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# Searchable Keywords: objdump disassembly code source strings
 
	To view inside binary code you need a tool

A suite for Linux systems, binutils.i386, contains several
tools that will allow you to view oin side binary code.

objdump:

To disassemble a binary and view file type and calls. You can't
really see the plain text just the basic idea.

The dash D say disasemble. A -d will just display the assembler mnemonics
instruction.

There is plethera of options, these are just a few.


[root@praxan ~]# objdump -D /bin/sleep |more

/bin/sleep:     file format elf32-i386

Disassembly of section .interp:

08048134 <.interp>:
 8048134:       2f                      das
 8048135:       6c                      insb   (%dx),%es:(%edi)
 8048136:       69 62 2f 6c 64 2d 6c    imul   $0x6c2d646c,0x2f(%edx),%esp
 804813d:       69 6e 75 78 2e 73 6f    imul   $0x6f732e78,0x75(%esi),%ebp
 8048144:       2e 32 00                xor    %cs:(%eax),%al
Disassembly of section .note.ABI-tag:

08048148 <.note.ABI-tag>:
 8048148:       04 00                   add    $0x0,%al
 804814a:       00 00                   add    %al,(%eax)
 804814c:       10 00                   adc    %al,(%eax)
 804814e:       00 00                   add    %al,(%eax)
 8048150:       01 00                   add    %eax,(%eax)

................................snip


strings:

 strings (for listing
           : printable strings from files),

No such file


# strings /bin/zcat |more
/lib/ld-linux.so.2
__gmon_start__
libc.so.6
_IO_stdin_used
fflush
strcpy
fchmod
__printf_chk
_IO_putc
optind
strrchr
perror
rpmatch
closedir
signal
puts





See also: