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Duplicate auxdata in legacyAssembly

Open manuelwedler opened this issue 7 months ago • 0 comments

Description

In Sourcify, we use the legacyAssembly compiler output to find auxdata in the bytecode. We encountered a contract that has the same auxdata twice in the legacyAssembly but this auxdata is only once in the deployedBytecode.

The contract can be found in Sourcify here: https://repo.sourcify.dev/1/0xC8D03C8456B6DD7D32579B4764B01DB2F05B5310

The issue is that we find two occurrences of the a264697066735822122083cc662d6513f67d0b1f903cbaa4084d0b73f05b2f7d3a19f7a4764de12a82bc64736f6c63430008180033 auxdata in the legacyAssembly output. The compiler output can be found here: duplicate-auxdata.legacyAssembly.json

See https://github.com/ethereum/sourcify/issues/2095 for the Sourcify issue.

Environment

  • Compiler version: v0.8.24+commit.e11b9ed9
  • Compilation pipeline (legacy, IR, EOF): legacy
  • Target EVM version (as per compiler settings): cancun
  • Operating system: Linux

Steps to Reproduce

Use solc v0.8.24+commit.e11b9ed9 to compile via this standard json input: duplicate-auxdata-input.json

manuelwedler avatar May 07 '25 10:05 manuelwedler