Commit graph

9 commits

Author SHA1 Message Date
Ting-Yuan Huang
106c3e6189 liblog: fix a memory leak in __android_log_pmsg_file_write()
Free the strdup()-ed filename before returning error.

Test: passed clang-tidy checks
Bug: none
Change-Id: I555492cb4e50400db758f7c721647a8747874a01
2017-02-07 15:53:32 -08:00
Mark Salyzyn
cfd5b080af system/core: preparation to pull back interfaces from android/log.h
Point to log/log.h where necessary, define LOG_TAG where necessary.
Accept that private/android_logger.h is suitable replacement for
log/logger.h and android/log.h.

Correct liblog/README

Effectively a cleanup and controlled select revert of
'system/core: drop or replace log/logger.h' and
'system/core: Replace log/log.h with android/log.h'.

Test: compile
Bug: 30465923
Change-Id: Ic2ad157bad6f5efe2c6af293a73bb753300b17a2
2016-10-20 08:11:39 -07:00
Mark Salyzyn
db8a266aea liblog: __android_log_pmsg_file_write() cleanup
__android_log_pmsg_file_write() will open /dev/pmsg0 if not
already, and will close it if we opened it.

Added atomic access to the android_log_context as insurance.

Fortify and correct pmsg tests.

Test: gTest liblog-unit-tests --gtest_filter=liblog.__android_log_pmsg_file_*
Bug: 31958686
Change-Id: I2cf6f971b6968938f471fda67367efe20dae3004
2016-10-13 21:43:42 +00:00
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
ec4f5c776d liblog: reset pid and uid cache after a vfork()
Bionic getuid() and getpid() calls cache to reduce the need to
perform a syscall, and also reset their own cache after a vfork().
No more need for liblog to be performing this flawed cache operation.

Bug: 30085794
Change-Id: I70feed8bff0ddd919c2885a348ba67b14ddc0e0d
2016-07-14 07:34:53 -07:00
Mark Salyzyn
78786da116 liblog: O_CLOEXEC flag on opens
Bug: 28455828
Change-Id: Ic00101a6192aab7271cb0c3461e249a77d7f29ed
2016-04-29 07:52:36 -07:00
Mark Salyzyn
7ef5249afa liblog: suppress pmsg on user builds
- add optimized & cached LIBLOG_HIDDEN __android_log_is_debuggable()
- check when writing, either LOG_ID_SECURITY, SafetyNet or
  debuggable when pushing content to the pmsg buffer.

Bug: 27566046
Change-Id: I85f1b55ec329b38e00f4183836b6ed53046c323d
2016-03-29 13:52:21 -07:00
Mark Salyzyn
d4b061bde2 liblog: add __android_log_pmsg_file_write
- This is considered an Android Private function, not exported
  for general use.
- goal is to record a file's content into a series of log
  messages into pmsg, to be retrieved after a reboot for
  transfer to a persistent location.
- filename reference is converted to a tag-unique
  "<dirbase>:<filebase>".
- buffer and length representing the filename contents are
  recorded, along with a sequence number placed into the nsec
  time field to ANDROID_LOG_PMSG_FILE_MAX_SEQUENCE.
- Add a gTest for this function.

Bug: 27176738
Change-Id: If93df3ae8bfc1bb75516d4a1fd8dae0301af644b
2016-03-22 13:03:36 -07:00
Mark Salyzyn
018a96d03f liblog: split out transports into separate files
Create config_logger, logger and logger_read to house the log
interfaces. Add fake_logger, logd_logger and pmsg_logger to
house the write and read transports. Allows for an easier and
direct path to add new transports to the library.

SideEffects: None, logger benchmark performance unaffected

Bug: 27176738
Bug: 27405083
Change-Id: I01b38637334a5242905c8c89f6ab0a92e2540008
2016-03-22 13:01:15 -07:00