This is a copy of the generic-tracing plugin for CoRedOS with the following
additions:
- random generator plugin is added if a "random_source" symbol is found
- checkpoint plugin is added if a "fail_trace" symbol is found. If stack
limits are defined by "_sstack" and "_estack" symbols this memory region
is checksummed on each checkpoint.
Change-Id: I00403ed917ad941d87ac2aeabd00c441135d9af4
The checkpoint plugin watches for writes on the given symbol and logs
the written value and the simulation time to a given output file.
Additionally, a SHA1 hash is computed over all memory locations between
given start and stop symbols.
On x86, virtual memory is disabled while computing the checkpoint hash.
This means the checkpoint plugin in checksumming over physical, not
virtual, address ranges! This can result to unexpected behaviour if
virtual memory is not used for identity paging.
To save checkpoint information to a file, use the Checkpoint constructor
with a given checkpoint symbol and add the plugin to the experiment (flow).
To check checkpoints against an existing file, use the constructor without
memory symbol and do not add the plugin to the experiment. Instead, define
a memory listener "manually" and call the check() function. This approach
was taken as the simplest form of cooperation between experiment and
plugins.
For SHA1 calculation, C code from RFC 3174 is used to prevent depending
on another external library. However, this may not be the fastest or
best code for the task.
TEMPORARY HACK/WORKAROUND:
Since dOSEK uses the highest bit (31) of some pointers for parity and
the checksum plugin reads these (stack) pointers to determine checksum
regions, the plugin currently DISCARDS BIT 31 of pointers used as
dynamic region limits.
This will be replaced in the future by a callback mechanism, which lets
the experiment specify the regions to checksum (called at each checkpoint).
Change-Id: I176eccc34b582bbf13e52b6943191dd20258acc5
assert(...) can be optimized away, therefore side-effect code should not
be placed inside an assertion.
Change-Id: I28aee42e53cb105333094d0042a3f6e2cc5b5a30
Since we know for which variant we want to have the completed pilots, we
do not have to catch all pilot_ids but only those who of pilots that are
finished and have the correct variant_id. This speeds the startup of the
campaign server enormously when having many completed campaigns in the
database.
Change-Id: I8be584a2dd6d8d7315f30dcb5bff89647353001e
This change renames the logger object used in weather-monitor from
"log" to "LOG" in order to circumvent potential naming conflicts
with e.g. the log() function from e.g. math.h/cmath.
Change-Id: I73758374f76ea5c29cb636ae3e0685a4a4cceacb
This commit modifies the weather-monitor experiment so that it
uses util/ElfReader instead of "nm -C" in a wrapper-script to
determine the various symbol addresses. experimentInfo.hpp now
only contains (rudimentary) configuration data for the experiment.
Furthermore this commit modularizes the experiment's code so that
there no longer is a humongous run() method.
Change-Id: I42461e1dabb5050af372810bb9fb61a6fccd0d99
This change removes an unnecessary "#ifndef __puma" from the LLVM
disassembler test code and fixes compilation with the latest AspectC++
binaries.
Change-Id: Ibe835a4a6df69255555c668985f15b9cf8fb82b4
Up to now, the IOPortListener only caught invocations of INB/OUTB with
the port number in DX and 8-bit input/output (from/to AL), but none of
the various other methods to access the I/O port range (e.g., by 8-bit
immediate port numbers). This change is supposed to catch all other
cases, too.
Change-Id: I1180cd9c1d59df600067739817adab684b18a608
This enables commonly used event sources and other backend features to
avoid newcomers not getting their first experiments to work. The
performance impact is not really a problem, but for optimal throughput
unused features can still be disabled.
Change-Id: Id507474eab4647137ce82cb8674fe23f7102975a
gethostbyname() doesn't set errno but h_errno. Thus, we need to call
herror() instead of perror() to print an appropriate error message.
(Thanks, Björn.)
Change-Id: I8fd4bdd4af41774dd290151c5ad37090d006f423
The disassembled memory region's end (variable "End") is exclusive
now. Up to now, the two branches defining this variable disagreed on
inclusiveness, leading to an infinite loop in one case.
Change-Id: I055fc240f6ec2f4a1d1937e48617c86612cff5c5
Since commit c142818, DatabaseCampaignMessage.proto is generated into
the binary directory, which must be announced to the protobuf
compiler.
Change-Id: I0c3c4c6525df687012330573979dc897dfa8d701
Enabling both CONFIG_FAST_BREAKPOINTS / CONFIG_FAST_WATCHPOINTS and
CONFIG_EVENT_BREAKPOINTS / CONFIG_EVENT_BREAKPOINTS_RANGE /
CONFIG_EVENT_MEMREAD / CONFIG_EVENT_MEMWRITE led to an (unnecessary)
include cycle.
Change-Id: I8144e3e72da69b98e21a844a4bfded1b77bdce07
This change allows to use the generic-tracing experiment with a
manually specified start/stop address. This is necessary to use it
with more complex systems that aren't booted from a single ELF file,
such as Fiasco.OC.
Change-Id: Iafc59f56a25a1949174724fa9ae32a1eafc5922a
This fixes a gcc 4.7 warning: comparison between signed and unsigned
integer expressions [-Wsign-compare].
Change-Id: If440567c2767494f456e8e68df29e2f8d1582955
BochsController::getTimerTicksPerSecond() only works reliably when the
simulation is already running (e.g., after a restore()). This broke
timeout conditions for the very first experiment in a FailBochs instance.
Change-Id: Ice5f0aa0c6759f2d9341ad4f21d5c346307b4c12
This change makes the DatabaseCampaign load all pilot_ids from the result
table in memory instead of LEFT JOINing them for each variant. This vastly
improves campaign speed (possibly making commit 5567c59 superfluous) at the
cost of slightly increased startup time for half-completed (large)
campaigns.
By exploiting the generally continuous nature of pilot IDs and using a
boost::icl::interval_map, the additional memory requirements are
insignificant.
Change-Id: I1e744fb9ca33efea77a2a785cea3c94106f360df
When no variants matching the command line parameters were found, the
campaign printed an uninitialized sent_pilots count.
Change-Id: Ib1d70ae86f02059daeb9a62567d6c83802e4986e
The fix for tools/convert-trace/Gem5Converter.cc repairs a real issue
which caused a runtime warning to never be displayed.
Change-Id: I5d94acdbffc99d5f2a78f047062c011c6f8ab4e3
This crippled version of the weather-monitor experiment is not needed
anymore, as gem5's restore() works now.
Change-Id: Icc3bced6b04241d55f2acc46f341cf553b6dbd08
This change implements a generic registry in order to clean up import-trace's
code - it's possible (and reasonable) to use the registry for pruners as well.
Importer now extends AliasedRegisterable; all importers have been adapted
to suit the interface/abstract methods.
Each AliasedRegisterable should have at least one alias (the class' name
is a sensible choice) but can have several. The first specified alias is
the class' prime alias which can be used e.g. to list all registered objects.
Change-Id: If6daa34edce35a3b0194e4ba67ed3b44b74a49b0
