Re: Tools to modify shared libraries

[Joe Kelsey]

Stijn Hoop wrote:
On Tue, Jun 17, 2003 at 06:38:29AM -0700, Joe Kelsey wrote:

Basically, what I want to do is remove several entries from the *front* 
of the dynamic section.  Actually, I would settle for just removing all 
of a certain tag (such as DT_NEEDED) from the dynamic section.


I'm very interested, having a working Flash 6 would be great!

Isn't there a way to change these into bogus dependencies, or dependencies
on a FreeBSD shared object or something?
No.

I removed the dependencies by manually editing the .so with emacs...

Now, here is a list of the undefined symbols beginning with __:

   598: 00000000    79 FUNC    GLOBAL DEFAULT  UND [EMAIL PROTECTED] (4)
   939: 00000000   231 FUNC    GLOBAL DEFAULT  UND 
[EMAIL PROTECTED] (2)
  1129: 00000000   109 FUNC    GLOBAL DEFAULT  UND 
[EMAIL PROTECTED] (4)
  1656: 00000000   172 FUNC    WEAK   DEFAULT  UND __deregister_frame_info
  1703: 00000000   815 FUNC    GLOBAL DEFAULT  UND [EMAIL PROTECTED] (2)
  1952: 00000000   815 FUNC    GLOBAL DEFAULT  UND [EMAIL PROTECTED] (2)
  2133: 00000000     4 OBJECT  GLOBAL DEFAULT  UND 
[EMAIL PROTECTED] (2)  2763: 00000000   157 FUNC    WEAK 
DEFAULT  UND [EMAIL PROTECTED] (9)
  3161: 00000000     4 OBJECT  GLOBAL DEFAULT  UND [EMAIL PROTECTED] (2)
  3319: 00000000  1642 FUNC    GLOBAL DEFAULT  UND 
[EMAIL PROTECTED] (2)
  3376: 00000000    26 FUNC    GLOBAL DEFAULT  UND __terminate
  3624: 00000000   129 FUNC    WEAK   DEFAULT  UND __register_frame_info
  3716: 00000000     0 NOTYPE  WEAK   DEFAULT  UND __gmon_start__

The old flash library had these symbols:

    34: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __builtin_vec_new
    36: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __builtin_vec_delete
  1163: 00000000     0 NOTYPE  GLOBAL DEFAULT  UND __errno_location
flashpluginwrapper provides the two __builtin references.  I do not 
think we need to provide the WEAK symbols.  We do need to provide the 
others, specifically __write, __ctype_toupper, __ctype_b, 
__assert_failure, __xstate, __fxstate, and __strtoul_internal.

Anyone want to start modifying flashpluginwrapper?

/Joe



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