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actually compare xmm.
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after system calls.
Because of peculiarities in how system calls are returned from, single stepping executes some system calls and the instruction following them in a single step. Statetrace now patches the executable image when it detects a system call to force "correct" behavior, aka the appearance of stepping one instruction every single time.
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The address of the stackpointer proceeding the vector minus 8 should be minus 16.
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into mercurial.
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it's single stepping code.
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register numbers correlate to the numbers used in SPARC in m5 and statetrace.
src/cpu/exetrace.cc:
Fixed up to deal with microcode, and to make floating point register numbers correlate to the numbers used in SPARC.
util/statetrace/arch/tracechild_sparc.cc:
util/statetrace/arch/tracechild_sparc.hh:
Make floating point register numbers correlate to the numbers used in SPARC.
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statetrace is also already taken.
util/statetrace/Makefile:
Makefile to build statetrace. Targets are:
statetrace: alias to build using the "native" compiler
statetrace-native: use the native compiler
statetrace-sparc: use the sparc cross compiler
I'll make this a little more fancy and capable later.
util/statetrace/arch/tracechild_i386.cc:
Implementation of i386 support
util/statetrace/arch/tracechild_i386.hh:
Declaration of i386 support
util/statetrace/arch/tracechild_sparc.cc:
implementation of SPARC support
util/statetrace/arch/tracechild_sparc.hh:
declaration of SPARC support
util/statetrace/printer.cc:
Implementation of the "Printer" objects which parse and output the state of the process after each instruction. There are currently two types of printers, nested ones and register ones. These are called NestingPrinter and RegPrinter respectively.
util/statetrace/printer.hh:
Declaration of "Printer" objects
util/statetrace/refcnt.hh:
This is copied from m5. I should use the one already in the tree, but I'll do that later.
util/statetrace/regstate.hh:
Interface for accessing registers.
util/statetrace/statetrace.cc:
Main file with argument parsing and the "main" function which contains the tracing loop.
util/statetrace/tracechild.cc:
Implementation of the base tracechild class.
util/statetrace/tracechild.hh:
Declaration of the base tracechild class.
util/statetrace/tracechild_arch.cc:
This file hooks in support for the appropriate architecture. Just the implementation is brought in, since the main program should ideally not have to know anything at all about an architecture other than it's interface.
util/statetrace/x86.format:
An example output template for x86. A few example SPARC templates will be added later.
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