, Nov 1, 2024 at 7:03 AM Boqun Feng wrote:
>
> To provide using LKMM atomics for Rust code, a generic `Atomic` is
> added, currently `T` needs to be Send + Copy because these are the
> straightforward usages and all basic types support this. The trait
> `AllowAtomic` should be only ipmlement
On Fri, Nov 1, 2024 at 7:03 AM Boqun Feng wrote:
>
> Preparation for generic atomic implementation. To unify the
> ipmlementation of a generic method over `i32` and `i64`, the C side
> atomic methods need to be grouped so that in a generic method, they can
> be referred as ::, otherwise their para
On Thu, Dec 12, 2024 at 6:07 PM Boqun Feng wrote:
>
> On Thu, Dec 12, 2024 at 11:51:23AM +0100, Alice Ryhl wrote:
> > On Fri, Nov 1, 2024 at 7:03 AM Boqun Feng wrote:
> > >
> > > Preparation for generic atomic implementation. To unify the
> > > ipmlementa
On Thu, Dec 12, 2024 at 6:34 PM Boqun Feng wrote:
>
> On Thu, Dec 12, 2024 at 11:57:07AM +0100, Alice Ryhl wrote:
> [...]
> > > diff --git a/rust/kernel/sync/atomic/generic.rs
> > > b/rust/kernel/sync/atomic/generic.rs
> > > new file mode 100644
&g
On Tue, Jan 7, 2025 at 6:21 AM Jeff Xu wrote:
> Do you know which code checks for VM_MAYEXEC flag in the mprotect code
> path ? it isn't obvious to me, i.e. when I grep the VM_MAYEXEC inside
> mm path, it only shows one place in mprotect and that doesn't do the
> work.
>
> ~/mm/mm$ grep VM_MAYEXE
On Fri, Dec 27, 2024 at 2:52 AM Isaac J. Manjarres
wrote:
>
> Add tests to ensure that F_SEAL_FUTURE_EXEC behaves as expected.
>
> Signed-off-by: Isaac J. Manjarres
Reviewed-by: Alice Ryhl
On Thu, Jan 9, 2025 at 11:56 AM Andreas Hindborg wrote:
>
> Implement `strip_prefix` for `BStr` by deferring to `slice::strip_prefix`
> on the underlying `&[u8]`.
>
> Signed-off-by: Andreas Hindborg
Reviewed-by: Alice Ryhl
eviewed-by: Daniel Almeida
> Tested-by: Daniel Almeida
> Reviewed-by: Fiona Behrens
> Signed-off-by: Andreas Hindborg
Reviewed-by: Alice Ryhl
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