This repository contains a Pintool that logs the program counter and address of all memory writes to a compact on-disk log, plus some simple tools to examine that log.
The tools are written in Go, so the recommended way to fetch this repository is
go get github.com/aclements/memtrace
You'll need Intel Pin.
Set PIN_ROOT to the location of your Pin installation. E.g.,
export PIN_ROOT=$HOME/opt/pin-2.14-71313-gcc.4.4.7-linux
To build, simply run make. This will generate a .so plug-in for
Pin.
To run a command and log its memory accesses, run
$PIN_ROOT/pin.sh -t obj-intel64/memtrace.so -- CMD
where CMD is the command you want to trace. This will generate a
memtrace.log file.
The cmd directory contains some simple tools for processing memory
logs. To build these a tool, change to its directory and run go build.
cmd/dump prints the records from a trace, optionally narrowed to a
range of records. This is useful for seeing the details around a
particular time in program execution once another tool has been used
to find interesting points in execution.
cmd/pcs prints the program counters of all writes to a particular
address.
The memtrace directory contains a Go package for reading the log
format. You can build your own tools to process memory logs using this
package.