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Needed to get std io to work in some OSE systems where stdio
is not opened when the program starts.
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As any scheduler process can consume any message we have
to make sure that the message is owned by the scheduler
before returning it in erl_drv_ose_get_signal.
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* bjorn/erts/fp-exceptions-on-osx:
Disable accidentally enabled floating point exceptions on MacOS X
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In c7ddafbe, which disabled floating point exceptions on Linux,
floating point exceptions were accidentally enabled on MacOS X.
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* sverk/hipe-disable-gc-bug:
erts: Fix heap overwrite by hipe "trap frames" when GC is disabled
ASSERT that GC is not tried with "need" when GC is disabled
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by trapping BIFs like term_to_binary and binary_to_term.
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* lukas/erts/float_encoding/OTP-11738:
erts: Set default external enc to use new float scheme
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* lukas/ose/master/OTP-11334: (71 commits)
erts: Fix unix efile assert
ose: Use -O2 when building
ose: Expand OSE docs
ose: Add dummy ttsl driver
ose: Cleanup cleanup of mutex selection defines
ose: Polish mmap configure checks
ose: Add ose specific x-compile flags
ose: Updating fd_driver and spawn_driver for OSE
ose: Updating event and signal API for OSE
ose: Cleanup of mutex selection defines
win32: Compile erl_log.exe
ose: Remove uneccesary define
ose: Fix ssl configure test for osx
erts: Fix sys_msg_dispatcher assert
ose: Fix broken doc links
ose: Thread priorities configurable from lmconf
ose: Yielding the cpu is done "the OSE" way
ose: Start using ppdata for tse key
ose: Do not use spinlocks on OSE
ose: Fix support for crypto
...
Conflicts:
lib/crypto/c_src/crypto.c
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If writev return an error (eg ENOSPC) we do not want to abort here
but instead propagate upwards into erlang.
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erl_log is used together with debug emulator.
Use 'erl -debug -console' to get a denug console.
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Schedulers is too restrictive. Managed threads should be
able to clean this up.
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The pattern used for getting the priority from the lmconf
is based on the name of the process created. The pattern is:
ERTS_%%PROCESS_NAME%%_PRIO
with the %%PROCESS_NAME%% replaced by the prefix of the process
the priority applies to. eg:
ERTS_SCHEDULER_PRIO=24
applies to processes with name SCHEDULER_1, SCHEDULER_2 etc.
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This is because it is very easy to deadlock/livelock inbetween
processes on OSE.
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To enable it you have to modify the OSESSL variable in the
ose xcomp file.
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Now schedulers 2..N make sure to wake sched 1 if they
find that all io has been consumed and sched 1 is
sleeping. Before sched 1 was spinning in sys_schedule
waiting for sched 2..N to finish consuming io jobs
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Also removed softkernel lcf files.
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When opening filers on not mounted volumes the default
timeout on OSE is quite big and since at startup we load
something like 20 beam files this slows down startup by
as much as 50 seconds.
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Sometimes scheduler 1 should go in here and it will have signals,
so remove this. If needed later a check to see that fsem is used
for scheduler 1 is needed.
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Also deleted all the copy-paste stuff
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This is needed on OSs that do not do round robin scheduling
of threads.
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This is needed because when starting multiple processes
from the same shell command they will see the same
global data if using status variables.
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This is in preperation for writing ose version of run_erl and to_erl
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Create an specific OSE application that mainly contains documentation
around the OSE specific part of Erlang/OTP.
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This new API has less impact on the check_io code and
also removes the callback from ErlDrvEntry. The downside
is that you have to give the resolve function when creating
each event.
Also the mode if the resolve was removed as this mimics the
win32 code and decreases complexity.
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For some reason starting with pm_create offsets the
input argument list by one, so we have to adjust them
before calling erl_start.
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