History log of /bionic/linker/linker_logger.cpp
Revision Date Author Comments
7a3681e5b6c39bc2b3b62031ca5941dbf7bc4e63 25-Apr-2017 Christopher Ferris <cferris@google.com> Move libc_log code into libasync_safe.

This library is used by a number of different libraries in the system.
Make it easy for platform libraries to use this library and create
an actual exported include file.

Change the names of the functions to reflect the new name of the library.

Run clang_format on the async_safe_log.cpp file since the formatting is
all over the place.

Bug: 31919199

Test: Compiled for angler/bullhead, and booted.
Test: Ran bionic unit tests.
Test: Ran the malloc debug tests.
Change-Id: I8071bf690c17b0ea3bc8dc5749cdd5b6ad58478a
9e27e58faa6ff08efbe85fc62943d483ecfed61a 24-Mar-2017 Elliott Hughes <enh@google.com> Add support for disabling the greylist.

Useful for testing whether apps have actually stopped using greylisted
libraries even if they still have references to them in their apk to support
old Android releases but also haven't bumped their targetSdkVersion yet.

Since we already have two expensive __system_property_get calls and this
would add a third, optimize two (but leave the third since it's not
obviously amenable to optimization). None of this matters for user builds,
but I don't want userdebug/eng to have distractingly different performance.

(cherrypick of 7933bec2872aa1c3430149c7649726333c0ac9d8.)

Bug: http://b/36106661
Test: ran "can you escape 5" with and without this property
Change-Id: Id9a804695c1dca9b4be2ebd0e72f01817bb13cba
7933bec2872aa1c3430149c7649726333c0ac9d8 24-Mar-2017 Elliott Hughes <enh@google.com> Add support for disabling the greylist.

Useful for testing whether apps have actually stopped using greylisted
libraries even if they still have references to them in their apk to support
old Android releases but also haven't bumped their targetSdkVersion yet.

Since we already have two expensive __system_property_get calls and this
would add a third, optimize two (but leave the third since it's not
obviously amenable to optimization). None of this matters for user builds,
but I don't want userdebug/eng to have distractingly different performance.

Bug: http://b/36106661
Test: ran "can you escape 5" with and without this property
Change-Id: Id9a804695c1dca9b4be2ebd0e72f01817bb13cba
30a36273ab761fb07892f7816b4873b6c48a0cea 23-Feb-2017 Elliott Hughes <enh@google.com> Cope with argv[0] being null in the dynamic linker.

Somewhat unsurprisingly, very few commands are happy to be run like this,
in particular multiplexed commands like toybox. But that's no reason for
the linker to get in the way too.

Bug: http://b/33276926
Test: new test
Change-Id: I6dd71ea0183f4da83571039c2198ebb6ed38520e
fbe54c4fe8c35294d60efbe0d1d6466211d4dc40 17-Feb-2017 Dimitry Ivanov <dimitry@google.com> Fix debug.ld for apps with long names and services

1. There is no longer limit on property names - remove
the trimming the name of the property.
2. Make debug.ld work for processes with names ending with ":something"
This is naming convention for services:
https://developer.android.com/guide/components/services.html

Bug: http://b/35338922
Bug: http://b/33926793
Test: manual - set ld.debug.app property for the app
Test: from http://b/35338922 and see that it works
Test: for the service as well.
Change-Id: Ic7c6d4edce4a5a22f144496d5c0a3e458217c6e4
cf00d86935b8cc3d64909aa153270bb9f2d97beb 14-Dec-2016 Dimitry Ivanov <dimitry@google.com> Add a way to track all dlsym calls (contd.)

The followup for 4742abdcb52f16120016a5005c466230d4c46341

Changes in this file got lost in the process of cherry-picking
the change across repositories.

Bug: http://b/29458203
Test: flash, set debug.ld.all to dlsym and check
if there are messages in logcat

Change-Id: I4613908e46e75c5d9ec66396767f10fc6d3e9777
554374693408cd7c74d0cae596fca7349661edea 21-Jul-2016 Dimitry Ivanov <dimitry@google.com> Pass argc/argv/envp to dso constructors

The glibc implementation of the loader passes argc/argv/envp
to all elf constructors. This change makes bionic linker
behave in the same way.

Bug: http://b/30145768
Change-Id: I1c65c42aa5305a5b133c64b5748205bbde869e0e
Test: run bionic-unit-tests --gtest_filter=dl*:Dl*
f857211675dcfe7abd311e4a7bef6d1685fb4a93 13-Jul-2016 Dimitry Ivanov <dimitry@google.com> Use trivial types to avoid calls to new for globals

To avoid initialization ordering problem avoid constructing
non-trivial global objects for linker_logger.

This patch also adds explicit check for bloc_size_ on alloc

Change-Id: I2cb3b13a10b7fac1f52a20038af77266d3e1da96
b996d60493a2e501655f23523b31fe34a63edd5c 12-Jul-2016 Dimitry Ivanov <dimitry@google.com> linker: Enable debug logging via properties

This patch lets developers tune logging of dlopen/dlerror with
setting system property.

Note that for security purposes this option is disabled on user build
for non-debuggable apps.

For starters there are 3 debug options:
dlerror - enables logging of all dlerrors
dlopen - traces dlopen calls

To enable system-wide logging (works only for userdebug/eng builds)
use debug.ld.all property.

To enable logging for particular app use debug.ld.app.<appname> property.

Example: Running "adb shell setprop debug.ld.all dlerror,dlopen" will log all
dlerror message as well as trace all calls to dlopen.

Bug: http://b/29458203
Change-Id: I2392c80a795509e16fe5689d0500d18b99772a64