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# Deprecation
of Make
We
've made significant progress converting AOSP from Make to Soong (Android.mk
to Android.bp),
and we
're ready to start turning off pieces of Make. If you
have any problems converting, please contact us via:
* The [android-building@googlegroups.com] group.
* Our [
public bug tracker](
https://issuetracker.google.com/issues/new?component=
381517).
*
Or privately through your existing contacts at Google.
## Status
[build/make/core/deprecation.mk]
is the source
of truth, but
for easy browsing:
|
Module type |
State |
|
-------------------------------- | --------- |
| `BUILD_AUX_EXECUTABLE` | Obsolete |
| `BUILD_AUX_STATIC_LIBRARY` | Obsolete |
| `BUILD_COPY_HEADERS` |
Error |
| `BUILD_HOST_EXECUTABLE` |
Error |
| `BUILD_HOST_FUZZ_TEST` | Obsolete |
| `BUILD_HOST_NATIVE_TEST` | Obsolete |
| `BUILD_HOST_SHARED_LIBRARY` |
Error |
| `BUILD_HOST_SHARED_TEST_LIBRARY` | Obsolete |
| `BUILD_HOST_STATIC_LIBRARY` |
Error |
| `BUILD_HOST_STATIC_TEST_LIBRARY` | Obsolete |
| `BUILD_HOST_TEST_CONFIG` | Obsolete |
| `BUILD_NATIVE_BENCHMARK` | Obsolete |
| `BUILD_SHARED_TEST_LIBRARY` | Obsolete |
| `BUILD_STATIC_TEST_LIBRARY` | Obsolete |
| `BUILD_TARGET_TEST_CONFIG` | Obsolete |
| `BUILD_*` | Available |
##
Module Type Deprecation Process
We
'll be turning off `BUILD_*` module types as all of the users are removed
from AOSP (
and Google
's internal trees). The process will go something like
this, using `BUILD_PACKAGE`
as an example:
* Prerequisite:
all common users
of `BUILD_PACKAGE` have been removed (some
device-specific ones may remain).
* `BUILD_PACKAGE` will
be moved
from `AVAILABLE_BUILD_MODULE_TYPES`
to
`DEFAULT_WARNING_BUILD_MODULE_TYPES`
in [build/make/core/deprecation.mk]. This
will make referring
to `BUILD_PACKAGE` a warning.
* Any devices that still have warnings will have
`BUILD_BROKEN_USES_BUILD_PACKAGE :=
true` added
to their `BoardConfig.mk`.
* `BUILD_PACKAGE` will
be switched
from `DEFAULT_WARNING_BUILD_MODULE_TYPES`
to
`DEFAULT_ERROR_BUILD_MODULE_TYPES`, which will turn referring
to
`BUILD_PACKAGE` into an
error unless the device has overridden it.
* At some later point, after
all devices
in AOSP no longer
set
`BUILD_BROKEN_USES_BUILD_PACKAGE`, `BUILD_PACKAGE` will
be moved
from
`DEFAULT_ERROR_BUILD_MODULE_TYPES`
to `OBSOLETE_BUILD_MODULE_TYPES`
and the
code will
be removed. It will no longer
be possible
to use `BUILD_PACKAGE`.
In most
cases, we expect
module types to stay
in the default warning
state for
about two weeks before becoming an
error by default.
Then it will spend some
amount
of time in the default
error state before moving
to obsolete
-- we'll
try
and keep that around
for a
while, but other development may cause those
to
break,
and the fix may
to be to obsolete them. There
is no expectation that the
`BUILD_BROKEN_USES_BUILD_*` workarounds will work
in a future release, it
's a
short-term workaround.
Just
to be clear, the above process will happen on the AOSP master branch. So
if you
're following Android releases, none of the deprecation steps will be in
Android Q,
and the
2020 release will have jumped directly
to the
end for many
module types.
[android-building@googlegroups.com]:
https://groups.google.com/forum/#!forum/android-building
[build/make/core/deprecation.mk]: /core/deprecation.mk