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56e34b3add
This means firmware's stack shouldn't be accessible to programs running in app_mode. It also means we don't need to take special care of secure_ctx which can now be an ordinary stack variable. Nonetheless we zero out secure_ctx after final use and inline some assembler to zero out the entire fw_ram after use, just before switching to app_mode. Signed-off-by: Daniel Lublin <daniel@lublin.se> |
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