platform_system_core/logd
Mark Salyzyn 49ed105fd9 init.rc: logd: Add logpersistd (nee logcatd)
(cherry pick from commit 100658c303)

- logpersistd is defined as a thread or process in the context of the
  logd domain. Here we define logpersistd as logcat -f in logd domain
  and call it logcatd to represent its service mechanics.
- Use logcatd to manage content in /data/misc/logd/ directory.
- Only turn on for persist.logd.logpersistd = logcatd.
- Add logpersist.start, logpersist.stop and logpersist.cat debug
  class executables, thus only in the eng and userdebug builds.

ToDo: Wish to add Developer Options menu to turn this feature on or
off, complicated by the fact that user builds have no tools with
access rights to /data/misc/logd.

Bug: 19608716
Change-Id: I57ad757f121c473d04f9fabe9d4820a0eca06f31
2015-06-02 15:28:36 -07:00
..
tests logd: test modernization 2015-06-01 14:27:02 -07:00
Android.mk init.rc: logd: Add logpersistd (nee logcatd) 2015-06-02 15:28:36 -07:00
CommandListener.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
CommandListener.h logd: add reinit command 2015-03-12 12:24:47 -07:00
event.logtags logd: annotate worst-UID pruned entries 2015-04-10 15:45:08 -07:00
FlushCommand.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
FlushCommand.h logd: replace internal CLOCK_MONOTONIC use with sequence numbers 2015-03-18 12:43:23 -07:00
libaudit.c Revert "libaudit: limit to 5 selinux denials per sec" 2015-05-11 15:43:25 -07:00
libaudit.h logd: throttle SELinux denials to 20/sec 2014-11-19 13:35:36 -08:00
LogAudit.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogAudit.h logd: auditd remove logDmesg method 2014-12-05 20:56:44 +00:00
LogBuffer.cpp logd: whitelist should not preserve expire messages 2015-06-01 14:27:02 -07:00
LogBuffer.h logd: improve details on chatty records 2015-04-30 15:25:12 -07:00
LogBufferElement.cpp logd: Add TID statistics 2015-05-13 09:23:01 -07:00
LogBufferElement.h logd: worst-UID only to preserve a day 2015-05-20 10:03:11 -07:00
LogCommand.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogCommand.h logd: institute getGroups for socket credentials 2014-02-28 13:48:33 -08:00
LogKlog.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogKlog.h logd: Add klogd 2015-05-13 09:22:45 -07:00
LogListener.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogListener.h logd: initial checkin. 2014-02-26 09:52:35 -08:00
logpersist init.rc: logd: Add logpersistd (nee logcatd) 2015-06-02 15:28:36 -07:00
LogReader.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogReader.h logd: libsysutils: logd startup outside init environment 2014-04-17 16:14:24 +00:00
LogStatistics.cpp logd: Add TID statistics 2015-05-13 09:23:01 -07:00
LogStatistics.h logd: Add TID statistics 2015-05-13 09:23:01 -07:00
LogTimes.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogTimes.h logd: replace internal CLOCK_MONOTONIC use with sequence numbers 2015-03-18 12:43:23 -07:00
LogWhiteBlackList.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogWhiteBlackList.h logd: optimize statistics 2015-03-20 12:31:23 -07:00
main.cpp logd: Add klogd 2015-05-13 09:22:45 -07:00
README.auditd logd: selinux auditd initial commit 2014-04-07 10:51:00 -07:00
README.property init.rc: logd: Add logpersistd (nee logcatd) 2015-06-02 15:28:36 -07:00

The properties that logd responds to are:

name                       type default  description
logd.auditd                 bool  true   Enable selinux audit daemon
logd.auditd.dmesg           bool  true   selinux audit messages duplicated and
                                         sent on to dmesg log
logd.klogd                  bool depends Enable klogd daemon
logd.statistics             bool depends Enable logcat -S statistics.
ro.config.low_ram           bool  false  if true, logd.statistics & logd.klogd
                                         default false
ro.build.type               string       if user, logd.statistics & logd.klogd
                                         default false
persist.logd.logpersistd    string       Enable logpersist daemon, "logcatd"
                                         turns on logcat -f in logd context
persist.logd.size          number 256K   default size of the buffer for all
                                         log ids at initial startup, at runtime
                                         use: logcat -b all -G <value>
persist.logd.size.main     number 256K   Size of the buffer for the main log
persist.logd.size.system   number 256K   Size of the buffer for the system log
persist.logd.size.radio    number 256K   Size of the buffer for the radio log
persist.logd.size.event    number 256K   Size of the buffer for the event log
persist.logd.size.crash    number 256K   Size of the buffer for the crash log

NB:
- number support multipliers (K or M) for convenience. Range is limited
  to between 64K and 256M for log buffer sizes. Individual logs override the
  global default.