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to obtain match specs
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'on_load' is a call trace.
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also simplified the interface to to run PAM from trace
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All 'EXIT' and monitor messages are sent from 'system'
Timeouts are "sent" from 'clock_service'
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and non-call-trace.
This is the easy way out to avoid difficult locking
scenarios when accessing tracing flags on another process.
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for enable_trace and disable_trace operations.
Instead seize needed locks while updating trace flags.
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with uppercase for constants
and why not call them 'RESTART' and 'PAUSE' as the API.
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as is trips up my editor symbol tagging.
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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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* 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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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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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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This is needed as otherwise messages from system_profile
will not be guaranteed to arrive before trace delivered.
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