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Full Discussion: Symbol table of a C program
Top Forums Programming Symbol table of a C program Post 302368511 by MrUser on Thursday 5th of November 2009 03:14:51 AM
Old 11-05-2009
Quote:
You can use: objdump or nm.

how to use the commands , i used

Code:
[User@telnet spark]$ objdump -t te.o
te.o: file format elf32-i386
SYMBOL TABLE:
00000000 l df *ABS* 00000000 te.c
00000000 l d .text 00000000
00000000 l d .data 00000000
00000000 l d .bss 00000000
00000000 l d .rodata 00000000
00000000 l d .comment 00000000
00000000 g O .data 00000004 p
00000000 g F .text 00000035 main
00000000 *UND* 00000000 printf

when i use objdump its giving the list of options that can be used with it.
i tried all but dint understand much.

i want the info in following format:

Code:
 
symbolname section address default val 
g                rwdata    ----      0

and so on

if any global variables are present it should give U ( undefined/ defined later)
Last edited by pludi; 11-05-2009 at 04:24 AM.. Reason: code tags added
 

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LEARN ABOUT FREEBSD

utf8

UTF8(5) 						      BSD File Formats Manual							   UTF8(5)

NAME

     utf8 -- UTF-8, a transformation format of ISO 10646

SYNOPSIS

     ENCODING "UTF-8"

DESCRIPTION

     The UTF-8 encoding represents UCS-4 characters as a sequence of octets, using between 1 and 6 for each character.	It is backwards compatible
     with ASCII, so 0x00-0x7f refer to the ASCII character set.  The multibyte encoding of non-ASCII characters consist entirely of bytes whose
     high order bit is set.  The actual encoding is represented by the following table:

     [0x00000000 - 0x0000007f] [00000000.0bbbbbbb] -> 0bbbbbbb
     [0x00000080 - 0x000007ff] [00000bbb.bbbbbbbb] -> 110bbbbb, 10bbbbbb
     [0x00000800 - 0x0000ffff] [bbbbbbbb.bbbbbbbb] ->
	     1110bbbb, 10bbbbbb, 10bbbbbb
     [0x00010000 - 0x001fffff] [00000000.000bbbbb.bbbbbbbb.bbbbbbbb] ->
	     11110bbb, 10bbbbbb, 10bbbbbb, 10bbbbbb
     [0x00200000 - 0x03ffffff] [000000bb.bbbbbbbb.bbbbbbbb.bbbbbbbb] ->
	     111110bb, 10bbbbbb, 10bbbbbb, 10bbbbbb, 10bbbbbb
     [0x04000000 - 0x7fffffff] [0bbbbbbb.bbbbbbbb.bbbbbbbb.bbbbbbbb] ->
	     1111110b, 10bbbbbb, 10bbbbbb, 10bbbbbb, 10bbbbbb, 10bbbbbb

     If more than a single representation of a value exists (for example, 0x00; 0xC0 0x80; 0xE0 0x80 0x80) the shortest representation is always
     used.  Longer ones are detected as an error as they pose a potential security risk, and destroy the 1:1 character:octet sequence mapping.

SEE ALSO

     euc(5)

     Rob Pike and Ken Thompson, "Hello World", Proceedings of the Winter 1993 USENIX Technical Conference, USENIX Association, January 1993.

     F. Yergeau, UTF-8, a transformation format of ISO 10646, January 1998, RFC 2279.

     The Unicode Standard, Version 3.0, The Unicode Consortium, 2000, as amended by the Unicode Standard Annex #27: Unicode 3.1 and by the Unicode
     Standard Annex #28: Unicode 3.2.

STANDARDS

     The utf8 encoding is compatible with RFC 2279 and Unicode 3.2.

BSD
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