MCUBOOT_SWAP_STATUS_HOOKS provider-overlay seam - #2804
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… provider-agnostic) Signed-off-by: Artem Dovhal <artem.dovhal@infineon.com> Signed-off-by: INFINEON\DovhalA <artem.dovhal@infineon.com>
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| int swap_status_before_scratch_erase_hook(const struct boot_loader_state *state, | ||
| const struct flash_area *fap_pri, | ||
| const struct flash_area *fap_scratch, | ||
| struct boot_status *bs); |
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the plan is to deprecate swap using scratch, seems a bit superfluous?
| * Copyright (c) 2016-2019 JUUL Labs | ||
| * Copyright (c) 2019-2020 Arm Limited | ||
| * Copyright (c) 2025 Nordic Semiconductor ASA | ||
| * Copyright (c) 2026 Infineon Technologies AG |
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| * Copyright (c) 2026 Infineon Technologies AG |
same as below
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Adds a new hook family,
MCUBOOT_SWAP_STATUS_HOOKS, that lets a downstreamprovider take ownership of swap-status bookkeeping without editing the portable
core.
boot/stays provider-agnostic — this MR adds only the seam, no provider.What it does
BOOT_STATUS_HOOK_CALL(f, ret_default, ...)inboot_hooks.h, built onthe existing
DO_HOOK_CALL/HOOK_CALL_NOPmachinery, same as every otherhook family. When the gate is undefined it compiles to
ret_default— nocall, no link dependency, vanilla path unchanged.
boot_write_status(loader.c),swap_status_init(swap_misc.c), andswap_read_status_bytes(swap_offset/move/scratch). Two amend-style sites:before the scratch-area erase (swap_scratc
(loader.c
boot_swap_image).BOOT_STATUS_HOOK_REGULAR = INT_MINinstead of reusingBOOT_HOOK_REGULAR: that constant equals ndthese hooks legitimately return
BOOT_EFLASH— reusing it would misread areal flash error as "run the built-in path".
INT_MINcollides with nothing.built-in status-byte path runs only when the family is compiled out.
Notes
MCUBOOT_SWAP_STATUS_HOOKSundefined, behavior is identical to upstream by construction.#errorguard inbootutil_priv.hturns a feature-without-gatemisconfiguration into a compile-time failure.