Change how DNS resolver handle no default iface

We used to just try any iface we'd been told about as a
fallback, but that will end up mistakenly using a secondary
network's dns when we really don't have a default connection.

It also messed up our detection of whether we were doing the
lookup on the default or not (we'd get back our secondary net
iface as the default, do the compare and think we were on default).

Remove the lies and let dns fail if we don't have an iface for it.

bug:10132565
Change-Id: I5f0f2abacaaaaf23c5292b20fba9d8dcb6fb10c5
Add explicit -m32/-melf_i386 for x86 target

Required for x86 build with multilib compiler.

Change-Id: Iac71cdc3461df6fb48cb2a7b713324ca368e6704
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
Merge "Change how DNS resolver handle no default iface"
Merge "Add explicit -m32/-melf_i386 for x86 target"
Create bionic unit test library for use with CTS.

Bug: 8291716

Change-Id: I46b749348456fae7892eecca6b44aef51a0e4747
Delete CAVEATS / fix spelling.

Change-Id: I0ed504271b7c2e4434d0d5f53bc10335c8cf7b5b
Merge "Delete CAVEATS / fix spelling."
Merge "Create bionic unit test library for use with CTS."
Change hard-coded directory.

The tests are using /data/data which is not accessible to a non-root
user. Change this to /data/local/tmp which is accessible to all users.

Bug: 8291716

Change-Id: I66476bbbaf5d1dc0c103863abf9219405f06a85b
Merge "Change hard-coded directory."
FORTIFY_SOURCE: introduce __strncpy_chk2

This change detects programs reading beyond the end of "src" when
calling strncpy.

Change-Id: Ie1b42de923385d62552b22c27b2d4713ab77ee03
Merge "FORTIFY_SOURCE: introduce __strncpy_chk2"
cdefs.h: introduce __bos0

Introduce __bos0 as a #define for __builtin_object_size((s), 0).
This macro is intended to be used for places where the standard
__bos macro isn't appropriate.

memcpy, memmove, and memset deliberately use __bos0. This is done
for two reasons:

1) I haven't yet tested to see if __bos is safe to use.
2) glibc uses __bos0 for these methods.

Change-Id: Ifbe02efdb10a72fe3529dbcc47ff647bde6feeca
Merge "cdefs.h: introduce __bos0"
Merge remote-tracking branch 'aosp/master'