[WIP] Implement CFI #280

Job	Run time
linux-x86-ci-generated	14s
linux-x86-deny	48s
linux-native-ci-asm (ubuntu-latest)	1m 13s
linux-native-ci-asm (ubuntu-24.04-arm)	1m 11s
linux-native-ci-asm-chaos (ubuntu-24.04-arm)	1m 8s
linux-arm-ci-asm	2m 10s
linux-x86-ci (ubuntu-latest)	1m 11s
macos-x86-ci-asm	1m 4s
linux-native-test-suite (ubuntu-latest)	3m 43s
linux-x86-ci (ubuntu-24.04-arm)	1m 9s
linux-native-test-suite (ubuntu-24.04-arm)	3m 23s
linux-native-ci-asm-chaos (ubuntu-latest)	1m 18s
windows-x86-ci-asm	2m 52s
linux-native-test-spawn (ubuntu-24.04-arm)	1m 38s
linux-native-test-spawn (ubuntu-latest)	1m 40s
linux-arm-test-suite	6m 7s
linux-fuzz	4m 19s
	35m 8s

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