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I know that the system calls are not in the C standard Library. Is there any library (some sort of a system library) where the system calls are?

If there is such a library how is this library linked to the executable program?

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    Most Linux system calls are available via glibc wrappers.
    – sebasth
    Commented Oct 9, 2017 at 11:50

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System calls are the API between program or library and the kernel. The implementation of system call is in the kernel. C library wraps the system calls which are CPU-architecture specific and supplies a unified C API so the C code could be moved from one architecture to another.

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