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03/04: deep enrichment of loader/exec format and linking/libraries

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Sections 03 and 04 augmented to bootcamp quality with targeted
enrichment based on content analysis (not just file size).

03_loader_and_exec_format:
- overlay_system.md: full rewrite — tree architecture diagram,
  HUNK_OVERLAY binary format, overlay manager runtime internals,
  worked binary example, linker support, modern alternatives
- hunk_relocation.md: full rewrite — visual before/after diagram,
  patching algorithm with code, RELOC32SHORT and DREL32 formats,
  PC-relative impact comparison table, self-referencing relocs,
  error scenarios, Python reloc scanner tool

04_linking_and_libraries:
- library_structure.md: full rewrite — ASCII memory layout diagram,
  JMP table encoding (why 6 bytes), MakeLibrary internals with both
  function array formats, complete library creation example with
  .fd file, checksum verification, lifecycle state diagram
- shared_libraries_runtime.md: full rewrite — OpenLibrary 4-step
  resolution path, ramlib disk loader internals, disk search path,
  version negotiation table (v33-v47), CloseLibrary/Expunge deep
  dive, memory-low sweep, common pitfalls table
- register_conventions.md: full rewrite — FPU register map,
  inter-library A6 save/restore pattern, small-data model with
  __saveds keyword, varargs/TagItem pattern deep dive,
  stack-based wrapper explanation, disassembly identification

Updated indexes:
- 03_loader_and_exec_format/README.md
- 04_linking_and_libraries/README.md
- Root README.md (sections 03 and 04)
This commit is contained in:
Ilia Sharin 2026-04-23 18:30:45 -04:00
parent 99a6d53f57
commit 7df1f11f15
8 changed files with 1556 additions and 360 deletions
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03_loader_and_exec_format/README.md
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@ -15,13 +15,13 @@ This section covers the complete lifecycle of an AmigaOS executable:
| File | Topic |
|---|---|
| [hunk_format.md](hunk_format.md) | Complete HUNK binary specification |
| [hunk_ext_deep_dive.md](hunk_ext_deep_dive.md) | HUNK_EXT: exports, imports, commons |
| [hunk_relocation.md](hunk_relocation.md) | HUNK_RELOC32/16/8 mechanics |
| [hunk_debug_info.md](hunk_debug_info.md) | HUNK_SYMBOL, HUNK_DEBUG (stabs) |
| [exe_load_pipeline.md](exe_load_pipeline.md) | LoadSeg → Process creation |
| [object_file_format.md](object_file_format.md) | Compiler object files (HUNK_UNIT) |
| [overlay_system.md](overlay_system.md) | HUNK_OVERLAY memory segmentation |
| [hunk_format.md](hunk_format.md) | Complete HUNK binary specification — all 22 hunk type codes with wire format, memory flags, advisory bits |
| [hunk_ext_deep_dive.md](hunk_ext_deep_dive.md) | HUNK_EXT: exports (EXT_DEF), imports (EXT_REF32), commons, linker resolution |
| [hunk_relocation.md](hunk_relocation.md) | Relocation mechanics: visual before/after, patching algorithm, RELOC32/SHORT/DREL32, PC-relative impact |
| [hunk_debug_info.md](hunk_debug_info.md) | HUNK_SYMBOL and HUNK_DEBUG: stabs format (SAS/C, GCC), debugger consumption, stripping |
| [exe_load_pipeline.md](exe_load_pipeline.md) | LoadSeg → AllocMem → relocation → segment chain → CreateProc → entry point |
| [object_file_format.md](object_file_format.md) | Compiler object files (HUNK_UNIT), multi-section layout, HUNK_LIB archives, linker operation |
| [overlay_system.md](overlay_system.md) | HUNK_OVERLAY: tree architecture, runtime overlay manager, worked binary example, modern alternatives |
## Why HUNK?