ARM: Add ARM support to statetrace.
This commit is contained in:
parent
6835dbce34
commit
081b6fe9db
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@ -26,12 +26,31 @@
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#
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#
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# Authors: Gabe Black
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# Authors: Gabe Black
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.PHONY: statetrace
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CXX := g++
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INCLUDES := -I ./ -I ./arch
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CXXFLAGS := -O3 -ggdb
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statetrace: statetrace-native
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define build-obj
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$(CXX) -c $(patsubst %.o,%.cc,$@) -o $@ $(INCLUDES) $(CXXFLAGS)
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endef
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statetrace-native: statetrace.cc tracechild.cc tracechild_arch.cc printer.cc printer.hh refcnt.hh regstate.hh tracechild.hh
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define final-link
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g++ statetrace.cc tracechild.cc tracechild_arch.cc printer.cc -I ./ -I ./arch/ -O3 --static -o statetrace
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$(CXX) $(INCLUDES) $(CXXFLAGS) -o $@ $^
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endef
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statetrace-sparc: statetrace.cc tracechild.cc tracechild_arch.cc printer.cc printer.hh refcnt.hh regstate.hh tracechild.hh
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all: statetrace
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sparc64-unknown-linux-gnu-g++ statetrace.cc tracechild.cc tracechild_arch.cc printer.cc -g -I ./ -I ./arch/ -O3 --static -o statetrace
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printer.o: printer.cc printer.hh tracechild.hh refcnt.hh regstate.hh
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$(build-obj)
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statetrace.o: statetrace.cc printer.hh tracechild.hh refcnt.hh regstate.hh
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$(build-obj)
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tracechild.o: tracechild.cc tracechild.hh regstate.hh
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$(build-obj)
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tracechild_arch.o: statetrace.cc printer.hh tracechild.hh refcnt.hh regstate.hh arch/tracechild_arm.hh arch/tracechild_arm.cc arch/tracechild_i386.hh arch/tracechild_i386.cc arch/tracechild_amd64.cc arch/tracechild_amd64.hh arch/tracechild_sparc.cc arch/tracechild_sparc.hh
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$(build-obj)
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statetrace: printer.o statetrace.o tracechild.o tracechild_arch.o
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$(final-link)
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clean:
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rm -f *.o statetrace
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215
util/statetrace/arch/tracechild_arm.cc
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215
util/statetrace/arch/tracechild_arm.cc
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@ -0,0 +1,215 @@
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/*
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* Copyright (c) 2006-2009 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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* Gabe Black
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*/
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#include <iostream>
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#include <errno.h>
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#include <stdint.h>
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#include <cstring>
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#include "tracechild_arm.hh"
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using namespace std;
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const char* ARMTraceChild::regNames[numregs] = {
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"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
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"r8", "r9", "r10", "fp", "r12", "sp", "lr", "pc",
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"cpsr" };
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ARMTraceChild::ARMTraceChild()
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{
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for (int x = 0; x < numregs; x++)
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regDiffSinceUpdate[x] = false;
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}
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bool ARMTraceChild::sendState(int socket)
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{
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uint32_t regVal = 0;
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for(int x = 0; x < numregs; x++)
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{
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regVal = getRegVal(x);
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if(write(socket, ®Val, sizeof(regVal)) == -1)
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{
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cerr << "Write failed! " << strerror(errno) << endl;
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tracing = false;
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return false;
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}
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}
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return true;
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}
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uint32_t ARMTraceChild::getRegs(user_regs &myregs, int num)
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{
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assert(num < numregs && num >= 0);
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return myregs.uregs[num];
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}
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bool ARMTraceChild::update(int pid)
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{
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oldregs = regs;
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if(ptrace(PTRACE_GETREGS, pid, 0, ®s) != 0)
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{
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cerr << "update: " << strerror(errno) << endl;
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return false;
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}
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for(unsigned int x = 0; x < numregs; x++)
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regDiffSinceUpdate[x] = (getRegVal(x) != getOldRegVal(x));
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return true;
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}
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int64_t ARMTraceChild::getRegVal(int num)
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{
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return getRegs(regs, num);
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}
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int64_t ARMTraceChild::getOldRegVal(int num)
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{
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return getRegs(oldregs, num);
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}
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char * ARMTraceChild::printReg(int num)
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{
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sprintf(printBuffer, "0x%08X", (uint32_t)getRegVal(num));
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return printBuffer;
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}
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ostream & ARMTraceChild::outputStartState(ostream & os)
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{
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uint32_t sp = getSP();
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uint32_t pc = getPC();
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uint32_t highestInfo = 0;
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char obuf[1024];
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sprintf(obuf, "Initial stack pointer = 0x%08x\n", sp);
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os << obuf;
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sprintf(obuf, "Initial program counter = 0x%08x\n", pc);
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os << obuf;
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//Output the argument count
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int32_t cargc = ptrace(PTRACE_PEEKDATA, pid, sp, 0);
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sprintf(obuf, "0x%08x: Argc = 0x%08x\n", sp, cargc);
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os << obuf;
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sp += 4;
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//Output argv pointers
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int argCount = 0;
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int32_t cargv;
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do
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{
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cargv = ptrace(PTRACE_PEEKDATA, pid, sp, 0);
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sprintf(obuf, "0x%08x: argv[%d] = 0x%08x\n",
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sp, argCount++, cargv);
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if(cargv)
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if(highestInfo < cargv)
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highestInfo = cargv;
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os << obuf;
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sp += 4;
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} while(cargv);
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//Output the envp pointers
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int envCount = 0;
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uint32_t cenvp;
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do
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{
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cenvp = ptrace(PTRACE_PEEKDATA, pid, sp, 0);
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sprintf(obuf, "0x%08x: envp[%d] = 0x%08x\n",
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sp, envCount++, cenvp);
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os << obuf;
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sp += 4;
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} while(cenvp);
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uint32_t auxType, auxVal;
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do
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{
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auxType = ptrace(PTRACE_PEEKDATA, pid, sp, 0);
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sp += 4;
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auxVal = ptrace(PTRACE_PEEKDATA, pid, sp, 0);
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sp += 4;
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sprintf(obuf, "0x%08x: Auxiliary vector = {0x%08x, 0x%08x}\n",
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sp - 8, auxType, auxVal);
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os << obuf;
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} while(auxType != 0 || auxVal != 0);
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//Print out the argument strings, environment strings, and file name.
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string current;
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uint32_t buf;
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uint32_t currentStart = sp;
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bool clearedInitialPadding = false;
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do
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{
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buf = ptrace(PTRACE_PEEKDATA, pid, sp, 0);
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char * cbuf = (char *)&buf;
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for(int x = 0; x < sizeof(uint32_t); x++)
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{
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if(cbuf[x])
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current += cbuf[x];
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else
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{
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sprintf(obuf, "0x%08x: \"%s\"\n",
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currentStart, current.c_str());
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os << obuf;
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current = "";
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currentStart = sp + x + 1;
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}
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}
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sp += 4;
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clearedInitialPadding = clearedInitialPadding || buf != 0;
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} while(!clearedInitialPadding || buf != 0 || sp <= highestInfo);
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return os;
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}
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bool ARMTraceChild::step()
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{
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const uint32_t bkpt_inst = 0xE1200070;
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const uint32_t bkpt_mask = 0xFFF000F0;
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const uint32_t swi_inst = 0x0F0000000;
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const uint32_t swi_mask = 0x0F0000000;
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uint32_t next_op = ptrace(PTRACE_PEEKDATA, pid, getPC(), 0);
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if ((next_op & swi_mask) == swi_inst) {
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ptrace(PTRACE_POKEDATA, pid, next_op + sizeof(uint32_t), bkpt_inst);
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ptraceSingleStep();
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ptrace(PTRACE_POKEDATA, pid, next_op + sizeof(uint32_t), next_op);
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}
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else
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{
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ptraceSingleStep();
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}
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}
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TraceChild * genTraceChild()
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{
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return new ARMTraceChild;
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}
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113
util/statetrace/arch/tracechild_arm.hh
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113
util/statetrace/arch/tracechild_arm.hh
Normal file
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@ -0,0 +1,113 @@
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/*
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* Copyright (c) 2009 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Ali Saidi
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* Gabe Black
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*/
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#ifndef TRACECHILD_ARM_HH
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#define TRACECHILD_ARM_HH
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#include <cassert>
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#include <string>
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#include <sys/user.h>
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#include <sys/ptrace.h>
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#include "tracechild.hh"
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class ARMTraceChild : public TraceChild
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{
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public:
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enum RegNum
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{
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// r0 - r3 argument, temp, caller save
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// r4 - r10 callee save
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// r11 - FP
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// r12 - temp
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// r13 - stack
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// r14 - link
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// r15 - pc
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R0, R1, R2, R3, R4, R5, R6, R7,
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R8, R9, R10, FP, R12, SP, LR, PC,
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CPSR,
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numregs
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};
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private:
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char printBuffer[256];
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static const char *regNames[numregs];
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uint32_t getRegs(user_regs& myregs, int num);
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user_regs regs;
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user_regs oldregs;
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bool regDiffSinceUpdate[numregs];
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protected:
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bool update(int pid);
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public:
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ARMTraceChild();
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bool sendState(int socket);
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int getNumRegs()
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{
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return numregs;
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}
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bool diffSinceUpdate(int num)
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{
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assert(num < numregs && num >= 0);
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return regDiffSinceUpdate[num];
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}
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std::string getRegName(int num)
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{
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assert(num < numregs && num >= 0);
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return regNames[num];
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}
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int64_t getRegVal(int num);
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int64_t getOldRegVal(int num);
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bool step();
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uint64_t getPC()
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{
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return getRegVal(PC);
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}
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uint64_t getSP()
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{
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return getRegVal(SP);
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}
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char * printReg(int num);
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std::ostream & outputStartState(std::ostream & os);
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};
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#endif
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@ -33,6 +33,8 @@
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#elif defined __amd64__
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#elif defined __amd64__
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// #error "AMD64 architecture not implemented"
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// #error "AMD64 architecture not implemented"
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#include "arch/tracechild_amd64.cc"
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#include "arch/tracechild_amd64.cc"
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#elif defined __arm__
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#include "arch/tracechild_arm.cc"
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#elif defined __hppa__
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#elif defined __hppa__
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#error "Hppa architecture not implemented"
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#error "Hppa architecture not implemented"
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#elif defined __i386__ || defined __i486__ || \
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#elif defined __i386__ || defined __i486__ || \
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