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111 lines
2.1 KiB
HTML
111 lines
2.1 KiB
HTML
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<html>
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<title>
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LLVM: llvmgcc tool
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</title>
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<body>
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<center>
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<h1>LLVM: llvmgcc tool</h1>
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</center>
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<HR>
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<h3>
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NAME
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</h3>
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llvmgcc
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<h3>
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SYNOPSIS
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</h3>
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llvmgcc [options] filename
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<h3>
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DESCRIPTION
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</h3>
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The llvmgcc command is the LLVM C front end. It is a modified version of GCC
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that takes C programs and compiles them into LLVM bytecode or assembly
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language, depending upon the options.
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<p>
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The llvmgcc program uses the LLVM assembler gccas and the LLVM linker gccld to
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do the work of creating complete programs.
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<p>
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Being derived from the GNU Compiler Collection, llvmgcc has many of gcc's
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features and accepts most of gcc's options. It handles a number of gcc's
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extensions to the C programming 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>. If <i>filename</i> is -,
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then llvmgcc sends its output to standard output.
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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 be
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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 (usually gccld).
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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 llvmgcc succeeds, it will exit with 0. Otherwise, if an error occurs, it
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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">llvmg++</A>,
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<A HREF="gccas.html">gccas</A>,
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<A HREF="gccld.html">gccld</A>
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<HR>
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<a href="http://llvm.cs.uiuc.edu">LLVM Team</a>
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</body>
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</html>
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