diff options
Diffstat (limited to 'config.toml.example')
| -rw-r--r-- | config.toml.example | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/config.toml.example b/config.toml.example index b3284050f..a46813e4d 100644 --- a/config.toml.example +++ b/config.toml.example @@ -291,6 +291,10 @@ changelog-seen = 2 # on this runtime, such as `-C profile-generate` or `-C instrument-coverage`). #profiler = false +# Use the optimized LLVM C intrinsics for `compiler_builtins`, rather than Rust intrinsics. +# Requires the LLVM submodule to be managed by bootstrap (i.e. not external). +#optimized-compiler-builtins = false + # Indicates whether the native libraries linked into Cargo will be statically # linked or not. #cargo-native-static = false @@ -521,6 +525,12 @@ changelog-seen = 2 # A descriptive string to be appended to `rustc --version` output, which is # also used in places like debuginfo `DW_AT_producer`. This may be useful for # supplementary build information, like distro-specific package versions. +# +# The Rust compiler will differentiate between versions of itself, including +# based on this string, which means that if you wish to be compatible with +# upstream Rust you need to set this to "". However, note that if you are not +# actually compatible -- for example if you've backported patches that change +# behavior -- this may lead to miscompilations or other bugs. #description = <none> (string) # The root location of the musl installation directory. The library directory @@ -628,6 +638,11 @@ changelog-seen = 2 # If an explicit setting is given, it will be used for all parts of the codebase. #new-symbol-mangling = true|false (see comment) +# Select LTO mode that will be used for compiling rustc. By default, thin local LTO +# (LTO within a single crate) is used (like for any Rust crate). You can also select +# "thin" or "fat" to apply Thin/Fat LTO to the `rustc_driver` dylib. +#lto = "thin-local" + # ============================================================================= # Options for specific targets # @@ -666,6 +681,10 @@ changelog-seen = 2 # target. #llvm-config = <none> (path) +# Override detection of whether this is a Rust-patched LLVM. This would be used +# in conjunction with either an llvm-config or build.submodules = false. +#llvm-has-rust-patches = if llvm-config { false } else { true } + # Normally the build system can find LLVM's FileCheck utility, but if # not, you can specify an explicit file name for it. #llvm-filecheck = "/path/to/llvm-version/bin/FileCheck" @@ -721,6 +740,10 @@ changelog-seen = 2 # probably don't want to use this. #qemu-rootfs = <none> (path) +# Skip building the `std` library for this target. Enabled by default for +# target triples containing `-none`, `nvptx`, `switch`, or `-uefi`. +#no-std = <platform-specific> (bool) + # ============================================================================= # Distribution options # |