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 (registration required) various documents highlighting:

System Workbench for STM32

Printf support for semihosting/ITM debugging for float variables.


Hello all,

Looking at this problem, we just discover it was probably due to a small glitch in the linker script provided by ST. There was, near the beginning of the fine a line that reads
_estack = 0x2000FFFF;    /* end of RAM */
This should be, in fact, a byte higher, just after the end of the RAM area, that is:
_estack = 0x20010000;    /* end of RAM */

The problem is that the original setup creates a stack pointer that is not 8-byte aligned, thus causing problems when storing double values in the stack or passing them as parameters.

Editing the linker script shoul correct the problem, so keep us informed. Anyway the correction will be in the next update, due beginning of August.