/* global "model" object */
#include "model.h"
+#include "execution.h"
+
+#ifdef TLS
+uintptr_t get_tls_addr() {
+ uintptr_t addr;
+ asm ("mov %%fs:0, %0" : "=r" (addr));
+ return addr;
+}
+
+#include <asm/prctl.h>
+#include <sys/prctl.h>
+extern "C" {
+int arch_prctl(int code, unsigned long addr);
+}
+static void set_tls_addr(uintptr_t addr) {
+ arch_prctl(ARCH_SET_FS, addr);
+ asm ("mov %0, %%fs:0" : : "r" (addr) : "memory");
+}
+#endif
/** Allocate a stack for a new thread. */
static void * stack_allocate(size_t size)
/* Add dummy "start" action, just to create a first clock vector */
model->switch_to_master(new ModelAction(THREAD_START, std::memory_order_seq_cst, curr_thread));
+#ifdef TLS
+ if (curr_thread->tls == NULL) {
+ uintptr_t tlssize = model->get_execution()->getTLSSize();
+ uintptr_t thddesc = model->get_execution()->getThdDescSize();
+ curr_thread->tls = (char*) Thread_malloc(tlssize);
+ memcpy(curr_thread->tls, model->get_execution()->getTLSBase(), tlssize);
+ curr_thread->tls += tlssize - thddesc;
+ set_tls_addr((uintptr_t)curr_thread->tls);
+ }
+#endif
+
/* Call the actual thread function */
if (curr_thread->start_routine != NULL) {
curr_thread->start_routine(curr_thread->arg);
int Thread::swap(Thread *t, ucontext_t *ctxt)
{
t->set_state(THREAD_READY);
+#ifdef TLS
+ set_tls_addr((uintptr_t)model->getInitThread()->tls);
+#endif
return model_swapcontext(&t->context, ctxt);
}
int Thread::swap(ucontext_t *ctxt, Thread *t)
{
t->set_state(THREAD_RUNNING);
+#ifdef TLS
+ if (t->tls != NULL)
+ set_tls_addr((uintptr_t)t->tls);
+#endif
return model_swapcontext(ctxt, &t->context);
}
state = THREAD_COMPLETED;
if (stack)
stack_free(stack);
+#ifdef TLS
+ if (tls && get_id() != 1)
+ tls += model->get_execution()->getTLSSize() - model->get_execution()->getThdDescSize();
+ Thread_free(tls);
+#endif
}
/**
start_routine(NULL),
arg(NULL),
stack(NULL),
+#ifdef TLS
+ tls(NULL),
+#endif
user_thread(NULL),
id(tid),
state(THREAD_READY), /* Thread is always ready? */
start_routine(func),
pstart_routine(NULL),
arg(a),
+#ifdef TLS
+ tls(NULL),
+#endif
user_thread(t),
id(tid),
state(THREAD_CREATED),
start_routine(NULL),
pstart_routine(func),
arg(a),
+#ifdef TLS
+ tls(NULL),
+#endif
user_thread(t),
id(tid),
state(THREAD_CREATED),