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ANDROID: vendor_hooks: Add hooks for signal

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Add hook to boost thread when process killed.

Bug: 237749933
Signed-off-by: xieliujie <xieliujie@oppo.com>
Change-Id: I7cc6f248397021f3a8271433144a0e582ed27cfa
(cherry picked from commit 709679142d583b0b7338d931fdd43b27b1bbf9e0)
(cherry picked from commit 226f36eddd)
This commit is contained in:
xieliujie
2022-07-01 18:42:13 +08:00
committed by Treehugger Robot
parent bfbebce3f7
commit bf8bbc3ff8
3 changed files with 5 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
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@@ -241,3 +241,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mmap_region);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_try_to_unmap_one);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_psi_event);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_psi_group);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_exit_signal);

3
include/trace/hooks/signal.h
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@@ -11,6 +11,9 @@ 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));
DECLARE_HOOK(android_vh_exit_signal,
TP_PROTO(struct task_struct *task),
TP_ARGS(task));
#endif /* _TRACE_HOOK_SIGNAL_H */
/* This part must be outside protection */
#include <trace/define_trace.h>

1
kernel/signal.c
View File

@@ -1057,6 +1057,7 @@ static void complete_signal(int sig, struct task_struct *p, enum pid_type type)
signal->group_stop_count = 0;
t = p;
do {
trace_android_vh_exit_signal(t);
task_clear_jobctl_pending(t, JOBCTL_PENDING_MASK);
sigaddset(&t->pending.signal, SIGKILL);
signal_wake_up(t, 1);