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sourceware.org Git - glibc.git/blob - debug/xtrace.sh
2 # Copyright (C) 1999, 2001-2004, 2005, 2006 Free Software Foundation, Inc.
3 # This file is part of the GNU C Library.
4 # Contributed by Ulrich Drepper <drepper@gnu.org>, 1999.
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.
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.
16 # You should have received a copy of the GNU Lesser General Public
17 # License along with the GNU C Library; if not, write to the Free
18 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 pcprofileso
=@SLIBDIR@
/libpcprofile.so
22 pcprofiledump
=@BINDIR@
/pcprofiledump
25 # Print usage message.
27 printf $
"Usage: xtrace [OPTION]... PROGRAM [PROGRAMOPTION]...\n"
31 # Refer to --help option.
33 printf >&2 $
"Try \`xtrace --help' for more information.\n"
37 # Message for missing argument.
39 printf >&2 $
"xtrace: option \`$1' requires an argument.\n"
45 printf $
"Usage: xtrace [OPTION]... PROGRAM [PROGRAMOPTION]...\n"
46 printf $
"Trace execution of program by printing currently executed function.
48 --data=FILE Don't run the program, just print the data from FILE.
50 -?,--help Print this help and exit
51 --usage Give a short usage message
52 -V,--version Print version information and exit
54 Mandatory arguments to long options are also mandatory for any corresponding
57 For bug reporting instructions, please see:
58 <http://www.gnu.org/software/libc/bugs.html>.\n"
63 echo 'xtrace (GNU libc) @VERSION@'
64 printf $
"Copyright (C) %s Free Software Foundation, Inc.
65 This is free software; see the source for copying conditions. There is NO
66 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
68 printf $
"Written by %s.
73 # Print out function name, file, and line number in a nicely formatted way.
78 width
=$
(expr $COLUMNS - 30)
79 filelen
=$
(expr length
$file)
80 if test "$filelen" -gt "$width"; then
81 rwidth
=$
(expr $width - 3)
82 file="...$(expr substr $file $(expr 1 + $filelen - $rwidth) $rwidth)"
84 printf '%-20s %-*s %6s\n' $fct $width $file $line
88 # If the variable COLUMNS is not set do this now.
89 COLUMNS
=${COLUMNS:-80}
91 # If `TERMINAL_PROG' is not set, set it to `xterm'.
92 TERMINAL_PROG
=${TERMINAL_PROG:-xterm}
94 # The data file to process, if any.
97 # Process arguments. But stop as soon as the program name is found.
98 while test $# -gt 0; do
100 --d |
--da |
--dat |
--data)
101 if test $# -eq 1; then
107 --d=* |
--da=* |
--dat=* |
--data=*)
110 -\? |
--h |
--he |
--hel |
--help)
113 -V |
--v |
--ve |
--ver |
--vers |
--versi |
--versio |
--version)
116 --u |
--us |
--usa |
--usag |
--usage)
120 # Stop processing arguments.
125 printf >&2 $
"xtrace: unrecognized option \`$1'\n"
129 # Unknown option. This means the rest is the program name and parameters.
136 # See whether any arguments are left.
137 if test $# -eq 0; then
138 printf >&2 $
"No program name given\n"
142 # Determine the program name and check whether it exists.
145 if test ! -f "$program"; then
146 printf >&2 $
"executable \`$program' not found\n"
149 if test ! -x "$program"; then
150 printf >&2 $
"\`$program' is no executable\n"
154 # We have two modes. If a data file is given simply print the included data.
155 printf "%-20s %-*s %6s\n" Function $
(expr $COLUMNS - 30) File Line
156 for i
in $
(seq 1 $COLUMNS); do printf -; done; printf '\n'
157 if test -n "$data"; then
158 $pcprofiledump "$data" |
159 sed 's/this = \([^,]*\).*/\1/' |
160 addr2line
-fC -e "$program" |
163 if test "$fct" != '??' -a "$file" != '??:0'; then
164 format_line
$fct $file
168 fifo
=$
(mktemp
-u ${TMPDIR:-/tmp}/xtrace.XXXXXX
)
169 mkfifo -m 0600 $fifo ||
exit 1
170 trap 'rm $fifo; exit 1' SIGINT SIGTERM SIGPIPE
172 # Now start the program and let it write to the FIFO.
173 $TERMINAL_PROG -T "xtrace - $program $*" -e /bin
/sh
-c "LD_PRELOAD=$pcprofileso PCPROFILE_OUTPUT=$fifo $program $*; read < $fifo" &
175 $pcprofiledump -u $fifo |
178 sed 's/this = \([^,]*\).*/\1/' |
179 addr2line
-fC -e $program
183 if test "$fct" != '??' -a "$file" != '??:0'; then
184 format_line
$fct $file
187 read -p "Press return here to close $TERMINAL_PROG($program)."
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