llvm-project

f0b58c16 - [libc][docs][NFC] Expand entrypoints technical reference (#4) (#188255)

[libc][docs][NFC] Expand entrypoints technical reference (#4) (#188255) Expanded entrypoints.rst with details about definitions, registration rules, and the lifecycle of an entrypoint. Updated multiple documents to remove redundant technical details and link to the centralized entrypoints reference: - libc/docs/dev/cmake_build_rules.rst - libc/docs/dev/implementation_standard.rst - libc/docs/porting.rst - libc/docs/dev/source_tree_layout.rst