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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It should work with the copy-spy.py script, which may be a bit outdated.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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* bjorn/cleanup:
beam_validator: Don't allow an 'undefined' entry label in a function
beam_validator: Remove obsolete DEBUG support
v3_kernel: Speed up compilation of modules with many funs
beam_dict: Speed up storage of funs
beam_asm: Speed up assembly for modules with many exports
sys_core_dsetel: Use a map instead of a dict
sys_pre_expand: Cover coerce_to_float/2
Cover code for callbacks in sys_pre_expand
Cover sys_pre_expand:pattern/2
sys_pre_expand: Remove uncovered clause in pat_bit_size/2
sys_pre_expand: Clean up data structures
sys_pre_expand: Remove vestiges of variable usage tracking
sys_pre_expand: Remove imports of ordsets functions
sys_pre_expand: Remove unnecessary inclusion of erl_bits.hrl
io: Make a fast code path for i/o requests
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Before 912fea0b beam_validator could validate disassembled files.
That's probably why the entry label was allowed to be 'undefined'.
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No one has used the debug support in many years. Also, the debug
support is not free. There are calls to lists:foreach/2 that will be
executed even when debug support is turned off.
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* c-rack/fix-typo-prim-inet:
Fix minor typo "timout" -> "timeout"
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* zenhack/fix-erroneous-__uint32_t:
Fix erroneous use of __uint32_t
OTP-13105
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* deadok22/jinterface-input-stream-read-any-etf-113:
OtpInputStream: external fun terms in read_any()
OTP-13106
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* legoscia/erl-make-exit-code:
Make erl -make return non-zero exit code on failure
OTP-13107
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* kanatohodets/ssh-subsystem-typo:
Fix spelling of ssh 'subsystem'
OTP-13108
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* lucafavatella/dialyzer-remote-type:
Delete remote types-related dead code in erl_types
OTP-13104
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* zandra/snmp-appup:
add a soft upgrade instruction to the snmp appup
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* zhird/johnheizenberg/snmp_config_check_imask_bugfix:
fix snmp_conf check imask bug
OTP-13101
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Conflicts:
OTP_VERSION
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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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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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