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docs: update bootstrapping diagram to include stage3 #101

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24 changes: 22 additions & 2 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -47,14 +47,32 @@
# │ ┌─────────┐ ┌──────────┐ ┌─────────┐ │
# │ │ ghc2 │ │ ghc-pkg2 │ │ ... │ │
# │ │ │ │ │ │ │ │
# │ └─────────┘ └──────────┘ └─────────┘ │
# │ (built with ghc1, linked with rts1) │
# │ └─────┬───┘ └──────────┘ └─────────┘ │
# │ │ (built with ghc1, linked with rts1) │
# │ │ │
# │ ·····│································································ │
# │ ▼ │
# │ Stage 3 (Cross-compilation) │
# │ │ │
# │ │ ┌─────────────────────────────────┐ │
# │ └────►│ target-specific libs (pkg3) │ │
# │ │ • javascript-unknown-ghcjs │ │
# │ │ • wasm32-unknown-wasi │ │
# │ │ • x86_64-musl-linux │ │
# │ │ • etc. │ │
# │ └─────────────────────────────────┘ │
# │ (built with ghc2 for different target platforms) │
# │ │
# │ ┌─────────────────────────────────┐ │
# │ │ SHIPPED RESULT │ │
# │ │ ┌─────────┐ ┌─────────┐ │ │
# │ │ │ pkg1 │ + │ ghc2 │ │ │
# │ │ └─────────┘ └─────────┘ │ │
# │ │ │ │
# │ │ Optional cross-compilation: │ │
# │ │ ┌─────────────────────────┐ │ │
# │ │ │ target-specific pkg3 │ │ │
# │ │ └─────────────────────────┘ │ │
# │ └─────────────────────────────────┘ │
# │ │
# │ Notes: │
Expand All @@ -65,6 +83,8 @@
# │ • ghc1 is linked against rts0, ghc2 against rts1 │
# | • augmented packages are needed because ghc1 may require newer |
# | versions or even new pacakges, not shipped with the boot compiler |
# │ • Stage 3 is optional: ghc2 builds libraries for cross-compilation │
# │ targets (different architectures/platforms) │
# │ │
# └─────────────────────────────────────────────────────────────────────────┘

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