-/* Copyright (c) 2009-2020. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2009-2021. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "src/kernel/context/ContextSwapped.hpp"
+#include <boost/core/demangle.hpp>
+#include <memory>
+
#ifdef _WIN32
#include <malloc.h>
#include <windows.h>
#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);
} 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());
+ XBT_INFO("Actor killed by an uncaught exception %s", boost::core::demangle(typeid(e).name()).c_str());
throw;
}
#if HAVE_SANITIZER_ADDRESS_FIBER_SUPPORT
SwappedContext::SwappedContext(std::function<void()>&& code, smx_actor_t actor, SwappedContextFactory* factory)
: Context(std::move(code), actor), factory_(*factory)
{
- // Save maestro (=context created first) in preparation for run_all
+ // 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");
+ xbt_assert((actor->get_stacksize() & 0xf) == 0, "Actor stack size should be multiple of 16");
if (smx_context_guard_size > 0 && not MC_is_active()) {
#if PTH_STACKGROWTH != -1
xbt_die(
* Protected pages need to be put after the stack when PTH_STACKGROWTH == 1. */
#endif
- size_t size = smx_context_stack_size + smx_context_guard_size;
+ size_t size = actor->get_stacksize() + smx_context_guard_size;
#if SIMGRID_HAVE_MC
/* Cannot use posix_memalign when SIMGRID_HAVE_MC. Align stack by hand, and save the
* pointer returned by xbt_malloc0. */
- unsigned char* alloc = static_cast<unsigned char*>(xbt_malloc0(size + xbt_pagesize));
+ auto* alloc = static_cast<unsigned char*>(xbt_malloc0(size + xbt_pagesize));
stack_ = alloc - (reinterpret_cast<uintptr_t>(alloc) & (xbt_pagesize - 1)) + xbt_pagesize;
reinterpret_cast<unsigned char**>(stack_)[-1] = alloc;
#elif !defined(_WIN32)
#endif
this->stack_ = this->stack_ + smx_context_guard_size;
} else {
- this->stack_ = static_cast<unsigned char*>(xbt_malloc0(smx_context_stack_size));
+ this->stack_ = static_cast<unsigned char*>(xbt_malloc0(actor->get_stacksize()));
}
#if HAVE_VALGRIND_H
if (RUNNING_ON_VALGRIND)
- this->valgrind_stack_id_ = VALGRIND_STACK_REGISTER(this->stack_, this->stack_ + smx_context_stack_size);
+ this->valgrind_stack_id_ = VALGRIND_STACK_REGISTER(this->stack_, this->stack_ + actor->get_stacksize());
#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_bottom() const
+{
+ // Depending on the stack direction, its bottom (that make_fcontext needs) may be the lower or higher end
+#if PTH_STACKGROWTH == 1
+ return stack_;
+#else
+ return stack_ + get_actor()->get_stacksize();
+#endif
+}
+
void SwappedContext::stop()
{
Context::stop();
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 (SIMIX_context_is_parallel()) {
// We lazily create the parmap so that all options are actually processed when doing so.
if (parmap_ == nullptr)
- parmap_.reset(
- new simgrid::xbt::Parmap<smx_actor_t>(SIMIX_context_get_nthreads(), SIMIX_context_get_parallel_mode()));
+ parmap_ = std::make_unique<simgrid::xbt::Parmap<smx_actor_t>>(SIMIX_context_get_nthreads(),
+ SIMIX_context_get_parallel_mode());
// Usually, Parmap::apply() executes the provided function on all elements of the array.
// Here, the executed function does not return the control to the parmap before all the array is processed:
// - So, resume() is only launched from the parmap for the first job of each minion.
parmap_->apply(
[](const actor::ActorImpl* process) {
- SwappedContext* context = static_cast<SwappedContext*>(process->context_.get());
+ auto* context = static_cast<SwappedContext*>(process->context_.get());
context->resume();
},
simix_global->actors_to_run);
*/
void SwappedContext::resume()
{
- SwappedContext* old = static_cast<SwappedContext*>(self());
+ auto* old = static_cast<SwappedContext*>(self());
if (SIMIX_context_is_parallel()) {
// Save my current soul (either maestro, or one of the minions) in a thread-specific area
worker_context_ = old;
