diff options
Diffstat (limited to 'util/statetrace/arch/sparc/tracechild.hh')
-rw-r--r-- | util/statetrace/arch/sparc/tracechild.hh | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/util/statetrace/arch/sparc/tracechild.hh b/util/statetrace/arch/sparc/tracechild.hh new file mode 100644 index 000000000..27670604a --- /dev/null +++ b/util/statetrace/arch/sparc/tracechild.hh @@ -0,0 +1,114 @@ +/* + * Copyright (c) 2006-2007 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 + */ + +#ifndef TRACECHILD_SPARC_HH +#define TRACECHILD_SPARC_HH + +#include <asm-sparc64/reg.h> +#include <cassert> +#include <ostream> +#include <stdint.h> +#include <string> +#include <sys/ptrace.h> +#include <sys/types.h> + +#include "base/tracechild.hh" + +struct regs; + +class SparcTraceChild : public TraceChild +{ + public: + enum RegNum + { + //Global registers + G0, G1, G2, G3, G4, G5, G6, G7, + //Output registers + O0, O1, O2, O3, O4, O5, O6, O7, + //Local registers + L0, L1, L2, L3, L4, L5, L6, L7, + //Input registers + I0, I1, I2, I3, I4, I5, I6, I7, + //Floating point + F0, F2, F4, F6, F8, F10, F12, F14, + F16, F18, F20, F22, F24, F26, F28, F30, + F32, F34, F36, F38, F40, F42, F44, F46, + F48, F50, F52, F54, F56, F58, F60, F62, + //Miscelaneous + FSR, FPRS, PC, NPC, Y, CWP, PSTATE, ASI, CCR, + numregs + }; + private: + regs theregs; + regs oldregs; + fpu thefpregs; + fpu oldfpregs; + uint64_t locals[8]; + uint64_t oldLocals[8]; + uint64_t inputs[8]; + uint64_t oldInputs[8]; + bool regDiffSinceUpdate[numregs]; + + //This calculates where the pc might go after the current instruction. + //while this equals npc for most instructions, it doesn't for all of + //them. The return value is the number of actual potential targets. + int getTargets(uint32_t inst, uint64_t pc, uint64_t npc, + uint64_t &target1, uint64_t &target2); + + protected: + bool update(int pid); + + public: + SparcTraceChild(); + + bool sendState(int socket); + + int64_t getRegVal(int num); + + int64_t getOldRegVal(int num); + + bool step(); + + uint64_t + getPC() + { + return getRegVal(PC); + } + + uint64_t + getSP() + { + return getRegVal(O6); + } + + std::ostream & outputStartState(std::ostream & os); +}; + +#endif |