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erlang:system_info(allocator) ->
{Allocator, Version, Features, Settings}
Features includes 'literal_mmap' and/or 'exec_mmap'
if they exist.
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from {allocator,mseg_alloc} to {allocator,erts_mmap}
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called 'literal_mmap' and 'exec_mmap'.
Also moved existing erts_mmap info from 'mseg_alloc'
to its own system_info({allocator, erts_mmap})
with "allocators" default_mmap, literal_mmap and exec_mmap.
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on 32-bit, as the granularity of the literal bit vector
is super-alignment.
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* bjorn/debugger/cuddle-with-tests:
Remove ?line macros
Replace "%" with "%%" at the beginning of a line
Eliminate doc and suite clauses
Eliminate use of the ?t macro
Eliminate use of test_server:format()
Eliminate use of test_server:fail/{0,1}
Use proplists:get_value/2 instead of ?config()
Modernize use of timetraps
int_SUITE: Fix interpretable/1 in a non-installed system
int_SUITE: Fix interpretable/1 on cross-compiled platforms
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* hasse/map_0_is_builtin/OTP-13153:
stdlib: Fix warnings
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* lukas/erts/tracing/fix-spawned-lc-error/OTP-10267:
erts: Fix lock order bug when only child is procs traced
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* hasse/map_0_is_builtin/OTP-13153:
stdlib: The type map() is built-in
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* bjorn/compiler/misc-opt:
v3_kernel: Construct literal lists properly
Use the register map in %live in beam_utils:is_killed_block/2
Teach beam_utils to check liveness for put_map instructions
beam_peep: Help out beam_jump
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* bjorn/erts/beam_load:
Optimize get_tuple_element instructions that target Y registers
Mend beam_SUITE:packed_registers/1
Correct unpacking of 3 operands on 32-bit archictectures
Eliminate misleading #ifdef ARCH_64 in beam_opcodes.h
beam_debug: Correct masking when unpacking packed operands
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While we are it, also re-ident the files.
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We want to re-ident the source files after having taken out
all ?line macros. When re-indenting using Emacs, it's important
that comments that should be at the beginning of a line (or
follow the indentation of statements around it) must start with
"%%".
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Either rely on the default 30 minutes timetrap, or set the timeout
using the supported methods in common_test.
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interpretable/1 tests (among other things) that we are not allowed
to interpret modules in certain applications (such as kernel and
stdlib).
int:interpretable/1 as currently implement enforces the restriction
only in an installed system (the applications must have versions,
such as kernel-1.2.3).
We could modify int:interpretable/1 to enforce the restriction,
but it could sometimes be useful to be able to debug (for example)
erl_lint or other library modules that can safely be reloaded
without crashing the run-time system.
Therefore, assume that anyone working in a non-installed system
knows what they are doing and fix the test case so that it stop
failing in a non-installed system.
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c7e82c6b406b teached the debugger to use the 'source' key
in Mod:module_info/1 to help locate the source code
corresponding to a BEAM file. The new test that was added
at the same time will fail if the test suites were
cross-compiled on another computer (i.e., the 'source' key
would not point to the source file on the target computer).
Avoid the problem by letting int_SUITE:init_per_suite/1 compile
the BEAM files. That will ensure that 'source' keys points to
the actual source file.
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that uses its own super carrier (erts_exec_mmapper)
to guarantee low addressed and executable memory (PROT_EXEC).
Currently only used on x86_64 that needs low memory
for HiPE/AMD64's small code model.
By initializing erts_exec_mapper early we secure
its low memory area before erts_literal_mmapper might
steal it.
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to prepare for hipe native code allocation.
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Make the callbacks more general to be usable for any allocator
that that uses its own ErtsMemMapper.
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Reduce main carrier size
and number of free descriptors.
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* lukas/erts/tracer-module-and-more/PR-1009/OTP-10268: (26 commits)
erts: Don't trace on link events when port is dead
erts: more logging in trace_bif_SUITE trace_bif_return
erts: Make trace_delivered go via sys msg dispatcher again
erts: Add comment about future trace optimizations
erts: Optimize tracer reload test
erts: Document erlang:match_spec_test/3
runtime_tools: Make dbg work with erl_tracer modules
runtime_rools: Allow new timestamp trace flags
runtime_tools: Lots of dbg docs updates
erts: Deallocate heap fragments from trace nif calls
eprof: Fix tests after tracer module incompatabilities
fprof: update to work with new spawned trace event
erts: Add 'spawned' trace event to 'procs' trace flag
erts: send and receive no longer need status lock
erts: Do 'unregister' as "self-tracing"
erts: Silence harmless valgrind warning in dec_term
erts: Fix end_per_testcase crash in local_trace_SUITE
observer: Update ttb to work with tracing on ports
runtime_tools: Update dbg to work with tracing on ports
erts: Add tracing examples in match spec docs
...
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This is needed as otherwise messages from system_profile
will not be guaranteed to arrive before trace delivered.
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Without off_heap message queue the GC of the tracer could take
very long and thus delay the code:purge which would in turn allow
the trace generator to generate a lot of more messages which would
make the tracer GC for even longer etc etc. The time taken for the
testcase could go up to as large as 10 seconds and use lots of memory.
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OTP-13501
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OTP-13500
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OTP-13502
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Any heap fragment created during a nif call to a tracer nif
should be free'd immediately in order for the GC not to treat
it as live data.
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OTP-13499
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OTP-13497
This trace event is triggered when a process is created from the
process that is created.
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Rickards said that this was ok
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We have the main lock on rp->p, so why not?
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provoked by nif_SUITE:nif_binary_to_term.
If we fail to decode an immediate (unsafe atom for example) with
a dummy factory then hp and factory->hp will both be uninitialized
and valgrind will complain about comparing them.
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OTP-13500
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