dfu bootloader with singlebank patch too large

Question

I am unable to compile this to fit into the allocated bootloader space.
Has anyone been able to compile this patched version of the signlebankdfu-ble
with nrf sdk v6 so that if fits in the allocated bootloader rom space? 
 If so please share your github repo :) 
 Otherwise what is the procedure to enlarge the bootloader rom space.
I have tried to do this by changing the keil bootloader rom space / size and
the dfu_types.h / pstorage_platform.h
But I have failed. Enlarging the bootloader rom space only causes the compiled bootloader to require even more rom space. 
 I am trying to compile the 
 github.com/.../nRF51-SingleBankDFU-BLE 
 
 with nrf51 sdk v6 
 I have migrated from nrf51 v5.2 to nrf51 v6.0 as described in the s110 v7 migration document. 
 I have added the following sd_softdevice_enable() 
 sd_ble_gap_enable(p_ble_enable_params);
sd_ble_gap_address_get(&addr);
sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_NONE, &addr);
 
 and used the dfu_types.h and pstorage_platform.h from the
nrf51 sdk v6 device_firmware_updates dfu bootloader example. 
 and changed the ROM start address and size specified in keil
0x3C000 0x4000

tim · Accepted Answer

Please see for the bootloader migrated to v6 
 github.com/.../master_v6 
 
 However the following change to enabling installing a bootable application using nrfjprog causes the bootloader to exceed the size allowed. 
 bootloader_util_arm.c

-uint8_t m_boot_settings[CODE_PAGE_SIZE] __attribute__((at(BOOTLOADER_SETTINGS_ADDRESS))) __attribute__((used)); 
-uint32_t m_uicr_bootloader_start_address __attribute__((at(NRF_UICR_BOOT_START_ADDRESS))) = BOOTLOADER_REGION_START; 
+const uint8_t m_boot_settings[CODE_PAGE_SIZE] __attribute__((at(BOOTLOADER_SETTINGS_ADDRESS))) __attribute__((used)) = {BANK_VALID_APP}; 
+const uint32_t m_uicr_bootloader_start_address __attribute__((at(NRF_UICR_BOOT_START_ADDRESS))) = BOOTLOADER_REGION_START; 
 
 To see the change compare branch master_v6 and branch jtag_bootable_v6