Add Compiler Condition to use inline assembly optimizations with ARM64 for Compatibility with MSVC (#17671) https://github.com/protocolbuffers/protobuf/issues/17665 **Problem** `google\protobuf\parse_context.h(721,10): error C2059: syntax error: ':'` `google\protobuf\parse_context.h(898,14): error C3861: 'Ubfx7': identifier not found` The latest protobuf versions fail to compile with MSVC on Windows ARM64 architecture. > Inline assembly is only available for x86 targets. For similar functionality in x64 or ARM64 code, use [compiler intrinsics](https://learn.microsoft.com/en-us/cpp/intrinsics/compiler-intrinsics?view=msvc-170). https://learn.microsoft.com/en-us/cpp/assembler/inline/writing-functions-with-inline-assembly?view=msvc-170 **Solution** As inline assembly for win ARM64 with MSVC as a compiler is not supported (even ARM specific assembly functions), a term has been added to the conditions in parse_context.h to prevent the assembly optimizations for arm64 from executing if the compiler is MSVC. Tested by compiling protobuf with MSVC on Windows ARM64 and AMD64 architecture. Compilation was a success. Closes #17671 COPYBARA_INTEGRATE_REVIEW=https://github.com/protocolbuffers/protobuf/pull/17671 from dsmith111:smithdavi/msvc-compatibility-patch 765f8c8e7c5984546b3da9e6251d919579319604 PiperOrigin-RevId: 663262760
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Protocol Buffers (a.k.a., protobuf) are Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data. You can learn more about it in protobuf's documentation.
This README file contains protobuf installation instructions. To install protobuf, you need to install the protocol compiler (used to compile .proto files) and the protobuf runtime for your chosen programming language.
Most users will find working from supported releases to be the easiest path.
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In the downloads section of each release, you can find pre-built binaries in zip packages: protoc-$VERSION-$PLATFORM.zip. It contains the protoc binary as well as a set of standard .proto files distributed along with protobuf.
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If you would like to build protoc binary from source, see the C++ Installation Instructions.
Protobuf supports several different programming languages. For each programming language, you can find instructions in the corresponding source directory about how to install protobuf runtime for that specific language:
| Language | Source |
|---|---|
| C++ (include C++ runtime and protoc) | src |
| Java | java |
| Python | python |
| Objective-C | objectivec |
| C# | csharp |
| Ruby | ruby |
| Go | protocolbuffers/protobuf-go |
| PHP | php |
| Dart | dart-lang/protobuf |
| JavaScript | protocolbuffers/protobuf-javascript |
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