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Merge #1220

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1220: examples/stm32wb: fix linker script. r=Dirbaio a=Dirbaio

cortex-m-rt 0.7.2 now enforces the stack is 8-byte aligned. Stack is placed at `ORIGIN(RAM) + LENGTH(RAM)` by default, which wasn't 8-byte-aligned. See https://github.com/rust-embedded/cortex-m/discussions/469

ST trims 8 bytes from start of RAM, and uses the whole 192kb, so let's just copy that:

bceb1dae09/Drivers/CMSIS/Device/ST/STM32WBxx/Source/Templates/gcc/linker/stm32wb55xx_flash_cm4.ld (L48)

bors r+

Co-authored-by: Dario Nieuwenhuis <dirbaio@dirbaio.net>
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bors[bot] 2023-02-19 22:03:13 +00:00 committed by GitHub
commit 4fd59f26fb
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examples/stm32wb/memory.x
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@ -6,7 +6,7 @@
MEMORY MEMORY
{ {
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 256K FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 256K
RAM (xrw) : ORIGIN = 0x20000004, LENGTH = 191K RAM (xrw) : ORIGIN = 0x20000008, LENGTH = 0x2FFF8
RAM_SHARED (xrw) : ORIGIN = 0x20030000, LENGTH = 10K RAM_SHARED (xrw) : ORIGIN = 0x20030000, LENGTH = 10K
} }