objdump

{{Short description|Program for displaying information about object files}}

{{lowercase title|title=objdump}}

{{more citations needed |date=April 2025}}

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| operating system = Unix and Unix-like

| genre = Command

| license = GNU GPL

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objdump is a command-line program for displaying various information about object files on Unix-like operating systems. For instance, it can be used as a disassembler to view an executable in assembly form. It is part of the GNU Binutils for fine-grained control over executables and other binary data. objdump uses the BFD library to read the contents of object files. Similar utilities are Borland TDUMP, Microsoft DUMPBIN and readelf.

On certain platforms (e.g. macOS), the objdump binary may actually be a link to LLVM's objdump, with different command-line options and behavior.{{Citation needed|date=July 2023}} otool and nm perform analogous functions for Mach-O files.{{cite web |url=https://developer.apple.com/forums/thread/715385 |title=An Apple Library Primer |publisher=Apple Developer Forums}}{{cite web |url=https://llvm.org/docs/CommandGuide/llvm-otool.html |title=llvm-otool - Mach-O dumping tool |publisher=LLVM Reference}}