Bionic's version scripts are unfortunately complicated enough that the
naive processing I was doing before is not going to be sufficient.
Add a real parser/generator with a bunch of tests to fix this.
Test: cc/test_gen_stub_libs.py && make ndk
Change-Id: I0f73b41ade1e6cf4e31bf70ba43a743429ce770b
This adds the `versioned=API` tag. This should be a very uncommonly
needed tag, and is really only needed to fix versioning mistakes that
are already out in the wild.
For example, some of libc's __aeabi_* functions were originally placed
in the private version, but that was incorrect. They are now in
LIBC_N, but when building against any version prior to N we need the
symbol to be unversioned (otherwise it won't resolve on M where it is
private).
Test: make ndk
Change-Id: I0cd2f80cf4b32356356914cf7ff4119e67f15032
A version block might need to be omitted for reasons beyond just
"future". Support all the same tags we do at symbol scope.
Test: `make ndk` with libc/libm migration patches.
Change-Id: I21f54c67079dae10fee1e5e08bcd01f8810e7a67
Symbols that have been added to a library but should not be exposed
in any of the current NDK API levels should be tagged with "future".
These will be suppressed from the NDK libraries.
Once all this is in better shape we'll have `sdk: "current"`. Symbols
tagged with "future" will be available for that.
Note that this tag can be applied directly to a version. Aside from
being more ergonomic than tagging an entire section, this also solved
the problem of gen_stub_libs.py emitting an empty global section
(which is not valid syntax) in the case where every symbol is
"future". Tag the version instead and it will be omitted.
Test: `make ndk` with libc/libm migration patches.
Change-Id: I41f6e4939c406f695ab5725f360ec6554ad8ab31
The list of migrated libraries is currently empty. Libraries will be
migrated as follow up patches.
Test: Migrated libc to this system and everything still builds.
build.ninja shows libraries being built and used and headers are
collected for the sysroot.
Bug: http://b/27533932
Change-Id: Iaba00543c1390f432befe0eed768ed3fbb8a9b96
