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2014-11-10Implement support for double word atomics using libatomic_opsRickard Green
2014-11-10Improve usage of libatomic_ops for word size atomicsRickard Green
Use AO_fetch_compare_and_swap*() when present
2014-11-04Prepare releaseErlang/OTP
2014-11-04Merge branch 'sverk/cpool_fetch-dc_list-bug/OTP-12249' into maint-17Erlang/OTP
* sverk/cpool_fetch-dc_list-bug/OTP-12249: erts: Fix bug when delayed deallocated carrier is reused by cpool_fetch
2014-10-30erts: Mend run_erl to set windows size of terminal sent from to_erlSverker Eriksson
Need to include sys/ioctl.h for TIOCSWINSZ to be defined. Seems this was broken when refactoring run_erl for OSE in OTP 17.0.
2014-10-03erts: Fix bug when delayed deallocated carrier is reused by cpool_fetchSverker Eriksson
The delayed dealloc queue destroyes one word but cpool_fetch() is expected to return healthy carriers. So we restore that overwritten word with a little bit of hackish code.
2014-09-15Update release notesErlang/OTP
2014-09-15Update version numbersErlang/OTP
2014-09-12Update preloaded modulesHenrik Nord
2014-09-12Merge branch 'sverk/dirty-sched-api-cleanup' into maintSverker Eriksson
* sverk/dirty-sched-api-cleanup: erts: Remove enif_have_dirty_schedulers() erts: Correct dirty scheduler NIF API for Windows
2014-09-12erts: Remove enif_have_dirty_schedulers()Sverker Eriksson
and add 'dirty_scheduler_support' to ErlNifSysInfo
2014-09-11Update preloadedMarcus Arendt
2014-09-11Merge branch 'lrascao/fix_bug_windows_directory_symlinks' into maintMarcus Arendt
* lrascao/fix_bug_windows_directory_symlinks: fix indentation, add comment describing windows symlink creation assumption fix escript archive symlinked across drives OTP-12155 OTP-12154 OTP-12153
2014-09-10erts: Correct dirty scheduler NIF API for WindowsSverker Eriksson
enif_schedule_nif() put LAST of the unconditional functions to keep the order which is vital for ABI compatibility on Windows. The conditional dirty scheduler stuff moved down at the end of the list to keep them out of the way. We don't want them mess things up then they become unconditional some day.
2014-09-10Merge branch 'lukas/docfixes-17.3/OTP-12152' into maintLukas Larsson
* lukas/docfixes-17.3/OTP-12152: Fix some spelling misstakes
2014-09-05Merge branch 'rickard/memory_consuming_tuple_tests' into maintRickard Green
* rickard/memory_consuming_tuple_tests: Only run upper boundry tuple test with lots of memory
2014-09-05Only run upper boundry tuple test with lots of memoryRickard Green
2014-09-05Merge branch 'vinoski/enif-schedule-nif' into maintRickard Green
OTP-12128 * vinoski/enif-schedule-nif: Fix leak of NIF exports Use separate allocation type for NIF export
2014-09-05Fix leak of NIF exportsRickard Green
2014-09-05Use separate allocation type for NIF exportRickard Green
2014-09-04Merge branch 'sverk/term_to_binary-realloc-size/OTP-12141' into maintSverker Eriksson
* sverk/term_to_binary-realloc-size/OTP-12141: erts: Fix bug in term_to_binary that reallocates binary with wrong size
2014-09-04Merge branch 'sverk/MIN_SMALL-to-integer' into maintSverker Eriksson
* sverk/MIN_SMALL-to-integer: erts: Correct conversion of MIN_SMALL numeral to fixnum OTP-12140
2014-09-04erts: Correct conversion of MIN_SMALL numeral to fixnumSverker Eriksson
list_to_integer and binary_to_integer returned un-normalized bignum for -134217728 on 32-bit and -576460752303423488 on 64-bit. Thanks to Jesper Louis Andersen, Mikael Pettersson and Anthony Ramine for report, initial patch and optimization suggestion.
2014-09-04Merge branch 'sverk/nif-inspect-copy-bug/OTP-9828' into maintSverker Eriksson
* sverk/nif-inspect-copy-bug/OTP-9828: erts: Fix bug with enif_make_copy reallocating writable binary Conflicts: erts/emulator/test/nif_SUITE.erl
2014-09-04Merge branch 'egil/fix-llvm-cc-warnings/OTP-12138' into maintBjörn-Egil Dahlberg
* egil/fix-llvm-cc-warnings/OTP-12138: odbc: Suppress signedness warnings for 'char *' ic: Suppress unused-value warning erts: Fix tentative-definition-incomplete-type erts: Don't redefine '_XOPEN_SOURCE'
2014-09-03erts: Fix bug with enif_make_copy reallocating writable binarySverker Eriksson
that could invalidate a pointer received from an earlier call to enif_inspect_binary. Solution: Emasculate writable binary at enif_inspect_binary. There are room for optimizations here as we now do an unconditional emasculation even though enif_make_copy is not called later in the NIF.
2014-09-03erts: Fix bug in term_to_binary that reallocates binary with wrong sizeSverker Eriksson
2014-08-29Merge branch 'rickard/runnable-trace-ooo-bug/OTP-12105' into maintRickard Green
* rickard/runnable-trace-ooo-bug/OTP-12105: Fix busy_port_SUITE:io_to_busy test-case Ensure "runnable port" trace messages are not sent out of order Ensure "runnable proc" trace messages are not sent out of order
2014-08-29Merge branch 'rickard/port-emigrate-bug/maint/OTP-12084' into maintRickard Green
* rickard/port-emigrate-bug/maint/OTP-12084: Verify run-queue asserts Fix emigrate bug in erts_port_task_schedule()
2014-08-28Merge branch 'vinoski/enif-schedule-nif' into maintRickard Green
* vinoski/enif-schedule-nif: add enif_schedule_nif() to NIF API
2014-08-28add enif_schedule_nif() to NIF APISteve Vinoski
In the #erlang IRC channel Anthony Ramine once mentioned the idea of allowing a NIF to use an emulator trap, similar to a BIF trap, to schedule another NIF for execution. This is exactly how dirty NIFs were implemented for Erlang/OTP 17.0, so this commit refactors and generalizes that dirty NIF code to support a new enif_schedule_nif() API function. The enif_schedule_nif() function allows a long-running NIF to be broken into separate NIF invocations. The NIF first executes part of the long-running task, then calls enif_schedule_nif() to schedule a NIF for later execution to continue the task. Any number of NIFs can be scheduled in this manner, one after another. Since the emulator regains control between invocations, this helps avoid problems caused by native code tying up scheduler threads for too long. The enif_schedule_nif() function also replaces the original experimental dirty NIF API. The function takes a flags parameter that a caller can use to indicate the NIF should be scheduled onto either a dirty CPU scheduler thread, a dirty I/O scheduler thread, or scheduled as a regular NIF on a regular scheduler thread. With this change, the original experimental enif_schedule_dirty_nif(), enif_schedule_dirty_nif_finalizer() and enif_dirty_nif_finalizer() API functions are no longer needed and have been removed. Explicit scheduling of a dirty NIF finalization function is no longer necessary; if an application wants similar functionality, it can have a dirty NIF just invoke enif_schedule_nif() to schedule a non-dirty NIF to complete its task. Lift the restriction that dirty NIFs can't call enif_make_badarg() to raise an exception. This was a problem with the original dirty NIF API because it forced developers to get and check all incoming arguments in a regular NIF, and then schedule the dirty NIF which then had to get all the arguments again. Now, the argument checking can be done in the dirty NIF and it can call enif_make_badarg() itself to flag incorrect arguments. Extend the ErlNifFunc struct with a new flags field that allows NIFs to be declared as dirty. The default value for this field is 0, indicating a regular NIF, so it's backwards compatible with all existing statically initialized ErlNifFunc struct instances, and so such instances require no code changes. Defining the flags field with a value of ERL_NIF_DIRTY_JOB_CPU_BOUND indicates that the NIF should execute on a dirty CPU scheduler thread, or defining it with a value of ERL_NIF_DIRTY_JOB_IO_BOUND indicates that the NIF should execute on a dirty I/O scheduler thread. Any other flags field value causes a NIF library loading error. Extend the ErlNifEntry struct with a new options field that indicates whether a NIF library was built with support for optional features such as dirty NIFs. When a NIF library is loaded, the runtime checks the options field to ensure compatibility. If a NIF library built with dirty NIF support is loaded into a runtime that does not support dirty NIFs, and the library defines one or more ErlNifFunc entries with non-zero flags fields indicating dirty NIFs, a NIF library loading error results. There is no error if a NIF library built with dirty NIF support is loaded into a runtime that does not support dirty NIFs but the library does not have any dirty NIFs. It is also not an error if a library without dirty NIF support is loaded into a runtime built with dirty NIF support. Add documentation and tests for enif_schedule_nif().
2014-08-28Merge branch 'tuncer/misspelled-another' into maintMarcus Arendt
* tuncer/misspelled-another: Fix misspellings of 'another'
2014-08-25Fix misspellings of 'another'Tuncer Ayaz
2014-08-22Fix ERTS_POLL_DEBUG_PRINT usageMichael Truog
2014-08-22Fix busy_port_SUITE:io_to_busy test-caseRickard Green
2014-08-22Ensure "runnable port" trace messages are not sent out of orderRickard Green
2014-08-22Ensure "runnable proc" trace messages are not sent out of orderRickard Green
2014-08-21Merge branch 'egil/proc_lib-optimizations/OTP-12060' into maintBjörn-Egil Dahlberg
* egil/proc_lib-optimizations/OTP-12060: stdlib: Update dependencies to erts-6.2 erts: Update preloaded erlang.beam stdlib: Use erlang:fun_info_mfa/1 in proc_lib:init_p/3 erts: Test erlang:fun_info_mfa/1 erts: Introduce erlang:fun_info_mfa/1
2014-08-21Merge branch 'nox/reedr-logging/OTP-12115' into maintLukas Larsson
* nox/reedr-logging/OTP-12115: Add number of entries to mnesia copy debug message Add thread index to allocator enomem dump slogan Add run queue index to process dump info Add missing error string to syslog logging in epmd Demote rare debug slogan of message discarding to debug build
2014-08-18Merge branch 'rickard/port-emigrate-bug/OTP-12084' into ↵Rickard Green
rickard/port-emigrate-bug/maint/OTP-12084 * rickard/port-emigrate-bug/OTP-12084: Verify run-queue asserts Fix emigrate bug in erts_port_task_schedule() Conflicts: erts/emulator/beam/erl_port_task.c
2014-08-14Fix +swct docRickard Green
2014-08-14Verify run-queue assertsRickard Green
2014-08-14Merge branch 'lukas/erts/fix_neg_of_int64_min/OTP-12097' into maintLukas Larsson
* lukas/erts/fix_neg_of_int64_min/OTP-12097: erts: Fix neg int overflow when sint is min size
2014-08-14Merge branch 'nox/clang-ubsan/OTP-12097' into maintLukas Larsson
* nox/clang-ubsan/OTP-12097: Properly handle SINT_MIN in small_to_big() Use offsetof() in io.c
2014-08-12fix indentation, add comment describing windows symlink creation assumptionLuis Rascão
2014-08-11Merge branch 'rickard/nosuspend-bug/OTP-12082' into maintRickard Green
* rickard/nosuspend-bug/OTP-12082: Fix build of test port program Update Makefile.src Add async_ports test Fix abort of nosuspend-tasks in erts_port_task_schedule()
2014-08-08erts: Fix neg int overflow when sint is min sizeLukas Larsson
When INT64_MIN is the value of a Sint64 we have to first cast it to an Uint64 before negating it. Otherwise we get an integer overflow which is undefined behaviour and in gcc 4.9 this results in -0 instead of -9223372036854775808 in gcc 4.8.
2014-08-08Merge branch 'tuncer/sanitizers' into maintBruce Yinhe
OTP-12081 * tuncer/sanitizers: Implement --enable-sanitizers[=sanitizers]
2014-08-08Merge branch 'lukas/erts/malloc_failure_errors/OTP-12085' into maintLukas Larsson
* lukas/erts/malloc_failure_errors/OTP-12085: erts: Print error reason when malloc fails
2014-08-07Fix emigrate bug in erts_port_task_schedule()Rickard Green
While current run-queue lock is unlocked in the call to erts_check_emigration_need() from erts_port_task_schedule() the port can be migrated to another run-queue by another thread. The code in erts_port_task_schedule() needs to check if this has occurred when returning from erts_check_emigration_need(), and if so respect the migration decision. When this was not done, the thread calling erts_port_task_schedule() held the wrong run-queue lock which caused invalid updates of the port task queue. This bug was automatically fixed by the rewrites in the branch rickard/r16b/port-optimizations-fixes/OTP-10336 (commit 56cef897ca3ad2377e34a6ea5800a54a28cbeb6e) introduced in erts-5.10 and do not effect erts versions after that.
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