-/* Copyright (c) 2009-2020. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2009-2022. 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 "ContextRaw.hpp"
-#include "context_private.hpp"
#include "mc/mc.h"
#include "simgrid/Exception.hpp"
-#include "src/simix/smx_private.hpp"
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_context);
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ker_context);
// Raw context routines
-typedef void (*rawctx_entry_point_t)(simgrid::kernel::context::RawContext*);
+using rawctx_entry_point_t = void (*)(simgrid::kernel::context::SwappedContext*);
-typedef void* raw_stack_t;
+using raw_stack_t = void*;
extern "C" raw_stack_t raw_makecontext(void* malloced_stack, int stack_size, rawctx_entry_point_t entry_point,
- simgrid::kernel::context::RawContext* arg);
+ simgrid::kernel::context::SwappedContext* arg);
extern "C" void raw_swapcontext(raw_stack_t* old, raw_stack_t new_context);
// TODO, we should handle FP, MMX and the x87 control-word (for x86 and x86_64)
+#if HAVE_RAW_CONTEXTS
+
#if SIMGRID_PROCESSOR_x86_64
__asm__ (
#if defined(__APPLE__)
" retl\n"
);
#else
+#error HAVE_RAW_CONTEXTS defined, but neither SIMGRID_PROCESSOR_x86_64 nor SIMGRID_PROCESSOR_i686. Please update the code.
+#endif
+#else /* not HAVE_RAW_CONTEXTS */
/* If you implement raw contexts for other processors, don't forget to
update the definition of HAVE_RAW_CONTEXTS in tools/cmake/CompleteInFiles.cmake */
raw_stack_t raw_makecontext(void* malloced_stack, int stack_size, rawctx_entry_point_t entry_point,
- simgrid::kernel::context::RawContext* arg)
+ simgrid::kernel::context::SwappedContext* arg)
{
THROW_UNIMPLEMENTED;
}
RawContext::RawContext(std::function<void()>&& code, actor::ActorImpl* actor, SwappedContextFactory* factory)
: SwappedContext(std::move(code), actor, factory)
{
- if (has_code()) {
- this->stack_top_ = raw_makecontext(get_stack(), smx_context_stack_size, RawContext::wrapper, this);
- } else {
- if (MC_is_active())
- MC_ignore_heap(&stack_top_, sizeof(stack_top_));
- }
-}
-
-void RawContext::wrapper(RawContext* context)
-{
- ASAN_FINISH_SWITCH(nullptr, &context->asan_ctx_->asan_stack_, &context->asan_ctx_->asan_stack_size_);
- try {
- (*context)();
- context->Context::stop();
- } catch (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;
+ XBT_VERB("Creating a context of stack %uMb", actor->get_stacksize() / 1024 / 1024);
+ if (has_code()) {
+ this->stack_top_ = raw_makecontext(get_stack(), actor->get_stacksize(), smx_ctx_wrapper, this);
+ } else {
+ if (MC_is_active())
+ MC_ignore_heap(&stack_top_, sizeof stack_top_);
}
- ASAN_ONLY(context->asan_stop_ = true);
- context->suspend();
- THROW_IMPOSSIBLE;
}
-void RawContext::swap_into(SwappedContext* to_)
+void RawContext::swap_into_for_real(SwappedContext* to_)
{
const RawContext* to = static_cast<RawContext*>(to_);
- ASAN_ONLY(void* fake_stack = nullptr);
- ASAN_ONLY(to_->asan_ctx_ = this);
- ASAN_START_SWITCH(this->asan_stop_ ? nullptr : &fake_stack, to_->asan_stack_, to_->asan_stack_size_);
raw_swapcontext(&this->stack_top_, to->stack_top_);
- ASAN_FINISH_SWITCH(fake_stack, &this->asan_ctx_->asan_stack_, &this->asan_ctx_->asan_stack_size_);
}
ContextFactory* raw_factory()