Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 195 insertions, 0 deletions

diff --git a/REORG.TODO/debug/xtrace.sh b/REORG.TODO/debug/xtrace.sh
new file mode 100755
index 0000000000..fd14f298d9
--- /dev/null
+++ b/REORG.TODO/debug/xtrace.sh
@@ -0,0 +1,195 @@
+#! @BASH@
+# Copyright (C) 1999-2017 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 Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 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
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <http://www.gnu.org/licenses/>.
+
+pcprofileso='@SLIBDIR@/libpcprofile.so'
+pcprofiledump='@BINDIR@/pcprofiledump'
+TEXTDOMAIN=libc
+
+# Print usage message.
+do_usage() {
+  printf $"Usage: xtrace [OPTION]... PROGRAM [PROGRAMOPTION]...\n"
+  exit 0
+}
+
+# Refer to --help option.
+help_info() {
+  printf >&2 $"Try \`%s --help' or \`%s --usage' for more information.\n" xtrace xtrace
+  exit 1
+}
+
+# Message for missing argument.
+do_missing_arg() {
+  printf >&2 $"%s: option '%s' requires an argument.\n" xtrace "$1"
+  help_info
+}
+
+# Print help message
+do_help() {
+  printf $"Usage: xtrace [OPTION]... PROGRAM [PROGRAMOPTION]...\n"
+  printf $"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.
+
+"
+  printf $"For bug reporting instructions, please see:\\n%s.\\n" \
+    "@REPORT_BUGS_TO@"
+  exit 0
+}
+
+do_version() {
+  echo 'xtrace @PKGVERSION@@VERSION@'
+  printf $"Copyright (C) %s 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.
+" "2017"
+  printf $"Written by %s.
+" "Ulrich Drepper"
+  exit 0
+}
+
+# Print out function name, file, and line number in a nicely 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 | --v | --ve | --ver | --vers | --versi | --versio | --version)
+    do_version
+    ;;
+  --u | --us | --usa | --usag | --usage)
+    do_usage
+    ;;
+  --)
+    # Stop processing arguments.
+    shift
+    break
+    ;;
+  --*)
+    printf >&2 $"xtrace: unrecognized option \`$1'\n"
+    help_info
+    ;;
+  *)
+    # 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
+  printf >&2 $"No program name given\n"
+  help_info
+fi
+
+# Determine the program name and check whether it exists.
+program=$1
+shift
+if test ! -f "$program"; then
+  printf >&2 $"executable \`$program' not found\n"
+  help_info
+fi
+if test ! -x "$program"; then
+  printf >&2 $"\`$program' is no executable\n"
+  help_info
+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 $COLUMNS); do printf -; done; printf '\n'
+if test -n "$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 -ut xtrace.XXXXXX) || exit
+  trap 'rm -f "$fifo"; exit 1' HUP INT QUIT TERM PIPE
+  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 < $fifo" &
+  termpid=$!
+  $pcprofiledump -u "$fifo" |
+  while read line; do
+     echo "$line" |
+     sed 's/this = \([^,]*\).*/\1/' |
+     addr2line -fC -e "$program"
+  done |
+  while read fct; do
+    read file
+    if test "$fct" != '??' -a "$file" != '??:0'; then
+      format_line "$fct" "$file"
+    fi
+  done
+  read -p "Press return here to close $TERMINAL_PROG($program)."
+  echo > "$fifo"
+  rm "$fifo"
+fi
+
+exit 0
+# Local Variables:
+#  mode:ksh
+# End: