The files mentioned are attached. The C source file.c defines and uses this global variable.

volatile int special_global;

Code in the linker command file armlink.cmd tries to control how this variable is allocated.

    special_output_section_name
    {
       *(.common:special_global)   /* line 12 */
    } > D_MEM

But it doesn't work.

% armcl -mv7r5 --code_state=16 file.c -z -o file.out -l rtsv7R4_T_be_eabi.lib -m file.map armlink.cmd
<Linking>
"armlink.cmd", line 12: warning: no matching section

Please supply some method for controlling the allocation of a common variable like special_global.