Files
android_kernel_xiaomi_sm8450/include/trace/hooks/logbuf.h
Mukesh Ojha 34fde61f72 ANDROID: logbuf: vendor hook for logbuf dump on oops
Initial kernel bootup logs get overwritten after running
for a long time, and there can be debugging scenario where
we need initial ~100s bootup logs for debugging.
'android_vh_initial_logbuf' vendor hook is helping in
achieving this purpose.

Bug: 185182649
Change-Id: I706824aeb566c09ecaf4b5900973d6cee8a2f35b
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
2021-04-15 20:02:45 +00:00

27 lines
696 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM logbuf
#define TRACE_INCLUDE_PATH trace/hooks
#if !defined(_TRACE_HOOK_LOGBUF_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HOOK_LOGBUF_H
#include <linux/tracepoint.h>
#include <trace/hooks/vendor_hooks.h>
#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS)
struct printk_ringbuffer;
struct printk_record;
DECLARE_HOOK(android_vh_logbuf,
TP_PROTO(struct printk_ringbuffer *rb, struct printk_record *r),
TP_ARGS(rb, r))
#else
#define trace_android_vh_logbuf(rb, r)
#endif
#endif /* _TRACE_HOOK_LOGBUF_H */
/* This part must be outside protection */
#include <trace/define_trace.h>