libffi/libffi
Libffi
libffi este o bibliotecă de tip foreign function interface (FFI) care permite apelarea funcțiilor scrise în alte limbaje la runtime. Servește drept wrapper ABI multi-arhitectură și generator dinamic de call frame-uri, permițând execuția funcțiilor externe pe baza descrierilor de runtime ale tipurilor de argumente și valorilor returnate.
Proiectul oferă o interfață portabilă pentru a gestiona convenții de apelare diverse pe diferite arhitecturi hardware și sisteme de operare. Include capabilități pentru alocarea de closure-uri executabile, care permit codului extern să declanșeze callback-uri în interiorul unui limbaj gazdă prin jump tables stocate în memorie executabilă.
Dincolo de invocarea funcțiilor, biblioteca gestionează stub-uri de asamblare de nivel jos și utilizează caching pentru planurile de apelare, reducând overhead-ul mapării tipurilor către registre. Include, de asemenea, un convertor de scripturi de versiune binară pentru transformarea scripturilor de versiune bazate pe simboluri între diferite formate de linker.
Features
- Foreign Function Interfaces - Provides a foreign function interface to call functions in other languages by dynamically constructing call frames.
- Dynamic Call Frame Construction - Constructs function call stacks at runtime by arranging arguments in memory according to hardware calling conventions.
- Assembly Stubs - Provides low-level assembly stubs to bridge generic function calls to hardware-specific register and stack layouts.
- Multi-Architecture ABI Wrappers - Wraps diverse calling conventions across multiple hardware architectures and operating systems.
- Calling Convention Abstractions - Supports various calling conventions like stdcall, thiscall, and fastcall across different hardware architectures.
- Dynamic Call Frame Generators - Generates function call frames at runtime based on dynamic descriptions of argument and return types.
- Language Interoperability - Enables execution of code across different programming languages using a portable interface for various calling conventions.
- Portable Function Invocations - Executes compiled functions regardless of the target hardware calling convention through a portable interface.
- Executable Memory Allocations - Allocates memory regions with execution permissions to store jump tables for redirecting foreign calls.
- Function-Pointer Callbacks - Creates executable closures that allow native libraries to trigger logic and functions within the host language.
- Executable Closure Allocations - Allocates memory with execution permissions to create function closures for external callbacks.
- Executable Closure Providers - Generates executable closures that allow external programs to trigger callbacks within the host language via jump tables.
- Call Plan Caches - Caches pre-calculated argument layouts to reduce the overhead of mapping types to registers for frequent calls.
- General Libraries - Portable foreign-function interface library for C.
- Biblioteci de uz general - Portable foreign-function interface library.
- Scripting and Bindings - Portable library for implementing foreign function interfaces.
