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Disable the use of floating point exceptions
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Bug introduced in master by
613cde66c25464121f2f6dace99782bad0e07d9b
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from ensure_dirty_proc_handled
as an outline function callable from inline functions.
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If we don't use per thread the value becomes completely
nonsensical on systems with more than one scheduler.
We keep the old solaris behaviour in order to support the
option, but it only really works when using a single
scheduler.
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* lukas/erts/otp-21-misc:
erts: Fix unused variable warning in unix prim file
erts: Fix erts_os_times warning
kernel: Fix comment in kernel_config
kernel: Refactor erl_signal_handler startup
kernel: Remove doc for unused browser_cmd variable
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Fix typos in erl_driver.xml
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Symptom: maps:iterator+next returns different orders
for the exact same map.
Problem: Number of cached key-values within iterator term
depends on number of input reductions to erts_internal_map_next_3.
Solution: Build cached key-values in destructive non-reverse order
to not affect iteration order.
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Floating point exceptions has been disabled since 2011 on macOS
(fa0f8d2c29b) and on Linux since 2014 (c7ddafbe6dbc) because
there were unresolved stability issues.
Floating point exceptions are not disabled by default on FreeBSD,
and if OTP is compiled with gcc (as opposed to clang) floating
point exceptions will be used.
81a6adab693a introduced a bug in erts/emulator/Makefile.in which would
cause the building of OTP to fail if floating point exceptions were
enabled. The bug was not noticed because it turns out that none of our
daily build machines has floating point exceptions enabled.
Since floating point exceptions is not tested, we should not expect
them to work reliably on any platform. Therefore, turn off floating
point exceptions unconditionally in erts/configure.in. For the moment
we will keep the code in the runtime system that handles floating
point exceptions.
(This commit also fixes the bug in erts/emulator/Makefile.in, in
case floating point exceptions ever become reliable and enabled.)
https://bugs.erlang.org/browse/ERL-620
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as it's now only used for empty tables by ets:new/2.
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by only allocating one FixedDeletion with the new "all" flag
instead of one FixedDeletion per slot.
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* Remove all "mtraversal_" prefixes.
* Rename all local context variables as "ctx".
* Changed callbacks from function arguments
to members of new base context struct "match_callbacks_t"
* Remove unnecessary struct initializations "= {0}"
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to be done after lock has been released.
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Separate pseudo-deleted-flag from the hash value.
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by using a cooperative strategy that will make
any process accessing the table execute delelete_all_objects_continue
until the table is empty.
This is not an optimal solution as concurrent threads will still
block on the table lock, but at least thread progress is made.
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Introduce is_map_key/2 guard BIF
OTP-15037
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This replaces all uses of lib:progname/0 in tests.
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* john/erts/fix-windows-symlinks/OTP-15062/ERL-615:
Stop assuming that all NTFS reparse points are links
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This fixes a crash that would occur when using file:read_file_info/1
on a file with a non-link reparse point, which are commonly seen in
RSS and OneDrive folders.
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* maint:
Updated OTP version
Update release notes
Update version numbers
ssl: Prepare for release
ssl: Proper handling of clients that choose to send an empty answer to a certificate request
heart: Use ntohs instead of manual conversion
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into maint-20
* john/erts/fix-heart-command-overflow/OTP-15034/ERIERL-166:
heart: Use ntohs instead of manual conversion
# Conflicts:
# lib/kernel/test/heart_SUITE.erl
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This reverts commit 202bb737e3deabfebee683266f4b7c42781eb521.
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This reverts commit 345f7f527a4c26ef49cef0d81e2c8b71bf01ebc3.
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This complements the `map_get/2` guard BIF introduced in #1784.
Rationale.
`map_get/2` allows accessing map fields in guards, but it might be
problematic in more complex guard expressions, for example:
foo(X) when map_get(a, X) =:= 1 or is_list(X) -> ...
The `is_list/1` part of the guard could never succeed since the
`map_get/2` guard would fail the whole guard expression. In this
situation, this could be solved by using `;` instead of `or` to separate
the guards, but it is not possible in every case.
To solve this situation, this PR proposes a `is_map_key/2` guard that
allows to check if a map has key inside a guard before trying to access
that key. When combined with `is_map/1` this allows to construct a
purely boolean guard expression testing a value of a key in a map.
Implementation.
Given the use case motivating the introduction of this function, the PR
contains compiler optimisations that produce optimial code for the
following guard expression:
foo(X) when is_map(X) and is_map_key(a, X) and map_get(a, X) =:= 1 -> ok;
foo(_) -> error.
Given all three tests share the failure label, the `is_map_key/2` and
`is_map/2` tests are optimised away.
As with `map_get/2` the `is_map_key/2` BIF is allowed in match specs.
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* sverker/lc-thread-exit-free-fix:
erts: Fix memory leak in lock checker at thread exit
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* rickard/process_info/OTP-14966:
Fix scheduled process_info() 'status' request
Fix handling of process-info requests in receive
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All corba applications are moved to a separate repository.
E.g. orber, ic, cosEvent, cosEventDomain, cosNotifications
cosTime, cosTransactions, cosProperty and cosFileTransfer.
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* siri/kernel/logger/OTP-13295:
Add documentation of the built-in logger handlers
Catch badarg in logger:get_format_depth/0
Add chars_limit option to logger_formatter
Don't kill logger process until all other processes are dead
Set call timeout for logger_server to infinity
Update primary bootstrap
Test cuddle for logger
Update cth_log_redirect to a logger handler
Start using logger internally in kernel and stdlib
Remove error_logger process and add logger process
Add logger
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If no message/signal is sent (to same destination)
then monitor signal is flushed when process is scheduled out.
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