vscode-cpptools/Extension/bin/linux.gcc.arm.json

{
  "defaults": [
    "--pack_alignment",
    "8",
    "-Dunix=1",
    "-D__unix__=1",
    "-D__linux__=1",
    "-D__arm__=1",
    "-D__ARM_32BIT_STATE=1",
    "-D__PTRDIFF_TYPE__=int",
    "-D__SIZE_TYPE__=unsigned int",
    "-D__WCHAR_TYPE__=long int"
  ],
  "defaults_op" :  "merge"
}