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erts/preloaded/ebin/erl_prim_loader.beam
erts/preloaded/ebin/init.beam
erts/preloaded/ebin/prim_file.beam
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Conflicts:
erts/preloaded/ebin/atomics.beam
erts/preloaded/ebin/counters.beam
erts/preloaded/ebin/erl_prim_loader.beam
erts/preloaded/ebin/erl_tracer.beam
erts/preloaded/ebin/erlang.beam
erts/preloaded/ebin/erts_code_purger.beam
erts/preloaded/ebin/erts_dirty_process_signal_handler.beam
erts/preloaded/ebin/erts_internal.beam
erts/preloaded/ebin/erts_literal_area_collector.beam
erts/preloaded/ebin/init.beam
erts/preloaded/ebin/otp_ring0.beam
erts/preloaded/ebin/persistent_term.beam
erts/preloaded/ebin/prim_buffer.beam
erts/preloaded/ebin/prim_eval.beam
erts/preloaded/ebin/prim_file.beam
erts/preloaded/ebin/prim_inet.beam
erts/preloaded/ebin/prim_zip.beam
erts/preloaded/ebin/zlib.beam
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* richcarl/erts/erl_init-cleanup/OTP-15336:
sasl: Order systools_make:preloaded modules alphabetically
Update preloaded modules
Move calling on_load for preloaded modules to erl_init
Make erl_init.c pass the boot module to erl_init.beam
Remove obsolete comment text
Remove undocumented and unused -# display_items emulator option
Remove broken and undocumented boot function emulator option
Replace remaining references to otp_ring0 with erl_init
Drop otp_ring0, using erl_init instead
Update preloaded modules
Add erl_init module
Conflicts:
erts/emulator/beam/erl_init.c
erts/preloaded/ebin/erl_prim_loader.beam
erts/preloaded/ebin/erl_tracer.beam
erts/preloaded/ebin/erlang.beam
erts/preloaded/ebin/erts_code_purger.beam
erts/preloaded/ebin/erts_dirty_process_signal_handler.beam
erts/preloaded/ebin/erts_internal.beam
erts/preloaded/ebin/erts_literal_area_collector.beam
erts/preloaded/ebin/init.beam
erts/preloaded/ebin/otp_ring0.beam
erts/preloaded/ebin/prim_buffer.beam
erts/preloaded/ebin/prim_eval.beam
erts/preloaded/ebin/prim_file.beam
erts/preloaded/ebin/prim_inet.beam
erts/preloaded/ebin/prim_zip.beam
erts/preloaded/ebin/zlib.beam
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or backslash on Windows.
Purpose: Prevent tricks to get hostile code running.
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This improves the latency of file operations as dirty schedulers
are a bit more eager to run jobs than async threads, and use a
single global queue rather than per-thread queues, eliminating the
risk of a job stalling behind a long-running job on the same thread
while other async threads sit idle.
There's no such thing as a free lunch though; the lowered latency
comes at the cost of increased busy-waiting which may have an
adverse effect on some applications. This behavior can be tweaked
with the +sbwt flag, but unfortunately it affects all types of
schedulers and not just dirty ones. We plan to add type-specific
flags at a later stage.
sendfile has been moved to inet_drv to lessen the effect of a nasty
race; the cooperation between inet_drv and efile has never been
airtight and the socket dying at the wrong time (Regardless of
reason) could result in fd aliasing. Moving it to the inet driver
makes it impossible to trigger this by closing the socket in the
middle of a sendfile operation, while still allowing it to be
aborted -- something that can't be done if it stays in the file
driver.
The race still occurs if the controlling process dies in the short
window between dispatching the sendfile operation and the dup(2)
call in the driver, but it's much less likely to happen now.
A proper fix is in the works.
--
Notable functional differences:
* The use_threads option for file:sendfile/5 no longer has any
effect.
* The file-specific DTrace probes have been removed. The same
effect can be achieved with normal tracing together with the
nif__entry/nif__return probes to track scheduling.
--
OTP-14256
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* lukas/stdlib/maps_iterators/OTP-14012:
erts: Limit size of first iterator for hashmaps
Update primary bootstrap
Update preloaded modules
erts: Remove erts_internal:maps_to_list/2
stdlib: Make io_lib and io_lib_pretty use maps iterator
erts: Implement batching maps:iterator
erts: Implement maps path iterator
erts: Implement map iterator using a stack
stdlib: Introduce maps iterator API
Conflicts:
bootstrap/lib/stdlib/ebin/io_lib.beam
bootstrap/lib/stdlib/ebin/io_lib_pretty.beam
erts/emulator/beam/bif.tab
erts/preloaded/ebin/erlang.beam
erts/preloaded/ebin/erts_internal.beam
erts/preloaded/ebin/zlib.beam
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26b59dfe67 introduced the new 'AtU8' chunk to support
Unicode atoms.
make_preload strips the pre-loaded BEAM files so that they
only contain essential chunks. It expects to find the old
'Atom' chunk.
Teach make_preload to read the new 'AtU8' chunk instead of the old
chunk. Also produce a nice error message if someone by mistake
compiles the pre-loaded modules with an OTP 19 compiler.
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A bad directory in the path would prevent the run-time system
from starting:
$ echo >foobar
$ erl -pa foobar
{"init terminating in do_boot",{load_failed,[supervisor,kernel,gen_server,file_io_server,filename,file,erl_parse,error_logger,code_server,erl_lint,proc_lib,code,application_controller,application_master,gen_event,application,error_handler,lists,heart,gen,file_server,ets,erl_eval]}}
Crash dump is being written to: erl_crash.dump...done
init terminating in do_boot ()
The reason is that when attempting to read each of the BEAM files,
there would be an 'enotdir' error which
erl_prim_load:get_modules/2,3 assumed was a fatal error.
Update erl_prim_load:get_modules/2,3 to ignore any error and try
the next directory in the path.
Reported-by: http://bugs.erlang.org/browse/ERL-142
Reported-by: Michael Truog
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Conflicts:
erts/preloaded/ebin/erl_prim_loader.beam
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* nox/filelib-wildcard-broken-link:
Update stdlib appup file
Update runtime dependencies
Update preloaded
Add tests of filelib and symlinks
Fix handling of broken symlinks in filelib
Conflicts:
erts/preloaded/ebin/erl_prim_loader.beam
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