asmjit/asmjit
Asmjit
AsmJit es un generador de código máquina en tiempo de ejecución y backend de compilador JIT que traduce definiciones de alto nivel en instrucciones ejecutables para el procesador. Proporciona una API unificada de emisión de instrucciones y un gestor de memoria ejecutable para asignar y proteger páginas de memoria virtual a través de múltiples arquitecturas de CPU.
La biblioteca funciona como un motor de ensamblador para x86 y ARM, soportando la generación de ensamblador multiplataforma a través de un backend unificado. Permite la creación de código máquina optimizado para diferentes CPUs manteniendo un único código base.
El proyecto cubre abstracciones de sistema de bajo nivel, incluyendo asignación de registros, convenciones de llamada específicas de la arquitectura e instrumentación binaria dinámica. Gestiona la traducción de representaciones intermedias a código binario utilizando resolución de desplazamiento basada en etiquetas y emisión directa a búfer.
Features
- Just-In-Time Compilation - Translates high-level logic into optimized x86 and AArch64 machine code during application execution.
- Memory Protection Managers - Provides a cross-platform interface for allocating and protecting virtual memory pages for dynamic code.
- Runtime Assemblers - Implements an assembly engine that produces target-specific binary code and manages CPU register allocation.
- Instruction Emission APIs - Ships a universal interface for generating SIMD and general-purpose instructions with target-specific performance overrides.
- JIT Compiler Backends - Provides a low-latency library for generating x86 and AArch64 machine code at runtime.
- Machine Code Generation - Creates and executes processor instructions during program execution for high performance and low latency.
- Cross-Architecture Code Generators - Produces optimized machine code for multiple CPU architectures from a single unified API.
- Machine Code Generators - Translates high-level function definitions into executable processor instructions for multiple architectures.
- Dual-Mapped Memory Allocation - Implements dual-mapped memory allocation to comply with operating system security restrictions on executable pages.
- Binary Instrumentation - Enables generating and modifying executable code sequences at runtime to insert probes or optimize hot paths.
- Intermediate Representations - Uses a mutable linked-list intermediate representation to allow code reordering and modification before binary emission.
- Direct-to-Binary Emission - Writes machine instructions directly into executable memory regions to minimize latency during runtime generation.
- Calling Conventions - Provides low-level mechanisms for managing stack frames and argument passing for different processor architectures.
- Virtual Register Allocation - Maps abstract virtual registers to physical hardware registers to optimize resource use and execution speed.
- Symbolic Offset Resolution - Calculates final memory addresses for jumps and calls by resolving symbolic labels against the assembled code buffer.
- Cross-Platform Abstractions - Implements a unified interface to translate universal instructions into target-specific machine code for x86 and AArch64.
- Compiler Backends - JIT and remote assembler for C++.
- General Utilities - Low-latency machine code generation library.
