* Hi all, I'm trying to compile a very basic `stm32h7xx_hal` blinky example to get started with my Ardunio GIGA Wifi R1 board (it has a Cortex M4/M7 chip STM32H747XI, same as the Portenta H7).

The ELF file,

```
-> % /opt/homebrew/bin/arm-none-eabi-readelf -h target/thumbv7em-none-eabihf/release/stm32_blink                
ELF Header:
  Magic:   7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00 
  Class:                             ELF32
  Data:                              2's complement, little endian
  Version:                           1 (current)
  OS/ABI:                            UNIX - System V
  ABI Version:                       0
  Type:                              EXEC (Executable file)
  Machine:                           ARM
  Version:                           0x1
  Entry point address:               0x8000299
  Start of program headers:          52 (bytes into file)
  Start of section headers:          428308 (bytes into file)
  Flags:                             0x5000400, Version5 EABI, hard-float ABI
  Size of this header:               52 (bytes)
  Size of program headers:           32 (bytes)
  Number of program headers:         5
  Size of section headers:           40 (bytes)
  Number of section headers:         26
  Section header string table index: 24
```

However,`arm-none-eabi-objcopy -v -O binary SOURCE.elf Output.bin` creates a 2KB file when the ELF is 429KB.