elfdump(1) elfdump(1)
ELF Applications Only
NAME [Toc] [Back]
elfdump - dump information contained in object files.
SYNOPSIS [Toc] [Back]
elfdump [-acCdfghHjkLopqrsStuUvV] [-dc] [-dl] [-tx] [-tv] [-D num]
[+D num2] [+interp] [+linkmap] [+linkmap_bss] [+linkmap_file]
[-n name] [+objdebug] [+s section] [-T num] [+T num2] files...
DESCRIPTION [Toc] [Back]
elfdump takes one or more object files or libraries and dumps
information about them. The following options are supported:
-a Dumps archive headers from an archive library.
-c Dumps the string table(s).
-C (Modifier) Demangles C++ symbol names before printing
them. This modifier is valid with -c, -r, -s, and -t.
If specified with -H, this modifier is ignored. If
specified with -n name, the symbol whose unmangled name
matches name will be printed, and its symbol name will
be printed as a demangled name.
-d Prints the .note section which contains the compilation
unit dictionary and linker footprint. This option has
the same effect as elfdump -dc -dl.
-dc Prints the compilation unit dictionary of the .notes
section.
-dl Prints the linker footprint of the .notes section. The
linker footprint has information on the linker used to
generate the file as well as the link time.
-D num (Modifier) Prints the section whose index is num.
+D num2 (Modifier) Prints the sections in the range 1 to num2.
If used with -D, the sections in the range num to num2
are printed. Valid with -h, -r, -s. If used with -r,
only the relocations which apply to the section(s) in
the range are printed.
-f Dumps the file header (ELF header).
-g Dumps global symbols from an archive.
-h Dumps the section headers.
-H (Modifier) Dumps output information in hexadecimal,
octal, or decimal format, with all options.
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elfdump(1) elfdump(1)
ELF Applications Only
+interp Displays the run-time interpreter path name for a.out
(usually the location of the dynamic loader and
microloader). Only shared bound executables have this
string. To change the setting, use the ld +interp
command.
-j Prints the object dictionary for one or more executable
files, if the source file was compiled with the
+objdebug option or linked with +tools (PA-RISC only)
option. The object dictionary entry contains the name
of the object file that contributed to a particular
section, the relative offset within the section, size
of the object file's contribution, and attributes of
the entry.
-k Prints the CTTI section headers according to the
directory member relationship.
-L Dumps the .dynamic section in shared libraries and
dynamically linked program files.
+linkmap Prints the .linkmap section, which is only created when
the incremental linker is used (with the ld +ild
command), or when the linker option +objdebug is used
(which is the default), along with the compiler option,
-g (which is NOT the default).
+linkmap_bss Prints the .linkmap_bss section, which is only created
when the incremental linker is used (with the ld +ild
command), or when the linker option +objdebug is used
(which is the default), along with the compiler option,
-g (which is NOT the default).
+linkmap_file Prints the .linkmap_file section, which is only created
when the incremental linker is used (with the ld +ild
command), or when the linker option +objdebug is used
(which is the default), along with the compiler option,
-g (which is NOT the default).
-n name (Modifier) Dumps information about the specified
section or symbol name. This option is valid with -h,
-r, -s, and -t. If used with -t, name pertains to a
symbol name and elfdump will only dump the symbol entry
whose name matches name. If used with the other
options, name pertains to a section name and elfdump
will only dump the section whose name matches it.
-o Dumps the optional headers (program headers).
-p (Modifier) Do not print titles, with all options.
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elfdump(1) elfdump(1)
ELF Applications Only
-q (Modifier) Suppresses printing CTTI section headers.
Valid with -k option.
-r Dumps the relocations.
-s Dumps the section contents.
+objdebug Dumps any section beginning with .objdebug_ as a string
table.
+s name (Modifier) Dumps the section specified by name. Valid
with -c and -t only.
-S (Modifier) Dumps output information in short format.
Valid with the -h and -o options.
-t Dumps the symbol table entries.
-tx (Itanium-based systems) Dumps the value of st_shndx in
symbol table, in addition to information dump from -t
option. This option is useful to verify the data
stored in the symbol table.
-T num Prints the symbol whose index is num.
+T num2 (Modifier) Prints the symbols in the range 0 to num2.
If used with -T, print the symbols in the range num to
num2. Valid with -t.
-tv Prints versioned symbols.
-u Prints the usage menu.
-U Prints the unwind table.
-v (Modifier) Verifies the CTTI section headers before
printing. Valid with the -k option.
-V Prints the version number for elfdump.
EXAMPLES [Toc] [Back]
To see the functions exported from a shared library:
$ elfdump -s -n .dynsym libsubs.so | grep 'FUNC GLOB' | grep -v UNDEF
To see the global data items exported from a shared library:
$ elfdump -s -n .dynsym libsubs.so | grep 'OBJT GLOB' | grep -v UNDEF
To display string table information (.strtab):
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elfdump(1) elfdump(1)
ELF Applications Only
$ elfdump -c subs.o
To list the shared libraries linked with a program or shared library
(dependent libraries):
$ elfdump -L a.out | grep Needed
$ chatr a.out # shared library list
To list the embedded path for shared libraries opened by a program:
$ elfdump -L a.out | grep Rpath # or
$ elfdump -s -n .dynamic a.out | grep Rpath
$ chatr a.out # embedded path
SEE ALSO [Toc] [Back]
System Tools
ld(1) Invoke the link editor
Miscellaneous [Toc] [Back]
a.out(4) Assembler, compiler, and linker output
elf(3E) Executable and Linking Format
Texts and Tutorials [Toc] [Back]
HP-UX Linker and Libraries Online User Guide
(See the +help option)
HP-UX Linker and Libraries User's Guide
(See manuals(5) for ordering information)
HP-UX Software Transition Toolkit (STK) -- ELF Object Formats
http://www.software.hp.com/STK/
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