From 9886b7e3cb79b18e35ee7d90cd06be999c0c90ff Mon Sep 17 00:00:00 2001
From: Sangmoon Kim <sangmoon.kim@samsung.com>
Date: Tue, 19 Jan 2021 21:24:58 +0900
Subject: [PATCH] ANDROID: arm64: add vendor hooks for unusal abort cases

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)
---
 arch/arm64/kernel/traps.c      |  4 ++++
 drivers/android/vendor_hooks.c |  2 ++
 include/trace/hooks/traps.h    | 18 ++++++++++++++++++
 3 files changed, 24 insertions(+)
 create mode 100644 include/trace/hooks/traps.h

diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 563cbce11126..99767f3beb85 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -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);
 
diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 70234211137a..a108d00a2035 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -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);
diff --git a/include/trace/hooks/traps.h b/include/trace/hooks/traps.h
new file mode 100644
index 000000000000..47a2a7823121
--- /dev/null
+++ b/include/trace/hooks/traps.h
@@ -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>