What is include in linux? –> include/linux/ is the main central container for global “kernel” header files. The other dirs — the big rest — in include/ are partly for “importing” definitions i.e. integrating hardware. They belong more to drivers/ than to kernel/ or mm/ or fs/.
Where are linux include files located? The C library’s header files include the kernel header files from the “linux” subdirectory. The system’s libc headers are usually installed at the default location /usr/include and the kernel headers in subdirectories under that (most notably /usr/include/linux and /usr/include/asm).
What is usr include in linux? They are very different; the /usr/include/linux headers are the headers that were used when compiling the system’s standard C library. They are owned by the C library packaging, and updated in lockstep with the standard C library.
Where are C headers in linux? Most standard headers are stored in /usr/include . It looks like stdbool. h is stored somewhere else, and depends on which compiler you are using. For example, g++ stores it in /usr/include/c++/4.7.