Talk:Executable library
History
This task came from discussions Here. I was nervous about just deleting all the code for that task so decided to create this, mark the other for maybe future deletion, and see how things go. --Paddy3118 23:44, 14 March 2011 (UTC)
Tcl problem
Oh no, after all the confusion of Scripted main the Tcl example shows a design pattern that is central to the method, but doesn't follow the task description in a way that I had thought a secondary feature of the task - the two separate files. I won't make any changes just yet, (maybe the Tcl author would like to comment)? But I am aware that although I like what this sets out to do, the explanation might need further clarification. --Paddy3118 06:13, 16 March 2011 (UTC)
- I must've been distracted when I wrote it. Corrected. –Donal Fellows 11:28, 16 March 2011 (UTC)
- Thanks Donal. --Paddy3118 12:34, 16 March 2011 (UTC)
Is there a way to build Shared Objects to make them valid executables? --Oenone 08:41, 19 April 2011 (UTC)
- Presumably you mean Shared Objects and not Shared Objects? --Rdm 12:19, 19 April 2011 (UTC)
- I know it's doable in the former case on Windows. I don't know enough about ELF to know if it's doable there. --Michael Mol 12:24, 19 April 2011 (UTC)
Yes, I was talking about ELF Shared Objects. I don't know any way to make it both, a shared object and an executable. So for Unix the task is not solvable. --Oenone 12:35, 19 April 2011 (UTC)
- ELF != Unix -- you just need a different file format (and, thus, a different "interpreter"). But the problem with elf is e_type where 2 is "executable file" and 3 is "shared object" http://linux.die.net/man/5/elf --Rdm 13:07, 19 April 2011 (UTC)
- There are other problems with ELF shared objects. With systems like OpenBSD, an executable needs some special code to initialize certain variables (like environ and __progname), to call main() and to call exit() with the return value from main. A shared object misses this special code, so you cannot start a shared object as an executable. --Kernigh 17:11, 19 April 2011 (UTC)
- I think I am missing something here. Why can't an elf shared object be made to contain this code? --Rdm 18:18, 19 April 2011 (UTC)
- There are other problems with ELF shared objects. With systems like OpenBSD, an executable needs some special code to initialize certain variables (like environ and __progname), to call main() and to call exit() with the return value from main. A shared object misses this special code, so you cannot start a shared object as an executable. --Kernigh 17:11, 19 April 2011 (UTC)