diff options
Diffstat (limited to 'src/sim')
42 files changed, 1941 insertions, 1048 deletions
diff --git a/src/sim/BaseTLB.py b/src/sim/BaseTLB.py new file mode 100644 index 000000000..9aca4a97c --- /dev/null +++ b/src/sim/BaseTLB.py @@ -0,0 +1,33 @@ +# Copyright (c) 2008 The Hewlett-Packard Development Company +# All rights reserved. +# +# 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. +# +# Authors: Gabe Black + +from m5.SimObject import SimObject + +class BaseTLB(SimObject): + type = 'BaseTLB' + abstract = True diff --git a/src/sim/InstTracer.py b/src/sim/InstTracer.py index f7500f1e8..9ba91a019 100644 --- a/src/sim/InstTracer.py +++ b/src/sim/InstTracer.py @@ -31,5 +31,5 @@ from m5.params import * class InstTracer(SimObject): type = 'InstTracer' - cxx_namespace = 'Trace' + cxx_class = 'Trace::InstTracer' abstract = True diff --git a/src/sim/Process.py b/src/sim/Process.py index 37a27bf3b..81108dd70 100644 --- a/src/sim/Process.py +++ b/src/sim/Process.py @@ -34,7 +34,8 @@ class Process(SimObject): type = 'Process' abstract = True input = Param.String('cin', "filename for stdin") - output = Param.String('cout', 'filename for stdout/stderr') + output = Param.String('cout', 'filename for stdout') + errout = Param.String('cerr', 'filename for stderr') system = Param.System(Parent.any, "system process will run on") max_stack_size = Param.MemorySize('64MB', 'maximum size of the stack') diff --git a/src/sim/SConscript b/src/sim/SConscript index 0b39ab8e8..750007947 100644 --- a/src/sim/SConscript +++ b/src/sim/SConscript @@ -30,6 +30,7 @@ Import('*') +SimObject('BaseTLB.py') SimObject('Root.py') SimObject('System.py') SimObject('InstTracer.py') @@ -39,7 +40,9 @@ Source('core.cc') Source('debug.cc') Source('eventq.cc') Source('faults.cc') -Source('main.cc') +Source('init.cc') +BinSource('main.cc') +Source('pseudo_inst.cc') Source('root.cc') Source('serialize.cc') Source('sim_events.cc') @@ -51,7 +54,6 @@ Source('system.cc') if env['FULL_SYSTEM']: Source('arguments.cc') - Source('pseudo_inst.cc') else: Source('tlb.cc') SimObject('Process.py') diff --git a/src/sim/System.py b/src/sim/System.py index 5712a5c03..3b0bc1e46 100644 --- a/src/sim/System.py +++ b/src/sim/System.py @@ -38,7 +38,7 @@ class System(SimObject): type = 'System' swig_objdecls = [ '%include "python/swig/system.i"' ] - physmem = Param.PhysicalMemory(Parent.any, "phsyical memory") + physmem = Param.PhysicalMemory(Parent.any, "physical memory") mem_mode = Param.MemoryMode('atomic', "The mode the memory system is in") if build_env['FULL_SYSTEM']: abstract = True diff --git a/src/sim/async.hh b/src/sim/async.hh index 932f975d2..6dd5b8a0d 100644 --- a/src/sim/async.hh +++ b/src/sim/async.hh @@ -42,12 +42,12 @@ /// then checked in the main event loop. Defined in main.cc. /// @note See the PollQueue object (in pollevent.hh) for the use of async_io and async_alarm. //@{ -extern volatile bool async_event; ///< Some asynchronous event has happened. -extern volatile bool async_statdump; ///< Async request to dump stats. -extern volatile bool async_statreset; ///< Async request to reset stats. -extern volatile bool async_exit; ///< Async request to exit simulator. -extern volatile bool async_io; ///< Async I/O request (SIGIO). -extern volatile bool async_alarm; ///< Async alarm event (SIGALRM). +extern volatile bool async_event; ///< Some asynchronous event has happened. +extern volatile bool async_statdump; ///< Async request to dump stats. +extern volatile bool async_statreset; ///< Async request to reset stats. +extern volatile bool async_exit; ///< Async request to exit simulator. +extern volatile bool async_io; ///< Async I/O request (SIGIO). +extern volatile bool async_alarm; ///< Async alarm event (SIGALRM). extern volatile bool async_exception; ///< Python exception. //@} diff --git a/src/sim/byteswap.hh b/src/sim/byteswap.hh index 062fc4513..2519e552b 100644 --- a/src/sim/byteswap.hh +++ b/src/sim/byteswap.hh @@ -62,7 +62,7 @@ enum ByteOrder {BigEndianByteOrder, LittleEndianByteOrder}; //These functions actually perform the swapping for parameters //of various bit lengths -static inline uint64_t +inline uint64_t swap_byte64(uint64_t x) { #if defined(linux) @@ -81,7 +81,7 @@ swap_byte64(uint64_t x) #endif } -static inline uint32_t +inline uint32_t swap_byte32(uint32_t x) { #if defined(linux) @@ -95,7 +95,7 @@ swap_byte32(uint32_t x) #endif } -static inline uint16_t +inline uint16_t swap_byte16(uint16_t x) { #if defined(linux) @@ -113,7 +113,7 @@ swap_byte16(uint16_t x) // sizeof() values are known at compile time, it should inline to a // direct call to the right swap_byteNN() function. template <typename T> -static inline T swap_byte(T x) { +inline T swap_byte(T x) { if (sizeof(T) == 8) return swap_byte64((uint64_t)x); else if (sizeof(T) == 4) @@ -127,7 +127,7 @@ static inline T swap_byte(T x) { } template<> -static inline Twin64_t swap_byte<Twin64_t>(Twin64_t x) +inline Twin64_t swap_byte<Twin64_t>(Twin64_t x) { x.a = swap_byte(x.a); x.b = swap_byte(x.b); @@ -135,7 +135,7 @@ static inline Twin64_t swap_byte<Twin64_t>(Twin64_t x) } template<> -static inline Twin32_t swap_byte<Twin32_t>(Twin32_t x) +inline Twin32_t swap_byte<Twin32_t>(Twin32_t x) { x.a = swap_byte(x.a); x.b = swap_byte(x.b); @@ -144,23 +144,23 @@ static inline Twin32_t swap_byte<Twin32_t>(Twin32_t x) //The conversion functions with fixed endianness on both ends don't need to //be in a namespace -template <typename T> static inline T betole(T value) {return swap_byte(value);} -template <typename T> static inline T letobe(T value) {return swap_byte(value);} +template <typename T> inline T betole(T value) {return swap_byte(value);} +template <typename T> inline T letobe(T value) {return swap_byte(value);} //For conversions not involving the guest system, we can define the functions //conditionally based on the BYTE_ORDER macro and outside of the namespaces #if defined(_BIG_ENDIAN) || !defined(_LITTLE_ENDIAN) && BYTE_ORDER == BIG_ENDIAN const ByteOrder HostByteOrder = BigEndianByteOrder; -template <typename T> static inline T htole(T value) {return swap_byte(value);} -template <typename T> static inline T letoh(T value) {return swap_byte(value);} -template <typename T> static inline T htobe(T value) {return value;} -template <typename T> static inline T betoh(T value) {return value;} +template <typename T> inline T htole(T value) {return swap_byte(value);} +template <typename T> inline T letoh(T value) {return swap_byte(value);} +template <typename T> inline T htobe(T value) {return value;} +template <typename T> inline T betoh(T value) {return value;} #elif defined(_LITTLE_ENDIAN) || BYTE_ORDER == LITTLE_ENDIAN const ByteOrder HostByteOrder = LittleEndianByteOrder; -template <typename T> static inline T htole(T value) {return value;} -template <typename T> static inline T letoh(T value) {return value;} -template <typename T> static inline T htobe(T value) {return swap_byte(value);} -template <typename T> static inline T betoh(T value) {return swap_byte(value);} +template <typename T> inline T htole(T value) {return value;} +template <typename T> inline T letoh(T value) {return value;} +template <typename T> inline T htobe(T value) {return swap_byte(value);} +template <typename T> inline T betoh(T value) {return swap_byte(value);} #else #error Invalid Endianess #endif @@ -169,33 +169,33 @@ namespace BigEndianGuest { const bool ByteOrderDiffers = (HostByteOrder != BigEndianByteOrder); template <typename T> - static inline T gtole(T value) {return betole(value);} + inline T gtole(T value) {return betole(value);} template <typename T> - static inline T letog(T value) {return letobe(value);} + inline T letog(T value) {return letobe(value);} template <typename T> - static inline T gtobe(T value) {return value;} + inline T gtobe(T value) {return value;} template <typename T> - static inline T betog(T value) {return value;} + inline T betog(T value) {return value;} template <typename T> - static inline T htog(T value) {return htobe(value);} + inline T htog(T value) {return htobe(value);} template <typename T> - static inline T gtoh(T value) {return betoh(value);} + inline T gtoh(T value) {return betoh(value);} } namespace LittleEndianGuest { const bool ByteOrderDiffers = (HostByteOrder != LittleEndianByteOrder); template <typename T> - static inline T gtole(T value) {return value;} + inline T gtole(T value) {return value;} template <typename T> - static inline T letog(T value) {return value;} + inline T letog(T value) {return value;} template <typename T> - static inline T gtobe(T value) {return letobe(value);} + inline T gtobe(T value) {return letobe(value);} template <typename T> - static inline T betog(T value) {return betole(value);} + inline T betog(T value) {return betole(value);} template <typename T> - static inline T htog(T value) {return htole(value);} + inline T htog(T value) {return htole(value);} template <typename T> - static inline T gtoh(T value) {return letoh(value);} + inline T gtoh(T value) {return letoh(value);} } #endif // __SIM_BYTE_SWAP_HH__ diff --git a/src/sim/core.cc b/src/sim/core.cc index 75f1f384c..8342b6740 100644 --- a/src/sim/core.cc +++ b/src/sim/core.cc @@ -97,14 +97,6 @@ setOutputDir(const string &dir) simout.setDirectory(dir); } -ostream *outputStream; - -void -setOutputFile(const string &file) -{ - outputStream = simout.find(file); -} - /** * Queue of C++ callbacks to invoke on simulator exit. */ diff --git a/src/sim/core.hh b/src/sim/core.hh index fb7f921f4..50cb2ef59 100644 --- a/src/sim/core.hh +++ b/src/sim/core.hh @@ -68,11 +68,6 @@ extern Tick ps; void setClockFrequency(Tick ticksPerSecond); -/// Output stream for simulator messages (e.g., cprintf()). Also used -/// as default stream for tracing and DPRINTF() messages (unless -/// overridden with trace:file option). -extern std::ostream *outputStream; -void setOutputFile(const std::string &file); void setOutputDir(const std::string &dir); struct Callback; diff --git a/src/sim/debug.cc b/src/sim/debug.cc index b4f4cd9dc..f8a3215d0 100644 --- a/src/sim/debug.cc +++ b/src/sim/debug.cc @@ -29,51 +29,36 @@ * Steve Reinhardt */ -#include <sys/types.h> -#include <signal.h> -#include <unistd.h> +#include <Python.h> #include <string> #include <vector> +#include "base/debug.hh" #include "sim/debug.hh" #include "sim/eventq.hh" #include "sim/sim_events.hh" using namespace std; -void -debug_break() -{ -#ifndef NDEBUG - kill(getpid(), SIGTRAP); -#else - cprintf("debug_break suppressed, compiled with NDEBUG\n"); -#endif -} - // // Debug event: place a breakpoint on the process function and // schedule the event to break at a particular cycle // -class DebugBreakEvent : public Event +struct DebugBreakEvent : public Event { - public: - - DebugBreakEvent(EventQueue *q, Tick _when); - - void process(); // process event + DebugBreakEvent(); + void process(); // process event virtual const char *description() const; }; // // constructor: schedule at specified time // -DebugBreakEvent::DebugBreakEvent(EventQueue *q, Tick _when) - : Event(q, Debug_Break_Pri) +DebugBreakEvent::DebugBreakEvent() + : Event(Debug_Break_Pri) { setFlags(AutoDelete); - schedule(_when); } // @@ -99,12 +84,46 @@ DebugBreakEvent::description() const void schedBreakCycle(Tick when) { - new DebugBreakEvent(&mainEventQueue, when); + mainEventQueue.schedule(new DebugBreakEvent, when); + warn("need to stop all queues"); } void eventqDump() { mainEventQueue.dump(); + warn("need to dump all queues"); +} + +void +py_interact() +{ + PyObject *globals; + PyObject *locals; + + globals = PyEval_GetGlobals(); + Py_INCREF(globals); + locals = PyDict_New(); + PyRun_String("import code", Py_file_input, globals, locals); + PyRun_String("code.interact(local=globals())", Py_file_input, + globals, locals); + Py_DECREF(globals); + Py_DECREF(locals); +} + +int remote_gdb_base_port = 7000; + +int +getRemoteGDBPort() +{ + return remote_gdb_base_port; +} + +// Set remote GDB base port. 0 means disable remote GDB. +// Callable from python. +void +setRemoteGDBPort(int port) +{ + remote_gdb_base_port = port; } diff --git a/src/sim/debug.hh b/src/sim/debug.hh index 79792234b..7dafb8394 100644 --- a/src/sim/debug.hh +++ b/src/sim/debug.hh @@ -28,9 +28,15 @@ * Authors: Nathan Binkert */ -#ifndef __DEBUG_HH__ -#define __DEBUG_HH__ +#ifndef __SIM_DEBUG_HH__ +#define __SIM_DEBUG_HH__ -void debug_break(); +#include "sim/host.hh" -#endif // __DEBUG_HH__ +void schedBreakCycle(Tick when); + +int getRemoteGDBPort(); +// Remote gdb base port. 0 disables remote gdb. +void setRemoteGDBPort(int port); + +#endif // __SIM_DEBUG_HH__ diff --git a/src/sim/eventq.cc b/src/sim/eventq.cc index 2c679be1e..d1f84fcb2 100644 --- a/src/sim/eventq.cc +++ b/src/sim/eventq.cc @@ -1,5 +1,6 @@ /* * Copyright (c) 2000-2005 The Regents of The University of Michigan + * Copyright (c) 2008 The Hewlett-Packard Development Company * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -30,18 +31,17 @@ * Steve Raasch */ -#include <assert.h> - +#include <cassert> #include <iostream> #include <string> #include <vector> -#include "cpu/smt.hh" +#include "base/hashmap.hh" #include "base/misc.hh" - -#include "sim/eventq.hh" #include "base/trace.hh" +#include "cpu/smt.hh" #include "sim/core.hh" +#include "sim/eventq.hh" using namespace std; @@ -51,100 +51,183 @@ using namespace std; // Events on this queue are processed at the *beginning* of each // cycle, before the pipeline simulation is performed. // -EventQueue mainEventQueue("MainEventQueue"); +EventQueue mainEventQueue("Main Event Queue"); #ifndef NDEBUG Counter Event::instanceCounter = 0; #endif +Event::~Event() +{ + assert(!scheduled()); +} + +const std::string +Event::name() const +{ +#ifndef NDEBUG + return csprintf("Event_%d", instance); +#else + return csprintf("Event_%x", (uintptr_t)this); +#endif +} + + +Event * +Event::insertBefore(Event *event, Event *curr) +{ + // Either way, event will be the top element in the 'in bin' list + // which is the pointer we need in order to look into the list, so + // we need to insert that into the bin list. + if (!curr || *event < *curr) { + // Insert the event before the current list since it is in the future. + event->nextBin = curr; + event->nextInBin = NULL; + } else { + // Since we're on the correct list, we need to point to the next list + event->nextBin = curr->nextBin; // curr->nextBin can now become stale + + // Insert event at the top of the stack + event->nextInBin = curr; + } + + return event; +} + void EventQueue::insert(Event *event) { - if (head == NULL || event->when() < head->when() || - (event->when() == head->when() && - event->priority() <= head->priority())) { - event->next = head; - head = event; - } else { - Event *prev = head; - Event *curr = head->next; + // Deal with the head case + if (!head || *event <= *head) { + head = Event::insertBefore(event, head); + return; + } - while (curr) { - if (event->when() <= curr->when() && - (event->when() < curr->when() || - event->priority() <= curr->priority())) - break; + // Figure out either which 'in bin' list we are on, or where a new list + // needs to be inserted + Event *prev = head; + Event *curr = head->nextBin; + while (curr && *curr < *event) { + prev = curr; + curr = curr->nextBin; + } - prev = curr; - curr = curr->next; - } + // Note: this operation may render all nextBin pointers on the + // prev 'in bin' list stale (except for the top one) + prev->nextBin = Event::insertBefore(event, curr); +} + +Event * +Event::removeItem(Event *event, Event *top) +{ + Event *curr = top; + Event *next = top->nextInBin; + + // if we removed the top item, we need to handle things specially + // and just remove the top item, fixing up the next bin pointer of + // the new top item + if (event == top) { + if (!next) + return top->nextBin; + next->nextBin = top->nextBin; + return next; + } + + // Since we already checked the current element, we're going to + // keep checking event against the next element. + while (event != next) { + if (!next) + panic("event not found!"); - event->next = curr; - prev->next = event; + curr = next; + next = next->nextInBin; } + + // remove next from the 'in bin' list since it's what we're looking for + curr->nextInBin = next->nextInBin; + return top; } void EventQueue::remove(Event *event) { if (head == NULL) - return; + panic("event not found!"); - if (head == event){ - head = event->next; + // deal with an event on the head's 'in bin' list (event has the same + // time as the head) + if (*head == *event) { + head = Event::removeItem(event, head); return; } + // Find the 'in bin' list that this event belongs on Event *prev = head; - Event *curr = head->next; - while (curr && curr != event) { + Event *curr = head->nextBin; + while (curr && *curr < *event) { prev = curr; - curr = curr->next; + curr = curr->nextBin; } - if (curr == event) - prev->next = curr->next; + if (!curr || *curr != *event) + panic("event not found!"); + + // curr points to the top item of the the correct 'in bin' list, when + // we remove an item, it returns the new top item (which may be + // unchanged) + prev->nextBin = Event::removeItem(event, curr); } Event * EventQueue::serviceOne() { Event *event = head; - event->clearFlags(Event::Scheduled); - head = event->next; + Event *next = head->nextInBin; + event->flags.clear(Event::Scheduled); + + if (next) { + // update the next bin pointer since it could be stale + next->nextBin = head->nextBin; + + // pop the stack + head = next; + } else { + // this was the only element on the 'in bin' list, so get rid of + // the 'in bin' list and point to the next bin list + head = head->nextBin; + } // handle action if (!event->squashed()) { event->process(); if (event->isExitEvent()) { - assert(!event->getFlags(Event::AutoDelete)); // would be silly + assert(!event->flags.isSet(Event::AutoDelete)); // would be silly return event; } } else { - event->clearFlags(Event::Squashed); + event->flags.clear(Event::Squashed); } - if (event->getFlags(Event::AutoDelete) && !event->scheduled()) + if (event->flags.isSet(Event::AutoDelete) && !event->scheduled()) delete event; return NULL; } - void Event::serialize(std::ostream &os) { SERIALIZE_SCALAR(_when); SERIALIZE_SCALAR(_priority); - SERIALIZE_ENUM(_flags); + short _flags = flags; + SERIALIZE_SCALAR(_flags); } - void Event::unserialize(Checkpoint *cp, const string §ion) { if (scheduled()) - deschedule(); + mainEventQueue.deschedule(this); UNSERIALIZE_SCALAR(_when); UNSERIALIZE_SCALAR(_priority); @@ -152,13 +235,16 @@ Event::unserialize(Checkpoint *cp, const string §ion) // need to see if original event was in a scheduled, unsquashed // state, but don't want to restore those flags in the current // object itself (since they aren't immediately true) - UNSERIALIZE_ENUM(_flags); - bool wasScheduled = (_flags & Scheduled) && !(_flags & Squashed); - _flags &= ~(Squashed | Scheduled); + short _flags; + UNSERIALIZE_SCALAR(_flags); + flags = _flags; + + bool wasScheduled = flags.isSet(Scheduled) && !flags.isSet(Squashed); + flags.clear(Squashed | Scheduled); if (wasScheduled) { DPRINTF(Config, "rescheduling at %d\n", _when); - schedule(_when); + mainEventQueue.schedule(this, _when); } } @@ -168,18 +254,25 @@ EventQueue::serialize(ostream &os) std::list<Event *> eventPtrs; int numEvents = 0; - Event *event = head; - while (event) { - if (event->getFlags(Event::AutoSerialize)) { - eventPtrs.push_back(event); - paramOut(os, csprintf("event%d", numEvents++), event->name()); + Event *nextBin = head; + while (nextBin) { + Event *nextInBin = nextBin; + + while (nextInBin) { + if (nextInBin->flags.isSet(Event::AutoSerialize)) { + eventPtrs.push_back(nextInBin); + paramOut(os, csprintf("event%d", numEvents++), + nextInBin->name()); + } + nextInBin = nextInBin->nextInBin; } - event = event->next; + + nextBin = nextBin->nextBin; } SERIALIZE_SCALAR(numEvents); - for (std::list<Event *>::iterator it=eventPtrs.begin(); + for (std::list<Event *>::iterator it = eventPtrs.begin(); it != eventPtrs.end(); ++it) { (*it)->nameOut(os); (*it)->serialize(os); @@ -203,7 +296,7 @@ EventQueue::unserialize(Checkpoint *cp, const std::string §ion) } void -EventQueue::dump() +EventQueue::dump() const { cprintf("============================================================\n"); cprintf("EventQueue Dump (cycle %d)\n", curTick); @@ -212,16 +305,63 @@ EventQueue::dump() if (empty()) cprintf("<No Events>\n"); else { - Event *event = head; - while (event) { - event->dump(); - event = event->next; + Event *nextBin = head; + while (nextBin) { + Event *nextInBin = nextBin; + while (nextInBin) { + nextInBin->dump(); + nextInBin = nextInBin->nextInBin; + } + + nextBin = nextBin->nextBin; } } cprintf("============================================================\n"); } +bool +EventQueue::debugVerify() const +{ + m5::hash_map<long, bool> map; + + Tick time = 0; + short priority = 0; + + Event *nextBin = head; + while (nextBin) { + Event *nextInBin = nextBin; + while (nextInBin) { + if (nextInBin->when() < time) { + cprintf("time goes backwards!"); + nextInBin->dump(); + return false; + } else if (nextInBin->when() == time && + nextInBin->priority() < priority) { + cprintf("priority inverted!"); + nextInBin->dump(); + return false; + } + + if (map[reinterpret_cast<long>(nextInBin)]) { + cprintf("Node already seen"); + nextInBin->dump(); + return false; + } + map[reinterpret_cast<long>(nextInBin)] = true; + + time = nextInBin->when(); + priority = nextInBin->priority(); + + nextInBin = nextInBin->nextInBin; + } + + nextBin = nextBin->nextBin; + } + + return true; +} + void dumpMainQueue() { @@ -235,7 +375,6 @@ Event::description() const return "generic"; } -#if TRACING_ON void Event::trace(const char *action) { @@ -250,23 +389,21 @@ Event::trace(const char *action) // needs to be printed. DPRINTFN("%s event %s @ %d\n", description(), action, when()); } -#endif void -Event::dump() +Event::dump() const { - cprintf("Event (%s)\n", description()); - cprintf("Flags: %#x\n", _flags); -#if TRACING_ON - cprintf("Created: %d\n", when_created); + cprintf("Event %s (%s)\n", name(), description()); + cprintf("Flags: %#x\n", flags); +#ifdef EVENTQ_DEBUG + cprintf("Created: %d\n", whenCreated); #endif if (scheduled()) { -#if TRACING_ON - cprintf("Scheduled at %d\n", when_scheduled); +#ifdef EVENTQ_DEBUG + cprintf("Scheduled at %d\n", whenScheduled); #endif cprintf("Scheduled for %d, priority %d\n", when(), _priority); - } - else { + } else { cprintf("Not Scheduled\n"); } } diff --git a/src/sim/eventq.hh b/src/sim/eventq.hh index a454e5d64..33bb34252 100644 --- a/src/sim/eventq.hh +++ b/src/sim/eventq.hh @@ -36,45 +36,70 @@ #ifndef __SIM_EVENTQ_HH__ #define __SIM_EVENTQ_HH__ -#include <assert.h> - #include <algorithm> +#include <cassert> +#include <climits> #include <map> #include <string> #include <vector> -#include "sim/host.hh" // for Tick - #include "base/fast_alloc.hh" +#include "base/flags.hh" #include "base/misc.hh" #include "base/trace.hh" #include "sim/serialize.hh" +#include "sim/host.hh" -class EventQueue; // forward declaration - -////////////////////// -// -// Main Event Queue -// -// Events on this queue are processed at the *beginning* of each -// cycle, before the pipeline simulation is performed. -// -// defined in eventq.cc -// -////////////////////// -extern EventQueue mainEventQueue; +class EventQueue; // forward declaration +extern EventQueue mainEventQueue; /* * An item on an event queue. The action caused by a given * event is specified by deriving a subclass and overriding the * process() member function. + * + * Caution, the order of members is chosen to maximize data packing. */ class Event : public Serializable, public FastAlloc { friend class EventQueue; + protected: + typedef short FlagsType; + typedef ::Flags<FlagsType> Flags; + + static const FlagsType PublicRead = 0x003f; + static const FlagsType PublicWrite = 0x001d; + static const FlagsType Squashed = 0x0001; + static const FlagsType Scheduled = 0x0002; + static const FlagsType AutoDelete = 0x0004; + static const FlagsType AutoSerialize = 0x0008; + static const FlagsType IsExitEvent = 0x0010; + static const FlagsType IsMainQueue = 0x0020; +#ifdef EVENTQ_DEBUG + static const FlagsType Initialized = 0xf000; +#endif + private: + // The event queue is now a linked list of linked lists. The + // 'nextBin' pointer is to find the bin, where a bin is defined as + // when+priority. All events in the same bin will be stored in a + // second linked list (a stack) maintained by the 'nextInBin' + // pointer. The list will be accessed in LIFO order. The end + // result is that the insert/removal in 'nextBin' is + // linear/constant, and the lookup/removal in 'nextInBin' is + // constant/constant. Hopefully this is a significant improvement + // over the current fully linear insertion. + Event *nextBin; + Event *nextInBin; + + static Event *insertBefore(Event *event, Event *curr); + static Event *removeItem(Event *event, Event *last); + + Tick _when; //!< timestamp when event should be processed + short _priority; //!< event priority + Flags flags; #ifndef NDEBUG /// Global counter to generate unique IDs for Event instances @@ -84,54 +109,85 @@ class Event : public Serializable, public FastAlloc /// this but they're not consistent across runs making debugging /// more difficult. Thus we use a global counter value when /// debugging. - Counter instanceId; -#endif // NDEBUG + Counter instance; /// queue to which this event belongs (though it may or may not be /// scheduled on this queue yet) EventQueue *queue; +#endif - Event *next; +#ifdef EVENTQ_DEBUG + Tick whenCreated; //!< time created + Tick whenScheduled; //!< time scheduled +#endif - Tick _when; //!< timestamp when event should be processed - int _priority; //!< event priority - char _flags; + void + setWhen(Tick when, EventQueue *q) + { + _when = when; +#ifndef NDEBUG + queue = q; +#endif +#ifdef EVENTQ_DEBUG + whenScheduled = curTick; +#endif + } protected: - enum Flags { - None = 0x0, - Squashed = 0x1, - Scheduled = 0x2, - AutoDelete = 0x4, - AutoSerialize = 0x8, - IsExitEvent = 0x10 - }; + /// Accessor for flags. + Flags + getFlags() const + { + return flags & PublicRead; + } - bool getFlags(Flags f) const { return (_flags & f) == f; } - void setFlags(Flags f) { _flags |= f; } - void clearFlags(Flags f) { _flags &= ~f; } + Flags + getFlags(Flags _flags) const + { + assert(flags.noneSet(~PublicRead)); + return flags.isSet(_flags); + } - protected: - EventQueue *theQueue() const { return queue; } + Flags + allFlags(Flags _flags) const + { + assert(_flags.noneSet(~PublicRead)); + return flags.allSet(_flags); + } -#if TRACING_ON - Tick when_created; //!< Keep track of creation time For debugging - Tick when_scheduled; //!< Keep track of creation time For debugging + /// Accessor for flags. + void + setFlags(Flags _flags) + { + assert(_flags.noneSet(~PublicWrite)); + flags.set(_flags); + } - virtual void trace(const char *action); //!< trace event activity -#else - void trace(const char *) {} -#endif + void + clearFlags(Flags _flags) + { + assert(_flags.noneSet(~PublicWrite)); + flags.clear(_flags); + } - unsigned annotated_value; + void + clearFlags() + { + flags.clear(PublicWrite); + } - public: + // This function isn't really useful if TRACING_ON is not defined + virtual void trace(const char *action); //!< trace event activity + public: /// Event priorities, to provide tie-breakers for events scheduled /// at the same cycle. Most events are scheduled at the default /// priority; these values are used to control events that need to /// be ordered within a cycle. enum Priority { + /// Minimum priority + Minimum_Pri = SHRT_MIN, + /// If we enable tracing on a particular cycle, do that as the /// very first thing so we don't miss any of the events on /// that cycle (even if we enter the debugger). @@ -140,81 +196,66 @@ class Event : public Serializable, public FastAlloc /// Breakpoints should happen before anything else (except /// enabling trace output), so we don't miss any action when /// debugging. - Debug_Break_Pri = -100, + Debug_Break_Pri = -100, /// CPU switches schedule the new CPU's tick event for the /// same cycle (after unscheduling the old CPU's tick event). /// The switch needs to come before any tick events to make /// sure we don't tick both CPUs in the same cycle. - CPU_Switch_Pri = -31, + CPU_Switch_Pri = -31, /// For some reason "delayed" inter-cluster writebacks are /// scheduled before regular writebacks (which have default /// priority). Steve? - Delayed_Writeback_Pri = -1, + Delayed_Writeback_Pri = -1, /// Default is zero for historical reasons. - Default_Pri = 0, + Default_Pri = 0, /// Serailization needs to occur before tick events also, so /// that a serialize/unserialize is identical to an on-line /// CPU switch. - Serialize_Pri = 32, + Serialize_Pri = 32, /// CPU ticks must come after other associated CPU events /// (such as writebacks). - CPU_Tick_Pri = 50, + CPU_Tick_Pri = 50, /// Statistics events (dump, reset, etc.) come after /// everything else, but before exit. - Stat_Event_Pri = 90, + Stat_Event_Pri = 90, /// Progress events come at the end. Progress_Event_Pri = 95, /// If we want to exit on this cycle, it's the very last thing /// we do. - Sim_Exit_Pri = 100 + Sim_Exit_Pri = 100, + + /// Maximum priority + Maximum_Pri = SHRT_MAX }; /* * Event constructor * @param queue that the event gets scheduled on */ - Event(EventQueue *q, Priority p = Default_Pri) - : queue(q), next(NULL), _priority(p), _flags(None), -#if TRACING_ON - when_created(curTick), when_scheduled(0), -#endif - annotated_value(0) + Event(Priority p = Default_Pri) + : nextBin(NULL), nextInBin(NULL), _priority(p) { #ifndef NDEBUG - instanceId = ++instanceCounter; + instance = ++instanceCounter; + queue = NULL; #endif - } - - ~Event() {} - - virtual const std::string name() const { -#ifndef NDEBUG - return csprintf("Event_%d", instanceId); -#else - return csprintf("Event_%x", (uintptr_t)this); +#ifdef EVENTQ_DEBUG + flags.set(Initialized); + whenCreated = curTick; + whenScheduled = 0; #endif } - /// Determine if the current event is scheduled - bool scheduled() const { return getFlags(Scheduled); } - - /// Schedule the event with the current priority or default priority - void schedule(Tick t); - - /// Reschedule the event with the current priority - // always parameter means to schedule if not already scheduled - void reschedule(Tick t, bool always = false); - - /// Remove the event from the current schedule - void deschedule(); + virtual ~Event(); + virtual const std::string name() const; /// Return a C string describing the event. This string should /// *not* be dynamically allocated; just a const char array @@ -222,8 +263,9 @@ class Event : public Serializable, public FastAlloc virtual const char *description() const; /// Dump the current event data - void dump(); + void dump() const; + public: /* * This member function is invoked when the event is processed * (occurs). There is no default implementation; each subclass @@ -236,17 +278,17 @@ class Event : public Serializable, public FastAlloc */ virtual void process() = 0; - void annotate(unsigned value) { annotated_value = value; }; - unsigned annotation() { return annotated_value; } + /// Determine if the current event is scheduled + bool scheduled() const { return flags.isSet(Scheduled); } /// Squash the current event - void squash() { setFlags(Squashed); } + void squash() { flags.set(Squashed); } /// Check whether the event is squashed - bool squashed() { return getFlags(Squashed); } + bool squashed() const { return flags.isSet(Squashed); } /// See if this is a SimExitEvent (without resorting to RTTI) - bool isExitEvent() { return getFlags(IsExitEvent); } + bool isExitEvent() const { return flags.isSet(IsExitEvent); } /// Get the time that the event is scheduled Tick when() const { return _when; } @@ -254,65 +296,20 @@ class Event : public Serializable, public FastAlloc /// Get the event priority int priority() const { return _priority; } - struct priority_compare : - public std::binary_function<Event *, Event *, bool> +#ifndef SWIG + struct priority_compare + : public std::binary_function<Event *, Event *, bool> { - bool operator()(const Event *l, const Event *r) const { + bool + operator()(const Event *l, const Event *r) const + { return l->when() >= r->when() || l->priority() >= r->priority(); } }; virtual void serialize(std::ostream &os); virtual void unserialize(Checkpoint *cp, const std::string §ion); -}; - -template <class T, void (T::* F)()> -void -DelayFunction(Tick when, T *object) -{ - class DelayEvent : public Event - { - private: - T *object; - - public: - DelayEvent(Tick when, T *o) - : Event(&mainEventQueue), object(o) - { setFlags(this->AutoDestroy); schedule(when); } - void process() { (object->*F)(); } - const char *description() const { return "delay"; } - }; - - new DelayEvent(when, object); -} - -template <class T, void (T::* F)()> -class EventWrapper : public Event -{ - private: - T *object; - - public: - EventWrapper(T *obj, bool del = false, - EventQueue *q = &mainEventQueue, - Priority p = Default_Pri) - : Event(q, p), object(obj) - { - if (del) - setFlags(AutoDelete); - } - - EventWrapper(T *obj, Tick t, bool del = false, - EventQueue *q = &mainEventQueue, - Priority p = Default_Pri) - : Event(q, p), object(obj) - { - if (del) - setFlags(AutoDelete); - schedule(t); - } - - void process() { (object->*F)(); } +#endif }; /* @@ -320,18 +317,14 @@ class EventWrapper : public Event */ class EventQueue : public Serializable { - protected: - std::string objName; - private: + std::string objName; Event *head; void insert(Event *event); void remove(Event *event); public: - - // constructor EventQueue(const std::string &n) : objName(n), head(NULL) {} @@ -339,17 +332,19 @@ class EventQueue : public Serializable virtual const std::string name() const { return objName; } // schedule the given event on this queue - void schedule(Event *ev); - void deschedule(Event *ev); - void reschedule(Event *ev); + void schedule(Event *event, Tick when); + void deschedule(Event *event); + void reschedule(Event *event, Tick when, bool always = false); - Tick nextTick() { return head->when(); } + Tick nextTick() const { return head->when(); } Event *serviceOne(); // process all events up to the given timestamp. we inline a // quick test to see if there are any events to process; if so, // call the internal out-of-line version to process them all. - void serviceEvents(Tick when) { + void + serviceEvents(Tick when) + { while (!empty()) { if (nextTick() > when) break; @@ -367,76 +362,129 @@ class EventQueue : public Serializable void serviceEvents() { serviceEvents(curTick); } // return true if no events are queued - bool empty() { return head == NULL; } + bool empty() const { return head == NULL; } - void dump(); + void dump() const; Tick nextEventTime() { return empty() ? curTick : head->when(); } + bool debugVerify() const; + +#ifndef SWIG virtual void serialize(std::ostream &os); virtual void unserialize(Checkpoint *cp, const std::string §ion); +#endif }; +#ifndef SWIG +class EventManager +{ + protected: + /** A pointer to this object's event queue */ + EventQueue *eventq; -////////////////////// -// -// inline functions -// -// can't put these inside declaration due to circular dependence -// between Event and EventQueue classes. -// -////////////////////// + public: + EventManager(EventManager &em) : eventq(em.queue()) {} + EventManager(EventManager *em) : eventq(em ? em->queue() : NULL) {} + EventManager(EventQueue *eq) : eventq(eq) {} -// schedule at specified time (place on event queue specified via -// constructor) -inline void -Event::schedule(Tick t) -{ - assert(!scheduled()); -// if (t < curTick) -// warn("t is less than curTick, ensure you don't want cycles"); + EventQueue * + queue() const + { + return eventq; + } - setFlags(Scheduled); -#if TRACING_ON - when_scheduled = curTick; -#endif - _when = t; - queue->schedule(this); -} + void + schedule(Event &event, Tick when) + { + eventq->schedule(&event, when); + } -inline void -Event::deschedule() + void + deschedule(Event &event) + { + eventq->deschedule(&event); + } + + void + reschedule(Event &event, Tick when, bool always = false) + { + eventq->reschedule(&event, when, always); + } + + void + schedule(Event *event, Tick when) + { + eventq->schedule(event, when); + } + + void + deschedule(Event *event) + { + eventq->deschedule(event); + } + + void + reschedule(Event *event, Tick when, bool always = false) + { + eventq->reschedule(event, when, always); + } +}; + +template <class T, void (T::* F)()> +void +DelayFunction(EventQueue *eventq, Tick when, T *object) { - assert(scheduled()); + class DelayEvent : public Event + { + private: + T *object; + + public: + DelayEvent(T *o) + : object(o) + { this->setFlags(AutoDelete); } + void process() { (object->*F)(); } + const char *description() const { return "delay"; } + }; - clearFlags(Squashed); - clearFlags(Scheduled); - queue->deschedule(this); + eventq->schedule(new DelayEvent(object), when); } -inline void -Event::reschedule(Tick t, bool always) +template <class T, void (T::* F)()> +class EventWrapper : public Event { - assert(scheduled() || always); + private: + T *object; -#if TRACING_ON - when_scheduled = curTick; -#endif - _when = t; - - if (scheduled()) { - clearFlags(Squashed); - queue->reschedule(this); - } else { - setFlags(Scheduled); - queue->schedule(this); + public: + EventWrapper(T *obj, bool del = false, Priority p = Default_Pri) + : Event(p), object(obj) + { + if (del) + setFlags(AutoDelete); } -} + + void process() { (object->*F)(); } +}; inline void -EventQueue::schedule(Event *event) +EventQueue::schedule(Event *event, Tick when) { + assert(when >= curTick); + assert(!event->scheduled()); +#ifdef EVENTQ_DEBUG + assert((event->flags & Event::Initialized) == Event::Initialized); +#endif + + event->setWhen(when, this); insert(event); + event->flags.set(Event::Scheduled); + if (this == &mainEventQueue) + event->flags.set(Event::IsMainQueue); + else + event->flags.clear(Event::IsMainQueue); + if (DTRACE(Event)) event->trace("scheduled"); } @@ -444,20 +492,86 @@ EventQueue::schedule(Event *event) inline void EventQueue::deschedule(Event *event) { + assert(event->scheduled()); +#ifdef EVENTQ_DEBUG + assert((event->flags & Event::Initialized) == Event::Initialized); +#endif + remove(event); + + event->flags.clear(Event::Squashed); + event->flags.clear(Event::Scheduled); + + if (event->flags.isSet(Event::AutoDelete)) + delete event; + if (DTRACE(Event)) event->trace("descheduled"); } inline void -EventQueue::reschedule(Event *event) +EventQueue::reschedule(Event *event, Tick when, bool always) { - remove(event); + assert(when >= curTick); + assert(always || event->scheduled()); +#ifdef EVENTQ_DEBUG + assert((event->flags & Event::Initialized) == Event::Initialized); +#endif + + if (event->scheduled()) + remove(event); + + event->setWhen(when, this); insert(event); + event->flags.clear(Event::Squashed); + event->flags.set(Event::Scheduled); + if (this == &mainEventQueue) + event->flags.set(Event::IsMainQueue); + else + event->flags.clear(Event::IsMainQueue); + if (DTRACE(Event)) event->trace("rescheduled"); } +inline bool +operator<(const Event &l, const Event &r) +{ + return l.when() < r.when() || + (l.when() == r.when() && l.priority() < r.priority()); +} +inline bool +operator>(const Event &l, const Event &r) +{ + return l.when() > r.when() || + (l.when() == r.when() && l.priority() > r.priority()); +} + +inline bool +operator<=(const Event &l, const Event &r) +{ + return l.when() < r.when() || + (l.when() == r.when() && l.priority() <= r.priority()); +} +inline bool +operator>=(const Event &l, const Event &r) +{ + return l.when() > r.when() || + (l.when() == r.when() && l.priority() >= r.priority()); +} + +inline bool +operator==(const Event &l, const Event &r) +{ + return l.when() == r.when() && l.priority() == r.priority(); +} + +inline bool +operator!=(const Event &l, const Event &r) +{ + return l.when() != r.when() || l.priority() != r.priority(); +} +#endif #endif // __SIM_EVENTQ_HH__ diff --git a/src/sim/faults.hh b/src/sim/faults.hh index cfc6ad105..75696641b 100644 --- a/src/sim/faults.hh +++ b/src/sim/faults.hh @@ -41,7 +41,7 @@ class FaultBase; typedef RefCountingPtr<FaultBase> Fault; typedef const char * FaultName; -typedef Stats::Scalar<> FaultStat; +typedef Stats::Scalar FaultStat; // Each class has it's name statically define in _name, // and has a virtual function to access it's name. diff --git a/src/sim/host.hh b/src/sim/host.hh index 93a5fe7f2..dd29534fd 100644 --- a/src/sim/host.hh +++ b/src/sim/host.hh @@ -38,13 +38,11 @@ #define __HOST_HH__ #include <inttypes.h> -#include <limits> - /** uint64_t constant */ -#define ULL(N) ((uint64_t)N##ULL) +#define ULL(N) ((uint64_t)N##ULL) /** int64_t constant */ -#define LL(N) ((int64_t)N##LL) +#define LL(N) ((int64_t)N##LL) /** Statistics counter type. Not much excuse for not using a 64-bit * integer here, but if you're desperate and only run short @@ -58,7 +56,7 @@ typedef int64_t Counter; */ typedef int64_t Tick; -const Tick MaxTick = std::numeric_limits<Tick>::max(); +const Tick MaxTick = LL(0x7fffffffffffffff); /** * Address type diff --git a/src/sim/init.cc b/src/sim/init.cc new file mode 100644 index 000000000..66eddfb6f --- /dev/null +++ b/src/sim/init.cc @@ -0,0 +1,209 @@ +/* + * Copyright (c) 2000-2005 The Regents of The University of Michigan + * Copyright (c) 2008 The Hewlett-Packard Development Company + * All rights reserved. + * + * 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. + * + * Authors: Nathan Binkert + */ + +#include <Python.h> +#include <marshal.h> +#include <signal.h> + +#include <iostream> +#include <string> +#include <zlib.h> + +#include "base/cprintf.hh" +#include "base/misc.hh" +#include "sim/async.hh" +#include "sim/core.hh" +#include "sim/host.hh" +#include "sim/init.hh" + +using namespace std; + +/// Stats signal handler. +void +dumpStatsHandler(int sigtype) +{ + async_event = true; + async_statdump = true; +} + +void +dumprstStatsHandler(int sigtype) +{ + async_event = true; + async_statdump = true; + async_statreset = true; +} + +/// Exit signal handler. +void +exitNowHandler(int sigtype) +{ + async_event = true; + async_exit = true; +} + +/// Abort signal handler. +void +abortHandler(int sigtype) +{ + ccprintf(cerr, "Program aborted at cycle %d\n", curTick); +} + +/* + * M5 can do several special things when various signals are sent. + * None are mandatory. + */ +void +initSignals() +{ + // Floating point exceptions may happen on misspeculated paths, so + // ignore them + signal(SIGFPE, SIG_IGN); + + // We use SIGTRAP sometimes for debugging + signal(SIGTRAP, SIG_IGN); + + // Dump intermediate stats + signal(SIGUSR1, dumpStatsHandler); + + // Dump intermediate stats and reset them + signal(SIGUSR2, dumprstStatsHandler); + + // Exit cleanly on Interrupt (Ctrl-C) + signal(SIGINT, exitNowHandler); + + // Print out cycle number on abort + signal(SIGABRT, abortHandler); +} + +/* + * Uncompress and unmarshal the code object stored in the + * EmbeddedPyModule + */ +PyObject * +getCode(const EmbeddedPyModule *pymod) +{ + assert(pymod->zlen == pymod->code_end - pymod->code); + Bytef *marshalled = new Bytef[pymod->mlen]; + uLongf unzlen = pymod->mlen; + int ret = uncompress(marshalled, &unzlen, (const Bytef *)pymod->code, + pymod->zlen); + if (ret != Z_OK) + panic("Could not uncompress code: %s\n", zError(ret)); + assert(unzlen == pymod->mlen); + + return PyMarshal_ReadObjectFromString((char *)marshalled, pymod->mlen); +} + +// The python library is totally messed up with respect to constness, +// so make a simple macro to make life a little easier +#define PyCC(x) (const_cast<char *>(x)) + +/* + * Load and initialize all of the python parts of M5, including Swig + * and the embedded module importer. + */ +int +initM5Python() +{ + extern void initSwig(); + + // initialize SWIG modules. initSwig() is autogenerated and calls + // all of the individual swig initialization functions. + initSwig(); + + // Load the importer module + PyObject *code = getCode(&embeddedPyImporter); + PyObject *module = PyImport_ExecCodeModule(PyCC("importer"), code); + if (!module) { + PyErr_Print(); + return 1; + } + + // Load the rest of the embedded python files into the embedded + // python importer + const EmbeddedPyModule *pymod = &embeddedPyModules[0]; + while (pymod->filename) { + PyObject *code = getCode(pymod); + PyObject *result = PyObject_CallMethod(module, PyCC("add_module"), + PyCC("ssO"), pymod->filename, pymod->modpath, code); + if (!result) { + PyErr_Print(); + return 1; + } + Py_DECREF(result); + ++pymod; + } + + return 0; +} + +/* + * Start up the M5 simulator. This mostly vectors into the python + * main function. + */ +int +m5Main(int argc, char **argv) +{ + PySys_SetArgv(argc, argv); + + // We have to set things up in the special __main__ module + PyObject *module = PyImport_AddModule(PyCC("__main__")); + if (module == NULL) + panic("Could not import __main__"); + PyObject *dict = PyModule_GetDict(module); + + // import the main m5 module + PyObject *result; + result = PyRun_String("import m5", Py_file_input, dict, dict); + if (!result) { + PyErr_Print(); + return 1; + } + Py_DECREF(result); + + // Start m5 + result = PyRun_String("m5.main()", Py_file_input, dict, dict); + if (!result) { + PyErr_Print(); + return 1; + } + Py_DECREF(result); + + return 0; +} + +PyMODINIT_FUNC +initm5(void) +{ + initM5Python(); + PyImport_ImportModule(PyCC("m5")); +} diff --git a/src/sim/init.hh b/src/sim/init.hh new file mode 100644 index 000000000..b0f29bf30 --- /dev/null +++ b/src/sim/init.hh @@ -0,0 +1,54 @@ +/* + * Copyright (c) 2008 The Hewlett-Packard Development Company + * All rights reserved. + * + * 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. + * + * Authors: Nathan Binkert + */ + +#ifndef __SIM_INIT_HH__ +#define __SIM_INIT_HH__ + +/* + * Data structure describing an embedded python file. + */ +struct EmbeddedPyModule +{ + const char *filename; + const char *modpath; + const char *code; + const char *code_end; + int zlen; + int mlen; +}; + +extern const EmbeddedPyModule embeddedPyImporter; +extern const EmbeddedPyModule embeddedPyModules[]; + +void initSignals(); +int initM5Python(); +int m5Main(int argc, char **argv); + +#endif // __SIM_INIT_HH__ diff --git a/src/sim/insttracer.hh b/src/sim/insttracer.hh index 9a20c7c56..9fb5f9f22 100644 --- a/src/sim/insttracer.hh +++ b/src/sim/insttracer.hh @@ -34,7 +34,7 @@ #include "base/bigint.hh" #include "base/trace.hh" -#include "cpu/inst_seq.hh" // for InstSeqNum +#include "cpu/inst_seq.hh" // for InstSeqNum #include "cpu/static_inst.hh" #include "sim/host.hh" #include "sim/sim_object.hh" @@ -55,6 +55,8 @@ class InstRecord // dump the record StaticInstPtr staticInst; Addr PC; + StaticInstPtr macroStaticInst; + MicroPC upc; bool misspeculating; // The remaining fields are only valid for particular instruction @@ -71,7 +73,7 @@ class InstRecord } data; enum { DataInvalid = 0, - DataInt8 = 1, // set to equal number of bytes + DataInt8 = 1, // set to equal number of bytes DataInt16 = 2, DataInt32 = 4, DataInt64 = 8, @@ -86,10 +88,13 @@ class InstRecord public: InstRecord(Tick _when, ThreadContext *_thread, - const StaticInstPtr &_staticInst, - Addr _pc, bool spec) + const StaticInstPtr _staticInst, + Addr _pc, bool spec, + const StaticInstPtr _macroStaticInst = NULL, + MicroPC _upc = 0) : when(_when), thread(_thread), staticInst(_staticInst), PC(_pc), + macroStaticInst(_macroStaticInst), upc(_upc), misspeculating(spec) { data_status = DataInvalid; @@ -137,7 +142,9 @@ class InstTracer : public SimObject virtual InstRecord * getInstRecord(Tick when, ThreadContext *tc, - const StaticInstPtr staticInst, Addr pc) = 0; + const StaticInstPtr staticInst, Addr pc, + const StaticInstPtr macroStaticInst = NULL, + MicroPC _upc = 0) = 0; }; diff --git a/src/sim/main.cc b/src/sim/main.cc index baca556a0..d674e0cff 100644 --- a/src/sim/main.cc +++ b/src/sim/main.cc @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 The Regents of The University of Michigan + * Copyright (c) 2008 The Hewlett-Packard Development Company * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -29,125 +29,33 @@ */ #include <Python.h> -#include <signal.h> -#include <iostream> -#include <string> - -#include "base/cprintf.hh" -#include "base/misc.hh" -#include "config/pythonhome.hh" -#include "python/swig/init.hh" -#include "sim/async.hh" -#include "sim/host.hh" -#include "sim/core.hh" - -using namespace std; - -/// Stats signal handler. -void -dumpStatsHandler(int sigtype) -{ - async_event = true; - async_statdump = true; -} - -void -dumprstStatsHandler(int sigtype) -{ - async_event = true; - async_statdump = true; - async_statreset = true; -} - -/// Exit signal handler. -void -exitNowHandler(int sigtype) -{ - async_event = true; - async_exit = true; -} - -/// Abort signal handler. -void -abortHandler(int sigtype) -{ - ccprintf(cerr, "Program aborted at cycle %d\n", curTick); -} - -int -python_main() -{ - PyObject *module; - PyObject *dict; - PyObject *result; - - module = PyImport_AddModule(const_cast<char*>("__main__")); - if (module == NULL) - fatal("Could not import __main__"); - - dict = PyModule_GetDict(module); - - result = PyRun_String("import m5.main", Py_file_input, dict, dict); - if (!result) { - PyErr_Print(); - return 1; - } - Py_DECREF(result); - - result = PyRun_String("m5.main.main()", Py_file_input, dict, dict); - if (!result) { - PyErr_Print(); - return 1; - } - Py_DECREF(result); - - if (Py_FlushLine()) - PyErr_Clear(); - - return 0; -} +#include "sim/init.hh" +// main() is now pretty stripped down and just sets up python and then +// calls initM5Python which loads the various embedded python modules +// into the python environment and then starts things running by +// calling m5Main. int main(int argc, char **argv) { - signal(SIGFPE, SIG_IGN); // may occur on misspeculated paths - signal(SIGTRAP, SIG_IGN); - signal(SIGUSR1, dumpStatsHandler); // dump intermediate stats - signal(SIGUSR2, dumprstStatsHandler); // dump and reset stats - signal(SIGINT, exitNowHandler); // dump final stats and exit - signal(SIGABRT, abortHandler); - - Py_SetProgramName(argv[0]); - - // default path to m5 python code is the currently executing - // file... Python ZipImporter will find embedded zip archive. - // The M5_ARCHIVE environment variable can be used to override this. - char *m5_archive = getenv("M5_ARCHIVE"); - string pythonpath = m5_archive ? m5_archive : argv[0]; + int ret; - char *oldpath = getenv("PYTHONPATH"); - if (oldpath != NULL) { - pythonpath += ":"; - pythonpath += oldpath; - } - - if (setenv("PYTHONPATH", pythonpath.c_str(), true) == -1) - fatal("setenv: %s\n", strerror(errno)); + // Initialize m5 special signal handling. + initSignals(); - const char *python_home = getenv("PYTHONHOME"); - if (!python_home) - python_home = PYTHONHOME; - Py_SetPythonHome(const_cast<char*>(python_home)); + Py_SetProgramName(argv[0]); // initialize embedded Python interpreter Py_Initialize(); - PySys_SetArgv(argc, argv); - // initialize SWIG modules - init_swig(); + // Initialize the embedded m5 python library + ret = initM5Python(); - int ret = python_main(); + if (ret == 0) { + // start m5 + ret = m5Main(argc, argv); + } // clean up Python intepreter. Py_Finalize(); diff --git a/src/sim/microcode_rom.hh b/src/sim/microcode_rom.hh new file mode 100644 index 000000000..be10de86b --- /dev/null +++ b/src/sim/microcode_rom.hh @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2008 The Regents of The University of Michigan + * All rights reserved. + * + * 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. + * + * Authors: Gabe Black + */ + +#ifndef __SIM_MICROCODE_ROM_HH__ +#define __SIM_MICROCODE_ROM_HH__ + +/* + * This is a generic stub microcode ROM ISAs can use if they don't need + * anything more. + */ + +#include "base/misc.hh" +#include "cpu/static_inst.hh" + +class MicrocodeRom +{ + public: + StaticInstPtr + fetchMicroop(MicroPC micropc, StaticInstPtr curMacroop) + { + panic("ROM based microcode isn't implemented.\n"); + } +}; + +#endif // __SIM_MICROCODE_ROM_HH__ diff --git a/src/sim/process.cc b/src/sim/process.cc index 16037b2f4..4be97f2f6 100644 --- a/src/sim/process.cc +++ b/src/sim/process.cc @@ -46,6 +46,7 @@ #include "mem/translating_port.hh" #include "params/Process.hh" #include "params/LiveProcess.hh" +#include "sim/debug.hh" #include "sim/process.hh" #include "sim/process_impl.hh" #include "sim/stats.hh" @@ -85,12 +86,23 @@ using namespace TheISA; // current number of allocated processes int num_processes = 0; +template<class IntType> +AuxVector<IntType>::AuxVector(IntType type, IntType val) +{ + a_type = TheISA::htog(type); + a_val = TheISA::htog(val); +} + +template class AuxVector<uint32_t>; +template class AuxVector<uint64_t>; + Process::Process(ProcessParams * params) : SimObject(params), system(params->system), checkpointRestored(false), max_stack_size(params->max_stack_size) { string in = params->input; string out = params->output; + string err = params->errout; // initialize file descriptors to default: same as simulator int stdin_fd, stdout_fd, stderr_fd; @@ -111,7 +123,16 @@ Process::Process(ProcessParams * params) else stdout_fd = Process::openOutputFile(out); - stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO; + if (err == "stdout" || err == "cout") + stderr_fd = STDOUT_FILENO; + else if (err == "stderr" || err == "cerr") + stderr_fd = STDERR_FILENO; + else if (err == "None") + stderr_fd = -1; + else if (err == out) + stderr_fd = stdout_fd; + else + stderr_fd = Process::openOutputFile(err); M5_pid = system->allocatePID(); // initialize first 3 fds (stdin, stdout, stderr) @@ -131,7 +152,7 @@ Process::Process(ProcessParams * params) fdo = &fd_map[STDERR_FILENO]; fdo->fd = stderr_fd; - fdo->filename = "STDERR"; + fdo->filename = err; fdo->flags = O_WRONLY; fdo->mode = -1; fdo->fileOffset = 0; @@ -182,7 +203,7 @@ Process::openInputFile(const string &filename) int Process::openOutputFile(const string &filename) { - int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0774); + int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664); if (fd == -1) { perror(NULL); @@ -193,33 +214,29 @@ Process::openOutputFile(const string &filename) return fd; } - -int -Process::registerThreadContext(ThreadContext *tc) +ThreadContext * +Process::findFreeContext() { - // add to list - int myIndex = threadContexts.size(); - threadContexts.push_back(tc); - - RemoteGDB *rgdb = new RemoteGDB(system, tc); - GDBListener *gdbl = new GDBListener(rgdb, 7000 + myIndex); - gdbl->listen(); - //gdbl->accept(); - - remoteGDB.push_back(rgdb); - - // return CPU number to caller - return myIndex; + int size = contextIds.size(); + ThreadContext *tc; + for (int i = 0; i < size; ++i) { + tc = system->getThreadContext(contextIds[i]); + if (tc->status() == ThreadContext::Unallocated) { + // inactive context, free to use + return tc; + } + } + return NULL; } void Process::startup() { - if (threadContexts.empty()) - fatal("Process %s is not associated with any CPUs!\n", name()); + if (contextIds.empty()) + fatal("Process %s is not associated with any HW contexts!\n", name()); // first thread context for this process... initialize & enable - ThreadContext *tc = threadContexts[0]; + ThreadContext *tc = system->getThreadContext(contextIds[0]); // mark this context as active so it will start ticking. tc->activate(0); @@ -232,17 +249,6 @@ Process::startup() initVirtMem->setPeer(mem_port); } -void -Process::replaceThreadContext(ThreadContext *tc, int tcIndex) -{ - if (tcIndex >= threadContexts.size()) { - panic("replaceThreadContext: bad tcIndex, %d >= %d\n", - tcIndex, threadContexts.size()); - } - - threadContexts[tcIndex] = tc; -} - // map simulator fd sim_fd to target fd tgt_fd void Process::dup_fd(int sim_fd, int tgt_fd) @@ -337,7 +343,7 @@ Process::checkAndAllocNextPage(Addr vaddr) if(stack_base - stack_min > 8*1024*1024) fatal("Over max stack size for one thread\n"); pTable->allocate(stack_min, TheISA::PageBytes); - warn("Increasing stack size by one page."); + inform("Increasing stack size by one page."); }; return true; } @@ -352,6 +358,7 @@ Process::fix_file_offsets() { Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO]; string in = fdo_stdin->filename; string out = fdo_stdout->filename; + string err = fdo_stderr->filename; // initialize file descriptors to default: same as simulator int stdin_fd, stdout_fd, stderr_fd; @@ -375,11 +382,23 @@ Process::fix_file_offsets() { stdout_fd = -1; else{ stdout_fd = Process::openOutputFile(out); - if (lseek(stdin_fd, fdo_stdout->fileOffset, SEEK_SET) < 0) - panic("Unable to seek to correct in file: %s", out); + if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0) + panic("Unable to seek to correct location in file: %s", out); } - stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO; + if (err == "stdout" || err == "cout") + stderr_fd = STDOUT_FILENO; + else if (err == "stderr" || err == "cerr") + stderr_fd = STDERR_FILENO; + else if (err == "None") + stderr_fd = -1; + else if (err == out) + stderr_fd = stdout_fd; + else { + stderr_fd = Process::openOutputFile(err); + if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0) + panic("Unable to seek to correct location in file: %s", err); + } fdo_stdin->fd = stdin_fd; fdo_stdout->fd = stdout_fd; @@ -597,17 +616,18 @@ LiveProcess::argsInit(int intSize, int pageSize) copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem); copyStringArray(envp, envp_array_base, env_data_base, initVirtMem); - assert(NumArgumentRegs >= 2); - threadContexts[0]->setIntReg(ArgumentReg[0], argc); - threadContexts[0]->setIntReg(ArgumentReg[1], argv_array_base); - threadContexts[0]->setIntReg(StackPointerReg, stack_min); + ThreadContext *tc = system->getThreadContext(contextIds[0]); + + setSyscallArg(tc, 0, argc); + setSyscallArg(tc, 1, argv_array_base); + tc->setIntReg(StackPointerReg, stack_min); Addr prog_entry = objFile->entryPoint(); - threadContexts[0]->setPC(prog_entry); - threadContexts[0]->setNextPC(prog_entry + sizeof(MachInst)); + tc->setPC(prog_entry); + tc->setNextPC(prog_entry + sizeof(MachInst)); #if THE_ISA != ALPHA_ISA //e.g. MIPS or Sparc - threadContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst))); + tc->setNextNPC(prog_entry + (2 * sizeof(MachInst))); #endif num_processes++; @@ -643,18 +663,17 @@ LiveProcess::create(LiveProcessParams * params) "executable as a static binary and try again.\n"); #if THE_ISA == ALPHA_ISA - if (objFile->hasTLS()) - fatal("Object file has a TLS section and single threaded TLS is not\n" - " currently supported for Alpha! Please recompile your " - "executable with \n a non-TLS toolchain.\n"); - if (objFile->getArch() != ObjectFile::Alpha) fatal("Object file architecture does not match compiled ISA (Alpha)."); + switch (objFile->getOpSys()) { case ObjectFile::Tru64: process = new AlphaTru64Process(params, objFile); break; + case ObjectFile::UnknownOpSys: + warn("Unknown operating system; assuming Linux."); + // fall through case ObjectFile::Linux: process = new AlphaLinuxProcess(params, objFile); break; @@ -663,9 +682,13 @@ LiveProcess::create(LiveProcessParams * params) fatal("Unknown/unsupported operating system."); } #elif THE_ISA == SPARC_ISA - if (objFile->getArch() != ObjectFile::SPARC64 && objFile->getArch() != ObjectFile::SPARC32) + if (objFile->getArch() != ObjectFile::SPARC64 && + objFile->getArch() != ObjectFile::SPARC32) fatal("Object file architecture does not match compiled ISA (SPARC)."); switch (objFile->getOpSys()) { + case ObjectFile::UnknownOpSys: + warn("Unknown operating system; assuming Linux."); + // fall through case ObjectFile::Linux: if (objFile->getArch() == ObjectFile::SPARC64) { process = new Sparc64LinuxProcess(params, objFile); @@ -678,16 +701,26 @@ LiveProcess::create(LiveProcessParams * params) case ObjectFile::Solaris: process = new SparcSolarisProcess(params, objFile); break; + default: fatal("Unknown/unsupported operating system."); } #elif THE_ISA == X86_ISA - if (objFile->getArch() != ObjectFile::X86) + if (objFile->getArch() != ObjectFile::X86_64 && + objFile->getArch() != ObjectFile::I386) fatal("Object file architecture does not match compiled ISA (x86)."); switch (objFile->getOpSys()) { + case ObjectFile::UnknownOpSys: + warn("Unknown operating system; assuming Linux."); + // fall through case ObjectFile::Linux: - process = new X86LinuxProcess(params, objFile); + if (objFile->getArch() == ObjectFile::X86_64) { + process = new X86_64LinuxProcess(params, objFile); + } else { + process = new I386LinuxProcess(params, objFile); + } break; + default: fatal("Unknown/unsupported operating system."); } @@ -695,6 +728,9 @@ LiveProcess::create(LiveProcessParams * params) if (objFile->getArch() != ObjectFile::Mips) fatal("Object file architecture does not match compiled ISA (MIPS)."); switch (objFile->getOpSys()) { + case ObjectFile::UnknownOpSys: + warn("Unknown operating system; assuming Linux."); + // fall through case ObjectFile::Linux: process = new MipsLinuxProcess(params, objFile); break; @@ -706,6 +742,9 @@ LiveProcess::create(LiveProcessParams * params) if (objFile->getArch() != ObjectFile::Arm) fatal("Object file architecture does not match compiled ISA (ARM)."); switch (objFile->getOpSys()) { + case ObjectFile::UnknownOpSys: + warn("Unknown operating system; assuming Linux."); + // fall through case ObjectFile::Linux: process = new ArmLinuxProcess(params, objFile); break; diff --git a/src/sim/process.hh b/src/sim/process.hh index 29d6e5aae..527209467 100644 --- a/src/sim/process.hh +++ b/src/sim/process.hh @@ -44,9 +44,11 @@ #include <string> #include <vector> +#include "arch/types.hh" #include "base/statistics.hh" #include "sim/host.hh" #include "sim/sim_object.hh" +#include "sim/syscallreturn.hh" class GDBListener; class PageTable; @@ -61,6 +63,18 @@ namespace TheISA class RemoteGDB; } +template<class IntType> +struct AuxVector +{ + IntType a_type; + IntType a_val; + + AuxVector() + {} + + AuxVector(IntType type, IntType val); +}; + class Process : public SimObject { public: @@ -77,7 +91,7 @@ class Process : public SimObject bool checkpointRestored; // thread contexts associated with this process - std::vector<ThreadContext *> threadContexts; + std::vector<int> contextIds; // remote gdb objects std::vector<TheISA::RemoteGDB *> remoteGDB; @@ -85,7 +99,7 @@ class Process : public SimObject bool breakpoint(); // number of CPUs (esxec contexts, really) assigned to this process. - unsigned int numCpus() { return threadContexts.size(); } + unsigned int numCpus() { return contextIds.size(); } // record of blocked context struct WaitRec @@ -95,17 +109,17 @@ class Process : public SimObject WaitRec(Addr chan, ThreadContext *ctx) : waitChan(chan), waitingContext(ctx) - { } + { } }; // list of all blocked contexts std::list<WaitRec> waitList; - Addr brk_point; // top of the data segment + Addr brk_point; // top of the data segment - Addr stack_base; // stack segment base (highest address) - unsigned stack_size; // initial stack size - Addr stack_min; // lowest address accessed on the stack + Addr stack_base; // stack segment base (highest address) + unsigned stack_size; // initial stack size + Addr stack_min; // lowest address accessed on the stack // The maximum size allowed for the stack. Addr max_stack_size; @@ -121,9 +135,9 @@ class Process : public SimObject Addr nxm_start; Addr nxm_end; - std::string prog_fname; // file name + std::string prog_fname; // file name - Stats::Scalar<> num_syscalls; // number of syscalls executed + Stats::Scalar num_syscalls; // number of syscalls executed protected: @@ -187,12 +201,15 @@ class Process : public SimObject // override of virtual SimObject method: register statistics virtual void regStats(); - // register a thread context for this process. - // returns tc's cpu number (index into threadContexts[]) - int registerThreadContext(ThreadContext *tc); - + // After getting registered with system object, tell process which + // system-wide context id it is assigned. + void assignThreadContext(int context_id) + { + contextIds.push_back(context_id); + } - void replaceThreadContext(ThreadContext *tc, int tcIndex); + // Find a free context to use + ThreadContext * findFreeContext(); // map simulator fd sim_fd to target fd tgt_fd void dup_fd(int sim_fd, int tgt_fd); @@ -303,7 +320,14 @@ class LiveProcess : public Process return full + filename; } + std::string getcwd() const { return cwd; } + virtual void syscall(int64_t callnum, ThreadContext *tc); + virtual TheISA::IntReg getSyscallArg(ThreadContext *tc, int i) = 0; + virtual void setSyscallArg(ThreadContext *tc, + int i, TheISA::IntReg val) = 0; + virtual void setSyscallReturn(ThreadContext *tc, + SyscallReturn return_value) = 0; virtual SyscallDesc* getDesc(int callnum) = 0; diff --git a/src/sim/pseudo_inst.cc b/src/sim/pseudo_inst.cc index 157d39e93..3c2a27f54 100644 --- a/src/sim/pseudo_inst.cc +++ b/src/sim/pseudo_inst.cc @@ -35,275 +35,291 @@ #include <fstream> #include <string> +#include "arch/kernel_stats.hh" #include "arch/vtophys.hh" -#include "base/annotate.hh" +#include "base/debug.hh" #include "cpu/base.hh" #include "cpu/thread_context.hh" #include "cpu/quiesce_event.hh" -#include "arch/kernel_stats.hh" +#include "params/BaseCPU.hh" #include "sim/pseudo_inst.hh" #include "sim/serialize.hh" +#include "sim/sim_events.hh" #include "sim/sim_exit.hh" #include "sim/stat_control.hh" #include "sim/stats.hh" #include "sim/system.hh" -#include "sim/debug.hh" +#if FULL_SYSTEM #include "sim/vptr.hh" +#endif using namespace std; using namespace Stats; using namespace TheISA; -namespace PseudoInst +namespace PseudoInst { + +#if FULL_SYSTEM + +void +arm(ThreadContext *tc) { - void - arm(ThreadContext *tc) - { - if (tc->getKernelStats()) - tc->getKernelStats()->arm(); - } + if (tc->getKernelStats()) + tc->getKernelStats()->arm(); +} - void - quiesce(ThreadContext *tc) - { - if (!tc->getCpuPtr()->params->do_quiesce) - return; +void +quiesce(ThreadContext *tc) +{ + if (!tc->getCpuPtr()->params()->do_quiesce) + return; - DPRINTF(Quiesce, "%s: quiesce()\n", tc->getCpuPtr()->name()); + DPRINTF(Quiesce, "%s: quiesce()\n", tc->getCpuPtr()->name()); - tc->suspend(); - if (tc->getKernelStats()) - tc->getKernelStats()->quiesce(); - } + tc->suspend(); + if (tc->getKernelStats()) + tc->getKernelStats()->quiesce(); +} - void - quiesceNs(ThreadContext *tc, uint64_t ns) - { - if (!tc->getCpuPtr()->params->do_quiesce || ns == 0) - return; +void +quiesceNs(ThreadContext *tc, uint64_t ns) +{ + if (!tc->getCpuPtr()->params()->do_quiesce || ns == 0) + return; - EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); + EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); - Tick resume = curTick + Clock::Int::ns * ns; + Tick resume = curTick + Clock::Int::ns * ns; - quiesceEvent->reschedule(resume, true); + mainEventQueue.reschedule(quiesceEvent, resume, true); - DPRINTF(Quiesce, "%s: quiesceNs(%d) until %d\n", - tc->getCpuPtr()->name(), ns, resume); + DPRINTF(Quiesce, "%s: quiesceNs(%d) until %d\n", + tc->getCpuPtr()->name(), ns, resume); - tc->suspend(); - if (tc->getKernelStats()) - tc->getKernelStats()->quiesce(); - } + tc->suspend(); + if (tc->getKernelStats()) + tc->getKernelStats()->quiesce(); +} - void - quiesceCycles(ThreadContext *tc, uint64_t cycles) - { - if (!tc->getCpuPtr()->params->do_quiesce || cycles == 0) - return; +void +quiesceCycles(ThreadContext *tc, uint64_t cycles) +{ + if (!tc->getCpuPtr()->params()->do_quiesce || cycles == 0) + return; - EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); + EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent(); - Tick resume = curTick + tc->getCpuPtr()->ticks(cycles); + Tick resume = curTick + tc->getCpuPtr()->ticks(cycles); - quiesceEvent->reschedule(resume, true); + mainEventQueue.reschedule(quiesceEvent, resume, true); - DPRINTF(Quiesce, "%s: quiesceCycles(%d) until %d\n", - tc->getCpuPtr()->name(), cycles, resume); + DPRINTF(Quiesce, "%s: quiesceCycles(%d) until %d\n", + tc->getCpuPtr()->name(), cycles, resume); - tc->suspend(); - if (tc->getKernelStats()) - tc->getKernelStats()->quiesce(); - } + tc->suspend(); + if (tc->getKernelStats()) + tc->getKernelStats()->quiesce(); +} - uint64_t - quiesceTime(ThreadContext *tc) - { - return (tc->readLastActivate() - tc->readLastSuspend()) / Clock::Int::ns; - } +uint64_t +quiesceTime(ThreadContext *tc) +{ + return (tc->readLastActivate() - tc->readLastSuspend()) / Clock::Int::ns; +} - void - m5exit_old(ThreadContext *tc) - { - exitSimLoop("m5_exit_old instruction encountered"); - } +#endif - void - m5exit(ThreadContext *tc, Tick delay) - { - Tick when = curTick + delay * Clock::Int::ns; - schedExitSimLoop("m5_exit instruction encountered", when); - } +uint64_t +rpns(ThreadContext *tc) +{ + return curTick / Clock::Int::ns; +} + +void +wakeCPU(ThreadContext *tc, uint64_t cpuid) +{ + System *sys = tc->getSystemPtr(); + ThreadContext *other_tc = sys->threadContexts[cpuid]; + if (other_tc->status() == ThreadContext::Suspended) + other_tc->activate(); +} - void - loadsymbol(ThreadContext *tc) - { - const string &filename = tc->getCpuPtr()->system->params()->symbolfile; - if (filename.empty()) { - return; - } +void +m5exit(ThreadContext *tc, Tick delay) +{ + Tick when = curTick + delay * Clock::Int::ns; + Event *event = new SimLoopExitEvent("m5_exit instruction encountered", 0); + mainEventQueue.schedule(event, when); +} + +#if FULL_SYSTEM + +void +loadsymbol(ThreadContext *tc) +{ + const string &filename = tc->getCpuPtr()->system->params()->symbolfile; + if (filename.empty()) { + return; + } - std::string buffer; - ifstream file(filename.c_str()); + std::string buffer; + ifstream file(filename.c_str()); - if (!file) - fatal("file error: Can't open symbol table file %s\n", filename); + if (!file) + fatal("file error: Can't open symbol table file %s\n", filename); - while (!file.eof()) { - getline(file, buffer); + while (!file.eof()) { + getline(file, buffer); - if (buffer.empty()) - continue; + if (buffer.empty()) + continue; - int idx = buffer.find(' '); - if (idx == string::npos) - continue; + int idx = buffer.find(' '); + if (idx == string::npos) + continue; - string address = "0x" + buffer.substr(0, idx); - eat_white(address); - if (address.empty()) - continue; + string address = "0x" + buffer.substr(0, idx); + eat_white(address); + if (address.empty()) + continue; - // Skip over letter and space - string symbol = buffer.substr(idx + 3); - eat_white(symbol); - if (symbol.empty()) - continue; + // Skip over letter and space + string symbol = buffer.substr(idx + 3); + eat_white(symbol); + if (symbol.empty()) + continue; - Addr addr; - if (!to_number(address, addr)) - continue; + Addr addr; + if (!to_number(address, addr)) + continue; - if (!tc->getSystemPtr()->kernelSymtab->insert(addr, symbol)) - continue; + if (!tc->getSystemPtr()->kernelSymtab->insert(addr, symbol)) + continue; - DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); - } - file.close(); + DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); } + file.close(); +} - void - resetstats(ThreadContext *tc, Tick delay, Tick period) - { - if (!tc->getCpuPtr()->params->do_statistics_insts) - return; +void +addsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr) +{ + char symb[100]; + CopyStringOut(tc, symb, symbolAddr, 100); + std::string symbol(symb); + DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); - Tick when = curTick + delay * Clock::Int::ns; - Tick repeat = period * Clock::Int::ns; + tc->getSystemPtr()->kernelSymtab->insert(addr,symbol); + debugSymbolTable->insert(addr,symbol); +} - Stats::StatEvent(false, true, when, repeat); - } +#endif - void - dumpstats(ThreadContext *tc, Tick delay, Tick period) - { - if (!tc->getCpuPtr()->params->do_statistics_insts) - return; +void +resetstats(ThreadContext *tc, Tick delay, Tick period) +{ + if (!tc->getCpuPtr()->params()->do_statistics_insts) + return; - Tick when = curTick + delay * Clock::Int::ns; - Tick repeat = period * Clock::Int::ns; - Stats::StatEvent(true, false, when, repeat); - } + Tick when = curTick + delay * Clock::Int::ns; + Tick repeat = period * Clock::Int::ns; - void - addsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr) - { - char symb[100]; - CopyStringOut(tc, symb, symbolAddr, 100); - std::string symbol(symb); + Stats::StatEvent(false, true, when, repeat); +} - DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr); +void +dumpstats(ThreadContext *tc, Tick delay, Tick period) +{ + if (!tc->getCpuPtr()->params()->do_statistics_insts) + return; - tc->getSystemPtr()->kernelSymtab->insert(addr,symbol); - } - void - anBegin(ThreadContext *tc, uint64_t cur) - { - Annotate::annotations.add(tc->getSystemPtr(), 0, cur >> 32, cur & - 0xFFFFFFFF, 0,0); - } + Tick when = curTick + delay * Clock::Int::ns; + Tick repeat = period * Clock::Int::ns; - void - anWait(ThreadContext *tc, uint64_t cur, uint64_t wait) - { - Annotate::annotations.add(tc->getSystemPtr(), 0, cur >> 32, cur & - 0xFFFFFFFF, wait >> 32, wait & 0xFFFFFFFF); - } + Stats::StatEvent(true, false, when, repeat); +} +void +dumpresetstats(ThreadContext *tc, Tick delay, Tick period) +{ + if (!tc->getCpuPtr()->params()->do_statistics_insts) + return; - void - dumpresetstats(ThreadContext *tc, Tick delay, Tick period) - { - if (!tc->getCpuPtr()->params->do_statistics_insts) - return; + Tick when = curTick + delay * Clock::Int::ns; + Tick repeat = period * Clock::Int::ns; - Tick when = curTick + delay * Clock::Int::ns; - Tick repeat = period * Clock::Int::ns; + Stats::StatEvent(true, true, when, repeat); +} - Stats::StatEvent(true, true, when, repeat); - } +void +m5checkpoint(ThreadContext *tc, Tick delay, Tick period) +{ + if (!tc->getCpuPtr()->params()->do_checkpoint_insts) + return; - void - m5checkpoint(ThreadContext *tc, Tick delay, Tick period) - { - if (!tc->getCpuPtr()->params->do_checkpoint_insts) - return; + Tick when = curTick + delay * Clock::Int::ns; + Tick repeat = period * Clock::Int::ns; - Tick when = curTick + delay * Clock::Int::ns; - Tick repeat = period * Clock::Int::ns; + Event *event = new SimLoopExitEvent("checkpoint", 0, repeat); + mainEventQueue.schedule(event, when); +} - schedExitSimLoop("checkpoint", when, repeat); - } +#if FULL_SYSTEM - uint64_t - readfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset) - { - const string &file = tc->getSystemPtr()->params()->readfile; - if (file.empty()) { - return ULL(0); - } - - uint64_t result = 0; - - int fd = ::open(file.c_str(), O_RDONLY, 0); - if (fd < 0) - panic("could not open file %s\n", file); - - if (::lseek(fd, offset, SEEK_SET) < 0) - panic("could not seek: %s", strerror(errno)); - - char *buf = new char[len]; - char *p = buf; - while (len > 0) { - int bytes = ::read(fd, p, len); - if (bytes <= 0) - break; - - p += bytes; - result += bytes; - len -= bytes; - } - - close(fd); - CopyIn(tc, vaddr, buf, result); - delete [] buf; - return result; +uint64_t +readfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset) +{ + const string &file = tc->getSystemPtr()->params()->readfile; + if (file.empty()) { + return ULL(0); } - void debugbreak(ThreadContext *tc) - { - debug_break(); - } + uint64_t result = 0; - void switchcpu(ThreadContext *tc) - { - exitSimLoop("switchcpu"); + int fd = ::open(file.c_str(), O_RDONLY, 0); + if (fd < 0) + panic("could not open file %s\n", file); + + if (::lseek(fd, offset, SEEK_SET) < 0) + panic("could not seek: %s", strerror(errno)); + + char *buf = new char[len]; + char *p = buf; + while (len > 0) { + int bytes = ::read(fd, p, len); + if (bytes <= 0) + break; + + p += bytes; + result += bytes; + len -= bytes; } + + close(fd); + CopyIn(tc, vaddr, buf, result); + delete [] buf; + return result; } + +#endif + +void +debugbreak(ThreadContext *tc) +{ + debug_break(); +} + +void +switchcpu(ThreadContext *tc) +{ + exitSimLoop("switchcpu"); +} + +/* namespace PseudoInst */ } diff --git a/src/sim/pseudo_inst.hh b/src/sim/pseudo_inst.hh index 93021abad..30996fc3b 100644 --- a/src/sim/pseudo_inst.hh +++ b/src/sim/pseudo_inst.hh @@ -33,31 +33,35 @@ class ThreadContext; //We need the "Tick" and "Addr" data types from here #include "sim/host.hh" -namespace PseudoInst -{ - /** - * @todo these externs are only here for a hack in fullCPU::takeOver... - */ - extern bool doStatisticsInsts; - extern bool doCheckpointInsts; - extern bool doQuiesce; +namespace PseudoInst { - void arm(ThreadContext *tc); - void quiesce(ThreadContext *tc); - void quiesceNs(ThreadContext *tc, uint64_t ns); - void quiesceCycles(ThreadContext *tc, uint64_t cycles); - uint64_t quiesceTime(ThreadContext *tc); - void m5exit(ThreadContext *tc, Tick delay); - void m5exit_old(ThreadContext *tc); - void loadsymbol(ThreadContext *xc); - void resetstats(ThreadContext *tc, Tick delay, Tick period); - void dumpstats(ThreadContext *tc, Tick delay, Tick period); - void dumpresetstats(ThreadContext *tc, Tick delay, Tick period); - void m5checkpoint(ThreadContext *tc, Tick delay, Tick period); - uint64_t readfile(ThreadContext *tc, Addr vaddr, uint64_t len, uint64_t offset); - void debugbreak(ThreadContext *tc); - void switchcpu(ThreadContext *tc); - void addsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr); - void anBegin(ThreadContext *tc, uint64_t cur); - void anWait(ThreadContext *tc, uint64_t cur, uint64_t wait); -} +/** + * @todo these externs are only here for a hack in fullCPU::takeOver... + */ +extern bool doStatisticsInsts; +extern bool doCheckpointInsts; +extern bool doQuiesce; + +#if FULL_SYSTEM +void arm(ThreadContext *tc); +void quiesce(ThreadContext *tc); +void quiesceNs(ThreadContext *tc, uint64_t ns); +void quiesceCycles(ThreadContext *tc, uint64_t cycles); +uint64_t quiesceTime(ThreadContext *tc); +uint64_t readfile(ThreadContext *tc, Addr vaddr, uint64_t len, + uint64_t offset); +void loadsymbol(ThreadContext *xc); +void addsymbol(ThreadContext *tc, Addr addr, Addr symbolAddr); +#endif + +uint64_t rpns(ThreadContext *tc); +void wakeCPU(ThreadContext *tc, uint64_t cpuid); +void m5exit(ThreadContext *tc, Tick delay); +void resetstats(ThreadContext *tc, Tick delay, Tick period); +void dumpstats(ThreadContext *tc, Tick delay, Tick period); +void dumpresetstats(ThreadContext *tc, Tick delay, Tick period); +void m5checkpoint(ThreadContext *tc, Tick delay, Tick period); +void debugbreak(ThreadContext *tc); +void switchcpu(ThreadContext *tc); + +/* namespace PseudoInst */ } diff --git a/src/sim/serialize.cc b/src/sim/serialize.cc index a0d17f489..481b9af3b 100644 --- a/src/sim/serialize.cc +++ b/src/sim/serialize.cc @@ -321,23 +321,23 @@ objParamIn(Checkpoint *cp, const std::string §ion, } -#define INSTANTIATE_PARAM_TEMPLATES(type) \ -template void \ -paramOut(ostream &os, const std::string &name, type const ¶m); \ -template void \ -paramIn(Checkpoint *cp, const std::string §ion, \ - const std::string &name, type & param); \ -template void \ -arrayParamOut(ostream &os, const std::string &name, \ - type const *param, int size); \ -template void \ -arrayParamIn(Checkpoint *cp, const std::string §ion, \ +#define INSTANTIATE_PARAM_TEMPLATES(type) \ +template void \ +paramOut(ostream &os, const std::string &name, type const ¶m); \ +template void \ +paramIn(Checkpoint *cp, const std::string §ion, \ + const std::string &name, type & param); \ +template void \ +arrayParamOut(ostream &os, const std::string &name, \ + type const *param, int size); \ +template void \ +arrayParamIn(Checkpoint *cp, const std::string §ion, \ const std::string &name, type *param, int size); \ -template void \ -arrayParamOut(ostream &os, const std::string &name, \ - const std::vector<type> ¶m); \ -template void \ -arrayParamIn(Checkpoint *cp, const std::string §ion, \ +template void \ +arrayParamOut(ostream &os, const std::string &name, \ + const std::vector<type> ¶m); \ +template void \ +arrayParamIn(Checkpoint *cp, const std::string §ion, \ const std::string &name, std::vector<type> ¶m); INSTANTIATE_PARAM_TEMPLATES(signed char) @@ -351,6 +351,8 @@ INSTANTIATE_PARAM_TEMPLATES(unsigned long) INSTANTIATE_PARAM_TEMPLATES(signed long long) INSTANTIATE_PARAM_TEMPLATES(unsigned long long) INSTANTIATE_PARAM_TEMPLATES(bool) +INSTANTIATE_PARAM_TEMPLATES(float) +INSTANTIATE_PARAM_TEMPLATES(double) INSTANTIATE_PARAM_TEMPLATES(string) @@ -394,6 +396,24 @@ Globals::unserialize(Checkpoint *cp) mainEventQueue.unserialize(cp, "MainEventQueue"); } +Serializable::Serializable() +{ +} + +Serializable::~Serializable() +{ +} + +void +Serializable::serialize(std::ostream &os) +{ +} + +void +Serializable::unserialize(Checkpoint *cp, const std::string §ion) +{ +} + void Serializable::serializeAll(const std::string &cpt_dir) { @@ -405,6 +425,8 @@ Serializable::serializeAll(const std::string &cpt_dir) string cpt_file = dir + Checkpoint::baseFilename; ofstream outstream(cpt_file.c_str()); time_t t = time(NULL); + if (!outstream.is_open()) + fatal("Unable to open file %s for writing\n", cpt_file.c_str()); outstream << "// checkpoint generated: " << ctime(&t); globals.serialize(outstream); diff --git a/src/sim/serialize.hh b/src/sim/serialize.hh index e72eedb30..c33633065 100644 --- a/src/sim/serialize.hh +++ b/src/sim/serialize.hh @@ -82,33 +82,33 @@ objParamIn(Checkpoint *cp, const std::string §ion, // These macros are streamlined to use in serialize/unserialize // functions. It's assumed that serialize() has a parameter 'os' for // the ostream, and unserialize() has parameters 'cp' and 'section'. -#define SERIALIZE_SCALAR(scalar) paramOut(os, #scalar, scalar) +#define SERIALIZE_SCALAR(scalar) paramOut(os, #scalar, scalar) -#define UNSERIALIZE_SCALAR(scalar) paramIn(cp, section, #scalar, scalar) +#define UNSERIALIZE_SCALAR(scalar) paramIn(cp, section, #scalar, scalar) // ENUMs are like SCALARs, but we cast them to ints on the way out -#define SERIALIZE_ENUM(scalar) paramOut(os, #scalar, (int)scalar) +#define SERIALIZE_ENUM(scalar) paramOut(os, #scalar, (int)scalar) -#define UNSERIALIZE_ENUM(scalar) \ - do { \ - int tmp; \ - paramIn(cp, section, #scalar, tmp); \ - scalar = (typeof(scalar))tmp; \ +#define UNSERIALIZE_ENUM(scalar) \ + do { \ + int tmp; \ + paramIn(cp, section, #scalar, tmp); \ + scalar = (typeof(scalar))tmp; \ } while (0) -#define SERIALIZE_ARRAY(member, size) \ +#define SERIALIZE_ARRAY(member, size) \ arrayParamOut(os, #member, member, size) -#define UNSERIALIZE_ARRAY(member, size) \ +#define UNSERIALIZE_ARRAY(member, size) \ arrayParamIn(cp, section, #member, member, size) -#define SERIALIZE_OBJPTR(objptr) paramOut(os, #objptr, (objptr)->name()) +#define SERIALIZE_OBJPTR(objptr) paramOut(os, #objptr, (objptr)->name()) -#define UNSERIALIZE_OBJPTR(objptr) \ - do { \ - SimObject *sptr; \ - objParamIn(cp, section, #objptr, sptr); \ - objptr = dynamic_cast<typeof(objptr)>(sptr); \ +#define UNSERIALIZE_OBJPTR(objptr) \ + do { \ + SimObject *sptr; \ + objParamIn(cp, section, #objptr, sptr); \ + objptr = dynamic_cast<typeof(objptr)>(sptr); \ } while (0) /* @@ -121,17 +121,16 @@ class Serializable void nameOut(std::ostream &os, const std::string &_name); public: - Serializable() {} - virtual ~Serializable() {} + Serializable(); + virtual ~Serializable(); // manditory virtual function, so objects must provide names virtual const std::string name() const = 0; - virtual void serialize(std::ostream &os) {} - virtual void unserialize(Checkpoint *cp, const std::string §ion) {} + virtual void serialize(std::ostream &os); + virtual void unserialize(Checkpoint *cp, const std::string §ion); - static Serializable *create(Checkpoint *cp, - const std::string §ion); + static Serializable *create(Checkpoint *cp, const std::string §ion); static int ckptCount; static int ckptMaxCount; @@ -211,8 +210,8 @@ class SerializableClass // SerializableBuilder and SerializableClass objects // -#define REGISTER_SERIALIZEABLE(CLASS_NAME, OBJ_CLASS) \ -SerializableClass the##OBJ_CLASS##Class(CLASS_NAME, \ +#define REGISTER_SERIALIZEABLE(CLASS_NAME, OBJ_CLASS) \ +SerializableClass the##OBJ_CLASS##Class(CLASS_NAME, \ OBJ_CLASS::createForUnserialize); void diff --git a/src/sim/sim_events.cc b/src/sim/sim_events.cc index 09087ef84..a6e3f0af3 100644 --- a/src/sim/sim_events.cc +++ b/src/sim/sim_events.cc @@ -40,6 +40,13 @@ using namespace std; +SimLoopExitEvent::SimLoopExitEvent(const std::string &_cause, int c, Tick r) + : Event(Sim_Exit_Pri), cause(_cause), code(c), repeat(r) +{ + setFlags(IsExitEvent); +} + + // // handle termination event // @@ -49,7 +56,7 @@ SimLoopExitEvent::process() // if this got scheduled on a different queue (e.g. the committed // instruction queue) then make a corresponding event on the main // queue. - if (theQueue() != &mainEventQueue) { + if (!getFlags(IsMainQueue)) { exitSimLoop(cause, code); delete this; } @@ -59,7 +66,8 @@ SimLoopExitEvent::process() // but if you are doing this on intervals, don't forget to make another if (repeat) { - schedule(curTick + repeat); + assert(getFlags(IsMainQueue)); + mainEventQueue.schedule(this, curTick + repeat); } } @@ -70,43 +78,32 @@ SimLoopExitEvent::description() const return "simulation loop exit"; } -SimLoopExitEvent * -schedExitSimLoop(const std::string &message, Tick when, Tick repeat, - EventQueue *q, int exit_code) -{ - if (q == NULL) - q = &mainEventQueue; - - return new SimLoopExitEvent(q, when, repeat, message, exit_code); -} - void exitSimLoop(const std::string &message, int exit_code) { - schedExitSimLoop(message, curTick, 0, NULL, exit_code); + Event *event = new SimLoopExitEvent(message, exit_code); + mainEventQueue.schedule(event, curTick); } +CountedDrainEvent::CountedDrainEvent() + : SimLoopExitEvent("Finished drain", 0), count(0) +{ } + void CountedDrainEvent::process() { - if (--count == 0) { - exitSimLoop("Finished drain"); - } + if (--count == 0) + exitSimLoop(cause, code); } // // constructor: automatically schedules at specified time // -CountedExitEvent::CountedExitEvent(EventQueue *q, const std::string &_cause, - Tick _when, int &_downCounter) - : Event(q, Sim_Exit_Pri), - cause(_cause), - downCounter(_downCounter) +CountedExitEvent::CountedExitEvent(const std::string &_cause, int &counter) + : Event(Sim_Exit_Pri), cause(_cause), downCounter(counter) { // catch stupid mistakes assert(downCounter > 0); - - schedule(_when); } @@ -128,9 +125,11 @@ CountedExitEvent::description() const return "counted exit"; } -#ifdef CHECK_SWAP_CYCLES -new CheckSwapEvent(&mainEventQueue, CHECK_SWAP_CYCLES); -#endif +CheckSwapEvent::CheckSwapEvent(int ival) + : interval(ival) +{ + mainEventQueue.schedule(this, curTick + interval); +} void CheckSwapEvent::process() @@ -149,7 +148,8 @@ CheckSwapEvent::process() exitSimLoop("Lack of swap space"); } - schedule(curTick + interval); + assert(getFlags(IsMainQueue)); + mainEventQueue.schedule(this, curTick + interval); } const char * diff --git a/src/sim/sim_events.hh b/src/sim/sim_events.hh index 58ec963c0..ffd31f385 100644 --- a/src/sim/sim_events.hh +++ b/src/sim/sim_events.hh @@ -38,35 +38,19 @@ // class SimLoopExitEvent : public Event { - private: + protected: // string explaining why we're terminating std::string cause; int code; Tick repeat; public: - // Default constructor. Only really used for derived classes. - SimLoopExitEvent() - : Event(&mainEventQueue, Sim_Exit_Pri) - { } - - SimLoopExitEvent(EventQueue *q, - Tick _when, Tick _repeat, const std::string &_cause, - int c = 0) - : Event(q, Sim_Exit_Pri), cause(_cause), - code(c), repeat(_repeat) - { setFlags(IsExitEvent); schedule(_when); } - -// SimLoopExitEvent(EventQueue *q, -// Tick _when, const std::string &_cause, -// Tick _repeat = 0, int c = 0) -// : Event(q, Sim_Exit_Pri), cause(_cause), code(c), repeat(_repeat) -// { setFlags(IsExitEvent); schedule(_when); } + SimLoopExitEvent(const std::string &_cause, int c, Tick repeat = 0); std::string getCause() { return cause; } int getCode() { return code; } - void process(); // process event + void process(); // process event virtual const char *description() const; }; @@ -76,10 +60,10 @@ class CountedDrainEvent : public SimLoopExitEvent private: // Count of how many objects have not yet drained int count; + public: - CountedDrainEvent() - : count(0) - { } + CountedDrainEvent(); + void process(); void setCount(int _count) { count = _count; } @@ -95,14 +79,13 @@ class CountedDrainEvent : public SimLoopExitEvent class CountedExitEvent : public Event { private: - std::string cause; // string explaining why we're terminating - int &downCounter; // decrement & terminate if zero + std::string cause; // string explaining why we're terminating + int &downCounter; // decrement & terminate if zero public: - CountedExitEvent(EventQueue *q, const std::string &_cause, - Tick _when, int &_downCounter); + CountedExitEvent(const std::string &_cause, int &_downCounter); - void process(); // process event + void process(); // process event virtual const char *description() const; }; @@ -116,11 +99,8 @@ class CheckSwapEvent : public Event int interval; public: - CheckSwapEvent(EventQueue *q, int ival) - : Event(q), interval(ival) - { schedule(curTick + interval); } - - void process(); // process event + CheckSwapEvent(int ival); + void process(); // process event virtual const char *description() const; }; diff --git a/src/sim/sim_exit.hh b/src/sim/sim_exit.hh index d4b31d1ea..174b00024 100644 --- a/src/sim/sim_exit.hh +++ b/src/sim/sim_exit.hh @@ -46,14 +46,6 @@ class SimLoopExitEvent; void registerExitCallback(Callback *); /// Schedule an event to exit the simulation loop (returning to -/// Python) at the indicated tick. The message and exit_code -/// parameters are saved in the SimLoopExitEvent to indicate why the -/// exit occurred. -SimLoopExitEvent *schedExitSimLoop(const std::string &message, Tick when, - Tick repeat = 0, EventQueue *q = NULL, - int exit_code = 0); - -/// Schedule an event to exit the simulation loop (returning to /// Python) at the end of the current cycle (curTick). The message /// and exit_code parameters are saved in the SimLoopExitEvent to /// indicate why the exit occurred. diff --git a/src/sim/sim_object.cc b/src/sim/sim_object.cc index a835aee5b..dad8f6e8b 100644 --- a/src/sim/sim_object.cc +++ b/src/sim/sim_object.cc @@ -59,7 +59,7 @@ SimObject::SimObjectList SimObject::simObjectList; // SimObject constructor: used to maintain static simObjectList // SimObject::SimObject(const Params *p) - : _params(p) + : EventManager(p->eventq), _params(p) { #ifdef DEBUG doDebugBreak = false; @@ -69,14 +69,6 @@ SimObject::SimObject(const Params *p) state = Running; } -SimObjectParams * -SimObject::makeParams(const std::string &name) -{ - SimObjectParams *params = new SimObjectParams; - params->name = name; - return params; -} - void SimObject::init() { diff --git a/src/sim/sim_object.hh b/src/sim/sim_object.hh index ec565ce82..d6d08f255 100644 --- a/src/sim/sim_object.hh +++ b/src/sim/sim_object.hh @@ -36,12 +36,14 @@ #ifndef __SIM_OBJECT_HH__ #define __SIM_OBJECT_HH__ -#include <map> +#include <iostream> #include <list> +#include <map> +#include <string> #include <vector> -#include <iostream> #include "params/SimObject.hh" +#include "sim/eventq.hh" #include "sim/serialize.hh" #include "sim/startup.hh" @@ -53,7 +55,8 @@ class Event; * correspond to physical components and can be specified via the * config file (CPUs, caches, etc.). */ -class SimObject : public Serializable, protected StartupCallback +class SimObject + : public EventManager, public Serializable, protected StartupCallback { public: enum State { @@ -86,10 +89,6 @@ class SimObject : public Serializable, protected StartupCallback SimObject(const Params *_params); virtual ~SimObject() {} - protected: - // static: support for old-style constructors (call manually) - static Params *makeParams(const std::string &name); - public: virtual const std::string name() const { return params()->name; } diff --git a/src/sim/sim_object_params.hh b/src/sim/sim_object_params.hh new file mode 100644 index 000000000..750181135 --- /dev/null +++ b/src/sim/sim_object_params.hh @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2001-2005 The Regents of The University of Michigan + * All rights reserved. + * + * 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. + * + * Authors: Steve Reinhardt + * Nathan Binkert + */ + +#ifndef __SIM_SIM_OBJECT_PARAMS_HH__ +#define __SIM_SIM_OBJECT_PARAMS_HH__ + +#ifndef PY_VERSION +struct PyObject; +#endif + +#include <string> + +struct EventQueue; + +struct SimObjectParams +{ + SimObjectParams() + { + extern EventQueue mainEventQueue; + eventq = &mainEventQueue; + } + virtual ~SimObjectParams() {} + + std::string name; + PyObject *pyobj; + EventQueue *eventq; +}; + + +#endif // __SIM_SIM_OBJECT_PARAMS_HH__ diff --git a/src/sim/simulate.cc b/src/sim/simulate.cc index 36bdff45e..1ac2c80df 100644 --- a/src/sim/simulate.cc +++ b/src/sim/simulate.cc @@ -47,7 +47,7 @@ SimLoopExitEvent * simulate(Tick num_cycles) { - warn("Entering event queue @ %d. Starting simulation...\n", curTick); + inform("Entering event queue @ %d. Starting simulation...\n", curTick); if (num_cycles < 0) fatal("simulate: num_cycles must be >= 0 (was %d)\n", num_cycles); @@ -56,8 +56,9 @@ simulate(Tick num_cycles) else num_cycles = curTick + num_cycles; - Event *limit_event; - limit_event = schedExitSimLoop("simulate() limit reached", num_cycles); + Event *limit_event = + new SimLoopExitEvent("simulate() limit reached", 0); + mainEventQueue.schedule(limit_event, num_cycles); while (1) { // there should always be at least one event (the SimLoopExitEvent @@ -82,8 +83,8 @@ simulate(Tick num_cycles) // if we didn't hit limit_event, delete it if (se_event != limit_event) { assert(limit_event->scheduled()); - limit_event->deschedule(); - delete limit_event; + limit_event->squash(); + hack_once("be nice to actually delete the event here"); } return se_event; diff --git a/src/sim/stat_control.cc b/src/sim/stat_control.cc index 228c83898..2dcf4798d 100644 --- a/src/sim/stat_control.cc +++ b/src/sim/stat_control.cc @@ -44,14 +44,6 @@ using namespace std; -Stats::Formula hostInstRate; -Stats::Formula hostTickRate; -Stats::Value hostMemory; -Stats::Value hostSeconds; - -Stats::Value simTicks; -Stats::Value simInsts; -Stats::Value simFreq; Stats::Formula simSeconds; namespace Stats { @@ -84,8 +76,21 @@ statElapsedTicks() SimTicksReset simTicksReset; -void -initSimStats() +struct Global +{ + Stats::Formula hostInstRate; + Stats::Formula hostTickRate; + Stats::Value hostMemory; + Stats::Value hostSeconds; + + Stats::Value simTicks; + Stats::Value simInsts; + Stats::Value simFreq; + + Global(); +}; + +Global::Global() { simInsts .functor(BaseCPU::numSimulatedInstructions) @@ -146,6 +151,12 @@ initSimStats() registerResetCallback(&simTicksReset); } +void +initSimStats() +{ + static Global global; +} + class _StatEvent : public Event { private: @@ -154,12 +165,10 @@ class _StatEvent : public Event Tick repeat; public: - _StatEvent(bool _dump, bool _reset, Tick _when, Tick _repeat) - : Event(&mainEventQueue, Stat_Event_Pri), dump(_dump), reset(_reset), - repeat(_repeat) + _StatEvent(bool _dump, bool _reset, Tick _repeat) + : Event(Stat_Event_Pri), dump(_dump), reset(_reset), repeat(_repeat) { setFlags(AutoDelete); - schedule(_when); } virtual void @@ -171,15 +180,18 @@ class _StatEvent : public Event if (reset) Stats::reset(); - if (repeat) - new _StatEvent(dump, reset, curTick + repeat, repeat); + if (repeat) { + Event *event = new _StatEvent(dump, reset, repeat); + mainEventQueue.schedule(event, curTick + repeat); + } } }; void StatEvent(bool dump, bool reset, Tick when, Tick repeat) { - new _StatEvent(dump, reset, when, repeat); + Event *event = new _StatEvent(dump, reset, repeat); + mainEventQueue.schedule(event, when); } /* namespace Stats */ } diff --git a/src/sim/stats.hh b/src/sim/stats.hh index 97251283d..481c36cf6 100644 --- a/src/sim/stats.hh +++ b/src/sim/stats.hh @@ -34,6 +34,5 @@ #include "base/statistics.hh" extern Stats::Formula simSeconds; -extern Stats::Value simTicks; #endif // __SIM_SIM_STATS_HH__ diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc index f4b9b7ae3..5fe30c269 100644 --- a/src/sim/syscall_emul.cc +++ b/src/sim/syscall_emul.cc @@ -53,8 +53,8 @@ SyscallDesc::doSyscall(int callnum, LiveProcess *process, ThreadContext *tc) { DPRINTFR(SyscallVerbose, "%d: %s: syscall %s called w/arguments %d,%d,%d,%d\n", curTick,tc->getCpuPtr()->name(), name, - tc->getSyscallArg(0),tc->getSyscallArg(1), - tc->getSyscallArg(2),tc->getSyscallArg(3)); + process->getSyscallArg(tc, 0), process->getSyscallArg(tc, 1), + process->getSyscallArg(tc, 2), process->getSyscallArg(tc, 3)); SyscallReturn retval = (*funcPtr)(this, callnum, process, tc); @@ -62,7 +62,7 @@ SyscallDesc::doSyscall(int callnum, LiveProcess *process, ThreadContext *tc) curTick,tc->getCpuPtr()->name(), name, retval.value()); if (!(flags & SyscallDesc::SuppressReturnValue)) - tc->setSyscallReturn(retval); + process->setSyscallReturn(tc, retval); } @@ -81,7 +81,7 @@ ignoreFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { warn("ignoring syscall %s(%d, %d, ...)", desc->name, - tc->getSyscallArg(0), tc->getSyscallArg(1)); + process->getSyscallArg(tc, 0), process->getSyscallArg(tc, 1)); return 0; } @@ -92,7 +92,8 @@ exitFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { if (tc->exit()) { - exitSimLoop("target called exit()", tc->getSyscallArg(0) & 0xff); + exitSimLoop("target called exit()", + process->getSyscallArg(tc, 0) & 0xff); } return 1; @@ -107,21 +108,27 @@ getpagesizeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn -obreakFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) +brkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - Addr junk; - // change brk addr to first arg - Addr new_brk = tc->getSyscallArg(0); - if (new_brk != 0) { + Addr new_brk = p->getSyscallArg(tc, 0); + + // in Linux at least, brk(0) returns the current break value + // (note that the syscall and the glibc function have different behavior) + if (new_brk == 0) + return p->brk_point; + + if (new_brk > p->brk_point) { + // might need to allocate some new pages for (ChunkGenerator gen(p->brk_point, new_brk - p->brk_point, VMPageSize); !gen.done(); gen.next()) { - if (!p->pTable->translate(gen.addr(), junk)) + if (!p->pTable->translate(gen.addr())) p->pTable->allocate(roundDown(gen.addr(), VMPageSize), VMPageSize); } - p->brk_point = new_brk; } + + p->brk_point = new_brk; DPRINTF(SyscallVerbose, "Break Point changed to: %#X\n", p->brk_point); return p->brk_point; } @@ -130,7 +137,7 @@ obreakFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn closeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int target_fd = tc->getSyscallArg(0); + int target_fd = p->getSyscallArg(tc, 0); int status = close(p->sim_fd(target_fd)); if (status >= 0) p->free_fd(target_fd); @@ -141,9 +148,9 @@ closeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn readFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int fd = p->sim_fd(tc->getSyscallArg(0)); - int nbytes = tc->getSyscallArg(2); - BufferArg bufArg(tc->getSyscallArg(1), nbytes); + int fd = p->sim_fd(p->getSyscallArg(tc, 0)); + int nbytes = p->getSyscallArg(tc, 2); + BufferArg bufArg(p->getSyscallArg(tc, 1), nbytes); int bytes_read = read(fd, bufArg.bufferPtr(), nbytes); @@ -156,9 +163,9 @@ readFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn writeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int fd = p->sim_fd(tc->getSyscallArg(0)); - int nbytes = tc->getSyscallArg(2); - BufferArg bufArg(tc->getSyscallArg(1), nbytes); + int fd = p->sim_fd(p->getSyscallArg(tc, 0)); + int nbytes = p->getSyscallArg(tc, 2); + BufferArg bufArg(p->getSyscallArg(tc, 1), nbytes); bufArg.copyIn(tc->getMemPort()); @@ -173,9 +180,9 @@ writeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn lseekFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int fd = p->sim_fd(tc->getSyscallArg(0)); - uint64_t offs = tc->getSyscallArg(1); - int whence = tc->getSyscallArg(2); + int fd = p->sim_fd(p->getSyscallArg(tc, 0)); + uint64_t offs = p->getSyscallArg(tc, 1); + int whence = p->getSyscallArg(tc, 2); off_t result = lseek(fd, offs, whence); @@ -186,11 +193,11 @@ lseekFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn _llseekFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int fd = p->sim_fd(tc->getSyscallArg(0)); - uint64_t offset_high = tc->getSyscallArg(1); - uint32_t offset_low = tc->getSyscallArg(2); - Addr result_ptr = tc->getSyscallArg(3); - int whence = tc->getSyscallArg(4); + int fd = p->sim_fd(p->getSyscallArg(tc, 0)); + uint64_t offset_high = p->getSyscallArg(tc, 1); + uint32_t offset_low = p->getSyscallArg(tc, 2); + Addr result_ptr = p->getSyscallArg(tc, 3); + int whence = p->getSyscallArg(tc, 4); uint64_t offset = (offset_high << 32) | offset_low; @@ -229,8 +236,8 @@ const char *hostname = "m5.eecs.umich.edu"; SyscallReturn gethostnameFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - int name_len = tc->getSyscallArg(1); - BufferArg name(tc->getSyscallArg(0), name_len); + int name_len = p->getSyscallArg(tc, 1); + BufferArg name(p->getSyscallArg(tc, 0), name_len); strncpy((char *)name.bufferPtr(), hostname, name_len); @@ -240,11 +247,64 @@ gethostnameFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) } SyscallReturn +getcwdFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) +{ + int result = 0; + unsigned long size = p->getSyscallArg(tc, 1); + BufferArg buf(p->getSyscallArg(tc, 0), size); + + // Is current working directory defined? + string cwd = p->getcwd(); + if (!cwd.empty()) { + if (cwd.length() >= size) { + // Buffer too small + return -ERANGE; + } + strncpy((char *)buf.bufferPtr(), cwd.c_str(), size); + result = cwd.length(); + } + else { + if (getcwd((char *)buf.bufferPtr(), size) != NULL) { + result = strlen((char *)buf.bufferPtr()); + } + else { + result = -1; + } + } + + buf.copyOut(tc->getMemPort()); + + return (result == -1) ? -errno : result; +} + + +SyscallReturn +readlinkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) +{ + string path; + + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) + return (TheISA::IntReg)-EFAULT; + + // Adjust path for current working directory + path = p->fullPath(path); + + size_t bufsiz = p->getSyscallArg(tc, 2); + BufferArg buf(p->getSyscallArg(tc, 1), bufsiz); + + int result = readlink(path.c_str(), (char *)buf.bufferPtr(), bufsiz); + + buf.copyOut(tc->getMemPort()); + + return (result == -1) ? -errno : result; +} + +SyscallReturn unlinkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) return (TheISA::IntReg)-EFAULT; // Adjust path for current working directory @@ -254,17 +314,35 @@ unlinkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) return (result == -1) ? -errno : result; } + +SyscallReturn +mkdirFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) +{ + string path; + + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) + return (TheISA::IntReg)-EFAULT; + + // Adjust path for current working directory + path = p->fullPath(path); + + mode_t mode = p->getSyscallArg(tc, 1); + + int result = mkdir(path.c_str(), mode); + return (result == -1) ? -errno : result; +} + SyscallReturn renameFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string old_name; - if (!tc->getMemPort()->tryReadString(old_name, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(old_name, p->getSyscallArg(tc, 0))) return -EFAULT; string new_name; - if (!tc->getMemPort()->tryReadString(new_name, tc->getSyscallArg(1))) + if (!tc->getMemPort()->tryReadString(new_name, p->getSyscallArg(tc, 1))) return -EFAULT; // Adjust path for current working directory @@ -280,10 +358,10 @@ truncateFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) return -EFAULT; - off_t length = tc->getSyscallArg(1); + off_t length = p->getSyscallArg(tc, 1); // Adjust path for current working directory path = p->fullPath(path); @@ -295,29 +373,40 @@ truncateFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn ftruncateFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(tc->getSyscallArg(0)); + int fd = process->sim_fd(process->getSyscallArg(tc, 0)); if (fd < 0) return -EBADF; - off_t length = tc->getSyscallArg(1); + off_t length = process->getSyscallArg(tc, 1); int result = ftruncate(fd, length); return (result == -1) ? -errno : result; } SyscallReturn +umaskFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) +{ + // Letting the simulated program change the simulator's umask seems like + // a bad idea. Compromise by just returning the current umask but not + // changing anything. + mode_t oldMask = umask(0); + umask(oldMask); + return (int)oldMask; +} + +SyscallReturn chownFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, p->getSyscallArg(tc, 0))) return -EFAULT; /* XXX endianess */ - uint32_t owner = tc->getSyscallArg(1); + uint32_t owner = p->getSyscallArg(tc, 1); uid_t hostOwner = owner; - uint32_t group = tc->getSyscallArg(2); + uint32_t group = p->getSyscallArg(tc, 2); gid_t hostGroup = group; // Adjust path for current working directory @@ -330,15 +419,15 @@ chownFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) SyscallReturn fchownFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(tc->getSyscallArg(0)); + int fd = process->sim_fd(process->getSyscallArg(tc, 0)); if (fd < 0) return -EBADF; /* XXX endianess */ - uint32_t owner = tc->getSyscallArg(1); + uint32_t owner = process->getSyscallArg(tc, 1); uid_t hostOwner = owner; - uint32_t group = tc->getSyscallArg(2); + uint32_t group = process->getSyscallArg(tc, 2); gid_t hostGroup = group; int result = fchown(fd, hostOwner, hostGroup); @@ -349,11 +438,11 @@ fchownFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) SyscallReturn dupFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(tc->getSyscallArg(0)); + int fd = process->sim_fd(process->getSyscallArg(tc, 0)); if (fd < 0) return -EBADF; - Process::FdMap *fdo = process->sim_fd_obj(tc->getSyscallArg(0)); + Process::FdMap *fdo = process->sim_fd_obj(process->getSyscallArg(tc, 0)); int result = dup(fd); return (result == -1) ? -errno : process->alloc_fd(result, fdo->filename, fdo->flags, fdo->mode, false); @@ -364,12 +453,12 @@ SyscallReturn fcntlFunc(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = tc->getSyscallArg(0); + int fd = process->getSyscallArg(tc, 0); if (fd < 0 || process->sim_fd(fd) < 0) return -EBADF; - int cmd = tc->getSyscallArg(1); + int cmd = process->getSyscallArg(tc, 1); switch (cmd) { case 0: // F_DUPFD // if we really wanted to support this, we'd need to do it @@ -406,12 +495,12 @@ SyscallReturn fcntl64Func(SyscallDesc *desc, int num, LiveProcess *process, ThreadContext *tc) { - int fd = tc->getSyscallArg(0); + int fd = process->getSyscallArg(tc, 0); if (fd < 0 || process->sim_fd(fd) < 0) return -EBADF; - int cmd = tc->getSyscallArg(1); + int cmd = process->getSyscallArg(tc, 1); switch (cmd) { case 33: //F_GETLK64 warn("fcntl64(%d, F_GETLK64) not supported, error returned\n", fd); @@ -476,7 +565,7 @@ getuidPseudoFunc(SyscallDesc *desc, int callnum, LiveProcess *process, // EUID goes in r20. tc->setIntReg(SyscallPseudoReturnReg, process->euid()); //EUID - return process->uid(); // UID + return process->uid(); // UID } @@ -495,7 +584,7 @@ setuidFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { // can't fathom why a benchmark would call this. - warn("Ignoring call to setuid(%d)\n", tc->getSyscallArg(0)); + warn("Ignoring call to setuid(%d)\n", process->getSyscallArg(tc, 0)); return 0; } @@ -522,14 +611,14 @@ SyscallReturn getuidFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - return process->uid(); // UID + return process->uid(); // UID } SyscallReturn geteuidFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - return process->euid(); // UID + return process->euid(); // UID } SyscallReturn diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh index e35b0a75b..0b0e73692 100644 --- a/src/sim/syscall_emul.hh +++ b/src/sim/syscall_emul.hh @@ -44,15 +44,15 @@ #include <errno.h> #include <string> #ifdef __CYGWIN32__ -#include <sys/fcntl.h> // for O_BINARY +#include <sys/fcntl.h> // for O_BINARY #endif #include <sys/stat.h> #include <fcntl.h> #include <sys/uio.h> -#include "sim/host.hh" // for Addr +#include "sim/host.hh" // for Addr #include "base/chunk_generator.hh" -#include "base/intmath.hh" // for RoundUp +#include "base/intmath.hh" // for RoundUp #include "base/misc.hh" #include "base/trace.hh" #include "cpu/base.hh" @@ -72,9 +72,9 @@ class SyscallDesc { typedef SyscallReturn (*FuncPtr)(SyscallDesc *, int num, LiveProcess *, ThreadContext *); - const char *name; //!< Syscall name (e.g., "open"). - FuncPtr funcPtr; //!< Pointer to emulation function. - int flags; //!< Flags (see Flags enum). + const char *name; //!< Syscall name (e.g., "open"). + FuncPtr funcPtr; //!< Pointer to emulation function. + int flags; //!< Flags (see Flags enum). /// Flag values for controlling syscall behavior. enum Flags { @@ -117,7 +117,7 @@ class BaseBufferArg { virtual bool copyIn(TranslatingPort *memport) { memport->readBlob(addr, bufPtr, size); - return true; // no EFAULT detection for now + return true; // no EFAULT detection for now } // @@ -126,7 +126,7 @@ class BaseBufferArg { virtual bool copyOut(TranslatingPort *memport) { memport->writeBlob(addr, bufPtr, size); - return true; // no EFAULT detection for now + return true; // no EFAULT detection for now } protected: @@ -140,7 +140,7 @@ class BufferArg : public BaseBufferArg { public: BufferArg(Addr _addr, int _size) : BaseBufferArg(_addr, _size) { } - void *bufferPtr() { return bufPtr; } + void *bufferPtr() { return bufPtr; } }; template <class T> @@ -158,8 +158,8 @@ class TypedBufferArg : public BaseBufferArg operator T*() { return (T *)bufPtr; } // dereference operators - T &operator*() { return *((T *)bufPtr); } - T* operator->() { return (T *)bufPtr; } + T &operator*() { return *((T *)bufPtr); } + T* operator->() { return (T *)bufPtr; } T &operator[](int i) { return ((T *)bufPtr)[i]; } }; @@ -191,9 +191,9 @@ SyscallReturn exitFunc(SyscallDesc *desc, int num, SyscallReturn getpagesizeFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); -/// Target obreak() handler: set brk address. -SyscallReturn obreakFunc(SyscallDesc *desc, int num, - LiveProcess *p, ThreadContext *tc); +/// Target brk() handler: set brk address. +SyscallReturn brkFunc(SyscallDesc *desc, int num, + LiveProcess *p, ThreadContext *tc); /// Target close() handler. SyscallReturn closeFunc(SyscallDesc *desc, int num, @@ -223,10 +223,22 @@ SyscallReturn munmapFunc(SyscallDesc *desc, int num, SyscallReturn gethostnameFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); +/// Target getcwd() handler. +SyscallReturn getcwdFunc(SyscallDesc *desc, int num, + LiveProcess *p, ThreadContext *tc); + +/// Target unlink() handler. +SyscallReturn readlinkFunc(SyscallDesc *desc, int num, + LiveProcess *p, ThreadContext *tc); + /// Target unlink() handler. SyscallReturn unlinkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); +/// Target mkdir() handler. +SyscallReturn mkdirFunc(SyscallDesc *desc, int num, + LiveProcess *p, ThreadContext *tc); + /// Target rename() handler. SyscallReturn renameFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); @@ -242,6 +254,11 @@ SyscallReturn ftruncateFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); +/// Target umask() handler. +SyscallReturn umaskFunc(SyscallDesc *desc, int num, + LiveProcess *p, ThreadContext *tc); + + /// Target chown() handler. SyscallReturn chownFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); @@ -363,6 +380,11 @@ convertStatBuf(target_stat &tgt, host_stat *host, bool fakeTTY = false) tgt->st_ino = host->st_ino; tgt->st_ino = htog(tgt->st_ino); tgt->st_mode = host->st_mode; + if (fakeTTY) { + // Claim to be a character device + tgt->st_mode &= ~S_IFMT; // Clear S_IFMT + tgt->st_mode |= S_IFCHR; // Set S_IFCHR + } tgt->st_mode = htog(tgt->st_mode); tgt->st_nlink = host->st_nlink; tgt->st_nlink = htog(tgt->st_nlink); @@ -445,8 +467,8 @@ SyscallReturn ioctlFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = tc->getSyscallArg(0); - unsigned req = tc->getSyscallArg(1); + int fd = process->getSyscallArg(tc, 0); + unsigned req = process->getSyscallArg(tc, 1); DPRINTF(SyscallVerbose, "ioctl(%d, 0x%x, ...)\n", fd, req); @@ -480,7 +502,7 @@ openFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) return -EFAULT; if (path == "/dev/sysdev0") { @@ -490,8 +512,8 @@ openFunc(SyscallDesc *desc, int callnum, LiveProcess *process, return -ENOENT; } - int tgtFlags = tc->getSyscallArg(1); - int mode = tc->getSyscallArg(2); + int tgtFlags = process->getSyscallArg(tc, 1); + int mode = process->getSyscallArg(tc, 2); int hostFlags = 0; // translate open flags @@ -515,10 +537,18 @@ openFunc(SyscallDesc *desc, int callnum, LiveProcess *process, DPRINTF(SyscallVerbose, "opening file %s\n", path.c_str()); - // open the file - int fd = open(path.c_str(), hostFlags, mode); + int fd; + if (!path.compare(0, 6, "/proc/") || !path.compare(0, 8, "/system/") || + !path.compare(0, 10, "/platform/") || !path.compare(0, 5, "/sys/")) { + // It's a proc/sys entery and requires special handling + fd = OS::openSpecialFile(path, process, tc); + return (fd == -1) ? -1 : process->alloc_fd(fd,path.c_str(),hostFlags,mode, false); + } else { + // open the file + fd = open(path.c_str(), hostFlags, mode); + return (fd == -1) ? -errno : process->alloc_fd(fd,path.c_str(),hostFlags,mode, false); + } - return (fd == -1) ? -errno : process->alloc_fd(fd,path.c_str(),hostFlags,mode, false); } @@ -530,10 +560,10 @@ chmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) return -EFAULT; - uint32_t mode = tc->getSyscallArg(1); + uint32_t mode = process->getSyscallArg(tc, 1); mode_t hostMode = 0; // XXX translate mode flags via OS::something??? @@ -557,13 +587,13 @@ SyscallReturn fchmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = tc->getSyscallArg(0); + int fd = process->getSyscallArg(tc, 0); if (fd < 0 || process->sim_fd(fd) < 0) { // doesn't map to any simulator fd: not a valid target fd return -EBADF; } - uint32_t mode = tc->getSyscallArg(1); + uint32_t mode = process->getSyscallArg(tc, 1); mode_t hostMode = 0; // XXX translate mode flags via OS::someting??? @@ -577,6 +607,51 @@ fchmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process, return 0; } +/// Target mremap() handler. +template <class OS> +SyscallReturn +mremapFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) +{ + Addr start = process->getSyscallArg(tc, 0); + uint64_t old_length = process->getSyscallArg(tc, 1); + uint64_t new_length = process->getSyscallArg(tc, 2); + uint64_t flags = process->getSyscallArg(tc, 3); + + if ((start % TheISA::VMPageSize != 0) || + (new_length % TheISA::VMPageSize != 0)) { + warn("mremap failing: arguments not page aligned"); + return -EINVAL; + } + + if (new_length > old_length) { + if ((start + old_length) == process->mmap_end) { + uint64_t diff = new_length - old_length; + process->pTable->allocate(process->mmap_end, diff); + process->mmap_end += diff; + return start; + } else { + // sys/mman.h defined MREMAP_MAYMOVE + if (!(flags & 1)) { + warn("can't remap here and MREMAP_MAYMOVE flag not set\n"); + return -ENOMEM; + } else { + process->pTable->remap(start, old_length, process->mmap_end); + warn("mremapping to totally new vaddr %08p-%08p, adding %d\n", + process->mmap_end, process->mmap_end + new_length, new_length); + start = process->mmap_end; + // add on the remaining unallocated pages + process->pTable->allocate(start + old_length, new_length - old_length); + process->mmap_end += new_length; + warn("returning %08p as start\n", start); + return start; + } + } + } else { + process->pTable->deallocate(start + new_length, old_length - + new_length); + return start; + } +} /// Target stat() handler. template <class OS> @@ -586,7 +661,7 @@ statFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) return -EFAULT; // Adjust path for current working directory @@ -598,7 +673,8 @@ statFunc(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStatBuf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf); + copyOutStatBuf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), + &hostBuf); return 0; } @@ -612,7 +688,7 @@ stat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) return -EFAULT; // Adjust path for current working directory @@ -629,7 +705,8 @@ stat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStat64Buf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf); + copyOutStat64Buf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), + &hostBuf); return 0; } @@ -641,7 +718,7 @@ SyscallReturn fstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = tc->getSyscallArg(0); + int fd = process->getSyscallArg(tc, 0); if (fd < 0 || process->sim_fd(fd) < 0) { // doesn't map to any simulator fd: not a valid target fd return -EBADF; @@ -658,7 +735,7 @@ fstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStat64Buf<OS>(tc->getMemPort(), tc->getSyscallArg(1), + copyOutStat64Buf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), &hostBuf, (fd == 1)); return 0; @@ -673,7 +750,7 @@ lstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) return -EFAULT; // Adjust path for current working directory @@ -685,7 +762,8 @@ lstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStatBuf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf); + copyOutStatBuf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), + &hostBuf); return 0; } @@ -698,7 +776,7 @@ lstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) return -EFAULT; // Adjust path for current working directory @@ -715,7 +793,8 @@ lstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStat64Buf<OS>(tc->getMemPort(), tc->getSyscallArg(1), &hostBuf); + copyOutStat64Buf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), + &hostBuf); return 0; } @@ -726,7 +805,7 @@ SyscallReturn fstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(tc->getSyscallArg(0)); + int fd = process->sim_fd(process->getSyscallArg(tc, 0)); DPRINTF(SyscallVerbose, "fstat(%d, ...)\n", fd); @@ -739,7 +818,7 @@ fstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - copyOutStatBuf<OS>(tc->getMemPort(), tc->getSyscallArg(1), + copyOutStatBuf<OS>(tc->getMemPort(), process->getSyscallArg(tc, 1), &hostBuf, (fd == 1)); return 0; @@ -754,7 +833,7 @@ statfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) return -EFAULT; // Adjust path for current working directory @@ -767,7 +846,7 @@ statfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, return -errno; OS::copyOutStatfsBuf(tc->getMemPort(), - (Addr)(tc->getSyscallArg(1)), &hostBuf); + (Addr)(process->getSyscallArg(tc, 1)), &hostBuf); return 0; } @@ -779,7 +858,7 @@ SyscallReturn fstatfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = process->sim_fd(tc->getSyscallArg(0)); + int fd = process->sim_fd(process->getSyscallArg(tc, 0)); if (fd < 0) return -EBADF; @@ -790,7 +869,7 @@ fstatfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process, if (result < 0) return -errno; - OS::copyOutStatfsBuf(tc->getMemPort(), tc->getSyscallArg(1), + OS::copyOutStatfsBuf(tc->getMemPort(), process->getSyscallArg(tc, 1), &hostBuf); return 0; @@ -803,15 +882,15 @@ SyscallReturn writevFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int fd = tc->getSyscallArg(0); + int fd = process->getSyscallArg(tc, 0); if (fd < 0 || process->sim_fd(fd) < 0) { // doesn't map to any simulator fd: not a valid target fd return -EBADF; } TranslatingPort *p = tc->getMemPort(); - uint64_t tiov_base = tc->getSyscallArg(1); - size_t count = tc->getSyscallArg(2); + uint64_t tiov_base = process->getSyscallArg(tc, 1); + size_t count = process->getSyscallArg(tc, 2); struct iovec hiov[count]; for (int i = 0; i < count; ++i) { @@ -855,12 +934,13 @@ template <class OS> SyscallReturn mmapFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) { - Addr start = tc->getSyscallArg(0); - uint64_t length = tc->getSyscallArg(1); - // int prot = tc->getSyscallArg(2); - int flags = tc->getSyscallArg(3); - // int fd = p->sim_fd(tc->getSyscallArg(4)); - // int offset = tc->getSyscallArg(5); + Addr start = p->getSyscallArg(tc, 0); + uint64_t length = p->getSyscallArg(tc, 1); + // int prot = p->getSyscallArg(tc, 2); + int flags = p->getSyscallArg(tc, 3); + // int fd = p->sim_fd(p->getSyscallArg(tc, 4)); + // int offset = p->getSyscallArg(tc, 5); + if ((start % TheISA::VMPageSize) != 0 || (length % TheISA::VMPageSize) != 0) { @@ -882,7 +962,7 @@ mmapFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc) if (!(flags & OS::TGT_MAP_ANONYMOUS)) { warn("allowing mmap of file @ fd %d. " - "This will break if not /dev/zero.", tc->getSyscallArg(4)); + "This will break if not /dev/zero.", p->getSyscallArg(tc, 4)); } return start; @@ -894,17 +974,24 @@ SyscallReturn getrlimitFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - unsigned resource = tc->getSyscallArg(0); - TypedBufferArg<typename OS::rlimit> rlp(tc->getSyscallArg(1)); + unsigned resource = process->getSyscallArg(tc, 0); + TypedBufferArg<typename OS::rlimit> rlp(process->getSyscallArg(tc, 1)); switch (resource) { case OS::TGT_RLIMIT_STACK: - // max stack size in bytes: make up a number (2MB for now) + // max stack size in bytes: make up a number (8MB for now) rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024; rlp->rlim_cur = htog(rlp->rlim_cur); rlp->rlim_max = htog(rlp->rlim_max); break; + case OS::TGT_RLIMIT_DATA: + // max data segment size in bytes: make up a number + rlp->rlim_cur = rlp->rlim_max = 256 * 1024 * 1024; + rlp->rlim_cur = htog(rlp->rlim_cur); + rlp->rlim_max = htog(rlp->rlim_max); + break; + default: std::cerr << "getrlimitFunc: unimplemented resource " << resource << std::endl; @@ -922,7 +1009,7 @@ SyscallReturn gettimeofdayFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - TypedBufferArg<typename OS::timeval> tp(tc->getSyscallArg(0)); + TypedBufferArg<typename OS::timeval> tp(process->getSyscallArg(tc, 0)); getElapsedTime(tp->tv_sec, tp->tv_usec); tp->tv_sec += seconds_since_epoch; @@ -943,10 +1030,10 @@ utimesFunc(SyscallDesc *desc, int callnum, LiveProcess *process, { std::string path; - if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0))) + if (!tc->getMemPort()->tryReadString(path, process->getSyscallArg(tc, 0))) return -EFAULT; - TypedBufferArg<typename OS::timeval [2]> tp(tc->getSyscallArg(1)); + TypedBufferArg<typename OS::timeval [2]> tp(process->getSyscallArg(tc, 1)); tp.copyIn(tc->getMemPort()); struct timeval hostTimeval[2]; @@ -972,8 +1059,8 @@ SyscallReturn getrusageFunc(SyscallDesc *desc, int callnum, LiveProcess *process, ThreadContext *tc) { - int who = tc->getSyscallArg(0); // THREAD, SELF, or CHILDREN - TypedBufferArg<typename OS::rusage> rup(tc->getSyscallArg(1)); + int who = process->getSyscallArg(tc, 0); // THREAD, SELF, or CHILDREN + TypedBufferArg<typename OS::rusage> rup(process->getSyscallArg(tc, 1)); rup->ru_utime.tv_sec = 0; rup->ru_utime.tv_usec = 0; diff --git a/src/sim/system.cc b/src/sim/system.cc index 10b9b1217..d16524c41 100644 --- a/src/sim/system.cc +++ b/src/sim/system.cc @@ -42,6 +42,7 @@ #include "mem/physical.hh" #include "sim/byteswap.hh" #include "sim/system.hh" +#include "sim/debug.hh" #if FULL_SYSTEM #include "arch/vtophys.hh" #include "kern/kernel_stats.hh" @@ -57,7 +58,7 @@ vector<System *> System::systemList; int System::numSystemsRunning = 0; System::System(Params *p) - : SimObject(p), physmem(p->physmem), numcpus(0), + : SimObject(p), physmem(p->physmem), _numContexts(0), #if FULL_SYSTEM init_param(p->init_param), functionalPort(p->name + "-fport"), @@ -94,12 +95,12 @@ System::System(Params *p) * Load the kernel code into memory */ if (params()->kernel == "") { - warn("No kernel set for full system simulation. Assuming you know what" + inform("No kernel set for full system simulation. Assuming you know what" " you're doing...\n"); } else { // Load kernel code kernel = createObjectFile(params()->kernel); - warn("kernel located at: %s", params()->kernel); + inform("kernel located at: %s", params()->kernel); if (kernel == NULL) fatal("Could not load kernel file %s", params()->kernel); @@ -114,16 +115,16 @@ System::System(Params *p) // load symbols if (!kernel->loadGlobalSymbols(kernelSymtab)) - panic("could not load kernel symbols\n"); + fatal("could not load kernel symbols\n"); if (!kernel->loadLocalSymbols(kernelSymtab)) - panic("could not load kernel local symbols\n"); + fatal("could not load kernel local symbols\n"); if (!kernel->loadGlobalSymbols(debugSymbolTable)) - panic("could not load kernel symbols\n"); + fatal("could not load kernel symbols\n"); if (!kernel->loadLocalSymbols(debugSymbolTable)) - panic("could not load kernel local symbols\n"); + fatal("could not load kernel local symbols\n"); DPRINTF(Loader, "Kernel start = %#x\n", kernelStart); DPRINTF(Loader, "Kernel end = %#x\n", kernelEnd); @@ -165,27 +166,33 @@ bool System::breakpoint() } int -System::registerThreadContext(ThreadContext *tc, int id) +System::registerThreadContext(ThreadContext *tc, int assigned) { - if (id == -1) { + int id; + if (assigned == -1) { for (id = 0; id < threadContexts.size(); id++) { if (!threadContexts[id]) break; } - } - if (threadContexts.size() <= id) - threadContexts.resize(id + 1); + if (threadContexts.size() <= id) + threadContexts.resize(id + 1); + } else { + if (threadContexts.size() <= assigned) + threadContexts.resize(assigned + 1); + id = assigned; + } if (threadContexts[id]) - panic("Cannot have two CPUs with the same id (%d)\n", id); + fatal("Cannot have two CPUs with the same id (%d)\n", id); threadContexts[id] = tc; - numcpus++; + _numContexts++; - if (rgdb_enable) { + int port = getRemoteGDBPort(); + if (rgdb_enable && port) { RemoteGDB *rgdb = new RemoteGDB(this, tc); - GDBListener *gdbl = new GDBListener(rgdb, 7000 + id); + GDBListener *gdbl = new GDBListener(rgdb, port + id); gdbl->listen(); /** * Uncommenting this line waits for a remote debugger to @@ -207,22 +214,24 @@ System::registerThreadContext(ThreadContext *tc, int id) void System::startup() { +#if FULL_SYSTEM int i; for (i = 0; i < threadContexts.size(); i++) TheISA::startupCPU(threadContexts[i], i); +#endif } void -System::replaceThreadContext(ThreadContext *tc, int id) +System::replaceThreadContext(ThreadContext *tc, int context_id) { - if (id >= threadContexts.size()) { + if (context_id >= threadContexts.size()) { panic("replaceThreadContext: bad id, %d >= %d\n", - id, threadContexts.size()); + context_id, threadContexts.size()); } - threadContexts[id] = tc; - if (id < remoteGDB.size()) - remoteGDB[id]->replaceThreadContext(tc); + threadContexts[context_id] = tc; + if (context_id < remoteGDB.size()) + remoteGDB[context_id]->replaceThreadContext(tc); } #if !FULL_SYSTEM @@ -235,6 +244,19 @@ System::new_page() fatal("Out of memory, please increase size of physical memory."); return return_addr; } + +Addr +System::memSize() +{ + return physmem->size(); +} + +Addr +System::freeMemSize() +{ + return physmem->size() - (page_ptr << LogVMPageSize); +} + #endif void @@ -283,11 +305,7 @@ const char *System::MemoryModeStrings[3] = {"invalid", "atomic", System * SystemParams::create() { - System::Params *p = new System::Params; - p->name = name; - p->physmem = physmem; - p->mem_mode = mem_mode; - return new System(p); + return new System(this); } #endif diff --git a/src/sim/system.hh b/src/sim/system.hh index cdd5bebb0..bfa5ea8bb 100644 --- a/src/sim/system.hh +++ b/src/sim/system.hh @@ -87,14 +87,19 @@ class System : public SimObject PCEventQueue pcEventQueue; std::vector<ThreadContext *> threadContexts; - int numcpus; + int _numContexts; - int getNumCPUs() + ThreadContext * getThreadContext(int tid) { - if (numcpus != threadContexts.size()) + return threadContexts[tid]; + } + + int numContexts() + { + if (_numContexts != threadContexts.size()) panic("cpu array not fully populated!"); - return numcpus; + return _numContexts; } #if FULL_SYSTEM @@ -134,6 +139,12 @@ class System : public SimObject return next_PID++; } + /** Amount of physical memory that is still free */ + Addr freeMemSize(); + + /** Amount of physical memory that exists */ + Addr memSize(); + #endif // FULL_SYSTEM @@ -219,8 +230,8 @@ class System : public SimObject #endif // FULL_SYSTEM - int registerThreadContext(ThreadContext *tc, int tcIndex); - void replaceThreadContext(ThreadContext *tc, int tcIndex); + int registerThreadContext(ThreadContext *tc, int assigned=-1); + void replaceThreadContext(ThreadContext *tc, int context_id); void serialize(std::ostream &os); void unserialize(Checkpoint *cp, const std::string §ion); diff --git a/src/sim/tlb.cc b/src/sim/tlb.cc index 7292a69e0..e82e4f277 100644 --- a/src/sim/tlb.cc +++ b/src/sim/tlb.cc @@ -34,7 +34,7 @@ #include "sim/tlb.hh" Fault -GenericTLB::translate(RequestPtr req, ThreadContext * tc, bool) +GenericTLB::translateAtomic(RequestPtr req, ThreadContext * tc, bool) { #if FULL_SYSTEM panic("Generic translation shouldn't be used in full system mode.\n"); @@ -50,6 +50,14 @@ GenericTLB::translate(RequestPtr req, ThreadContext * tc, bool) } void +GenericTLB::translateTiming(RequestPtr req, ThreadContext *tc, + Translation *translation, bool write) +{ + assert(translation); + translation->finish(translateAtomic(req, tc, write), req, tc, write); +} + +void GenericTLB::demapPage(Addr vaddr, uint64_t asn) { warn("Demapping pages in the generic TLB is unnecessary.\n"); diff --git a/src/sim/tlb.hh b/src/sim/tlb.hh index 011cc1144..8893f8c97 100644 --- a/src/sim/tlb.hh +++ b/src/sim/tlb.hh @@ -47,6 +47,21 @@ class BaseTLB : public SimObject public: virtual void demapPage(Addr vaddr, uint64_t asn) = 0; + + class Translation + { + public: + virtual ~Translation() + {} + + /* + * The memory for this object may be dynamically allocated, and it may + * be responsible for cleaning itself up which will happen in this + * function. Once it's called, the object is no longer valid. + */ + virtual void finish(Fault fault, RequestPtr req, + ThreadContext *tc, bool write=false) = 0; + }; }; class GenericTLB : public BaseTLB @@ -58,7 +73,9 @@ class GenericTLB : public BaseTLB public: void demapPage(Addr vaddr, uint64_t asn); - Fault translate(RequestPtr req, ThreadContext *tc, bool=false); + Fault translateAtomic(RequestPtr req, ThreadContext *tc, bool=false); + void translateTiming(RequestPtr req, ThreadContext *tc, + Translation *translation, bool=false); }; #endif // __ARCH_SPARC_TLB_HH__ diff --git a/src/sim/vptr.hh b/src/sim/vptr.hh index 383f65351..09aa2d213 100644 --- a/src/sim/vptr.hh +++ b/src/sim/vptr.hh @@ -71,9 +71,8 @@ class VPtr if (!ptr) return; - VirtualPort *port = tc->getVirtPort(tc); + VirtualPort *port = tc->getVirtPort(); port->readBlob(ptr, buffer, sizeof(T)); - tc->delVirtPort(port); } bool |