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SW4STM32 and SW4Linux fully supports the STM32MP1 asymmetric multicore Cortex/A7+M4 MPUs

   With System Workbench for Linux, Embedded Linux on the STM32MP1 family of MPUs from ST was never as simple to build and maintain, even for newcomers in the Linux world.
And, if you install System Workbench for Linux in System Workbench for STM32 you can seamlessly develop and debug asymmetric applications running partly on Linux, partly on the Cortex-M4.
You can get more information from the ac6-tools website and download two short videos (registration required) highlighting:

System Workbench for STM32


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Hex, bin and ELF Files

(1) in the build directory you will find sub-project make files (particularly in each folder); that’s all automatically generated and you don’t really need to worry. Outside of the build folder there’s one xml file and a couple of “hidden” dot files with setting (.cproject, .project); don’t mess with them directly, it’s not helpful unless you’re really in a jam, trust me rolleyes

(2) there should be basically Debug and Release build folders, in the root there is a your bin,hex, and elf... they’re all different representations of the output (elf has all the detail, bin and hex represent the same but compiled program but with stuff stripped - obviously one is binary and one is ascii text representing that binary as hexadecimal)

eg:
Generating hex and Printing size information:
arm-none-eabi-objcopy -O ihex "EthernetUDPTestFreeRTOS.elf" "EthernetUDPTestFreeRTOS.hex"
arm-none-eabi-size "EthernetUDPTestFreeRTOS.elf"
text data bss dec hex filename
35736 32 39320 75088 12550 EthernetUDPTestFreeRTOS.elf

the elf file is the output from the link step and the arm-none-eabi-objcopy makes the hex file from that

you don’t need to use the ST-Link program if you’re in SW4STM32; the functionality is right there when you begin debugging it will download the binary via your ST-Link device