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OTP-10702
Arguments to functions started with the -s option to erl were
converted to atoms with list_to_atom(binary_to_list(Bin)) and thus
were always seen as latin1 encoded.
For other arguments to erl the conversion (to string) would take into
account the file name translation mode (set with +fnl, +fnu or +fna
switch to erl) and try to convert using
unicode:characters_to_list/2. The reason behind this is that it must
be possible to give paths and filenames on the command line and get
the expected encoding.
With the same reasoning, this commit changes the behaviour for
arguments to functions started with the -s option to also take
into account the file name translation mode. The arguments are now
converted to atoms by
list_to_atom(unicode:characters_to_list(Bin,file:native_name_encoding())
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This is a workaround for init:restart.
The root problem is that delete/purge_module does not
clean up internal hipe bookkeeping (hipe_mfa_info's)
properly.
Symptom: Execution of deallocated beam code.
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Putenv and getenv needs to convert to the proper environment
strings in Unicode depending on platform and user settings for filename
encoding. Also erlexec needs to pass environment strings in an appropriate
way for kernel to pick up. All environment strings on the command
line, as well as home directory, is now passed in UTF8 on windows
and in whatever encoding you have on Unix, kernel tries to convert all
parameters and environments from UTF8 before making strings.
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An incorrect spec, rpc:yield/1, has been fixed.
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While at it, introduced a state() type and used it in some place.
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In embedded mode, all on_load handlers will be called after
loading all modules but before starting any servers. Therefore,
if an on_load handler calls any function in the code module that
calls the code server (such as code:priv_dir/1), there will be a
deadlock because the code server has not yet been started.
Fix this problem by invoking the on_load handlers after
having started most servers in the kernel application.
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* ks/erts:
hipe_bif0.c: Remove $Id$
erts/preloaded: Add types and specs
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An on_load function is supposed to return 'true' to indicate
that the module should be loaded, and 'false' if it should be
unloaded. But returning any other term, as well as causing an
exception, will also unload the module.
Since we don't like boolean values mixed with other values,
change the expected return value as follows:
* If 'ok' is returned, the module will remain loaded and become
callable.
* If any other value is returned (or an exception is generated),
the module will be unloaded. Also, if the returned value is
not an atom, send a warning message to the error_logger
(using error_logger:warning_msg/2).
The new interpretation of the return value means that an on_load
function can now directly return the return value from
erlang:load_nif/2.
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