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140 lines
6.5 KiB
HTML
140 lines
6.5 KiB
HTML
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any later version published by the Free Software Foundation; with the
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<head>
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<title>File Names and DBX (GNU Compiler Collection (GCC) Internals)</title>
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<meta name="description" content="File Names and DBX (GNU Compiler Collection (GCC) Internals)">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Debugging-Info.html#Debugging-Info" rel="up" title="Debugging Info">
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<link href="DWARF.html#DWARF" rel="next" title="DWARF">
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<link href="DBX-Hooks.html#DBX-Hooks" rel="prev" title="DBX Hooks">
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<a name="File-Names-and-DBX"></a>
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<div class="header">
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<p>
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Next: <a href="DWARF.html#DWARF" accesskey="n" rel="next">DWARF</a>, Previous: <a href="DBX-Hooks.html#DBX-Hooks" accesskey="p" rel="prev">DBX Hooks</a>, Up: <a href="Debugging-Info.html#Debugging-Info" accesskey="u" rel="up">Debugging Info</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="File-Names-in-DBX-Format"></a>
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<h4 class="subsection">18.21.4 File Names in DBX Format</h4>
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<p>This describes file names in DBX format.
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</p>
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<dl>
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<dt><a name="index-DBX_005fOUTPUT_005fMAIN_005fSOURCE_005fFILENAME"></a>Macro: <strong>DBX_OUTPUT_MAIN_SOURCE_FILENAME</strong> <em>(<var>stream</var>, <var>name</var>)</em></dt>
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<dd><p>A C statement to output DBX debugging information to the stdio stream
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<var>stream</var>, which indicates that file <var>name</var> is the main source
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file—the file specified as the input file for compilation.
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This macro is called only once, at the beginning of compilation.
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</p>
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<p>This macro need not be defined if the standard form of output
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for DBX debugging information is appropriate.
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</p>
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<p>It may be necessary to refer to a label equal to the beginning of the
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text section. You can use ‘<samp>assemble_name (stream, ltext_label_name)</samp>’
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to do so. If you do this, you must also set the variable
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<var>used_ltext_label_name</var> to <code>true</code>.
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</p></dd></dl>
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<dl>
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<dt><a name="index-NO_005fDBX_005fMAIN_005fSOURCE_005fDIRECTORY"></a>Macro: <strong>NO_DBX_MAIN_SOURCE_DIRECTORY</strong></dt>
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<dd><p>Define this macro, with value 1, if GCC should not emit an indication
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of the current directory for compilation and current source language at
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the beginning of the file.
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</p></dd></dl>
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<dl>
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<dt><a name="index-NO_005fDBX_005fGCC_005fMARKER"></a>Macro: <strong>NO_DBX_GCC_MARKER</strong></dt>
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<dd><p>Define this macro, with value 1, if GCC should not emit an indication
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that this object file was compiled by GCC. The default is to emit
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an <code>N_OPT</code> stab at the beginning of every source file, with
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‘<samp>gcc2_compiled.</samp>’ for the string and value 0.
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</p></dd></dl>
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<dl>
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<dt><a name="index-DBX_005fOUTPUT_005fMAIN_005fSOURCE_005fFILE_005fEND"></a>Macro: <strong>DBX_OUTPUT_MAIN_SOURCE_FILE_END</strong> <em>(<var>stream</var>, <var>name</var>)</em></dt>
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<dd><p>A C statement to output DBX debugging information at the end of
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compilation of the main source file <var>name</var>. Output should be
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written to the stdio stream <var>stream</var>.
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</p>
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<p>If you don’t define this macro, nothing special is output at the end
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of compilation, which is correct for most machines.
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</p></dd></dl>
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<dl>
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<dt><a name="index-DBX_005fOUTPUT_005fNULL_005fN_005fSO_005fAT_005fMAIN_005fSOURCE_005fFILE_005fEND"></a>Macro: <strong>DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END</strong></dt>
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<dd><p>Define this macro <em>instead of</em> defining
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<code>DBX_OUTPUT_MAIN_SOURCE_FILE_END</code>, if what needs to be output at
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the end of compilation is an <code>N_SO</code> stab with an empty string,
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whose value is the highest absolute text address in the file.
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</p></dd></dl>
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<hr>
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<div class="header">
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<p>
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Next: <a href="DWARF.html#DWARF" accesskey="n" rel="next">DWARF</a>, Previous: <a href="DBX-Hooks.html#DBX-Hooks" accesskey="p" rel="prev">DBX Hooks</a>, Up: <a href="Debugging-Info.html#Debugging-Info" accesskey="u" rel="up">Debugging Info</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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