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fail/doc/how-to-build.txt
hsc e94773937b documentation update for build-system changes 
+script snippet on how to automatically fill the bochslibs/ directory

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1417 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
2012-07-03 16:11:15 +00:00

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=========================================================================================
Additional libraries/packages/tools needed for Fail*:
=========================================================================================
Required for Fail*:
**********************************************************************
- libprotobuf-dev
- libpcl1-dev
- libboost-thread-dev
- protobuf-compiler
- cmake
- cmake-curses-gui
- AspectC++ (ag++, ac++): AspectC++ 1.1 or newer is known to work and can be
obtained from http://www.aspectc.org; nightlies can be downloaded from
http://akut.aspectc.org
Required for the Bochs simulator backend:
**********************************************************************
- libpthread
- Probably more, depending on, e.g., the GUI you configure (X11 ->
libxrandr-dev)
For distribution/parallelization:
**********************************************************************
- rsync
- tmux
32-bit FailBochs on x86_64 Linux machines:
**********************************************************************
- Create a "bochslibs" directory and fill it with all necessary libraries from
your build machine:
$ mkdir bochslibs
$ cp -v $(ldd fail-client|awk '{print $3}'|egrep -v '\(|lib(pthread|selinux|c.so.)|^$') bochslibs/
- Copy this directory to ~/bochslibs on all machines lacking these libraries
(this may also be the case for i386 machines you cannot install library
packages on yourself). client.sh will add ~/bochslibs to LD_LIBRARY_PATH if
it exists.
=========================================================================================
Compiling, building and modifying: Simulators and Fail*
=========================================================================================
Building Fail*:
**********************************************************************
For the first time:
------------------------------------------------------------
1. Enter the "fail/" directory (${FAIL_DIR}, see also "fail-structure.txt"):
$ cd fail/
2. (Optional) Cleanup previous CMake remnants:
$ find -name CMakeCache.txt | xargs rm
3. Create out of source build directory (${BUILD_DIR}, see also "fail-structure.txt"):
$ mkdir build
Note that currently this build directory must be located somewhere below
the fail/ directory, as generated .ah files in there will not be included
in the compile process otherwise.
4. Enter out-of-source build directory. All generated files end up there.
$ cd build
5. Generate CMake environment.
$ cmake ..
6. Setup build configuration by opening the CMake configuration tool
$ ccmake .
Select "BUILD_BOCHS" or "BUILD_OVP". Select an experiment to enable by
naming its "experiments/" subdirectory under "EXPERIMENTS_ACTIVATED".
Configure Fail* features you need for this experiment by enabling
"CONFIG_*" options. Press 'c', 'g' to regenerate the build system.
(Alternatively use
$ cmake-gui .
for a Qt GUI.) To enable a Debug build, choose "Debug" as the build type,
otherwise choose "Release".
7. Additionally make sure Bochs is at least configured (see below).
After changes to Fail* code:
------------------------------------------------------------
Prerequisite, if you're building with Bochs: configure Bochs (see below).
Compile (in ${BUILD_DIR}, optionally "add -jN" for parallel building):
$ make
CMake will build all Fail* libraries and link them with the simulator backend
library to a binary called "fail-client". You may use the shell script
$ ${FAIL_DIR}/scripts/rebuild-bochs.sh [-]
to speed up repetitive tasks regarding Fail/Bochs builds. This script contains
a concise documentation on itself.
Add new Fail* sources to build chain:
------------------------------------------------------------
To add new source files to the build, see CMakeLists.txt in the subdirectory of the
corresponding component in "${FAIL_DIR}/src/core/", and probably consultate the
CMake docs: http://cmake.org/cmake/help/documentation.html
Add new experiment/plugin/campaign:
------------------------------------------------------------
Look at "${FAIL_DIR}/src/experiments/coolchecksum/" as a template. After creating a
new subdirectory in "experiments/", activate it in the CMake configuration step (see
above).
Generating the Doxygen documentation for Fail*:
**********************************************************************
To generate the Doxygen documentation, type:
$ make doc
The documentation files (HTML and LaTeX) are located in "${BUILD_DIR}/src/core/doc/".
To open the HTML documentation, type:
$ firefox src/core/doc/html/index.html
(You may want to replace "firefox" with your favourite browser.) The LaTeX docs need
to be compiled previously:
$ cd src/core/doc/latex; make
Building FailBochs:
**********************************************************************
For the first time:
------------------------------------------------------------
1. Change to the Bochs simulator directory (expects to be in ${FAIL_DIR}):
$ cd simulators/bochs
2. Configure the Bochs simulator (auto-tools).
- Sufficient:
$ ./configure --prefix=$(echo ~/localroot/usr) --enable-{cpu-level=6,ne2000,trace-cache,gdb-stub} --disable-docbook
- More optimised:
$ ./configure --prefix=$(echo ~/localroot/usr) --enable-{a20-pin,x86-64,cpu-level=6,ne2000,acpi,pci,usb,repeat-speedups,trace-cache,fast-function-calls,host-specific-asms,disasm,all-optimizations,readline,clgd54xx,fpu,vmx=2,monitor-mwait,cdrom,sb16=linux,gdb-stub} --disable-docbook --with-all-libs
Instead of --with-all-libs, you could use --with-nogui for "headless" experiments,
additionally removing lots of library dependencies (thus reducing startup overhead).
--with-x11 enables only the "x" (X11), --with-wx only the "wx" (wxWidgets) GUI.
Note that "wx" does not play well together with Fail*'s "restore" feature (FailBochs
will fall back to "x" if available, or die trying.)
Once you know everything works as it should, you may want to add the
following flags before running larger campaigns:
--disable-logging --disable-assert-checks
FIXME: Remove more redundant flags/libraries
After changes to Bochs code:
------------------------------------------------------------
- Just re-run "make" in ${BUILD_DIR}, or call "scripts/rebuild-bochs.sh -".
The latter automatically runs "make install" after rebuilding fail-client
(and probably the experiment's campaign server).
- Cleaning up (forcing a complete rebuild of libfailbochs.a next time):
$ make bochsallclean
This is especially necessary if you changed a Bochs-affecting aspect header
(.ah), as the build system does not know about Bochs sources depending on
certain aspects.
Debug build:
------------------------------------------------------------
Configure Bochs to use debugging-related compiler flags (expects to be in ${BUILD_DIR}):
$ cd ../simulator/bochs
$ CFLAGS="-g -O0" CXXFLAGS="-g -O0" ./configure --prefix=... ... (see above)
You might additionally want to configure the rest of Fail* into debug mode by
setting CMAKE_BUILD_TYPE to "Debug" (ccmake, see above).
Profiling-based optimization build:
------------------------------------------------------------
FIXME: ag++ needs to be run with --keep_woven
Configure Bochs to use compiler flags to enable profiling:
$ cd ../simulator/bochs
$ CFLAGS="-fprofile-generate" CXXFLAGS="-fprofile-generate" LDFLAGS="-fprofile-generate" ./configure --prefix=... ... (see above)
Build Bochs normally, and run it. Configure Bochs to use compiler flags to enable
optimizations based on profiling results:
$ CFLAGS="-fprofile-use -Wcoverage-mismatch" CXXFLAGS="-fprofile-use -Wcoverage-mismatch" LDFLAGS="-fprofile-use" ./configure --prefix=... ... (see above)
Benchmarking:
------------------------------------------------------------
Simple instructions/second measurement:
- Configure Bochs with --enable-show-ips (see above)
- Modify the bochsrc: print_timestamps: enabled=1
Comparison IPS numbers are shown in the default "bochsrc". Headless bochsrc configuration,
all aspects disabled, guest system executes endless loop, host CPU Xeon X5470 (3.33GHz):
IPS: 66124283 average = 66964789
Building OVP for ARM Cortex-M3:
**********************************************************************
For the first time:
------------------------------------------------------------
1. Get a license from http://www.ovpworld.org/
2. Download the following files:
- Downloads -> Main OVP Download including OVPsim Simulator
- Downloads -> ARM -> ARM OVP Cortex-M Profile Model
-> Self contained ARM Cortex-M examples
-> ARM GNU GCC and GDB tools
3. Install OVP by running the self-extracting archives.
4. Get Sourcery CodeBench Lite Edition from
http://www.mentor.com/embedded-software/codesourcery
(ARM processors -> EABI release)
5. Install the self-extracting archive, or use the installation in
/fs/proj/compiler/codesourcery-arm-eabi (DO, ios/kos)
TODO: Source setup.sh, setupImperas ...
TODO: Fix Hard-coded paths
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