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ANDROID: arm64: add vendor hooks for unusal abort cases

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Add hooks to gather data of unsual aborts and summarize it with
other information.

Bug: 222638752
Bug: 375562078
Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com>
Change-Id: I74eb36b8551ed9a5e6dc87507939a7f4d81c9c18
(cherry picked from commit 102255d1e45607da700f715c5c100427170751a2)
This commit is contained in:
Sangmoon Kim
2021-01-19 21:24:58 +09:00
committed by qinglin.li
parent 646712ef72
commit 9886b7e3cb
3 changed files with 24 additions and 0 deletions
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arch/arm64/kernel/traps.c
+4
View File
@@ -49,6 +49,8 @@
#include <asm/system_misc.h>
#include <asm/sysreg.h>
#include <trace/hooks/traps.h>
static bool __kprobes __check_eq(unsigned long pstate)
{
return (pstate & PSR_Z_BIT) != 0;
@@ -925,6 +927,8 @@ void __noreturn arm64_serror_panic(struct pt_regs *regs, unsigned long esr)
pr_crit("SError Interrupt on CPU%d, code 0x%016lx -- %s\n",
smp_processor_id(), esr, esr_get_class_string(esr));
trace_android_rvh_arm64_serror_panic(regs, esr);
if (regs)
__show_regs(regs);
drivers/android/vendor_hooks.c
+2
View File
@@ -38,6 +38,7 @@
#include <trace/hooks/dtask.h>
#include <trace/hooks/ftrace_dump.h>
#include <trace/hooks/mm.h>
#include <trace/hooks/traps.h>
/*
* Export tracepoints that act as a bare tracehook (ie: have no trace event
@@ -112,3 +113,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_check_folio_look_around_ref);
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);
include/trace/hooks/traps.h
+18
View File
@@ -0,0 +1,18 @@
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM traps
#define TRACE_INCLUDE_PATH trace/hooks
#if !defined(_TRACE_HOOK_TRAPS_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HOOK_TRAPS_H
#include <trace/hooks/vendor_hooks.h>
struct pt_regs;
DECLARE_RESTRICTED_HOOK(android_rvh_arm64_serror_panic,
TP_PROTO(struct pt_regs *regs, unsigned long esr),
TP_ARGS(regs, esr), 1);
#endif /* _TRACE_HOOK_TRAPS_H */
/* This part must be outside protection */
#include <trace/define_trace.h>