lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | #! /bin/sh |
| 2 | # Copyright (C) 1998-2015 Free Software Foundation, Inc. |
| 3 | # This file is part of the GNU C Library. |
| 4 | # Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. |
| 5 | |
| 6 | # The GNU C Library is free software; you can redistribute it and/or |
| 7 | # modify it under the terms of the GNU Lesser General Public |
| 8 | # License as published by the Free Software Foundation; either |
| 9 | # version 2.1 of the License, or (at your option) any later version. |
| 10 | |
| 11 | # The GNU C Library 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 GNU |
| 14 | # Lesser General Public License for more details. |
| 15 | |
| 16 | # You should have received a copy of the GNU Lesser General Public |
| 17 | # License along with the GNU C Library; if not, see |
| 18 | # <http://www.gnu.org/licenses/>. |
| 19 | |
| 20 | if test $# -eq 0; then |
| 21 | echo "$0: missing program name" >&2 |
| 22 | echo "Try \`$0 --help' for more information." >&2 |
| 23 | exit 1 |
| 24 | fi |
| 25 | |
| 26 | prog="$1" |
| 27 | shift |
| 28 | |
| 29 | if test $# -eq 0; then |
| 30 | case "$prog" in |
| 31 | --h | --he | --hel | --help) |
| 32 | echo 'Usage: catchsegv PROGRAM ARGS...' |
| 33 | echo ' --help print this help, then exit' |
| 34 | echo ' --version print version number, then exit' |
| 35 | echo 'For bug reporting instructions, please see:' |
| 36 | cat <<\EOF |
| 37 | @REPORT_BUGS_TO@. |
| 38 | EOF |
| 39 | exit 0 |
| 40 | ;; |
| 41 | --v | --ve | --ver | --vers | --versi | --versio | --version) |
| 42 | echo 'catchsegv @PKGVERSION@@VERSION@' |
| 43 | echo 'Copyright (C) 2015 Free Software Foundation, Inc. |
| 44 | This is free software; see the source for copying conditions. There is NO |
| 45 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 46 | Written by Ulrich Drepper.' |
| 47 | exit 0 |
| 48 | ;; |
| 49 | *) |
| 50 | ;; |
| 51 | esac |
| 52 | fi |
| 53 | |
| 54 | segv_output=`mktemp ${TMPDIR:-/tmp}/segv_output.XXXXXX` || exit |
| 55 | |
| 56 | # Redirect stderr to avoid termination message from shell. |
| 57 | (exec 3>&2 2>/dev/null |
| 58 | LD_PRELOAD=${LD_PRELOAD:+${LD_PRELOAD}:}@SLIB@/libSegFault.so \ |
| 59 | SEGFAULT_USE_ALTSTACK=1 \ |
| 60 | SEGFAULT_OUTPUT_NAME=$segv_output \ |
| 61 | "$prog" ${1+"$@"} 2>&3 3>&-) |
| 62 | exval=$? |
| 63 | |
| 64 | # Check for output. Even if the program terminated correctly it might |
| 65 | # be that a minor process (clone) failed. Therefore we do not check the |
| 66 | # exit code. |
| 67 | if test -s "$segv_output"; then |
| 68 | # The program caught a signal. The output is in the file with the |
| 69 | # name we have in SEGFAULT_OUTPUT_NAME. In the output the names of |
| 70 | # functions in shared objects are available, but names in the static |
| 71 | # part of the program are not. We use addr2line to get this information. |
| 72 | case $prog in |
| 73 | */*) ;; |
| 74 | *) |
| 75 | old_IFS=$IFS |
| 76 | IFS=: |
| 77 | for p in $PATH; do |
| 78 | test -n "$p" || p=. |
| 79 | if test -f "$p/$prog"; then |
| 80 | prog=$p/$prog |
| 81 | break |
| 82 | fi |
| 83 | done |
| 84 | IFS=$old_IFS |
| 85 | ;; |
| 86 | esac |
| 87 | sed '/Backtrace/q' "$segv_output" |
| 88 | sed '1,/Backtrace/d' "$segv_output" | |
| 89 | (while read line; do |
| 90 | line=`echo $line | sed "s@^$prog\\(\\[.*\\)@\1@"` |
| 91 | case "$line" in |
| 92 | \[*) addr=`echo "$line" | sed 's/^\[\(.*\)\]$/\1/'` |
| 93 | complete=`addr2line -f -e "$prog" $addr 2>/dev/null` |
| 94 | if test $? -eq 0; then |
| 95 | echo "`echo "$complete"|sed 'N;s/\(.*\)\n\(.*\)/\2(\1)/;'`$line" |
| 96 | else |
| 97 | echo "$line" |
| 98 | fi |
| 99 | ;; |
| 100 | *) echo "$line" |
| 101 | ;; |
| 102 | esac |
| 103 | done) |
| 104 | fi |
| 105 | rm -f "$segv_output" |
| 106 | |
| 107 | exit $exval |