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110 lines
2.2 KiB
HTML
110 lines
2.2 KiB
HTML
<html>
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<title>
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LLVM: llvmgcc tool
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</title>
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<body bgcolor=white>
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<center>
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<h1>LLVM: <tt>llvmgcc</tt> tool</h1>
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</center>
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<HR>
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<h3>NAME</h3>
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<tt>llvmgcc</tt>
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<h3>
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SYNOPSIS
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</h3>
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<tt>llvmgcc [options] filename</tt>
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<h3>
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DESCRIPTION
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</h3>
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The <tt>llvmgcc</tt> command is the LLVM C front end. It is a modified version
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of the <a href="http://gcc.gnu.org">GNU Compiler Collection</a> (GCC) that takes
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C programs and compiles them into LLVM bytecode or assembly language, depending
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upon the options.
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<p>
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The <tt>llvmgcc</tt> program uses the <a href="gccas.html"><tt>gccas</tt></a>
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and <a href="gccld.html"><tt>gccld</tt></a> programs to do the work of creating
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complete programs.
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<p>
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Being derived from GCC, llvmgcc has many of GCC's features and accepts most of
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GCC's options. It handles a number of GCC's extensions to the C programming
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language.
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<p>
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Below you will find several commonly used options:
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<h3>
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OPTIONS
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</h3>
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<ul>
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<li> -S
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<br>
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Do not generate an LLVM bytecode file. Rather, compile the source file
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into an LLVM assembly language file.
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<p>
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<li> -c
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<br>
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Do not generate a linked bytecode executable. Rather, compile the source
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file into an LLVM bytecode file. This bytecode file can then be linked
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with other bytecode files later to generate a full LLVM executable.
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<p>
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<li> -o <i>filename</i>
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<br>
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Specify the output file to be <i>filename</i>.
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<p>
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<li> -I <i>directory</i>
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<br>
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Add a directory to the header file search path. This option can be
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repeated.
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<p>
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<li> -L <i>directory</i>
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<br>
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Add <i>directory</i> to the library search path. This option can be
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repeated.
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<p>
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<li> -l<i>name</i>
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<br>
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Link in the library lib<i>name</i>.[bc | a | so]. This library should
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be a bytecode library.
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<p>
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<li>-Wl,<i>option</i>
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<br>
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Pass <i>option</i> to the linker program, <a
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href="gccld.html"><tt>gccld</tt></a>.
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<p>
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</ul>
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<h3>
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EXIT STATUS
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</h3>
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If <tt>llvmgcc</tt> succeeds, it will exit with 0. Otherwise, if an error
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occurs, it will exit with a non-zero value.
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<h3>
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SEE ALSO
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</h3>
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<A HREF="llvmgxx.html"><tt>llvmg++</tt></A>,
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<A HREF="gccas.html"><tt>gccas</tt></A>,
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<A HREF="gccld.html"><tt>gccld</tt></A>
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<HR>
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Maintained by the <a href="http://llvm.cs.uiuc.edu">LLVM Team</a>.
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</body>
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</html>
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