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2016-06-02Merge branch 'saleyn/uds/PR-612/OTP-13572'Raimo Niskanen
* saleyn/uds/PR-612/OTP-13572: AF_UNIX is more portable
2016-06-02AF_UNIX is more portableRaimo Niskanen
Fix dialyzer warning for improper list in prim_inet by not using an improper list.
2016-06-02Merge branch 'saleyn/uds/PR-612/OTP-13572'Raimo Niskanen
* saleyn/uds/PR-612/OTP-13572: Rewrite inet* for address family 'local' Rewrite inet_drv for AF_LOCAL Assign externally open fd to gen_tcp (UDS support) Conflicts: erts/preloaded/ebin/prim_inet.beam lib/kernel/doc/src/gen_tcp.xml lib/kernel/doc/src/gen_udp.xml lib/kernel/src/inet6_sctp.erl lib/kernel/test/inet_SUITE.erl
2016-06-01Rewrite inet_drv for AF_LOCALRaimo Niskanen
2016-05-31Merge branch 'rickard/rt-dep-erts-kernel-stdlib-sasl'Rickard Green
* rickard/rt-dep-erts-kernel-stdlib-sasl: Bumped runtime dependencies between erts, kernel, stdlib, sasl
2016-05-30Reintroduce erlang:halt/0/1 in erl_bif_types.erlSverker Eriksson
Removed in f9cb80861f169743 when changed impl from C to Erlang. But seems they are needed to keep dialyzer tests happy. Also improved bif_SUITE:shadow_comments to include all exported in module erlang, not just the "snifs". ...which detected that apply/2 was missing Shadowed comment as well.
2016-05-27Update preloadedSverker Eriksson
2016-05-27Merge branch 'richcarl/erts/fix-init-stop/PR-911/OTP-13630/OTP-13631'Sverker Eriksson
2016-05-27Bumped runtime dependencies between erts, kernel, stdlib, saslRickard Green
2016-05-27Merge branch 'rickard/rm-mqd-mixed/OTP-13366'Rickard Green
* rickard/rm-mqd-mixed/OTP-13366: Remove the 'message_queue_data' option 'mixed'
2016-05-25Remove the 'message_queue_data' option 'mixed'Rickard Green
2016-05-25erts: Update preloadedSverker Eriksson
2016-05-25erts: Remove unnecessary halt string truncationSverker Eriksson
as erlang:halt does it for us now
2016-05-25erts: Implement halt/0 and halt/1 in ErlangSverker Eriksson
just to make things simpler.
2016-05-24erts: Move tracer SecondTraceTerm to Opts mapLukas Larsson
The extra trace data has been moved to the opts map in order for the tracer to be able to distinguish inbetween extra trace data 'undefined' and no extra trace data. In the same commit all opts associations have been changed so that if the tracer should not use them, the key is left unassicated instead of being sent to undefined. This should be give a small performance gain and also makes the API easier to work with.
2016-05-20Check exit status in init:stop/1 and simplify documentationRichard Carlsson
2016-05-16Tolerate bad directories in the code pathBjörn Gustavsson
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
2016-05-11Merge branch 'lukas/trace-fix'Rickard Green
* lukas/trace-fix: erts: Only allow remove from trace_status callback
2016-05-11erts: Only allow remove from trace_status callbackLukas Larsson
Make it so that it is only possible to remove a tracer via returning remove from an erl_tracer. This limition is put in place in order to avoid a lot of lock checking and taking in various places, especially in regards to trace events happening on dirty schedulers.
2016-05-10Update preloaded modulesLukas Larsson
2016-05-10erts: Implement max_heap_size process flagLukas Larsson
The max_heap_size process flag can be used to limit the growth of a process heap by killing it before it becomes too large to handle. It is possible to set the maximum using the `erl +hmax` option, `system_flag(max_heap_size, ...)`, `spawn_opt(Fun, [{max_heap_size, ...}])` and `process_flag(max_heap_size, ...)`. It is possible to configure the behaviour of the process when the maximum heap size is reached. The process may be sent an untrappable exit signal with reason kill and/or send an error_logger message with details on the process state. A new trace event called gc_max_heap_size is also triggered for the garbage_collection trace flag when the heap grows larger than the configured size. If kill and error_logger are disabled, it is still possible to see that the maximum has been reached by doing garbage collection tracing on the process. The heap size is defined as the sum of the heap memory that the process is currently using. This includes all generational heaps, the stack, any messages that are considered to be part of the heap and any extra memory the garbage collector may need during collection. In the current implementation this means that when a process is set using on_heap message queue data mode, the messages that are in the internal message queue are counted towards this value. For off_heap, only matched messages count towards the size of the heap. For mixed, it depends on race conditions within the VM whether a message is part of the heap or not. Below is an example run of the new behaviour: Eshell V8.0 (abort with ^G) 1> f(P),P = spawn_opt(fun() -> receive ok -> ok end end, [{max_heap_size, 512}]). <0.60.0> 2> erlang:trace(P, true, [garbage_collection, procs]). 1 3> [P ! lists:duplicate(M,M) || M <- lists:seq(1,15)],ok. ok 4> =ERROR REPORT==== 26-Apr-2016::16:25:10 === Process: <0.60.0> Context: maximum heap size reached Max heap size: 512 Total heap size: 723 Kill: true Error Logger: true GC Info: [{old_heap_block_size,0}, {heap_block_size,609}, {mbuf_size,145}, {recent_size,0}, {stack_size,9}, {old_heap_size,0}, {heap_size,211}, {bin_vheap_size,0}, {bin_vheap_block_size,46422}, {bin_old_vheap_size,0}, {bin_old_vheap_block_size,46422}] flush(). Shell got {trace,<0.60.0>,gc_start, [{old_heap_block_size,0}, {heap_block_size,233}, {mbuf_size,145}, {recent_size,0}, {stack_size,9}, {old_heap_size,0}, {heap_size,211}, {bin_vheap_size,0}, {bin_vheap_block_size,46422}, {bin_old_vheap_size,0}, {bin_old_vheap_block_size,46422}]} Shell got {trace,<0.60.0>,gc_max_heap_size, [{old_heap_block_size,0}, {heap_block_size,609}, {mbuf_size,145}, {recent_size,0}, {stack_size,9}, {old_heap_size,0}, {heap_size,211}, {bin_vheap_size,0}, {bin_vheap_block_size,46422}, {bin_old_vheap_size,0}, {bin_old_vheap_block_size,46422}]} Shell got {trace,<0.60.0>,exit,killed}
2016-05-09Merge branch 'sverker/trace-send-receive-matchspec/OTP-13507'Sverker Eriksson
2016-05-04erts: Add send and 'receive' to trace_info/2Sverker Eriksson
to obtain match specs
2016-05-04erts: Add docs for trace_pattern with 'send' and 'receive'Sverker Eriksson
2016-05-03Update preloaded modulesBjörn-Egil Dahlberg
2016-04-29Merge branch 'egil/erts/tracing-support-lttng/OTP-13532'Björn-Egil Dahlberg
* egil/erts/tracing-support-lttng/OTP-13532: (28 commits) runtime_tools: User's guide to LTTng and dyntrace runtime_tools: Fix Dtrace build erts: Fix gc messages in tracer_SUITE erts: Fix gc messages in sensitive_SUITE erts: Fix gc messages in trace_port_SUITE tools: Update fprof tests tools: Update fprof with new gc traces runtime_tools: Update dyntrace_lttng_SUITE tests runtime_tools: Add 'return_to' for call tracing erts: Fix return_to trace callback erts: Update erl_tracer documentation erts: Fix erl_tracer documentation typos Update preloaded erl_tracer.beam erts: Update erl_tracer type specs runtime_tools: Add lttng dyntrace tests runtime_tools: Extend 'trace' and 'enabled' tracer callbacks erts: Extend 'enabled' and 'trace' tracer callbacks runtime_tools: Extend 'enabled' tracer callbacks erts: Extend 'enabled' tracer callbacks runtime_tools: Update lttng garbage collection trace ...
2016-04-29Update preloaded erl_tracer.beamBjörn-Egil Dahlberg
2016-04-29erts: Update erl_tracer type specsBjörn-Egil Dahlberg
2016-04-28Enhance map specs in erts, stdlib, runtime_toolsMagnus Lång
Using the new type syntax, we can specify which keys are required, and which are optional in a way Dialyzer could use.
2016-04-26Update preloaded init.beamBjörn-Egil Dahlberg
2016-04-26erts: Add profiling of startupBjörn-Egil Dahlberg
Usage: erl -profile_boot ...
2016-04-15Update preloaded modulesLukas Larsson
2016-04-15erts: Document erlang:match_spec_test/3Lukas Larsson
OTP-13501
2016-04-15erts: Add 'spawned' trace event to 'procs' trace flagLukas Larsson
OTP-13497 This trace event is triggered when a process is created from the process that is created.
2016-04-15erts: Extend process and port tracingLukas Larsson
This commit completes the tracing for processes so that all messages sent by a process (via nifs or otherwise) will be traced. The commit also adds tracing of all types of events from ports. When enabling tracing using erlang:trace, the 'all' flag now also enables tracing on all ports. OTP-13496
2016-04-15erts: Implement tracer modulesLukas Larsson
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
2016-04-13Merge branch 'henrik/update-copyrightyear'Henrik Nord
* henrik/update-copyrightyear: update copyright-year
2016-04-07Update preloaded erlang.beamBjörn-Egil Dahlberg
2016-04-07erts: Fix process_info/2 result specBjörn-Egil Dahlberg
2016-03-17Update preloaded modulesBjörn Gustavsson
2016-03-17init: Load modules in parallel using the new loader BIFsBjörn Gustavsson
Use erlang:prepare_loading/1 and erlang:finish_loading/1 to load modules in parallel to potentially decrease start-up times.
2016-03-16Update preloaded modulesBjörn Gustavsson
2016-03-16init: Correct spec for fetch_loaded/1Björn Gustavsson
fetch_loaded/1 returns a list of tuples, not a list of atoms.
2016-03-15update copyright-yearHenrik Nord
2016-03-10Improved scheduler suspend functionalityRickard Green
- The calling process is now suspended while synchronizing scheduler suspends via erlang:system_flag(schedulers_online, _) and erlang:system_flag(multi_scheduling, _), instead of blocking the scheduler thread in the BIF call waiting for the operation to synchronize. Besides releasing the scheduler for other work (or immediate suspend) it also makes it possible to abort the operation by killing the process. - erlang:system_flag(schedulers_online, _) now only wait for normal schedulers to complete before it returns. This since it may take a very long time before all dirty schedulers suspends. - erlang:system_flag(multi_scheduling, block_normal|unblock_normal) which only operate on normal schedulers has been introduced. This since there are use cases where suspend of dirty schedulers are not of interest (hipe loader). - erlang:system_flag(multi_scheduling, block) still blocks all dirty schedulers as well as all normal schedulers except one since it is hard to redefine what multi scheduling block means. - The three operations: - changing amount of schedulers online - blocking/unblocking normal multi scheduling - blocking/unblocking full multi scheduling can now be done in parallel. This is important since otherwise a full multi scheduling block would potentially delay the other operations for a very long time.
2016-02-26Merge branch 'bjorn/multiple-load/OTP-13111'Björn Gustavsson
* bjorn/multiple-load/OTP-13111: code: Add functions that can load multiple modules Refactor post_beam_load handling Simplify and robustify code_server:all_loaded/1 Update preloaded modules Add erl_prim_loader:get_modules/3 Add has_prepared_code_on_load/1 BIF Allow erlang:finish_loading/1 to load more than one module beam_load.c: Add a function to check for an on_load function
2016-02-25Merge branch 'maint'Björn-Egil Dahlberg
Conflicts: erts/emulator/beam/erl_alloc.types erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_process.c erts/preloaded/ebin/erts_internal.beam
2016-02-25Merge branch 'egil/heart-callback/OTP-13250' into maintBjörn-Egil Dahlberg
2016-02-25Update preloaded modulesBjörn Gustavsson
2016-02-25Add erl_prim_loader:get_modules/3Björn Gustavsson
When we are going to implement functions that can load many modules at once, we don't the erl_prim_loader server to become a bottleneck. Therefore, we need erl_prim_loader:get_modules/3 that can read many BEAM files in parallel. Note that we will not bother making reading from archive files or using the inet loader efficient. That can be done later if it turns out to be important.