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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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Rust
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677// SPDX-License-Identifier: GPL-2.0// Copyright (C) 2026 Google LLC.
//! Binder debugging helpers.
#![allow(dead_code)]
use kernel::bits::bit_u32;use kernel::sync::atomic::Atomic;
kernel::impl_flags!( /// Represents multiple debug mask flags. #[derive(Debug, Clone, Default, Copy, PartialEq, Eq)] pub struct DebugMasks(u32);
/// Represents a single debug mask category. #[derive(Debug, Clone, Copy, PartialEq, Eq)] pub enum DebugMask { UserError = bit_u32(0), FailedTransaction = bit_u32(1), DeadTransaction = bit_u32(2), OpenClose = bit_u32(3), DeadBinder = bit_u32(4), DeathNotification = bit_u32(5), ReadWrite = bit_u32(6), UserRefs = bit_u32(7), Threads = bit_u32(8), Transaction = bit_u32(9), TransactionComplete = bit_u32(10), FreeBuffer = bit_u32(11), InternalRefs = bit_u32(12), PriorityCap = bit_u32(13), Spinlocks = bit_u32(14), });
#[no_mangle]pub(crate) static rust_binder_debug_mask: Atomic<u32> = Atomic::new( (DebugMask::UserError as u32) | (DebugMask::FailedTransaction as u32) | (DebugMask::DeadTransaction as u32),);
/// Checks if the given debug logging category is enabled in the mask.pub(crate) fn debug_mask_enabled(mask: DebugMask) -> bool { let current_mask = rust_binder_debug_mask.load(kernel::sync::atomic::Relaxed); DebugMasks(current_mask).contains(mask)}
/// Prints a debug log if the specified mask category is enabled.#[macro_export]macro_rules! binder_debug { // Rule to explicitly specify a PID (used in kworkers). (pid=$pid:expr, $mask:ident, $($arg:tt)*) => { if $crate::debug::debug_mask_enabled($crate::debug::DebugMask::$mask) { kernel::pr_info!( "{}: {}\n", $pid, kernel::prelude::fmt!($($arg)*) ); } };
// Default rule (automatically prepends "PID:TID" of the current calling thread). ($mask:ident, $($arg:tt)*) => { if $crate::debug::debug_mask_enabled($crate::debug::DebugMask::$mask) { let thread = kernel::current!(); kernel::pr_info!( "{}:{} {}\n", thread.tgid(), thread.pid(), kernel::prelude::fmt!($($arg)*) ); } };}