def FlashRomImage()

in ArmVirtPkg/PlatformCI/PlatformBuild.py [0:0]
37 lines of code
8 McCabe index (conditional complexity)

    def FlashRomImage(self):
        VirtualDrive = os.path.join(self.env.GetValue(
            "BUILD_OUTPUT_BASE"), "VirtualDrive")
        os.makedirs(VirtualDrive, exist_ok=True)
        OutputPath_FV = os.path.join(
            self.env.GetValue("BUILD_OUTPUT_BASE"), "FV")
        Built_FV = os.path.join(OutputPath_FV, "QEMU_EFI.fd")

        # pad fd to 64mb
        with open(Built_FV, "ab") as fvfile:
            fvfile.seek(0, os.SEEK_END)
            additional = b'\0' * ((64 * 1024 * 1024)-fvfile.tell())
            fvfile.write(additional)

        # QEMU must be on that path

        # Unique Command and Args parameters per ARCH
        if (self.env.GetValue("TARGET_ARCH").upper() == "AARCH64"):
            cmd = "qemu-system-aarch64"
            args = "-M virt"
            args += " -cpu cortex-a57"                                          # emulate cpu
        elif(self.env.GetValue("TARGET_ARCH").upper() == "ARM"):
            cmd = "qemu-system-arm"
            args = "-M virt"
            args += " -cpu cortex-a15"                                          # emulate cpu
        else:
            raise NotImplementedError()

        # Common Args
        args += " -pflash " + Built_FV                                     # path to fw
        args += " -m 1024"                                                  # 1gb memory
        # turn off network
        args += " -net none"
        # Serial messages out
        args += " -serial stdio"
        # Mount disk with startup.nsh
        args += f" -drive file=fat:rw:{VirtualDrive},format=raw,media=disk"

        # Conditional Args
        if (self.env.GetValue("QEMU_HEADLESS").upper() == "TRUE"):
            args += " -display none"  # no graphics

        if (self.env.GetValue("MAKE_STARTUP_NSH").upper() == "TRUE"):
            f = open(os.path.join(VirtualDrive, "startup.nsh"), "w")
            f.write("BOOT SUCCESS !!! \n")
            # add commands here
            f.write("reset -s\n")
            f.close()

        ret = RunCmd(cmd, args)

        if ret == 0xc0000005:
            # for some reason getting a c0000005 on successful return
            return 0

        return ret