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Android Binder杂记

2022年07月19日26qq78292959

1. Binder的系统日志文件

# ps -A | grep suspend 
system          699      1 2184444   4564 binder_ioctl_write_read 0 S android.system.suspend@1.0-service 
# ls /proc/699/fd -l 
... 
lrwx------ 1 system system 64 2021-04-17 15:58 7 -> /dev/binderfs/hwbinder 
lrwx------ 1 system system 64 2021-04-17 15:58 8 -> /dev/binderfs/binder 
... 
# cd /dev/binderfs/ 
/dev/binderfs # ls -l 
crw-rw-rw- 1 root root 487,   1 1970-04-23 22:13 binder 
crw------- 1 root root 487,   0 1970-04-23 22:13 binder-control 
drwxr-xr-x 3 root root        0 1970-04-23 22:13 binder_logs 
crw-rw-rw- 1 root root 487,   2 1970-04-23 22:13 hwbinder 
crw-rw-rw- 1 root root 487,   3 1970-04-23 22:13 vndbinder 
/dev/binderfs # cd binder_logs 
/dev/binderfs/binder_logs # ls -l 
-r--r--r-- 1 root root 0 1970-04-23 22:13 failed_transaction_log 
drwxr-xr-x 2 root root 0 2021-04-17 16:02 proc 
-r--r--r-- 1 root root 0 1970-04-23 22:13 state 
-r--r--r-- 1 root root 0 1970-04-23 22:13 stats 
-r--r--r-- 1 root root 0 1970-04-23 22:13 transaction_log 
-r--r--r-- 1 root root 0 1970-04-23 22:13 transactions

本文参考链接:https://www.cnblogs.com/hellokitty2/p/14671012.html