syscall_emul.cc (11913:427ac0f00e57) syscall_emul.cc (12716:430023c6881b)
1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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38#include <iostream>
39#include <string>
40
41#include "arch/utility.hh"
42#include "base/chunk_generator.hh"
43#include "base/trace.hh"
44#include "config/the_isa.hh"
45#include "cpu/thread_context.hh"
1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

--- 29 unchanged lines hidden (view full) ---

38#include <iostream>
39#include <string>
40
41#include "arch/utility.hh"
42#include "base/chunk_generator.hh"
43#include "base/trace.hh"
44#include "config/the_isa.hh"
45#include "cpu/thread_context.hh"
46#include "dev/net/dist_iface.hh"
46#include "mem/page_table.hh"
47#include "sim/process.hh"
48#include "sim/sim_exit.hh"
49#include "sim/syscall_debug_macros.hh"
50#include "sim/syscall_desc.hh"
51#include "sim/system.hh"
52
53using namespace std;

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97 int status = p->getSyscallArg(tc, index);
98
99 System *sys = tc->getSystemPtr();
100
101 int activeContexts = 0;
102 for (auto &system: sys->systemList)
103 activeContexts += system->numRunningContexts();
104 if (activeContexts == 1) {
47#include "mem/page_table.hh"
48#include "sim/process.hh"
49#include "sim/sim_exit.hh"
50#include "sim/syscall_debug_macros.hh"
51#include "sim/syscall_desc.hh"
52#include "sim/system.hh"
53
54using namespace std;

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98 int status = p->getSyscallArg(tc, index);
99
100 System *sys = tc->getSystemPtr();
101
102 int activeContexts = 0;
103 for (auto &system: sys->systemList)
104 activeContexts += system->numRunningContexts();
105 if (activeContexts == 1) {
106 /**
107 * Even though we are terminating the final thread context, dist-gem5
108 * requires the simulation to remain active and provide
109 * synchronization messages to the switch process. So we just halt
110 * the last thread context and return. The simulation will be
111 * terminated by dist-gem5 in a coordinated manner once all nodes
112 * have signaled their readiness to exit. For non dist-gem5
113 * simulations, readyToExit() always returns true.
114 */
115 if (!DistIface::readyToExit(0)) {
116 tc->halt();
117 return status;
118 }
119
105 exitSimLoop("exiting with last active thread context", status & 0xff);
106 return status;
107 }
108
109 if (group)
110 *p->exitGroup = true;
111
112 if (p->childClearTID)

--- 941 unchanged lines hidden --- 		120 exitSimLoop("exiting with last active thread context", status & 0xff);
121 return status;
122 }
123
124 if (group)
125 *p->exitGroup = true;
126
127 if (p->childClearTID)

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