gdb/gdbserver/
[deliverable/binutils-gdb.git] / gdb / cc-with-index.sh
1 #! /bin/sh
2 # Wrapper around gcc to add the .gdb_index section when running the testsuite.
3
4 # Copyright (C) 2010-2012 Free Software Foundation, Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 # This program requires gdb and objcopy in addition to gcc.
19 # The default values are gdb from the build tree and objcopy from $PATH.
20 # They may be overridden by setting environment variables GDB and OBJCOPY
21 # respectively.
22 # We assume the current directory is either $obj/gdb or $obj/gdb/testsuite.
23 #
24 # Example usage:
25 #
26 # bash$ cd $objdir/gdb/testsuite
27 # bash$ runtest \
28 # CC_FOR_TARGET="/bin/sh $srcdir/cc-with-index.sh gcc" \
29 # CXX_FOR_TARGET="/bin/sh $srcdir/cc-with-index.sh g++"
30 #
31 # For documentation on index files: info -f gdb.info -n "Index Files"
32
33 myname=cc-with-index.sh
34
35 if [ -z "$GDB" ]
36 then
37 if [ -f ./gdb ]
38 then
39 GDB="./gdb"
40 elif [ -f ../gdb ]
41 then
42 GDB="../gdb"
43 elif [ -f ../../gdb ]
44 then
45 GDB="../../gdb"
46 else
47 echo "$myname: unable to find usable gdb" >&2
48 exit 1
49 fi
50 fi
51
52 OBJCOPY=${OBJCOPY:-objcopy}
53
54 have_link=unknown
55 next_is_output_file=no
56 output_file=a.out
57
58 for arg in "$@"
59 do
60 if [ "$next_is_output_file" = "yes" ]
61 then
62 output_file="$arg"
63 next_is_output_file=no
64 continue
65 fi
66
67 # Poor man's gcc argument parser.
68 # We don't need to handle all arguments, we just need to know if we're
69 # doing a link and what the output file is.
70 # It's not perfect, but it seems to work well enough for the task at hand.
71 case "$arg" in
72 "-c") have_link=no ;;
73 "-E") have_link=no ;;
74 "-S") have_link=no ;;
75 "-o") next_is_output_file=yes ;;
76 esac
77 done
78
79 if [ "$next_is_output_file" = "yes" ]
80 then
81 echo "$myname: Unable to find output file" >&2
82 exit 1
83 fi
84
85 if [ "$have_link" = "no" ]
86 then
87 "$@"
88 exit $?
89 fi
90
91 index_file="${output_file}.gdb-index"
92 if [ -f "$index_file" ]
93 then
94 echo "$myname: Index file $index_file exists, won't clobber." >&2
95 exit 1
96 fi
97
98 output_dir="${output_file%/*}"
99 [ "$output_dir" = "$output_file" ] && output_dir="."
100
101 "$@"
102 rc=$?
103 [ $rc != 0 ] && exit $rc
104 if [ ! -f "$output_file" ]
105 then
106 echo "$myname: Internal error: $output_file missing." >&2
107 exit 1
108 fi
109
110 $GDB --batch-silent -nx -ex "file $output_file" -ex "save gdb-index $output_dir"
111 rc=$?
112 [ $rc != 0 ] && exit $rc
113
114 # GDB might not always create an index. Cope.
115 if [ -f "$index_file" ]
116 then
117 $OBJCOPY --add-section .gdb_index="$index_file" \
118 --set-section-flags .gdb_index=readonly \
119 "$output_file" "$output_file"
120 rc=$?
121 else
122 rc=0
123 fi
124
125 rm -f "$index_file"
126 exit $rc
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