From fae60c164e284864cfabea515db6ba28d601b71d Mon Sep 17 00:00:00 2001 From: Ali Saidi Date: Wed, 1 Aug 2007 16:59:14 -0400 Subject: Arguments: Get rid of duplicate code for the Arguments class in each architecture. Move the argument files to src/sim and add a utility.cc file with a function getArguments() that returns the given argument in the architecture specific fashion. getArguments() was getArg() is the architecture specific Argument class and has had all magic numbers replaced with meaningful constants. Also add a function to the Argument class for testing if an argument is NULL. --HG-- rename : src/arch/alpha/arguments.cc => src/sim/arguments.cc rename : src/arch/alpha/arguments.hh => src/sim/arguments.hh extra : convert_revision : 8b93667bafaa03b52aadb64d669adfe835266b8e --- src/arch/alpha/SConscript | 2 +- src/arch/alpha/arguments.cc | 70 ------------------- src/arch/alpha/arguments.hh | 150 ----------------------------------------- src/arch/alpha/linux/system.cc | 2 +- src/arch/alpha/utility.cc | 65 ++++++++++++++++++ src/arch/alpha/utility.hh | 2 + src/arch/mips/utility.hh | 4 ++ src/arch/sparc/SConscript | 2 +- src/arch/sparc/arguments.cc | 73 -------------------- src/arch/sparc/arguments.hh | 149 ---------------------------------------- src/arch/sparc/utility.cc | 64 ++++++++++++++++++ src/arch/sparc/utility.hh | 3 + 12 files changed, 141 insertions(+), 445 deletions(-) delete mode 100644 src/arch/alpha/arguments.cc delete mode 100644 src/arch/alpha/arguments.hh create mode 100644 src/arch/alpha/utility.cc delete mode 100644 src/arch/sparc/arguments.cc delete mode 100644 src/arch/sparc/arguments.hh create mode 100644 src/arch/sparc/utility.cc (limited to 'src/arch') diff --git a/src/arch/alpha/SConscript b/src/arch/alpha/SConscript index 2d59180c4..4f293e22f 100644 --- a/src/arch/alpha/SConscript +++ b/src/arch/alpha/SConscript @@ -38,12 +38,12 @@ if env['TARGET_ISA'] == 'alpha': Source('miscregfile.cc') Source('regfile.cc') Source('remote_gdb.cc') + Source('utility.cc') if env['FULL_SYSTEM']: SimObject('AlphaSystem.py') SimObject('AlphaTLB.py') - Source('arguments.cc') Source('ev5.cc') Source('idle_event.cc') Source('ipr.cc') diff --git a/src/arch/alpha/arguments.cc b/src/arch/alpha/arguments.cc deleted file mode 100644 index e89bd70b0..000000000 --- a/src/arch/alpha/arguments.cc +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Copyright (c) 2003-2005 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: Nathan Binkert - */ - -#include "arch/alpha/arguments.hh" -#include "arch/alpha/vtophys.hh" -#include "cpu/thread_context.hh" -#include "mem/vport.hh" - -using namespace AlphaISA; - -Arguments::Data::~Data() -{ - while (!data.empty()) { - delete [] data.front(); - data.pop_front(); - } -} - -char * -Arguments::Data::alloc(size_t size) -{ - char *buf = new char[size]; - data.push_back(buf); - return buf; -} - -uint64_t -Arguments::getArg(bool fp) -{ - if (number < 6) { - if (fp) - return tc->readFloatRegBits(16 + number); - else - return tc->readIntReg(16 + number); - } else { - Addr sp = tc->readIntReg(30); - VirtualPort *vp = tc->getVirtPort(tc); - uint64_t arg = vp->read(sp + (number-6) * sizeof(uint64_t)); - tc->delVirtPort(vp); - return arg; - } -} - diff --git a/src/arch/alpha/arguments.hh b/src/arch/alpha/arguments.hh deleted file mode 100644 index 4dba4901f..000000000 --- a/src/arch/alpha/arguments.hh +++ /dev/null @@ -1,150 +0,0 @@ -/* - * Copyright (c) 2003-2005 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: Nathan Binkert - */ - -#ifndef __ARCH_ALPHA_ARGUMENTS_HH__ -#define __ARCH_ALPHA_ARGUMENTS_HH__ - -#include - -#include "arch/alpha/vtophys.hh" -#include "base/refcnt.hh" -#include "mem/vport.hh" -#include "sim/host.hh" - -class ThreadContext; - -namespace AlphaISA { - -class Arguments -{ - protected: - ThreadContext *tc; - int number; - uint64_t getArg(bool fp = false); - - protected: - class Data : public RefCounted - { - public: - Data(){} - ~Data(); - - private: - std::list data; - - public: - char *alloc(size_t size); - }; - - RefCountingPtr data; - - public: - Arguments(ThreadContext *ctx, int n = 0) - : tc(ctx), number(n), data(NULL) - { assert(number >= 0); data = new Data;} - Arguments(const Arguments &args) - : tc(args.tc), number(args.number), data(args.data) {} - ~Arguments() {} - - ThreadContext *getThreadContext() const { return tc; } - - const Arguments &operator=(const Arguments &args) { - tc = args.tc; - number = args.number; - data = args.data; - return *this; - } - - Arguments &operator++() { - ++number; - assert(number >= 0); - return *this; - } - - Arguments operator++(int) { - Arguments args = *this; - ++number; - assert(number >= 0); - return args; - } - - Arguments &operator--() { - --number; - assert(number >= 0); - return *this; - } - - Arguments operator--(int) { - Arguments args = *this; - --number; - assert(number >= 0); - return args; - } - - const Arguments &operator+=(int index) { - number += index; - assert(number >= 0); - return *this; - } - - const Arguments &operator-=(int index) { - number -= index; - assert(number >= 0); - return *this; - } - - Arguments operator[](int index) { - return Arguments(tc, index); - } - - template - operator T() { - assert(sizeof(T) <= sizeof(uint64_t)); - T data = static_cast(getArg()); - return data; - } - - template - operator T *() { - T *buf = (T *)data->alloc(sizeof(T)); - CopyData(tc, buf, getArg(), sizeof(T)); - return buf; - } - - operator char *() { - char *buf = data->alloc(2048); - CopyStringOut(tc, buf, getArg(), 2048); - return buf; - } -}; - -}; // namespace AlphaISA - -#endif // __ARCH_ALPHA_ARGUMENTS_HH__ diff --git a/src/arch/alpha/linux/system.cc b/src/arch/alpha/linux/system.cc index f93cdfbad..102598716 100644 --- a/src/arch/alpha/linux/system.cc +++ b/src/arch/alpha/linux/system.cc @@ -40,7 +40,6 @@ * up boot time. */ -#include "arch/arguments.hh" #include "arch/vtophys.hh" #include "arch/alpha/idle_event.hh" #include "arch/alpha/linux/system.hh" @@ -54,6 +53,7 @@ #include "kern/linux/events.hh" #include "mem/physical.hh" #include "mem/port.hh" +#include "sim/arguments.hh" #include "sim/byteswap.hh" using namespace std; diff --git a/src/arch/alpha/utility.cc b/src/arch/alpha/utility.cc new file mode 100644 index 000000000..f1864203b --- /dev/null +++ b/src/arch/alpha/utility.cc @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2003-2005 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: Nathan Binkert + * Ali Saidi + */ + +#include "arch/alpha/utility.hh" + +#if FULL_SYSTEM +#include "arch/alpha/vtophys.hh" +#include "mem/vport.hh" +#endif + +namespace AlphaISA +{ + +uint64_t getArgument(ThreadContext *tc, int number, bool fp) +{ +#if FULL_SYSTEM + if (number < NumArgumentRegs) { + if (fp) + return tc->readFloatRegBits(ArgumentReg[number]); + else + return tc->readIntReg(ArgumentReg[number]); + } else { + Addr sp = tc->readIntReg(StackPointerReg); + VirtualPort *vp = tc->getVirtPort(tc); + uint64_t arg = vp->read(sp + + (number-NumArgumentRegs) * sizeof(uint64_t)); + tc->delVirtPort(vp); + return arg; + } +#else + panic("getArgument() is Full system only\n"); + M5_DUMMY_RETURN +#endif +} + +} // namespace AlphaISA + diff --git a/src/arch/alpha/utility.hh b/src/arch/alpha/utility.hh index c20394a92..5d461a0f9 100644 --- a/src/arch/alpha/utility.hh +++ b/src/arch/alpha/utility.hh @@ -42,6 +42,8 @@ namespace AlphaISA { + uint64_t getArgument(ThreadContext *tc, int number, bool fp); + static inline bool inUserMode(ThreadContext *tc) { diff --git a/src/arch/mips/utility.hh b/src/arch/mips/utility.hh index e3fd9daa8..6195c4ceb 100644 --- a/src/arch/mips/utility.hh +++ b/src/arch/mips/utility.hh @@ -48,6 +48,10 @@ class ThreadContext; namespace MipsISA { + uint64_t getArgument(ThreadContext *tc, bool fp) { + panic("getArgument() not implemented for MIPS\n"); + } + //Floating Point Utility Functions uint64_t fpConvert(ConvertType cvt_type, double fp_val); double roundFP(double val, int digits); diff --git a/src/arch/sparc/SConscript b/src/arch/sparc/SConscript index c9dbb8cf2..0552c282b 100644 --- a/src/arch/sparc/SConscript +++ b/src/arch/sparc/SConscript @@ -39,12 +39,12 @@ if env['TARGET_ISA'] == 'sparc': Source('miscregfile.cc') Source('regfile.cc') Source('remote_gdb.cc') + Source('utility.cc') if env['FULL_SYSTEM']: SimObject('SparcSystem.py') SimObject('SparcTLB.py') - Source('arguments.cc') Source('pagetable.cc') Source('stacktrace.cc') Source('system.cc') diff --git a/src/arch/sparc/arguments.cc b/src/arch/sparc/arguments.cc deleted file mode 100644 index 44adf4a15..000000000 --- a/src/arch/sparc/arguments.cc +++ /dev/null @@ -1,73 +0,0 @@ -/* - * Copyright (c) 2003-2005 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: Nathan Binkert - */ - -#include "arch/sparc/arguments.hh" -#include "arch/sparc/vtophys.hh" -#include "cpu/thread_context.hh" -#include "mem/vport.hh" - -using namespace SparcISA; - -Arguments::Data::~Data() -{ - while (!data.empty()) { - delete [] data.front(); - data.pop_front(); - } -} - -char * -Arguments::Data::alloc(size_t size) -{ - char *buf = new char[size]; - data.push_back(buf); - return buf; -} - -uint64_t -Arguments::getArg(bool fp) -{ - //The caller uses %o0-%05 for the first 6 arguments even if their floating - //point. Double precision floating point values take two registers/args. - //Quads, structs, and unions are passed as pointers. All arguments beyond - //the sixth are passed on the stack past the 16 word window save area, - //space for the struct/union return pointer, and space reserved for the - //first 6 arguments which the caller may use but doesn't have to. - if (number < 6) { - return tc->readIntReg(8 + number); - } else { - Addr sp = tc->readIntReg(14); - VirtualPort *vp = tc->getVirtPort(tc); - uint64_t arg = vp->read(sp + 92 + (number-6) * sizeof(uint64_t)); - tc->delVirtPort(vp); - return arg; - } -} - diff --git a/src/arch/sparc/arguments.hh b/src/arch/sparc/arguments.hh deleted file mode 100644 index 5596f7408..000000000 --- a/src/arch/sparc/arguments.hh +++ /dev/null @@ -1,149 +0,0 @@ -/* - * Copyright (c) 2003-2005 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: Nathan Binkert - */ - -#ifndef __ARCH_SPARC_ARGUMENTS_HH__ -#define __ARCH_SPARC_ARGUMENTS_HH__ - -#include - -#include "base/refcnt.hh" -#include "sim/host.hh" -#include "mem/vport.hh" - -class ThreadContext; - -namespace SparcISA { - -class Arguments -{ - protected: - ThreadContext *tc; - int number; - uint64_t getArg(bool fp = false); - - protected: - class Data : public RefCounted - { - public: - Data(){} - ~Data(); - - private: - std::list data; - - public: - char *alloc(size_t size); - }; - - RefCountingPtr data; - - public: - Arguments(ThreadContext *ctx, int n = 0) - : tc(ctx), number(n), data(NULL) - { assert(number >= 0); data = new Data;} - Arguments(const Arguments &args) - : tc(args.tc), number(args.number), data(args.data) {} - ~Arguments() {} - - ThreadContext *getThreadContext() const { return tc; } - - const Arguments &operator=(const Arguments &args) { - tc = args.tc; - number = args.number; - data = args.data; - return *this; - } - - Arguments &operator++() { - ++number; - assert(number >= 0); - return *this; - } - - Arguments operator++(int) { - Arguments args = *this; - ++number; - assert(number >= 0); - return args; - } - - Arguments &operator--() { - --number; - assert(number >= 0); - return *this; - } - - Arguments operator--(int) { - Arguments args = *this; - --number; - assert(number >= 0); - return args; - } - - const Arguments &operator+=(int index) { - number += index; - assert(number >= 0); - return *this; - } - - const Arguments &operator-=(int index) { - number -= index; - assert(number >= 0); - return *this; - } - - Arguments operator[](int index) { - return Arguments(tc, index); - } - - template - operator T() { - assert(sizeof(T) <= sizeof(uint64_t)); - T data = static_cast(getArg()); - return data; - } - - template - operator T *() { - T *buf = (T *)data->alloc(sizeof(T)); - CopyData(tc, buf, getArg(), sizeof(T)); - return buf; - } - - operator char *() { - char *buf = data->alloc(2048); - CopyStringOut(tc, buf, getArg(), 2048); - return buf; - } -}; - -}; // namespace SparcISA - -#endif // __ARCH_SPARC_ARGUMENTS_HH__ diff --git a/src/arch/sparc/utility.cc b/src/arch/sparc/utility.cc new file mode 100644 index 000000000..6d4358603 --- /dev/null +++ b/src/arch/sparc/utility.cc @@ -0,0 +1,64 @@ +/* + * Copyright (c) 2003-2005 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: Gabe Black + * Ali Saidi + */ + +#include "arch/sparc/utility.hh" +#if FULL_SYSTEM +#include "arch/sparc/vtophys.hh" +#include "mem/vport.hh" +#endif + +namespace SparcISA { + + +//The caller uses %o0-%05 for the first 6 arguments even if their floating +//point. Double precision floating point values take two registers/args. +//Quads, structs, and unions are passed as pointers. All arguments beyond +//the sixth are passed on the stack past the 16 word window save area, +//space for the struct/union return pointer, and space reserved for the +//first 6 arguments which the caller may use but doesn't have to. +uint64_t getArgument(ThreadContext *tc, int number, bool fp) { +#if FULL_SYSTEM + if (number < NumArgumentRegs) { + return tc->readIntReg(ArgumentReg[number]); + } else { + Addr sp = tc->readIntReg(StackPointerReg); + VirtualPort *vp = tc->getVirtPort(tc); + uint64_t arg = vp->read(sp + 92 + + (number-NumArgumentRegs) * sizeof(uint64_t)); + tc->delVirtPort(vp); + return arg; + } +#else + panic("getArgument() only implemented for FULL_SYSTEM\n"); + M5_DUMMY_RETURN +#endif +} +} //namespace SPARC_ISA diff --git a/src/arch/sparc/utility.hh b/src/arch/sparc/utility.hh index 1458231f2..9a84a82b3 100644 --- a/src/arch/sparc/utility.hh +++ b/src/arch/sparc/utility.hh @@ -41,6 +41,9 @@ namespace SparcISA { + + uint64_t getArgument(ThreadContext *tc, int number, bool fp); + static inline bool inUserMode(ThreadContext *tc) { -- cgit v1.2.3