Commit graph

3 commits

Author SHA1 Message Date
Dimitry Ivanov
5543746934 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*
2016-07-20 16:10:19 -07:00
Dimitry Ivanov
f857211675 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
2016-07-13 10:33:15 -07:00
Dimitry Ivanov
b996d60493 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
2016-07-12 14:22:13 -07:00