05c23b7a50
We want to add some hooks in the binder module so that we can reduce block time until binder thread is available Here are what new hooks do for: 1、android_vh_binder_looper_state_registered: choose a binder thread(do proc work) as a low-level thread.Only this thread has power to excute background binder transaction. 2、android_vh_binder_thread_read: let binder thread do works which come from our list. 3、android_vh_binder_free_proc: free some pointers and variable. 4、android_vh_binder_thread_release: free the list that we create before. 5、android_vh_binder_has_work_ilocked: to check if our list has work. 6、android_vh_binder_read_done: because of we add hook in binder_has_work_ilocked, binder_has_work_ilocked may return true, so we try to wake up low-level thread immediately. Bug: 212483521 Change-Id: Ic40f452cc4dcf8fc85422e23e6f1a7ad77547309 Signed-off-by: Liujie Xie <xieliujie@oppo.com>
106 lines
4.5 KiB
C
106 lines
4.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM binder
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH trace/hooks
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#if !defined(_TRACE_HOOK_BINDER_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_HOOK_BINDER_H
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#include <linux/tracepoint.h>
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#include <trace/hooks/vendor_hooks.h>
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/*
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* Following tracepoints are not exported in tracefs and provide a
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* mechanism for vendor modules to hook and extend functionality
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*/
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struct binder_transaction;
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struct task_struct;
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struct binder_alloc;
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struct binder_proc;
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struct binder_thread;
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struct binder_transaction_data;
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struct seq_file;
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DECLARE_HOOK(android_vh_binder_transaction_init,
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TP_PROTO(struct binder_transaction *t),
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TP_ARGS(t));
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DECLARE_HOOK(android_vh_binder_priority_skip,
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TP_PROTO(struct task_struct *task, bool *skip),
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TP_ARGS(task, skip));
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DECLARE_HOOK(android_vh_binder_set_priority,
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TP_PROTO(struct binder_transaction *t, struct task_struct *task),
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TP_ARGS(t, task));
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DECLARE_HOOK(android_vh_binder_restore_priority,
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TP_PROTO(struct binder_transaction *t, struct task_struct *task),
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TP_ARGS(t, task));
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struct binder_proc;
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struct binder_thread;
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DECLARE_HOOK(android_vh_binder_wakeup_ilocked,
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TP_PROTO(struct task_struct *task, bool sync, struct binder_proc *proc),
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TP_ARGS(task, sync, proc));
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DECLARE_HOOK(android_vh_binder_wait_for_work,
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TP_PROTO(bool do_proc_work, struct binder_thread *tsk, struct binder_proc *proc),
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TP_ARGS(do_proc_work, tsk, proc));
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DECLARE_HOOK(android_vh_sync_txn_recvd,
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TP_PROTO(struct task_struct *tsk, struct task_struct *from),
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TP_ARGS(tsk, from));
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DECLARE_HOOK(android_vh_binder_alloc_new_buf_locked,
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TP_PROTO(size_t size, struct binder_alloc *alloc, int is_async),
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TP_ARGS(size, alloc, is_async));
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DECLARE_HOOK(android_vh_binder_reply,
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TP_PROTO(struct binder_proc *target_proc, struct binder_proc *proc,
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struct binder_thread *thread, struct binder_transaction_data *tr),
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TP_ARGS(target_proc, proc, thread, tr));
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DECLARE_HOOK(android_vh_binder_trans,
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TP_PROTO(struct binder_proc *target_proc, struct binder_proc *proc,
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struct binder_thread *thread, struct binder_transaction_data *tr),
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TP_ARGS(target_proc, proc, thread, tr));
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DECLARE_RESTRICTED_HOOK(android_rvh_binder_transaction,
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TP_PROTO(struct binder_proc *target_proc, struct binder_proc *proc,
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struct binder_thread *thread, struct binder_transaction_data *tr),
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TP_ARGS(target_proc, proc, thread, tr), 1);
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DECLARE_HOOK(android_vh_binder_preset,
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TP_PROTO(struct hlist_head *hhead, struct mutex *lock),
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TP_ARGS(hhead, lock));
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DECLARE_HOOK(android_vh_binder_proc_transaction,
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TP_PROTO(struct task_struct *caller_task, struct task_struct *binder_proc_task,
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struct task_struct *binder_th_task, int node_debug_id,
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unsigned int code, bool pending_async),
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TP_ARGS(caller_task, binder_proc_task, binder_th_task, node_debug_id, code, pending_async));
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DECLARE_HOOK(android_vh_binder_proc_transaction_end,
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TP_PROTO(struct task_struct *caller_task, struct task_struct *binder_proc_task,
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struct task_struct *binder_th_task, unsigned int code,
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bool pending_async, bool sync),
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TP_ARGS(caller_task, binder_proc_task, binder_th_task, code, pending_async, sync));
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DECLARE_HOOK(android_vh_binder_new_ref,
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TP_PROTO(struct task_struct *proc, uint32_t ref_desc, int node_debug_id),
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TP_ARGS(proc, ref_desc, node_debug_id));
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DECLARE_HOOK(android_vh_binder_del_ref,
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TP_PROTO(struct task_struct *proc, uint32_t ref_desc),
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TP_ARGS(proc, ref_desc));
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DECLARE_HOOK(android_vh_binder_print_transaction_info,
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TP_PROTO(struct seq_file *m, struct binder_proc *proc,
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const char *prefix, struct binder_transaction *t),
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TP_ARGS(m, proc, prefix, t));
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DECLARE_HOOK(android_vh_binder_looper_state_registered,
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TP_PROTO(struct binder_thread *thread, struct binder_proc *proc),
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TP_ARGS(thread, proc));
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DECLARE_HOOK(android_vh_binder_thread_read,
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TP_PROTO(struct list_head **list, struct binder_proc *proc,
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struct binder_thread *thread),
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TP_ARGS(list, proc, thread));
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DECLARE_HOOK(android_vh_binder_free_proc,
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TP_PROTO(struct binder_proc *proc),
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TP_ARGS(proc));
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DECLARE_HOOK(android_vh_binder_thread_release,
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TP_PROTO(struct binder_proc *proc, struct binder_thread *thread),
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TP_ARGS(proc, thread));
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DECLARE_HOOK(android_vh_binder_read_done,
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TP_PROTO(struct binder_proc *proc, struct binder_thread *thread),
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TP_ARGS(proc, thread));
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DECLARE_HOOK(android_vh_binder_has_work_ilocked,
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TP_PROTO(struct binder_thread *thread, bool do_proc_work, int *ret),
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TP_ARGS(thread, do_proc_work, ret));
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/* macro versions of hooks are no longer required */
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#endif /* _TRACE_HOOK_BINDER_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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