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This complements 933e701 (OTP-10209). Without this patch the test cases
"in_guard/1" and "coerce_to_float/1" in bs_construct_SUITE fail.
The added lines in bs_construct_SUITE cover all branches that were not
covered before (small and big numbers if BIT_OFFSET(erts_bin_offset) != 0).
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* sverk/bs_construct_SUITE-outofmem:
erts: Limit memory usage of bs_construct_SUITE:huge_binary
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depending on the amount of free memory on the host
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Code such as the following should cause an exception:
Bin = <<0:1>>,
<<Bin/binary,...>>
(Because the "binary" type implies that the binary must have a
size in bits that is a multiple of 8.)
Depending on the binary, either no exception was thrown or the
wrong exception was thrown (because c_p->freason was not set).
Noticed-by: Adam Rutkowski
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Constructing binaries using the bit syntax with literals sizes
that would not fit in an Uint will either cause an emulator crash
or the loading to be aborted.
Use the new TAG_o tag introduced in the previous commit to make sure
that the attempt to create huge binary literals will generate a
system_limit exception at run-time.
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Attempting to construct <<0:((1 bsl 32)-1)>>, the largest bitstring
allowed in a 32 bit emulator, would cause an emulator crash because
of integer overflow.
Fix the problem by using an Uint64 to avoid integer overflow.
Do not attempt to handle construction of <<0:((1 bsl 64)-1>> in
a 64-bit emulator, because that will certainly cause the emulator
to terminate anyway because of insufficient memory.
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<<A:0>> will always produce an empty binary, regardless of the
type of A. The bug is in the run-time system. Fix it so that a
non-numeric value for A will cause a badarg exception.
Reported-by: Zvi
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