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* egil/erts/tracing-support-lttng/OTP-13532: (28 commits)
runtime_tools: User's guide to LTTng and dyntrace
runtime_tools: Fix Dtrace build
erts: Fix gc messages in tracer_SUITE
erts: Fix gc messages in sensitive_SUITE
erts: Fix gc messages in trace_port_SUITE
tools: Update fprof tests
tools: Update fprof with new gc traces
runtime_tools: Update dyntrace_lttng_SUITE tests
runtime_tools: Add 'return_to' for call tracing
erts: Fix return_to trace callback
erts: Update erl_tracer documentation
erts: Fix erl_tracer documentation typos
Update preloaded erl_tracer.beam
erts: Update erl_tracer type specs
runtime_tools: Add lttng dyntrace tests
runtime_tools: Extend 'trace' and 'enabled' tracer callbacks
erts: Extend 'enabled' and 'trace' tracer callbacks
runtime_tools: Extend 'enabled' tracer callbacks
erts: Extend 'enabled' tracer callbacks
runtime_tools: Update lttng garbage collection trace
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Adds the following capabilities to a tracer backend
* enabled_running_procs/3 changed from enabled_running/3
* enabled_running_ports/3
* trace_running_procs/6 changed from trace_running/6
* trace_running_ports/6
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Adds the following capabilities to a tracer backend
* enabled_procs/3
* enabled_ports/3
* enabled_running/3
* enabled_call/3
* enabled_send/3
* enabled_receive/3
* enabled_garbage_collection/3
These functions will fall back to
enabled/3
if not provided and the tracepoint is active.
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Replace 'gc_start' and 'gc_end' with
* 'gc_minor_start'
* 'gc_minor_end'
* 'gc_major_start'
* 'gc_major_end'
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* mikpe/fp-exceptions-cleanups/PR-1019/OTP-13531:
clean up FP exception code in sys_float.c
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* mikpe/fp-exceptions-neuter-matherr/PR-1018/OTP-13531:
matherr() must not fake an FP exception
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second merge of this branch with some bug fixing
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Using the new type syntax, we can specify which keys are required, and
which are optional in a way Dialyzer could use.
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* egil/maps-api-additions/PR-1025/OTP-13522:
stdlib: Document maps:update_with/3,4
stdlib: Add tests for maps:update_with/3,4
stdlib: Add maps:update_with/3,4
erts: Add tests for maps:take/2
stdlib: Document maps:take/2
erts: Add BIF maps:take/2
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* c-rack/fix-erl-dist-protocol-typo/OTP-13517:
Fix typo in description of EPMD_DUMP_REQ response
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According to the source code, there is a space before the newline for unused
nodes and no space before the newline for active ones.
In current documentation, it is exactly opposite.
This commit fixes the documentation to match with source code.
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Usage: erl -profile_boot ...
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When FP exceptions are used, matherr() forces a fake FP exception,
which is interpreted as an error by the checking code after a math
routine call. This is wrong for several reasons:
- it's not necessary for error checking: when FP exceptions aren't
used, matherr() is a stub and no information is derived from it
being called
- it's not necessary for FPU maintenance: the FPU only needs to be
reprogrammed after an actual FP exception
- it causes false negatives: matherr() may be called even though
Erlang doesn't consider the case to be an error (exp() and pow()
underflows on Solaris for instance); with FP exceptions enabled
they are incorrectly considered errors
The fix is to remove all FP exception related code from matherr().
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* lukas/erts/non-smp-debug-fixes/OTP-13047:
erts: Fix incorrect non-smp debug assert
erts: std_alloc is not thread safe on non-smp
Conflicts:
erts/emulator/beam/erl_alloc_util.c
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* egil/fix-lock-order-trace-status:
erts: Fix lock-order trace status
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* egil/erts/fix-copy-share-heap:
erts: Fix comments
erts: Fix copy share with onheap messages
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Windows 8 and later have stronger admin checks which requires
erlang to run in privileged shells, ignore for now.
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on 32-bit, as the granularity of the literal bit vector
is super-alignment.
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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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* 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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This performs a number of cleanups in the FP exception code:
- inline the body of unmask_fpe_conditional() in its only caller,
then delete the duplicated and identical definitions of it
- start the big processor-specific block with a comment describing
the two functions that must be defined, then delete redundant
comments at all the mask_*() functions
- add a comment before fpe_sig_action() explaining exactly what
processor-specific action is required of it
- flatten #ifdef nesting in fpe_sig_action()
- move common code in the x86 unmask_fpe() and erts_restore_fpu()
function into a subroutine
- minor tweaks: drop a redundant L suffix on a 0, add a comment
after an #else, bump the size of a debug buffer,
There should be no change in behaviour from these changes.
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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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