Re: [uml-devel] [PATCH] UML: don't discard .text.exit section
From: Richard Weinberger <richard@nod.at>
Date: 2016-08-19 11:23:42
Also in:
lkml, stable
On 19.08.2016 12:48, Andrey Ryabinin wrote:
On 08/19/2016 03:14 AM, Dmitry Vyukov wrote:quoted
On Thu, Aug 18, 2016 at 3:08 AM, Andrey Ryabinin [off-list ref] wrote:quoted
quoted
Sorry for delays, I am travelling. Do we need ".fini_array" section? It's also destructors that we don't run. Or does UML use them? Does discarding ".fini_array" help?libc has desctructors and use them for whatever purpose it needs.Does UML actually gracefully exit running global destructors? That would also require gracefully shutting down all threads/cpus. Doesn't it just _exit (or syscall(SYS_exit_group))?Sigh, I dunno, I didn't look that far. My intention was to fix build and keep old behavior unaffected. If you want to wipe destructors, and think that this is ok, go ahead.
UML exits like any regular C program does. The main() function is in arch/um/os-Linux/main.c, when the kernel terminates, hence linux_main() returns back to main() it just returns the exit code. At this point libc's destructors will run, right? Thanks, //richard ------------------------------------------------------------------------------ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel