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Commit | Line | Data |
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11642c3a ZW |
1 | #! /bin/sh |
2 | ||
80cf2e08 JM |
3 | # Copyright (C) 2001, 2002, 2006, 2007, 2010, 2011 |
4 | # Free Software Foundation, Inc. | |
4977bab6 ZW |
5 | # This file is part of GCC. |
6 | ||
7 | # GCC is free software; you can redistribute it and/or modify | |
8 | # it under the terms of the GNU General Public License as published by | |
9dcd6f09 | 9 | # the Free Software Foundation; either version 3, or (at your option) |
4977bab6 ZW |
10 | # any later version. |
11 | ||
12 | # GCC is distributed in the hope that it will be useful, | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | # GNU General Public License for more details. | |
16 | ||
17 | # You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
18 | # along with GCC; see the file COPYING3. If not see |
19 | # <http://www.gnu.org/licenses/>. | |
4977bab6 ZW |
20 | |
21 | ||
22 | # Generate gcc's various configuration headers: | |
80cf2e08 | 23 | # config.h, tconfig.h, bconfig.h, tm.h, libgcc_tm.h, and tm_p.h. |
4977bab6 ZW |
24 | # $1 is the file to generate. DEFINES, HEADERS, and possibly |
25 | # TARGET_CPU_DEFAULT are expected to be set in the environment. | |
11642c3a ZW |
26 | |
27 | if [ -z "$1" ]; then | |
4977bab6 ZW |
28 | echo "Usage: DEFINES='list' HEADERS='list' \\" >&2 |
29 | echo " [TARGET_CPU_DEFAULT='default'] mkconfig.sh FILE" >&2 | |
11642c3a ZW |
30 | exit 1 |
31 | fi | |
32 | ||
33 | output=$1 | |
2dbe67bb | 34 | rm -f ${output}T |
11642c3a | 35 | |
5e7537cf NN |
36 | # This converts a file name into header guard macro format. |
37 | hg_sed_expr='y,abcdefghijklmnopqrstuvwxyz./,ABCDEFGHIJKLMNOPQRSTUVWXYZ__,' | |
38 | header_guard=GCC_`echo ${output} | sed -e ${hg_sed_expr}` | |
39 | ||
40 | # Add multiple inclusion protection guard, part one. | |
41 | echo "#ifndef ${header_guard}" >> ${output}T | |
42 | echo "#define ${header_guard}" >> ${output}T | |
43 | ||
2d5bc016 DD |
44 | # A special test to ensure that build-time files don't blindly use |
45 | # config.h. | |
f9a4b91e | 46 | if test x"$output" = x"config.h"; then |
2d5bc016 DD |
47 | echo "#ifdef GENERATOR_FILE" >> ${output}T |
48 | echo "#error config.h is for the host, not build, machine." >> ${output}T | |
49 | echo "#endif" >> ${output}T | |
50 | fi | |
51 | ||
11642c3a ZW |
52 | # Define TARGET_CPU_DEFAULT if the system wants one. |
53 | # This substitutes for lots of *.h files. | |
54 | if [ "$TARGET_CPU_DEFAULT" != "" ]; then | |
2dbe67bb | 55 | echo "#define TARGET_CPU_DEFAULT ($TARGET_CPU_DEFAULT)" >> ${output}T |
11642c3a ZW |
56 | fi |
57 | ||
4977bab6 ZW |
58 | # Provide defines for other macros set in config.gcc for this file. |
59 | for def in $DEFINES; do | |
d5355cb2 JDA |
60 | echo "#ifndef $def" | sed 's/=.*//' >> ${output}T |
61 | echo "# define $def" | sed 's/=/ /' >> ${output}T | |
62 | echo "#endif" >> ${output}T | |
63 | done | |
64 | ||
232b67d9 | 65 | # The first entry in HEADERS may be auto-FOO.h ; |
11642c3a | 66 | # it wants to be included even when not -DIN_GCC. |
77ec4307 SB |
67 | # Postpone including defaults.h until after the insn-* |
68 | # headers, so that the HAVE_* flags are available | |
69 | # when defaults.h gets included. | |
70 | postpone_defaults_h="no" | |
11642c3a | 71 | if [ -n "$HEADERS" ]; then |
4977bab6 ZW |
72 | set $HEADERS |
73 | case "$1" in auto-* ) | |
74 | echo "#include \"$1\"" >> ${output}T | |
11642c3a | 75 | shift |
11642c3a ZW |
76 | ;; |
77 | esac | |
4977bab6 ZW |
78 | if [ $# -ge 1 ]; then |
79 | echo '#ifdef IN_GCC' >> ${output}T | |
80 | for file in "$@"; do | |
77ec4307 SB |
81 | if test x"$file" = x"defaults.h"; then |
82 | postpone_defaults_h="yes" | |
83 | else | |
84 | echo "# include \"$file\"" >> ${output}T | |
85 | fi | |
4977bab6 ZW |
86 | done |
87 | echo '#endif' >> ${output}T | |
88 | fi | |
11642c3a ZW |
89 | fi |
90 | ||
c513ce77 | 91 | # If this is tm.h, now include insn-flags.h only if IN_GCC is defined |
80cf2e08 JM |
92 | # but neither GENERATOR_FILE nor USED_FOR_TARGET is defined. Also |
93 | # include libgcc_tm.h if USED_FOR_TARGET is defined. (Much of this is | |
94 | # temporary.) | |
fb2bf631 | 95 | |
1b0c37d7 | 96 | case $output in |
4977bab6 | 97 | tm.h ) |
2dbe67bb | 98 | cat >> ${output}T <<EOF |
4977bab6 | 99 | #if defined IN_GCC && !defined GENERATOR_FILE && !defined USED_FOR_TARGET |
2dbe67bb DR |
100 | # include "insn-flags.h" |
101 | #endif | |
80cf2e08 JM |
102 | #ifdef USED_FOR_TARGET |
103 | # include "libgcc_tm.h" | |
104 | #endif | |
2dbe67bb | 105 | EOF |
1b0c37d7 ZW |
106 | ;; |
107 | esac | |
11642c3a | 108 | |
77ec4307 SB |
109 | # If we postponed including defaults.h, add the #include now. |
110 | if test x"$postpone_defaults_h" = x"yes"; then | |
111 | echo "# include \"defaults.h\"" >> ${output}T | |
112 | fi | |
113 | ||
5e7537cf NN |
114 | # Add multiple inclusion protection guard, part two. |
115 | echo "#endif /* ${header_guard} */" >> ${output}T | |
116 | ||
11642c3a | 117 | # Avoid changing the actual file if possible. |
2dbe67bb | 118 | if [ -f $output ] && cmp ${output}T $output >/dev/null 2>&1; then |
11642c3a | 119 | echo $output is unchanged >&2 |
2dbe67bb | 120 | rm -f ${output}T |
11642c3a | 121 | else |
2dbe67bb | 122 | mv -f ${output}T $output |
11642c3a ZW |
123 | fi |
124 | ||
125 | # Touch a stamp file for Make's benefit. | |
126 | rm -f cs-$output | |
127 | echo timestamp > cs-$output |