1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #undef TRACE_SYSTEM 3 #define TRACE_SYSTEM rwsem 4 #define TRACE_INCLUDE_PATH trace/hooks 5 #if !defined(_TRACE_HOOK_RWSEM_H) || defined(TRACE_HEADER_MULTI_READ) 6 #define _TRACE_HOOK_RWSEM_H 7 #include <linux/tracepoint.h> 8 #include <trace/hooks/vendor_hooks.h> 9 /* 10 * Following tracepoints are not exported in tracefs and provide a 11 * mechanism for vendor modules to hook and extend functionality 12 */ 13 #ifdef __GENKSYMS__ 14 struct rw_semaphore; 15 struct rwsem_waiter; 16 #else 17 /* struct rw_semaphore, struct rwsem_waiter */ 18 #include <linux/rwsem.h> 19 #endif /* __GENKSYMS__ */ 20 DECLARE_HOOK(android_vh_rwsem_init, 21 TP_PROTO(struct rw_semaphore *sem), 22 TP_ARGS(sem)); 23 DECLARE_HOOK(android_vh_rwsem_wake, 24 TP_PROTO(struct rw_semaphore *sem), 25 TP_ARGS(sem)); 26 DECLARE_HOOK(android_vh_rwsem_write_finished, 27 TP_PROTO(struct rw_semaphore *sem), 28 TP_ARGS(sem)); 29 DECLARE_HOOK(android_vh_alter_rwsem_list_add, 30 TP_PROTO(struct rwsem_waiter *waiter, 31 struct rw_semaphore *sem, 32 bool *already_on_list), 33 TP_ARGS(waiter, sem, already_on_list)); 34 DECLARE_HOOK(android_vh_rwsem_wake_finish, 35 TP_PROTO(struct rw_semaphore *sem), 36 TP_ARGS(sem)); 37 DECLARE_HOOK(android_vh_rwsem_set_owner, 38 TP_PROTO(struct rw_semaphore *sem), 39 TP_ARGS(sem)); 40 DECLARE_HOOK(android_vh_rwsem_set_reader_owned, 41 TP_PROTO(struct rw_semaphore *sem), 42 TP_ARGS(sem)); 43 DECLARE_HOOK(android_vh_rwsem_up_write_end, 44 TP_PROTO(struct rw_semaphore *sem), 45 TP_ARGS(sem)); 46 DECLARE_HOOK(android_vh_rwsem_up_read_end, 47 TP_PROTO(struct rw_semaphore *sem), 48 TP_ARGS(sem)); 49 DECLARE_HOOK(android_vh_rwsem_mark_wake_readers, 50 TP_PROTO(struct rw_semaphore *sem, struct rwsem_waiter *waiter), 51 TP_ARGS(sem, waiter)); 52 /* macro versions of hooks are no longer required */ 53 54 #endif /* _TRACE_HOOK_RWSEM_H */ 55 /* This part must be outside protection */ 56 #include <trace/define_trace.h> 57