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/*
* Copyright 2021 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "sim/workload.hh"
#include "base/remote_gdb.hh"
#include "config/the_isa.hh"
#include "cpu/thread_context.hh"
#include "sim/debug.hh"
namespace gem5
{
void
Workload::registerThreadContext(ThreadContext *tc)
{
std::set<ThreadContext *>::iterator it;
bool success;
std::tie(it, success) = threads.insert(tc);
panic_if(!success, "Failed to add thread context %d.",
tc->contextId());
# if !IS_NULL_ISA
if (gdb)
gdb->addThreadContext(tc);
# endif
}
void
Workload::replaceThreadContext(ThreadContext *tc)
{
ContextID id = tc->contextId();
for (auto *old: threads) {
if (old->contextId() != id)
continue;
threads.erase(old);
std::set<ThreadContext *>::iterator it;
bool success;
std::tie(it, success) = threads.insert(tc);
panic_if(!success,
"Failed to insert replacement thread context %d.", id);
# if !IS_NULL_ISA
if (gdb)
gdb->replaceThreadContext(tc);
# endif
return;
}
panic("Replacement thread context %d doesn't match any known id.", id);
}
bool
Workload::trapToGdb(int signal, ContextID ctx_id)
{
# if !IS_NULL_ISA
if (gdb && gdb->isAttached()) {
gdb->trap(ctx_id, signal);
return true;
}
# endif
return false;
};
void
Workload::startup()
{
SimObject::startup();
# if !IS_NULL_ISA
// Now that we're about to start simulation, wait for GDB connections if
// requested.
if (gdb && waitForRemoteGDB) {
inform("%s: Waiting for a remote GDB connection on port %d.", name(),
gdb->port());
gdb->connect();
}
# endif
}
} // namespace gem5