[fpc-devel] Address of procedures in linked libs
AndrewD207 at aol.com
Wed May 7 03:13:16 CEST 2008
In a dynamically linked in library (not dlload) if I do
@SomeProcInSharedObject is it giving me the address of the code in
memory or something else?
For instance I tried to overwrite a proc in gtk like so:
Orig_addr := PtrUInt(@gtk_widget_get_name);
New_addr := PtrUInt(@glue_gtk_widget_get_name);
New_Size := ProcSize(New_addr, PtrUint(@nothing));
Move(Pointer(New_addr)^, Pointer(Orig_addr)^, New_Size);
The Output was this:
Memory at Orig_addr:
8B8225FF E9000000 8B7A25FF E9000000
Memory of New_addr:
E5894855 F87D8948 FFFFCBE8 458B48F0
the memory pointed to at Orig_addr looks bogus to me. Is it a table
The Move command causes an error.
This is in linux/64 bit.
More information about the fpc-devel