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2025-03-13Place .xip sections into flashIan McIntyre
We added the `.xip` section to ensure that the reset handler and pre-init functions would be placed in flash. This commit lets users place other content into that section. `.xip` is intended for instructions. The runtime builder will place these instructions into the same load region as `.text`. However, there's no pre-`main` relocation. Aligning the `.xip` and the `.text` section produces more predictable behavior between GNU's ld and LLVM's lld.
2025-02-22Document workaround for registering exceptionsIan McIntyre
Given the way this package abuses cortex-m-rt, it's not immediately obvious how to register a Cortex-M exception handler with the `#[exception]` macro. This commit documents and demonstrates the workaround I use.
2022-12-01First commitIan McIntyre