Commit graph

644 commits

Author SHA1 Message Date
Hans Boehm
2a019ecf4f Revert^2 "Prepare to fail in RefBase destructor if count is untouched"
This reverts commit b9d0753d2b.

Reason for revert: Re-land with MacOS workaround.

Test: Build (on Linux) and boot AOSP, with weak symbols enabled and disabled.

Change-Id: I5150cd90367178f3b039761dca3bccc9c2987df1
2018-08-08 16:30:12 -07:00
Xin Li
5d707816ac Merge "Merge Android Pie into master" 2018-08-07 16:51:24 +00:00
Hans Boehm
b9d0753d2b Revert "Prepare to fail in RefBase destructor if count is untouched"
This reverts commit 9d3146af22.

Reason for revert: It appears that weak symbols don't work as expected on MacOS, breaking the MacOS aapt build.

Change-Id: Ica0955106485a7bf2e2c3f09ff7910e230eb4139
2018-08-07 05:35:12 +00:00
Hans Boehm
b708511f78 Merge "Prepare to fail in RefBase destructor if count is untouched"
am: f502182ac6

Change-Id: I91ff7140a9a72c910ef01a2e13f277fa36c82b50
2018-08-06 11:01:28 -07:00
Hans Boehm
9d3146af22 Prepare to fail in RefBase destructor if count is untouched
Move towards crashing if a normally configured RefBase object is
destroyed without ever incrementing the reference count. We've been
threatening to do this for a long time. The previously last known
violation had been fixed.

This also fixes stack trace printing from RefBase, which had previously
been broken, and which we found necessary to track down further
violations of this rule.

Unfortunately, we found several more violations with the aid of
that fix. After existing CLs are submitted, there are
still some failures, but they are no longer numerous. Thus this CL
doesn't actually crash in the event of a violation, but does log a
verbose stack trace if it encounters one.

Bugs have been filed against the remaining known RefBase client offenders.
We plan to enable crashing on usage violations once those are fixed.

The fix for the stack trace printing breakage unfortunately requires
the use of weak symbols in order to avoid a circular build dependency.
We expect to eventually replace this with execinfo.h functionality.

Some random reformatting, driven by consistency with current formatting
requirements.

Add missing include to BacktraceMap.h.

Bug: 79112958
Bug: 30292291
Test: Boot AOSP, Master
Change-Id: I8151c54560c3b6f75ffc4c48229f0388a2066958
2018-08-03 17:56:47 -07:00
Josh Gao
9404f2da14 Merge changes from topic "looper_unique_fd"
am: 7e7cefa2c7

Change-Id: Id920135cff272f593b71ef8cb7ff41ee16de4484
2018-07-23 14:36:43 -07:00
Josh Gao
2d08ae57d4 libutils: switch Looper's fds to unique_fd.
Switch Looper to using unique_fd for its owned file descriptors, to
benefit from fdsan.

Bug: http://b/111560345
Test: treehugger
Change-Id: I8efff7741ed19fd71f82f7e604b4f1c66fc5ea2b
2018-07-18 18:12:12 -07:00
Yi Kong
2a6a58a818 Merge "[libutils] Modernize codebase by replacing NULL with nullptr"
am: ab3203f383

Change-Id: I5c2aaaea705a3ab82a5ad999f813e4cc22e63401
2018-07-17 10:06:10 -07:00
Yi Kong
e1731a4f2e [libutils] Modernize codebase by replacing NULL with nullptr
Fixes -Wzero-as-null-pointer-constant warning.

Test: m
Bug: 68236239
Change-Id: I5e89ec8c42151875439d2656475a8739ab9cb7dc
2018-07-16 18:11:34 -07:00
Yi Kong
0f45e589ef Merge "Modernize codebase by replacing NULL with nullptr"
am: 9154fbc8df

Change-Id: I439ffa4df2e5672ed2b66d88abbb61ed67355926
2018-07-13 21:38:41 -07:00
Yi Kong
c1a1562548 Modernize codebase by replacing NULL with nullptr
Fixes -Wzero-as-null-pointer-constant warning for binder.

Test: m
Bug: 68236239
Change-Id: I8184bd6aa4ebff1bd8c88dad16886e98df853b03
2018-07-13 15:28:59 -07:00
Jiyong Park
4ebda908de Shared libs are supported in recovery mode
am: 011ee12b1d

Change-Id: I867dbafecf11215b82d952c532774cdf12c6e782
2018-06-13 16:43:09 -07:00
Jiyong Park
011ee12b1d Shared libs are supported in recovery mode
adbd has been built as a static executable since the same binary was
copied to the recovery partition where shared library is not supported.
However, since we now support shared library in the recovery partition,
adbd is built as a dynamic executable.

In addition, the dependency from adbd to libdebuggerd_handler is removed
as debuggerd is handled by the dynamic linker.

A few more modules in /system/core are marked as recovery_available:
true as they are transitive dependencies of the dynamic linker.

This change also includes ld.config.recovery.txt which is the linker
config file for the recovery mode. It is installed to /etc/ld.config.txt
and contains linker namespace config for the dynamic binaries under
/sbin.

Bug: 63673171
Test: `adb reboot recovery; adb devices` shows the device ID
Test: Select 'mount /system' in the recovery mode, then `adb shell`.
$ lsof -p `pidof adbd` shows that libm.so, libc.so, etc. are loaded from
the /lib directory.

Change-Id: I363d5a787863f1677ee40afb5d5841321ddaae77
2018-06-10 08:32:24 +09:00
Jiyong Park
dfe433db47 Merge "Mark as recovery_available: true" am: 9f6f8bf0dc
am: d7fece5d91

Change-Id: Id59445da13aeef13784f04daebc8a96a7d506cbb
2018-05-21 22:32:36 -07:00
Jiyong Park
612210c75b Mark as recovery_available: true
Libraries that are direct or indirect dependencies of modules installed
to recovery partition (e.g. toybox) are marked as recovery_available:
true. This allows a recovery variant of the lib is created when it is
depended by other recovery or recovery_available modules.

Bug: 67916654
Bug: 64960723
Test: m -j
Change-Id: Ie59155c08890e96ce1893fa3687afcf763d7aea3
2018-05-15 09:47:04 +09:00
Pirama Arumuga Nainar
87013686ad Merge "Remove more semicolons at the end of namespaces" am: d652a9e231
am: b2206b0d43

Change-Id: Ie6da257aac75729e056918f4a5f2c9e339ff05ab
2018-04-12 09:36:44 -07:00
Pirama Arumuga Nainar
90affce0c8 Remove more semicolons at the end of namespaces
These warnings are triggered by -Wextra-semi (and not -Weverything, as
incorrectly mentioned in I49b6e6af483e011632e6a34c0663c93e5c385aa6).
This warning is added to Hidl-generated libs.

To appease clang-format, this patch also fixes some extra newlines.

Test: Build
Change-Id: I63cf5d8ecba46ad87876ff21848bfff04b12ec6e
2018-04-11 23:14:13 -07:00
Pirama Arumuga Nainar
2a8e2cd325 Merge "Remove extra semicolon at end of namespace" am: 1d2bf45b55
am: c309a0715f

Change-Id: I1a1b0c6c6837f2985bdccfd5b3f4d05a1feec006
2018-04-10 17:43:07 -07:00
Pirama Arumuga Nainar
eab48ce0d5 Remove extra semicolon at end of namespace
Upcoming clang update to r328903 adds a new warning:
  warning: extra ';' outside of a function is incompatible with C++98
  [-Wc++98-compat-extra-semi]

which is included in -Weverything.

We can just delete the extra semicolon (even though we use gnu99), and
save the extra byte.

Test: Build

Change-Id: I49b6e6af483e011632e6a34c0663c93e5c385aa6
2018-04-10 22:10:54 +00:00
Jiyong Park
d3c26ed8bc Merge "Revert "libutilscallstack is private VNDK-SP"" am: 7a72d07e40
am: bde587f715

Change-Id: If7634b1db99f068e77f73d8274f1f54efabde5d0
2018-03-15 01:59:22 +00:00
Jiyong Park
78df555af3 Revert "libutilscallstack is private VNDK-SP"
CallStack.cpp was part of libutils, but has been separated into a new
library libutilscallstack [1] and then made invisible to vendors [2].
However, this is causing problem to the vendors who have been using
the CallStack class from libutils, because the class is no longer
available to them.

In order to support them, marking libutilscallstack as
'vendor_available: true'.

This reverts commit a32678df55.

[1] https://android-review.googlesource.com/c/platform/system/core/+/591954
[2] https://android-review.googlesource.com/c/platform/system/core/+/599754
Bug: 74600214
Test: m -j
Test: 2016/2017 pixel devices boots to the UI and Photo Editing works

Merged-In: Iaa232ed978378b566a4710e2320ee6ed04572e14
Change-Id: Iaa232ed978378b566a4710e2320ee6ed04572e14
(cherry picked from commit 130fea3478)
2018-03-15 10:46:30 +09:00
Jiyong Park
130fea3478 Revert "libutilscallstack is private VNDK-SP"
CallStack.cpp was part of libutils, but has been separated into a new
library libutilscallstack [1] and then made invisible to vendors [2].
However, this is causing problem to the vendors who have been using
the CallStack class from libutils, because the class is no longer
available to them.

In order to support them, marking libutilscallstack as
'vendor_available: true'.

This reverts commit a32678df55.

[1] https://android-review.googlesource.com/c/platform/system/core/+/591954
[2] https://android-review.googlesource.com/c/platform/system/core/+/599754
Bug: 74600214
Test: m -j
Test: 2016/2017 pixel devices boots to the UI and Photo Editing works

Change-Id: Iaa232ed978378b566a4710e2320ee6ed04572e14
2018-03-14 16:21:00 +09:00
Steven Moreland
1549baa415 String16: remove integer overflows am: 0e5fbea01c
am: b02e0ab211

Change-Id: I618aaf491fb6309a3e313f4eeed62f68822f574d
2018-03-08 22:20:15 +00:00
Steven Moreland
b02e0ab211 String16: remove integer overflows
am: 0e5fbea01c

Change-Id: I60af627000e8c8d4ad44dfafcfdea772afad3838
2018-03-08 22:13:10 +00:00
Steven Moreland
d6c3476582 Merge "libutils: Remove Static.cpp and darwin hacks." am: 929112bcd1
am: 41a294981b

Change-Id: Iebe132eaca4f9034a8e011881f1514f864529fc5
2018-03-08 21:44:42 +00:00
Steven Moreland
241b93cfd3 libutils: Remove Static.cpp and darwin hacks.
Bug: N/A
Test: in internal master, the only libraries that reference this
  symbol are:
./prebuilts/sdk/tools/linux/bin/split-select android::gDarwinIsReallyAnnoying
./prebuilts/sdk/tools/linux/bin/aapt android::gDarwinIsReallyAnnoying
./prebuilts/sdk/tools/linux/bin/aapt2 android::gDarwinIsReallyAnnoying
./prebuilts/sdk/tools/linux/lib64/libaapt2_jni.so android::gDarwinIsReallyAnnoying
./prebuilts/sdk/tools/linux/lib64/libaapt2_jni.so android::gDarwinIsReallyAnnoying
+ VNDK libraries
Test: libutils_test

Change-Id: Id39e5ef6438e48fa225ba06dbb59902ca5b60f70
2018-03-06 17:44:08 +00:00
Steven Moreland
0e5fbea01c String16: remove integer overflows
Bug: 73826242
Test: manual
Change-Id: I32e13d61b944c1a527cf2d95473552d246e322be
2018-03-02 20:16:28 +00:00
Steven Moreland
977f72f9bc String16: remove integer overflows
Bug: 73826242
Test: manual
Change-Id: I32e13d61b944c1a527cf2d95473552d246e322be
2018-03-01 11:04:08 -08:00
Steven Moreland
9571234e22 libutils: remove subdirs
no longer used in Android

Test/Bug: none

Change-Id: I155d5ade02527bf47893a8bf8bcbb07b0aae53d8
2018-02-23 14:44:22 -08:00
Elliott Hughes
dc699a269f bpfmt.
Bug: N/A
Test: builds
Change-Id: I89ad00e1c4c7e0767bc80a7ac7935a4d55e090ac
2018-02-16 17:58:14 -08:00
Jiyong Park
a32678df55 libutilscallstack is private VNDK-SP
The library isn't intented to be exposed to vendors. It is a platform
private library.

Bug: 72471487
Test: Pixel 2016/2017 boots to the UI. Photo editing works.
Change-Id: Ib0479a43d66d988c2f882688240746bed3213dad
2018-01-25 14:02:08 +09:00
David Sehr
abfb9f3b99 Remove libziparchive dependency on libutils
Prevent future cyclic dependency from libunwind changes.

Bug: 66919073
Test: make -j 50
Change-Id: I2a4fa5b7c2c3a82db2073d0fa51940da6603be1f
2018-01-18 09:23:53 -08:00
Treehugger Robot
51c2088f3b Merge "Usage suggestions." 2017-12-19 20:32:29 +00:00
Steven Moreland
b8f152d3e2 Usage suggestions.
Providing alternative suggestions for using C++ stdlib types
instead of libutils types:
- higher interoperability
- fewer "legacy" quirks
- ability to use stl algorithms
- high optimization levels

Test: none
Change-Id: If81aa9982ca0ad229fa13c8142387906981b054d
2017-12-19 01:16:00 +00:00
Steven Moreland
8edb49060a Remove CompileTimeIfElse.
- not used anywhere
- equivalent to std::conditional

Test: none
Bug: none
Change-Id: Iffc00acb899d5159359d60c09443c7d2d7fdf2a0
2017-12-18 15:52:50 -08:00
Elliott Hughes
3289b9c928 Merge "Add OWNERS." 2017-12-07 23:21:26 +00:00
Elliott Hughes
693d63f9cf Add OWNERS.
Bug: N/A
Test: N/A
Change-Id: Ie785058c0f5eb9b4086c98ccba6e63e3ed411b65
2017-12-07 13:30:03 -08:00
Dan Willemsen
829ecaa808 Merge "Fix / suppress new unused warnings for mingw+clang"
am: f106bb6bb8

Change-Id: I4e4ac1ff248bd437dd721cac8d55b4925e7af5a8
2017-11-30 22:43:14 +00:00
Dan Willemsen
f106bb6bb8 Merge "Fix / suppress new unused warnings for mingw+clang" 2017-11-30 22:31:54 +00:00
Dan Willemsen
528f144e77 Fix / suppress new unused warnings for mingw+clang
Bug: 69933068
Test: mmma system/core
Change-Id: I089166a979d3d8c5ada38a7745d507b555048499
2017-11-29 21:37:28 -08:00
Logan Chien
d38831e107 Merge "libutils: Cleanup unused class declaration"
am: 23cc38d440

Change-Id: I93c1e2f9fc1d2c5ee6b1a6310952a4f7824b88a4
2017-11-28 02:22:03 +00:00
Logan Chien
20f7dc7041 libutils: Cleanup unused class declaration
This commit removes unused class declaration for SharedBuffer and
TextOutput.  SharedBuffer has become internal implementation details
since 282efae9c.  TextOutput usages have been removed since 9eb2a3b1.

Test: AOSP and master build w/o problems
Change-Id: I1871c4919a46f1ea8f41fb7eb79b4dc800b6f6f4
2017-11-22 18:31:10 +08:00
Xin Li
23e27db576 Merge commit 'a63ccea6abc7ea02e2d98e41c80793ca97237bd3' from
oc-mr1-dev-plus-aosp into stage-aosp-master

Change-Id: Ia33311cd1fd26dfaea59a69317b306fb91203c40
Merged-In: I03d06b10807e8a313c9654c2e1db36bfb59e3f99
2017-11-14 13:19:45 -08:00
Chih-Hung Hsieh
122352d983 Use -Werror in system/core
* Move -Wall -Werror from cppflags to cflags.
* Fix/suppress warning on unused variables.

Bug: 66996870
Test: build with WITH_TIDY=1
Change-Id: I1e05e96a1d0bcb2ccef1ce456504b3af57167cc5
2017-11-01 11:32:55 -07:00
Treehugger Robot
b128c78aef Merge "libutils: Fix bug in strstr16." 2017-10-24 20:20:00 +00:00
Branislav Rankov
bf3fff1a9e libutils: Fix bug in strstr16.
In the original code when target is an empty string
strlen16() would start reading the memory until a
"terminating null" (that is, zero) character is found.
This may happen because "*target++", at line 300,
would increment the pointer beyond the actual string.

Signed-off-by: Branislav Rankov <branislav.rankov@arm.com>
Signed-off-by: Tamas Petz <tamas.petz@arm.com>
Test: libutils_tests --gtest_filter=UnicodeTest.strstr16*
Change-Id: I213ffe061057c7fa8f34b68881e106a709557dcd
2017-10-24 10:36:00 -07:00
Dan Willemsen
abb3521abe Merge "Use target.linux for all linux kernel based targets" am: ab62265fa1
am: f973417005

Change-Id: I6bba9b0849075fe0703032d2c8f258b5ea86547f
2017-10-18 22:56:19 +00:00
Dan Willemsen
f973417005 Merge "Use target.linux for all linux kernel based targets"
am: ab62265fa1

Change-Id: I11e4bd0dae56c350a9839f95b1e85bf30490701d
2017-10-18 22:50:48 +00:00
Steven Moreland
0567c0e386 Add vendor_available to liblog_headers.
Renamed NDK headers to "liblog_ndk_headers"
(these names aren't used anywhere).

libutils_headers now properly export liblog_headers.

Test: with BOARD_VNDK_VERSION=current
Merged-In: I3a85385f588b84393c57fd6d1bcac620f708f0f1
Change-Id: I3a85385f588b84393c57fd6d1bcac620f708f0f1
(cherry picked from commit 42b485cc53)
2017-10-17 08:02:20 +00:00
Steven Moreland
c956b182e5 libutils: liblog export headers
- make liblog dependency for all library builds (this is required
    for files like String8.cpp)
- export liblog headers (because they are used in many header files).

Test: less libraries fail with BOARD_VNDK_VERSION := current
Merged-In: Iecb9cd00deb3a9056ea63c4a087afdb80a51a2b8
Change-Id: Iecb9cd00deb3a9056ea63c4a087afdb80a51a2b8
(cherry picked from commit 43e20cac7b)
2017-10-17 08:01:48 +00:00
Dan Willemsen
bdddcab3bd Use target.linux for all linux kernel based targets
Now in Android.bp files, target.linux applies to all targets running a
linux kernel (android, linux_glibc, linux_bionic). So common
flags/sources/etc can be combined instead of copying them to each
target.

Test: m
Change-Id: If7ad138ea1c540c160731f86b6ccc0daa5c69b83
2017-10-16 20:55:39 -07:00
Steven Moreland
95d7cbb77a Add vendor_available to liblog_headers.
Renamed NDK headers to "liblog_ndk_headers"
(these names aren't used anywhere).

libutils_headers now properly export liblog_headers.

Test: with BOARD_VNDK_VERSION=current
Merged-In: I3a85385f588b84393c57fd6d1bcac620f708f0f1
Change-Id: I3a85385f588b84393c57fd6d1bcac620f708f0f1
(cherry picked from commit 42b485cc53)
2017-10-17 12:09:50 +09:00
Steven Moreland
1f64241e2d libutils: liblog export headers
- make liblog dependency for all library builds (this is required
    for files like String8.cpp)
- export liblog headers (because they are used in many header files).

Test: less libraries fail with BOARD_VNDK_VERSION := current
Merged-In: Iecb9cd00deb3a9056ea63c4a087afdb80a51a2b8
Change-Id: Iecb9cd00deb3a9056ea63c4a087afdb80a51a2b8
(cherry picked from commit 43e20cac7b)
2017-10-17 12:08:33 +09:00
Dan Willemsen
60a410d606 Merge changes from topic "linux_glibc" am: 7b3d4da91a
am: 348a082469

Change-Id: Ia203b8b7bf807385b90232fedf91cef80f040279
2017-10-03 03:19:45 +00:00
Dan Willemsen
348a082469 Merge changes from topic "linux_glibc"
am: 7b3d4da91a

Change-Id: I1cb69992882db5a265234ac808d408f1f136f0e5
2017-10-03 03:03:52 +00:00
Dan Willemsen
7b3d4da91a Merge changes from topic "linux_glibc"
* changes:
  Rename target.linux[_x86[_64]] to target.linux_glibc[_x86[_64]]
  Move host flags from linux -> host
2017-10-03 02:30:06 +00:00
George Burgess IV
84b998f437 Merge "Silence a use-after-free warning from the analyzer" am: 8c853c43cc
am: 584853bdb0

Change-Id: I355b80ad7e59daeba569e6f9bb8eea853121acf9
2017-10-02 22:42:19 +00:00
George Burgess IV
584853bdb0 Merge "Silence a use-after-free warning from the analyzer"
am: 8c853c43cc

Change-Id: I053089d33c2e46da12c6e8d72252fd73bea0debf
2017-10-02 22:40:42 +00:00
George Burgess IV
6753bc4433 Silence a use-after-free warning from the analyzer
The analyzer is known to be very conservative in the face of atomic
operations (e.g. https://bugs.llvm.org/show_bug.cgi?id=34365); this case
is no different.

It's concerned that `delete this;` might read a different value for
`flags`, and proceed to delete `refs`. Since there are many comments
explaining why this won't happen (and it all looks sane to me), use a
NOLINT to silence this warning.

Analyzer warning:
system/core/libutils/RefBase.cpp:445:5: warning: Use of memory after it
is freed

Bug: 27101951
Test: mma. Use-after-free warning is gone.
Change-Id: Ic1623971bd1bad546fbb12a79439116c89a6762d
2017-10-02 19:50:39 +00:00
Dan Willemsen
4852933707 Rename target.linux[_x86[_64]] to target.linux_glibc[_x86[_64]]
In the future, target.linux will apply to all targets running a linux kernel
(android, linux_glibc, linux_bionic). So move all current users to the specific
linux_glibc.

There will be another cleanup pass later that will move some instances back to
target.linux if the properties should be shared with target.android and
target.linux_bionic, but target.linux needs to be removed first.

Test: out/soong/build.ninja identical before/after
Change-Id: I72ef34689c60ce547cab2898e354b027e335f6a1
Exempt-From-Owner-Approval: build system cleanup
2017-10-02 10:44:29 -07:00
Dan Willemsen
55181f7cdd Merge "Remove default libraries" am: 8b7feee38f
am: a0113de2f3

Change-Id: I1db625d1dcf0a7d55dedc9986d527d92412e5444
2017-09-30 23:34:31 +00:00
Dan Willemsen
a0113de2f3 Merge "Remove default libraries"
am: 8b7feee38f

Change-Id: Ic39ecabd37ffe06ba3a119410b5dcd4885fb584c
2017-09-30 23:32:45 +00:00
Dan Willemsen
1e45d533b3 Remove default libraries
libdl is part of system_shared_libs now. -ldl -lpthread -lm are now defaults
for host_ldlibs on Linux and Darwin. -lrt is a default for host_ldlibs on
Linux.

Test: m host
Change-Id: I0b3c147b00a8ab6ff289b85db55b88836c905f5c
Exempt-From-Owner-Approval: build system cleanup
2017-09-29 13:17:06 -07:00
Jeff Sharkey
a915e99e04 Merge "Add "operator bool" overload to android::sp." am: 28ebfe18fb
am: 56c22732c6

Change-Id: I0068bb0fee78b62abe97175b2594b579b6fc8f81
2017-09-13 23:14:06 +00:00
Jeff Sharkey
56c22732c6 Merge "Add "operator bool" overload to android::sp."
am: 28ebfe18fb

Change-Id: Idc8a68835c6a13ab92ffce44507360c2d8e6d9e5
2017-09-13 22:47:21 +00:00
Treehugger Robot
28ebfe18fb Merge "Add "operator bool" overload to android::sp." 2017-09-13 20:35:38 +00:00
Jeff Sharkey
147b881ca9 Add "operator bool" overload to android::sp.
This matches the overload on std::unique_ptr and friends.

Test: builds, boots
Bug: 13758960
Change-Id: Ieed9faa6b162c2a10fa7cf2b135c9b17564f6c88
2017-09-13 11:06:07 -06:00
Adam Vartanian
1ba748810e Fix integer overflow in utf{16,32}_to_utf8_length am: 47efc676c8
am: 6e2bf89dc7

Change-Id: I6b5786e20b0df1729453d21e05dbd926aabbf56d
2017-09-11 09:30:42 +00:00
Adam Vartanian
571cf65594 Fix integer overflow in utf{16,32}_to_utf8_length am: 47efc676c8
am: 6e2bf89dc7

Change-Id: I15b9e020b389066973dab623a22b1d6eda981d02
2017-09-11 09:30:41 +00:00
Adam Vartanian
6e2bf89dc7 Fix integer overflow in utf{16,32}_to_utf8_length
am: 47efc676c8

Change-Id: Id54a1e644fc02a2923c6bf165205d16e43cf5eb2
2017-09-11 09:26:42 +00:00
Adam Vartanian
47efc676c8 Fix integer overflow in utf{16,32}_to_utf8_length
Without an explicit check, the return value can wrap around and return
a value that is far too small to hold the data from the resulting
conversion.

No CTS test is provided because it would need to allocate at least
SSIZE_MAX / 2 bytes of UTF-16 data, which is unreasonable on 64-bit
devices.

Bug: 37723026
Test: run cts -p android.security
Change-Id: I56ba5e31657633b7f33685dd8839d4b3b998e586
2017-09-07 10:36:19 +01:00
Steven Moreland
25db8dc21b Add vendor_available to liblog_headers.
Renamed NDK headers to "liblog_ndk_headers"
(these names aren't used anywhere).

libutils_headers now properly export liblog_headers.

Test: with BOARD_VNDK_VERSION=current
Change-Id: I7b2d9e77e313e3f2ef362a19a03f4c23874d589a
Merged-In: I3a85385f588b84393c57fd6d1bcac620f708f0f1
2017-09-06 12:55:32 -07:00
Jiyong Park
e6474b7fa2 Don't rely on transitively included headers
One must explicitly include what it need.
time.h for clock_gettime

Bug: 37629934
Test: build
Merged-In: I992eac637f373b204aa161b0b26f5563e952c27e
Change-Id: I992eac637f373b204aa161b0b26f5563e952c27e
2017-09-06 15:30:32 +09:00
Jiyong Park
bab16584ce Don't rely on transitively included headers
One must explicitly include what it need.
time.h for clock_gettime

Bug: 37629934
Test: build
Change-Id: I992eac637f373b204aa161b0b26f5563e952c27e
2017-09-06 13:04:57 +09:00
Justin Yun
9ca92458e2 Mark the modules as VNDK-SP in Android.bp
As a VNDK-SP module, Android.bp must have 'vndk' tag as well as
'vendor_available: true'.

The 'vndk' tag for VNDK-SP formated as follows:
vndk: {
    enabled: true,
    support_system_process: true,
},

VNDK-SP modules will be installed both in system/lib(64) as normal
and in system/lib(64)/vndk-sp as a vendor variant.

Bug: 63866913
Test: build and boot with BOARD_VNDK_VERSION=current
Merged-In: I51fe0859f63ad58b7b91909e7d7d4206443228cd
Change-Id: I51fe0859f63ad58b7b91909e7d7d4206443228cd
(cherry picked from commit aeb68e86e4)
2017-08-23 17:56:13 +09:00
Steven Moreland
7170d5bf24 Merge "Remove TODOs for std::string removal."
am: ceb7814c86

Change-Id: Iab64291aec5edd44ebf8856fb2d24c6d0e779bed
2017-08-02 20:49:46 +00:00
Treehugger Robot
ceb7814c86 Merge "Remove TODOs for std::string removal." 2017-08-02 20:35:45 +00:00
Chih-Hung Hsieh
dfaa20c069 Merge "Fix misc-macro-parentheses warnings in system/core."
am: e4bd153e55

Change-Id: I6b38149a0fa15874eff68cbf7ee62e4acd41c595
2017-08-01 23:26:06 +00:00
Chih-Hung Hsieh
85244e8bc2 Fix misc-macro-parentheses warnings in system/core.
Add NOLINT comment to work around clang-tidy
error in checking macro arguments used in
type expressions.

Bug: 28705665
Test: make with WITH_TIDY=1 WITH_TIDY_CHECKS=-*,misc-macro-* \
      WITH_TIDY_FLAGS=-header-filter=system/core/.*

Change-Id: I7619978c1804e151a11a8b0477e80076bcf21cab
2017-08-01 22:12:57 +00:00
Steven Moreland
c8ddc2bad0 Remove TODOs for std::string removal.
This is baked into too many prebuilts. Perhaps
eventually it can be removed, but this is very
unlikely.

Change-Id: Ie3f0095a7b48c8b60e548cf2d32d2d95c108b5fb
Fixes: 35363681
2017-07-31 17:53:13 -07:00
Justin Yun
aeb68e86e4 Mark the modules as VNDK-SP in Android.bp
As a VNDK-SP module, Android.bp must have 'vndk' tag as well as
'vendor_available: true'.

The 'vndk' tag for VNDK-SP formated as follows:
vndk: {
    enabled: true,
    support_system_process: true,
},

VNDK-SP modules will be installed both in system/lib(64) as normal
and in system/lib(64)/vndk-sp as a vendor variant.

Bug: 63866913
Test: build and boot with BOARD_VNDK_VERSION=current
Change-Id: I51fe0859f63ad58b7b91909e7d7d4206443228cd
2017-07-31 23:37:32 +00:00
Lennart Wieboldt
f7b315c985 Merge "Remove LOCAL_CLANG and clang: true"
am: 80ec81cf4b

Change-Id: Ia7f79d8e25ee9870fe44d198568d0e5dabdff811
2017-07-25 22:28:56 +00:00
Treehugger Robot
80ec81cf4b Merge "Remove LOCAL_CLANG and clang: true" 2017-07-25 22:20:23 +00:00
Siarhei Vishniakou
f23f21a231 Merge "Add thread safety analysis annotations."
am: e7ce8c8485

Change-Id: I4963b623b6e5a190bfee1dcfec01fe009ba0e94f
2017-07-25 21:42:54 +00:00
Treehugger Robot
e7ce8c8485 Merge "Add thread safety analysis annotations." 2017-07-25 21:37:27 +00:00
Lennart Wieboldt
cd15fc7ba8 Remove LOCAL_CLANG and clang: true
clang is the default compiler since Android nougat

Test: mma & verified it´s still build with clang
Change-Id: I34adaeef2f6558a09f26027271222bad94780507
Signed-off-by: Lennart Wieboldt <lennart.1997@gmx.de>
2017-07-25 14:29:50 +02:00
Siarhei Vishniakou
4e5b69134b Add thread safety analysis annotations.
Enable thread safety analysis annotations for clang.
See https://clang.llvm.org/docs/ThreadSafetyAnalysis.html
for instructions on using these in the source code.

Bug: 28094863
Test: annotated
frameworks/native/services/inputflinger/InputDispatcher.cpp
and enabled '-Werror' and '-Wthread-safety' clang
compiler flags in Android.bp for inputflinger.
Observed compiler errors when accessing
instance attributes without holding a lock. Also added
a compile test Mutex_test.cpp, which can be build using
m libutils_tests and run using
/data/nativetest64/libutils_tests/libutils_tests

Change-Id: I24ce111241cc339901bc45dda8b446df5299af4a
2017-07-21 13:25:42 -07:00
Tom Cherry
d13547347f Merge "Remove ALOGD_IF_SLOW" 2017-07-18 17:20:39 +00:00
Tom Cherry
1baf95a9f9 Merge "Remove ALOGD_IF_SLOW" into stage-aosp-master am: 6665fd5991 am: fb61b61986
am: caf26d56c6

Change-Id: I0cf66d409e7837eee65e275a3709a92438ef1806
2017-07-17 19:36:46 +00:00
Tom Cherry
b648daaa40 Remove ALOGD_IF_SLOW
ALOGD_IF_SLOW isn't intuitively implemented as it cannot handle
temporaries used as its parameters.  Since there are so few users of
it already and since it's just sugar on top of 2 otherwise trivial
lines, we opt to remove it entirely.

Bug: 62820330
Test: Build

Change-Id: Ie91b40cdaf650154203ccf0ca70e029cc097b350
2017-07-14 19:51:57 +00:00
Steven Moreland
c30f248cd4 Add vendor_available to liblog_headers.
Renamed NDK headers to "liblog_ndk_headers"
(these names aren't used anywhere).

libutils_headers now properly export liblog_headers.

Test: with BOARD_VNDK_VERSION=current
Merged-In: I3a85385f588b84393c57fd6d1bcac620f708f0f1
Change-Id: I3a85385f588b84393c57fd6d1bcac620f708f0f1
2017-07-12 12:59:30 -07:00
Tom Cherry
08678e1f8b Remove ALOGD_IF_SLOW
ALOGD_IF_SLOW isn't intuitively implemented as it cannot handle
temporaries used as its parameters.  Since there are so few users of
it already and since it's just sugar on top of 2 otherwise trivial
lines, we opt to remove it entirely.

Bug: 62820330
Test: Build

Change-Id: Ie91b40cdaf650154203ccf0ca70e029cc097b350
Merged-In: Ie91b40cdaf650154203ccf0ca70e029cc097b350
2017-07-12 17:59:12 +00:00
Steven Moreland
42b485cc53 Add vendor_available to liblog_headers.
Renamed NDK headers to "liblog_ndk_headers"
(these names aren't used anywhere).

libutils_headers now properly export liblog_headers.

Test: with BOARD_VNDK_VERSION=current
Change-Id: I3a85385f588b84393c57fd6d1bcac620f708f0f1
2017-07-10 16:55:32 -07:00
Steven Moreland
58b3c79034 libutils: liblog export headers
- make liblog dependency for all library builds (this is required
    for files like String8.cpp)
- export liblog headers (because they are used in many header files).

Test: less libraries fail with BOARD_VNDK_VERSION := current
Merged-In: Iecb9cd00deb3a9056ea63c4a087afdb80a51a2b8
Change-Id: Iecb9cd00deb3a9056ea63c4a087afdb80a51a2b8
2017-07-06 22:57:08 +00:00
Steven Moreland
43e20cac7b libutils: liblog export headers
- make liblog dependency for all library builds (this is required
    for files like String8.cpp)
- export liblog headers (because they are used in many header files).

Test: less libraries fail with BOARD_VNDK_VERSION := current
Change-Id: Iecb9cd00deb3a9056ea63c4a087afdb80a51a2b8
2017-06-26 13:56:37 -07:00
Mikhail Lappo
df36644d68 Merge "Va_end should be used with va_start" am: 5f4808382e
am: 34b7617cb7

Change-Id: Ibc9fed36270da3f960179086792ce1187be31e92
2017-06-14 23:11:05 +00:00
Treehugger Robot
5f4808382e Merge "Va_end should be used with va_start" 2017-06-14 23:00:42 +00:00
Jiyong Park
94baf7270a Merge "fix: ATRACE does not work for libs loaded in sphal namespace" into oc-dev
am: b560e6db6a

Change-Id: I3c81f72c2d5f1eb30401012b92a1a3b65cbfdb80
2017-05-31 00:36:15 +00:00
Jiyong Park
0b3c24bd4f fix: ATRACE does not work for libs loaded in sphal namespace
From O, libutils.so is loaded twice. Once in the default namespace and
once in the sphal namespace for vendor libs. However, since the
framework only communicates with the instance loaded in the default
namespace, report_sysprop_change() event is not notified to the instance
in sphal namespace. This causes ATRACE to not work for vendor libs
loaded in sphal namespace.

So, the instance loaded in default namespace now explicitly redirects
the event to the other instance.

Bug: 62084107
Test: start an app, run 'adb shell atrace gfx --stream'. atrace from the
graphics driver are visible.

Change-Id: Ia6c2ca6bcb9a8849ebb09b5c38d60480c92d4571
2017-05-27 15:32:01 +09:00
Renaud Paquay
1033781b10 Merge "Fix uninitialized member variable" am: 46bb1ffa8a am: 9cf71d784e
am: c134530c37

Change-Id: I6f95919b2f3975754e8937aaa0c956feb79cc3e1
2017-05-12 01:55:47 +00:00
Renaud Paquay
b7a4f0b9e2 Fix uninitialized member variable
The default constructor of FileMap was missing an initializer for the
mFileMapping variables. This results in CloseHandle being called with
a "random" value, which can cause havoc in Win32 process over time (e.g.
in the case of libaapt2_jni.dll, which is loaded in a JVM process).

Also, update the code to use "NULL" for invalid file map handle
and "INVALID_HANDLE_VALUE" for invalid file handle.

Bug: 38197857
Test: Stress testing on (Windows) machine
Change-Id: Ibd769219d601fbafcfcee89e848b31cc5137826c
2017-05-11 10:30:52 -07:00
Chris Forbes
efa6100129 Merge "libutils: Make LightFlattenablePod safe for unaligned ptr" into oc-dev
am: ba73a138e0

Change-Id: I4a3e0d4a84465e35109c27032ad92e4577240a74
2017-05-04 20:31:36 +00:00
Chris Forbes
c46cbcbbf9 libutils: Make LightFlattenablePod safe for unaligned ptr
`buffer` may not be correctly aligned here. Assignment assumes correct
alignment and so then blows up on arm32.

Bug: b/37920153
Test: build, boot device
Change-Id: I23ef7c7f1d1511fd912b9485bba955db59e33832
2017-05-04 10:18:26 -07:00
Jaesoo Lee
1e00517d71 resolve merge conflicts of afc0aa78f to oc-dev-plus-aosp
Test: I solemnly swear I tested this conflict resolution.
Change-Id: I0e1cc5f5367c4840eea5f56670f74a44743f1853
2017-04-28 10:52:15 +09:00
Treehugger Robot
98cc0e1f02 Merge "added include for unistd.h that was missing" 2017-04-28 01:39:55 +00:00
Jaesoo Lee
1e8ac0fd03 libutils_headers: export libcutils_headers
These headers are used in headers in libutils_headers and must be
re-exported.

include/utils/Atomic.h:20:#include <cutils/atomic.h>
include/utils/Trace.h:24:#include <cutils/trace.h>
include/utils/Singleton.h:27:#include <cutils/compiler.h>

Test: modules using libutils_headers don't have to have
libcutils_headers include dirs set.
Bug: 33241851

Change-Id: I039aaaad93bf0944d42f04d2a9e6654b4f867042
2017-04-28 09:42:50 +09:00
Steven Moreland
4ad9d5155b libutils: export libbacktrace headers
This is used in CallStack.h.

Test: m -j libutils
Test: links
Test: trying to compile with BOARD_VNDK_VERSION := current
Bug: 33241851
Change-Id: I076c9551d356824d6e69b82349b890369bc7eea3
Merged-In: If7258e7b38000a72fd520f725030fb0038f90167
2017-04-28 09:42:50 +09:00
Steven Moreland
2d0dc9966a libutils: export system_headers
vendor + vendor_available modules built with BOARD_VNDK_VERSION :=
current aren't allowed to use global headers. Since libutils uses
system headers itself, it should export them as well.

Bug: 33241851
Test: building with BOARD_VNDK_VERSION := current produces many fewer
errors.

Change-Id: Icc7d2beb2a17da291434c6282eb1b9eb458f114c
Merged-In: I950821f1dae3ddc110db50869247913d5b1aa638
2017-04-28 09:42:50 +09:00
Jaesoo Lee
ff39e9c606 added include for unistd.h that was missing
Before BOARD_VNDK_VERSION is defined, unistd.h was included via
utils/Log.h and then log/log.h in liblog.
This error is detected because include for unistd.h is missing for
log/log.h for include_vndk in liblog

Bug: 33241851
Test: built libutils successfully
Change-Id: Icf14f8a9dee46752536a57f707c4d8895496fd72
Merged-In: Ide4aee3cacad2a2bf6bd0cbdf0254c6c245f4020
2017-04-24 15:02:43 +09:00
TreeHugger Robot
2679d09d48 Merge "libutils: include what you use" into oc-dev 2017-04-14 18:58:01 +00:00
Steven Moreland
8da9613b3f libutils: include what you use
These includes are included transitively by liblog, but not by the VNDK
version of liblog.

Bug: 33241851
Test: links with BOARD_VNDK_VERSION := current
Change-Id: Ide4aee3cacad2a2bf6bd0cbdf0254c6c245f4020
2017-04-14 17:06:33 +00:00
Steven Moreland
d3b4b2c96f libutils: export libbacktrace headers
This is used in CallStack.h.

Test: m -j libutils
Test: links
Test: trying to compile with BOARD_VNDK_VERSION := current
Bug: 33241851
Change-Id: If7258e7b38000a72fd520f725030fb0038f90167
2017-04-13 21:11:28 -07:00
Steven Moreland
b084bc3545 libutils: export system_headers
vendor + vendor_available modules built with BOARD_VNDK_VERSION :=
current aren't allowed to use global headers. Since libutils uses
system headers itself, it should export them as well.

Also added some items into windows-deprecated.h. This file is supposed
to be in sync with the libnativewindow variant until all dependencies on
it can be fixed. However, it is missing some updates. This matters when
including libsystem_headers adds system headers before libnativewindow
headers in the lookup paths.

Bug: 33241851
Test: building with BOARD_VNDK_VERSION := current produces many fewer
errors.

Change-Id: I950821f1dae3ddc110db50869247913d5b1aa638
2017-04-13 12:05:16 -07:00
Steven Moreland
91527edec8 libutils: mark as vendor_available
By setting vendor_available, the following may become true:

* a prebuilt library from this release may be used at runtime by
  in a later releasse (by vendor code compiled against this release).
  so this library shouldn't depend on runtime state that may change
  in the future.
* this library may be loaded twice into a single process (potentially
  an old version and a newer version). The symbols will be isolated
  using linker namespaces, but this may break assumptions about 1
  library in 1 process (your singletons will run twice).

Background:

This means that these modules may be built and installed twice --
once for the system partition and once for the vendor partition. The
system version will build just like today, and will be used by the
framework components on /system. The vendor version will build
against a reduced set of exports and libraries -- similar to, but
separate from, the NDK. This means that all your dependencies must
also mark vendor_available.

At runtime, /system binaries will load libraries from /system/lib*,
while /vendor binaries will load libraries from /vendor/lib*. There
are some exceptions in both directions -- bionic(libc,etc) and liblog
are always loaded from /system. And SP-HALs (OpenGL, etc) may load
/vendor code into /system processes, but the dependencies of those
libraries will load from /vendor until it reaches a library that's
always on /system. In the SP-HAL case, if both framework and vendor
libraries depend on a library of the same name, both versions will be
loaded, but they will be isolated from each other.

It's possible to compile differently -- reducing your source files,
exporting different include directories, etc. For details see:

https://android-review.googlesource.com/368372

None of this is enabled unless the device opts into the system/vendor
split with BOARD_VNDK_VERSION := current.

Bug: 36426473
Bug: 36079834
Test: m -j libutils
Test: attempt to compile with BOARD_VNDK_VERSION := current
Merged-In: I6c1279a74ef071851401e38bbdd377f13827694c
Change-Id: I6c1279a74ef071851401e38bbdd377f13827694c
2017-04-12 16:00:02 +00:00
Steven Moreland
48cdaff063 libutils: mark as vendor_available
By setting vendor_available, the following may become true:

* a prebuilt library from this release may be used at runtime by
  in a later releasse (by vendor code compiled against this release).
  so this library shouldn't depend on runtime state that may change
  in the future.
* this library may be loaded twice into a single process (potentially
  an old version and a newer version). The symbols will be isolated
  using linker namespaces, but this may break assumptions about 1
  library in 1 process (your singletons will run twice).

Background:

This means that these modules may be built and installed twice --
once for the system partition and once for the vendor partition. The
system version will build just like today, and will be used by the
framework components on /system. The vendor version will build
against a reduced set of exports and libraries -- similar to, but
separate from, the NDK. This means that all your dependencies must
also mark vendor_available.

At runtime, /system binaries will load libraries from /system/lib*,
while /vendor binaries will load libraries from /vendor/lib*. There
are some exceptions in both directions -- bionic(libc,etc) and liblog
are always loaded from /system. And SP-HALs (OpenGL, etc) may load
/vendor code into /system processes, but the dependencies of those
libraries will load from /vendor until it reaches a library that's
always on /system. In the SP-HAL case, if both framework and vendor
libraries depend on a library of the same name, both versions will be
loaded, but they will be isolated from each other.

It's possible to compile differently -- reducing your source files,
exporting different include directories, etc. For details see:

https://android-review.googlesource.com/368372

None of this is enabled unless the device opts into the system/vendor
split with BOARD_VNDK_VERSION := current.

Bug: 36426473
Bug: 36079834
Test: m -j libutils
Test: attempt to compile with BOARD_VNDK_VERSION := current
Change-Id: I6c1279a74ef071851401e38bbdd377f13827694c
2017-04-12 08:59:41 -07:00
Mathias Agopian
44cee05904 split LightRefBase out of RefBase
Bug: 36532900
Test: compiled
Change-Id: I3088e1a219e04cf924744d3a0c2d374918bb6395
2017-03-29 20:39:06 +00:00
Mark Salyzyn
02ce4262dc Merge changes I96998c4b,I161bf03b am: dd0cd8d88f am: f17500474a
am: 77a1fa9070

Change-Id: I5b296f6c1b01a8b2dc51c7ebbd44d599a3aa49c1
2017-03-27 22:42:44 +00:00
Mark Salyzyn
0484b3b575 logd: ASAN cleansing
A mixture of fixes and cleanup for LogKlog.cpp and friends.

- sscanf calls strlen.  Check if the string is missing a nul
  terminator, if it is, do not call sscanf.
- replace NULL with nullptr for stronger typechecking.
- pass by reference for simpler code.
- Use ssize_t where possible to check for negative values.
- fix FastCmp to add some validity checking since ASAN reports that
  callers are not making sure pre-conditions are met.
- add fasticmp templates for completeness.
- if the buffer is too small to contain a meaningful time, do not
  call down to log_time::strptime() because it does not limit its
  accesses to the buffer boundaries, instead stopping at a
  terminating nul or invalid match.
- move strnstr to LogUtils.h, drop size checking of needle and
  clearly report the list of needles used with android::strnstr
- replace 'sizeof(static const char[]) - 1' with strlen.

Test: gTest liblog-unit-test, logd-unit-tests & logcat-unit-tests
Bug: 30792935
Bug: 36536248
Bug: 35468874
Bug: 34949125
Bug: 34606909
Bug: 36075298
Bug: 36608728
Change-Id: I161bf03ba029050e809b31cceef03f729d318866
2017-03-27 13:32:57 -07:00
Vishwath Mohan
c94c4d269a Merge "Blacklist some vector functions for CFI." 2017-03-23 23:14:48 +00:00
Mikhail Lappo
90f5d64848 Va_end should be used with va_start
va_start is used and va_end should
be invoked accordingly

Change-Id: Id7037aa8092438b27e445e5147972836602bfd55
2017-03-23 22:41:42 +01:00
Vishwath Mohan
27a7aa0f59 Blacklist some vector functions for CFI.
This CL blacklists some vector functions (construct, copy, splat,
move) that use reinterpret_cast on freshly allocated memory (where the
object doesn't exist yet). This is technically correct, but not
friendly for CFI, which enforces stricter checking to catch type
confusion errors. Blacklisting these specific functions from CFI does
not cause an appreciable coverage loss though, so this should be fine.

Bug: 36219323
Test: Builds and boots, and the reinterpret error goes away on CFI builds.
Test: All 98 libutils_tests pass
Change-Id: I4944b179116bb1e1608d92697e95e182d8c0ac9f
2017-03-23 14:37:12 -07:00
Adam Lesinski
aa1d43230c Merge "libziparchive: fix mac os breakage" am: 390f3b364c am: 7cfe1d69b0
am: cdbadafb4a

Change-Id: Ie327879eaea542911603640e36f0d867e05afd61
2017-03-23 21:12:58 +00:00
Adam Lesinski
b02d690336 libziparchive: fix mac os breakage
Add ftruncate64 to utils/Compat.h definitions for mac.

Change-Id: I82cb46927be911e867b606f4f4429a5e1b1987f7
Test: builds on mac
2017-03-23 12:02:09 -07:00
Hans Boehm
d9bcc37269 Merge "Add heuristic data race detection to sp<>" am: 04abdc6153 am: 12d6afe6f1
am: 764d347183

Change-Id: I6a27520e80c2adefe30b0d04ce7e470188d3ad99
2017-03-19 04:56:09 +00:00
Hans Boehm
7f0b2601d3 Add heuristic data race detection to sp<>
Force assignment to read the old pointer value twice, and check
that it didn't change in the interim. Previous experience with
Skia suggests that this has a high probability of correctly detecting
a data race when it occurs, instead of potentially letting the
count associated with the old pointer value get decremented twice,
and corrupting the heap.

This does increase the size of sp assignments, which seem to
commonly get inlined. For the general case, we add a third
comparison and function call.

Some code reformatting to make this consistent with modern conventions
and pass automated checks.

Test: Booted aosp build. Ran libutils tests. Looked at generated code.

Bug: 31227650

Change-Id: Id93a05c6bf10f01ee15ff1bb409611f2058f988f
2017-03-17 17:47:28 -07:00
TreeHugger Robot
6258cfee90 Merge "Formatting changes for TypeHelpers.h and Vectors.h" 2017-03-16 07:38:32 +00:00
Vishwath Mohan
fc3f57acbb Formatting changes for TypeHelpers.h and Vectors.h
This CL nukes all spurious whitespace in the two files.

Bug: 36219323
Test: Device builds and boots.
Test: All 98 libutils_tests pass
Change-Id: I8054a0f0ba5df95f5115dc06597eb9fd539da942
2017-03-15 22:48:27 -07:00
Dan Willemsen
5dfa912f03 Merge "Enable more modules on linux_bionic builds" am: 75c414d1a3 am: 5bb9220b75
am: 5e30ce0ca0

Change-Id: I8d1ba8749e9c0e6433236b42bda7da5188e5f810
2017-03-16 02:40:00 +00:00
Dan Willemsen
e0cd1e043d Enable more modules on linux_bionic builds
Bug: 31559095
Test: Enable host bionic, run soong
Change-Id: Ib4ebd909322cf464b6a40040e4b60ece7d905b6f
2017-03-15 15:44:00 -07:00
Mathias Agopian
f520b73103 Get rid of LinearTransform
It had 3 clients
- one in vendor/google_athome which was disabled
- one in a device specific folder, which will die out
- and one in frameworks/base

This reverts commit 6c942304ed.

Test: compile/run
Bug: treble cleanup

Change-Id: Ia76009d550c294198c083cf89718bc498b5c9e3e
2017-03-15 14:16:13 -07:00
Ian Pedowitz
6c942304ed Revert "get rid of LinearTransform"
This reverts commit bcd592053a.

Bug: 36206160
Test:  Fugu compiles, didn't before the revert
Change-Id: Id80fd4ce9db3fce03b049cf81f938187c7ddb8b0
2017-03-14 08:11:41 +00:00
Mathias Agopian
bcd592053a get rid of LinearTransform
it had a single client in frameworks/base

Test: compile & run
Bug: treble cleanup
Change-Id: I9a17bbffed4724f8a329c5a15d621293bb800d45
2017-03-13 12:27:35 -07:00
Steven Moreland
aa47993b23 Merge "libutils: String\d+ make std_string private" am: 76850afa52 am: 2ebb1e5404
am: 4ba3f784ef

Change-Id: I14f003992db222ef285551c6d9a8ffe71620f70d
2017-03-11 09:07:23 +00:00
Steven Moreland
2aac335128 libutils: String\d+ make std_string private
This method is still used by prebuilts, but making it private to start
the process of removing it from everywhere.

Test: pass
Bug: 35363681
Change-Id: I4d53f68d10c9abcca32023c4d930e99912afa697
2017-03-10 22:51:55 -08:00
TreeHugger Robot
decccc2e8f Merge "Remove BlobCAche from libutils" 2017-03-11 01:32:47 +00:00
Mathias Agopian
f088e4e238 Remove BlobCAche from libutils
it has moved to libEGL which was the only client.


Test: compiled & Run
Bug: vndk-stable
Change-Id: Ife18727fa1c48b1be6910058867016348b7f02c1
2017-03-10 12:27:46 -08:00
Steven Moreland
d21cfab244 Add missing includes.
Includes are transitively imported by <string> in String8.h + String16.h
but that include is being removed.

Test: pass
Change-Id: Ide5c011b40b4a4f031dd26ead08b5c8d5d299693
2017-03-10 09:05:30 -08:00
Tom Cherry
101573e3f5 Merge "Clarify that Condition::wait() can spuriously wake up" am: 514e0aa2e2 am: 675e05c48a
am: df8fc09716

Change-Id: Id99d721415d93b2d3f0539bf5a2acb1995f01000
2017-03-06 20:06:03 +00:00
Tom Cherry
514e0aa2e2 Merge "Clarify that Condition::wait() can spuriously wake up" 2017-03-06 19:26:30 +00:00
Mathias Agopian
22dbf3947f clean-up libutils includes
moved Foo.h as first include of Foo.cpp, and
removed redundant includes.

Made NativeHandle non virtual.


Test: run & compile
Bug: n/a

Change-Id: I37fa746cd42c9ba23aba181f84cb6c619386406a
2017-03-03 14:47:47 -08:00
Tom Cherry
f1147f7dde Clarify that Condition::wait() can spuriously wake up
Also, remove the clarification that Condition::signal() wakes exactly
one thread as in the presence of spurious wake ups, this clarification
does not provide a safe guarantee to developers.

Bug: 34592766
Test: Build
Change-Id: I34df02e44a70a18fe04ceda858d002ef129c1fd9
2017-03-02 12:36:45 -08:00
Colin Cross
a4ca06b3b3 Merge changes I975ba933,Ica9d211b am: a9ef4dc7a2 am: 9ece9401a4
am: f695f6e842

Change-Id: I570c55be7a7cf3ad44e32717040689a68f67ada2
2017-02-28 20:37:29 +00:00
Colin Cross
a0931ebd64 Add tests for multiton issue
Test accessing a singleton from two libraries, the second of which
depends on the first but is dlopen'd after the first is already
loaded.

Bug: 35674422
Test: out/host/linux-x86/nativetest64/libutils_tests/libutils_tests
Change-Id: I975ba933a19b941a52bdb6e9c221a6910ffb8081
2017-02-28 16:34:35 +00:00
Colin Cross
62a6b16c4b Merge "Make libutils test compile on the host" am: f5fd4888ce am: a05a666c01
am: 3bc7d607d4

Change-Id: I00ac6f6871d925c805953eff0fa0c918cee3600a
2017-02-24 21:25:24 +00:00
Colin Cross
155c983ad1 Make libutils test compile on the host
Reapply of Icd5f39ae71b57167e9b2fe7ec09c5400bcb90e78 with
RefBase_test.cpp and Looper_test.cpp removed from mac builds.

Test: out/host/linux-x86/nativetest64/libutils_tests/libutils_tests
Test: out/host/darwin-x86/nativetest64/libutils_tests/libutils_tests
Change-Id: I5979b296a8500b5697d94d64fc441363047adcea
2017-02-24 08:10:06 -08:00
Richard Uhler
2aa94cfaf9 Merge "Revert "Make libutils test compile on the host"" am: 16f4fb9c4e am: 5682e001e9
am: 0d461283ce

Change-Id: I82132fc1e9eda421ed44a65029d389fdde67d5e8
2017-02-24 11:20:20 +00:00
Richard Uhler
16f4fb9c4e Merge "Revert "Make libutils test compile on the host"" 2017-02-24 11:10:43 +00:00
Richard Uhler
26bfee52b3 Revert "Make libutils test compile on the host"
Fails mac build: "system/core/include/utils/Looper.h:25:10: fatal error: 'sys/epoll.h' file not found"

This reverts commit afa891e85e.

Change-Id: Ib558b8f5a303b55ab32a399d338d8aac0fae32b2
2017-02-24 09:36:13 +00:00
Colin Cross
23eff4621f Merge changes Icd5f39ae,I2a4e956c am: 6d795c2883 am: 92466ff6ea
am: 9cb1d219bd

Change-Id: Ic79f7efd0090a940ac1cb7be1e863c2668790bd3
2017-02-24 07:09:41 +00:00
Treehugger Robot
6d795c2883 Merge changes Icd5f39ae,I2a4e956c
* changes:
  Make libutils test compile on the host
  Fix ODR issue in StrongPointer_test.cpp
2017-02-24 06:59:11 +00:00
Colin Cross
afa891e85e Make libutils test compile on the host
Test: out/host/linux-x86/nativetest64/libutils_tests/libutils_tests
Change-Id: Icd5f39ae71b57167e9b2fe7ec09c5400bcb90e78
2017-02-23 21:25:19 -08:00
Colin Cross
fe06c63301 Fix ODR issue in StrongPointer_test.cpp
StrongPointer_test.cpp's Foo was colliding with RefBase_test.cpp's
Foo.

Test: out/host/linux-x86/nativetest64/libutils_tests/libutils_tests
      from later CL
Change-Id: I2a4e956c88a07cec72d7ce734cf06c58134a4235
2017-02-23 21:25:18 -08:00
Colin Cross
477b3fc355 Merge "Fix multiton issue" am: 78b285b367 am: 6d7751a13b
am: dafd687617

Change-Id: I7e7369361dda3df0e97169c0d06ce24c57490c7d
2017-02-24 04:12:20 +00:00
Treehugger Robot
78b285b367 Merge "Fix multiton issue" 2017-02-24 04:03:11 +00:00
Colin Cross
b0145091a7 Fix multiton issue
I385a05a3ca01258e44fe3b37ef77e4aaff547b26 broke Singleton in the
same way that 544e3e3606 had already
fixed once.  Fix it again, the next CL will add tests.

This affected cases where two libraries referenced the same singleton,
the one that was supposed to define the singleton was already loaded,
and then the second library was dlopen'd.

Bug: 35674422
Test: out/host/linux-x86/nativetest64/libutils_tests/libutils_tests
      from later CL
Change-Id: I87c64f95ed294a887e67a6c11be3072299789f01
2017-02-23 18:22:46 -08:00
Tom Cherry
917cca2f04 Merge "Make Condition use CLOCK_MONOTONIC" am: 7f932afefc am: 36ba2fbef7
am: 83f76a20a8

Change-Id: I214548f856db2826b7a4ea96a98950fee7d20a27
2017-02-23 22:09:39 +00:00
Tom Cherry
1fb04ff4e5 Make Condition use CLOCK_MONOTONIC
Changes to the REALTIME clock can cause Condition::waitRelative() to
timeout early or delayed.  This behavior is undesired and new since
https://android-review.googlesource.com/#/c/181058/ moved the
underlying pthread_cond_timedwait() implementation to use absolute
timeouts rather than relative ones.  Having Condition use
CLOCK_MONOTONIC prevents these timeout issues.

Bug: 34592766
Bug: 35678943
Test: Boot bullhead
Test: Ensure time changes do not cause Condition::waitRelative() to
timeout early or delayed

Change-Id: I3a8d7a48f9b42fe990c3c7331313b6d85aa546f9
2017-02-23 10:58:05 -08:00
Steven Moreland
870a065800 Merge "Vector.h: remove unused import <new>" am: 1a4e2dfdf5 am: c50fce7dac
am: 4fbff753ba

Change-Id: I8581d836ee94d691f7a7a6b01dd9f7f8017fe093
2017-02-17 23:51:41 +00:00
Treehugger Robot
1a4e2dfdf5 Merge "Vector.h: remove unused import <new>" 2017-02-17 23:37:06 +00:00
Steven Moreland
40c7ddfc09 Vector.h: remove unused import <new>
Test: pass
Change-Id: I9d04c909a1bc82352f1eebe36602bf095ec3ca30
2017-02-17 13:19:08 -08:00
Steven Moreland
cee1918b08 Merge "Remove unused primes.py python file." am: 325eeebc47 am: e9ce5716ce am: 72ff4d5360
am: 374ef9d1c4

Change-Id: I349611742f6ccd8e4be97b1f45b1a316e61469e8
2017-02-17 01:33:00 +00:00
Steven Moreland
16afa6a0f0 Remove unused primes.py python file.
primes.py was used to calculate primes for BasicHashTable which no
longer exists.

Change-Id: I8c6e9b7882bcb8a3832c55249be6db9421d1f771
2017-02-16 14:30:44 -08:00
Steven Moreland
5717abf233 Merge "RefBase.cpp remove unused include typeinfo" am: 141e98474e am: d253899e1e am: 1bc2c960ee
am: 878f0c6bd6

Change-Id: I8230b912145a755c7c36bd4b3f3c26784c35e19a
2017-02-16 05:35:44 +00:00
Steven Moreland
1a055a8957 RefBase.cpp remove unused include typeinfo
Test: pass
Change-Id: Iec9b9e1e9b6c974124b2043f550fb110cc22846d
2017-02-15 19:04:40 -08:00
Elliott Hughes
b7d71b7f16 Merge "Make __android_log_assert behave more like libc asserts." am: 9df286012c am: ad2927d744 am: a7063b8257
am: 5647620cef

Change-Id: Iab197b5798c8754b5b824a8e6a7663ce7e69ef5f
2017-02-07 17:10:03 +00:00
Elliott Hughes
5bae1b866d Make __android_log_assert behave more like libc asserts.
If we don't output to stderr too, not only is it annoying to shell users (who
won't see anything), it prevents us from writing better gtests that actually
make assertions about the assert message.

Bug: http://b/23675822
Test: libutils tests still pass
Change-Id: I62b3144c385cba4dde485f0b0f9b42aeaef51e9a
2017-02-06 10:54:00 -08:00
Vijay Venkatraman
a040114bcb Merge "Exporting C++ headers from system/core" am: 812b7d5d52 am: f484dd3401 am: a252f11da3
am: 5a8f555e49

Change-Id: Id449aadc3b9e6e263d351ce031b1f7f7bb4672b8
2017-01-26 02:03:45 +00:00
Vijay Venkatraman
75acc7bf81 Exporting C++ headers from system/core
Moved headers from include/libutils and include/libsysutils to
libutils/include and libsysutils/include respectively, so they can be
exported via these libs. They needed to be moved since Soong does
not allow export from external folder.

Added symlink from old locations. They are needed since Soong
includes system/core/include by default. Once all modules are
cleaned up to explicitly add the required libs, the symlinks will be
removed.

Moved headers of libutils to libutils_headers. They should be used
by modules for header-only inlines. Added libutils_headers as
dependency of libutils.

Split of C++ headers into those that have no dependency and those that
have dependency on libutils.so will be handled in a later CL.

Test: Add above libs to shared lib of local module
Change-Id: I122db72056b26b1f39bad1d9a0c2a1c5efda3550
2017-01-24 22:51:36 +00:00
Mark Salyzyn
271a1a7cda resolve merge conflicts of a45b1d6f3 to master
Test: compile
Bug: 30465923
Change-Id: I648855539df3cfa176c6ecac19b6a562ba6feaf7
2017-01-11 11:41:38 -08:00
Mark Salyzyn
30f991f251 liblog: use log/log.h when utilizing ALOG macros
Test: compile
Bug: 30465923
Change-Id: Id6d76510819ebd88c3f5003d00d73a0dbe85e943
2017-01-11 09:31:15 -08:00
Dan Willemsen
00ae90ff80 Enable libbase/libutils/libziparchive on host bionic am: ab34b47b35 am: 69b0123549 am: 5bc670c841
am: 55d4de90a6

Change-Id: I11d8cb68123cedddd1450d05bef473037d41d550
2016-11-30 06:22:30 +00:00
Dan Willemsen
ab34b47b35 Enable libbase/libutils/libziparchive on host bionic
Bug: 31559095
Test: Test linux_bionic compile
Change-Id: Ib42c063532c1cbeb3e1418ab16a1fb54d5902aab
2016-11-29 13:38:53 -08:00
Mark Salyzyn
b4c9ab960e Merge "system/core: preparation to pull back interfaces from android/log.h" am: 27d2d49f48 am: 8a7297a09f
am: c561af07ae

Change-Id: I7bfb6dd925739345624a1ed16c0c3cb2106ad098
2016-10-20 18:21:18 +00:00
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
Elliott Hughes
c2b3b5fade Merge "Test for _WIN32 in instead of USE_MINGW." am: ec99158580 am: 2e7e065db9 am: 04819403d6
am: c9dc124e2f

Change-Id: I2cfb73fc12da1bb6396bfdd8f638b9ce977f84bc
2016-10-05 18:44:02 +00:00
Elliott Hughes
34a4f0b8c7 Test for _WIN32 in instead of USE_MINGW.
Bug: http://b/23392815
Test: builds
Change-Id: I7fce8de1f0e2314170cce456cd49346dcee9d134
2016-10-05 09:37:44 -07:00
Mark Salyzyn
7a7b066e5e system/core Replace log/log.h with android/log.h am: ff2dcd9af9 am: cac331afd9 am: 0308b0eabd
am: 9f6b98dec0

Change-Id: I1a1384253e4fce0489b7d1aa77b0f67ee12185c3
2016-10-01 00:43:22 +00:00
Mark Salyzyn
4bf372ae30 system/core Replace cutils/log.h with android/log.h am: 66ce3e08c5 am: eb189f147b am: 16f7786032
am: 0abff8fc61

Change-Id: I8c9d221094f0c27838e120aeb41fff276fbab4b2
2016-10-01 00:43:07 +00:00
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
66ce3e08c5 system/core Replace cutils/log.h with android/log.h
Should use android/log.h instead of cutils/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: I2c9cbbbd64d8dccf2d44356361d9742e4a9b9031
2016-09-30 12:47:05 -07:00
Colin Cross
910ab5ec75 Merge "Fix more system/core/include warnings" am: 18fbd80504 am: 5fe194a9fd am: b5ca47989c
am: 0763c30289

Change-Id: I4dcce9ecde9c7f1bf02952a1aafb6407a260d73b
2016-09-29 18:04:35 +00:00
Colin Cross
18fbd80504 Merge "Fix more system/core/include warnings" 2016-09-29 17:20:30 +00:00
Elliott Hughes
929f154c65 Merge "Use readdir instead of readdir_r." am: 833df5cd54 am: 16533c7c0b am: 1456ddd921
am: e96fcf044f

Change-Id: I1cd7b4264b7aaec8deccf4f05614cc817e7da0a6
2016-09-29 17:02:16 +00:00
Elliott Hughes
9f206938ed Use readdir instead of readdir_r.
http://elliotth.blogspot.com/2012/10/how-not-to-use-readdirr3.html

Test: boots.
Change-Id: If75532e24fe4d17743bf8e8c9590156dee378a63
2016-09-28 14:04:12 -07:00
Colin Cross
1811d156e9 Fix more system/core/include warnings
The warnings in these files were hidden by -isystem
framework/native/include.

Bug: 31752268
Test: m -j
Change-Id: I2a54376aea380ee24e6483fb7d35fdfe8991c490
2016-09-27 16:21:12 -07:00
Colin Cross
fd49e46c39 Merge "Fix warnings in libutils headers" am: 65a1633ec3 am: 0f79b62bf6 am: 1446cbac58
am: 28cda0bf38

Change-Id: I1190211b67e0c8d02ed1eb09c6b25401687069dd
2016-09-23 01:17:43 +00:00
Colin Cross
17b5b82d64 Fix warnings in libutils headers
system/core/include is included in the global include path using
-isystem, which hides all warnings.  Fix warnings in libutils
headers in preparation for moving from -isystem to -I.

- Fix implicit cast from int64_t to long in Condition.h.  Remove
  the __LP64__ check and always compare against LONG_MAX before
  casting.
- Fix implicit cast from size_t to ssize_t in KeyedVector.h
- Fix -Wshadow-field-in-constructor warnings in Looper.h and RefBase.h
- Move destructors for MessageHandler and LooperCallback to Looper.cpp
  and ReferenceRenamer and VirtualLightRefBase to RefBase.cpp to prevent
  vtables in every compilation unit.
- Declare template variables in Singleton.h
- Fix old-style casts in StrongPointer.h and TypeHelpers.h
- Use template metaprogramming in TypeHelpers.h to avoid warnings on
  memmove on non-trivial types.
- Add an assignment operator to key_value_pair_t to complete
  rule-of-three
- Use memcpy instead of dereferencing a reinterpret_casted pointer to
  treat the bits of a float or double as int32_t or int64_t
- Escape unicode sequences inside doxygen comments between \code and
  \endcode
- Remove WIN32 ZD definition in Compat.h, %zd works fine with mingw
- Fix WIN32 printf warnings in Filemap.cpp
- Initialize mNullValue with 0 in LruCache.h, some of the tests use a
  non-pointer type for TValue.

Test: m -j native
Bug: 31492149
Change-Id: I385a05a3ca01258e44fe3b37ef77e4aaff547b26
2016-09-22 13:03:15 -07:00
Greg Kaiser
6b85354ec4 Merge "SharedBuffer: Refactor release() logic" 2016-09-13 15:47:08 +00:00
Sergio Giro
1cfa56d46c libutils/Unicode.cpp: Correct length computation and add checks for utf16->utf8
Inconsistent behaviour between utf16_to_utf8 and utf16_to_utf8_length
is causing a heap overflow.

Correcting the length computation and adding bound checks to the
conversion functions.

Test: ran libutils_tests
Bug: 29250543
Change-Id: I6115e3357141ed245c63c6eb25fc0fd0a9a7a2bb
(cherry picked from commit c4966a363e)
2016-08-25 20:07:51 +00:00
Sergio Giro
9de6776321 Unicode: specify destination length in utf8_to_utf16 methods
String16(const char *utf8) now returns the empty string in case
a string ends halfway throw a utf8 character.

Bug: 29267949
Clean cherry-pick from 1dcc0c8239

Change-Id: I5223caa7d42f4582a982609a898a02043265c6d3
2016-08-25 19:57:06 +00:00
Hans Boehm
a1709d5269 Merge "Make RefBase more robust and debuggable" am: daac359be7 am: 7bf3d21fde am: 7dddf9433c
am: 2d3545fe82

Change-Id: I65537ec0db45b05f96dae43b8f4a91bd4af2d39b
2016-08-25 00:14:54 +00:00
Hans Boehm
7dddf9433c Merge "Make RefBase more robust and debuggable" am: daac359be7
am: 7bf3d21fde

Change-Id: I643c4bd38062b80d382c50ed161f5440f35c1dd9
2016-08-24 23:49:14 +00:00
Hans Boehm
daac359be7 Merge "Make RefBase more robust and debuggable" 2016-08-24 23:36:13 +00:00
John Reck
48c35dbe50 Make wake() error fatal
If wake() fails to write to mWakeEventFd, the looper is
screwed. This is really a fatal, unrecoverable error,
so treat it as such.

This is possibly an explaination for the unexplained
random ANRs

Change-Id: I5af3e013493b475d8e902d8ee6340f331e5d86c8
2016-08-23 09:39:39 -07:00
Hans Boehm
23c857ebd6 Make RefBase more robust and debuggable
This prevents two different kinds of client errors from causing
undetected memory corruption, and helps with the detection of others:

1. We no longer deallocate objects when the weak count goes to zero
and there have been no strong references.  This otherwise causes
us to return a garbage object from a constructor if the constructor
allocates and deallocates a weak pointer to this. And we do know
that clients allocate such weak pointers in constructors and their
lifetime is hard to trace.

2. We abort if a RefBase object is explicitly destroyed while
the weak count is nonzero.  Otherwise a subsequent decrement
would cause a write to potentially reallocated memory.

3. We check counter values returned by atomic decrements for
plausibility, and fail immediately if they are not plausible.

We unconditionally log any cases in which 1 changes behavior
from before. We abort in cases in which 2 changes behavior, since
those reflect clear bugs.
In case 1, a log message now indicates a possible leak. We have
not seen such a message in practice.

The third point introduces a small amount of overhead into the
reference count decrement path. But this should be negligible
compared to the actual decrement cost.

Add a test for promote/attemptIncStrong that tries to check for
both (1) above and concurrent operation of attemptIncStrong.

Add some additional warnings and explanations to the RefBase
documentation.

Bug: 30503444
Bug: 30292291
Bug: 30292538

Change-Id: Ida92b9a2e247f543a948a75d221fbc0038dea66c
2016-08-13 11:17:51 -07:00
Hans Boehm
9fb33735be Merge "Improve RefBase documentation, especially for clients." am: 0f39fe22ae am: df6c464e9a am: f997434b06
am: e725c79831

Change-Id: Idbc29ea28c0a63a35340b052a30b0106f8eae46d
2016-08-10 16:33:00 +00:00
Hans Boehm
f997434b06 Merge "Improve RefBase documentation, especially for clients." am: 0f39fe22ae
am: df6c464e9a

Change-Id: I8fa12835ff648d78c68265facb5b63ca7b1eab6a
2016-08-10 16:26:59 +00:00
Hans Boehm
df6c464e9a Merge "Improve RefBase documentation, especially for clients."
am: 0f39fe22ae

Change-Id: I804989b192142dc9d69ca36f0122079822625e7e
2016-08-10 16:24:01 +00:00
Hans Boehm
0f39fe22ae Merge "Improve RefBase documentation, especially for clients." 2016-08-10 16:16:22 +00:00
Hans Boehm
9ba7192c1f Improve RefBase documentation, especially for clients.
Add basic interface documentation to RefBase.h.

Much, but not all, of this is cut-and-pasted from an email message
from Mathias Agopian. The rest is reconstructed from the code.

Delete some, now redundant, text from Refbase.cpp, and add a bit
more about the implementation strategy.

Some minor fixes to internal comments.

Bug: 30292291
Change-Id: I56518ae5553bc6de0cc2331778e7fcf2e6c4fd87
2016-08-09 15:12:19 -07:00