| Age | Commit message (Collapse) | Author |
|---|
|
as a macro wrappper around enif_compare
|
|
|
|
* maint:
Add persistent_term:get(Key, DefaultValue)
Make dialyzer faster for left-associative andalso/orelse expressions
|
|
https://bugs.erlang.org/browse/ERL-843
|
|
|
|
* sverker/map-from-ks-vs-bug/OTP-15567:
erts: Add test for bug in enif_make_maps_from_arrays
erts: Fix bug in erts_map_from_ks_and_vs
|
|
|
|
|
|
Apply type optimizations across local function calls
|
|
This commit lets the type optimization pass work across functions,
tracking return and argument types to eliminate redundant tests.
|
|
* bjorn/erts/optimize-is_function2:
Optimize the is_function/2 guard test
|
|
|
|
* lukas/erts/scheduler-pollset-fixes/OTP-15538:
erts: Fix getting of poll events on linux >= 4.15.0
erts: Use reduction based polling for starved poll-set
erts: Fix pollset test cases
|
|
The is_function2 instruction is executed surprisingly
frequently when running dialyzer or the compiler. It
cannot hurt to optimize it a little.
|
|
josevalim/jv-no-bin-alloc-on-empty-append/OTP-15535
Do not allocate new bitstring/binary on empty append
|
|
|
|
* lukas/erts/spawn_opt_max_heap_tc_fix:
erts: Fix process_SUITE:max_heap tests
|
|
Conflicts:
erts/emulator/beam/bif.c
erts/preloaded/ebin/erlang.beam
erts/preloaded/ebin/erts_internal.beam
erts/preloaded/ebin/prim_file.beam
|
|
This flag allows logger and other components to set the
process which log messages from ERTS are to be sent.
|
|
* maint:
Implement integer_to_list/2 and integer_to_binary/2 as CIFs
Accept base in all integer-printing functions
Document cleanup semantics for atomics and counters
|
|
|
|
|
|
Custom message format for enif_select
|
|
Make sure to flush all queued emulator logger messages
before starting the test. The trap_exit_badarg could sometimes
leave messages and since the handler and messages now are
handled in different processes this becomes a problem.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
* sverker/big-band-bug/ERL-804/OTP-15487:
erts: Fix bug in 'band' of two negative numbers, one big
|
|
maint
* sverker/fix-atomics-get-large-unsigned/PR-2061/OTP-15486:
erts: Fix possible heap corruption getting atomics
|
|
The guard BIF `length/1` would calculate the length of the list in one
go without yielding, even if the list was were long. To make it even
worse, the call to `length/1` would only cost a single reduction.
This commit reimplements `length/1` so that it eats a number of
reductions proportional to the length of the list, and yields if the
available reductions run out.
|
|
Similar bug as for bxor fixed by abc4fd372d476821448dfb9
Ex:
1> io:format("~.16B\n", [-16#1110000000000000000 band (-1)]).
-1120000000000000000
Wrong result for
(-X bsl WS) band -Y.
where
X is any positive integer
WS is erlang:system_info(wordsize)*8*N where N is 1 or larger
Y is any positive integer smaller than (1 bsl WS)
Fix:
The subtraction of 1 (for 2-complement conversion)
must be carried along all the way to the last words.
|
|
Due to comparison as a signed integer, when getting an unsigned atomic
in the range 2^63-1..2^64-1 (when the most significant bit was set), the
heap could get corrupted when the integer was retrieved: hsz would get
set to zero, but the code proceeded to build a bignum.
Steps to reproduce (at least on x86_64):
$ erl
1> A = atomics:new(1,[{signed,false}]).
2> atomics:put(A,1,18446744073709551615).
3> atomics:get(A,1).
At the last step, the shell would print some garbage and hang.
|
|
* maint:
Fix reading beyond end of bignum in integer squaring
|
|
The multiplication of two bignums is specially optimized when the two
operands have the same address, because squaring can be done more
efficiently than multiplication of two arbitrary integers. That is,
expressions such as `I * I` will be calculated by squaring the value
of `I`.
The optimized function for squaring would read one word beyond the
end of the bignum in the last iteration of a loop. The garbage
value would never be used. In almost all circumstances that would
be harmless. Only if the read word happened to fall on the start
of an unmapped page would the runtime crash. That is unlikely
to happen because most bignums are stored on a process heap, and
since the stack is located at the other end of the block that the
heap is located in, the word beyond the end of bignum is guaranteed
to be readable.
|
|
Conflicts:
erts/emulator/beam/erl_process.c
|
|
* lukas/OTP-21.1.1/scheduler_pollset/OTP-15475:
erts: Move fds with active true behaviour to own pollset
erts: Fix lists_member_2 reduction count
erts: Allow code_model_small to be set in xcomp setting
erts: Implement delay_send using timer instead of poll
erts: Optimize driver_set_timer(0) to fire at once
erts: Optimize the inet driver multi timers for one timer
erts: Move all inet tcp CONNECTED timers to multi timer
erts: Add erts_io_notify_port_task_executed to check_io msacc state
erts: Add pre-alloc to ALLOC msacc state
erts: Make thr prgr wakeup current or sched 1
erts: Pass thread progress data where possible
|
|
At start of the VM a poll-set that the schedulers
will check is created where fds that have triggered
many (at the moment, many means 10) times without
being deselected inbetween. In this scheduler specific
poll-set fds do not use ONESHOT, which means that the
number of syscalls goes down dramatically for such fds.
This pollset is introduced in order to handle fds that
are used by the erlang distribution and that never
change their state from {active, true}.
This pollset only handles ready_input events,
ready_output is still handled by the poll threads.
During overload, polling the scheduler poll-set is done
on a 10ms timer.
|
|
|
|
* sverker/erts/cuddle-driver_SUITE:
erts: Fix faulty assert in driver_SUITE
erts: Improve driver_SUITE:smp_select
|
|
|
|
Wow, that could have been embarrassing.
|
|
|
|
Set drv_use_singleton.fd_stop_select to -2 in start()
as it's only used by driver_SUITE:driver_select_use.
|
|
|
|
to better detect an actual missing ready_input event
on slow machines (valgrind)
and without wasting time with long sleep on fast machines.
|
|
to be usable by other application tests.
|
|
|
