Abstract: Embodiments include methods, systems, and computer-readable medium directed to a compiler for compiling a portable binary image. The compiler compiles a program source code into a first executable specific to a first instruction set architecture (ISA). The compiler then compiles the program source code into a code generator output. Additionally the compiler combines the executable and the code generator output into a portable binary image. At runtime on a target device, the code generator output can be compiled into a second executable in accordance to a second ISA specific to the target device if the originally compiled first executable specific to the first ISA is not executable on the target device.