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Title=__ld_data_var_name_end
Index=__data_var_name_start

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This symbol is resolved to the address of the user-defined symbol
<CODE>__data_var_name_start</CODE>, plus the length in bytes of the data
variable name, plus 1 for the zero byte at the beginning. If no data variable
is specified for the program, an error is reported. The symbol
<CODE>__data_var_name_start</CODE> must be defined and exported by the
program.
