Update the padding sequence so that the gaps
are padded after all the regions are merged.
This avoids overwriting active regions and
serializes the process.
NRF Softdevice hex file can be in chunks.
Make sure we account for the space where the bootloader resides
by including all the chunks within the end of rom marker. This will
clearly mark out the initial bootloader region.
### Description
The `mbed compile -S` command is suposed to indicate what targets
support what toolchains. The command was printing out things that
don't make sense, like `GCC_CR` and things that make sense, but are
not offiially supported yet, like `ARMC6`. This PR fixes all of that.
### Pull request type
[x] Fix
[ ] Refactor
[ ] Target update
[ ] Functionality change
[ ] Breaking change
### Description
Traceback:
```
Merging Regions
Filling region bootloader with mbed-cloud-client-example/mbed-os/features/FEATURE_BOOTLOADER/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/TARGET_FRDM/mbed-bootloader-k64f-block_device-sotp-v3_4_0.bin
Padding region bootloader with 0x9a4 bytes
Traceback (most recent call last):
File "mbed-cloud-client-example/mbed-os/tools/make.py", line 293, in <module>
ignore=options.ignore
File "mbed-cloud-client-example/mbed-os/tools/build_api.py", line 548, in build_project
merge_region_list(region_list, res, notify)
File "mbed-cloud-client-example/mbed-os/tools/build_api.py", line 423, in merge_region_list
_fill_header(region_list, region).tofile(header_filename, format='hex')
File "mbed-cloud-client-example/mbed-os/tools/build_api.py", line 380, in _fill_header
header.puts(start, struct.pack(fmt, time()))
struct.error: required argument is not an integer
```
reason: `time()` returns a float. So the fix is to force it to be an `int`.
### Pull request type
[x] Fix
[ ] Refactor
[ ] Target update
[ ] Functionality change
[ ] Breaking change
### Description
The `mbed compile` would traceback when no linker script is found.
This PR changes that behavior to make that into a NotSupportedException,
which has decent user behavior.
Fixes#7723
### Pull request type
[x] Fix
[ ] Refactor
[ ] Target update
[ ] Functionality change
[ ] Breaking change
- Change the default file format to binary for all targets, even though some targets need hex as app format, updater always needs bin for now
- Unify the file name generation from generator side and usage side for the update bin