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Add the possibility to use modules as trace data receivers. The functions
in the module have to be nifs as otherwise complex trace probes will be
very hard to handle (complex means trace probes for ports for example).
This commit changes the way that the ptab->tracer field works from always
being an immediate, to now be NIL if no tracer is present or else be
the tuple {TracerModule, TracerState} where TracerModule is an atom that
is later used to lookup the appropriate tracer callbacks to call and
TracerState is just passed to the tracer callback. The default process and
port tracers have been rewritten to use the new API.
This commit also changes the order which trace messages are delivered to the
potential tracer process. Any enif_send done in a tracer module may be delayed
indefinitely because of lock order issues. If a message is delayed any other
trace message send from that process is also delayed so that order is preserved
for each traced entity. This means that for some trace events (i.e. send/receive)
the events may come in an unintuitive order (receive before send) to the
trace receiver. Timestamps are taken when the trace message is generated so
trace messages from differented processes may arrive with the timestamp
out of order.
Both the erlang:trace and seq_trace:set_system_tracer accept the new tracer
module tracers and also the backwards compatible arguments.
OTP-10267
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These are convinience functions for calling nifs from erts
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* lukas/erts/enif_send_null_env/OTP-13495:
erts: Add enif_send with NULL as msg env
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* egil/erts/fix-erlang-system_profile/ERL-126/OTP-13494:
erts: Enhance system_profile tests
erts: Don't use function location when process is terminating
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* paulgray/inet_db_fix/PR-949/OTP-13470:
Fix start timestamp instead of time check
Allow to refresh resolver settings on startup
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* binarin/erts/fix-epmd-systemd-notifications/PR-999/OTP-13493:
Don't send unasked for systemd notifications
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* egil/fix-dyntrace-test:
runtime_tools: Skip dyntrace test if LTTng is enabled
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* egil/erts/opt-list_append/OTP-13487:
erts: Optimize '++' operator
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* egil/tools/modernize-tests:
tools: Don't divide by zero in tests
Fix instruments_SUITE sumblock check
Eliminate use of doc and suite clauses
Replace ?t with test_server
Use test_server:is_debug/0 instead of custom check
Replace use of test_server:format/2 with io:format/2
Eliminate use of ?config() macro
Eliminate use of test_server:fail/0,1
Eliminate erlang:now/0
Modernize use of timetraps
Remove ?line macros
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It's not just ok to throw badarg, it MUST throw badarg.
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* siri/otp-19-vsns:
Update version of common_test for OTP-19
Update versions
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* siri/ct/mods-in-app-file/OTP-13475:
Don't add explicit path to ct_release_test
Add missing modules to common_test.app.src
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* henrik/update-copyrightyear:
update copyright-year
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* msantos/erts/cli-abort-on-alloc-fail/PR-948/OTP-13486:
erts/common: check for OOM on Windows
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* egil/erts-lib/modernize-tests:
Replace test_server:os_type/0 with os:type/0
Eliminate use of doc and suite clauses
Replace use of test_server:format/2 with io:format/2
Eliminate use of test_server:fail/0,1
Eliminate use of ?config() macro
Modernize use of timetraps
Remove ?line macros
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* bjorn/raise:
Remove unreachable code after 'raise' instructions
Simplify the raise instruction to reduce code size
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This also optimizes the BIF lists:append/2
Use one pass to check for properness and copying LHS list.
If LHS turns out not being a proper list, bail and reset htop.
If we run out of heap, allocate a heap-fragment and calculate
the remaining length as normal, thus checking for properness,
and then continue copying.
Measurements shows this being ~50% faster.
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* egil/erts/fix-process_info-spec/ERL-123/OTP-13485:
Update preloaded erlang.beam
erts: Fix process_info/2 result spec
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* egil/erts/cuddle-tests:
Additional logging for alloc_SUITE
Replace test_server:os_type/0 with os:type/0
Let low_prio test run a bit longer
Increase timetrap for atom_roundtrip_r15b
Remove unnecessary ct boilerplate in suite
Don't divide by zero in test logging
Use ct:fail/1 instead of test_server:fail/1
Relax node_container_SUITE
Increase timetrap timeout for op_SUITE:bsl_bsr/1
Increase timetrap timeout for port_SUITE:huge_env/1
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This module is now in common_test.app, so it will be included in the
release which is upgraded from (and to).
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This is done early so test of ct_release_test shall work.
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Remove the unreachable instructions after a 'raise' instruction
(e.g. a 'jump' or 'deallocate', 'return') to decrease code size.
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The raise/2 instruction is almost always used like this:
raise x(2) x(1)
Therefore, we can translate it to an internal i_raise/0
instruction that uses x(2) x(1) as its implicit operands.
We will also remove the backward compatibility with R10-0. It is
unlikely that anyone still is using BEAM files compiled with the R10-0
compiler, especially since most of those modules cannot be loaded. The
loader will refuse to load any module that uses the old non-GCIng
arithmetic instructions or the non-GCing versions of length/1 or
size/1.
Doing these changes will reduce both the size of the loaded BEAM
code and size of the code in process_main().
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to let future nodes know that we can handle
NEW_PID_EXT, NEW_PORT_EXT and NEWER_REFERENCE_EXT.
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from future nodes.
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Increase max number of messages sent to fill buffers.
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Instead of INTERNAL_CREATION (255), use empty atom for node name
to mean the local node (regardless of node name or creation).
The purpose is to get rid of special value 255, for future expansion
of creation to 32-bit.
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