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.
This fixes some build issues due to changes in Sandboxed API and
upstream Jsonnet.
PiperOrigin-RevId: 423787176
Change-Id: Ia3b9eab6b96e2fca70531f998e441ace04f31e3e
Plain `readdir` is preferred and while not (yet) specified in POSIX it is thread-safe for different directory streams in popular implementations.
PiperOrigin-RevId: 423321528
Change-Id: I4e1e842f338ff7d690c36e7f699b2f3637609524
- 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
Newer versions of libunwind use `PTRACE_GETREGSET` to obtain register data.
This change should make it easier to upgrade the libunwind dependency.
PiperOrigin-RevId: 420057842
Change-Id: Ib9abbeff574e457009709715f912ba5962033c5d
The former fixes the actual compiler option checks in `CMakeLists.txt`.
The latter is to avoid a compiler warning in `sandboxed_api/sandbox2/util.cc`,
which needs a stack frame size bigger than pthread's default value (16K).
PiperOrigin-RevId: 419618052
Change-Id: Ieaf72a03bfad0853d774ce0548040e3f2a3ebbc0
Raw `SAPI_RAW_PCHECK` may dump core, depending on environment settings
(issue #89).
This is undesirable in the face of invalid command-line arguments.
Signed-off-by: Christian Blichmann <cblichmann@google.com>
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
- Allow to specify multiple syscalls with `BlockSyscallsWithErrno()`
- Add functions to allow `unlink()` and `rename()` in all their spellings
PiperOrigin-RevId: 414987303
Change-Id: Ic0e680b785e8e3a3498f20e6a7403737e63fe876
__sanitizer_sandbox_on_notify is not tsan specific.
It's empty for other sanitizers now, but we are going to need it soon.
PiperOrigin-RevId: 414873197
Change-Id: I251ac38e5c886980b4baa7f05306643599a25090
