eb80a7e84f
we want to record tasks who will own sem, so we need to add some hook in rwsem.c Bug: 230829284 Change-Id: Ide66540aa38d6058d8aad5f94f4403be991078a4 Signed-off-by: Peifeng Li <lipeifeng@oppo.com>
52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM rwsem
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#define TRACE_INCLUDE_PATH trace/hooks
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#if !defined(_TRACE_HOOK_RWSEM_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_HOOK_RWSEM_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 rw_semaphore;
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struct rwsem_waiter;
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DECLARE_HOOK(android_vh_rwsem_init,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_wake,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_write_finished,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_alter_rwsem_list_add,
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TP_PROTO(struct rwsem_waiter *waiter,
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struct rw_semaphore *sem,
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bool *already_on_list),
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TP_ARGS(waiter, sem, already_on_list));
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DECLARE_HOOK(android_vh_rwsem_wake_finish,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_set_owner,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_set_reader_owned,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_up_write_end,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_up_read_end,
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TP_PROTO(struct rw_semaphore *sem),
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TP_ARGS(sem));
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DECLARE_HOOK(android_vh_rwsem_mark_wake_readers,
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TP_PROTO(struct rw_semaphore *sem, struct rwsem_waiter *waiter),
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TP_ARGS(sem, waiter));
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/* macro versions of hooks are no longer required */
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#endif /* _TRACE_HOOK_RWSEM_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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