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* Abseil LTS branch, Aug 2023, Patch 1 (#1534)20230802.1Gravatar Derek Mauro2023-09-18
| | | | | | | | | | | | | | | | | | | | * Add StdcppWaiter to the end of the list of waiter implementations Since ABSL_INTERNAL_HAVE_STDCPP_WAITER is defined on all systems it is effectively a fallback. I left the condition there in case we have to disable it on some platform in the future. PiperOrigin-RevId: 555629066 Change-Id: I76ca78c7f36d1d02dc4950a44c66903a2aaf2a52 * Use native methods to implement absl::base_internal::GetPID() on FreeBSD, NetBSD, and OpenBSD https://man.freebsd.org/cgi/man.cgi?query=pthread_getthreadid_np https://man.netbsd.org/_lwp_self.2 https://man.openbsd.org/getthrid.2 * Abseil LTS branch, Aug 2023, Patch 1 Bump ABSL_LTS_RELEASE_PATCH_LEVEL to 1
* Apply LTS transformations for 20230802 LTS branch (#1505)20230802.rc1Gravatar Derek Mauro2023-08-02
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* PR #1500: Define MAP_ANONYMOUS if not definedGravatar Ryan Schmidt2023-08-01
| | | | | | | | | | | | Included are additional automated edits by clang-format on import. Merge d74896699faacc4a1667603e52e72cbdc8006cf6 into 22091f4c0d6626b3ef40446ce3d4ccab19425ca3 Merging this change closes #1500 COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1500 from ryandesign:MAP_ANONYMOUS d74896699faacc4a1667603e52e72cbdc8006cf6 PiperOrigin-RevId: 552922776 Change-Id: I96a0395cb5e7156d7c7a889491c5d0b4cf755819
* InlinedVector: Fix control-flow-inregrity warning when using a classGravatar Derek Mauro2023-07-25
| | | | | | | | | | | | | | | | with a vtable The code is getting the pointer, then constructing it on the next line. Using reinterpret_cast on this pointer is legal according to https://clang.llvm.org/docs/ControlFlowIntegrity.html#bad-cast-checking, but it flags it anyway. The docs say it might be necessary for `allocate()`-type APIs, and recommends adding them to an ignorelist. Also note that std::addressof is removed. It is unnecessary since inlined_data is a char-array. PiperOrigin-RevId: 550972834 Change-Id: Ib224cec330bb6bcb770296de6c91881f404ef531
* Add Support for mmap on Qualcomm Hexagon DSP targets.Gravatar Abseil Team2023-07-17
| | | | | PiperOrigin-RevId: 548709037 Change-Id: I6eb03553299265660aa0abc180ae0f197a416ba4
* Use new emscripten_errn to avoid copying strings.Gravatar Abseil Team2023-07-13
| | | | | PiperOrigin-RevId: 547895328 Change-Id: If5da952604415fa6ed2402052f80add6c4b7dfb3
* Fix a typo of absl::Nonnull in the example comment.Gravatar Abseil Team2023-07-10
| | | | | PiperOrigin-RevId: 546897533 Change-Id: I3ad12f252c49e4672a64d00d0107111fdc5b6ac8
* Rename `absl::NonNull` to `absl::Nonnull`.Gravatar Abseil Team2023-07-06
| | | | | | | The current spelling is inconsistent with standard casing rules: "nonnull" is a single word, not two. PiperOrigin-RevId: 546034114 Change-Id: I04e5a204f4a74ebaa76031dd0b0874ca9cfa902c
* Correct std::optional/variant/any auto-detection for Apple platforms.Gravatar James Y Knight2023-07-06
| | | | | | | | | | | | | | | | | In Xcode 14.3, Apple modified the OS versions which support these three types to exclude iOS 11 and watchOS 4. Update abseil accordingly. Those versions of the OS did _not_ actually support the types, and any binaries which used these types, built with prior Xcode versions, would've crashed on startup on an actual iOS 11 or watchOS 4 device due to missing symbols. As of Xcode 14.3, using them is now, correctly, a build failure. This change also drops the conditionals for pre-Xcode 12.5, as that is no longer a supported version. PiperOrigin-RevId: 546005629 Change-Id: Ib0430307ac2ada4910f07c54cfd6e99db8ca1905
* Rolls back use of emscripten_errn as some implementations may not be compatible.Gravatar Abseil Team2023-06-30
| | | | | PiperOrigin-RevId: 544677169 Change-Id: I98874c5c8d1c9a057958b63e2b3c4fdd5daccd39
* Use new emscripten_errn to avoid copying strings.Gravatar Abseil Team2023-06-29
| | | | | PiperOrigin-RevId: 544461113 Change-Id: Iafbd6daf2d03ae18a49ea449315ee7cd6a0e615e
* Support Qualcomm Hexagon DSP targets.Gravatar Abseil Team2023-06-29
| | | | | PiperOrigin-RevId: 544438364 Change-Id: I22d461f2d0aa8638a0e640eebecdc7e5e2b49ea3
* Wrap the Emscripten version macros into an (internal) macro blob for easier ↵Gravatar Andy Getzendanner2023-06-28
| | | | | | | comparison. PiperOrigin-RevId: 544197983 Change-Id: I7eb39563e696d6561ad193d4d25b4161eb6419ae
* Add absl::HwasanTagPointer() to allow users to change HWASAN tagsGravatar Abseil Team2023-06-23
| | | | | | | It's NOOP without HWASAN. PiperOrigin-RevId: 543045322 Change-Id: Ibb5f28d316bfc5e8aa51861fd55e50ecb517a9a3
* absl: reformat Mutex-related filesGravatar Abseil Team2023-06-20
| | | | | | | | | | | Reformat Mutex-related files so that incremental formatting changes don't distract during review of logical changes. These files are subtle and any unnecessary diffs make reviews harder. No changes besides running clang-format. PiperOrigin-RevId: 541981737 Change-Id: I41cccb7a97158c78d17adaff6fe553c2c9c2b9ed
* Add Nullability annotations to Abseil.Gravatar Abseil Team2023-06-20
| | | | | PiperOrigin-RevId: 541915097 Change-Id: I7ebfbafc36db38b59b30ab5b312cd7e22082a805
* Rename AsyncSignalSafeWriteToStderr to AsyncSignalSafeWriteError.Gravatar Abseil Team2023-06-15
| | | | | | | It no longer strictly writes to stderr, since Emscripten/WebAssembly now use _emscripten_err which might be replaced by something that is not the same as stderr by the host. PiperOrigin-RevId: 540655336 Change-Id: Icc2a430a0db53a1282ef5558e9f3648db67e972c
* For web assembly, implement raw logging as direct JS console logging.Gravatar Abseil Team2023-06-14
| | | | | | | This bypasses the need for filesystem APIs just for stderr access. PiperOrigin-RevId: 540367155 Change-Id: Ib91dadac28cb5c8e571407b5dfa60c3e65539c95
* Merge pull request #1475 from anpol:placement-new-array-needs-more-spaceGravatar Copybara-Service2023-06-12
|\ | | | | | | | | PiperOrigin-RevId: 539747818 Change-Id: Ia0ab0fdda0ffe9b23d83d55c899f301df20b1179
* | DirectMmap: Use off_t instead of off64_t for the offset parameterGravatar Derek Mauro2023-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | off_t is best for portability. Its size varies with the platform. off64_t is non-standard, but is present in glibc and some BSDs. It also matches the signature specified in the manual. https://man7.org/linux/man-pages/man2/mmap.2.html This is a re-spin of #1349, but correctly casts the type to the type expected by the kernel for mmap2. https://man7.org/linux/man-pages/man2/mmap2.2.html Fixes #1473 PiperOrigin-RevId: 539656313 Change-Id: I7a30dd9d3eb6af03a99da0d93d721a86f6521b25
| * Fix buffer overflow in a placement `new[]` storage test.Gravatar Andrei Polushin2023-06-12
|/ | | | | | | | AppleClang seem to allocate two extra 64-bit words per each `new[]`. A test should pass larger buffer to a placement `new[]`. Fixes #1090
* Implement GetTID for NACL platform.Gravatar Abseil Team2023-06-09
| | | | | | | in NACL pthread_self() returns a pointer that isn't directly convertible to arithmetic type. PiperOrigin-RevId: 539023020 Change-Id: I3745ec5565f3a99ccb1d9df12c27a80e57ca4755
* Merge pull request #1471 from wenshan1:blan-add-VxWorks-supportGravatar Copybara-Service2023-06-08
|\ | | | | | | | | PiperOrigin-RevId: 538778978 Change-Id: I0c04b09987eb4d97892825e3c994656d4e300f60
| * Add VxWorks supportGravatar Bin Lan2023-06-08
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* | Merge pull request #1458 from juergbi:aixGravatar Copybara-Service2023-06-07
|\ \ | |/ |/| | | | | PiperOrigin-RevId: 538488164 Change-Id: I680dcbc2f27dca3beba416b3cd0a55943751cf4c
* | Switch from perror to ABSL_INTERNAL_LOG.Gravatar Abseil Team2023-05-31
| | | | | | | | | | | | | | Motivation is for WebAssembly to avoid perror which in turn requires file system emulation. PiperOrigin-RevId: 536737294 Change-Id: I5177064c9451fb630ec5e9d0c0a0679fabd98afa
* | Implement a better GetTID on Apple platforms, and a better fallback too.Gravatar Andy Getzendanner2023-05-25
| | | | | | | | | | | | | | The fallback isn't totally portable, even within POSIX, but we can special case any future platforms where it's not just like this change does for Apple. PiperOrigin-RevId: 535324103 Change-Id: Ib628925c4946b6c112373678fe37e9bb44259090
* | Note that AsyncSignalSafeWriteToStderr preserves errno, and inline one use ↵Gravatar Andy Getzendanner2023-05-25
| | | | | | | | | | | | | | of it into a lambda. PiperOrigin-RevId: 535245982 Change-Id: I816f60c8b6476536df6836500f01c9a3ad88ddd4
* | fill ABSL_INTERNAL_(DISABLE|RESTORE)_DEPRECATED_DECLARATION_WARNING macro ↵Gravatar Abseil Team2023-05-24
| | | | | | | | | | | | | | for clang PiperOrigin-RevId: 534824761 Change-Id: I0ab78fcb211bc5df756fb581761ed8febc3d18fd
| * absl/base: Fix build on AIXGravatar Jürg Billeter2023-05-24
|/ | | | | | | | The AIX assembler doesn't support numeric labels. Use a relative jump instead to fix Assembler: /tmp/ccw16WCt.s: line 25: Error In Syntax
* Add compiler deprecation warnings for absl::ConvertDateTime() and ↵Gravatar Derek Mauro2023-05-17
| | | | | | | | | | | | | | absl::FromDateTime(). These have been marked deprecated in the comments for some time, (since f340f773edab951656b19b6f1a77c964a78ec4c2) but the warnings were never enabled. A warning suppression is enabled for Abseil code so that when we declare types in our code, we don't get a warning. PiperOrigin-RevId: 532891102 Change-Id: Ife0c5696a061ea44769e02869e4e3d1196e86f9d
* Merge pull request #1434 from Vertexwahn:fix-spellingGravatar Copybara-Service2023-04-25
|\ | | | | | | | | PiperOrigin-RevId: 527066823 Change-Id: Ifa1e9a43c7490b34f9f4dbfa12d3acbed6b49777
| * Fix some spelling mistakesGravatar Vertexwahn2023-04-24
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* Unify std type detection now that older compilers are no longer supportedGravatar Derek Mauro2023-04-19
| | | | | PiperOrigin-RevId: 525462751 Change-Id: Ibd6202cb95e79a48a6b39ccc4b74ead04128eb91
* Add ABSL_RAW_DLOG and ABSL_RAW_DCHECK macrosGravatar Martijn Vels2023-04-18
| | | | | PiperOrigin-RevId: 525241200 Change-Id: I8d1536cb813da8b80a978340343b0243a49928f7
* Replace absl::type_traits_internal::is_trivially_copyable withGravatar Derek Mauro2023-04-12
| | | | | | | std::is_trivially_copyable PiperOrigin-RevId: 523724345 Change-Id: Id68c79c3bbb253d892bdef4659ac8a926e023d12
* Name anonymous memory allocations on Linux.Gravatar Abseil Team2023-04-12
| | | | | | | | | | | | | | | | | | | Use Linux's prctl(PR_SET_VMA) system call to name memory arenas being allocated using mmap(MAP_ANONYMOUS). This change allows Abseil's memory arena(s) to be distinguished from other uses of anonymous memory within a process, which in turn helps investigations into the memory usage of applications. The change adds a new prctl() system call to the code paths that call mmap(). This is not expected to add significant overhead to applications. The call to prctl(PR_SET_VMA, ...) can fail if the Linux kernel in use was not configured with the CONFIG_ANON_VMA_NAME kernel option. This should be OK since the naming memory regions is primarily a debugging aid. PiperOrigin-RevId: 523687348 Change-Id: Ie404e5eeef0a6da53330b3a56149c4f3bc6bf5c7
* Extend ABSL_ATTRIBUTE_NO_SANITIZE_ADDRESS to support HWASANGravatar Abseil Team2023-04-10
| | | | | PiperOrigin-RevId: 523220096 Change-Id: Iaffea2c9c4d112839ca8c2c7f130f72c3d7cc35b
* Raise the MSVC floor to MSVC 2019 (16.0) in accordance withGravatar Derek Mauro2023-04-03
| | | | | | | https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md PiperOrigin-RevId: 521573177 Change-Id: I1f12ddbd8516314ee2ed7f8ba6a6895b03c6c270
* Make `ABSL_ATTRIBUTE_NO_UNIQUE_ADDRESS` work on MSVCGravatar Derek Mauro2023-03-23
| | | | | | | | | | | | https://devblogs.microsoft.com/cppblog/msvc-cpp20-and-the-std-cpp20-switch/#c20-no_unique_address MSVC disables [[no_unique_address]] by default because of ABI compatibility. Since Abseil does not claim ABI compatibility in mixed-mode builds, we can offer it unconditionally. Fixes #1418 PiperOrigin-RevId: 518894036 Change-Id: If7653e65703b335783f11d296de7e32fc35d4fc6
* Add an implementation of Waiter that uses std::mutex/std::condition_variableGravatar Derek Mauro2023-03-21
| | | | | | | | | | | | | | | This implementation may at some point become the default on some platforms. Currently not all platforms have widespread support for both real absolute timeouts or real relative timeouts (here "real" means without converting to the other timeout type which is the only one supported by the underlying APIs). In this case we can defer to their standard library to implement correct support. This is not currently the default on any platform Note: The size of WaiterState had to increase to fit the new implementation PiperOrigin-RevId: 518266646 Change-Id: I7f246646a960d6e1b155f9de0bf2f681c5d3d245
* Add `ABSL_UNREACHABLE()` to `ABSL_RAW_LOG` when severity is `FATAL`Gravatar Wiktor Garbacz2023-03-20
| | | | | | | Also makes `ABSL_INTERNAL_LOG(LEVEL(x), "oops")` not call unreachable (even when x == kFatal) for consistency. PiperOrigin-RevId: 517894304 Change-Id: I798b1032d126330ace1e2b48edd8fc547a2ad2f8
* Define ABSL_HAVE_DATAFLOW_SANITIZERGravatar Dave MacLachlan2023-03-16
| | | | | PiperOrigin-RevId: 517142676 Change-Id: If50a1bf5f92da166d6b4923110ec8b25446b6b11
* Avoid uninitialized value in call_once implementation.Gravatar Henner Zeller2023-03-15
| | | | | | | | | | | | | There is a path in which the guard_result_ member is not initialized; this is benign as the code makes sure that it only accesses an initialized state. Static analysis tools (such as clang-tidy) might not see that however, so to make them happy, initialize that value. PiperOrigin-RevId: 516876319 Change-Id: I1bd2e97ad9e1daaa1397f306df993de13f7e684e
* Add ABSL_ATTRIBUTE_NO_UNIQUE_ADDRESS helper.Gravatar Chris Kennelly2023-03-13
| | | | | PiperOrigin-RevId: 516245113 Change-Id: Idaef538c9392decbfdeb3ed3b3c109c795f92f4d
* Add note about using `CurrentThreadIdentityIfPresent()` on darwin based ↵Gravatar Dave MacLachlan2023-03-09
| | | | | | | platforms. PiperOrigin-RevId: 515353041 Change-Id: I2c88022d50a3351f70d09a2d63020470889752d9
* Delete the `Throw()` function from `absl::base_internal`.Gravatar Devin Jeanpierre2023-03-01
| | | | | | | This was originally added in order to centralize the ifdefs, in cl/164484905. However, cl/337142938 undid this aspect of the change, because it broke on Android. What is left is vestigial: `Throw()` can be deleted at no loss, with a warning that should discourage us from ever reintroducing it. PiperOrigin-RevId: 513391041 Change-Id: I1608a2007eb26ee95df07f3b4b1672c034743832
* Fix //absl/{base,debugging:symbolize} build with MingwGravatar Abseil Team2023-02-28
| | | | | PiperOrigin-RevId: 512974770 Change-Id: If7a8128996d2a73ac566faaa676ddd3858d51af6
* Remove backfills of some type traits that are now fully supportedGravatar Derek Mauro2023-02-27
| | | | | PiperOrigin-RevId: 512622121 Change-Id: If90aaf7939062bd475253c372d9d7950c98c7150
* Update the predicate for `ABSL_INTERNAL_HAS_RTTI` for Windows builds.Gravatar Abseil Team2023-02-24
| | | | | | | | | | | | | | | | | | | Abseil defines `ABSL_INTERNAL_HAS_RTTI` by: ``` !defined(__GNUC__) || defined(__GXX_RTTI) ``` This predicate correctly decides rtti for GNU platforms. This predicate is always true for non-GNU platforms. It is not true that rtti is always enabled for non-GNU platforms. For example, when building with `cl.exe` and disabling rtti with `\GR-`, this clause is true. This leads to errors in Windows builds that disable rtti. This default behavior is not decidably correct, but the default behavior shouldn't change. It is better to guess that rtti is on, because if rtti is actually off, compilation will fail, and no programs will be harmed. This change updates the non-default behavior to include a check for rtti on Windows platforms. This change preserves the default behavior. PiperOrigin-RevId: 512085922 Change-Id: I1add0b9b8ca2de5d1313c8aed5ba2019632ab68a
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