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author | Gabe Black <gblack@eecs.umich.edu> | 2011-03-02 22:53:11 -0800 |
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committer | Gabe Black <gblack@eecs.umich.edu> | 2011-03-02 22:53:11 -0800 |
commit | 9d2650792fa41155773b22771acbabdb4fbb164a (patch) | |
tree | e5beba639942c7c2bd32fe7e9166b543a796a662 /util/statetrace/arch/i686/tracechild.cc | |
parent | 3bcd77ddef91c204b6fceceaf6bd5c9362bf1f98 (diff) | |
download | gem5-9d2650792fa41155773b22771acbabdb4fbb164a.tar.xz |
Statetrace: Rename i386 to i686.
--HG--
rename : util/statetrace/arch/i386/tracechild.cc => util/statetrace/arch/i686/tracechild.cc
rename : util/statetrace/arch/i386/tracechild.hh => util/statetrace/arch/i686/tracechild.hh
Diffstat (limited to 'util/statetrace/arch/i686/tracechild.cc')
-rw-r--r-- | util/statetrace/arch/i686/tracechild.cc | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/util/statetrace/arch/i686/tracechild.cc b/util/statetrace/arch/i686/tracechild.cc new file mode 100644 index 000000000..0ac977b4a --- /dev/null +++ b/util/statetrace/arch/i686/tracechild.cc @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2006 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 + */ + +#include <iostream> +#include <errno.h> +#include <sys/ptrace.h> +#include <stdint.h> + +#include "arch/i686/tracechild.hh" + +using namespace std; + +int64_t +I686TraceChild::getRegs(user_regs_struct & myregs, int num) +{ + assert(num < numregs && num >= 0); + switch (num) { + //GPRs + case EAX: return myregs.eax; + case EBX: return myregs.ebx; + case ECX: return myregs.ecx; + case EDX: return myregs.edx; + //Index registers + case ESI: return myregs.esi; + case EDI: return myregs.edi; + //Base pointer and stack pointer + case EBP: return myregs.ebp; + case ESP: return myregs.esp; + //Segmentation registers + case CS: return myregs.xcs; + case DS: return myregs.xds; + case ES: return myregs.xes; + case FS: return myregs.xfs; + case GS: return myregs.xgs; + case SS: return myregs.xss; + //PC + case EIP: return myregs.eip; + default: + assert(0); + return 0; + } +} + +bool +I686TraceChild::update(int pid) +{ + oldregs = regs; + if (ptrace(PTRACE_GETREGS, pid, 0, ®s) != 0) + return false; + for (unsigned int x = 0; x < numregs; x++) { + regDiffSinceUpdate[x] = (getRegVal(x) != getOldRegVal(x)); + } +} + +I686TraceChild::I686TraceChild() +{ + for (unsigned int x = 0; x < numregs; x++) + regDiffSinceUpdate[x] = false; +} + +int64_t +I686TraceChild::getRegVal(int num) +{ + return getRegs(regs, num); +} + +int64_t +I686TraceChild::getOldRegVal(int num) +{ + return getRegs(oldregs, num); +} + +TraceChild * +genTraceChild() +{ + return new I686TraceChild; +} |