1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #undef TRACE_SYSTEM 3 #define TRACE_SYSTEM futex 4 #undef TRACE_INCLUDE_PATH 5 #define TRACE_INCLUDE_PATH trace/hooks 6 #if !defined(_TRACE_HOOK_FUTEX_H) || defined(TRACE_HEADER_MULTI_READ) 7 #define _TRACE_HOOK_FUTEX_H 8 #include <linux/tracepoint.h> 9 #include <trace/hooks/vendor_hooks.h> 10 #include <linux/plist.h> 11 #ifndef __GENKSYMS__ 12 #include <linux/futex.h> 13 #endif 14 15 /* 16 * Following tracepoints are not exported in tracefs and provide a 17 * mechanism for vendor modules to hook and extend functionality 18 */ 19 DECLARE_HOOK(android_vh_alter_futex_plist_add, 20 TP_PROTO(struct plist_node *node, 21 struct plist_head *head, 22 bool *already_on_hb), 23 TP_ARGS(node, head, already_on_hb)); 24 25 DECLARE_HOOK(android_vh_futex_sleep_start, 26 TP_PROTO(struct task_struct *p), 27 TP_ARGS(p)); 28 29 DECLARE_HOOK(android_vh_do_futex, 30 TP_PROTO(int cmd, 31 unsigned int *flags, 32 u32 __user *uaddr2), 33 TP_ARGS(cmd, flags, uaddr2)); 34 35 DECLARE_HOOK(android_vh_futex_wait_start, 36 TP_PROTO(unsigned int flags, 37 u32 bitset), 38 TP_ARGS(flags, bitset)); 39 40 DECLARE_HOOK(android_vh_futex_wait_end, 41 TP_PROTO(unsigned int flags, 42 u32 bitset), 43 TP_ARGS(flags, bitset)); 44 45 DECLARE_HOOK(android_vh_futex_wake_traverse_plist, 46 TP_PROTO(struct plist_head *chain, int *target_nr, 47 union futex_key key, u32 bitset), 48 TP_ARGS(chain, target_nr, key, bitset)); 49 50 DECLARE_HOOK(android_vh_futex_wake_this, 51 TP_PROTO(int ret, int nr_wake, int target_nr, 52 struct task_struct *p), 53 TP_ARGS(ret, nr_wake, target_nr, p)); 54 55 DECLARE_HOOK(android_vh_futex_wake_up_q_finish, 56 TP_PROTO(int nr_wake, int target_nr), 57 TP_ARGS(nr_wake, target_nr)); 58 59 /* macro versions of hooks are no longer required */ 60 61 #endif /* _TRACE_HOOK_FUTEX_H */ 62 /* This part must be outside protection */ 63 #include <trace/define_trace.h> 64