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11642c3a ZW |
1 | #! /bin/sh |
2 | ||
d1e082c2 | 3 | # Copyright (C) 2001-2013 Free Software Foundation, Inc. |
4977bab6 ZW |
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 | |
9dcd6f09 | 8 | # the Free Software Foundation; either version 3, or (at your option) |
4977bab6 ZW |
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 | |
9dcd6f09 NC |
17 | # along with GCC; see the file COPYING3. If not see |
18 | # <http://www.gnu.org/licenses/>. | |
4977bab6 ZW |
19 | |
20 | ||
21 | # Generate gcc's various configuration headers: | |
80cf2e08 | 22 | # config.h, tconfig.h, bconfig.h, tm.h, libgcc_tm.h, and tm_p.h. |
4977bab6 ZW |
23 | # $1 is the file to generate. DEFINES, HEADERS, and possibly |
24 | # TARGET_CPU_DEFAULT are expected to be set in the environment. | |
11642c3a ZW |
25 | |
26 | if [ -z "$1" ]; then | |
4977bab6 ZW |
27 | echo "Usage: DEFINES='list' HEADERS='list' \\" >&2 |
28 | echo " [TARGET_CPU_DEFAULT='default'] mkconfig.sh FILE" >&2 | |
11642c3a ZW |
29 | exit 1 |
30 | fi | |
31 | ||
32 | output=$1 | |
2dbe67bb | 33 | rm -f ${output}T |
11642c3a | 34 | |
5e7537cf NN |
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}" >> ${output}T | |
42 | ||
2d5bc016 DD |
43 | # A special test to ensure that build-time files don't blindly use |
44 | # config.h. | |
f9a4b91e | 45 | if test x"$output" = x"config.h"; then |
2d5bc016 DD |
46 | echo "#ifdef GENERATOR_FILE" >> ${output}T |
47 | echo "#error config.h is for the host, not build, machine." >> ${output}T | |
48 | echo "#endif" >> ${output}T | |
49 | fi | |
50 | ||
11642c3a ZW |
51 | # Define TARGET_CPU_DEFAULT if the system wants one. |
52 | # This substitutes for lots of *.h files. | |
53 | if [ "$TARGET_CPU_DEFAULT" != "" ]; then | |
2dbe67bb | 54 | echo "#define TARGET_CPU_DEFAULT ($TARGET_CPU_DEFAULT)" >> ${output}T |
11642c3a ZW |
55 | fi |
56 | ||
4977bab6 ZW |
57 | # Provide defines for other macros set in config.gcc for this file. |
58 | for def in $DEFINES; do | |
d5355cb2 JDA |
59 | echo "#ifndef $def" | sed 's/=.*//' >> ${output}T |
60 | echo "# define $def" | sed 's/=/ /' >> ${output}T | |
61 | echo "#endif" >> ${output}T | |
62 | done | |
63 | ||
232b67d9 | 64 | # The first entry in HEADERS may be auto-FOO.h ; |
11642c3a | 65 | # it wants to be included even when not -DIN_GCC. |
77ec4307 SB |
66 | # Postpone including defaults.h until after the insn-* |
67 | # headers, so that the HAVE_* flags are available | |
68 | # when defaults.h gets included. | |
69 | postpone_defaults_h="no" | |
11642c3a | 70 | if [ -n "$HEADERS" ]; then |
4977bab6 ZW |
71 | set $HEADERS |
72 | case "$1" in auto-* ) | |
73 | echo "#include \"$1\"" >> ${output}T | |
11642c3a | 74 | shift |
11642c3a ZW |
75 | ;; |
76 | esac | |
4977bab6 ZW |
77 | if [ $# -ge 1 ]; then |
78 | echo '#ifdef IN_GCC' >> ${output}T | |
79 | for file in "$@"; do | |
77ec4307 SB |
80 | if test x"$file" = x"defaults.h"; then |
81 | postpone_defaults_h="yes" | |
82 | else | |
83 | echo "# include \"$file\"" >> ${output}T | |
84 | fi | |
4977bab6 ZW |
85 | done |
86 | echo '#endif' >> ${output}T | |
87 | fi | |
11642c3a ZW |
88 | fi |
89 | ||
c513ce77 | 90 | # If this is tm.h, now include insn-flags.h only if IN_GCC is defined |
852b75ed RO |
91 | # but neither GENERATOR_FILE nor USED_FOR_TARGET is defined. (Much of this |
92 | # is temporary.) | |
fb2bf631 | 93 | |
1b0c37d7 | 94 | case $output in |
4977bab6 | 95 | tm.h ) |
2dbe67bb | 96 | cat >> ${output}T <<EOF |
4977bab6 | 97 | #if defined IN_GCC && !defined GENERATOR_FILE && !defined USED_FOR_TARGET |
2dbe67bb DR |
98 | # include "insn-flags.h" |
99 | #endif | |
100 | EOF | |
1b0c37d7 ZW |
101 | ;; |
102 | esac | |
11642c3a | 103 | |
77ec4307 SB |
104 | # If we postponed including defaults.h, add the #include now. |
105 | if test x"$postpone_defaults_h" = x"yes"; then | |
106 | echo "# include \"defaults.h\"" >> ${output}T | |
107 | fi | |
108 | ||
5e7537cf NN |
109 | # Add multiple inclusion protection guard, part two. |
110 | echo "#endif /* ${header_guard} */" >> ${output}T | |
111 | ||
11642c3a | 112 | # Avoid changing the actual file if possible. |
2dbe67bb | 113 | if [ -f $output ] && cmp ${output}T $output >/dev/null 2>&1; then |
11642c3a | 114 | echo $output is unchanged >&2 |
2dbe67bb | 115 | rm -f ${output}T |
11642c3a | 116 | else |
2dbe67bb | 117 | mv -f ${output}T $output |
11642c3a ZW |
118 | fi |
119 | ||
120 | # Touch a stamp file for Make's benefit. | |
121 | rm -f cs-$output | |
122 | echo timestamp > cs-$output |