Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

nm(1) [bsd man page]

NM(1)							      General Commands Manual							     NM(1)

NAME
nm - print name list (2BSD) SYNOPSIS
nm [ -gnopru ] [ file ... ] DESCRIPTION
Nm prints the name list (symbol table) of each object file in the argument list. If an argument is an archive, a listing for each object file in the archive will be produced. If no file is given, the symbols in "a.out" are listed. Each symbol name is preceded by its value (blanks if undefined) and one of the letters U (undefined), A (absolute), T (text segment sym- bol), D (data segment symbol), B (bss segment symbol), C (common symbol), or f file name. If the symbol is local (non-external) the type letter is in lower case. If the file is an overlaid executable, the overlay number is printed after the name. The number is printed if the symbol is in an overlay or if it is the entry point (in the base segment) for a subroutine in an overlay. The output is sorted alpha- betically. Options are: -g Print only global (external) symbols. -n Sort numerically rather than alphabetically. -o Prepend file or archive element name to each output line rather than only once. -p Don't sort; print in symbol-table order. -r Sort in reverse order. -u Print only undefined symbols. SEE ALSO
ar(1), ar(5), a.out(5), stab(5) 3rd Berkeley Distribution April 29, 1985 NM(1)

Check Out this Related Man Page

NM(1)							      General Commands Manual							     NM(1)

NAME
nm - display name list (symbol table) SYNOPSIS
nm [ -agnoprumxjlf [ s segname sectname ]] [ file ... ] DESCRIPTION
Nm displays the name list (symbol table) of each object file in the argument list. If an argument is an archive, a listing for each object file in the archive will be produced. File can be of the form libx.a(x.o), in which case only symbols from that member of the object file are listed. (The parentheses have to be quoted to get by the shell.) If no file is given, the symbols in a.out are listed. Each symbol name is preceded by its value (blanks if undefined). Unless the -m option is specified, this value is followed by one of the following characters, representing the symbol type: U (undefined), A (absolute), T (text section symbol), D (data section symbol), B (bss section symbol), C (common symbol), - (for debugger symbol table entries; see -a below), S (symbol in a section other than those above), or I (indirect symbol). If the symbol is local (non-external), the symbol's type is instead represented by the corresponding lowercase let- ter. A lower case u in a dynamic shared library indicates a undefined reference to a private external in another module in the same library. If the symbol is a Objective C method, the symbol name is +-[Class_name(category_name) method:name:], where `+' is for class methods, `-' is for instance methods, and (category_name) is present only when the method is in a category. The output is sorted alphabetically by default. Options are: -a Display all symbol table entries, including those inserted for use by debuggers. -g Display only global (external) symbols. -n Sort numerically rather than alphabetically. -o Prepend file or archive element name to each output line, rather than only once. -p Don't sort; display in symbol-table order. -r Sort in reverse order. -u Display only undefined symbols. -m Display the N_SECT type symbols (Mach-O symbols) as (segment_name, section_name) followed by either external or non-external and then the symbol name. Undefined, common, absolute and indirect symbols get displayed as (undefined), (common), (absolute), and (indirect), respectively. -x Display the symbol table entry's fields in hexadecimal, along with the name as a string. -j Just display the symbol names (no value or type). -s segname sectname List only those symbols in the section (segname,sectname). -l List a pseudo symbol .section_start if no symbol has as its value the starting address of the section. (This is used with the -s option above.) -arch arch_type Specifies the architecture, arch_type, of the file for nm(1) to operate on when the file is a fat file (see arch(3) for the cur- rently known arch_types). The arch_type can be "all" to operate on all architectures in the file. The default is to display the symbols from only the host architecture, if the file contains it; otherwise, symbols for all architectures in the file are dis- played. -f Display the symbol table of a dynamic library flat (as one file not separate modules). SEE ALSO
ar(1), ar(5), Mach-O(5), stab(5), nlist(3) BUGS
Displaying Mach-O symbols with -m is too verbose. Without the -m, symbols in the Objective C sections get displayed as an `s'. Apple Computer, Inc. October 23, 1997 NM(1)
Man Page

Featured Tech Videos