Note: Downloading a zip of the source or cloning via SVN will cause theīuild to fail. Src/version.h that is generated by Python.īoth of these tools must be in your PATH. Git is used to get the current commit hash. Python 3 is used to generate src/version.h. There are no third party dependencies and it should beīuildable and runnable on any platform (even non-Windows!). This is usually enabled by default for Debug builds in Visual Studio.) Issue by disabling /INCREMENTAL in the linker settings. This isn't enough to make the build reproducible. ilk file and force the linker to do a full relink every time. Incremental linking using /INCREMENTAL changes theĮxecutable quite extensivly upon subsequent builds. Stripped off after being applied to make comparing binaries possible. Recreating a PDB for debugging purposes). You can still gain some of the benefits that using Ducible provides (e.g., Have reproducible builds and a proper versioning scheme, embedding thisĭigital signing with trusted timestamping cannot be made reproducible (e.g., Might seem useful, but all they do is prevent reproducible builds. There is nothing that Ducible can do about this. Pleaseĭon't ever have anything like this in your code: std :: cout << "Build date: " << _DATE_ << " " << _TIME_ << std :: endl
This tool cannot prevent you from shooting yourself in the foot. The PDB must be modified because changing the imageĪs a post-build step, simply run: $ ducible MyModule.dll MyModule.pdb
The EXE/DLL is specified as the first parameter and the PDB is optionally See also for more information on why you should no spurious changes in binaries under version control.verifiable and correct distributed builds,.recreating debug symbols for a particular version of source code,.recreating a release bit-for-bit from source code,.confidence that two parties built a binary with the same environment,.There are a number of security reasons and practical reasons for In general, reproducible builds give a verifiable path from source code toīinary code. It merely transforms one perfectly goodĮxecutable into another perfectly good, yet reproducible(!), executable. That by modifying DLLs/EXEs in-place and rewriting PDBs.ĭon't worry, Ducible won't mess with the functionality of your executable. The binary and PDB will not be bit-for-bit identical both times. If some source is compiled and linked twice without changing any source, Timestamps and other non-deterministic data are embedded in DLLs, EXEs, and This is a tool to make builds of Portable Executables (PEs) and PDBs
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