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2015-02-03trace_bif_SUITE: Ensure that a call to time/0 is not removedBjörn Gustavsson
Assigning the result of a BIF call to a variable used to be sufficient to prevent the call from being optimized away. With the more aggressive optimization that will be introduced in a future commit it will not be sufficient. Matching the return value will prevent the compiler from doing the optimization.
2014-12-19erts: Improve crash dumpsLukas Larsson
This commit improves crash dumps in several ways: * Suspends schedulers to get a current snapshot * Dumps information about scheduler * Dumps stack trace of current running process (including Garbing processes)
2014-11-26Merge branch 'maint'Sverker Eriksson
2014-11-26Merge branch 'sverk/port_get_data-race/OTP-12208' into maintSverker Eriksson
* sverk/port_get_data-race/OTP-12208: erts: Fix port data memory allocation bug
2014-11-25erts: Fix port data memory allocation bugSverker Eriksson
for non-immediate port data >= sizeof(Eterm)*2 words.
2014-11-10Merge branch 'maint'Bruce Yinhe
2014-11-10Merge branch 'vinoski/dirty-nif-return-gc' into maintBruce Yinhe
OTP-12300 * vinoski/dirty-nif-return-gc: Fix gc-related problem with dirty NIFs
2014-11-07Merge branch 'maint'Bruce Yinhe
2014-11-04Fix gc-related problem with dirty NIFsSteve Vinoski
Ensure that the return value from a dirty NIF call is made part of the GC rootset. Add a new regression test to nif_SUITE. Thanks to Daniel Goertzen for reporting the error and providing a test case, and to Sverker Eriksson for making test case reproducible and finding the fix.
2014-11-02Expose NIF versionPeter Lemenkov
This patch allows checking for NIF API version in a way similar to driver version. E.g. by calling erlang:system_info(nif_version). Signed-off-by: Peter Lemenkov <[email protected]>
2014-10-28Merge branch 'egil/nox/maps-match_specs/OTP-12270'Björn-Egil Dahlberg
* egil/nox/maps-match_specs/OTP-12270: erts: Fix return value from erts_maps_get to be const Properly support maps in match_specs Support maps in ms_transform Return pointer to value in erts_maps_get()
2014-10-28Merge branch 'maint'Lukas Larsson
* maint: Use isfinite() instead of finite() when available
2014-10-28Merge branch 'sv/isfinite/OTP-12268' into maintLukas Larsson
* sv/isfinite/OTP-12268: Use isfinite() instead of finite() when available
2014-10-28Use isfinite() instead of finite() when availableAnthony Ramine
OS X Mavericks builds result in a number of warnings about finite() being deprecated, like these: beam/erl_arith.c:451:7: warning: 'finite' is deprecated: first deprecated in OS X 10.9 [-Wdeprecated-declarations] ERTS_FP_ERROR(p, f1.fd, goto badarith); ^ sys/unix/erl_unix_sys.h:319:33: note: expanded from macro 'ERTS_FP_ERROR' ^ sys/unix/erl_unix_sys.h:244:51: note: expanded from macro '__ERTS_FP_ERROR' ^ /usr/include/math.h:718:12: note: 'finite' has been explicitly marked deprecated here extern int finite(double) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_0, __MAC_10_9, __IPHONE_NA, __IPHONE_NA); Add checks to use isfinite() instead of finite() where available. Verified on OS X Mavericks 10.9.5 and Ubuntu 12.04.
2014-10-23Merge branch 'rickard/master/eager-check-io/OTP-12117'Rickard Green
* rickard/master/eager-check-io/OTP-12117: No eager check I/O on OSE Introduce support for eager check I/O scheduling
2014-10-23Merge branch 'rickard/maint-17/eager-check-io/OTP-12117' into maintRickard Green
* rickard/maint-17/eager-check-io/OTP-12117: No eager check I/O on OSE Introduce support for eager check I/O scheduling
2014-10-13Merge branch 'maint'Sverker Eriksson
2014-09-30erts: Add test case for port_set_data and port_get_dataSverker Eriksson
2014-09-25Merge branch 'rickard/maint-17/eager-check-io/OTP-12117' into ↵Rickard Green
rickard/master/eager-check-io/OTP-12117 * rickard/maint-17/eager-check-io/OTP-12117: No eager check I/O on OSE Introduce support for eager check I/O scheduling Conflicts: erts/preloaded/ebin/erlang.beam
2014-09-25Merge branch 'rickard/eager-check-io/OTP-12117' into ↵Rickard Green
rickard/maint-17/eager-check-io/OTP-12117 * rickard/eager-check-io/OTP-12117: Introduce support for eager check I/O scheduling Conflicts: erts/emulator/beam/erl_bif_info.c erts/emulator/beam/erl_init.c erts/emulator/beam/erl_process.c erts/preloaded/ebin/erlang.beam
2014-09-25Introduce support for eager check I/O schedulingRickard Green
2014-09-12Merge branch 'maint'Sverker Eriksson
2014-09-12erts: Remove enif_have_dirty_schedulers()Sverker Eriksson
and add 'dirty_scheduler_support' to ErlNifSysInfo
2014-09-05Merge branch 'maint'Rickard Green
* maint: Only run upper boundry tuple test with lots of memory
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
2014-09-04Merge branch 'maint'Sverker Eriksson
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 'maint'Sverker Eriksson
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
2014-09-03erts: 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.
2014-08-29Merge branch 'maint'Rickard Green
* maint: 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/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
2014-08-28Merge branch 'maint'Rickard Green
* maint: 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().
2014-08-22Fix busy_port_SUITE:io_to_busy test-caseRickard Green
2014-08-21Merge branch 'maint'Björn-Egil Dahlberg
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
2014-08-20Properly support maps in match_specsAnthony Ramine
2014-08-11Merge branch 'maint'Rickard Green
* maint: Fix build of test port program Update Makefile.src Add async_ports test Fix abort of nosuspend-tasks in erts_port_task_schedule()
2014-08-11Merge 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()
2014-08-06Fix build of test port programRickard Green
2014-08-06Merge branch 'maint'Lukas Larsson
* maint: erts: Fix tc and docs after {fd,FD} bind change
2014-08-06erts: Fix tc and docs after {fd,FD} bind changeLukas Larsson
The sha of the original change is 52810718b
2014-08-05Update Makefile.srckudryashov-sv
2014-08-05Add async_ports testSergey Kudryashov
2014-07-11erts: Test erlang:fun_info_mfa/1Björn-Egil Dahlberg
2014-06-06Merge branch 'maint'Rickard Green
2014-06-06Merge branch 'rickard/binary_to_term_error/OTP-11931' into maintRickard Green
* rickard/binary_to_term_error/OTP-11931: Replace erlang:binary_to_term() Erlang wrappers Conflicts: erts/preloaded/ebin/erts_internal.beam