Commit graph

13 commits

Author SHA1 Message Date
Mark Salyzyn
aeaaf81c2c liblog: logd: logcat: Split out log/logger.h into public and private.
log/logger.h pieces moved into log/log.h.  Correct for some
minor Android Coding standards.

Test: gTests liblog-unit-tests, logd-unit-tests and logcat-unit-tests
Bug: 19235719
Bug: 26552300
Bug: 31289077
Bug: 31456426
Change-Id: I0a19fd8788eec20a582e72e4c62c04534bdb1b9a
2016-10-24 11:12:49 -07:00
Mark Salyzyn
37c9451349 system/core: drop or replace log/logger.h
debuggerd does not require log/logger.h, can use android/log.h
In some cases, mark why log/logger.h was required.

Test: Compile and boot smoke test
Bug: 26552300
Bug: 31289077
Bug: 31456426
Change-Id: Ia34987e25a01d81971ec8d785415f732b8376c4f
2016-10-04 09:09:10 -07:00
Mark Salyzyn
807e40ecc9 liblog: logd: Add android_lookupEventTag_len()
Allows us to mitigate the impact of MAP_PRIVATE and copy on write by
calling android_lookupEventTag_len instead of android_lookupEventTag,
and delaying the copy on write impact to the later.  We return a
string length in a supplied location along with the string pointer
with android_lookupEventTag_len(const EventTagMap* map, size_t* len,
int tag).  The string is not guaranteed to be nul terminated.  Since
android_lookupEventTag() called even once can cause the memory
impact, we will mark it as deprecated, but we currently have no
timeframe for removal since this is a very old interface.

Add an API for __android_log_is_loggable_len() that accepts the non
null terminated content and fixup callers that would gain because the
length is known prior to the call either in the compiler or at
runtime.  Tackle transition to android_lookupEventTag_len() and
fixup callers.

On any application that performs logging (eg: com.android.phone)

/proc/<pid>/smaps before:

xxxxxxxxxx-xxxxxxxxxx rw-p 00000000 fd:00 463 /system/etc/event-log-tags
Size:                 20 kB
Rss:                  20 kB
Pss:                   1 kB
Shared_Clean:          0 kB
Shared_Dirty:         20 kB
Private_Clean:         0 kB
Private_Dirty:         0 kB
Referenced:            0 kB
Anonymous:            20 kB
AnonHugePages:         0 kB
Swap:                  0 kB
SwapPss:               0 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Locked:                0 kB
VmFlags: rd wr mr mw me ac

/proc/<pid>/smaps after:

xxxxxxxxxx-xxxxxxxxxx rw-p 00000000 fd:00 1773 /system/etc/event-log-tags
Size:                 20 kB
Rss:                  20 kB
Pss:                   1 kB
Shared_Clean:         20 kB  (was 0kB)
Shared_Dirty:          0 kB  (was 20kB)
Private_Clean:         0 kB
Private_Dirty:         0 kB
Referenced:           20 kB  (was 0kB)
Anonymous:             0 kB  (was 20kB)
AnonHugePages:         0 kB
Swap:                  0 kB
SwapPss:               0 kB
KernelPageSize:        4 kB
MMUPageSize:           4 kB
Locked:                0 kB
VmFlags: rd wr mr mw me ac

Added liblog-unit-tests --gtest_filter=liblog.event_log_tags to
check for Shared_Clean: to not be 0 and Anonymous: to be 0 for
all processes referencing event-log-tags.  Which can include multiple
references to /system/etc/event-log-tags and future possible refs to
/data/misc/logd/event-log-tags and /dev/event-log-tags.  We want
failure messages to help point to errant code using the deprecated
interface.

This change saves 1/4MB of memory or more on a typical system.

Test: gTest liblog-unit-tests
Bug: 31456426
Change-Id: I9e08e44d9092bd96fe704b5709242e7195281d33
2016-10-03 11:08:34 -07:00
Mark Salyzyn
ff2dcd9af9 system/core Replace log/log.h with android/log.h
Should use android/log.h instead of log/log.h as a good example
to all others.  Adjust header order to comply with Android Coding
standards.

Test: Compile
Bug: 26552300
Bug: 31289077
Change-Id: I33a8fb4e754d2dc4754d335660c450e0a67190fc
2016-09-30 12:47:05 -07:00
Mark Salyzyn
6584d0a35a liblog: Replace log/log.h with android/log.h
Move all liblog related content into android/log.h, and make
log/log.h points to android/log.h.

Test: Compile
Bug: 26552300
Bug: 31289077
Change-Id: I858e0ebe047b86f2a8530a99bc9c380d3d58edbb
2016-09-30 12:47:05 -07:00
Mark Salyzyn
9cfd1c6ebc logcat: format verbs and adverbs
Bug: 29916087
Change-Id: I039c95b9dc0aa88f1219121513899934381453ae
2016-07-06 11:16:07 -07:00
Mark Salyzyn
90e7af30a5 liblog: logprint add uid format modifier
Bug: 25996918
Change-Id: Idff5e080fc5c7b69e0c45d3f596eb9d632451cbd
2015-12-09 08:12:07 -08:00
Mark Salyzyn
4cbed02e44 liblog: logcat: add epoch and monotonic format modifiers
- '-v epoch' prints seconds since Jan 1 1970
- '-v monotonic' print cpu seconds since start of device
- '-T sssss.mmm...' as alternate tail time format

NB: monotonic is a best estimate and may be out by a few ms
    given the synchronization source clue accuracy.

Bug: 23668800
Change-Id: Ieb924b6d3817669c7e53beb9c970fb626eaad460
2015-10-29 14:23:42 -07:00
Mark Salyzyn
f28f6a9ba2 liblog: logcat: Add year and zone to date on each line
- '-v year' modifier adds the four digit year prefix
- '-v <timezone>' modifier sets and prints the timezone suffix
- Only promise in logcat to support UTC as a timezone since
  all others are based on the configured environment
- '-v zone' modifier toggles the timezone suffix on or off
- '-T YYYY-MM-DD HH:MM:SS.mmm...' format is added

Bug: 23668700
Change-Id: I7521c1efb7455dc9a25434fce72a69a65dcf72ea
2015-09-24 14:49:55 -07:00
Mark Salyzyn
b932b2f8ba liblog: logcat: Add printable format modifier
- added printable format modifier:
  logcat -v printable
- opencoded borrowed individual utf8 validity checking algorithm
  from utf8_length() in libutils/Unicode.cpp
- if considered basic one-character ASCII, use popular \x escape
  sequences for non-printable
- logprint convert to C comments to drop mixed-mode

Bug: 19000361
Change-Id: I122a5b8fb41216fc0bc816178c0b768f3df56586
2015-06-04 08:27:29 -07:00
Mark Salyzyn
e1f2004ecc logcat: liblog: Add "usec" format argument
- Add additional 3 digits of time precision for time output
  adding in the reporting of usec
- Remove trailing space in header file

Change-Id: Ifb560850b8e01080e126fbaeab640db71cce3eea
2015-05-12 15:51:46 -07:00
Pierre Zurek
ead88fca6e liblog: logcat: colored output.
This patch adds a new '-v color' option to logcat so that the output is
colored similar to the ones in DDMS. Simply type "adb logcat -v color"
to use it. Works well with bash in gnome-terminal. NO GUARANTEE IT WILL
WORK ON A NON xterm STYLE TERMINAL.

Signed-off-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Change-Id: I9189c5f27fed991579edbcbc6834536eb8112152
2014-09-11 19:04:17 -07:00
Colin Cross
9227bd3855 Move liblog headers to system/core/include/log
Move the liblog headers to log/ instead of cutils/ to complete
the separation of libcutils and liblog.  cutils/log.h still
exists and includes log/log.h in order to support the many existing
modules that use cutils/log.h.

Change-Id: I2758c9f4aedcb809ca7ba8383d0f55041dd44345
2013-07-24 12:32:39 -07:00
Renamed from include/cutils/logprint.h (Browse further)