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ANDROID: arm64: add vendor hooks for kernel fault cases

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Add hooks to gather data of kernel fault and summarize it with
other information.

Bug: 222638752
Bug: 375562078
Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com>
Change-Id: I7d6a66837f2e896a413bd8d878f26928669d96e6
(cherry picked from commit 61d7b6c74146bc73ba1f316f8043ac1c0effb0e9)
This commit is contained in:
Sangmoon Kim
2021-01-19 21:23:13 +09:00
committed by qinglin.li
parent 9886b7e3cb
commit 91af50bc09
3 changed files with 23 additions and 0 deletions
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arch/arm64/mm/fault.c
+3
View File
@@ -44,6 +44,8 @@
#include <asm/tlbflush.h>
#include <asm/traps.h>
#include <trace/hooks/fault.h>
struct fault_info {
int (*fn)(unsigned long far, unsigned long esr,
struct pt_regs *regs);
@@ -786,6 +788,7 @@ static int do_sea(unsigned long far, unsigned long esr, struct pt_regs *regs)
*/
siaddr = untagged_addr(far);
}
trace_android_rvh_do_sea(siaddr, esr, regs);
arm64_notify_die(inf->name, regs, inf->sig, inf->code, siaddr, esr);
return 0;
drivers/android/vendor_hooks.c
+2
View File
@@ -39,6 +39,7 @@
#include <trace/hooks/ftrace_dump.h>
#include <trace/hooks/mm.h>
#include <trace/hooks/traps.h>
#include <trace/hooks/fault.h>
/*
* Export tracepoints that act as a bare tracehook (ie: have no trace event
@@ -114,3 +115,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_look_around);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_look_around_migrate_folio);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_test_clear_look_around_ref);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_arm64_serror_panic);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_do_sea);
include/trace/hooks/fault.h
+18
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@@ -0,0 +1,18 @@
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM fault
#define TRACE_INCLUDE_PATH trace/hooks
#if !defined(_TRACE_HOOK_FAULT_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HOOK_FAULT_H
#include <trace/hooks/vendor_hooks.h>
struct pt_regs;
DECLARE_RESTRICTED_HOOK(android_rvh_do_sea,
TP_PROTO(unsigned long addr, unsigned long esr, struct pt_regs *regs),
TP_ARGS(addr, esr, regs), 1);
#endif /* _TRACE_HOOK_FAULT_H */
/* This part must be outside protection */
#include <trace/define_trace.h>