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* Use of __atomic builtins when available.
* Improved configure test that checks for missing memory
barrier in __sync_synchronize(). The old approach was to
verify known working gcc versions and check gcc version at
compile time. Besides not being very safe, the old approach
often unnecessarily caused usage of the very expensive
workaround.
* Introduced (no overhead) workaround for missing clobber in
__sync_synchronize() when using buggy LLVM implementation of
__sync_synchronize().
* Implement native memory barriers for ARM processors supporting
the DMB instruction.
* Use of volatile store on Alpha as atomic set operation if no
__atomic_store_n() is available (already used on x86/x86_64
Sparc V9, PowerPC, and MIPS). Fallback used when not using
volatile store is typically very expensive.
* Use volatile load on Alpha and ARM as atomic read operation
if no __atomic_load_n() is available (already used on
x86/x86_64 Sparc V9, PowerPC, and MIPS). Fallback when not
using volatile load is typically very expensive.
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* lukas/erts/isfinite-fix/OTP-12268:
erts: Fix finite warning for clang
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clang aka llvm claims to be __GNUC__ and thus we have to
explicitly check that it is not used.
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* lukas/erts/bif_info_rebuild/OTP-12344:
Sort keys before generating
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* vinoski/rm-foo-dtrace:
Clean up temporary dtrace file during config
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* sverk/port_get_data-race/OTP-12208:
erts: Fix port data memory allocation bug
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When configuring erts to support dynamic trace via dtrace, be sure to clean
up the temporary file "erts/foo-dtrace.h" used to help check for dtrace
support. Otherwise, it shows up as an untracked file in git.
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This has to be done in order to consistently generate the same
file so that we do not get rebuilds all the time.
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* rickard/maint-17/activate-runq/OTP-12287:
Do not let non-empty run-queue prevent activation of scheduler
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* rickard/ppc32-atomic-opt/OTP-12250:
Optimize atomic ops with release barrier for 32-bit PowerPC
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* rickard/libatomic_ops_improvements/OTP-12302:
Implement support for double word atomics using libatomic_ops
Improve usage of libatomic_ops for word size atomics
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OTP-12323
* sverk/cpool-search-improvement:
erts: Add internal docs for super carrier and new cpool search.
erts: Fix bug causing mbc to be deleted from cpool before it was inserted
erts: Fix bug causing mbc removed from cpool to be used at pool entrance
erts: Add pooled_list and traitor_list
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for non-immediate port data >= sizeof(Eterm)*2 words.
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* sverk/with-ssl-rpath/OTP-12316:
erts,crypto: Add configure option --with-ssl-rpath
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* lem/epmd_sd_notify/OTP-12321:
epmd: Unify systemd autoconf macros usage
epmd: Added systemd notify support to EPMD
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Don't use both HAVE_SYSTEMD_DAEMON and HAVE_SYSTEMD_SD_DAEMON - use only
the former one and remove the latter one entirely.
Signed-off-by: Peter Lemenkov <[email protected]>
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Signed-off-by: Peter Lemenkov <[email protected]>
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* lukas/erts/isfinite-fix/OTP-12268:
erts: Use finite instead of isfinite with gcc
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Turns out that isfinite emits a function call and not
an instruction in gcc, this makes estone float arith
about 50-75% slower. finite emits the instruction so
we use that instead.
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* siri/no-unicode-atoms/OTP-12172:
Remove comments about unicode atoms in OTP 18
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* s1n4/zlib_doc_typo:
Fix a typo in the zlib documentation
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There was once a plan to implement support for unicode atoms in OTP
18. This plan has been stopped until further notice, and the
information about this is now removed from the documentation.
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Use AO_fetch_compare_and_swap*() when present
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OTP-12300
* vinoski/dirty-nif-return-gc:
Fix gc-related problem with dirty NIFs
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OTP-12298
* lemenkov/expose_nif_version:
Expose NIF version
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* vinoski/fix-smp-disable-with-ds/OTP-12295:
Fix "-smp disable" for emulator with dirty schedulers
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Conflicts:
OTP_VERSION
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* lukas/erts/fix_undefined_behaviour/OTP-12290:
erts: Fix ub in list_to_integer and bignum div
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* lukas/erts/fdopen_non_bound_win32_fix/OTP-12289:
erts: getsockname is not allowed on non-bound sockets
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rickard/maint-17/activate-runq/OTP-12287
* rickard/activate-runq/OTP-12287:
Do not let non-empty run-queue prevent activation of scheduler
Conflicts:
erts/emulator/beam/erl_process.c
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Conflicts:
erts/emulator/beam/erl_process.c
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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.
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* sverk/cpool_fetch-dc_list-bug/OTP-12249:
erts: Fix bug when delayed deallocated carrier is reused by cpool_fetch
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* sverk/beam-ranges-bug/OTP-12273:
erts: Fix bug in beam_ranges
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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]>
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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.
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* sverk/etp-check-beam-ranges:
erts: Add gdb command etp-check-beam-ranges
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Symptom: VM on OSX (darwin11.4.2) with +Meamin running sasl tests,
crashing when init:reboot() does erlang:purge_module(installer).
Problem: Off-by-one bug in beam_ranges:find_range, returning the wrong
range if the 'end' of one module is the 'start' of the next. This is only
possible if using sys_alloc (+Meamin) as our own allocators always put
block headers between allocated payload data.
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