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a=openpgp-sha256; l=2864; i=aliceryhl@google.com; h=from:subject:message-id; bh=4LTNjgJgvGqNq7J29QKVGs2V+h5UNIrd7eT8oEJbNBM=; b=owEBbQKS/ZANAwAKAQRYvu5YxjlGAcsmYgBpjwz4ba/pGfcwxzqFFR+EX+9yplWJyIqVLiGzY TWKQYpCXKqJAjMEAAEKAB0WIQSDkqKUTWQHCvFIvbIEWL7uWMY5RgUCaY8M+AAKCRAEWL7uWMY5 RuEAD/9TnK7CeIaWplyYB0pi5DRRdsI4j7fa0PsvDmZC9Pk9zV7WKkSVYDNeDupwroYk3DDnaUY PUMQPvXcrrf2q9TICZcC7fZY/ciPMGZg+ezb/Mw+UFrO5t4EikzbD0+0gNakrDomBBxx6ipXHmk Lyu696apNAEMIfpR+ax3f7/RNEDXPRejt156KkGxzHziy0iljxNWOcBBKpo+FlNo+NBf0QmR/hY pW+spq+zrhEynmJCoDQgag+y0hwLVjIp7keuMMLneHX7SjXnNv3cYXWwPQDPuZJ6euBvNEVW2Za IdpF8UHZxQoR6naKT8QZsIgl4DG57Itaou0C8Ou2UTob2juIxO0NW2uJbJ36O6v7wHI0fqPoC40 72hFSxNDSxvZiiXpbkT4ju6pg2xMx/cFx8ad4lsD9DRJVJFElIMrIZ9GZVg+AEy7z3PE6kYLC6X 1xbH3hVixltOL2JA1SnDiNTxqMayY/qsYAwK22iSOQY26xN419wf+FVuEaM2qn0QDTxIR7V1iuo Y6WnmXfQfnl/XiskB1KKPtxrJABri8kWbbtWUzKq1J1CM84hOM+nxp1ojE0pDtCB4Ug7dJHfIj2 +Ih0soxlqTiVaYfWmGKB3D54ky+TzZ0RoFM0Gp4oO5MRwyTjY8L2/jPYK5VZ0/CwD9bipA05B1q w0FYLdDjSHvTy3A== X-Mailer: b4 0.14.2 Message-ID: <20260213-rust-binder-ps-v1-1-6b90f83c0b4d@google.com> Subject: [PATCH] rust_binder: avoid name mangling for get_work[_local] From: Alice Ryhl To: Greg Kroah-Hartman , Carlos Llamas Cc: Miguel Ojeda , Boqun Feng , Gary Guo , "=?utf-8?q?Bj=C3=B6rn_Roy_Baron?=" , Benno Lossin , Andreas Hindborg , Trevor Gross , Danilo Krummrich , linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, Matthew Maurer , Alice Ryhl Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Currently ps -A shows processes waiting on schedule() in functions with names such as do_epoll_wait, wait_woken, and the impeccably named _RNvMs2_NtCs8QPsHWIn21X_16rust_binder_main6threadNtB5_6Thread8get_work. To improve how ps output looks, give explicit non-mangled names to the functions where Rust Binder calls schedule(), since these are the most likely places to show up on ps output. The name of rust_binder_waitlcl is truncated instead of using _local suffix because rust_binder_wait_local is sufficiently long that ps shows unaligned output. Suggested-by: Matthew Maurer Signed-off-by: Alice Ryhl --- drivers/android/binder/process.rs | 1 + drivers/android/binder/thread.rs | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/android/binder/process.rs b/drivers/android/binder/pro= cess.rs index 132055b4790f0ec69a87635b498909df2bf475e2..cf7425e74183966063ab5311463= 7aec7b3672ac8 100644 --- a/drivers/android/binder/process.rs +++ b/drivers/android/binder/process.rs @@ -1436,6 +1436,7 @@ pub(crate) fn drop_outstanding_txn(&self) { } } =20 + #[export_name =3D "rust_binder_freeze"] pub(crate) fn ioctl_freeze(&self, info: &BinderFreezeInfo) -> Result { if info.enable =3D=3D 0 { let msgs =3D self.prepare_freeze_messages()?; diff --git a/drivers/android/binder/thread.rs b/drivers/android/binder/thre= ad.rs index 1f1709a6a77abc1c865cc9387e7ba7493448c71d..2ca8ed8962314b58a3cfeb3ae0a= a0ed60f179433 100644 --- a/drivers/android/binder/thread.rs +++ b/drivers/android/binder/thread.rs @@ -514,6 +514,7 @@ pub(crate) fn has_current_transaction(&self) -> bool { /// Attempts to fetch a work item from the thread-local queue. The beh= aviour if the queue is /// empty depends on `wait`: if it is true, the function waits for som= e work to be queued (or a /// signal); otherwise it returns indicating that none is available. + #[export_name =3D "rust_binder_waitlcl"] fn get_work_local(self: &Arc, wait: bool) -> Result>> { { let mut inner =3D self.inner.lock(); @@ -552,6 +553,7 @@ fn get_work_local(self: &Arc, wait: bool) -> Resu= lt, wait: bool) -> Result>> { // Try to get work from the thread's work queue, using only a loca= l lock. { --- base-commit: cee73b1e840c154f64ace682cb477c1ae2e29cc4 change-id: 20260213-rust-binder-ps-46d9d060243a Best regards, --=20 Alice Ryhl