Merge branch 'master' into depencencies

[simgrid.git] / src / kernel / context / ContextSwapped.cpp

diff --git a/src/kernel/context/ContextSwapped.cpp b/src/kernel/context/ContextSwapped.cpp
index 093cf73..afbaa91 100644 (file)
--- a/src/kernel/context/ContextSwapped.cpp
+++ b/src/kernel/context/ContextSwapped.cpp
@@ -7,7 +7,6 @@
 #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"
 
@@ -28,9 +27,38 @@
 #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 {
@@ -97,6 +125,14 @@ SwappedContext::SwappedContext(std::function<void()>&& code, smx_actor_t actor,
 #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
   }
 }
@@ -106,6 +142,9 @@ SwappedContext::~SwappedContext()
   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_);
@@ -135,6 +174,24 @@ void SwappedContext::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()
 {