1 .TH RUSTC "1" "March 2014" "rustc 0.11.0" "User Commands"
3 rustc \- The Rust compiler
6 [\fIOPTIONS\fR] \fIINPUT\fR
9 This program is a compiler for the Rust language, available at
10 <\fBhttps://www.rust-lang.org\fR>.
15 \fB\-\-crate-type=[bin|lib|dylib|rlib|staticlib]\fR
16 Configure the flavor of rust crate that is generated (default `bin`)
19 Configure the compilation environment
21 \fB\-\-emit=[asm,ir,bc,obj,link]\fR
22 Configure the output that rustc will produce
24 \fB\-h\fR, \fB\-\-help\fR
28 Add a directory to the library search path
31 Run all passes except translation; no output
33 \fB\-\-no\-analysis\fR
34 Parse and expand the source, but run no analysis and produce no output
37 Emit DWARF debug information into object files generated.
39 \fB\-\-debuginfo\fR LEVEL
40 Emit DWARF debug info to the objects created: 0 = no debug info, 1 =
41 line-tables only (for stacktraces and breakpoints), 2 = full debug
42 info with variable and type information (same as -g).
45 Equivalent to \fI\-\-opt\-level=2\fR
48 Write output to <filename>. Ignored if more than one --emit is specified.
50 \fB\-\-opt\-level\fR LEVEL
51 Optimize with possible levels 0-3
53 \fB\-\-out\-dir\fR DIR
54 Write output to compiler-chosen filename in <dir>. Ignored if -o is specified.
55 (default the current directory)
58 Parse only; do not compile, assemble, or link
60 \fB\-\-pretty\fR [TYPE]
61 Pretty-print the input instead of compiling; valid types are: normal
62 (un-annotated source), expanded (crates expanded), typed (crates
63 expanded, with type annotations), identified (fully parenthesized,
64 AST nodes and blocks with IDs), or flowgraph=<nodeid> (graphviz
65 formatted flowgraph for node)
67 \fB\-\-dep-info\fR [FILENAME]
68 Output dependency info to <filename> after compiling, in o format suitable
71 \fB\-\-sysroot\fR PATH
72 Override the system root
77 \fB\-\-target\fR TRIPLE
78 Target triple cpu-manufacturer-kernel[-os] to compile for (see
79 http://sources.redhat.com/autobook/autobook/autobook_17.html
83 Print 'lint' options and default settings
85 \fB\-W\fR OPT, \fB\-\-warn\fR OPT
88 \fB\-A\fR OPT, \fB\-\-allow\fR OPT
91 \fB\-D\fR OPT, \fB\-\-deny\fR OPT
94 \fB\-F\fR OPT, \fB\-\-forbid\fR OPT
98 Set internal debugging options. Use "-Z help" to print available options.
100 \fB\-C\fR FLAG[=VAL], \fB\-\-codegen\fR FLAG[=VAL]
101 Set a codegen-related flag to the value specified. Use "-C help" to print
102 available flags. See CODEGEN OPTIONS below
104 \fB\-v\fR, \fB\-\-version\fR
105 Print version info and exit
111 Path to the archive utility to use when assembling archives.
113 \fBlinker\fR=/path/to/cc
114 Path to the linker utility to use when linking libraries, executables, and
117 \fBlink-args\fR='-flag1 -flag2'
118 A space-separated list of extra arguments to pass to the linker when the linker
121 \fBtarget-cpu\fR=help
122 Selects a target processor. If the value is 'help', then a list of available
125 \fBtarget-feature\fR='+feature1 -feature2'
126 A space-separated list of features to enable or disable for the target. A
127 preceding '+' enables a feature while a preceding '-' disables it. Available
128 features can be discovered through target-cpu=help.
131 A space-separated list of extra LLVM passes to run. A value of 'list' will
132 cause rustc to print all known passes and exit. The passes specified are
133 appended at the end of the normal pass manager.
135 \fBllvm-args\fR='-arg1 -arg2'
136 A space-separated list of arguments to pass through to LLVM.
139 If specified, the compiler will save more files (.bc, .o, .no-opt.bc) generated
140 throughout compilation in the output directory.
143 If specified, then the rpath value for dynamic libraries will be set in
144 either dynamic library or executable outputs.
146 \fBno-prepopulate-passes\fR
147 Suppresses pre-population of the LLVM pass manager that is run over the module.
149 \fBno-vectorize-loops\fR
150 Suppresses running the loop vectorization LLVM pass, regardless of optimization
153 \fBno-vectorize-slp\fR
154 Suppresses running the LLVM SLP vectorization pass, regardless of optimization
158 Generates software floating point library calls instead of hardware
162 Prefers dynamic linking to static linking.
164 \fBno-integrated-as\fR
165 Force usage of an external assembler rather than LLVM's integrated one.
167 \fBrelocation-model\fR=[pic,static,dynamic-no-pic]
168 The relocation model to use. (default: pic)
171 To build an executable from a source file with a main function:
172 $ rustc -o hello hello.rs
174 To build a library from a source file:
175 $ rustc --crate-type=lib hello-lib.rs
177 To build either with a crate (.rs) file:
180 To build an executable with debug info:
181 $ rustc -g -o hello hello.rs
188 See <\fBhttps://github.com/rust-lang/rust/issues\fR> for issues.
191 See \fBAUTHORS.txt\fR in the Rust source distribution.
194 This work is dual-licensed under Apache 2.0 and MIT terms. See \fBCOPYRIGHT\fR
195 file in the rust source distribution.