diff options
Diffstat (limited to 'config.toml')
-rw-r--r-- | config.toml | 604 |
1 files changed, 500 insertions, 104 deletions
diff --git a/config.toml b/config.toml index 864f3d808db1..218393a349f6 100644 --- a/config.toml +++ b/config.toml @@ -9,24 +9,74 @@ # a custom configuration file can also be specified with `--config` to the build # system. +# Keeps track of the last version of `x.py` used. +# If it does not match the version that is currently running, +# `x.py` will prompt you to update it and read the changelog. +# See `src/bootstrap/CHANGELOG.md` for more information. +changelog-seen = 2 + +# ============================================================================= +# Global Settings +# ============================================================================= + +# Use different pre-set defaults than the global defaults. +# +# See `src/bootstrap/defaults` for more information. +# Note that this has no default value (x.py uses the defaults in `config.toml.example`). +#profile = <none> + # ============================================================================= # Tweaking how LLVM is compiled # ============================================================================= [llvm] -# Indicates whether rustc will support compilation with LLVM -# note: rustc does not compile without LLVM at the moment -#enabled = true +# Whether to use Rust CI built LLVM instead of locally building it. +# +# Unless you're developing for a target where Rust CI doesn't build a compiler +# toolchain or changing LLVM locally, you probably want to set this to true. +# +# This is false by default so that distributions don't unexpectedly download +# LLVM from the internet. +# +# All tier 1 targets are currently supported; set this to `"if-available"` if +# you are not sure whether you're on a tier 1 target. +# +# We also currently only support this when building LLVM for the build triple. +# +# Note that many of the LLVM options are not currently supported for +# downloading. Currently only the "assertions" option can be toggled. +#download-ci-llvm = false + +# Indicates whether LLVM rebuild should be skipped when running bootstrap. If +# this is `false` then the compiler's LLVM will be rebuilt whenever the built +# version doesn't have the correct hash. If it is `true` then LLVM will never +# be rebuilt. The default value is `false`. +#skip-rebuild = false # Indicates whether the LLVM build is a Release or Debug build #optimize = true +# Indicates whether LLVM should be built with ThinLTO. Note that this will +# only succeed if you use clang, lld, llvm-ar, and llvm-ranlib in your C/C++ +# toolchain (see the `cc`, `cxx`, `linker`, `ar`, and `ranlib` options below). +# More info at: https://clang.llvm.org/docs/ThinLTO.html#clang-bootstrap +#thin-lto = false + # Indicates whether an LLVM Release build should include debug info #release-debuginfo = false # Indicates whether the LLVM assertions are enabled or not #assertions = false +# Indicates whether the LLVM testsuite is enabled in the build or not. Does +# not execute the tests as part of the build as part of x.py build et al, +# just makes it possible to do `ninja check-llvm` in the staged LLVM build +# directory when doing LLVM development as part of Rust development. +#tests = false + +# Indicates whether the LLVM plugin is enabled or not +#plugins = false + # Indicates whether ccache is used when building LLVM #ccache = false # or alternatively ... @@ -35,16 +85,14 @@ # If an external LLVM root is specified, we automatically check the version by # default to make sure it's within the range that we're expecting, but setting # this flag will indicate that this version check should not be done. -#version-check = false +#version-check = true -# Link libstdc++ statically into the librustc_llvm instead of relying on a +# Link libstdc++ statically into the rustc_llvm instead of relying on a # dynamic version to be available. -#static-libstdcpp = false +#static-libstdcpp = true -# Tell the LLVM build system to use Ninja instead of the platform default for -# the generated build system. This can sometimes be faster than make, for -# example. -#ninja = false +# Whether to use Ninja to build LLVM. This runs much faster than make. +#ninja = true # LLVM targets to build support for. # Note: this is NOT related to Rust compilation targets. However, as Rust is @@ -55,14 +103,13 @@ # support. You'll need to write a target specification at least, and most # likely, teach rustc about the C ABI of the target. Get in touch with the # Rust team and file an issue if you need assistance in porting! -#targets = "X86;ARM;AArch64;Mips;PowerPC;SystemZ;JSBackend;MSP430;Sparc;NVPTX;Hexagon" +#targets = "AArch64;ARM;BPF;Hexagon;MSP430;Mips;NVPTX;PowerPC;RISCV;Sparc;SystemZ;WebAssembly;X86" # LLVM experimental targets to build support for. These targets are specified in # the same format as above, but since these targets are experimental, they are # not built by default and the experimental Rust compilation targets that depend -# on them will not work unless the user opts in to building them. By default the -# `WebAssembly` target is enabled when compiling LLVM from scratch. -#experimental-targets = "WebAssembly" +# on them will not work unless the user opts in to building them. +#experimental-targets = "AVR;M68k" # Cap the number of parallel linker invocations when compiling LLVM. # This can be useful when building LLVM with debug info, which significantly @@ -74,48 +121,123 @@ # When invoking `llvm-config` this configures whether the `--shared` argument is # passed to prefer linking to shared libraries. +# NOTE: `thin-lto = true` requires this to be `true` and will give an error otherwise. link-shared = true +# When building llvm, this configures what is being appended to the version. +# The default is "-rust-$version-$channel", except for dev channel where rustc +# version number is omitted. To use LLVM version as is, provide an empty string. +#version-suffix = "-rust-dev" + +# On MSVC you can compile LLVM with clang-cl, but the test suite doesn't pass +# with clang-cl, so this is special in that it only compiles LLVM with clang-cl. +# Note that this takes a /path/to/clang-cl, not a boolean. +#clang-cl = cc + +# Pass extra compiler and linker flags to the LLVM CMake build. +#cflags = "" +#cxxflags = "" +#ldflags = "" + +# Use libc++ when building LLVM instead of libstdc++. This is the default on +# platforms already use libc++ as the default C++ library, but this option +# allows you to use libc++ even on platforms when it's not. You need to ensure +# that your host compiler ships with libc++. +#use-libcxx = false + +# The value specified here will be passed as `-DLLVM_USE_LINKER` to CMake. +#use-linker = <none> (path) + +# Whether or not to specify `-DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=YES` +#allow-old-toolchain = false + +# Whether to include the Polly optimizer. +#polly = false + +# Whether to build the clang compiler. +# clang = false + +# Custom CMake defines to set when building LLVM. +#build-config = {} + # ============================================================================= # General build configuration options # ============================================================================= [build] +# The default stage to use for the `check` subcommand +#check-stage = 0 + +# The default stage to use for the `doc` subcommand +#doc-stage = 0 + +# The default stage to use for the `build` subcommand +#build-stage = 1 + +# The default stage to use for the `test` subcommand +#test-stage = 1 + +# The default stage to use for the `dist` subcommand +#dist-stage = 2 + +# The default stage to use for the `install` subcommand +#install-stage = 2 + +# The default stage to use for the `bench` subcommand +#bench-stage = 2 # Build triple for the original snapshot compiler. This must be a compiler that # nightlies are already produced for. The current platform must be able to run # binaries of this build triple and the nightly will be used to bootstrap the # first compiler. -#build = "x86_64-unknown-linux-gnu" # defaults to your host platform +# +# Defaults to platform where `x.py` is run. +#build = "x86_64-unknown-linux-gnu" (as an example) -# In addition to the build triple, other triples to produce full compiler -# toolchains for. Each of these triples will be bootstrapped from the build -# triple and then will continue to bootstrap themselves. This platform must -# currently be able to run all of the triples provided here. -#host = ["x86_64-unknown-linux-gnu"] # defaults to just the build triple +# Which triples to produce a compiler toolchain for. Each of these triples will +# be bootstrapped from the build triple themselves. +# +# Defaults to just the build triple. +#host = ["x86_64-unknown-linux-gnu"] (as an example) -# In addition to all host triples, other triples to produce the standard library -# for. Each host triple will be used to produce a copy of the standard library -# for each target triple. -#target = ["x86_64-unknown-linux-gnu"] # defaults to just the build triple +# Which triples to build libraries (core/alloc/std/test/proc_macro) for. Each of +# these triples will be bootstrapped from the build triple themselves. +# +# Defaults to `host`. If you set this explicitly, you likely want to add all +# host triples to this list as well in order for those host toolchains to be +# able to compile programs for their native target. +#target = ["x86_64-unknown-linux-gnu"] (as an example) -# Instead of downloading the src/stage0.txt version of Cargo specified, use +# Use this directory to store build artifacts. +# You can use "$ROOT" to indicate the root of the git repository. +#build-dir = "build" + +# Instead of downloading the src/stage0.json version of Cargo specified, use # this Cargo binary instead to build all Rust code -#cargo = "/path/to/bin/cargo" +#cargo = "/path/to/cargo" -# Instead of downloading the src/stage0.txt version of the compiler +# Instead of downloading the src/stage0.json version of the compiler # specified, use this rustc binary instead as the stage0 snapshot compiler. -#rustc = "/path/to/bin/rustc" +#rustc = "/path/to/rustc" + +# Instead of download the src/stage0.json version of rustfmt specified, +# use this rustfmt binary instead as the stage0 snapshot rustfmt. +#rustfmt = "/path/to/rustfmt" # Flag to specify whether any documentation is built. If false, rustdoc and # friends will still be compiled but they will not be used to generate any # documentation. #docs = true +# Flag to specify whether CSS, JavaScript, and HTML are minified when +# docs are generated. JSON is always minified, because it's enormous, +# and generated in already-minified form from the beginning. +#docs-minification = true + # Indicate whether the compiler should be documented in addition to the standard # library and facade crates. #compiler-docs = false -# Indicate whether submodules are managed and updated automatically. +# Indicate whether git submodules are managed and updated automatically. #submodules = true # The path to (or name of) the GDB executable to use. This is only used for @@ -128,8 +250,9 @@ link-shared = true # Python interpreter to use for various tasks throughout the build, notably # rustdoc tests, the lldb python interpreter, and some dist bits and pieces. -# Note that Python 2 is currently required. -#python = "python2.7" +# +# Defaults to the Python interpreter used to execute x.py +#python = "python" # Force Cargo to check that Cargo.lock describes the precise dependency # set that all the Cargo.toml files create, instead of updating it. @@ -138,32 +261,39 @@ link-shared = true # Indicate whether the vendored sources are used for Rust dependencies or not #vendor = false -# Typically the build system will build the rust compiler twice. The second +# Typically the build system will build the Rust compiler twice. The second # compiler, however, will simply use its own libraries to link against. If you # would rather to perform a full bootstrap, compiling the compiler three times, # then you can set this option to true. You shouldn't ever need to set this # option to true. #full-bootstrap = false -# Enable a build of the extended rust tool set which is not only the compiler +# Enable a build of the extended Rust tool set which is not only the compiler # but also tools such as Cargo. This will also produce "combined installers" # which are used to install Rust and Cargo together. This is disabled by -# default. +# default. The `tools` option (immediately below) specifies which tools should +# be built if `extended = true`. extended = true +# Installs chosen set of extended tools if `extended = true`. By default builds +# all extended tools except `rust-demangler`, unless the target is also being +# built with `profiler = true`. If chosen tool failed to build the installation +# fails. If `extended = false`, this option is ignored. +#tools = ["cargo", "rls", "clippy", "rustfmt", "analysis", "src"] # + "rust-demangler" if `profiler` + # Verbosity level: 0 == not verbose, 1 == verbose, 2 == very verbose #verbose = 0 # Build the sanitizer runtimes sanitizers = true -# Build the profiler runtime +# Build the profiler runtime (required when compiling with options that depend +# on this runtime, such as `-C profile-generate` or `-C instrument-coverage`). profiler = true -# Indicates whether the OpenSSL linked into Cargo will be statically linked or -# not. If static linkage is specified then the build system will download a -# known-good version of OpenSSL, compile it, and link it to Cargo. -#openssl-static = false +# Indicates whether the native libraries linked into Cargo will be statically +# linked or not. +#cargo-native-static = false # Run the build with low priority, by setting the process group's "nice" value # to +10 on Unix platforms, and by using a "low priority" job object on Windows. @@ -178,13 +308,35 @@ profiler = true # essentially skipping stage0 as the local compiler is recompiling itself again. #local-rebuild = false +# Print out how long each rustbuild step took (mostly intended for CI and +# tracking over time) +#print-step-timings = false + +# Print out resource usage data for each rustbuild step, as defined by the Unix +# struct rusage. (Note that this setting is completely unstable: the data it +# captures, what platforms it supports, the format of its associated output, and +# this setting's very existence, are all subject to change.) +#print-step-rusage = false + +# Always patch binaries for usage with Nix toolchains. If `true` then binaries +# will be patched unconditionally. If `false` or unset, binaries will be patched +# only if the current distribution is NixOS. This option is useful when using +# a Nix toolchain on non-NixOS distributions. +#patch-binaries-for-nix = false + +# Collect information and statistics about the current build and writes it to +# disk. Enabling this or not has no impact on the resulting build output. The +# schema of the file generated by the build metrics feature is unstable, and +# this is not intended to be used during local development. +#metrics = false + # ============================================================================= # General install configuration options # ============================================================================= [install] # Instead of installing to /usr/local, install to this path instead. -prefix = '/usr' +prefix = "/usr" # Where to install system configuration files # If this is a relative path, it will get installed in `prefix` above @@ -202,94 +354,290 @@ prefix = '/usr' # Where to install man pages in `prefix` above #mandir = "share/man" +# Where to install data in `prefix` above +#datadir = "share" + # ============================================================================= # Options for compiling Rust code itself # ============================================================================= [rust] -# Indicates that the build should be optimized for debugging Rust. Note that -# this is typically not what you want as it takes an incredibly large amount of -# time to have a debug-mode rustc compile any code (notably libstd). If this -# value is set to `true` it will affect a number of configuration options below -# as well, if unconfigured. +# Whether or not to optimize the compiler and standard library. +# WARNING: Building with optimize = false is NOT SUPPORTED. Due to bootstrapping, +# building without optimizations takes much longer than optimizing. Further, some platforms +# fail to build without this optimization (c.f. #65352). +#optimize = true + +# Indicates that the build should be configured for debugging Rust. A +# `debug`-enabled compiler and standard library will be somewhat +# slower (due to e.g. checking of debug assertions) but should remain +# usable. +# +# Note: If this value is set to `true`, it will affect a number of +# configuration options below as well, if they have been left +# unconfigured in this file. +# +# Note: changes to the `debug` setting do *not* affect `optimize` +# above. In theory, a "maximally debuggable" environment would +# set `optimize` to `false` above to assist the introspection +# facilities of debuggers like lldb and gdb. To recreate such an +# environment, explicitly set `optimize` to `false` and `debug` +# to `true`. In practice, everyone leaves `optimize` set to +# `true`, because an unoptimized rustc with debugging +# enabled becomes *unusably slow* (e.g. rust-lang/rust#24840 +# reported a 25x slowdown) and bootstrapping the supposed +# "maximally debuggable" environment (notably libstd) takes +# hours to build. +# #debug = false -# Whether or not to optimize the compiler and standard library -# Note: the slowness of the non optimized compiler compiling itself usually -# outweighs the time gains in not doing optimizations, therefore a -# full bootstrap takes much more time with optimize set to false. -#optimize = true +# Whether to download the stage 1 and 2 compilers from CI. +# This is mostly useful for tools; if you have changes to `compiler/` they will be ignored. +# +# You can set this to "if-unchanged" to only download if `compiler/` has not been modified. +#download-rustc = false # Number of codegen units to use for each compiler invocation. A value of 0 # means "the number of cores on this machine", and 1+ is passed through to the # compiler. -#codegen-units = 1 +# +# Uses the rustc defaults: https://doc.rust-lang.org/rustc/codegen-options/index.html#codegen-units +#codegen-units = if incremental { 256 } else { 16 } + +# Sets the number of codegen units to build the standard library with, +# regardless of what the codegen-unit setting for the rest of the compiler is. +# NOTE: building with anything other than 1 is known to occasionally have bugs. +# See https://github.com/rust-lang/rust/issues/83600. +#codegen-units-std = codegen-units # Whether or not debug assertions are enabled for the compiler and standard -# library. Also enables compilation of debug! and trace! logging macros. -#debug-assertions = false +# library. Debug assertions control the maximum log level used by rustc. When +# enabled calls to `trace!` and `debug!` macros are preserved in the compiled +# binary, otherwise they are omitted. +# +# Defaults to rust.debug value +#debug-assertions = rust.debug (boolean) -# Whether or not debuginfo is emitted -#debuginfo = false +# Whether or not debug assertions are enabled for the standard library. +# Overrides the `debug-assertions` option, if defined. +# +# Defaults to rust.debug-assertions value +#debug-assertions-std = rust.debug-assertions (boolean) -# Whether or not line number debug information is emitted -#debuginfo-lines = false +# Whether or not to leave debug! and trace! calls in the rust binary. +# Overrides the `debug-assertions` option, if defined. +# +# Defaults to rust.debug-assertions value +# +# If you see a message from `tracing` saying +# `max_level_info` is enabled and means logging won't be shown, +# set this value to `true`. +#debug-logging = rust.debug-assertions (boolean) -# Whether or not to only build debuginfo for the standard library if enabled. -# If enabled, this will not compile the compiler with debuginfo, just the -# standard library. -#debuginfo-only-std = false +# Whether or not overflow checks are enabled for the compiler and standard +# library. +# +# Defaults to rust.debug value +#overflow-checks = rust.debug (boolean) + +# Whether or not overflow checks are enabled for the standard library. +# Overrides the `overflow-checks` option, if defined. +# +# Defaults to rust.overflow-checks value +#overflow-checks-std = rust.overflow-checks (boolean) + +# Debuginfo level for most of Rust code, corresponds to the `-C debuginfo=N` option of `rustc`. +# `0` - no debug info +# `1` - line tables only - sufficient to generate backtraces that include line +# information and inlined functions, set breakpoints at source code +# locations, and step through execution in a debugger. +# `2` - full debug info with variable and type information +# Can be overridden for specific subsets of Rust code (rustc, std or tools). +# Debuginfo for tests run with compiletest is not controlled by this option +# and needs to be enabled separately with `debuginfo-level-tests`. +# +# Note that debuginfo-level = 2 generates several gigabytes of debuginfo +# and will slow down the linking process significantly. +# +# Defaults to 1 if debug is true +#debuginfo-level = 0 + +# Debuginfo level for the compiler. +#debuginfo-level-rustc = debuginfo-level + +# Debuginfo level for the standard library. +#debuginfo-level-std = debuginfo-level + +# Debuginfo level for the tools. +#debuginfo-level-tools = debuginfo-level -# Whether or not jemalloc is built and enabled -use-jemalloc = false +# Debuginfo level for the test suites run with compiletest. +# FIXME(#61117): Some tests fail when this option is enabled. +#debuginfo-level-tests = 0 -# Whether or not jemalloc is built with its debug option set -#debug-jemalloc = false +# Should rustc be build with split debuginfo? Default is platform dependent. +# Valid values are the same as those accepted by `-C split-debuginfo` +# (`off`/`unpacked`/`packed`). +# +# On Linux, split debuginfo is disabled by default. +# +# On Apple platforms, unpacked split debuginfo is used by default. Unpacked +# debuginfo does not run `dsymutil`, which packages debuginfo from disparate +# object files into a single `.dSYM` file. `dsymutil` adds time to builds for +# no clear benefit, and also makes it more difficult for debuggers to find +# debug info. The compiler currently defaults to running `dsymutil` to preserve +# its historical default, but when compiling the compiler itself, we skip it by +# default since we know it's safe to do so in that case. +# +# On Windows platforms, packed debuginfo is the only supported option, +# producing a `.pdb` file. +#split-debuginfo = if linux { off } else if windows { packed } else if apple { unpacked } # Whether or not `panic!`s generate backtraces (RUST_BACKTRACE) #backtrace = true -# The default linker that will be hard-coded into the generated compiler for -# targets that don't specify linker explicitly in their target specifications. -# Note that this is not the linker used to link said compiler. -#default-linker = "cc" +# Whether to always use incremental compilation when building rustc +#incremental = false + +# Build a multi-threaded rustc +# FIXME(#75760): Some UI tests fail when this option is enabled. +#parallel-compiler = false + +# The default linker that will be hard-coded into the generated +# compiler for targets that don't specify a default linker explicitly +# in their target specifications. Note that this is not the linker +# used to link said compiler. It can also be set per-target (via the +# `[target.<triple>]` block), which may be useful in a cross-compilation +# setting. +# +# See https://doc.rust-lang.org/rustc/codegen-options/index.html#linker for more information. +#default-linker = <none> (path) # The "channel" for the Rust build to produce. The stable/beta channels only # allow using stable features, whereas the nightly and dev channels allow using # nightly features #channel = "dev" +# 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 +# will also need to contain libunwind.a for an unwinding implementation. Note +# that this option only makes sense for musl targets that produce statically +# linked binaries. +# +# Defaults to /usr on musl hosts. Has no default otherwise. +#musl-root = <platform specific> (path) + # By default the `rustc` executable is built with `-Wl,-rpath` flags on Unix # platforms to ensure that the compiler is usable by default from the build # directory (as it links to a number of dynamic libraries). This may not be # desired in distributions, for example. #rpath = true -# Suppresses extraneous output from tests to ensure the output of the test -# harness is relatively clean. -#quiet-tests = false +# Prints each test name as it is executed, to help debug issues in the test harness itself. +#verbose-tests = false -# Flag indicating whether tests are compiled with optimizations (the -O flag) or -# with debuginfo (the -g flag) +# Flag indicating whether tests are compiled with optimizations (the -O flag). #optimize-tests = true -#debuginfo-tests = true # Flag indicating whether codegen tests will be run or not. If you get an error # saying that the FileCheck executable is missing, you may want to disable this. +# Also see the target's llvm-filecheck option. codegen-tests = false # Flag indicating whether git info will be retrieved from .git automatically. # Having the git information can cause a lot of rebuilds during development. -# Note: If this attribute is not explicity set (e.g. if left commented out) it +# Note: If this attribute is not explicitly set (e.g. if left commented out) it # will default to true if channel = "dev", but will default to false otherwise. ignore-git = false # When creating source tarballs whether or not to create a source tarball. dist-src = false -# Whether to also run the Miri tests suite when running tests. -# As a side-effect also generates MIR for all libraries. -#test-miri = false +# After building or testing extended tools (e.g. clippy and rustfmt), append the +# result (broken, compiling, testing) into this JSON file. +#save-toolstates = <none> (path) + +# This is an array of the codegen backends that will be compiled for the rustc +# that's being compiled. The default is to only build the LLVM codegen backend, +# and currently the only standard options supported are `"llvm"`, `"cranelift"` +# and `"gcc"`. The first backend in this list will be used as default by rustc +# when no explicit backend is specified. +#codegen-backends = ["llvm"] + +# Indicates whether LLD will be compiled and made available in the sysroot for +# rustc to execute. +#lld = false + +# Indicates whether LLD will be used to link Rust crates during bootstrap on +# supported platforms. The LLD from the bootstrap distribution will be used +# and not the LLD compiled during the bootstrap. +# +# LLD will not be used if we're cross linking. +# +# Explicitly setting the linker for a target will override this option when targeting MSVC. +#use-lld = false + +# Indicates whether some LLVM tools, like llvm-objdump, will be made available in the +# sysroot. +llvm-tools = true + +# Whether to deny warnings in crates +#deny-warnings = true + +# Print backtrace on internal compiler errors during bootstrap +#backtrace-on-ice = false + +# Whether to verify generated LLVM IR +#verify-llvm-ir = false + +# Compile the compiler with a non-default ThinLTO import limit. This import +# limit controls the maximum size of functions imported by ThinLTO. Decreasing +# will make code compile faster at the expense of lower runtime performance. +#thin-lto-import-instr-limit = if incremental { 10 } else { LLVM default (currently 100) } + +# Map debuginfo paths to `/rust/$sha/...`, generally only set for releases +#remap-debuginfo = false + +# Link the compiler against `jemalloc`, where on Linux and OSX it should +# override the default allocator for rustc and LLVM. +jemalloc = true + +# Run tests in various test suites with the "nll compare mode" in addition to +# running the tests in normal mode. Largely only used on CI and during local +# development of NLL +#test-compare-mode = false + +# Global default for llvm-libunwind for all targets. See the target-specific +# documentation for llvm-libunwind below. Note that the target-specific +# option will override this if set. +#llvm-libunwind = 'no' + +# Enable Windows Control Flow Guard checks in the standard library. +# This only applies from stage 1 onwards, and only for Windows targets. +#control-flow-guard = false + +# Enable symbol-mangling-version v0. This can be helpful when profiling rustc, +# as generics will be preserved in symbols (rather than erased into opaque T). +# When no setting is given, the new scheme will be used when compiling the +# compiler and its tools and the legacy scheme will be used when compiling the +# standard library. +# 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 @@ -299,53 +647,98 @@ dist-src = false # ============================================================================= [target.x86_64-unknown-linux-gnu] -# C compiler to be used to compiler C code. Note that the +# C compiler to be used to compile C code. Note that the # default value is platform specific, and if not specified it may also depend on # what platform is crossing to what platform. -#cc = "cc" +# See `src/bootstrap/cc_detect.rs` for details. +#cc = "cc" (path) -# C++ compiler to be used to compiler C++ code (e.g. LLVM and our LLVM shims). +# C++ compiler to be used to compile C++ code (e.g. LLVM and our LLVM shims). # This is only used for host targets. -#cxx = "c++" +# See `src/bootstrap/cc_detect.rs` for details. +#cxx = "c++" (path) # Archiver to be used to assemble static libraries compiled from C/C++ code. # Note: an absolute path should be used, otherwise LLVM build will break. -#ar = "ar" +#ar = "ar" (path) + +# Ranlib to be used to assemble static libraries compiled from C/C++ code. +# Note: an absolute path should be used, otherwise LLVM build will break. +#ranlib = "ranlib" (path) -# Linker to be used to link Rust code. Note that the +# Linker to be used to bootstrap Rust code. Note that the # default value is platform specific, and if not specified it may also depend on # what platform is crossing to what platform. -#linker = "cc" +# Setting this will override the `use-lld` option for Rust code when targeting MSVC. +#linker = "cc" (path) # Path to the `llvm-config` binary of the installation of a custom LLVM to link -# against. Note that if this is specifed we don't compile LLVM at all for this +# against. Note that if this is specified we don't compile LLVM at all for this # target. llvm-config = '/usr/bin/llvm-config' -# Path to the custom jemalloc static library to link into the standard library -# by default. This is only used if jemalloc is still enabled above -#jemalloc = "/path/to/jemalloc/libjemalloc_pic.a" +# 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" + +# Use LLVM libunwind as the implementation for Rust's unwinder. +# Accepted values are 'in-tree' (formerly true), 'system' or 'no' (formerly false). +# This option only applies for Linux and Fuchsia targets. +# On Linux target, if crt-static is not enabled, 'no' means dynamic link to +# `libgcc_s.so`, 'in-tree' means static link to the in-tree build of llvm libunwind +# and 'system' means dynamic link to `libunwind.so`. If crt-static is enabled, +# the behavior is depend on the libc. On musl target, 'no' and 'in-tree' both +# means static link to the in-tree build of llvm libunwind, and 'system' means +# static link to `libunwind.a` provided by system. Due to the limitation of glibc, +# it must link to `libgcc_eh.a` to get a working output, and this option have no effect. +#llvm-libunwind = 'no' if Linux, 'in-tree' if Fuchsia # If this target is for Android, this option will be required to specify where # the NDK for the target lives. This is used to find the C compiler to link and # build native code. -#android-ndk = "/path/to/ndk" +# See `src/bootstrap/cc_detect.rs` for details. +#android-ndk = <none> (path) + +# Build the sanitizer runtimes for this target. +# This option will override the same option under [build] section. +#sanitizers = build.sanitizers (bool) + +# Build the profiler runtime for this target(required when compiling with options that depend +# on this runtime, such as `-C profile-generate` or `-C instrument-coverage`). +# This option will override the same option under [build] section. +#profiler = build.profiler (bool) # Force static or dynamic linkage of the standard library for this target. If # this target is a host for rustc, this will also affect the linkage of the # compiler itself. This is useful for building rustc on targets that normally # only use static libraries. If unset, the target's default linkage is used. -#crt-static = false +#crt-static = <platform-specific> (bool) -# The root location of the MUSL installation directory. The library directory +# The root location of the musl installation directory. The library directory # will also need to contain libunwind.a for an unwinding implementation. Note -# that this option only makes sense for MUSL targets that produce statically -# linked binaries -#musl-root = "..." +# that this option only makes sense for musl targets that produce statically +# linked binaries. +#musl-root = build.musl-root (path) + +# The full path to the musl libdir. +#musl-libdir = musl-root/lib + +# The root location of the `wasm32-wasi` sysroot. Only used for the +# `wasm32-wasi` target. If you are building wasm32-wasi target, make sure to +# create a `[target.wasm32-wasi]` section and move this field there. +#wasi-root = <none> (path) # Used in testing for configuring where the QEMU images are located, you # probably don't want to use this. -#qemu-rootfs = "..." +#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 @@ -362,12 +755,7 @@ llvm-config = '/usr/bin/llvm-config' # # This folder should be populated ahead of time before the build system is # invoked. -#sign-folder = "path/to/folder/to/sign" - -# This is a file which contains the password of the default gpg key. This will -# be passed to `gpg` down the road when signing all files in `sign-folder` -# above. This should be stored in plaintext. -#gpg-password-file = "path/to/gpg/password" +#sign-folder = <none> (path) # The remote address that all artifacts will eventually be uploaded to. The # build system generates manifests which will point to these urls, and for the @@ -375,7 +763,7 @@ llvm-config = '/usr/bin/llvm-config' # # Note that this address should not contain a trailing slash as file names will # be appended to it. -#upload-addr = "https://example.com/folder" +#upload-addr = <none> (URL) # Whether to build a plain source tarball to upload # We disable that on Windows not to override the one already uploaded on S3 @@ -383,3 +771,11 @@ llvm-config = '/usr/bin/llvm-config' # on linux #src-tarball = true +# Whether to allow failures when building tools +#missing-tools = false + +# List of compression formats to use when generating dist tarballs. The list of +# formats is provided to rust-installer, which must support all of them. +# +# This list must be non-empty. +#compression-formats = ["gz", "xz"] |