# LGCooci/KCObjc4_debug

🌈可编译苹果官方源码objc！现在有objc4底层源码,以及libmalloc等可编译版本，大家可以自由LLDB调试！

Repository: https://github.com/LGCooci/KCObjc4_debug
Canonical: https://ross.abutalabs.com/products/kcobjc4_debug
Language: C
License: MIT
License Family: permissive
Topics: objc, objc4, objc4-779, objc4-781, objc4-runtime, objc4-750, objc-debug, malloc, libmalloc, libobjc, apple-source
Last push: 2022-12-05T10:37:12+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2521, "days_push": 1367, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1005, forks 314 (observed 2026-09-03T02:15:06.439957+00:00)

## What it is
A compilable build of Apple's official objc4 runtime source code (plus libmalloc) set up as an Xcode project so developers can step through and LLDB-debug the Objective-C runtime internals. It serves as a learning resource for exploring iOS/macOS底层 (low-level) runtime implementation.

## Use cases
- debug apple objc4 runtime source code with lldb
- compile apple open source objc4 in xcode
- learn objective-c runtime internals
- study how objc_msgSend and runtime work under the hood
- debug libmalloc memory allocation source
- explore ios底层原理 by stepping through source

## When to choose
- you want to LLDB-step through the actual Objective-C runtime source
- you're studying iOS/macOS底层原理 and runtime internals
- you need a pre-fixed, compilable objc4 project for a specific macOS/Xcode version

## When to avoid
- you need a production Objective-C runtime library
- you're not on macOS with Xcode
- you want a maintained library rather than a study snapshot

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: developer-tools, compiler
- domain: developer-tools, operating-systems, tutorials
- platform: cpp, c
- tags: objc4, objc-runtime, lldb-debugging, apple-open-source, libmalloc, ios-internals, xcode, debugging, macos

## Member repositories
- LGCooci/KCObjc4_debug (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:06.439957+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:13:05.912859+00:00, confidence not recorded.
  - readme: https://github.com/LGCooci/KCObjc4_debug (fetched 2026-09-03T02:15:06.439957+00:00, sha 07a73eb65b29)
- Data as of 2026-08-30T08:39:29.467469+00:00.