Fix ARM panic when a code section has no mapping symbols#361
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Signed-off-by: Sai Asish Y <say.apm35@gmail.com>
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get_mapping_symbolsinserts an entry intodisasm_modesfor every code section, even when no$a/$t/$dmapping symbol points into it, soscan_instructions_internalgot an empty slice fromdisasm_modes.get(..)instead ofNoneand skipped thefallback_mappingspath, then indexed the empty slice and panicked. This treats the empty case the same as a missing entry so it falls back to ARM mode. Fixes #352.