Commit Graph

4 Commits

Author SHA1 Message Date
Jiyong Park fc752ca1ac Let genrule be mutatable by the apex mutator
genrule modules were not mutated by the apex mutator. As a result, a
module that is mutated for an apex have depended on the genrule modules
host_bionic_linker_{asm|flags} that are not mutated for the APEX.

This in turn caused an inconsistency problem because the
host_bionic_linker_* genrules use the dynamic linker that isn't mutated
for APEX as an input, while the outputs of the genrules are used by
modules mutated for APEX. The inconsistency caused b/135008828.

Fixing this issue by correctly let genrule to be mutated by the apex
mutator.

Bug: 135008828
Test: checkout master-art-host
ALLOW_MISSING_DEPENDENCIES=true DIST_DIR=out/dist
./art/tools/dist_linux_bionic.sh -j50 showcommands
com.android.runtime.host
is passing

Change-Id: I92d90400c61d3951f6202d932832d0cb63c95a7d
2019-06-12 13:28:11 +09:00
Jiyong Park 7ed9de3b81 Add support for versioned stubs.
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
2018-10-30 09:55:48 +09:00
Jiyong Park 3f736c9661 Add recovery_available to cc_genrule
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
2018-05-24 14:01:54 +09:00
Dan Willemsen 3e5bdf29ba Add cc_genrule
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
2017-09-18 23:33:25 -07:00