nm.md

nm

• -a display all symbols including debugger only symbols
• -A precede each symbol by the name of file
• -D display dynamic symbols
• -C demangle low-level symbol name
• -u display only undefined symbol
• -l try to list filename and line number
• -n sort symbols numerically by their addresses

Output flags: Uppercase for global symbols and lowercase for local symbol

• T/t symbol in text(code) section
• D/d initialized data section
• B/b bss data section that typically contains zero-initialized or uninitialized data
• C/c common symbol that is uninitialized data
• U undefined symbol
• N debuggin symbol
• n symbol in read-only section
• R/r symbol in read-only section?