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Hard to unit test now when it takes a magic HipeLoaderState
as argument. All hipe testing should be enough exercise for
code:make_stub_module.
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if hipe is disabled.
Makes the code simpler to just ifdef away
a lot of hipe stuff.
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Symptom: Got ra==NULL at nsp==nsp_end
when running basic_SUITE:basic_arith on arm
why has this not been detected before?
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* Use erts_alloc(ERTS_ALC_T_HIPE_EXEC,_)
* Each module has its own trampolines
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* Use erts_alloc(ERTS_ALC_T_HIPE_EXEC,_)
* Each module has its own trampolines
* Stubs do not use trampolines,
they do their own long jumps.
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For non-amd64 it's a "normal" allocator with a
wrapper around mseg_alloc to call mprotect(PROT_EXEC).
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creation and destruction.
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from hipe_purge_module.
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that is only called once.
Basically switch hipe_free_loader_state and hipe_loader_state_dtor.
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to not be transformed to local calls.
code_SUITE:uprade still fails if run with compile option
{hipe,to_llvm}
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when failing to load native code.
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Did not work with purge and made worse by new purge strategy.
Did yield terrible performance when fun thing is created *before*
fun code is loaded. Like when receiving not yet loaded fun
from other node. The cached 'native_address' in ErlFunThing
will not be updated leading to mode switch and error_handler
being called for every call to the fun from native code.
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by introducing hipe_bifs:commit_patch_load/1
that creates the HipeModule.
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to get a nice SIGILL crash.
For x86 and x86_64 only.
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This is part of commit 1bd508921dd93086b05e7d0038b816b36c421d86.
I did not include the fun-checking as we have a new purge strategy
for funs in OTP 20. That remains to be solved some other way for hipe.
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Just like the BEAM loader state (as returned by
erlang:prepare_loading/2), the HiPE loader state is contained in a magic
binary.
Eventually, we will separate HiPE loading into a prepare and a finalise
phase, like the BEAM loader, where the prepare phase will be implemented
by hipe_unified_loader and the finalise phase be implemented in C by
hipe_load.c and beam_load.c, making prepare side-effect free and
finalise atomic. The finalise phase will be exposed through the
erlang:finish_loading/1 API, just like the BEAM loader, as this will
allow HiPE and BEAM modules to be mixed in the same atomic "commit".
The usage of a loader state makes it easier to keep track of all
resources allocated during loading, and will not only make it easy to
prevent leaks when hipe_unified_loader crashes, but also paves the way
for proper, leak-free, unloading of HiPE modules.
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Conflicts:
OTP_VERSION
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Running 'dbg:fun2ms(fun([]) -> return_trace() end' resulted in an error
"dbg:fun2ms requires fun with single variable or list parameter"
But the empty list is actually a list and it is a valid value as a
match-spec head (matching on arity-0 functions).
Although its practical use is questionable this commit eliminates a
small limitation of ms_transform which is not present in the match-spec
grammar.
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Add system_info(atom_limit) to provide a way to retrieve the maximum
number of atoms allowed. Add tests and documentation for it too.
Also split system_info_SUITE:start_node/2 to start_node_ets/2 and
start_node_atm/2 to avoid code duplication.
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* hans/ssh/harmful_badmatch/OTP-13966:
ssh: Removed matching of 'ok' after send which could cause error reports
ssh: ssh_protocol_SUITE test for handling of illegal info_lines
ssh: property test case for illegal infoline and close This tests an illegal client that sends an info line and closes 'immediatly'.
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This tests an illegal client that sends an info line and closes 'immediatly'.
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This reverts commit 52fae83743a6e84d719f4f82fe45e6e0efdbd6f0:
Check libsctp for sctp funcs in configure.in
Call AC_CHECK_LIB before calling AC_CHECK_FUNCS to check for functions in libsctp.
Otherwise AC_CHECK_FUNCS will not link with libsctp to see if function exists.
Reverting to the old behaviour of not checking for libsctp before checking for
sctp functions. Then it works on Linux by loading libsctp and looking up the
symbols i runtime, and it works on FreeBSD since there is no separate libsctp
to link against - the functions are part of the default system libraries.
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* maint:
dialyzer: Fix opaque bug
dialyzer: Fix opaque bugs
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* hasse/dialyzer/fix_opaque_bugs/OTP-13693:
dialyzer: Fix opaque bug
dialyzer: Fix opaque bugs
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* lukas/erts/beam_func_info_struct/OTP-13821:
erts: Fix some dtrace related compile issues
erts: Refactor rename Export.code[] to Export.beam[]
erts: Improve printouts for some etp commands
erts: Fix erts_debug:df with new func_info
erts: Refactor find_function_from_pc to return MFA
erts: Refactor out func_info into struct
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and remove outdated min size adjustment.
The is similar to lost commit 31bc414dc9639ccf94f9011ed32
except we now assume and assert strict size equality.
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to avoid scary merge errors.
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Specifically etp-stacktrace/stackdump/process-info have been changed
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This commit adds two new structs to be used to represent
erlang code in erts.
ErtsCodeInfo is used to describe the i_func_info header
that is part of all Export entries and the prelude of
each function. This replaces all the BeamInstr * that
were previously used to point to these locations.
After this change the code should never use BeamInstr *
with offsets to figure out different parts of the
func_info header.
ErtsCodeMFA is a struct that is used to descripe a
MFA in code. It is used within ErtsCodeInfo and also
in Process->current.
All function that previously took Eterm * or BeamInstr *
to identify a MFA now use the ErtsCodeMFA or ErtsCodeInfo
where appropriate.
The code has been tested to work when adding a new field to the
ErtsCodeInfo struct, but some updates are needed in ops.tab to
make it work.
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* maint:
Update Dialyzer documentation
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* xsipewe/dialyzer/doc_cleanup:
Update Dialyzer documentation
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Having a consistent whitespace usage in the source makes it easier for
future contributors to send patches. This commit does the following:
* Replace tabs with spaces
* Kill trailing whitespace
* Disable indent-tabs-mode for erlang.el to prevent tabs from creeping
in
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