| /* |
| * Copyright (c) 2003-2004 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: Gabe Black |
| * Ali Saidi |
| */ |
| |
| #ifndef __SPARC_PROCESS_HH__ |
| #define __SPARC_PROCESS_HH__ |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "arch/sparc/isa_traits.hh" |
| #include "base/loader/object_file.hh" |
| #include "mem/page_table.hh" |
| #include "sim/byteswap.hh" |
| #include "sim/process.hh" |
| |
| class SparcProcess : public Process |
| { |
| protected: |
| |
| const Addr StackBias; |
| |
| // The locations of the fill and spill handlers |
| Addr fillStart, spillStart; |
| |
| SparcProcess(ProcessParams * params, ObjectFile *objFile, |
| Addr _StackBias); |
| |
| void initState() override; |
| |
| template<class IntType> |
| void argsInit(int pageSize); |
| |
| public: |
| |
| // Handles traps which request services from the operating system |
| virtual void handleTrap(int trapNum, ThreadContext *tc, Fault *fault); |
| |
| Addr readFillStart() { return fillStart; } |
| Addr readSpillStart() { return spillStart; } |
| |
| virtual void flushWindows(ThreadContext *tc) = 0; |
| void setSyscallReturn(ThreadContext *tc, |
| SyscallReturn return_value) override; |
| }; |
| |
| class Sparc32Process : public SparcProcess |
| { |
| protected: |
| |
| Sparc32Process(ProcessParams * params, ObjectFile *objFile) |
| : SparcProcess(params, objFile, 0) |
| { |
| Addr brk_point = image.maxAddr(); |
| brk_point = roundUp(brk_point, SparcISA::PageBytes); |
| |
| // Reserve 8M for main stack. |
| Addr max_stack_size = 8 * 1024 * 1024; |
| |
| // Set up stack. On SPARC Linux, stack goes from the top of memory |
| // downward, less the hole for the kernel address space. |
| Addr stack_base = 0xf0000000ULL; |
| |
| // Set pointer for next thread stack. |
| Addr next_thread_stack_base = stack_base - max_stack_size; |
| |
| // Set up region for mmaps. |
| Addr mmap_end = 0x70000000; |
| |
| memState = std::make_shared<MemState>(brk_point, stack_base, |
| max_stack_size, |
| next_thread_stack_base, |
| mmap_end); |
| } |
| |
| void initState() override; |
| |
| public: |
| |
| void argsInit(int intSize, int pageSize); |
| |
| void flushWindows(ThreadContext *tc) override; |
| |
| RegVal getSyscallArg(ThreadContext *tc, int &i) override; |
| /// Explicitly import the otherwise hidden getSyscallArg |
| using Process::getSyscallArg; |
| }; |
| |
| class Sparc64Process : public SparcProcess |
| { |
| protected: |
| |
| Sparc64Process(ProcessParams * params, ObjectFile *objFile) |
| : SparcProcess(params, objFile, 2047) |
| { |
| Addr brk_point = image.maxAddr(); |
| brk_point = roundUp(brk_point, SparcISA::PageBytes); |
| |
| Addr max_stack_size = 8 * 1024 * 1024; |
| |
| // Set up stack. On SPARC Linux, stack goes from the top of memory |
| // downward, less the hole for the kernel address space. |
| Addr stack_base = 0x80000000000ULL; |
| |
| // Set pointer for next thread stack. Reserve 8M for main stack. |
| Addr next_thread_stack_base = stack_base - max_stack_size; |
| |
| // Set up region for mmaps. |
| Addr mmap_end = 0xfffff80000000000ULL; |
| |
| memState = std::make_shared<MemState>(brk_point, stack_base, |
| max_stack_size, |
| next_thread_stack_base, |
| mmap_end); |
| } |
| |
| void initState() override; |
| |
| public: |
| |
| void argsInit(int intSize, int pageSize); |
| |
| void flushWindows(ThreadContext *tc) override; |
| |
| RegVal getSyscallArg(ThreadContext *tc, int &i) override; |
| /// Explicitly import the otherwise hidden getSyscallArg |
| using Process::getSyscallArg; |
| }; |
| |
| #endif // __SPARC_PROCESS_HH__ |