Mercurial > hg > CbC > CbC_gcc
comparison gcc/mkconfig.sh @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
parents | |
children | f6334be47118 |
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-1:000000000000 | 0:a06113de4d67 |
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1 #! /bin/sh | |
2 | |
3 # Copyright (C) 2001, 2002, 2006, 2007 Free Software Foundation, Inc. | |
4 # This file is part of GCC. | |
5 | |
6 # GCC is free software; you can redistribute it and/or modify | |
7 # it under the terms of the GNU General Public License as published by | |
8 # the Free Software Foundation; either version 3, or (at your option) | |
9 # any later version. | |
10 | |
11 # GCC is distributed in the hope that it will be useful, | |
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 # GNU General Public License for more details. | |
15 | |
16 # You should have received a copy of the GNU General Public License | |
17 # along with GCC; see the file COPYING3. If not see | |
18 # <http://www.gnu.org/licenses/>. | |
19 | |
20 | |
21 # Generate gcc's various configuration headers: | |
22 # config.h, tconfig.h, bconfig.h, tm.h, and tm_p.h. | |
23 # $1 is the file to generate. DEFINES, HEADERS, and possibly | |
24 # TARGET_CPU_DEFAULT are expected to be set in the environment. | |
25 | |
26 if [ -z "$1" ]; then | |
27 echo "Usage: DEFINES='list' HEADERS='list' \\" >&2 | |
28 echo " [TARGET_CPU_DEFAULT='default'] mkconfig.sh FILE" >&2 | |
29 exit 1 | |
30 fi | |
31 | |
32 output=$1 | |
33 rm -f ${output}T | |
34 | |
35 # This converts a file name into header guard macro format. | |
36 hg_sed_expr='y,abcdefghijklmnopqrstuvwxyz./,ABCDEFGHIJKLMNOPQRSTUVWXYZ__,' | |
37 header_guard=GCC_`echo ${output} | sed -e ${hg_sed_expr}` | |
38 | |
39 # Add multiple inclusion protection guard, part one. | |
40 echo "#ifndef ${header_guard}" >> ${output}T | |
41 echo "#define ${header_guard}" >> ${output}T | |
42 | |
43 # A special test to ensure that build-time files don't blindly use | |
44 # config.h. | |
45 if test x"$output" = x"config.h"; then | |
46 echo "#ifdef GENERATOR_FILE" >> ${output}T | |
47 echo "#error config.h is for the host, not build, machine." >> ${output}T | |
48 echo "#endif" >> ${output}T | |
49 fi | |
50 | |
51 # Define TARGET_CPU_DEFAULT if the system wants one. | |
52 # This substitutes for lots of *.h files. | |
53 if [ "$TARGET_CPU_DEFAULT" != "" ]; then | |
54 echo "#define TARGET_CPU_DEFAULT ($TARGET_CPU_DEFAULT)" >> ${output}T | |
55 fi | |
56 | |
57 # Provide defines for other macros set in config.gcc for this file. | |
58 for def in $DEFINES; do | |
59 echo "#ifndef $def" | sed 's/=.*//' >> ${output}T | |
60 echo "# define $def" | sed 's/=/ /' >> ${output}T | |
61 echo "#endif" >> ${output}T | |
62 done | |
63 | |
64 # The first entry in HEADERS may be auto-FOO.h ; | |
65 # it wants to be included even when not -DIN_GCC. | |
66 if [ -n "$HEADERS" ]; then | |
67 set $HEADERS | |
68 case "$1" in auto-* ) | |
69 echo "#include \"$1\"" >> ${output}T | |
70 shift | |
71 ;; | |
72 esac | |
73 if [ $# -ge 1 ]; then | |
74 echo '#ifdef IN_GCC' >> ${output}T | |
75 for file in "$@"; do | |
76 echo "# include \"$file\"" >> ${output}T | |
77 done | |
78 echo '#endif' >> ${output}T | |
79 fi | |
80 fi | |
81 | |
82 # If this is tm.h, now include insn-constants.h and insn-flags.h only | |
83 # if IN_GCC is defined but neither GENERATOR_FILE nor USED_FOR_TARGET | |
84 # is defined. (Much of this is temporary.) | |
85 | |
86 case $output in | |
87 tm.h ) | |
88 cat >> ${output}T <<EOF | |
89 #if defined IN_GCC && !defined GENERATOR_FILE && !defined USED_FOR_TARGET | |
90 # include "insn-constants.h" | |
91 # include "insn-flags.h" | |
92 #endif | |
93 EOF | |
94 ;; | |
95 esac | |
96 | |
97 # Add multiple inclusion protection guard, part two. | |
98 echo "#endif /* ${header_guard} */" >> ${output}T | |
99 | |
100 # Avoid changing the actual file if possible. | |
101 if [ -f $output ] && cmp ${output}T $output >/dev/null 2>&1; then | |
102 echo $output is unchanged >&2 | |
103 rm -f ${output}T | |
104 else | |
105 mv -f ${output}T $output | |
106 fi | |
107 | |
108 # Touch a stamp file for Make's benefit. | |
109 rm -f cs-$output | |
110 echo timestamp > cs-$output |