8ea5176b7f
We should always refer to the specific ISA in that arch directory. This is especially necessary if we're ever going to make it to the point where we actually have heterogeneous systems.
154 lines
4.2 KiB
C++
154 lines
4.2 KiB
C++
/*
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* Copyright (c) 2004 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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* Nathan Binkert
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*/
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#ifndef __ARCH_MIPS_LINUX_LINUX_TREADNIFO_HH__
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#define __ARCH_MIPS_LINUX_LINUX_TREADNIFO_HH__
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#include "cpu/thread_context.hh"
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#include "sim/system.hh"
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#include "sim/vptr.hh"
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namespace Linux {
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class ThreadInfo
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{
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private:
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ThreadContext *tc;
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System *sys;
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Addr pcbb;
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template <typename T>
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bool
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get_data(const char *symbol, T &data)
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{
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Addr addr = 0;
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if (!sys->kernelSymtab->findAddress(symbol, addr))
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return false;
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CopyOut(tc, &data, addr, sizeof(T));
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data = MipsISA::gtoh(data);
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return true;
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}
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public:
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ThreadInfo(ThreadContext *_tc, Addr _pcbb = 0)
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: tc(_tc), sys(tc->getSystemPtr()), pcbb(_pcbb)
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{
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}
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~ThreadInfo()
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{}
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inline Addr
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curThreadInfo()
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{
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panic("curThreadInfo not implemented for MIPS");
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Addr addr = pcbb;
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Addr sp;
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if (!addr)
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addr = tc->readMiscRegNoEffect(0/*MipsISA::IPR_PALtemp23*/);
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FunctionalPort *p = tc->getPhysPort();
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p->readBlob(addr, (uint8_t *)&sp, sizeof(Addr));
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return sp & ~ULL(0x3fff);
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}
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inline Addr
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curTaskInfo(Addr thread_info = 0)
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{
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int32_t offset;
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if (!get_data("thread_info_task", offset))
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return 0;
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if (!thread_info)
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thread_info = curThreadInfo();
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Addr addr;
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CopyOut(tc, &addr, thread_info + offset, sizeof(addr));
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return addr;
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}
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int32_t
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curTaskPID(Addr thread_info = 0)
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{
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Addr offset;
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if (!get_data("task_struct_pid", offset))
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return -1;
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int32_t pid;
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CopyOut(tc, &pid, curTaskInfo(thread_info) + offset, sizeof(pid));
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return pid;
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}
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int64_t
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curTaskStart(Addr thread_info = 0)
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{
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Addr offset;
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if (!get_data("task_struct_start_time", offset))
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return -1;
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int64_t data;
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// start_time is actually of type timespec, but if we just
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// grab the first long, we'll get the seconds out of it
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CopyOut(tc, &data, curTaskInfo(thread_info) + offset, sizeof(data));
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return data;
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}
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std::string
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curTaskName(Addr thread_info = 0)
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{
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int32_t offset;
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int32_t size;
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if (!get_data("task_struct_comm", offset))
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return "FailureIn_curTaskName";
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if (!get_data("task_struct_comm_size", size))
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return "FailureIn_curTaskName";
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char buffer[size + 1];
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CopyStringOut(tc, buffer, curTaskInfo(thread_info) + offset, size);
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return buffer;
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}
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};
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/* namespace Linux */ }
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#endif // __ARCH_MIPS_LINUX_LINUX_THREADINFO_HH__
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