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Explore the extension of GNU assembler to Synthesize CFI (SCFI) for hand-written assembly in this 48-minute conference talk from the Linux Plumbers Conference. Learn about the new command line option "--scfi[=all,none]" that allows users to invoke GAS' SCFI machinery. Discover the restrictions on hand-written assembly and the progress of the project, with x86_64 as the first target. Gain insights into potential future developments, including the "--scfi=inline" option for handling inline assembly. Engage in a discussion about the usefulness of this feature for the Linux kernel and explore possible extensions needed to accommodate the kernel's use of hand-written and inline assembly.
