68261eec24
__android_logger_property_get_bool() has a clunky API and doesn't belong in liblog, since a vast majority of liblog users will never query this property. Specifically 1) Replace with GetBoolProperty() when completely equivalent. 2) Remove checking if property values are 'eng' or 'svelte', since there's no evidence that those values were ever used. 3) Remove checking 'persist.logd.statistics' and 'ro.logd.statistics', since there's no evidence that those values were ever used. 4) Set ro.logd.kernel explicitly, so other processes don't need to replicate the defaults that logd uses. Test: build Change-Id: I7c37af64ba7754e839185f46da66bf077f09d9c3
72 lines
4.9 KiB
Text
72 lines
4.9 KiB
Text
The properties that logd and friends react to are:
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name type default description
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ro.logd.auditd bool true Enable selinux audit daemon
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ro.logd.auditd.dmesg bool true selinux audit messages sent to dmesg.
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ro.logd.auditd.main bool true selinux audit messages sent to main.
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ro.logd.auditd.events bool true selinux audit messages sent to events.
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persist.logd.security bool false Enable security buffer.
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ro.organization_owned bool false Override persist.logd.security to false
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ro.logd.kernel bool svelte+ Enable klogd daemon
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logd.statistics bool svelte+ Enable logcat -S statistics.
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ro.debuggable number if not "1", logd.statistics &
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ro.logd.kernel default false.
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logd.logpersistd.enable bool auto Safe to start logpersist daemon service
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logd.logpersistd string persist Enable logpersist daemon, "logcatd"
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turns on logcat -f in logd context.
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Responds to logcatd, clear and stop.
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logd.logpersistd.buffer persist logpersistd buffers to collect
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logd.logpersistd.size persist logpersistd size in MB
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logd.logpersistd.rotate_kbytes persist logpersistd outout file size in KB.
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persist.logd.logpersistd string Enable logpersist daemon, "logcatd"
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turns on logcat -f in logd context.
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persist.logd.logpersistd.buffer all logpersistd buffers to collect
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persist.logd.logpersistd.size 256 logpersistd size in MB
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persist.logd.logpersistd.count 256 sets max number of rotated logs to <count>.
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persist.logd.logpersistd.rotate_kbytes 1024 logpersistd output file size in KB
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persist.logd.size number ro Global default size of the buffer for
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all log ids at initial startup, at
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runtime use: logcat -b all -G <value>
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ro.logd.size number svelte default for persist.logd.size. Larger
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platform default sizes than 256KB are
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known to not scale well under log spam
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pressure. Address the spam first,
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resist increasing the log buffer.
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persist.logd.size.<buffer> number ro Size of the buffer for <buffer> log
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ro.logd.size.<buffer> number svelte default for persist.logd.size.<buffer>
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ro.config.low_ram bool false if true, logd.statistics,
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ro.logd.kernel default false,
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logd.size 64K instead of 256K.
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persist.logd.filter string Pruning filter to optimize content.
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At runtime use: logcat -P "<string>"
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ro.logd.filter string "~! ~1000/!" default for persist.logd.filter.
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This default means to prune the
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oldest entries of chattiest UID, and
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the chattiest PID of system
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(1000, or AID_SYSTEM).
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log.tag string persist The global logging level, VERBOSE,
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DEBUG, INFO, WARN, ERROR, ASSERT or
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SILENT. Only the first character is
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the key character.
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persist.log.tag string build default for log.tag
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log.tag.<tag> string persist The <tag> specific logging level.
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persist.log.tag.<tag> string build default for log.tag.<tag>
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logd.buffer_type string (empty) Set the log buffer type. Current choices are 'simple',
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'chatty', or 'serialized'. Defaults to 'chatty' if empty.
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NB:
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- auto - managed by /init
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- svelte - see ro.config.low_ram for details.
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- svelte+ - If empty, default to true if `ro.config.low_ram == false && ro.debuggable == true`
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- ro - <base property> temporary override, ro.<base property> platform default.
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- persist - <base property> override, persist.<base property> platform default.
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- build - VERBOSE for native, DEBUG for jvm isLoggable, or developer option.
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- number - support multipliers (K or M) for convenience. Range is limited
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to between 64K and 256M for log buffer sizes. Individual log buffer ids
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such as main, system, ... override global default.
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- Pruning filter rules are specified as UID, UID/PID or /PID. A '~' prefix indicates that elements
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matching the rule should be pruned with higher priority otherwise they're pruned with lower
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priority. All other pruning activity is oldest first. Special case ~! represents an automatic
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pruning for the noisiest UID as determined by the current statistics. Special case ~1000/!
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represents pruning of the worst PID within AID_SYSTEM when AID_SYSTEM is the noisiest UID.
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