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Diffstat (limited to 'src/arch/alpha/linux/threadinfo.hh')
-rw-r--r-- | src/arch/alpha/linux/threadinfo.hh | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/arch/alpha/linux/threadinfo.hh b/src/arch/alpha/linux/threadinfo.hh new file mode 100644 index 000000000..caeb69f15 --- /dev/null +++ b/src/arch/alpha/linux/threadinfo.hh @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2004 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: Ali Saidi + * Nathan Binkert + */ + +#ifndef __ARCH_ALPHA_LINUX_LINUX_TREADNIFO_HH__ +#define __ARCH_ALPHA_LINUX_LINUX_TREADNIFO_HH__ + +#include "arch/alpha/linux/thread_info.hh" +#include "cpu/thread_context.hh" +#include "kern/linux/sched.hh" +#include "sim/vptr.hh" + +namespace Linux { + +class ThreadInfo +{ + private: + ThreadContext *tc; + + public: + ThreadInfo(ThreadContext *_tc) : tc(_tc) {} + ~ThreadInfo() {} + + inline VPtr<thread_info> + curThreadInfo() + { + Addr current; + + /* Each kernel stack is only 2 pages, the start of which is the + * thread_info struct. So we can get the address by masking off + * the lower 14 bits. + */ + current = tc->readIntReg(TheISA::StackPointerReg) & ~0x3fff; + return VPtr<thread_info>(tc, current); + } + + inline VPtr<task_struct> + curTaskInfo() + { + Addr task = curThreadInfo()->task; + return VPtr<task_struct>(tc, task); + } + + std::string + curTaskName() + { + return curTaskInfo()->name; + } + + int32_t + curTaskPID() + { + return curTaskInfo()->pid; + } + + uint64_t + curTaskStart() + { + return curTaskInfo()->start; + } +}; + +/* namespace Linux */ } + +#endif // __ARCH_ALPHA_LINUX_LINUX_THREADINFO_HH__ |