From 68bac65eefea39e4532c93f56d85c3087f057bce Mon Sep 17 00:00:00 2001 From: Stefan Lankes Date: Fri, 28 Aug 2015 17:34:33 +0200 Subject: [PATCH] set FS register to 0 if no TLS is needed --- hermit/arch/x86/kernel/tasks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hermit/arch/x86/kernel/tasks.c b/hermit/arch/x86/kernel/tasks.c index 50f4be836..2517466a5 100644 --- a/hermit/arch/x86/kernel/tasks.c +++ b/hermit/arch/x86/kernel/tasks.c @@ -95,7 +95,7 @@ static int thread_entry(void* arg, size_t ep) // copy default TLS segment to stack offset -= curr_task->tls_size; memcpy((void*) (stack+offset), (void*) curr_task->tls_addr, curr_task->tls_size); - } + } else writefs(0); // no TLS => clear fs register // set first argument asm volatile ("mov %0, %%rdi" :: "r"(arg));