A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-08 12:58:12 -04:00
Code Issues Projects Releases Packages Wiki Activity

ANDROID: vendor_hooks: Add vendor hooks for getting printk messages

Browse source 
When sudden reset by watchdog occurs, kernel log is very helpful.
But the log has saved structure type in log_buf.
So we want to collect the log on runtime to string format at other
reserved memory.

Bug: 167766040

Change-Id: Ic9686acc7c284e2ab81395fb9cc076fafe142bf9
Signed-off-by: Changki Kim <changki.kim@samsung.com>
This commit is contained in:
Changki Kim 2020-09-04 15:47:31 +09:00 • committed by Todd Kjos
commit bad091cc4b
3 changed files with 9 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
kernel/printk/printk.c
View file

@ -55,6 +55,8 @@
#include <trace/events/initcall.h>
#define CREATE_TRACE_POINTS
#include <trace/events/printk.h>
#undef CREATE_TRACE_POINTS
#include <trace/hooks/debug.h>
#include "console_cmdline.h"
#include "braille.h"
@ -2007,6 +2009,7 @@ asmlinkage int vprintk_emit(int facility, int level,
pending_output = (curr_log_seq != log_next_seq);
logbuf_unlock_irqrestore(flags);
trace_android_vh_printk_store(facility, level);
/* If called from the scheduler, we can not call up(). */
if (!in_sched && pending_output) {
/*