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glibc/debug/xtrace.sh
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#! @BASH@ | |
# Copyright (C) 1999 Free Software Foundation, Inc. | |
# This file is part of the GNU C Library. | |
# Contributed by Ulrich Drepper <drepper@gnu.org>, 1999. | |
# The GNU C Library is free software; you can redistribute it and/or | |
# modify it under the terms of the GNU Library General Public License as | |
# published by the Free Software Foundation; either version 2 of the | |
# License, or (at your option) any later version. | |
# The GNU C Library 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 | |
# Library General Public License for more details. | |
# You should have received a copy of the GNU Library General Public | |
# License along with the GNU C Library; see the file COPYING.LIB. If not, | |
# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
# Boston, MA 02111-1307, USA. | |
pcprofileso=@LIBDIR@/libpcprofile.so | |
pcprofiledump=@BINDIR@/pcprofiledump | |
# Print usage message. | |
do_usage() { | |
echo >&2 $"Try \`xtrace --help' for more information." | |
exit 1 | |
} | |
# Message for missing argument. | |
do_missing_arg() { | |
echo >&2 $"xtrace: option \`$1' requires an argument" | |
do_usage | |
} | |
# Print help message | |
do_help() { | |
echo $"Usage: xtrace [OPTION]... PROGRAM [PROGRAMOPTION]... | |
Trace execution of program by printing currently executed function. | |
--data=FILE Don't run the program, just print the data from FILE. | |
-?,--help Print this help and exit | |
--usage Give a short usage message | |
-V,--version Print version information and exit | |
Mandatory arguments to long options are also mandatory for any corresponding | |
short options. | |
Report bugs using the \`glibcbug' script to <bugs@gnu.org>." | |
exit 0 | |
} | |
do_version() { | |
echo 'xtrace (GNU libc) @VERSION@' | |
echo $"Copyright (C) 1999 Free Software Foundation, Inc. | |
This is free software; see the source for copying conditions. There is NO | |
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
Written by Ulrich Drepper." | |
exit 0 | |
} | |
# Print out function name, file, and line number is a nice formatted way. | |
format_line() { | |
fct=$1 | |
file=${2%%:*} | |
line=${2##*:} | |
width=$(expr $COLUMNS - 30) | |
filelen=$(expr length $file) | |
if test "$filelen" -gt "$width"; then | |
rwidth=$(expr $width - 3) | |
file="...$(expr substr $file $(expr 1 + $filelen - $rwidth) $rwidth)" | |
fi | |
printf '%-20s %-*s %6s\n' $fct $width $file $line | |
} | |
# If the variable COLUMNS is not set do this now. | |
COLUMNS=${COLUMNS:-80} | |
# If `TERMINAL_PROG' is not set, set it to `xterm'. | |
TERMINAL_PROG=${TERMINAL_PROG:-xterm} | |
# The data file to process, if any. | |
data= | |
# Process arguments. But stop as soon as the program name is found. | |
while test $# -gt 0; do | |
case "$1" in | |
--d | --da | --dat | --data) | |
if test $# -eq 1; then | |
do_missing_arg $1 | |
fi | |
shift | |
data="$1" | |
;; | |
--d=* | --da=* | --dat=* | --data=*) | |
data=${1##*=} | |
;; | |
-? | --h | --he | --hel | --help) | |
do_help | |
;; | |
--v | --ve | --ver | --vers | --versi | --versio | --version) | |
do_version | |
;; | |
--) | |
# Stop processing arguments. | |
shift | |
break | |
;; | |
--help) | |
do_help | |
;; | |
--version) | |
do_version | |
;; | |
--*) | |
echo >&2 $"memprof: unrecognized option \`$1'" | |
do_usage | |
;; | |
*) | |
# Unknown option. This means the rest is the program name and parameters. | |
break | |
;; | |
esac | |
shift | |
done | |
# See whether any arguments are left. | |
if test $# -eq 0; then | |
echo >&2 $"No program name given" | |
do_usage | |
fi | |
# Determine the program name and check whether it exists. | |
program=$1 | |
shift | |
if test ! -f "$program"; then | |
echo >2& $"executable \`$program' not found" | |
do_usage | |
fi | |
if test ! -x "$program"; then | |
echo >&2 $"\`$program' is no executable" | |
do_usage | |
fi | |
# We have two modes. If a data file is given simply print the included data. | |
printf "%-20s %-*s %6s\n" Function $(expr $COLUMNS - 30) File Line | |
for i in $(seq 1 $COLUMNS); do echo -n -; done; echo | |
if test -n "$data"; then | |
$pcprofiledump "$data" | | |
sed 's/this = \([^,]*\).*/\1/' | | |
addr2line -fC -e "$program" | | |
while read fct; do | |
read file | |
if test "$fct" != '??' -a "$file" != '??:0'; then | |
format_line $fct $file | |
fi | |
done | |
else | |
fifo=$(mktemp -u ${TMPDIR:-/tmp}/xprof.XXXXXX) | |
mkfifo -m 0600 $fifo || exit 1 | |
# Now start the program and let it write to the FIFO. | |
$TERMINAL_PROG -T "xtrace - $program $*" -e /bin/sh -c "LD_PRELOAD=$pcprofileso PCPROFILE_OUTPUT=$fifo $program $*; read $fifo" & | |
termpid=$! | |
$pcprofiledump $fifo | | |
sed 's/this = \([^,]*\).*/\1/' | | |
addr2line -fC -e $program | | |
while read fct; do | |
read file | |
if test "$fct" != '??' -a "$file" != '??:0'; then | |
format_line $fct $file | |
fi | |
done | |
read -p "Press return to end the program." | |
echo > $fifo | |
rm $fifo | |
fi | |
exit 0 | |
# Local Variables: | |
# mode:ksh | |
# End: |