b37a607933
Previously, we required baremetal runtimes to implement an undocumented `__aarch64_sme_accessible` hook to check if SME is available (as checking CPU features may vary across targets). This allowed us to provide a generic `__arm_sme_state` implementation but caused some friction for toolchains that depend on compiler-rt. This patch instead removes the implementation of `__arm_sme_state` for baremetal. This makes it the responsibility of the runtime (e.g. libc) to provide this function for baremetal targets. The requirements of this function are documented in the AAPCS64: https://github.com/ARM-software/abi-aa/blob/main/aapcs64/aapcs64.rst#811__arm_sme_state All other SME ABI rountines are still provided by compiler-rt.
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================