正如从该输出中看到的，简单的 a.out Hello World 文件中包含了大量有价值的细节信息，包括版本信息、柱状图、各种符号类型的表格，等等 。通过使用本文中介绍的这几种工具分析目标文件，您可以慢慢地对可执行程序进行研究 。
除了所有这些段之外，编译器可以将调试信息放入到目标文件中，并且还可以显示这些信息 。输入下面的命令，仔细分析编译器的输出（假设您扮演了调试程序的角色）：
readelf --debug-dump a.out | less
这个命令生成的输出如清单 5 所示 。调试工具，如 GDB，可以读取这些调试信息，并且当程序在调试器中运行的同时，您可以使用该工具显示更具描述性的标记，而不是对代码进行反汇编时的原始地址值 。
清单 5. 该程序中的调试信息The section .debug_aranges contains:
　Length:28
　Version:　2
　Offset into .debug_info:　0
　Pointer Size: 4
　Segment Size: 0
Address　Length
080482c0 34
　Length:52
　Version:　2
　Offset into .debug_info:　10b
　Pointer Size: 4
　Segment Size: 0
Address　Length
08048308 4
08048458 18
08048278 11
080482e4 36
　Length:44
　Version:　2
　Offset into .debug_info:　19b
　Pointer Size: 4
　Segment Size: 0
Address　Length
08048308 4
0804846f 6
0804828d 2
Contents of the .debug_pubnames section:
　Length:　33
　Version: 2
　Offset into .debug_info section: 122
　Size of area in .debug_info section: 145
Offset　Name
121 _IO_stdin_used
The section .debug_info contains:
　Compilation Unit @ offset 0x0:
Length:118
Version:2
Abbrev Offset: 0
Pointer Size:　4
<0>: Abbrev Number: 1 (DW_TAG_compile_unit)
DW_AT_stmt_list: 0
DW_AT_low_pc　: 0x80482c0
DW_AT_high_pc : 0x80482e2
DW_AT_name: ../sysdeps/i386/elf/start.S
DW_AT_comp_dir: /build/buildd/glibc-2.3.6/build-tree/glibc-2.3.6/csu
DW_AT_producer: GNU AS 2.16.91
DW_AT_language: 32769　(MIPS assembler)
　Compilation Unit @ offset 0x7a:
Length:141
Version:2
Abbrev Offset: 20
Pointer Size:　4
<0><85>: Abbrev Number: 1 (DW_TAG_compile_unit)
DW_AT_stmt_list: 0x5b
DW_AT_high_pc : 0x80482e4
DW_AT_low_pc　: 0x80482e4
DW_AT_producer: (indirect string, offset: 0x62): GNU C 3.4.6
DW_AT_language: 1　(ANSI C)
DW_AT_name: (indirect string, offset: 0x0): init.c
DW_AT_comp_dir: (indirect string, offset: 0x11): /build/buildd/...
<1><9f>: Abbrev Number: 2 (DW_TAG_base_type)
DW_AT_name: (indirect string, offset: 0x90): unsigned int
DW_AT_byte_size: 4
DW_AT_encoding: 7　(unsigned)
<1>: Abbrev Number: 2 (DW_TAG_base_type)
DW_AT_name: (indirect string, offset: 0x54): unsigned char
DW_AT_byte_size: 1
DW_AT_encoding: 8　(unsigned char)
<1>: Abbrev Number: 2 (DW_TAG_base_type)
DW_AT_name: (indirect string, offset: 0x9d): short unsigned int
DW_AT_byte_size: 2
DW_AT_encoding: 7　(unsigned)
<1>: Abbrev Number: 2 (DW_TAG_base_type)
DW_AT_name: (indirect string, offset: 0x8b): long unsigned int
DW_AT_byte_size: 4
DW_AT_encoding: 7　(unsigned)
<1>: Abbrev Number: 2 (DW_TAG_base_type)
DW_AT_name: (indirect string, offset: 0x56): signed char
DW_AT_byte_size: 1
DW_AT_encoding: 6　(signed char)
<1>: Abbrev Number: 2 (DW_TAG_base_type)
DW_AT_name: (indirect string, offset: 0x7): short int
DW_AT_byte_size: 2
DW_AT_encoding: 5　(signed)
<1>: Abbrev Number: 3 (DW_TAG_base_type)
DW_AT_name: int
DW_AT_byte_size: 4
DW_AT_encoding: 5　(signed)