Compiler: dwarf die for function static variable

I presume you mean a static variable that is defined inside a function, and not at file scope.

A static variable is yet another DW_TAG_variable inside the function.  The only difference is the DW_AT_location attribute.

Consider this contrived function ...

int fxn(int argument_variable)
{
   static int static_variable = 0;
   int local_variable = argument_variable;

   ++static_variable;
   return static_variable + local_variable;
}

You don't say which TI compiler you use.  For now, I presume you use the TI ARM compiler.  These commands build it, then use the OFD utility to capture the .debug_info Dwarf information in a text file named dw.txt.

% armcl -s --opt_level=off -mv7m3 file.c
% armofd -g --obj_display=none --dwarf_display=none,dinfo file.obj > dw.txt

Then inspect dw.txt and find these lines ...

    000000c2   4       DW_TAG_variable (.data)
    000000c3              DW_AT_location       DW_OP_addr 00000000
    000000c9              DW_AT_name           static_variable
    000000dd              DW_AT_TI_symbol_name static_variable$1
    000000ef   1       DW_TAG_formal_parameter (.text)
    000000f0              DW_AT_location       DW_OP_reg0
    000000f2              DW_AT_name           argument_variable
    00000108              DW_AT_TI_symbol_name argument_variable
    0000011a   4       DW_TAG_variable (.text)
    0000011b              DW_AT_location       DW_OP_breg13 0
    0000011e              DW_AT_name           argument_variable
    00000134              DW_AT_TI_symbol_name argument_variable
    00000146   4       DW_TAG_variable (.text)
    00000147              DW_AT_location       DW_OP_breg13 4
    0000014a              DW_AT_name           local_variable
    0000015d              DW_AT_TI_symbol_name local_variable

They are all similar, except for the DW_AT_location attribute.

Thanks and regards,

-George