NAME

dump - dump selected parts of an object file

SYNOPSIS

dump [ options ] files

DESCRIPTION

The dump command dumps selected parts of each of its object file arguments.

This command will accept both object files and archives of object files. It processes each file argument according to one or more of the following options:

-a Dump the archive header of each member of an archive.

-C Dump decoded C++ symbol table names.

-c Dump the string table(s).

-D Dump debugging information.

-f Dump each file header.

-g Dump the global symbols in the symbol table of an archive.

-h Dump the section headers.

-L Dump dynamic linking information and static shared library information, if available.

-l Dump line number information.

-o Dump each program execution header.

-r Dump relocation information.

-s Dump section contents in hexadecimal.

-T index or -T index1,index2

Dump only the indexed symbol table entry defined by index or a range of entries defined by index1,index2.

-t Dump symbol table entries.

-u When reading a COFF object file, dump translates the file to ELF internally (this translation does not affect the file contents). This option controls how much translation occurs from COFF values to ELF. Normally (without -u), the COFF values are preserved as much as possible, showing the actual bytes in the file. If -u is used, dump updates the values and completes the internal translation, giving a consistent ELF view of the contents. Although the bytes displayed under this option might not match the file itself, they show how the file would look if it were converted to ELF. (See cof2elf(1) for more information.)

-V          Print version information.

The following modifiers are used in conjunction with the options listed above to modify their capabilities.

-d number or -d number1,number2

Dump the section number indicated by number or the range of sections starting at number1 and ending at number2. This modifier can be used with -h, -s, and -r. When -d is used with -h or -s, the argument is treated as the number of a section or range of sections. When -d is used with -r, the argument is treated as the number of the section or range of sections to which the relocation applies. For example, to print out all relocation entries associated with the .text section, specify the number of the section as the argument to -d. If .text is section number 2 in the file, dump -r -d 2 will print all associated entries. To print out a specific relocation section use dump -s -n name for raw data output, or dump -sv -n name for interpreted output.

-n name Dump information pertaining only to the named entity. This modifier can be used with -h, -s, -r, and -t. When -n is used with -h or -s, the argument will be treated as the name of a section. When -n is used with -t or -r, the argument will be treated as the name of a symbol. For example, dump -t -n .text will dump the symbol table entry associated with the symbol whose name is dump -h -n .text will dump the section header information for the section.

-p Suppress printing of the headings.

-v Dump information in symbolic representation rather than numeric. This modifier can be used with -a (date, user id, group id), -f (class, data, type, machine, version, flags), -h (type, flags), -o (type, flags), -r (name, type), -s (interpret section contents wherever possible),

           -t (type, bind), and -L (value).  When -v is used
           with  -s,  all  sections that can be interpreted,
           such as the string table or symbol table, will be
           interpreted.   For  example,  dump -sv -n .symtab
           files will produce the same formatted  output  as
           dump -tv files, but dump -s -n .symtab files will
           print raw data  in  hexadecimal.   Without  addi-
           tional  modifiers,  dump  -sv files will dump all
           sections in the files interpreting all those that
a.out(4), ar(4).