CODEWITHSUNDEEP
c++c++builder
getsuha
getsuha

Reputation: 711

What is the content of OBJ file?

I know that a OBJ file produced after compilation of C/C++ source code in any standard compiler generates OBJ file, which later LINKed with the rest of the required libraries to form the EXEcutable file. I want to know the format/structure of the OBJ file. Please go ahead.

Upvotes: 2

Views: 3270

Answers (3)

pmeerw
pmeerw

Reputation: 435

the .obj file is a format used by Microsoft Compilers and is described in the (Common Object File Format) COFF spec

other compilers use different formats to store object code, e.g. ELF on Linux

Upvotes: 1

Alex Budovski
Alex Budovski

Reputation: 18446

Under windows, it'd be a COFF object. Google this file format for a spec. They are linked to produce a PE.

Upvotes: -1

J-16 SDiZ
J-16 SDiZ

Reputation: 26910

C++ Builder (and Delphi) use OMF format obj files. See this wikipedia link for details.

Additional information: Microsoft Visual C++ use an incompatible COFF, that's why C++ Builder have a utility to convert them.

See also: What's the difference between the OMF and COFF format?

Upvotes: 6

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