A cc_library or cc_library_shared can be configured to have stubs
variants of the lib.
cc_library_shared {
name: "libfoo",
srcs: ["foo.cpp"],
stubs: {
symbol_file: "foo.map.txt",
versions: ["1", "2", "3"],
},
}
then, stubs variants of libfoo for version 1, 2, and 3 are created
from foo.map.txt. Each version has the symbols from the map file where
each symbol is annotated with the version that the symbol was introduced
via the 'introduced=<ver>' syntax. The versions don't need to be in sync
with the platform versions (e.g., P for 28). The versions are local to
the library.
For another library or executable to use the versioned stubs lib, use
the new 'name#ver' syntax to specify the version:
cc_binary {
name: "test",
....
shared_libs: ["libFoo#2"],
}
Internally, a new mutator 'version' is applied to all cc.Module objects.
By default, a variant named 'impl' is created for the non-stub version.
If the versions property is set, additional variations are created per a
version with the mutable property BuildStubs set as true, which lets the
compiler and the linker to build a stubs lib from the symbol file
instead from the source files.
This feature will be used to enforce stable interfaces among APEXs. When
a lib foo in an APEX is depending on a lib bar in another APEX, then bar
should have stable interface (in C lang) and foo should be depending on
one of the stubs libs of bar. Only libraries in the same APEX as foo can
link against non-stub version of it.
Bug: 112672359
Test: m (cc_test added)
Change-Id: I2488be0b9d7b7b8d7761234dc1c9c0e3add8601c
recovery_available property is required in cc_genrule. Specifically,
we will mark libminijail as recovery_available:true as part of building
adbd and other stuffs for recovery. Some source code of libminijail is
created via cc_genrule, so we need recovery_available in the module
type.
Bug: 79146551
Test: m -j
Change-Id: I0cf0d9b1004dda055373573e5c5a7debd112685f
cc_genrule is the same as a normal genrule, but can depend on other cc
modules (like cc_object).
Test: mmma external/minijail
Change-Id: I8df87665c7bdc76ce89c92755c054f967a818e57
