What is object file? How can you access object file?

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Shikha

Mathematics & Computer Science since 20 years

Objects can be described as the instance of the class which caries all properties of that particular class in which it is defined. Object files can be called with the help of member functions defined in the class
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An object file is binary representation of source(text) file. On Linux, object and executable files have ELF format. It's a collection of various sections segragating type of data in: - text section - data section - stack - heap Also addresses in an object file are relative and hence object files...
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An object file is binary representation of source(text) file. On Linux, object and executable files have ELF format. It's a collection of various sections segragating type of data in: - text section - data section - stack - heap Also addresses in an object file are relative and hence object files can't be run unless it's linked. for ex, if you make a call to printf(), object file will have an entry as ("call printf ___") where the blank is the address of printf function. Since printf is part of libc.so, you have no knowledge of its address. Linking with libc pads the correct address and enable you to call it successfully. read less
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Freelance technical trainer / consultant (Embedded systems, Automation / Scripting) : C, Linux, Embedded systems, python, perl, tcl

Object file is a file that you get after compilation and after linking. Library file is also an object file (or it could be collection of object files). To access of them, you can use utilities such as readelf and objdump.
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