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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.
2017-02-06Implement erts_refc_inc_unless()Rickard Green
2017-02-06Merge branch 'maint'Rickard Green
* maint: Atomic reference count of binaries also in non-SMP Conflicts: erts/emulator/beam/erl_fun.c
2017-02-06Merge branch 'rickard/binary-refc' into maintRickard Green
OTP-14202 * rickard/binary-refc: Atomic reference count of binaries also in non-SMP Conflicts: erts/emulator/beam/beam_bp.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()
2017-02-06Merge branch 'maint'Rickard Green
* maint: Dirty schedulers should not touch scheduler data pointed to by process struct
2017-02-06Merge branch 'rickard/ds-fix' into maintRickard Green
OTP-14122 * rickard/ds-fix: Dirty schedulers should not touch scheduler data pointed to by process struct Conflicts: erts/emulator/beam/erl_process.c
2017-02-06Merge branch 'maint'Rickard Green
* maint: Use a hole-marker that cannot be mistaken for a valid term on the heap
2017-02-06Merge branch 'rickard/hole-marker' into maintRickard Green
* rickard/hole-marker: Use a hole-marker that cannot be mistaken for a valid term on the heap
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
2017-02-03Use a hole-marker that cannot be mistaken for a valid term on the heapRickard Green
2017-02-03Merge branch 'maint'Björn-Egil Dahlberg
2017-02-03Fix merge commitBjörn-Egil Dahlberg
This fixes commit f0867aa2ccbbf5677e0577bba08f8b7bc53ec0ed
2017-02-03erge branch 'maint'Hans Nilsson
Conflicts: OTP_VERSION
2017-02-03Merge branch 'maint-18' into maintHans Nilsson
Conflicts: OTP_VERSION erts/doc/src/notes.xml erts/emulator/sys/unix/erl_unix_sys.h erts/emulator/sys/unix/sys.c erts/vsn.mk lib/crypto/c_src/crypto.c lib/crypto/doc/src/notes.xml lib/crypto/vsn.mk lib/inets/doc/src/notes.xml lib/inets/vsn.mk lib/ssh/doc/src/notes.xml lib/ssh/src/ssh.app.src lib/ssh/src/ssh_connection_handler.erl lib/ssh/vsn.mk otp_versions.table
2017-02-02Dirty schedulers should not touch scheduler data pointed to by process structRickard Green
2017-02-02erts: Use os module instead of erts_internal for set_signal/2Björn-Egil Dahlberg
* Add specs * Change return signature to 'ok' instead of 'true'
2017-02-02erts: Do not handle SIGILLBjörn-Egil Dahlberg
* Remove SIGILL from signal whitelist
2017-02-02erts: Fix thread suspend in crashdumpBjörn-Egil Dahlberg
* move signal handler setup
2017-02-02erts: Do not enable SIGINTBjörn-Egil Dahlberg
2017-02-02erts: Use generic signal handlerBjörn-Egil Dahlberg
2017-02-02erts: Add OS signal testsBjörn-Egil Dahlberg
2017-02-01Merge branch 'sverker/bin2term-zlib-bug/ERL-340/OTP-14159' into maint-18Erlang/OTP
* sverker/bin2term-zlib-bug/ERL-340/OTP-14159: erts: Fix binary_to_term for compressed and zlib >= v1.2.9
2017-02-01Merge branch 'egil/erts/fix_scheduler_suspend/ERL-94/PR-978/OTP-13425' into ↵Erlang/OTP
maint-18 * egil/erts/fix_scheduler_suspend/ERL-94/PR-978/OTP-13425: erts: Fix install of suspend handler
2017-02-01Merge branch 'rickard/thr-prgr-unmanaged-delay-bug/OTP-13869' into maint-18Erlang/OTP
* rickard/thr-prgr-unmanaged-delay-bug/OTP-13869: Fix erts_thr_progress_unmanaged_delay()
2017-02-01Merge branch 'rickard/drv-send-term-thr-bug/OTP-13866' into maint-18Erlang/OTP
* rickard/drv-send-term-thr-bug/OTP-13866: Fix thread calls to erl_drv_send_term()/erl_drv_output_term()
2017-02-01Merge branch 'maint'Sverker Eriksson
2017-02-01Merge branch 'sverker/bin2term-zlib-bug/ERL-340/OTP-14159' into maintSverker Eriksson
* sverker/bin2term-zlib-bug/ERL-340/OTP-14159: erts: Fix binary_to_term for compressed and zlib >= v1.2.9
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).
2017-01-26Merge branch 'egil/erts/remove-broken-hash/OTP-13827'Björn-Egil Dahlberg
* egil/erts/remove-broken-hash/OTP-13827: Update test cases for erlang:hash/2 removal mnesia: Remove mnesia_frag_old_hash hash module stdlib: Produce correct warning for erlang:hash/2 erts: Remove erlang:hash/2 from documentation erts: Remove broken hash from Erlang
2017-01-25Merge branch 'rickard/ds-20-fix'Rickard Green
* rickard/ds-20-fix: Fix unused warning Change exception for enif_schedule_nif() with dirty flags Remove double check of NifExport when checking process code
2017-01-25Update test cases for erlang:hash/2 removalBjörn-Egil Dahlberg
2017-01-25erts: Remove broken hash from ErlangBjörn-Egil Dahlberg
erlang:hash/2 has been deprecated for a while, time to remove it.
2017-01-25Merge branch 'maint'Björn-Egil Dahlberg
2017-01-25Merge branch 'egil/erts/fix-crashdump-suspend/OTP-14164' into maintBjörn-Egil Dahlberg
* egil/erts/fix-crashdump-suspend/OTP-14164: erts: Fix thread suspend in crashdump
2017-01-23Merge branch 'sverker/zlib-inflateGetDictionary-mcintosh'Sverker Eriksson
* sverker/zlib-inflateGetDictionary-mcintosh: erts: Fix zlib crash on mac for inflateGetDictionary
2017-01-23Merge branch 'maint'Sverker Eriksson
2017-01-23Merge branch 'sverker/cuddle-port_trace_SUITE' into maintSverker Eriksson
* sverker/cuddle-port_trace_SUITE: erts: Fix port_trace_SUITE to join threads
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
2017-01-23erts: Fix binary_to_term for compressed and zlib >= v1.2.9Sverker Eriksson
Problem: z_stream was incorrectly copied with memcpy which just happened to work with zlib < v1.2.9. Solution: Avoid copying z_stream.
2017-01-20erts: Fix thread suspend in crashdumpBjörn-Egil Dahlberg
* move signal handler setup
2017-01-19Fix unused warningRickard Green
2017-01-19Introduce erts_proc_lookup_inc_refc()Rickard Green
2017-01-19erts: Handle SIGUSR1 via signal service insteadBjörn-Egil Dahlberg
2017-01-19erts: Handle SIGTERM via signal service insteadBjörn-Egil Dahlberg
2017-01-18Change exception for enif_schedule_nif() with dirty flagsRickard Green
2017-01-18Remove double check of NifExport when checking process codeRickard Green
2017-01-17Merge branch 'maint'Sverker Eriksson
2017-01-17Merge branch 'sverker/trace_gc-bug/OTP-14154' into maintSverker Eriksson
* sverker/trace_gc-bug: erts: Fix GC tracing to use temp heap erts: Assert sufficient space need after GC
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