190 lines
5.1 KiB
Groff
190 lines
5.1 KiB
Groff
.TH RUSTC "1" "March 2014" "rustc 0.11-pre" "User Commands"
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.SH NAME
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rustc \- rust compiler
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.SH SYNOPSIS
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.B rustc
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[\fIOPTIONS\fR] \fIINPUT\fR
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.SH DESCRIPTION
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This program is a compiler for the Rust language, available at
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<\fBhttps://www.rust-lang.org\fR>.
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.SH OPTIONS
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.TP
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\fB\-\-crate-type=[bin|lib|dylib|rlib|staticlib]\fR
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Configure the flavor of rust crate that is generated (default `bin`)
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.TP
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\fB\-\-cfg\fR SPEC
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Configure the compilation environment
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.TP
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\fB\-\-emit=[asm,ir,bc,obj,link]\fR
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Configure the output that rustc will produce
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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Display this message
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.TP
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\fB\-L\fR PATH
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Add a directory to the library search path
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.TP
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\fB\-\-ls\fR
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List the symbols defined by a library crate
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.TP
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\fB\-\-no\-trans\fR
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Run all passes except translation; no output
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.TP
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\fB\-g\fR, \fB\-\-debuginfo\fR
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Emit DWARF debug information into object files generated.
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.TP
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\fB\-O\fR
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Equivalent to \fI\-\-opt\-level=2\fR
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.TP
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\fB\-o\fR FILENAME
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Write output to <filename>. Ignored if more than one --emit is specified.
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.TP
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\fB\-\-opt\-level\fR LEVEL
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Optimize with possible levels 0-3
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.TP
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\fB\-\-out\-dir\fR DIR
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Write output to compiler-chosen filename in <dir>. Ignored if -o is specified.
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(default the current directory)
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.TP
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\fB\-\-parse\-only\fR
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Parse only; do not compile, assemble, or link
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.TP
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\fB\-\-pretty\fR [TYPE]
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Pretty-print the input instead of compiling; valid types are: normal
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(un-annotated source), expanded (crates expanded), typed (crates
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expanded, with type annotations), or identified (fully parenthesized,
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AST nodes and blocks with IDs)
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.TP
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\fB\-\-sysroot\fR PATH
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Override the system root
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.TP
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\fB\-\-test\fR
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Build a test harness
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.TP
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\fB\-\-target\fR TRIPLE
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Target triple cpu-manufacturer-kernel[-os] to compile for (see
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http://sources.redhat.com/autobook/autobook/autobook_17.html
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for details)
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.TP
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\fB\-W\fR help
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Print 'lint' options and default settings
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.TP
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\fB\-W\fR OPT, \fB\-\-warn\fR OPT
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Set lint warnings
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.TP
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\fB\-A\fR OPT, \fB\-\-allow\fR OPT
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Set lint allowed
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.TP
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\fB\-D\fR OPT, \fB\-\-deny\fR OPT
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Set lint denied
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.TP
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\fB\-F\fR OPT, \fB\-\-forbid\fR OPT
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Set lint forbidden
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.TP
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\fB\-Z\fR FLAG
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Set internal debugging options. Use "-Z help" to print available options.
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.TP
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\fB\-C\fR FLAG[=VAL], \fB\-\-codegen\fR FLAG[=VAL]
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Set a codegen-related flag to the value specifie.d Use "-C help" to print
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available flags. See CODEGEN OPTIONS below
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.TP
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\fB\-v\fR, \fB\-\-version\fR
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Print version info and exit
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.SH CODEGEN OPTIONS
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.TP
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\fBar\fR=/path/to/ar
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Path to the archive utility to use when assembling archives.
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.TP
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\fBlinker\fR=/path/to/cc
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Path to the linker utility to use when linking libraries, executables, and
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objects.
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.TP
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\fBlink-args\fR='-flag1 -flag2'
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A space-separated list of extra arguments to pass to the linker when the linker
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is invoked.
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.TP
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\fBtarget-cpu\fR=help
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Selects a target processor. If the value is 'help', then a list of available
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cpus is printed.
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.TP
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\fBtarget-feature\fR='+feature1 -feature2'
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A space-separated list of features to enable or disable for the target. A
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preceding '+' enables a feature while a preceding '-' disables it. Available
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features can be discovered through target-cpu=help.
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.TP
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\fBpasses\fR=list
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A space-separated list of extra LLVM passes to run. A value of 'list' will
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cause rustc to print all known passes and exit. The passes specified are
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appended at the end of the normal pass manager.
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.TP
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\fBllvm-args\fR='-arg1 -arg2'
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A space-separted list of argument to pass through to LLVM.
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.TP
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\fBsave-temps\fR
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If specified, the compiler will save more files (.bc, .o, .no-opt.bc) generated
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throughout compilation in the output directory.
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.TP
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\fBandroid-cross-path\fR=path/to/ndk/bin
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Directory to find the Android NDK cross-compilation tools
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.TP
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\fBno-rpath\fR
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If specified, then the rpath value for dynamic libraries will not be set in
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either dynamic library or executable outputs.
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.TP
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\fBno-prepopulate-passes\fR
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Suppresses pre-population of the LLVM pass manager that is run over the module.
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.TP
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\fBno-vectorize-loops\fR
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Suppresses running the loop vectorization LLVM pass, regardless of optimization
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level.
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.TP
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\fBno-vectorize-slp\fR
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Suppresses running the LLVM SLP vectorization pass, regardless of optimization
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level.
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.TP
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\fBsoft-float\fR
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Generates software floating point library calls instead of hardware
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instructions.
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.TP
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\fBgen-crate-map\fR
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Forces generate of a toplevel crate map. May be required for logging to work
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when rust is embedded into another application.
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.TP
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\fBprefer-dynamic\fR
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Prefers dynamic linking to static linking.
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.TP
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\fBno-integrated-as\fR
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Force usage of an external assembler rather than LLVM's integrated one.
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.SH "EXAMPLES"
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To build an executable from a source file with a main function:
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$ rustc -o hello hello.rs
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To build a library from a source file:
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$ rustc --crate-type=lib hello-lib.rs
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To build either with a crate (.rs) file:
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$ rustc hello.rs
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To build an executable with debug info:
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$ rustc -g -o hello hello.rs
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.SH "SEE ALSO"
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rustdoc
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.SH "BUGS"
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See <\fBhttps://github.com/mozilla/rust/issues\fR> for issues.
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.SH "AUTHOR"
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See \fBAUTHORS.txt\fR in the Rust source distribution.
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.SH "COPYRIGHT"
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This work is dual-licensed under Apache 2.0 and MIT terms. See \fBCOPYRIGHT\fR
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file in the rust source distribution.
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