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Commit 7285ca6e authored by Frankie Chang's avatar Frankie Chang Committed by Todd Kjos
Browse files

ANDROID: Add vendor hooks when syscall prctl finished 



Add vendor hook when syscall prctl finished for vendor-specific tuning.

Bug: 181819699

Signed-off-by: default avatarFrankie Chang <frankie.chang@mediatek.com>
Change-Id: Ica42d80ab4b540045330e9c5b211e0e814eed0ff
(cherry picked from commit 6904f0001e4ec3c637539c18969e46755eaa01f4)
parent 4b22a632

drivers/android/vendor_hooks.c

+2 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
#include <trace/hooks/wqlockup.h>

#include <trace/hooks/sysrqcrash.h>

#include <trace/hooks/cgroup.h>

#include <trace/hooks/sys.h>



/*

 * Export tracepoints that act as a bare tracehook (ie: have no trace event
@@ -71,3 +72,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_busiest_group); 
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_map_util_freq);

EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_em_pd_energy);

EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cgroup_set_task);

EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_syscall_prctl_finished);

include/trace/hooks/sys.h

0 → 100644
+17 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

#undef TRACE_SYSTEM

#define TRACE_SYSTEM sys

#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH trace/hooks

#if !defined(_TRACE_HOOK_SYS_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_HOOK_SYS_H

#include <linux/tracepoint.h>

#include <trace/hooks/vendor_hooks.h>



struct task_struct;

DECLARE_HOOK(android_vh_syscall_prctl_finished,

	TP_PROTO(int option, struct task_struct *task),

	TP_ARGS(option, task));

#endif



#include <trace/define_trace.h>

kernel/sys.c

+3 −0
Original line number Diff line number Diff line
@@ -75,6 +75,8 @@ 


#include "uid16.h"



#include <trace/hooks/sys.h>



#ifndef SET_UNALIGN_CTL

# define SET_UNALIGN_CTL(a, b)	(-EINVAL)

#endif
@@ -2644,6 +2646,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, 
		error = -EINVAL;

		break;

	}

	trace_android_vh_syscall_prctl_finished(option, me);

	return error;

}