With this change, the generated build system can now decide when the SAPI
protos are out of date and need to be rebuilt. Previously, the protos had
to always be regenerated which meant compiling a big part of the codebase
after each CMake configure run, even if nothing else changed.
PiperOrigin-RevId: 455599389
Change-Id: If75b6e870cd37f3136681fc73a404c5678623e52
This finally prevents Ninja from rebuilding everything needlessly each time a
CMake reconfiguration was triggered. The root cause is that we used
`file(WRITE ...)`, which always unconditionally overwrites, so Ninja sees
those files as "dirty".
PiperOrigin-RevId: 453849514
Change-Id: Ib878df21371387baa7bf791a0a054e1ea5d6b6ae
Instead of calling `google::InitGoogleLogging()` directly, introduce an
indirection via a new utility library. After this change, Sandboxed API
should consistently use `sapi::InitLogging()` everywhere.
For now, `sapi::InitLogging()` simply calls its glog equivalent. However,
this enables us to migrate away from the gflags dependency and use Abseil
flags. Once a follow-up change lands, `sapi::InitLogging()` will instead
initialize the google logging library with flags defined from Aseil.
Later still, once Abseil releases logging, we can then drop the glog
dependency entirely.
PiperOrigin-RevId: 445363592
Change-Id: Ia23a7dc88b8ffe65a422ea4d5233bba7bdd1303a
`BUILD_TESTING` is a CMake provided option and we should use similar naming,
just like how Abseil does it.
- `SAPI_ENABLE_TESTS` -> `SAPI_BUILD_TESTING`
- `SAPI_ENABLE_CONTRIB_TESTS` -> `SAPI_CONTRIB_BUILD_TESTING`
- `SAPI_ENABLE_EXAMPLES` -> `SAPI_BUILD_EXAMPLES`
Drive-by:
- Fix option name in GitHub action
PiperOrigin-RevId: 443305932
Change-Id: Ice2b42be1229a0f9ae7c2ceda9ce87187baf22c4
The generated `compile_commands.json` contains everything that the interface
generator needs.
PiperOrigin-RevId: 439800377
Change-Id: I5b364edc20eaae9554ce10a96caa3559fb780210
This will allow us to experiment with (and subsequently migrate to)
changes to the generated API, possibly incompatible ones.
This change should be a no-op for current builds, as there is only
a single version of Sandboxed API.
PiperOrigin-RevId: 438003314
Change-Id: Ia23ea4360bee0227692d9f5220ab20d85f089ba7
Newer versions of the GNU gold linkers sometimes omit the symbols for
sandboxed functions, leading to errors like `function not found` when
Sandboxed API tries to call them at runtime.
The fix is simple: Do what Bazel does and wrap the static library in
a `-Wl,--whole-archive`/`-Wl,--no-whole-archive` pair.
PiperOrigin-RevId: 426910732
Change-Id: Id4183f2964a2dea4fc1dfd8c409bc0b1af9db170
Addresses #104 and also fixes a TODO to use `target_link_options()`
and the `LINKER:` prefix in the SAPI build defs.
PiperOrigin-RevId: 426113536
Change-Id: I5322ab975986ceccedfab030cd4610287d297c35
Add a new option `SAPI_ENABLE_CONTRIB_TESTS` that builds the sandboxes
in `contrib/` if set.
The new `contrib/CMakeLists.txt` should be extended each time we add a
new sandbox to `contrib/`.
This is in preparation of a follow-up change that should test the
sandboxes using GitHub Actions.
Drive-by:
- Rename the tests in `jsonnet_tests.cc` to conform to the style guide.
PiperOrigin-RevId: 425874289
Change-Id: I5b31546ccf84444c2480287220ef88abbd78a235
This change starts with Jsonnet as the canonical, ready-made sandboxed library
example. Follow-up changes should similarly migrate the OSS Internship
sandboxes.
- Add an `add_sapi_subdirectory()` which sets up source and binary directories
correctly when consuming SAPI as sub-project
- Restructure the Jsonnet `CMakeLists.txt` and simplify header inclusions
- Update the Jsonnet README file
PiperOrigin-RevId: 425818479
Change-Id: Iba9e83201863b4ad8a91914397b310d9d4230423
This partially reverts the zlib change in 41e0ca0. Turns out the
`CMakeLists.txt` that ships with zlib leaves much to be desired.
PiperOrigin-RevId: 424800727
Change-Id: I356e3bb8d18461a52f845baa4913adff6549ef00
This updates the mininum required version of CMake to 3.13, which is
present in Debian Buster.
At the same time, move all of our dependency handling to use
`FetchContent_Declare()`, `FetchContent_Populate()` and
`FetchContent_MakeAvailable()`. Since the latter was ony introduced in
3.14, provide a simple "polyfill" implementation for that.
As an added benefit, the configure step for libffi and libunwind will
now not be re-run every time the `CMakeLists.txt` changes.
Other changes:
- Explicitly spell out that we're testing up to 3.22 in
`cmake_minimum_version()`
- Rename `check_target()` to `sapi_check_target()` to avoid conflicts
with Abseil.
- Check for Linux (Android TBD once that lands) and C++17
- Move `SAPI_HARDENED_SOURCE` check after compile options are evaluated
- Use a more modern way to set the required C++ standard, compatible with
Abseil's `ABSL_PROPAGATE_CXX_STD`.
- Scope `-fno-exceptions` and `POSITION_INDEPENDENT_CODE` to SAPI targets
- Increase maximum stack frame size yet again
PiperOrigin-RevId: 422369190
Change-Id: If75405ee43740de90196f52cddc8938482eae851
The newer version includes a fix for a compilation error on newer
systems (specfically, `benchmark_register.h` was missing an include
for the `limits` header).
PiperOrigin-RevId: 417814324
Change-Id: I43464cf48d7a7d3954acffdb78b284850ba60144
This fixes a build warning about an uninitialized variable whiche turns into
an error in recent Clang versions.
PiperOrigin-RevId: 417768690
Change-Id: I5c3407d5e51a1411db8cc312e49694de0866eb45
This is needed for some compiler versions where `absl::string_view` == `std::string_view`.
PiperOrigin-RevId: 367392064
Change-Id: Id91d23510501df4745f386475ef9049d94062e1b
Now unwinding will properly handle binaries inside bind-mounted directories.
Drive-by:
- Get rid of n^2 path handling
- Get rid of namespace alias
PiperOrigin-RevId: 358353666
Change-Id: Ieec7690ec6a1ae6d358de375220566b69e8cb094
- Move CMake superbuild files
- Drop use of `CMakeLists.txt.in` configure files
- Allow overriding dependency directories. For now, this should only be
used by GitHub workflows. Will be expanded on later, possibly renaming
the variables.
This change is one in a series to make it easier to consume/customize
Sandboxed API in downstream projects.
Drive-by:
- Update `.gitignore` to ignore clangd's `.cache` directory
Signed-off-by: Christian Blichmann <cblichmann@google.com>
This change enables support for 32-bit ARM, as used by embedded controllers and older phones.
Note: This does not support 32-bit sandboxees on AArch64. Both sandboxee and host code must have the same bitness.
PiperOrigin-RevId: 347835193
Change-Id: I6395882677530f9862f118d2dc10230a61049836
This allows resource-constrained environments to benefit from the
space savings of dynamic linking. This is not meant to be used in
the general case.
PiperOrigin-RevId: 347398828
Change-Id: Ia634959148a31159878f48c44255dd733424a2b8
- Support multiple input files
- Better testability
- Support for the `--sapi_isystem` argument, same as the Python generator
PiperOrigin-RevId: 333686891
Change-Id: I3e618165c1bd58bb755e1193617fb0737c29ee77
The Bazel build already queries the current toolchain for its system include
directories. This change brings feature parity and is necessary for systems
with unusual include locations.
PiperOrigin-RevId: 332195812
Change-Id: Ie81d614d21e90b4bd9edf2084ef80bf0d85dd750
This removes our own fork of `absl::StatusOr<>`. Sandboxed API still includes
a custom matcher for Googletest, as that is not open source yet. For
compatibility, the `statusor.h` header is still retained and now aliases
`sapi::StatusOr<>` to `absl::StatusOr<>`.
PiperOrigin-RevId: 329916309
Change-Id: I0544b73a9e312dce499bc4128c28457e04ab9929
This way, one can just run `ctest .` in the build directory and it will only
run Sandboxed API and Sandbox2 tests.
PiperOrigin-RevId: 321342543
Change-Id: I42537e64bfb3127dca00bd92a3f7b35ca64004d9
This is done by simply building libffi in-tree. Normally, this is not
desirable, but in our case is actually ok, as this is an external
dependency to be pulled in and cleaning the source tree is easy in this
case.
Signed-off-by: Christian Blichmann <mail@blichmann.eu>
- Extract dependent types directly from the Clang AST and re-serialize
back into compilable code
- Collect types and emit diagnostics
- Format generated code
Signed-off-by: Christian Blichmann <mail@blichmann.eu>
When using SAPI from an external project via CMake, the small zlib patch
cannot be found during the config phase.
This change also fixes an oversight in that the tests depend on some of
the example code.
Regardless embedding code should set `SAPI_ENABLE_EXAMPLES` to `OFF`.
Disabling tests by setting `SAPI_ENABLE_TESTS` to `OFF` stays optional.
PiperOrigin-RevId: 311290454
Change-Id: Ibe105895859b793b20f47c89b1a9e11cbfef2e2f
Similar to what the Bazel build does, this change adds zlib as an additional
dependency when `SAPI_ENABLE_EXAMPLES` is set to `ON`.
PiperOrigin-RevId: 309203959
Change-Id: I201a9e6415789afb1e058bc48cebbc0fc0004fe9
Abseil insists on having a Google Test directory, even if we're not going to
run (or even build) the tests.
This changes forces all test settings to `OFF` just for Abseil, allowing
SAPI builds to complete normally. Embedding projects should not be affected,
if they already included Abseil.
PiperOrigin-RevId: 309035680
Change-Id: Ie46297d8b502d92d0c10ef04360e992bcee4964b
