marfrit/rk3588-ddr-analysis
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historical_blobs: v1.16..v1.18 snapshots + byte-divergence analysis

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Extracted from rkbin git (using git show <add-commit>:<path> since
each version-update commit deletes the previous binary). Sits here
so future runs don't need to re-extract.

Byte-diff analysis: v1.x → v1.(x+1) differs in ~88% of bytes. Every
release is a near-rewrite, not a patch. Consequence: cross-version
symbol porting tools (Polypyus, BinDiff) would match few functions
on this target. Function-level opcode-silhouette matching with
wildcards for branch targets may still work but needs Ghidra baseline
in each version, not a one-sided v1.19 annotation.

Polypyus attempted 2026-04-15 — blocked by Python 3.14 / pony 0.7
bytecode decompiler incompatibility (LOAD_FAST_BORROW + varname
table layout). Would need pyenv Python 3.11 venv, or switch to
BinDiff CLI (no Python dep). Deferred.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Markus Fritsche
2026-04-15 08:51:01 +02:00
parent be59c91707
commit 09c4a92432
5 changed files with 38 additions and 0 deletions
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historical_blobs/SHA256SUMS
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5aa6271195e422a2c30a8e801baa64e4a10cbc6a5f1963f9a29e6dc85096c7bf v1.16.bin
9e0095a52febfc0f57297dff71ecc82d1686b94d47be00c21391446fc6927f7a v1.17.bin
d89d40a8183b099589bfcffc5cc2ce9d874eb5b1d19b78bdad2cfcf45b9cb68f v1.18.bin
5aa6271195e422a2c30a8e801baa64e4a10cbc6a5f1963f9a29e6dc85096c7bf v1.16.bin
9e0095a52febfc0f57297dff71ecc82d1686b94d47be00c21391446fc6927f7a v1.17.bin
d89d40a8183b099589bfcffc5cc2ce9d874eb5b1d19b78bdad2cfcf45b9cb68f v1.18.bin