CODEWITHSUNDEEP
c++cdllshared-libraries
Hari Krishna
Hari Krishna

Reputation: 551

how Consistent is two Shared Object(.so) file which have same code

Is there any consistency when generating a .so file between two builds? When we perform clean and build?

Basically, I wanted the .so file for an app for a previous state of the code (C++), the files changed were very few, which i reverted back, if i build now will the so file be same as the one i got before?

I can replicate the code state to exactly what it was before, I needed that to map the stack trace to the code using this file as we can map hex values to function names.

Thanks

Upvotes: 0

Views: 91

Answers (1)

Alexander L. Belikoff
Alexander L. Belikoff

Reputation: 5711

Assuming you are building from the same source code with the same build options, your output product should be the same (with the possible exception of some timestamps embedded into the code). Any compiler/kernel/library upgrades might break this guarantee.

This is exactly what version control (especially tagged snapshots) are for.

Upvotes: 1

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