#include "simgrid/modelchecker.h"
#include "src/internal_config.h"
#include "src/kernel/actor/ActorImpl.hpp"
-#include "src/kernel/context/context_private.hpp"
#include "src/simix/smx_private.hpp"
#include "xbt/parmap.hpp"
#if HAVE_VALGRIND_H
#include <valgrind/valgrind.h>
#endif
+#if HAVE_SANITIZER_ADDRESS_FIBER_SUPPORT
+#include <sanitizer/asan_interface.h>
+#endif
+#if HAVE_SANITIZER_THREAD_FIBER_SUPPORT
+#include <sanitizer/tsan_interface.h>
+#endif
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_context);
+// The name of this function is currently hardcoded in MC (as string).
+// Do not change it without fixing those references as well.
+void smx_ctx_wrapper(simgrid::kernel::context::SwappedContext* context)
+{
+#if HAVE_SANITIZER_ADDRESS_FIBER_SUPPORT
+ __sanitizer_finish_switch_fiber(nullptr, &context->asan_ctx_->asan_stack_, &context->asan_ctx_->asan_stack_size_);
+#endif
+ try {
+ (*context)();
+ context->Context::stop();
+ } catch (simgrid::ForcefulKillException const&) {
+ XBT_DEBUG("Caught a ForcefulKillException");
+ } catch (simgrid::Exception const& e) {
+ XBT_INFO("Actor killed by an uncaught exception %s", simgrid::xbt::demangle(typeid(e).name()).get());
+ throw;
+ }
+#if HAVE_SANITIZER_ADDRESS_FIBER_SUPPORT
+ context->asan_stop_ = true;
+#endif
+ context->suspend();
+ THROW_IMPOSSIBLE;
+}
+
namespace simgrid {
namespace kernel {
namespace context {
thread_local SwappedContext* SwappedContext::worker_context_ = nullptr;
SwappedContext::SwappedContext(std::function<void()>&& code, smx_actor_t actor, SwappedContextFactory* factory)
- : Context(std::move(code), actor), factory_(factory)
+ : Context(std::move(code), actor), factory_(*factory)
{
- // Save maestro (=context created first) in preparation for run_all
- if (not SIMIX_context_is_parallel() && factory->maestro_context_ == nullptr)
- factory->maestro_context_ = this;
+ // Save maestro (=first created context) in preparation for run_all
+ if (not SIMIX_context_is_parallel() && factory_.maestro_context_ == nullptr)
+ factory_.maestro_context_ = this;
if (has_code()) {
xbt_assert((smx_context_stack_size & 0xf) == 0, "smx_context_stack_size should be multiple of 16");
if (smx_context_guard_size > 0 && not MC_is_active()) {
-#if !defined(PTH_STACKGROWTH) || (PTH_STACKGROWTH != -1)
+#if PTH_STACKGROWTH != -1
xbt_die(
"Stack overflow protection is known to be broken on your system: you stacks grow upwards (or detection is "
"broken). "
this->stack_ = static_cast<unsigned char*>(xbt_malloc0(smx_context_stack_size));
}
-#if PTH_STACKGROWTH == -1
- ASAN_ONLY(this->asan_stack_ = this->stack_ + smx_context_stack_size);
-#else
- ASAN_ONLY(this->asan_stack_ = this->stack_);
-#endif
#if HAVE_VALGRIND_H
if (RUNNING_ON_VALGRIND)
this->valgrind_stack_id_ = VALGRIND_STACK_REGISTER(this->stack_, this->stack_ + smx_context_stack_size);
+#endif
+#if HAVE_SANITIZER_ADDRESS_FIBER_SUPPORT
+ this->asan_stack_ = get_stack_bottom();
+#endif
+#if HAVE_SANITIZER_THREAD_FIBER_SUPPORT
+ this->tsan_fiber_ = __tsan_create_fiber(0);
+#endif
+ } else {
+ // not has_code(): in maestro context
+#if HAVE_SANITIZER_THREAD_FIBER_SUPPORT
+ this->tsan_fiber_ = __tsan_get_current_fiber();
#endif
}
}
if (stack_ == nullptr) // maestro has no extra stack
return;
+#if HAVE_SANITIZER_THREAD_FIBER_SUPPORT
+ __tsan_destroy_fiber(tsan_fiber_);
+#endif
#if HAVE_VALGRIND_H
if (RUNNING_ON_VALGRIND)
VALGRIND_STACK_DEREGISTER(valgrind_stack_id_);
xbt_free(stack_);
}
-unsigned char* SwappedContext::get_stack()
-{
- return stack_;
-}
-
void SwappedContext::stop()
{
Context::stop();
throw ForcefulKillException();
}
+void SwappedContext::swap_into(SwappedContext* to)
+{
+#if HAVE_SANITIZER_ADDRESS_FIBER_SUPPORT
+ void* fake_stack = nullptr;
+ to->asan_ctx_ = this;
+ __sanitizer_start_switch_fiber(this->asan_stop_ ? nullptr : &fake_stack, to->asan_stack_, to->asan_stack_size_);
+#endif
+#if HAVE_SANITIZER_THREAD_FIBER_SUPPORT
+ __tsan_switch_to_fiber(to->tsan_fiber_, 0);
+#endif
+
+ swap_into_for_real(to);
+
+#if HAVE_SANITIZER_ADDRESS_FIBER_SUPPORT
+ __sanitizer_finish_switch_fiber(fake_stack, &this->asan_ctx_->asan_stack_, &this->asan_ctx_->asan_stack_size_);
+#endif
+}
+
/** Maestro wants to run all ready actors */
void SwappedContextFactory::run_all()
{
SwappedContext* next_context;
if (SIMIX_context_is_parallel()) {
// Get some more work to directly swap into the next executable actor instead of yielding back to the parmap
- boost::optional<smx_actor_t> next_work = factory_->parmap_->next();
+ boost::optional<smx_actor_t> next_work = factory_.parmap_->next();
if (next_work) {
// There is a next soul to embody (ie, another executable actor)
XBT_DEBUG("Run next process");
}
} else { // sequential execution
/* determine the next context */
- unsigned long int i = factory_->process_index_;
- factory_->process_index_++;
+ unsigned long int i = factory_.process_index_;
+ factory_.process_index_++;
if (i < simix_global->actors_to_run.size()) {
/* Actually swap into the next actor directly without transiting to maestro */
} else {
/* all processes were run, actually return to maestro */
XBT_DEBUG("No more actors to run");
- next_context = factory_->maestro_context_;
+ next_context = factory_.maestro_context_;
}
}
Context::set_current(next_context);
