Mono Project

repository·main·Indexed 11 days ago

https://github.com/mono/mono

An open-source, cross-platform implementation of Microsoft's .NET Framework, providing a runtime and C# compiler based on ECMA standards for Linux, macOS, and Windows. Includes tools such as the mcs compiler, monodis disassembler, aprofutil for AOT profile inspection, and mono-symbolicate for stack trace processing.

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What's inside Mono

  1. Overview of Mono.Btls.Interface

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    The Mono.Btls.Interface assembly provides a way for test suites (such as xamarin/web-tests) to test components of the BTLS (Bouncy Castle TLS) implementation without exposing the internal details of System.dll.

    Warning: This assembly is intended for testing purposes and should not be considered a stable or maintained API for third-party production use.

  2. Overview of System.Threading.Tasks.Dataflow implementation

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    The System.Threading.Tasks.Dataflow assembly in Mono is an implementation taken directly from the MS CoreFx repository (specifically from commit 905a1940bcda0afdca2f14ceb2b0161ebc4d1d02).

    Note that while this assembly is included in Mono for backward compatibility with users who rely on it, it is not part of the standard .NET Framework and is typically distributed via NuGet in other .NET environments.

  3. Overview of the PEAPI component

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    PEAPI is a managed C# component designed to act as a PE (Portable Executable) writer. It provides a client-side API to programmatically construct program executable files. It is primarily used as a backend for compilers (such as Gardens Point Component Pascal .NET) to generate executables directly, serving as a high-performance alternative to generating textual CIL and invoking ilasm.
  4. Understand the purpose of the .NET Reference Source repository

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    The .NET Reference Source repository contains a subset of the Microsoft .NET Framework source code. It is intended to serve as a reference for the development of .NET Core and to provide the community with access to historical .NET Framework class library implementations.

    Important Constraints:

    • This repository is read-only.
    • It is not the primary development target for .NET; instead, it is a reference point.
    • For any questions, bug reports, or pull requests, you must use the .NET Core (corefx) repository.
  5. Use aprofutil to inspect AOT profiler files

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    aprofutil is a command-line tool used to inspect and filter .aotprofile files generated by Mono's AOT Profiler. It converts the profiler data into a human-readable text format, allowing you to view modules, types, and methods used during execution.

    mono aprofutil.exe [OPTIONS] <aotprofile-file>
  6. Format of ARM64 CPU description files

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    The ARM64 CPU description file is used by genmdesc to generate a table of CPU instructions. These instructions are utilized by the register allocator, the scheduler, and other architecture-dependent components of the mini system.

    Each entry follows this syntax: opcode_name: specifier1 specifier2 ...

    Specifiers are separated by whitespace and follow the format name:value.

  7. Format of LoongArch64 CPU description files

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    The cpu-loongarch64.md file is a description file used by genmdesc to generate a table of CPU instructions. This table provides critical information for the register allocator, scheduler, and other architecture-dependent components of the mini platform.

    Each entry follows this syntax:

    • Opcode Name: Followed by a colon and optional specifiers.
    • Specifiers: A name, a colon, and a value (e.g., dest:f). Specifiers are separated by whitespace.

    Common specifier keys include:

    • dest: Destination register/operand.
    • src1, src2: Source registers/operands.
    • len: The length of the instruction.
    • clob: Registers clobbered by the instruction.
    • b: Base address/pointer type.
    • i: Integer type.
    • f: Floating-point type.
    • l: Long integer type.
    • u: Unsigned type.
  8. Format of the PowerPC CPU description file

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    The PowerPC CPU description file is used by genmdesc to generate a table containing instruction information for the register allocator, scheduler, and other architecture-dependent components of mini.

    Each entry follows this syntax: opcode_name: specifier1:value1 specifier2:value2 ...

    Specifiers are separated by whitespace. An opcode name is followed by a colon and optional specifiers. A specifier consists of a name, a colon, and a value.

  9. Format of the ARM CPU description file

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    The cpu-arm.md file is a CPU description file used by genmdesc to generate a table of instruction information. This information is consumed by the register allocator, the scheduler, and other architecture-dependent components of the mini subsystem.

    Each entry follows this format:

    • Opcode Name: Followed by a colon.
    • Specifiers: Optional metadata separated by whitespace. A specifier consists of a name, a colon, and a value (e.g., dest:i).

    Valid Specifiers:

    • dest:register: Describes the destination register.
    • src1:register: Describes the first source register.
    • src2:register: Describes the second source register.
    • src3:register: Describes the third source register.
    • len:N: Specifies the length of the instruction.
    • clob:X: Specifies registers that are clobbered by the instruction.
  10. Format of the ARM64 CPU description file

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    The cpu-arm64.md file is a description file used by genmdesc to generate a table of CPU instructions. This information is consumed by the register allocator, the scheduler, and other architecture-dependent components of the mini engine.

    Each entry follows this format: opcode_name: [specifiers] len:[length] [clobbers]

    Specifiers

    Specifiers describe the operands of an instruction. A specifier consists of a name, a colon, and a value, separated by whitespace:

    • dest:register: Describes the destination register.
    • src1:register: Describes the first source register.
    • src2:register: Describes the second source register.
    • src3:register: Describes the third source register.
    • clob:register: Indicates a register that is clobbered (overwritten) by the instruction.
    • len:[value]: Specifies the length of the instruction in bytes.