diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c index 6ac7063c9247..d2db8a2cc9b6 100644 --- a/drivers/android/vendor_hooks.c +++ b/drivers/android/vendor_hooks.c @@ -49,6 +49,7 @@ #include #include #include +#include /* * Export tracepoints that act as a bare tracehook (ie: have no trace event @@ -73,6 +74,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_transaction_init); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_set_priority); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_restore_priority); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_wakeup_ilocked); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_do_send_sig_info); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_init); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_wake); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_write_finished); diff --git a/include/trace/hooks/signal.h b/include/trace/hooks/signal.h new file mode 100644 index 000000000000..ec9c5e86661b --- /dev/null +++ b/include/trace/hooks/signal.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM signal +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH trace/hooks +#if !defined(_TRACE_HOOK_SIGNAL_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_HOOK_SIGNAL_H +#include +#include + +struct task_struct; +DECLARE_HOOK(android_vh_do_send_sig_info, + TP_PROTO(int sig, struct task_struct *killer, struct task_struct *dst), + TP_ARGS(sig, killer, dst)); +#endif /* _TRACE_HOOK_SIGNAL_H */ +/* This part must be outside protection */ +#include diff --git a/kernel/signal.c b/kernel/signal.c index 6bcecf662d7e..0b0831d8b12c 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -57,6 +57,8 @@ #include #include +#undef CREATE_TRACE_POINTS +#include /* * SLAB caches for signal bits. */ @@ -1299,7 +1301,7 @@ int do_send_sig_info(int sig, struct kernel_siginfo *info, struct task_struct *p { unsigned long flags; int ret = -ESRCH; - + trace_android_vh_do_send_sig_info(sig, current, p); if (lock_task_sighand(p, &flags)) { ret = send_signal(sig, info, p, type); unlock_task_sighand(p, &flags);