[Bug tdep/26362] [aarch64] gdb/utils.c:671: internal-error: virtual memory exhausted: can't allocate 187647121162241 bytes

["vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=26362

--- Comment #16 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Luis Machado from comment #15)
> Thanks for the explanation Andrew.
> 
> For aarch64-linux, this is also a change in behavior, as the pointer size is
> 8 bytes whereas the previous size was 4 bytes.
> 
> Is the assumption that the size is a pointer size correct? Is that what the
> standard says or is something GDB assumes?

The standard says:
...
The string type entry may have a DW_AT_string_length attribute whose value is a
location description yielding the location where the length of the string is
stored in the program. The string type entry may also have a DW_AT_byte_size
attribute or DW_AT_bit_size attribute, whose value (see Section 2.21) is the
size of the data to be retrieved from the location referenced by the string
length attribute. If no (byte or bit) size attribute is present, the size of
the data to be retrieved is the same as the size of an address on the target
machine.
...

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