workload.cc

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/*
 * Copyright 2021 Google Inc.
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 * notice, this list of conditions and the following disclaimer;
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#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