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iolist_size/1 would silently return a truncated result for iolists
whose size exceeded the word size. For example:
iolist(lists:duplicate(256, <<0:(1 bsl 24)/unit:8>>)).
would return 0 (instead of 4294967296 or 1 bsl 32).
Rewrite iolist_size/1 to accumulate the size in a bignum if
necessary and result the correct result.
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* ta/driver_entry-typo:
driver_entry: Remove gratuitous paren and fix typo
OTP-9254
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* sverker/enif_is_exception/OTP-9150:
add support for checking if an ERL_NIF_TERM is an exception
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* sverker/erts_printf-halfword:
erts_printf %be to print integers of size Eterm
Fix use of type BeamInstr in hipe_debug.c
Conflicts:
erts/emulator/hipe/hipe_debug.c
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Conflicts:
erts/vsn.mk
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* rickard/process-status/OTP-9197:
Fix thread unsafe access
Fix lost wakeup when process garbage collected by other
Only set status P_WAITING when needed
Add testcase for process_info() badarg bug
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Fix thread unsafe access to process status field introduced in OTP-9125.
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The status of a process was unnecessarily set to waiting before
the process was enqueued in a run queue. This bug was harmless
up until OTP-R14B01. In OTP-R14B02 erlang:hibernate/3 was fixed
(OTP-9125). After the introduction of OTP-9125, the previously
harmless process status bug sometimes caused erroneous badarg
exceptions from process_info().
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* ta/erts-unused-vars:
erts: Remove unused variables
OTP-9205
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Fix an error message by using an unsigned integer specifier as seen in
a tweet by @metabrew:
#erlang VM crashed with "no next heap size found: -2090496108,
offset 0", suddenly allocated all available RAM
Also correct mis-typed string formats in bif.c.
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Calling a BIF thaf is called as a function (such as process_info/{1,2})
would leave a non-zero value in c_p->cp, which would lead to
duplicate entries in the stacktrace.
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For some historical reason, the transformation of a func_info/3
instruction to the internal i_func_info/4 instruction is more
involved than it needs to be. Remove the gen_func_info() function
in the loader and use a simple transformation.
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* pan/valgrind_xml_log:
Make xml valgrind messages end up in xml log
OTP-9079
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* pan/system_info_procs_crash/OTP-9140:
Make erts_printf %T not recurse on C stack
Corrected fd_driver and cleaned up some really old code in win32/sys.[ch]
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Add the enif_is_exception function to allow callers to determine
whether an ERL_NIF_TERM represents an exception. (Currently the only
supported exception is badarg since only enif_make_badarg exists, but
this will likely be expanded in future releases.) This allows NIF code
to call other NIF functions that return ERL_NIF_TERM and properly
check to see if the returned terms are exceptions. Without the
enif_is_exception function, developers have to create their own means
of checking whether a function creates an exception, such as returning
boolean success/failure indicators or some other special value
indicating that an exception is in effect.
The declaration of enif_is_exception in erl_nif_api_funcs.h respects
the order of declarations required to keep compatibility on Windows.
Add a new test to verify the operation of enif_is_exception.
Modify the erl_nif man page to add a description of enif_is_exception
and also to clarify the requirements of calling the enif_make_badarg
function. If code calls enif_make_badarg, the env passed in gets set
with exception information and so the return value of the calling
function MUST be the badarg term returned from enif_make_badarg. Also
clarify that the result of enif_make_badarg may be passed only to
enif_is_exception and not to any other NIF API functions.
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Existing %bp to print pointer size integers does not work in halfword
emulator to print Eterm size integers.
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* pg/hipe-remove-constants-pool:
Remove hipe constants pool
OTP-9128
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* bjorn/binary-overflow/OTP-9117:
Fix 18 exabyte memory allocation failure
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* pg/fix-hibernate-with-hipe:
Update copyright years
Fix NULL-free bug in hibernate on debug emulator
Fix several bugs related to hibernate/3 and HiPE
Conflicts:
erts/emulator/test/hibernate_SUITE.erl
OTP-9125
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* sverker/valgrind-new-suppressions:
Make halfword emulator with valgrind target allocate low memory
Add erts_alloc_permanent_cache_aligned to supress valgrind
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The new_binary() function takes a size argument that is an
int. In the 64-bit emulator (sizeof(int) == 4, sizeof(Uint) == 8),
any sizes >= 0x8000000 become 0xffffffff80000000 and above and
triggers a memory allocation failure.
Change the type of the size argument to Uint, and change any
callers that cast the argument to an int.
Correction-by: Jon Meredith
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The call_fun() function in the BEAM emulator is supposed to
to put the fun term in the x register following the actual arguments
and environment for the fun. But if the fun is not loaded and
a call to the error_handler:undefined_lambda/3 function is set up,
the x(3) register will not be initialized.
The lack of initialization is very unlikely to cause a problem
in practice, because all of the following things must happen:
1) An unloaded fun must be called (i.e. the fun must have
been received from another node or from a file or dets table).
2) The process must be scheduled out before the call to the
error_handler:undefined_lambda/3 function can take place.
3) The process must be garbage collected before the process
is scheduled in.
4) The x(3) register must contain a stale cons or box pointer
that happens to point into the the heap of the currently
executing process. (Because of the literal pool, the GC will
never copy anything that is outside of the heap.)
I was not able to write a test case that would force an
emulator crash.
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Fixing miscellaneous "things" "detected" by dialyzer.
Also updated end date for a number of erts files.
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Ease the valgrind supression of memory that are permanently
allocated and then aligned up to cache line.
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same thread
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* pan/halfword-tmp-heap-fixes/OTP-8332:
Fix assymetric (Un)UseTmpHeap in erl_process.c
Conflicts:
erts/emulator/beam/beam_emu.c
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* bjorn/erts/crash-dumps/OTP-9057:
Don't dump the contents of ordered_set ets tables
Write the value "Time left" for BIF timers as an unsigned integer
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* rickard/unbound/OTP-9056:
Allow bindtype unbound when no cpu topology is available
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* rickard/temp_alloc_check/OTP-9028:
Verify that temp allocated memory is released
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* rickard/mtx-destroy-ebusy/OTP-9009:
Send warning instead of abort on EBUSY from pthread_mutex_destroy
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Due to a bug in glibc the runtime system could abort
while trying to destroy a mutex. The runtime system
will now issue a warning instead of aborting.
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* rickard/poll-wake/OTP-9019:
Simplify erts_poll_wait() wakeup logic
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