Support any number of overlay packages. Support any target package.
UPDATED PACKAGE MATCHING
------------------------
In Runtime resource overlay, iteration 1, only a single overlay package
was considered. Package matching was based on file paths:
/vendor/overlay/system/framework-res.apk corresponded to
/system/framework-res.apk. Introduce a more flexible matching scheme
where any package is an overlay package if its manifest includes
<overlay targetPackage="com.target.package"/>
For security reasons, an overlay package must fulfill certain criteria
to take effect: see below.
THE IDMAP TOOL AND IDMAP FILES
------------------------------
Idmap files are created by the 'idmap' binary; idmap files must be
present when loading packages. For the Android system, Zygote calls
'idmap' as part of the resource pre-loading. For application packages,
'idmap' is invoked via 'installd' during package installation (similar
to 'dexopt').
UPDATED FLOW
------------
The following is an outline of the start-up sequences for the Android
system and Android apps. Steps marked with '+' are introduced by this
commit.
Zygote initialization
Initial AssetManager object created
+ idmap --scan creates idmaps for overlays targeting 'android', \
stores list of overlays in /data/resource-cache/overlays.list
AssetManager caches framework-res.apk
+ AssetManager caches overlay packages listed in overlays.list
Android boot
New AssetManager's ResTable acquired
AssetManager re-uses cached framework-res.apk
+ AssetManager re-uses cached 'android' overlays (if any)
App boot
ActivityThread prepares AssetManager to load app.apk
+ ActivityThread prepares AssetManager to load app overlays (if any)
New AssetManager's ResTable acquired as per Android boot
SECURITY
--------
Overlay packages are required to be pre-loaded (in /vendor/overlay).
These packages are trusted by definition. A future iteration of runtime
resource overlay may add support for downloaded overlays, which would
likely require target and overlay signatures match for the overlay to
be trusted.
LOOKUP PRIORITY
---------------
During resource lookup, packages are sequentially queried to provide a
best match, given the constraints of the current configuration. If any
package provide a better match than what has been found so far, it
replaces the previous match. The target package is always queried last.
When loading a package with more than one overlay, the order in which
the overlays are added become significant if several packages overlay
the same resource.
Had downloaded overlays been supported, the install time could have been
used to determine the load order. Regardless, for pre-installed
overlays, the install time is randomly determined by the order in which
the Package Manager locates the packages during initial boot. To support
a well-defined order, pre-installed overlay packages are expected to
define an additional 'priority' attribute in their <overlay> tags:
<overlay targetPackage="com.target.package" priority="1234"/>
Pre-installed overlays are loaded in order of their priority attributes,
sorted in ascending order.
Assigning the same priority to several overlays targeting the same base
package leads to undefined behaviour. It is the responsibility of the
vendor to avoid this.
The following example shows the ResTable and PackageGroups after loading
an application and two overlays. The resource lookup framework will
query the packages in the order C, B, A.
+------+------+- -+------+------+
| 0x01 | | ... | | 0x7f |
+------+------+- -+------+------+
| |
"android" Target package A
|
Pre-installed overlay B (priority 1)
|
Pre-installed overlay C (priority 2)
Change-Id: If49c963149369b1957f7d2303b3dd27f669ed24e
Introduce a new tool 'idmap' to handle generation and verification of
idmap files. The tool is modelled on 'dexopt', and is intended to be
used similarly, notably by 'installd'.
See cmds/idmap/idmap.cpp for further documentation on 'idmap'.
Note: this commit is interdependent on a commit in project build/ to add
'idmap' to PRODUCT_PACKAGES.
Note: the changes to androidfw are only stubs. The actual implementation
will be provided in Runtime resource overlay, iteration 2.
Change-Id: I7131b74ece1e46c8a9c0a31d103e686aa07da2bb
OpenMAX IL does not have generic support for AC3, but IL 1.1.2 and above
supports component extension APIs, which enable us to add our own constants
and definitions.
Change-Id: Iecee4f8bb3112b0720ceae9192017e12d3fe97e3
Stop printing "invalid id " to stderr every time a process tries to
connect to the servicemanager.
Change-Id: Ib0e5a0375bfa2dec2c2f9cd668bd5dda46ed6588
SensorFusion is always returning data at the slowest possible sampling rate (5 Hz). batch() is getting called twice, first time with the requested rate and second time with the slowest rate (which overwrites the requested rate). Fix batch call in SensorFusion::activate()
Bug: 12064319
Change-Id: If62f3e514233f69810336fd22b136b4395b667d3
Changes include
- Binder attempts to cast pointers to a int datatype
which is not sufficient on a 64-bit platform.
- This patch introduces new read/write functions into
Parcel that allow pointers to be written using the
uintptr_t datatype for compile-time data type size
selection.
- Change access specifier for the methods above.
- Binder uses the 64bit android_atomic_release_cas64
(aka cmpxchg)
Change-Id: I595280541e0ba1d19c94b2ca2127bf9d96efabf1
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
This patch adds support for binder transactions on 64bit systems
without breaking the existing 32bit ABI. It has been tested on
the Android emulator and ARMv8 Model.
Most of the changes in this patch just follow the binder ABI.
Change-Id: I8c37b847ea65008d56554d34d4696fe3d22f7533
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
This patch corrects the types used for storing handles.
Change-Id: If9c10782345f1de9e12b4b3fd6be9e02e6b568cd
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
This patch fixes some of the ServiceManager issues. The following patches
of the series add fixes to the ABI.
Change-Id: Ib479234c8704e12592f1b149ddec67881bc50230
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
This patch extends the error handling. It also adds a check for a matching
binder version - kernel/userspace.
Change-Id: I43a262934b38c5711536aaa42754fed1ef04b39e
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
This patch fixes Android.mk and enables building bctest as an optional
module without any extra hacks.
Change-Id: Icaf8bf9452776db2ea4a2ba75f3abf05b4e2cdab
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
This patch switches ServiceManager to use the structures exported in the
kernel headers rather then redefining its own.
struct binder_txn is replaced with struct binder_transaction_data and struct
binder_object with struct flat_binder_object, both defined in the binder driver
header <linux/binder.h>.
Change-Id: I3b3e97918173ea35a289e184774ae06193192da3
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
GLES_trace passes some pointers back to the host. Encode them
using int64's rather than int32's
This fix requires an update to the host tool to look at pointers
as 64 bit, and if not found, then fall back to 32 bit integers.
Change-Id: I11ff2ca51290f05913c1b9143cecee1caf015543
b/12487813
SurfaceFlinger crash is observed during simulation of
Secondary display
Note: change 14e8b01a76
removed the initialization leading to the crash when
simulating secondary display. Restore the initialization
to solve the problem.
Change-Id: Iae5845fb82735e01de5cc0dc582d13c27e3c614f
Signed-off-by: mayank parshar <mayankp@broadcom.com>
Signed-off-by: Pierre Couillaud <pierre@broadcom.com>
MobC00383030
b/12487813
SurfaceFlinger crash is observed while connecting
to Wi-Fi display.
Note: change 14e8b01a76
removed the initialization leading to the crash when
running through the HWC composition path. Restore the
initialization to solve the problem.
Change-Id: I581defc7135ac512080c0da06a62b1dae7d218c4
Signed-off-by: mayank parshar <mayankp@broadcom.com>
Signed-off-by: Pierre Couillaud <pierre@broadcom.com>
Fix size of vertex_t on 64-bit architectures
Fix __get_tls casts, the TLS area is a void**
Cast through uintptr_t to store integers in a pointer
Use %zu to print size_t
Change-Id: I91079ec76025237e6d2081784c5348518b0ce122
