This was necessary because LLVM 3.1's
ELFObjectFile<ELFT>::sectionContainsSymbolsectionContainsSymbol() (needed
for proper functioning of our LLVM disassembler, unless you're using
-ffunction-sections) is "unimplemented".
Change-Id: I81112627ebd1c92b718ac6f4ed58d7f188aedf0c
The random jump importer defines trace events, that indicate all
possible jumps into a specific instruction range. The region where
jumps should start can be defined by a memory map given with
--jump-from. For each instruction declared in that memory range, all
possible jumps to a memory region specified by with --jump-to are
inserted. The target of the jump is saved in the data_address
field. So all database tools work as expected.
for each event E \in region(--jump-from):
foreach Instruction in region(--jump-to):
insert_trace(injection_instr = E.IP(), data_address = Instruction.addr)
Change-Id: Ie163968acae47fc6c946fc77774c47ee07950bab
The RegisterImporter disassembles the binary and adds a trace event
for each byte read or written from register. The register number (Fail
Register Numbers are used) and the offset within the register are
encoded within the trace event.
Change-Id: I2d2fd720841fedeeff5f28b64f24ec5f6d2ea0c3
The InstructionImporter does disassemble the binary and generate read
traces for every instruction byte executed.
Change-Id: I6b8697c711c009e106ed733c74c6ff8f9bbf8ac5
The variant/benchmark selection now can use SQL LIKE syntax, all unfinished
pilots from all selected variants are sent to the clients. E.g.:
./cored-voter-server -v x86-cored-voter -b simple-% -p basic
Will select the fsppilots in the variants:
- x86-cored-voter/simple-ip/basic
- x86-cored-voter/simple-instr/basic
The variant and benchmark information is now sent within the
fsppilot.
Change-Id: I287bfcddc478d0b79d89e156d6f5bf8188674532
The LLVM Disassembler infrastructure can be used to analyze many kinds
of ELF Binaries. For every instruction the used and defined registers
is available as well as information about the instruction itself.
Change-Id: I9cc89b6c116ceff7b5143a6f179ae31c4e994d2d
The build system now allows incremental gem5 builds. Unfortunately,
the current solution always requires re-linking the executable.
Without the enforcement of re-linking, the fail code will be rebuilt
but not linked into gem5.
The number of cores for building gem5 is derived from /proc/cpuinfo.
As before, only the gem5.debug configuration is supported.
Change-Id: Ib13b15d1ecd62196eb251e0fd00953f4eb052feb
- Don't enforce the join order, MariaDB usually gets this right.
- Update DB statistics before terminating.
Change-Id: If7bbbe146321430d199811062d05b3c179c5732f
data_address is definitely part of the unique key to trace entries, but
instr2 is arbitrary (could be instr1, time1 or time2 as well). Moving
data_address up the hierarchy to speed up certain FSP experiments.
Change-Id: I37a1f6c1e5b3957ba2f5bf46e0cd1a9c4aa7bfef
When recording a "full" trace (register values, plus dereferenced
values), we use a fixed dereference size of 4 bytes.
Change-Id: Ifbf6730377e7df2e7f1fc1e6b91bc114ccf10fbc
This does enable % patterns in variant and benchmark selections, like
it is already implemented in the prune-tool.
Change-Id: I7497bfd588d6ffdf851d767bafc660f4872ae92f
BasicImporter is renamed to MemoryImporter. An alias for BasicImporter
in the cmdline interface will remain. The MemoryImporter does now only
handle memory and IP events. The simulation time, dynamic instruction
count and handling of open ECs is moved to Importer.
Change-Id: I04eb0fd4b52fbf5b0ca9ab97778a62130cb626ee
This importer is so similar to the basic importer, that it can be
dropped. The current state was used in the SOBRES 2013 Paper.
Change-Id: Ibed1af6e1a72286500d42e83e594557d6dcf3803
The correct flags accessor methods should be used to write the flags register,
since values (especially the arithmetic flags) might be cached.
Change-Id: I338927cfdd1f111966be539668914c9256b54c8f
The client sends results back earlier (i.e., before all jobs are
done) if the client response time (CLIENT_JOB_REQUEST_SEC) is
exceeded. This makes sure that extraordinarily long-running
experiments get reported back before, e.g., the LIDO job timeout
kills the Fail* instance.
Change-Id: I3ada0360ec54b63f80a7008570ca514449720220
It is no longer required (and recommended) to write a dependency
check (using conditional compilation) in the experiment code. Instead,
the Fail code performs these checks itself. If an experiment is
compiled without having the required configuration flags set to
enabled, the compiler emits an error. This is because the constructors
of unused listener classes are declared as protected. (Note that
this works only because the Fail code does not create any listeners.)
In a next step, one should remove all the dependency guards in the
existing experiments (not needed anymore).
Change-Id: I1331813a432a752322d510b4102da53ff53294f0
The new parameter -s/--stats shows trace statistics such as number of
instructions, number of memory reads/writes, and duration in simulator
time.
Change-Id: I39a48ff62d9c308c420fe52e7ed17ed57ae9c139
Quoting connect(3posix): "If connect() fails, the state of the socket is
unspecified. Conforming applications should close the file descriptor and
create a new socket before attempting to reconnect."
Change-Id: Ibcdcc0f546560a41009832894659a37947243f2f
We need to cover the complete fault space when a memory map is
provided. This means fake trace entries for completely unaccessed
addresses (e.g., unused parts of the stack), and makes sure we include
all of our fault space in the statistics later.
Without a memory map, we just don't know the extents of our fault
space; just guessing by using the minimum and maximum addresses is not
a good idea, we might have large holes in the fault space.
Change-Id: Ieb4b30a2e41a9921b969bf88513bfbacfc290c93
The previous fault injection experiment was kind of bullshit. This one
is better in several ways:
- sanity check at injection time (correct IP)
- correct counting of kernel_transistions
- copy whole activation scheme
Change-Id: I014eea4d6fe103bc02ffd7bbca95dc56a1a4d9ea
Is now very similar to normal importer, and may be deleted in the future, but
at the moment, this should be merged, since it is the importer used in the
sobres-2013 paper.
This changes the MySQL Schema. instr1_absolute was introduced.
Change-Id: I1bc2919bd14c335beca6d586b7cc0f80767ad7d5
Doxygen skips undesired directories and files now. In addition, the
documentation of the "fail" namespace has been fixed. Note that there
are still several warnings (due to incomplete documentations) in the
Doxygen output.
Change-Id: Idad4f1ecff453765b307fa40a5c1cebc0c2ce2bb
The checkpoint which is produced by this save method is a little bit
different to the checkpoint which is produced by the --take-checkpoint
command. It differs in the save-parameters so_state, funcExeInst, intRegs,
_upc, _nupc, _when. Tests have shown that it probably does not affect the
course of the program execution.
Change-Id: Id776a10f2d40f71643e9edbb45d7368609309df4
The checkpoint which is produced by this save method is a little bit
different to the checkpoint which is produced by the --take-checkpoint
command. It differs in the save-parameters so_state, funcExeInst, intRegs,
_upc, _nupc, _when. Tests have shown that it probably does not affect the
course of the program execution.
Change-Id: I19b3fc809288224532e0ed6b7910a45115cb1c5d
