Implement read-only buffer allocation #159

Job	Run time
build-test-on-arm32	3m 10s
build-test-on-loongarch64	1m 48s
build-test-on-aarch64	2m 36s
build-test-on-riscv32	2m 25s
build-test-on-armt2	3m 8s
build-test-on-riscv32-extensions	2m 20s
build-test-on-riscv64	2m 40s
build-test-on-riscv64-extensions	2m 26s
build-test-on-s390x	2m 7s
build-test-on-x64	17s
build-test-on-x86	36s
	23m 33s

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