Am 26.11.2015 um 10:12 schrieb David Engraf: > Am 25.11.2015 um 17:16 schrieb Paolo Bonzini: >> >> >> On 25/11/2015 16:48, David Engraf wrote: >>> >>> Indeed, TLS handling is broken. The address of iothread_locked is >>> always >>> the same between threads and I can see that a different thread sets >>> iothread_locked to false, thus my current thread uses an invalid state. >>> I will have to check why my compiler produces invalid TLS code. >> >> That rings a bell, I think there are different CRT libraries or >> something like that. Stefan, what would break TLS under Windows? > > "--extra-cflags=-mthreads" is the solution. iothread_locked is unique > for each thread now. I saw that this is already mentioned in the > Documentation [1], but why isn't that enabled by default if QEMU > requires this option on Windows? Without this option, even the latest > version of gcc doesn't produce working TLS code. > > Many thanks for your support! > > David > > [1] http://wiki.qemu.org/Hosts/W32
Hi David, I just prepared a patch which will enable that option by default for all compilations targeting Windows. Thanks for your report! Regards, Stefan
