Add userspace utils for Structs and maps, starting with PERF_EVENT_ARRAY

[r41k0u]

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[Copilot]

Pull Request Overview

Introduce userspace utilities for struct parsing and map helpers, and add first-class support for PERF_EVENT_ARRAY along with a higher-level BpfObject entry point.

• Add BpfObject to manage loading, programs, and maps; refactor BpfProgram/BpfMap to be owned by BpfObject
• Add StructParser and Python IR-to-ctypes conversion; add PerfEventArray wrapper with optional automatic struct parsing
• Update Python bindings, wrappers, packaging metadata, and basic test

Reviewed Changes

Copilot reviewed 21 out of 22 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
tests/test_basic.py	Update version to 0.0.6 and use new BpfObject API in test
src/utils/struct_parser.h/.cpp	Add StructParser to parse bytes into ctypes-based Python structs
src/maps/perf_event_array.h/.cpp	Add PerfEventArray wrapper over libbpf perf_buffer with optional struct parsing
src/core/bpf_program.h/.cpp	Refactor to be owned by BpfObject; update attach/detach lifecycle
src/core/bpf_object.h/.cpp	New BpfObject that loads the object, manages program/map caches, and provides lookup APIs
src/core/bpf_map.h/.cpp	Refactor BpfMap to be owned by BpfObject; modernize key/value conversions and iteration
src/core/bpf_exception.h	Minor formatting cleanup
src/bindings/main.cpp	Expose new/updated classes and methods via pybind11
setup.py	Package as a module package; update repo URL and dependencies
pyproject.toml	Bump version to 0.0.6; add llvmlite dependency and repo URLs
pylibbpf/wrappers.py	Python helper wrappers for maps (PerfEventArray) and BpfObject
pylibbpf/ir_to_ctypes.py	Convert PythonBPF struct IR to ctypes; helper utilities
pylibbpf/init.py	High-level Python API surface and auto-conversion of structs
examples/execve.py	Minor import cleanup
CMakeLists.txt	Enable C++20; include new sources in the build
.github/workflows/pip.yml	Run Python in isolated mode for import and pytest

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[r41k0u]

LGTM