summaryrefslogtreecommitdiff
path: root/gcc/config/print-sysroot-suffix.sh
blob: 55579ad864bc66975858fbc0668ea0572bb04997 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
#! /bin/sh
# Script to generate SYSROOT_SUFFIX_SPEC equivalent to MULTILIB_OSDIRNAMES
# Arguments are MULTILIB_OSDIRNAMES, MULTILIB_OPTIONS and MULTILIB_MATCHES.

# Copyright (C) 2009 Free Software Foundation, Inc.

# This file is part of GCC.

# GCC is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.

# GCC is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# for more details.

# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.  

# This shell script produces a header file fragment that defines
# SYSROOT_SUFFIX_SPEC.  It assumes that the sysroots will have the same
# structure and names used by the multilibs.

# Invocation:
#   print-sysroot-suffix.sh \
#          MULTILIB_OSDIRNAMES \
#          MULTILIB_OPTIONS \
#          MULTILIB_MATCHES \
#      > t-sysroot-suffix.h

# The three options exactly correspond to the variables of the same
# names defined in the tmake_file fragments.

# Example:
#   sh ./gcc/config/print-sysroot-suffix.sh "a=A" "a b/c/d" ""
# =>
#   #undef SYSROOT_SUFFIX_SPEC
#   #define SYSROOT_SUFFIX_SPEC "" \
#   "%{a:" \
#     "%{b:A/b/;" \
#     "c:A/c/;" \
#     "d:A/d/;" \
#     ":A/};" \
#   ":}"

# The script uses temporary subscripts in order to permit a recursive
# algorithm without the use of functions.

set -e

dirnames="$1"
options="$2"
matches="$3"

cat > print-sysroot-suffix3.sh <<\EOF
#! /bin/sh
# Print all the multilib matches for this option
result="$1"
EOF
for x in $matches; do
  l=`echo $x | sed -e 's/=.*$//' -e 's/?/=/g'`
  r=`echo $x | sed -e 's/^.*=//' -e 's/?/=/g'`
  echo "[ \"\$1\" = \"$l\" ] && result=\"\$result|$r\"" >> print-sysroot-suffix3.sh
done
echo 'echo $result' >> print-sysroot-suffix3.sh
chmod +x print-sysroot-suffix3.sh

cat > print-sysroot-suffix2.sh <<\EOF
#! /bin/sh
# Recursive script to enumerate all multilib combinations, match against
# multilib directories and output a spec string of the result.
# Will fold identical trees.

padding="$1"
optstring="$2"
shift 2
n="\" \\
$padding\""
if [ $# = 0 ]; then
EOF

pat=
for x in $dirnames; do
  p=`echo $x | sed -e 's,=!,/$=/,'`
  pat="$pat -e 's=^//$p='"
done
echo '  optstring=`echo "/$optstring" | sed '"$pat\`" >> print-sysroot-suffix2.sh
cat >> print-sysroot-suffix2.sh <<\EOF
  case $optstring in
  //*)
    ;;
  *)
    echo "$optstring"
    ;;
  esac
else
  thisopt="$1"
  shift
  bit=
  lastcond=
  result=
  for x in `echo "$thisopt" | sed -e 's,/, ,g'`; do
    case $x in
EOF
for x in `echo "$options" | sed -e 's,/, ,g'`; do
  match=`./print-sysroot-suffix3.sh "$x"`
  echo "$x) optmatch=\"$match\" ;;" >> print-sysroot-suffix2.sh
done
cat >> print-sysroot-suffix2.sh <<\EOF
    esac
    bit=`"$0" "$padding  " "$optstring$x/" "$@"`
    if [ -z "$lastopt" ]; then
      lastopt="$optmatch"
    else
      if [ "$lastbit" = "$bit" ]; then
	lastopt="$lastopt|$optmatch"
      else
	result="$result$lastopt:$lastbit;$n"
	lastopt="$optmatch"
      fi
    fi
    lastbit="$bit"
  done
  bit=`"$0" "$padding  " "$optstring" "$@"`
  if [ "$bit" = "$lastbit" ]; then
    if [ -z "$result" ]; then
      echo "$bit"
    else
      echo "$n%{$result:$bit}"
    fi
  else
    echo "$n%{$result$lastopt:$lastbit;$n:$bit}"
  fi
fi
EOF

chmod +x ./print-sysroot-suffix2.sh
result=`./print-sysroot-suffix2.sh "" "/" $options`
echo "#undef SYSROOT_SUFFIX_SPEC"
echo "#define SYSROOT_SUFFIX_SPEC \"$result\""
rm print-sysroot-suffix2.sh
rm print-sysroot-suffix3.sh