Module bootstrap::core::build_steps::llvm

Compilation of native dependencies like LLVM.

Native projects like LLVM unfortunately aren’t suited just yet for compilation in build scripts that Cargo has. This is because the compilation takes a very long time but also because we don’t want to compile LLVM 3 times as part of a normal bootstrap (we want it cached).

LLVM and compiler-rt are essentially just wired up to everything else to ensure that they’re always in place if needed.

Structs

• CrtBeginEnd
• HashStamp 🔒
• LdFlags 🔒
  Linker flags to pass to LLVM’s CMake invocation.
• Libunwind
• Lld
• Llvm
• LlvmResult
• Meta
• SanitizerRuntime
• Sanitizers

Enums

• LlvmBuildStatus

Functions

• check_llvm_version 🔒
• configure_cmake 🔒
• configure_llvm 🔒
• detect_llvm_sha 🔒
  This retrieves the LLVM sha we want to use, according to git history.
• get_var 🔒
• is_ci_llvm_available 🔒
  Returns whether the CI-found LLVM is currently usable.
• is_ci_llvm_modified 🔒
  Returns true if we’re running in CI with modified LLVM (and thus can’t download it)
• prebuilt_llvm_config
  This returns whether we’ve already previously built LLVM.
• supported_sanitizers 🔒
  Returns sanitizers available on a given target.