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This introduces a similar optimisation for normal funs
to what was introduced for external funs in #1725.
It is possible to allocate the fun as a literal, if it does not capture
the environment (i.e. it does not close over any variables).
Unfortunately it's not possible to do this in the compiler due to
problems with representation of such functions in the `.beam` files.
Fortunately, we can do this in the loader.
Simple evaluation shows that functions that don't capture the
enviornment consistute over 60% of all funs in the source code of
Erlang/OTP itself.
The only downside is that we lose a meningful value in the `pid` field
of the fun. The goal of this field, beyond debugging, was to be
able to identify the original node of a function. To be able to still do
this, the functions that are created in the loader are assigned the init
pid as the creator.
To solve issues with staryp, initially set the `erts_init_process_id`
to `ERTS_INVALID_PID` and skip the described optimisation if the value
is still uninitialised.
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* sverker/broken-sig-queue:
erts: Cleanup in proc_queue_signal
erts: Fix broken signal queue
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* Remove 'last' arg to sig_enqueue_trace_cleanup
* Only notify 'rp' if enqueue succeeded
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broken on master by
613cde66c25464121f2f6dace99782bad0e07d9b
Scenario:
proc_queue_signal() fails to send switched pending signal
due to state & ERTS_PSFLG_FREE,
and then calls erts_proc_sig_send_monitor_down() to enqueue to self
followed by sig_enqueue_trace_cleanup() that destroyed 'next' pointer
of enqueued signal.
Solution:
Switch order and do sig_enqueue_trace_cleanup() first.
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* maint:
Updated OTP version
Prepare release
inets: Gracefully handle bad headers
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* sverker/system-profile-bug/OTP-15085:
erts: Fix bug in system_profile
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* sverker/enif_binary_to_term-bug/OTP-15080:
erts: Fix bug in enif_binary_to_term for immediates
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do not call abort_signal_task() with invalid data
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* sverker/pooled-age-order:
erts: Let allocator pooled_tree also use Age Order
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* sverker/erlang-memory-fix:
erts: Purge unused allocation types
erts: Fix erlang:memory for 'processes' and 'processes_used'
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* sverker/ets-count/OTP-14987:
erts,stdlib: Improve docs about obsolete ets_limit
erts: Reduce test log noise from ets_SUITE
erts: Increase scalability of ets name lookup
erts: Rename one of delete_trap to select_delete_trap
erts: Refactor usage of am_atom_put to ERTS_MAKE_AM
erts: Add system_info(ets_count)
erts: Fix narrow race between ets:new and ets:delete
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by expanding the default size of the hash table
and increase number of locks.
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and let compiler determine string lengths.
These were actually wrong in erl_db.c:
count_trap\0
replace_tra
select_tra
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* hasse/dialyzer/improve_contract_warnings/OTP-14982:
erts: Improve contracts of zlib
kernel: Improve contracts
erts: Improve a contract
stdlib: Improve a contract
compiler: Improve a contract
dialyzer: Refine the test for overspecified functions
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Fix typos in erlang.xml
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* lukas/erts/fix-scheduler-data-sched-out-bug/OTP-13123:
erts: Make sure scheduler_data is set
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This reverts commit fd8e49b5bddceaae803670121b603b5eee8c5c08.
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If scheduler_data is not set correctly on normal schedulers
the code in erts_schedule_time_break and possibly others
will trigger asserts.
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* siri/logger-fix:
Update documentation of logger and error_logger
Change type name logger:log() to logger:log_event()
Update preloaded
Update primary bootstrap
Rename module logger_simple to logger_simple_h
Change env var logger_log_progress to logger_progress_reports
Remove HandlerId from handler callback functions and add it to Config
Change handler id for sasl handler from sasl_h to sasl
Change Compare parameter to logger_filters:domain/2
Update Logger documentation
Rename reset_module_level to unset_module_level
Allow chars_limit to limit strings
Add logger:update_formatter_config/2,3
Set legacy_header=true for kernel's default handler only
Improve documentation of logger and error_logger
Use system_time instead of monotonic_time as timestamp in logger
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AC_SUBST(FPE) was accidentally deleted in 13bcae12947603.
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to include links and monitors which were lost at
4bc282d812cc2c49aa3e2d073e96c720f16aa270
where these fix_alloc types changed names.
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if configured for the allocator. This was not implemented
and pooled_tree always used address order first fit.
The "problem" was as a carrier can be part of both the pooled tree
(of its owner) and the allocation tree (of a foreign instance)
at the same time. Solved by duplicating 'birth_time' in both
AOFF_RBTree_t nodes for each carrier.
Blocks still cannot use age order and does not pay
any memory cost for birth_time.
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* lukas/erts/cpu_time_thread/OTP-15090:
erts: Make cpu_timestamp use per thread on Linux
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of same named table.
If other process does ets:delete
before ets:new has completely finished and done save_owned_table
then ets:delete might do delete_owned_table and deref wild pointers
in tb->common.owned.
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* sverker/ets-delete_all_objects-trap/OTP-15078:
erts: Rename untrapping db_free_*empty*_table
erts: Make ets:delete_all_objects yield on fixed table
erts: Optimize ets delete all in fixed table
erts: Refactor ets select iteration code
erts: Cleanup ets code
erts: Optimize ets hash object deallocactions
erts: Refactor pseudo deleted ets objects
erts: Make atomic ets:delete_all_objects yield
erts: Fix reduction bump for ets:delete/1
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* sverker/system-profile-bug/OTP-15085:
erts: Fix bug in system_profile
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seen to cause redundant {profile,_,active,_,_} messages
when process is terminating.
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* rickard/delete_process_schedule/OTP-15081:
Do not hold runq lock while deleting a process
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Fix bug in enif_binary_to_term for immediates
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epmd: allow alternative to dns resolving for nodename
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This makes it possible to create a custom integration with a
key-value store for example. The key would then point to the
actual address. You would have to write your own epmd module
to make use of that feature.
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‘res’ may be used uninitialized in this function
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* richcarl/eliminate_lib_module/PR-1786/OTP-15072:
Fix minor issues
Eliminate call to ct:get_progname() in ts_erl_config
Use \n escape instead of integer 10
Move error formatting to erl_error.erl and delete lib.erl
Move extended parse functions in lib.erl to erl_eval.erl
Move lib:eval_str/1 into mod_esi.erl
Remove lib:progname/0
Eliminate call to lib:progname/1 in slave.erl
Add ct:get_progname/0
Remove lib:error_message/2
Remove lib:flush_receive/0
Remove lib:send/2 and lib:sendw/2
Move lib:nonl/1 into yecc.erl
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Symptom: Heap corruption
Expanded test case to provoke this bug
and test some more term types.
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