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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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c1ea31205e
This patch adds the binder_transaction tracepoint to Rust Binder. This was chosen as the next tracepoint to add as it is the most complex tracepoint. (And it's also an important tracepoint known to perfetto.) Signed-off-by: Alice Ryhl <aliceryhl@google.com> Link: https://patch.msgid.link/20251203-binder-trace1-v1-2-22d3ffddb44e@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2025 Google, Inc.
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*/
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#undef TRACE_SYSTEM
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#undef TRACE_INCLUDE_FILE
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#undef TRACE_INCLUDE_PATH
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#define TRACE_SYSTEM rust_binder
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#define TRACE_INCLUDE_FILE rust_binder_events
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#define TRACE_INCLUDE_PATH ../drivers/android/binder
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#if !defined(_RUST_BINDER_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _RUST_BINDER_TRACE_H
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#include <linux/tracepoint.h>
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TRACE_EVENT(rust_binder_ioctl,
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TP_PROTO(unsigned int cmd, unsigned long arg),
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TP_ARGS(cmd, arg),
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TP_STRUCT__entry(
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__field(unsigned int, cmd)
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__field(unsigned long, arg)
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),
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TP_fast_assign(
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__entry->cmd = cmd;
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__entry->arg = arg;
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),
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TP_printk("cmd=0x%x arg=0x%lx", __entry->cmd, __entry->arg)
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);
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TRACE_EVENT(rust_binder_transaction,
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TP_PROTO(bool reply, rust_binder_transaction t, struct task_struct *thread),
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TP_ARGS(reply, t, thread),
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TP_STRUCT__entry(
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__field(int, debug_id)
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__field(int, target_node)
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__field(int, to_proc)
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__field(int, to_thread)
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__field(int, reply)
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__field(unsigned int, code)
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__field(unsigned int, flags)
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),
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TP_fast_assign(
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rust_binder_process to = rust_binder_transaction_to_proc(t);
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rust_binder_node target_node = rust_binder_transaction_target_node(t);
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__entry->debug_id = rust_binder_transaction_debug_id(t);
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__entry->target_node = target_node ? rust_binder_node_debug_id(target_node) : 0;
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__entry->to_proc = rust_binder_process_task(to)->pid;
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__entry->to_thread = thread ? thread->pid : 0;
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__entry->reply = reply;
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__entry->code = rust_binder_transaction_code(t);
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__entry->flags = rust_binder_transaction_flags(t);
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),
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TP_printk("transaction=%d dest_node=%d dest_proc=%d dest_thread=%d reply=%d flags=0x%x code=0x%x",
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__entry->debug_id, __entry->target_node,
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__entry->to_proc, __entry->to_thread,
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__entry->reply, __entry->flags, __entry->code)
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);
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#endif /* _RUST_BINDER_TRACE_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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