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2017-02-20erts: Avoid revival of dying resource by dec_termSverker Eriksson
2017-02-20Merge branch 'master' into sverker/enif_selectSverker Eriksson
Conflicts: erts/emulator/beam/erl_binary.h erts/emulator/beam/erl_monitors.c erts/emulator/beam/erl_nif.c erts/emulator/beam/global.h erts/emulator/test/nif_SUITE_data/nif_SUITE.c
2017-02-09erts: Add enif_monitor_process and enif_demonitor_processSverker Eriksson
2017-02-06Adjust the only usage of exposed magic binariesRickard Green
2017-02-06Implement magic referencesRickard Green
Magic references are *intentionally* indistinguishable from ordinary references for the Erlang software. Magic references do not change the language, and are intended as a pure runtime internal optimization. An ordinary reference is typically used as a key in some table. A magic reference has a direct pointer to a reference counted magic binary. This makes it possible to implement various things without having to do lookups in a table, but instead access the data directly. Besides very fast lookups this can also improve scalability by removing a potentially contended table. A couple of examples of planned future usage of magic references are ETS table identifiers, and BIF timer identifiers. Besides future optimizations using magic references it should also be possible to replace the exposed magic binary cludge with magic references. That is, magic binaries that are exposed as empty binaries to the Erlang software.
2017-02-06Merge branch 'maint'Rickard Green
* maint: Atomic reference count of binaries also in non-SMP Conflicts: erts/emulator/beam/erl_fun.c
2017-02-06Atomic reference count of binaries also in non-SMPRickard Green
NIF resources was not handled in a thread-safe manner in the runtime system without SMP support. As a consequence of this fix, the following driver functions are now thread-safe also in the runtime system without SMP support: - driver_free_binary() - driver_realloc_binary() - driver_binary_get_refc() - driver_binary_inc_refc() - driver_binary_dec_refc()
2017-02-03erts: Rename ErlNifResource as ErtsResourceSverker Eriksson
as it's not part of the API
2017-02-03erts: Add deallocation veto for magic destructorsSverker Eriksson
A magic destructor can return 0 and thereby take control and prolong the lifetime of a magic binary.
2017-02-03Merge branch 'master' into sverker/enif_selectSverker Eriksson
2017-02-03Merge branch 'egil/20/erts/signal-service/OTP-14186'Björn-Egil Dahlberg
* egil/20/erts/signal-service/OTP-14186: kernel: Document signal server erts: Use os module instead of erts_internal for set_signal/2 erts: Do not handle SIGILL erts: Fix thread suspend in crashdump erts: Do not enable SIGINT erts: Use generic signal handler erts: Add OS signal tests erts: Handle SIGUSR1 via signal service instead erts: Handle SIGTERM via signal service instead kernel: Add gen_event signal server and default handler erts: Add SIGHUP signal handler erts: Remove whitespace errors Conflicts: erts/emulator/beam/bif.tab
2017-02-02erts: Use generic signal handlerBjörn-Egil Dahlberg
2017-02-01Merge branch 'josevalim/atu8-chunk/PR-1078/OTP-14178'Björn Gustavsson
* josevalim/atu8-chunk/PR-1078/OTP-14178: Add new AtU8 beam chunk
2017-01-30Add new AtU8 beam chunkJosé Valim
The new chunk stores atoms encoded in UTF-8. beam_lib has also been modified to handle the new 'utf8_atoms' attribute while the 'atoms' attribute may be a missing chunk from now on. The binary_to_atom/2 BIF can now encode any utf8 binary with up to 255 characters. The list_to_atom/1 BIF can now accept codepoints higher than 255 with up to 255 characters (thanks to Björn Gustavsson).
2017-01-23Merge branch 'sverker/ASSERT_IN_ENV'Sverker Eriksson
* sverker/ASSERT_IN_ENV: erts: Add macro ERTS_PROC_LOCKS_HIGHER_THAN erts: Cleanup and extra assertions in nif_SUITE.c erts: Cleanup enif_make_reverse_list erts: Add assertions for correct ErlNifEnv erts: Make erts_dbg_within_proc available # Conflicts: # erts/emulator/beam/erl_gc.h
2017-01-12erts: Add assertions for correct ErlNifEnvSverker Eriksson
when constructing container terms.
2017-01-12Support for dirty BIFsRickard Green
2016-12-19Add stop arguments: fd and is_direct_callSverker Eriksson
2016-11-30erts: Add enif_select & enif_open_resource_type_xSverker Eriksson
2016-11-22Merge branch 'maint'Sverker Eriksson
2016-11-22erts: Add env variable ERL_CRASH_DUMP_BYTESSverker Eriksson
to limit crash dump size
2016-11-17erts: Tweak PSTACK to avoid warningSverker Eriksson
warning: array subscript is below array bounds and ok, it's technically undef behavior to set pointer before first array element.
2016-11-17erts: Refactor crash dumping with cbprintfSverker Eriksson
Instead of passing around a file descriptor use a function pointer to facilitate more advanced backend write logic such as size limitation or compression.
2016-10-14Merge branch 'master' into sverker/hipe-code-loadnpurgeSverker Eriksson
Conflicts: erts/emulator/beam/beam_bif_load.c erts/emulator/beam/beam_load.c and added macro DBG_TRACE_MFA_P in beam_load.h
2016-10-14erts: Fix early hipe patch loadingSverker Eriksson
by introducing hipe_bifs:commit_patch_load/1 that creates the HipeModule.
2016-10-12erts: Refactor find_function_from_pc to return MFALukas Larsson
2016-10-12erts: Refactor out func_info into structLukas Larsson
This commit adds two new structs to be used to represent erlang code in erts. ErtsCodeInfo is used to describe the i_func_info header that is part of all Export entries and the prelude of each function. This replaces all the BeamInstr * that were previously used to point to these locations. After this change the code should never use BeamInstr * with offsets to figure out different parts of the func_info header. ErtsCodeMFA is a struct that is used to descripe a MFA in code. It is used within ErtsCodeInfo and also in Process->current. All function that previously took Eterm * or BeamInstr * to identify a MFA now use the ErtsCodeMFA or ErtsCodeInfo where appropriate. The code has been tested to work when adding a new field to the ErtsCodeInfo struct, but some updates are needed in ops.tab to make it work.
2016-09-05Merge branch 'bjorn/erts/help-clang'Björn Gustavsson
* bjorn/erts/help-clang: Slightly reduce code size of process_main()
2016-09-01Merge branch 'rickard/remove-old-purge-strategy/OTP-13844'Rickard Green
* rickard/remove-old-purge-strategy/OTP-13844: Avoid selective receive in code-purger process Remove old purge strategy Conflicts: erts/emulator/beam/beam_bif_load.c erts/emulator/beam/global.h
2016-09-01Merge branch 'maint'Rickard Green
* maint: Fix reclaim of literal areas Conflicts: erts/emulator/beam/global.h
2016-09-01Merge branch 'rickard/new-purge-strategy/OTP-13833' into maintRickard Green
* rickard/new-purge-strategy/OTP-13833: Fix reclaim of literal areas Conflicts: erts/emulator/beam/beam_bif_load.c
2016-09-01Slightly reduce code size of process_main()Björn Gustavsson
clang will generate smaller code if we avoid reassigning the reg and freg arrays. That can be easily arranged by passing them as arguments to process_main().
2016-09-01Fix reclaim of literal areasRickard Green
2016-08-31Remove old purge strategyRickard Green
2016-08-29Merge branch 'maint'Rickard Green
* maint: Fix tracing of processes executing dirty Perform check_process_code while process is executing dirty Fix purge of code Reclaim literal area after purge has completed Separate literal area from code Conflicts: erts/emulator/beam/global.h
2016-08-29Merge branch 'rickard/ds-trace/OTP-13822' into maintRickard Green
* rickard/ds-trace/OTP-13822: Fix tracing of processes executing dirty
2016-08-29Merge branch 'rickard/ds-purge-module/OTP-13808' into maintRickard Green
* rickard/ds-purge-module/OTP-13808: Perform check_process_code while process is executing dirty Conflicts: erts/doc/src/erl_nif.xml
2016-08-29Merge branch 'rickard/fun-purge-bug/OTP-13809' and ↵Rickard Green
'rickard/new-purge-strategy/OTP-13833' into maint * rickard/fun-purge-bug/OTP-13809: Fix purge of code Reclaim literal area after purge has completed Separate literal area from code Conflicts: erts/doc/src/erlang.xml erts/emulator/beam/beam_bif_load.c erts/emulator/beam/erl_init.c erts/preloaded/ebin/init.beam
2016-08-29Fix tracing of processes executing dirtyRickard Green
2016-08-29Perform check_process_code while process is executing dirtyRickard Green
2016-08-26Reclaim literal area after purge has completedRickard Green
2016-08-01erts: Refactor literal purge area argumentsBjörn-Egil Dahlberg
2016-08-01erts: Remove the need for copying of literalsBjörn-Egil Dahlberg
* Literals are not copied between processes for messages or spawn Increases performance of message sent and processes spawned when literals are involved in messages or arguments.
2016-07-14Merge branch 'maint'Lukas Larsson
Conflicts: erts/emulator/Makefile.in
2016-07-14hipe: Remove performance profiling codeLukas Larsson
This type of statistics is now available through the microstate accounting API.
2016-06-22Simplify creation of new GC BIFsBjörn Gustavsson
Add the BIF type "gcbif" in bif.tab for defining GC BIFs. That will eliminate some of the hand-written administrative code for handling GC BIFs, saving the developer's time.
2016-05-31Move dirty reduction count to erts_dirty_process_main()Rickard Green
2016-05-31Add dirty_process_main functionSteve Vinoski
Dirty schedulers only execute NIFs, so having them execute the full process_main function isn't necessary. Add dirty_process_main for dirty schedulers to execute instead. Add erts_pre_dirty_nif(), called when preparing to execute a dirty nif. Add more dirty NIF tests to verify that activities requiring the process main lock can succeed when the process is executing a dirty NIF.
2016-05-17Merge branch 'mikpe/otp-19-erts-integer-truncation-bugs/PR-1045/OTP-13606'Lukas Larsson
* mikpe/otp-19-erts-integer-truncation-bugs/PR-1045/OTP-13606: erl_unicode.c: fix integer truncation problems do not limit heap fragments to 4 giga-words erts_new_mso_binary(): do not truncate len Conflicts: erts/emulator/beam/erl_nif.c
2016-05-11Add better support for communication with a process executing dirty NIFRickard Green
- Termination of a process... - Modify trace flags of process... - Process info on process... - Register/unregister of name on process... - Set group leader on process... ... while it is executing a dirty NIF.
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