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The maxallowedvalue of the watchdog timer was too small for the actual
usage of the timer. This regression was introduced in 243a06f0. So it
has no influence of already published research, since it only appears in
the osek-v branch.

Change-Id: I074d5b757e03bf8632e838a9f5cbd9e25ba2182e

Change-Id: I6e6703f873f3535d41e84a7c00fbec89010ab839

In order to compare the wired version of OSEK-V with something, we
implement a non-wired version (tradtional SW implementation) for osek-v.

Change-Id: Id5dbc865974f2cf44cd4104cb7ebcd83830fb89f

Change-Id: I22360809385c0d0ca69b98e34ce512217e1ab88d

The static alarm detection can be turned of for osek-v with
--static-alarms n. With this flag all counters and alarms are
instantiated dynamically.

Change-Id: I6cf44ed79ae60aebcdf9a375acd1ccb2fd450ea5

The extractor did not build under posix AND osek-v, since the headers,
which come with risc-v are weird.

Change-Id: I43be143492954487a4cbe0d2a206a69b75d206b6

Change-Id: I239c2c81f0946568c9a027d8c5004d0a691399f4

After removing the static alarms from the system, we can optimize the
timer irq frequency. We choose the GCD resolution of all dynamic
counters and let the timer interrupt with a lower frequency. We're only
allowed to do this optimization, if the underlying count has a lower
resolution.

Change-Id: Ic39c8f6db142baa97a7f50b19c23a7a1fe601eaa

Static alarms are not managed by the timer interrupt. We wipe them from
the implementation. If a counter has no present alarms anymore, we wipe
it from the timer interrupt. If no counter has to be ticked, the timer
interrupt is disabled, the Counter::tick() method becomes empty.

Change-Id: I9438c8cfa511b5163bbb477c2d5b4f2e0f469697

We will identify static alarms. A static alarm is configured running
within the OIL file, and is never touched by
CancelAlarm/SetRelAlarm/SetAbsAlarm. The OSEK-V architecture will not
emit code for manaing static alarms. They are managed by the hardware.

Change-Id: I7ebd5c06120cbdf6e36a60f2939b5a5f01eb5962

A few changes had to be done at the osek-v port in order to support
bench-coptermock application:

- interrupt support
- slower timer interrupt
- arch_startup has to return normally
- implement interrupt control system calls

Change-Id: I6fe5c046a9bd1fc6422c5abcc9aa2041cceae990

Change-Id: Icbff87011948f22e269824b772a48b3bda596804

remove some old cruft

Change-Id: Ie94b7dd352acec017979ce76fcc6d0f7fbd197b8

Prior to this cmake could only find "grub-mkrescue".

Change-Id: Id16ce4958d826953387c80865aafe47a5660eecd

In the FSM representation, interrupts are no longer modled as separate
tasks.

Change-Id: I3c9de5f629a5b36330e1339263700efabd34b822

Change-Id: If54efba52eed798bf95dda470f5b5bf714eb6f60

Change-Id: Ic2554caf81492cb93b73c423a28fa014c6288ce5

We explicitly enable the popcnt instruction in the code generation stage.

Change-Id: I799aabebede13da1dae3adc0e8cd864b4bc817f6

The priority of a task is caluclated from its dynamic-priority state
word and the event state words. Until now, we did not check this value
for being a correctly encoded value, which causes quite a number of SDCs
in the bench-coptermock-isorc numbers. Therefore, we check this value
for validity and hope for the best.

Change-Id: Ie95c1b64b56d79a6110455270fb099fee919269f

It is unwise to overwrite the set-event bitmask on a SetEvent system
call. ecc1_event1f will ensure the correct behavior in the future.

Change-Id: I98bf21664d381e6093c194ad0442ee168fc92764

Change-Id: I1d13300681efa07a74d2f82eef6a56f62e682fb1

Change-Id: I9a2790cf1dac9c068bd4ff98ae43d8bf9ba74613

Somes these testcases produced

  5{<><><>}33x

instead of

  5{<><><>}3x

This is not a application or OS bug, but a race condition with the
waiting times.

Change-Id: I1e847e13188b15d567ce4efd92f473a4f39a666b

The symbolic system execution is now able to enumerate all possible
system states with two different approaches. Either we can use the "old"
version which uses states with blocks to be executed in the next step,
like it is described in LCTES'15 (Dietrich et. al).

Or we can use the application finite state machines as basis. These
state machines are smaller (lesser nodes) than the application's
CFG. They are based on the task's ICFG.

Change-Id: I05e050ed3f39bd18ecf86b4d7bb423b4ce0825e0

The ApplicationFSM pass transforms the ICFG of a task to a finite state
machine. This construction is done by transforming CFG-edges to
FSM-states, and CFG-blocks to FSM-transitions.

In a second step, the CFG-computation blocks are handled as FSM-epsilon
transitions. Then a standard epsilon elimination is done for
subtask-FSM.

Change-Id: I874bc3b17ebaf16b58bb70226e5eef091e5cbbe9

Added a modifier for llvm bitcode files, which adds function attributes +
values to a specific function.

Change-Id: I57d71147c776686bfd18025d3090485b69da6bf8

Change-Id: Iebb4498dcb5c8a1ebb6bae8d13b75e4645e1cba6

Change-Id: I38d53965e1dfe1c337a946bc7d47239a62a5cd3e

Change-Id: I14a18026ef4e6320dd0c6da61fb8f6c4892ca16f

Not all bits in the cfg region word are used, therefore we can safely
reset them so a known state afterwards.

Change-Id: Ic059b80bf46f9a53742383025e495e653837cb68

Change-Id: I83cac7005d667bdfd2045f8e0e58c03bddf1a475

Inlining the scheduler reveals a high potential for specialization and
and SDC reduction. In the implementation of the zedboard benchmark, we
dropped the inlinability support. This is now possible again. With
inline-scheduler+specialization the scheduler is paritally instansiated
whereever possible.

Test-Config: --arch i386 --encoded=no --inline-scheduler=yes --specialize=yes
Test-Config: --arch i386 --encoded=no --inline-scheduler=yes --specialize=no
Test-Config: --arch i386 --encoded=no --inline-scheduler=no --specialize=yes
Test-Config: --arch i386 --encoded=no --inline-scheduler=no --specialize=no
Test-Config: --arch i386 --encoded=yes --inline-scheduler=yes --specialize=yes
Test-Config: --arch i386 --encoded=yes --inline-scheduler=yes --specialize=no
Test-Config: --arch i386 --encoded=yes --inline-scheduler=no --specialize=yes
Test-Config: --arch i386 --encoded=yes --inline-scheduler=no --specialize=no

Change-Id: I2749078a3cc4ebeeb19bde14eb769b5781ac409f

Inlining is hard. Convincing the compiler to actually inline the
systemcall bodies is even harder. Therefore we now use the always_inline
flag together with the -always-inline (llvm-opt) compiler
pass. Furthermore -gc-section drops all unused functions.

Change-Id: Ifd429e28ebb330944230076bca3886f4ef1171e3

Until know there where two different versions of scheduler.h.in, one for
encoded and one for the unencoded variant. In essence they were nearly
identical. Therefore, they could be unified without changing the
execution sequence.

Change-Id: Ifff4cd4a18bee135e286f330212aa14247cc2277

Like the last change, this one does not change the SDC rate, but does only make
them detectable by application/FAIL*. Until now, MPU faults were routed to isr_undetected

Change-Id: Iac81f8611753cafbddb6d1f9c4bbe505a788890e

Until now, unhandled interrupt resulted in a hanging machine. This did *not*
cause the SDC rates to change, but made the TIMEOUT numbers for fault injection
campaigns slightly too high.

Change-Id: I4616c5ddad66659bab604cd3ed5b5405ceea44ce

This includes using nm again, instead of llvm-nm.

Change-Id: Ic8b1b6054427ddaf028ece5e7758309ee0d4b3be

Change-Id: Ia516171592bc51c9fcef37fa9d2f2c9e947dd148

Change-Id: I5303f2cd78122dd07921a97c5a598254bc3915fd