int arch_os_thread_init(struct thread *thread) {
stack_t sigstack;
#ifdef LISP_FEATURE_SB_THREAD
+#ifdef LISP_FEATURE_GCC_TLS
+ current_thread = thread;
+#else
pthread_setspecific(specials,thread);
#endif
+#endif
#ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK
/* Signal handlers are run on the control stack, so if it is exhausted
* we had better use an alternate stack for whatever signal tells us
void
os_restore_fp_control(os_context_t *context)
{
- /* reset exception flags and restore control flags on SSE2 FPU */
- unsigned int temp = (context->uc_mcontext.fpregs->mxcsr) & ~0x3F;
- asm ("ldmxcsr %0" : : "m" (temp));
- /* same for x87 FPU. */
- asm ("fldcw %0" : : "m" (context->uc_mcontext.fpregs->cwd));
+ if (context->uc_mcontext.fpregs) {
+ /* reset exception flags and restore control flags on SSE2 FPU */
+ unsigned int temp = (context->uc_mcontext.fpregs->mxcsr) & ~0x3F;
+ asm ("ldmxcsr %0" : : "m" (temp));
+ /* same for x87 FPU. */
+ asm ("fldcw %0" : : "m" (context->uc_mcontext.fpregs->cwd));
+ }
}
void