The Linux Development Platform Configuring, Using, and ... - Classes

CH07.fm Page 236 Monday, October 7, 2002 9:12 PM
236 Chapter 7 • Miscellaneous Tools
8048469: 68 e8 84 04 08 push $0x80484e8
804846e: e8 c9 fe ff ff call 804833c
8048473: 83 c4 10 add $0x10,%esp
}
7.7.6.5 Displaying Information about Library Files
The command can also be used to display information about library files. The following
command displays information about the library file libcommon.a and shows the object file
names from which this library is built.
[root@boota]# objdump -a libcommon.a
In archive ../../chap-04/make/libcommon.a:
common.o: file format elf32-i386
rw-r--r-- 0/0 11668 Nov 13 19:48 2001 common.o
ftp.o: file format elf32-i386
rw-r--r-- 0/0 11824 Nov 13 19:53 2001 ftp.o
[root@boota ltrace]#
Common options that are used with this command are listed in Table 7-5.
Table 7-5 Common options used with objdump command
Option
Description
-a Display information about library files
--debugging
Show debugging information
-d Disassemble an object file
-f Show file headers summary
-S Display source code with disassembly information
-t Display symbol table entries
7.7.7 Using the size Utility
The size utility displays sizes of each section in an object file. The following command displays
sizes for the object file a.out.
[root@boota]# size a.out
text data bss dec hex filename
1015 232 24 1271 4f7 a.out
[root@boota]#