Commit Graph

47 Commits

Author SHA1 Message Date
Christian Blichmann
c2b7cffe78 Minielf: Use a template to load integers
Different versions of the `elf.h` header define their own integer types. For
example, even on LP64 systems, a 64-bit ELF integer types may decay into
`unsigned long long` instead of `unsigned long`.

This change replaces the various overloads with a single function template
that is well-defined for all integral types.

PiperOrigin-RevId: 410746713
Change-Id: I4b560f7541802372f01ae3d6f4a56554e51d70c8
2021-11-18 02:16:26 -08:00
Christian Blichmann
ccd7b03026 Introduce sapi::OsErrorMessage() for error handling
This should make handling OS error less repetetive.

PiperOrigin-RevId: 387074642
Change-Id: I09b8c5e37e7f7b08341e22ba01ccda21a916a4bc
2021-07-27 04:10:04 -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
75bbd0e1c1 Internal change
Only externally visible changes should be a few changed includes as well as
some formatting changes.

PiperOrigin-RevId: 353226662
Change-Id: Iebf5be13774efcbd94c5d5a17b9b27e47275b229
2021-01-22 06:01:34 -08:00
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
451c24c1c4 Fix fd leak
Support swapping and move assignment in FDCloser

PiperOrigin-RevId: 351119550
Change-Id: I9865d2fcad029a440cab60328b8731f8e1dc340f
2021-01-11 03:33:27 -08:00
Anton D. Kachalov
d0c8224e61 Add support for ARM32 (hard float target)
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
2020-12-16 09:18:25 -08:00
Anton D. Kachalov
0e8d16e011 Enable shared libraries build and cross-compilation
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
2020-12-14 09:16:14 -08:00
Christian Blichmann
c3ac45be3e Reimplement raw logging to avoid Abseil internals
The defined raw logging macros should be compatible with Abseil and
we can remove our version once Abseil releases theirs.

PiperOrigin-RevId: 347354273
Change-Id: I178a89cfd2e19bcd707a06fa9dfd7b767e2b654b
2020-12-14 03:34:02 -08:00
Wiktor Garbacz
742fafa433 Prefixed (unique) names for executables in cmake
PiperOrigin-RevId: 347335966
Change-Id: Ic8cc22b882fa489d37b636406a1a5fe51745d808
2020-12-14 01:13:31 -08:00
Wiktor Garbacz
81a68382d8 Use file helpers in minielf_test
PiperOrigin-RevId: 346949861
Change-Id: Ib323a9ecd8fd8f268f09b028d13b220d3d8b60d1
2020-12-11 00:48:23 -08:00
Kevin Hamacher
510b5079ed Internal Change
PiperOrigin-RevId: 343296855
Change-Id: I995fa76f306fca8524a187f7fd1cbc498a92a885
2020-11-19 08:37:41 -08:00
Sandboxed API Team
834d356bce Cleans up statusor.h includes.
PiperOrigin-RevId: 337370254
Change-Id: Ibcbc2921f96d32675720ddc7adb621dd53894dfa
2020-10-15 13:25:30 -07:00
Christian Blichmann
fdf0483ca0 Migrate to open-source absl::StatusOr<>
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
2020-09-03 07:40:48 -07:00
Sandboxed API Team
23da55c19a Internal BUILD refactoring
PiperOrigin-RevId: 329720214
Change-Id: I25fbb94dea17db3bdca6438d17508fa304d9706f
2020-09-03 07:40:33 -07:00
Sandboxed API Team
1c833d6f25 Internal cleanup migrating StatusOr.
PiperOrigin-RevId: 329304527
Change-Id: Id6c141272df54c4e165829d690f9f5b2e9ee90cc
2020-08-31 08:13:29 -07:00
Wiktor Garbacz
c53f2a900f Automated rollback of commit e7a195ce42.
PiperOrigin-RevId: 328918626
Change-Id: Iabe93ec7062ea6e750e4185e2b0b672a37111ee7
2020-08-28 04:49:41 -07:00
Sandboxed API Team
e7a195ce42 Automated rollback of commit 82c56775ef.
PiperOrigin-RevId: 328340042
Change-Id: Ib225f8012fb373c74e3f1b3e6201b2daca7da40b
2020-08-25 09:01:22 -07:00
Wiktor Garbacz
82c56775ef StatusOr cleanups
PiperOrigin-RevId: 328318284
Change-Id: I207570c0fee6797dbc8995d36ef2130b0bff28fa
2020-08-25 06:22:05 -07:00
Sandboxed API Team
8633f22185 Increase limit on symbol table size and section size.
PiperOrigin-RevId: 325215228
Change-Id: I2e6ca131d92d86e7aa0d5cc37a3507dce03db25f
2020-08-06 06:04:14 -07:00
Christian Blichmann
143e539d79 First MVP of a LibTooling based SAPI header generator
- 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>
2020-05-15 15:35:42 +02:00
Christian Blichmann
7ec20bd5d5 Update dependencies to latest versions
- Abseil (HEAD)
- Benchmark (HEAD)
- Google Flags (HEAD)
- Google Logging (HEAD)
- Google Test/Mock (HEAD)
- Protocol Buffers (3.11.4)

PiperOrigin-RevId: 309012925
Change-Id: I826846afb3f2c4e92180915796890fce6b5a1d6c
2020-04-29 06:45:44 -07:00
Christian Blichmann
496672c333 Cleanup calls to sapi::StatusOr<>::ValueOrDie()
PiperOrigin-RevId: 304398197
Change-Id: I85d09457a5e27f65c0792fe93aebbd8219801ef6
2020-04-02 07:42:45 -07:00
Christian Blichmann
f6c3db4c6e Replace sapi::Status with absl::Status
PiperOrigin-RevId: 297614681
Change-Id: I89fe1357a172ed4d28df6dd84b80fee364ce1c14
2020-02-27 09:24:12 -08:00
Christian Blichmann
5d81c822d8 Automated rollback of commit e56f562fe2.
PiperOrigin-RevId: 296178631
Change-Id: I0f871aeecd70e9d2f99c7d52d94c6043a1668325
2020-02-20 04:26:37 -08:00
Maciej Szawłowski
fc514451e0 Internal BUILD changes
PiperOrigin-RevId: 296174640
Change-Id: I94c8e36d76d6cbb2b9d65f35d8700018b62d3db1
2020-02-20 04:26:23 -08:00
Sandboxed API Team
e56f562fe2 Automated rollback of commit 4eede550e7.
PiperOrigin-RevId: 295946052
Change-Id: Ie8c23fe8eec99ab52245ae7f482f1e6b99ec010e
2020-02-19 05:19:15 -08:00
Christian Blichmann
4eede550e7 Prepare for upcoming changes in Abseil
- Move canonical errors into status.

PiperOrigin-RevId: 295941935
Change-Id: I9408d21b6d34239b0ef3f3cd24975f39f1405505
2020-02-19 04:43:29 -08:00
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
276b7efc92 Internal change.
PiperOrigin-RevId: 265057217
Change-Id: Id00c867b373dbe8c9112c23ef4b0300ed3ca9e5b
2019-08-23 08:08:51 -07:00
Christian Blichmann
b7cbc36071 Follow-up to 3c51348 fixing linker issues with gflags and glog
The temporary solution for binaries/tests that fully statically linked is to
link against `gflags` using `-Wl,--whole-archive`. This will no longer be
necessary, once Abseil ships with logging. Then we can (finally) use Abseil
flags and use a logging library that does not depend on a different flags
library.

PiperOrigin-RevId: 260705702
Change-Id: I8562faaff59f9c3e0e1d331186d2806d387438fb
2019-07-30 06:48:38 -07:00
Christian Blichmann
6d33c1f908 Add CMake options to exclude examples and tests from build
PiperOrigin-RevId: 258136393
Change-Id: Ifb2d7a24f93cd1d2782b4e4d6ac2c34a0d1c2bff
2019-07-15 04:42:58 -07:00
Christian Blichmann
301a265c95 Make bpf_helper visible to projects using SAPI
PiperOrigin-RevId: 255368910
Change-Id: I4f12e8d47fd747619a12d21a5be1c34d7f876b61
2019-06-27 03:43:31 -07:00
Christian Blichmann
24c3e34344 Implement a GetDataDependencyFilepath() for CMake (non-Bazel really).
This code assumes, like Bazel's runfiles that the data dependency to access
exists in the same sub-tree as the binary:

WORKSPACE
+- sandboxed_api/sandbox2/examples/crc4
                                   +- crc4bin
                                   +- crc4sandbox

The code requires the directory structure to exist, so that in the example
above, crc4sandbox can use
  GetDataDependencyFilepath("sandboxed_api/sandbox2/examples/crc4/crc4bin")

regardless of how it was called.

PiperOrigin-RevId: 251834480
Change-Id: I6470b62ce9b403297116481a0c17c070992f2e81
2019-06-06 05:44:32 -07:00
Sandboxed API Team
1b2b83676b Internal Change
PiperOrigin-RevId: 251637952
Change-Id: I532201ec1ba16a4cae71c671ffe2bd34e13a5391
2019-06-05 07:24:16 -07:00
Christian Blichmann
ffd4e1270a Internal change
PiperOrigin-RevId: 251590551
Change-Id: Ic69f8f5f798006c0d096357b7a746cdc4ce530a3
2019-06-05 00:26:14 -07:00
Christian Blichmann
719cd24933 Fix sandbox2 tests when run with CTest
This test runs, but fails due to a different problem:
  StackTraceTest.ForkEnterNsLibunwindDoesNotLeakFDs

PiperOrigin-RevId: 251218516
Change-Id: If06cdbcb71fad84ebd9d934ff173d7ef1a1eebc0
2019-06-03 06:27:59 -07:00
Christian Blichmann
5f3c7171b7 Use Abseil's flag library released in aa468ad75539619b47979911297efbb629c52e44
PiperOrigin-RevId: 247424939
Change-Id: I22a4696f705f9dcfa7394b329c78bd126f42bd16
2019-05-09 07:57:55 -07:00
Christian Blichmann
7800fd7402 Disable compiler warnings for consistency with internal settings.
PiperOrigin-RevId: 247405215
Change-Id: I236170f7b47d9ecd32324db907ef7afc2e797d9a
2019-05-09 05:21:34 -07:00
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
Wiktor Garbacz
6cbaaead8b Make StatusMatcher more flexible
PiperOrigin-RevId: 244879203
Change-Id: I5f7994130a898e84f041b18c0b5313d7e8b32780
2019-04-23 10:30:45 -07:00
Kevin Hamacher
8ad4fcd0a8 minielf: Increase maximum amount of symbols loaded
PiperOrigin-RevId: 243775723
Change-Id: I5398ec23bd76be01c48c69bd4decb015a48386fc
2019-04-16 03:00:28 -07:00
Kevin Hamacher
ac6a5dfc85 Delete copy constructor of FDCloser
PiperOrigin-RevId: 243263443
Change-Id: If22d287ce1872ad070454824e8daa36585ab0258
2019-04-12 07:54:31 -07:00
Christian Blichmann
f04be9276f Formatting fixes and include file hygiene.
PiperOrigin-RevId: 240346890
Change-Id: I1a9617f10a62a848b6314a6196512e016ae02643
2019-03-26 07:54:21 -07:00
Christian Blichmann
cb36b974eb Improve internal<->external code transforms #2
PiperOrigin-RevId: 239221234
Change-Id: I5b50ed6472df894c43310addb9d8e8ca35b2c822
2019-03-19 10:38:52 -07:00
Sandboxed API Team
5aa13876a4 Formatting fixes.
PiperOrigin-RevId: 239159980
Change-Id: Ic6185368392622bf3f4c661e37f6b9fcca0d60a6
2019-03-19 03:41:32 -07:00
Christian Blichmann
177b969e8c
Sandboxed API OSS release.
PiperOrigin-RevId: 238996664
Change-Id: I9646527e2be68ee0b6b371572b7aafe967102e57

Signed-off-by: Christian Blichmann <cblichmann@google.com>
2019-03-18 19:00:48 +01:00