Commit Graph

14 Commits (ee58a410d93c4436c8c8875ab76760404b43d7a8)

Author SHA1 Message Date
Wiktor Garbacz ee58a410d9 Handle S2 unwinding by trapping ptrace
PiperOrigin-RevId: 491893277
Change-Id: I427a2e485173c73fffead43e29511460c58c4f04
2022-11-30 06:00:29 -08:00
Wiktor Garbacz 77c80b7213 unwind: Skip Mapping Symbols on ARM
ARM documentation for Mapping Symbols:
https://developer.arm.com/documentation/dui0803/a/Accessing-and-managing-symbols-with-armlink/About-mapping-symbols

PiperOrigin-RevId: 491836684
Change-Id: I2e259e66f2253d80902aa763f2637f3f6fdea414
2022-11-30 00:16:37 -08:00
Christian Blichmann dc03c38df1 Enable stack traces on AArch64
Note that `//sandboxed_api/sandbox2:stack_trace_test` may still fail for
unrelated reasons, as we are linking libc statically, which is brittle. A
follow-up change will fix this.

PiperOrigin-RevId: 427175045
Change-Id: Ifb5ec2ac3d60f4bcc9708f26c834c83b75e769d7
2022-02-08 06:23:52 -08:00
Christian Blichmann d451478e26 Change license link to HTTPS URL
PiperOrigin-RevId: 424811734
Change-Id: If5ea692edc56ddc9c99fd478673df41c0246e9cc
2022-01-28 01:39:09 -08:00
Wiktor Garbacz 424c543eb7 Automated rollback of commit 4a38f59728.
PiperOrigin-RevId: 381815277
Change-Id: I344c9bb1a505cc0a0dcf7e9ff979c172c484d963
2021-06-28 02:03:06 -07:00
Sandboxed API Team 4a38f59728 Automated rollback of commit a850aa44d2.
PiperOrigin-RevId: 380897565
Change-Id: Iacc50697a5ff25b79272a1549291bbf32152d3f6
2021-06-22 14:50:33 -07:00
Wiktor Garbacz a850aa44d2 Better error handling in stacktraces
PiperOrigin-RevId: 380789060
Change-Id: I655428fd45bf305f787b75cc925d31c6ab60c074
2021-06-22 05:52:15 -07:00
Christian Blichmann 00a7cc5a33 Use `sapi::file::GetContents()` and light Mini-ELF refactoring
Plus some style fixes.

PiperOrigin-RevId: 370901533
Change-Id: If4f9d7c3157fdfc2ca4302b06cd95e96e7a8ebdd
2021-04-28 07:49:17 -07:00
Christian Blichmann ab7943abdc Simplify ptrace emulation and code style fixes
PiperOrigin-RevId: 369862187
Change-Id: Ia0759c320cde1c9e3798f0df5c2a0d50ca20fd71
2021-04-22 06:56:45 -07:00
Christian Blichmann dbaf95c724 Move utility code into `sandboxed_api/util`
This change should make it less confusing where utility code comes from.
Having it in two places made sense when we were debating whether to publish
Sandbox2 separately, but not any longer.

Follow-up changes will move `sandbox2/util.h` and rename the remaining
`sandbox2/util` folder.

PiperOrigin-RevId: 351601640
Change-Id: I6256845261f610e590c25e2c59851cc51da2d778
2021-01-13 09:25:52 -08:00
Wiktor Garbacz e9f7293e21 Fix ptrace_hook dependency graph
PiperOrigin-RevId: 321748143
Change-Id: Idb453054b78e932ce13c5f44f7d408cc0f9c31f2
2020-07-17 03:20:43 -07:00
Christian Blichmann f44cca6c98 Fix path to generated proto sources when embedding
When embedding SAPI in an external CMake project, the version of
`protobuf_generate_cpp` that we lifted from upstream protobuf produces
the wrong generated file paths.

For example, given this project structure:

```
/parent/
+-- myproject/
+-- myproject_build/  <- CMake build directory
+-- sandboxed-api/    <- Checkout from GitHub
```

And a CMake file in `myproject/CMakeLists.txt` that embeds SAPI like
this:

```
cmake_minimum_required(VERSION 3.12)
project(SandboxedTest LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

add_subdirectory(
  ${PROJECT_SOURCE_DIR}/../sandboxed-api
  ${PROJECT_BINARY_DIR}/sandboxed-api
)
```

Then `protobuf_generate_cpp` correctly invokes the protoc compiler to
generate
`/parent/myproject_build/sandboxed-api/sandboxed_api/proto_arg.proto.pb.cc'.
However, the path of the generated source file that is passed to the C++
compiler will be
`/parent/myproject_build/sandboxed-api/sandboxed_api/../../myproject_build/sandboxed-api/sandboxed_api/proto_arg.pb.cc`.
Note the duplicated project build directory component in the
canonicalized version:
`/parent/myproject_build/myproject_build/sandboxed-api/sandboxed_api/proto_arg.pb.cc`.

This change simple omits the computation of any relative file paths and
simply uses `_pb_PROTOC_OUT_DIR` which defauls to
`CMAKE_CURRENT_BINARY_DIR`, which should always contain the correct
path.

Signed-off-by: Christian Blichmann <mail@blichmann.eu>
2020-03-18 18:47:02 +01:00
Christian Blichmann 441201884a Update license header with recommended best practices
PiperOrigin-RevId: 290250533
Change-Id: Ic34b253446463cf971a055b70a242df93a598ee3
2020-01-17 05:05:29 -08:00
Christian Blichmann 6bfa83befe CMake support for Sandbox2
- Add a superbuild in cmake/SuperBuild.cmake that downloads and builds
  dependencies
- Builds for sandbox2/ and a its tests
- Helper CMake function to strip proto paths
- Module to find libcap
- Custom build for libunwind that wraps its symbols
- Fix environment so that CTest executes tests similar to Bazel
- Filewrapper functionality, like Bazel's cc_embed_data()
- Build forkserver with embedded binary
- Enable ASM language so that libunwind builds correctly
- Allow glog target to propagate transitively (to propagate its include dirs)

Signed-off-by: Christian Blichmann <cblichmann@google.com>
2019-05-06 14:03:29 +02:00