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* np/sharing-preserved-copy/OTP-12590: (28 commits)
Refactor have seq_trace token test
Use sharing preserving copy error messages and exceptions
Use sharing preserving copy in enif_make_copy
Refactor sharing preserved copy flags
Fix rebase of SHCOPY seq_tokens
Fix erts_debug:copy_shared/1 prototype
Update preloaded module erlang.beam
Add erlang:copy_literals/2 spec
Add copy_literals testcase
Do not use GCC extensions in copy
Use copy literal range check in message passing and purging
Add BIF for setting internal copy literal range
Copy literals in copy sharing
Refactor copy sharing
Add support for HAMT maps in preserved copy
Fix Map preserved sharing copy implementation
Fix Halfword removal
Fix internal stacks
Add support for maps in preserved copy
Add --enable-sharing-preserving configure flag
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Conflicts:
erts/emulator/beam/external.c
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* egil/18/fix-maps-binary_to_term/OTP-13125:
erts: More testcases for map binary_to_term/1
erts: Fix maps decode in erlang:binary_to_term/1
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Decoding a term with a large (HAMT) map in an small (FLAT) map could cause
a critical error if the external format was not produced by beam.
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The TMPBUF option is no longer needed due to is_literal test and NONE
was only used for initial debugging. So we remove the entire option.
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Repeatedly reload a literals module while sending
the references literals around in a process ring.
This will smoke test the non-copying literals message sending does
not corrupt code unloading.
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The Map implementation has changed since initial preserved copy implementation.
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Halfword is no longer present in the runtime system.
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The internal stacks has changed between releases.
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This is very verbose, you have been warned.
It should work with the copy-spy.py script, which may be a bit outdated.
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This commit is just for debugging purposes, will probably be reverted.
It comes with a the erts_debug:copy_shared/1 BIF. If SHCOPY_DISABLE
is defined, SHCOPY starts disabled and is dynamically enabled the first
time that the BIF is called.
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Add functions size_shared, copy_shared_calculate and copy_shared_perform.
Add the infrastructure for making these communicate with each other.
Add debug information to other places in the VM, to watch interaction
with the sharing-preserving copy.
CAUTION: If you define the SHCOPY_DEBUG macro (after SHCOPY is actually
used in the VM) and make the whole OTP, there will be a lot of debugging
messages during make (it will also be enabled in erlc). You have been
warned...
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* sverk/nif_SUITE-win64-long-bug:
erts: Fix nif_SUITE for win64
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* sverk/binary-split-bug:
stdlib: Fix bug in binary:split for empty binary
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* zenhack/fix-erroneous-__uint32_t:
Fix erroneous use of __uint32_t
OTP-13105
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Bug introduced om master branch at b93e9b611056828a
and reported in ERL-43.
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* rickard/l2b-b2l-yield/OTP-13096:
Improve yield strategy for list_to_binary()/binary_to_list()
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* rickard/gc-bump-reds/OTP-13097:
Bump reductions on GC
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* rickard/gc-after-bif-cond/OTP-13098:
Use the same conditions when triggering GC after BIF
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* rickard/ohmq/OTP-13047:
Fragmented young heap generation and off_heap_message_queue option
Refactor GC
Introduce literal tag
Conflicts:
erts/doc/src/erlang.xml
erts/emulator/beam/erl_gc.c
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* sverk/literal-memory-range:
erts: Refactor line table in loaded beam code
erts: Refactor header of loaded beam code
fix check_process_code for separate literal area
erts: Add support for fast erts_is_literal()
erts: Refactor erl_mmap to allow several mapper instances
erts: Add new allocator LITERAL
erts: Fix strangeness in treatment of MSEG_ALIGN_BITS
erts: Cleanup main carrier creation
erts: Remove unused erts_have_erts_mmap
erts: Refactor config test for posix_memalign
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where type long is only 32-bit and can not hold a pointer
unless your lucky.
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Avoid yield in the BIF when input is small. This either yielding
before beginning to work in the BIF, or by allowing some more
reductions before yielding.
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* The youngest generation of the heap can now consist of multiple
blocks. Heap fragments and message fragments are added to the
youngest generation when needed without triggering a GC. After
a GC the youngest generation is contained in one single block.
* The off_heap_message_queue process flag has been added. When
enabled all message data in the queue is kept off heap. When
a message is selected from the queue, the message fragment (or
heap fragment) containing the actual message is attached to the
youngest generation. Messages stored off heap is not part of GC.
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to use real C struct with correct types
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to use a real C struct instead of array.
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