Mercurial > hg > CbC > CbC_gcc
annotate gcc/doc/configfiles.texi @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
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date | Mon, 24 May 2010 12:47:05 +0900 |
parents | a06113de4d67 |
children | f6334be47118 |
rev | line source |
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0 | 1 @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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2 @c 1999, 2000, 2001, 2002, 2010 Free Software Foundation, Inc. |
0 | 3 @c This is part of the GCC manual. |
4 @c For copying conditions, see the file gcc.texi. | |
5 | |
6 @node Configuration Files | |
7 @subsubsection Files Created by @code{configure} | |
8 | |
9 Here we spell out what files will be set up by @file{configure} in the | |
10 @file{gcc} directory. Some other files are created as temporary files | |
11 in the configuration process, and are not used in the subsequent | |
12 build; these are not documented. | |
13 | |
14 @itemize @bullet | |
15 @item | |
16 @file{Makefile} is constructed from @file{Makefile.in}, together with | |
17 the host and target fragments (@pxref{Fragments, , Makefile | |
18 Fragments}) @file{t-@var{target}} and @file{x-@var{host}} from | |
19 @file{config}, if any, and language Makefile fragments | |
20 @file{@var{language}/Make-lang.in}. | |
21 @item | |
22 @file{auto-host.h} contains information about the host machine | |
23 determined by @file{configure}. If the host machine is different from | |
24 the build machine, then @file{auto-build.h} is also created, | |
25 containing such information about the build machine. | |
26 @item | |
27 @file{config.status} is a script that may be run to recreate the | |
28 current configuration. | |
29 @item | |
30 @file{configargs.h} is a header containing details of the arguments | |
31 passed to @file{configure} to configure GCC, and of the thread model | |
32 used. | |
33 @item | |
34 @file{cstamp-h} is used as a timestamp. | |
35 @item | |
36 @file{gccbug}, a script for reporting bugs in GCC, is constructed from | |
37 @file{gccbug.in}. | |
38 @item | |
39 If a language @file{config-lang.in} file (@pxref{Front End Config, , | |
40 The Front End @file{config-lang.in} File}) sets @code{outputs}, then | |
41 the files listed in @code{outputs} there are also generated. | |
42 @end itemize | |
43 | |
44 The following configuration headers are created from the Makefile, | |
45 using @file{mkconfig.sh}, rather than directly by @file{configure}. | |
46 @file{config.h}, @file{bconfig.h} and @file{tconfig.h} all contain the | |
47 @file{xm-@var{machine}.h} header, if any, appropriate to the host, | |
48 build and target machines respectively, the configuration headers for | |
49 the target, and some definitions; for the host and build machines, | |
50 these include the autoconfigured headers generated by | |
51 @file{configure}. The other configuration headers are determined by | |
52 @file{config.gcc}. They also contain the typedefs for @code{rtx}, | |
53 @code{rtvec} and @code{tree}. | |
54 | |
55 @itemize @bullet | |
56 @item | |
57 @file{config.h}, for use in programs that run on the host machine. | |
58 @item | |
59 @file{bconfig.h}, for use in programs that run on the build machine. | |
60 @item | |
61 @file{tconfig.h}, for use in programs and libraries for the target | |
62 machine. | |
63 @item | |
64 @file{tm_p.h}, which includes the header @file{@var{machine}-protos.h} | |
65 that contains prototypes for functions in the target @file{.c} file. | |
66 FIXME: why is such a separate header necessary? | |
67 @end itemize |