utility.cc revision 5498
14826Ssaidi@eecs.umich.edu/* 24826Ssaidi@eecs.umich.edu * Copyright (c) 2003-2005 The Regents of The University of Michigan 34826Ssaidi@eecs.umich.edu * All rights reserved. 44826Ssaidi@eecs.umich.edu * 54826Ssaidi@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 64826Ssaidi@eecs.umich.edu * modification, are permitted provided that the following conditions are 74826Ssaidi@eecs.umich.edu * met: redistributions of source code must retain the above copyright 84826Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 94826Ssaidi@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 104826Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 114826Ssaidi@eecs.umich.edu * documentation and/or other materials provided with the distribution; 124826Ssaidi@eecs.umich.edu * neither the name of the copyright holders nor the names of its 134826Ssaidi@eecs.umich.edu * contributors may be used to endorse or promote products derived from 144826Ssaidi@eecs.umich.edu * this software without specific prior written permission. 154826Ssaidi@eecs.umich.edu * 164826Ssaidi@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 174826Ssaidi@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 184826Ssaidi@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 194826Ssaidi@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 204826Ssaidi@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 214826Ssaidi@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 224826Ssaidi@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 234826Ssaidi@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 244826Ssaidi@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 254826Ssaidi@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 264826Ssaidi@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 274826Ssaidi@eecs.umich.edu * 284826Ssaidi@eecs.umich.edu * Authors: Gabe Black 294826Ssaidi@eecs.umich.edu * Ali Saidi 304826Ssaidi@eecs.umich.edu */ 314826Ssaidi@eecs.umich.edu 324826Ssaidi@eecs.umich.edu#include "arch/sparc/utility.hh" 334826Ssaidi@eecs.umich.edu#if FULL_SYSTEM 344826Ssaidi@eecs.umich.edu#include "arch/sparc/vtophys.hh" 354826Ssaidi@eecs.umich.edu#include "mem/vport.hh" 364826Ssaidi@eecs.umich.edu#endif 374826Ssaidi@eecs.umich.edu 384826Ssaidi@eecs.umich.edunamespace SparcISA { 394826Ssaidi@eecs.umich.edu 404826Ssaidi@eecs.umich.edu 414826Ssaidi@eecs.umich.edu//The caller uses %o0-%05 for the first 6 arguments even if their floating 424826Ssaidi@eecs.umich.edu//point. Double precision floating point values take two registers/args. 434826Ssaidi@eecs.umich.edu//Quads, structs, and unions are passed as pointers. All arguments beyond 444826Ssaidi@eecs.umich.edu//the sixth are passed on the stack past the 16 word window save area, 454826Ssaidi@eecs.umich.edu//space for the struct/union return pointer, and space reserved for the 464826Ssaidi@eecs.umich.edu//first 6 arguments which the caller may use but doesn't have to. 474826Ssaidi@eecs.umich.eduuint64_t getArgument(ThreadContext *tc, int number, bool fp) { 484826Ssaidi@eecs.umich.edu#if FULL_SYSTEM 494826Ssaidi@eecs.umich.edu if (number < NumArgumentRegs) { 504826Ssaidi@eecs.umich.edu return tc->readIntReg(ArgumentReg[number]); 514826Ssaidi@eecs.umich.edu } else { 524826Ssaidi@eecs.umich.edu Addr sp = tc->readIntReg(StackPointerReg); 535498Ssaidi@eecs.umich.edu VirtualPort *vp = tc->getVirtPort(); 544826Ssaidi@eecs.umich.edu uint64_t arg = vp->read<uint64_t>(sp + 92 + 554826Ssaidi@eecs.umich.edu (number-NumArgumentRegs) * sizeof(uint64_t)); 564826Ssaidi@eecs.umich.edu tc->delVirtPort(vp); 574826Ssaidi@eecs.umich.edu return arg; 584826Ssaidi@eecs.umich.edu } 594826Ssaidi@eecs.umich.edu#else 604826Ssaidi@eecs.umich.edu panic("getArgument() only implemented for FULL_SYSTEM\n"); 614826Ssaidi@eecs.umich.edu M5_DUMMY_RETURN 624826Ssaidi@eecs.umich.edu#endif 634826Ssaidi@eecs.umich.edu} 644826Ssaidi@eecs.umich.edu} //namespace SPARC_ISA 65