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There are various formats for object files, and the same machine code can be packaged in different object file formats. An object file may also work like a shared library. The metadata that object files may include can be used for linking or debugging; it includes information to resolve symbolic cross-references between different modules ...
A linker or link editor is a computer program that combines intermediate software build files such as object and library files into a single executable file such a program or library. A linker is often part of a toolchain that includes a compiler and/or assembler that generates intermediate files that the linker processes.
Dynamic linking or late binding is linking performed while a program is being loaded or executed , rather than when the executable file is created. A dynamically linked library ( dynamic-link library , or DLL, under Windows and OS/2 ; shareable image under OpenVMS ; [ 7 ] dynamic shared object, or DSO, under Unix-like systems) is a library ...
[citation needed] The file is generated alongside the object file during source compilation. Each source compilation generates a separate object file and link-time helper file. When the object files are linked, the compiler is executed again and uses the helper files to optimize code across the separately compiled object files. Plugins
Weak symbols can be used as a mechanism to provide default implementations of functions that can be replaced by more specialized (e.g. optimized) ones at link-time. The default implementation is then declared as weak, and, on certain targets, object files with strongly declared symbols are added to the linker command line.
Any object code produced by compilers is usually linked with other pieces of object code (produced by the same or another compiler) by a type of program called a linker. The linker needs a great deal of information on each program entity. For example, to correctly link a function it needs its name, the number of arguments and their types, and ...
Any static library function can call a function or procedure in another static library. The linker and loader handle this the same way as for kinds of other object files. Static library files may be linked at run time by a linking loader (e.g., the X11 module loader). However, whether such a process can be called static linking is controversial.
creation of Windows dynamic-link libraries: gold: alternative linker for ELF files nlmconv: object file conversion to a NetWare Loadable Module: nm: list symbols exported by object files objcopy: copy object files, possibly making changes objdump: dump information about object files ranlib: generate indices for archives (for compatibility; same ...