gba.json

{
  "data-layout"         : "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64",
  "llvm-target"         : "arm-none-eabi",
  "ar"                  : "arm-none-eabi-ar",
  "linker"              : "arm-none-eabi-ld",
  "target-endian"       : "little",
  "target-pointer-width": "32",
  "target-c-int-width": "32",
  "linker-flavor": "ld",
  "cpu"                 : "arm7tdmi",
  "arch"                : "arm",
  "relocation-model"    : "static",
  "dynamic-linking"     : "false",
  "os"                  : "none",
  "executables"         : true,
  "no-compiler-rt"      : true,
  "no-default-libraries": true,
  "archive-format"      : "gnu",
  "pre-link-args"       : {"ld": [
    "-specs=gba.specs",
    "-lsysbase",
    "-lc"
  ]}
}