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diff --git a/share/doc/gccint/Filesystem.html b/share/doc/gccint/Filesystem.html new file mode 100644 index 0000000..5d537a1 --- /dev/null +++ b/share/doc/gccint/Filesystem.html @@ -0,0 +1,212 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 1988-2023 Free Software Foundation, Inc. + +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with the +Invariant Sections being "Funding Free Software", the Front-Cover +Texts being (a) (see below), and with the Back-Cover Texts being (b) +(see below). A copy of the license is included in the section entitled +"GNU Free Documentation License". + +(a) The FSF's Front-Cover Text is: + +A GNU Manual + +(b) The FSF's Back-Cover Text is: + +You have freedom to copy and modify this GNU Manual, like GNU + software. Copies published by the Free Software Foundation raise + funds for GNU development. --> +<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>GNU Compiler Collection (GCC) Internals: Filesystem</title> + +<meta name="description" content="GNU Compiler Collection (GCC) Internals: Filesystem"> +<meta name="keywords" content="GNU Compiler Collection (GCC) Internals: Filesystem"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Option-Index.html#Option-Index" rel="index" title="Option Index"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Host-Config.html#Host-Config" rel="up" title="Host Config"> +<link href="Host-Misc.html#Host-Misc" rel="next" title="Host Misc"> +<link href="Host-Common.html#Host-Common" rel="previous" title="Host Common"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.indentedblock {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smallindentedblock {margin-left: 3.2em; font-size: smaller} +div.smalllisp {margin-left: 3.2em} +kbd {font-style:oblique} +pre.display {font-family: inherit} +pre.format {font-family: inherit} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.nocodebreak {white-space:nowrap} +span.nolinebreak {white-space:nowrap} +span.roman {font-family:serif; font-weight:normal} +span.sansserif {font-family:sans-serif; font-weight:normal} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> +<a name="Filesystem"></a> +<div class="header"> +<p> +Next: <a href="Host-Misc.html#Host-Misc" accesskey="n" rel="next">Host Misc</a>, Previous: <a href="Host-Common.html#Host-Common" accesskey="p" rel="previous">Host Common</a>, Up: <a href="Host-Config.html#Host-Config" accesskey="u" rel="up">Host Config</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> +</div> +<hr> +<a name="Host-Filesystem"></a> +<h3 class="section">19.2 Host Filesystem</h3> +<a name="index-configuration-file"></a> +<a name="index-xm_002dmachine_002eh"></a> + +<p>GCC needs to know a number of things about the semantics of the host +machine’s filesystem. Filesystems with Unix and MS-DOS semantics are +automatically detected. For other systems, you can define the +following macros in <samp>xm-<var>machine</var>.h</samp>. +</p> +<dl compact="compact"> +<dt><code>HAVE_DOS_BASED_FILE_SYSTEM</code> +<a name="index-HAVE_005fDOS_005fBASED_005fFILE_005fSYSTEM"></a> +</dt> +<dd><p>This macro is automatically defined by <samp>system.h</samp> if the host +file system obeys the semantics defined by MS-DOS instead of Unix. +DOS file systems are case insensitive, file specifications may begin +with a drive letter, and both forward slash and backslash (‘<samp>/</samp>’ +and ‘<samp>\</samp>’) are directory separators. +</p> +</dd> +<dt><code>DIR_SEPARATOR</code> +<a name="index-DIR_005fSEPARATOR"></a> +</dt> +<dt><code>DIR_SEPARATOR_2</code> +<a name="index-DIR_005fSEPARATOR_005f2"></a> +</dt> +<dd><p>If defined, these macros expand to character constants specifying +separators for directory names within a file specification. +<samp>system.h</samp> will automatically give them appropriate values on +Unix and MS-DOS file systems. If your file system is neither of +these, define one or both appropriately in <samp>xm-<var>machine</var>.h</samp>. +</p> +<p>However, operating systems like VMS, where constructing a pathname is +more complicated than just stringing together directory names +separated by a special character, should not define either of these +macros. +</p> +</dd> +<dt><code>PATH_SEPARATOR</code> +<a name="index-PATH_005fSEPARATOR"></a> +</dt> +<dd><p>If defined, this macro should expand to a character constant +specifying the separator for elements of search paths. The default +value is a colon (‘<samp>:</samp>’). DOS-based systems usually, but not +always, use semicolon (‘<samp>;</samp>’). +</p> +</dd> +<dt><code>VMS</code> +<a name="index-VMS"></a> +</dt> +<dd><p>Define this macro if the host system is VMS. +</p> +</dd> +<dt><code>HOST_OBJECT_SUFFIX</code> +<a name="index-HOST_005fOBJECT_005fSUFFIX"></a> +</dt> +<dd><p>Define this macro to be a C string representing the suffix for object +files on your host machine. If you do not define this macro, GCC will +use ‘<samp>.o</samp>’ as the suffix for object files. +</p> +</dd> +<dt><code>HOST_EXECUTABLE_SUFFIX</code> +<a name="index-HOST_005fEXECUTABLE_005fSUFFIX"></a> +</dt> +<dd><p>Define this macro to be a C string representing the suffix for +executable files on your host machine. If you do not define this macro, +GCC will use the null string as the suffix for executable files. +</p> +</dd> +<dt><code>HOST_BIT_BUCKET</code> +<a name="index-HOST_005fBIT_005fBUCKET"></a> +</dt> +<dd><p>A pathname defined by the host operating system, which can be opened as +a file and written to, but all the information written is discarded. +This is commonly known as a <em>bit bucket</em> or <em>null device</em>. If +you do not define this macro, GCC will use ‘<samp>/dev/null</samp>’ as the bit +bucket. If the host does not support a bit bucket, define this macro to +an invalid filename. +</p> +</dd> +<dt><code>UPDATE_PATH_HOST_CANONICALIZE (<var>path</var>)</code> +<a name="index-UPDATE_005fPATH_005fHOST_005fCANONICALIZE-_0028path_0029"></a> +</dt> +<dd><p>If defined, a C statement (sans semicolon) that performs host-dependent +canonicalization when a path used in a compilation driver or +preprocessor is canonicalized. <var>path</var> is a malloc-ed path to be +canonicalized. If the C statement does canonicalize <var>path</var> into a +different buffer, the old path should be freed and the new buffer should +have been allocated with malloc. +</p> +</dd> +<dt><code>DUMPFILE_FORMAT</code> +<a name="index-DUMPFILE_005fFORMAT"></a> +</dt> +<dd><p>Define this macro to be a C string representing the format to use for +constructing the index part of debugging dump file names. The resultant +string must fit in fifteen bytes. The full filename will be the +concatenation of: the prefix of the assembler file name, the string +resulting from applying this format to an index number, and a string +unique to each dump file kind, e.g. ‘<samp>rtl</samp>’. +</p> +<p>If you do not define this macro, GCC will use ‘<samp>.%02d.</samp>’. You should +define this macro if using the default will create an invalid file name. +</p> +</dd> +<dt><code>DELETE_IF_ORDINARY</code> +<a name="index-DELETE_005fIF_005fORDINARY"></a> +</dt> +<dd><p>Define this macro to be a C statement (sans semicolon) that performs +host-dependent removal of ordinary temp files in the compilation driver. +</p> +<p>If you do not define this macro, GCC will use the default version. You +should define this macro if the default version does not reliably remove +the temp file as, for example, on VMS which allows multiple versions +of a file. +</p> +</dd> +<dt><code>HOST_LACKS_INODE_NUMBERS</code> +<a name="index-HOST_005fLACKS_005fINODE_005fNUMBERS"></a> +</dt> +<dd><p>Define this macro if the host filesystem does not report meaningful inode +numbers in struct stat. +</p></dd> +</dl> + +<hr> +<div class="header"> +<p> +Next: <a href="Host-Misc.html#Host-Misc" accesskey="n" rel="next">Host Misc</a>, Previous: <a href="Host-Common.html#Host-Common" accesskey="p" rel="previous">Host Common</a>, Up: <a href="Host-Config.html#Host-Config" accesskey="u" rel="up">Host Config</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> +</div> + + + +</body> +</html> |