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Manual Pages  — READELF

NAME

readelf – display information about ELF objects

CONTENTS

SYNOPSIS


readelf [-a | --all] [-c | --archive-index] [-d | --dynamic] [-e | --headers] [-g | --section-groups] [-h | --file-header] [-l | --program-headers] [-n | --notes] [-p section | --string-dump -= section] [-r | --relocs] [-t | --section-details] [-v | --version] [ -w [afilmoprsFLR]| --debug-dump [=long-option-name ,...] ] [-x section | --hex-dump -= section] [-A | --arch-specific] [-D | --use-dynamic] [-H | --help] [-I | --histogram] [-N | --full-section-name] [-S | --sections | --section-headers] [-V | --version-info] [-W | --wide] file...

DESCRIPTION

The readelf utility displays information about ELF objects and ar(1) archives.

The readelf utility recognizes the following options:
-a | --all
  Turn on the following flags: -d, -h, -I, -l, -r, -s, -A, -S and -V.
-c | --archive-index
  Print the archive symbol table for archives.
-d | --dynamic
  Print the contents of the SHT_DYNAMIC sections in the ELF object.
-e | --headers
  Print all program, file and section headers in the ELF object.
-g | --section-groups
  Print the contents of the section groups in the ELF object.
-h | --file-header
  Print the file header of the ELF object.
-l | --program-headers
  Print the content of the program header table for the object.
-n | --notes
  Print the contents of PT_NOTE segments or SHT_NOTE sections present in the ELF object.
-p section | --string-dump -= section
  Print the contents of the specified section as printable strings. The argument section should be the name of a section or a numeric section index.
-r | --relocs
  Print relocation information.
-s | --syms | --symbols
  Print symbol tables.
-t | --section-details
  Print additional information about sections, such as the flags fields in section headers.
-v | --version
  Prints a version identifier for readelf and exits.
-w [afilmoprsFLR ]|
  --debug-dump [=long-option-name ,...] Display DWARF information. The -w option is used with the short options in the following table; the --debug-dump option is used with a comma-separated list of the corresponding long option names:
Short Option Long Option Description

a
abbrev Show abbreviation information.

f
frames Show frame information, displaying frame instructions.

i
info Show debugging information entries.

l
rawline Show line information in raw form.

m
macro Show macro information.

o
loc Show location list information.

p
pubnames Show global names.

r
aranges|ranges Show address range information.

s
str Show the debug string table.

F
frames-interp Show frame information, displaying register rules.

L
decodedline Show line information in decoded form.

R
Ranges Show range lists.

If no sub-options are specified, the default is to show information corresponding to the a , f , i, l , o , p , r , s and R short options.

-x section | --hex-dump -= section
  Display the contents of the specified section in hexadecimal. The argument section should be the name of a section or a numeric section index.
-A | --arch-specific
  This option is accepted but is currently unimplemented.
-D | --use-dynamic
  Print the symbol table specified by the DT_SYMTAB entry in the ".dynamic" section.
-H | --help
  Print a help message.
-I | --histogram
  Print information on bucket list lengths for sections of type SHT_HASH and SHT_GNU_HASH.
-N | --full-section-name
  This option is accepted but is currently unimplemented.
-S | --sections | --section-headers
  Print information in the section headers for each ELF object.
-V | --version-info
  Print symbol versioning information.
-W | --wide
  Print information about ELF structures using one long line per structure. If this option is not specified, readelf will list information in the headers of 64 bit ELF objects on two separate lines.

EXIT STATUS

The utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

nm(1), addr2line(1), elfcopy(1),

AUTHORS

The readelf utility was written by Kai Wang <Mt kaiwang27@users.sourceforge.net>.

READELF (1) September 13, 2012

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