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| .\" ======================================================================== |
| .\" |
| .IX Title "LLVMGCC 1" |
| .TH LLVMGCC 1 "2007-02-11" "CVS" "LLVM Command Guide" |
| .SH "NAME" |
| llvm\-gcc \- LLVM C front\-end |
| .SH "SYNOPSIS" |
| .IX Header "SYNOPSIS" |
| \&\fBllvm-gcc\fR [\fIoptions\fR] \fIfilename\fR |
| .SH "DESCRIPTION" |
| .IX Header "DESCRIPTION" |
| The \fBllvm-gcc\fR command is the \s-1LLVM\s0 C front end. It is a modified |
| version of gcc that compiles C/ObjC programs into native objects, \s-1LLVM\s0 |
| bytecode or \s-1LLVM\s0 assembly language, depending upon the options. |
| .PP |
| By default, \fBllvm-gcc\fR compiles to native objects just like \s-1GCC\s0 does. If the |
| \&\fB\-emit\-llvm\fR option is given then it will generate \s-1LLVM\s0 bytecode files instead. |
| If \fB\-S\fR (assembly) is also given, then it will generate \s-1LLVM\s0 assembly. |
| .PP |
| Being derived from the \s-1GNU\s0 Compiler Collection, \fBllvm-gcc\fR has many |
| of gcc's features and accepts most of gcc's options. It handles a |
| number of gcc's extensions to the C programming language. |
| .SH "OPTIONS" |
| .IX Header "OPTIONS" |
| .IP "\fB\-\-help\fR" 4 |
| .IX Item "--help" |
| Print a summary of command line options. |
| .IP "\fB\-S\fR" 4 |
| .IX Item "-S" |
| Do not generate an \s-1LLVM\s0 bytecode file. Rather, compile the source |
| file into an \s-1LLVM\s0 assembly language file. |
| .IP "\fB\-c\fR" 4 |
| .IX Item "-c" |
| Do not generate a linked executable. Rather, compile the source |
| file into an \s-1LLVM\s0 bytecode file. This bytecode file can then be |
| linked with other bytecode files later on to generate a full \s-1LLVM\s0 |
| executable. |
| .IP "\fB\-o\fR \fIfilename\fR" 4 |
| .IX Item "-o filename" |
| Specify the output file to be \fIfilename\fR. |
| .IP "\fB\-I\fR \fIdirectory\fR" 4 |
| .IX Item "-I directory" |
| Add a directory to the header file search path. This option can be |
| repeated. |
| .IP "\fB\-L\fR \fIdirectory\fR" 4 |
| .IX Item "-L directory" |
| Add \fIdirectory\fR to the library search path. This option can be |
| repeated. |
| .IP "\fB\-l\fR\fIname\fR" 4 |
| .IX Item "-lname" |
| Link in the library lib\fIname\fR.[bc | a | so]. This library should |
| be a bytecode library. |
| .IP "\fB\-emit\-llvm\fR" 4 |
| .IX Item "-emit-llvm" |
| Make the output be \s-1LLVM\s0 bytecode (or assembly) instead of native object (or |
| assembly). |
| .SH "EXIT STATUS" |
| .IX Header "EXIT STATUS" |
| If \fBllvm-gcc\fR succeeds, it will exit with 0. Otherwise, if an error |
| occurs, it will exit with a non-zero value. |
| .SH "SEE ALSO" |
| .IX Header "SEE ALSO" |
| llvm\-g++ |
| .SH "AUTHORS" |
| .IX Header "AUTHORS" |
| Maintained by the \s-1LLVM\s0 Team (<http://llvm.org>). |