| #!/usr/bin/gawk -f |
| # -*- tab-width: 4; indent-tabs-mode: t -*- |
| # |
| # This file is part of the LibreOffice project. |
| # |
| # This Source Code Form is subject to the terms of the Mozilla Public |
| # License, v. 2.0. If a copy of the MPL was not distributed with this |
| # file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| # |
| |
| # Generate a list of files included by the C++ compiler during the build |
| # sorted by the total bytes an included file contributed to preprocessor input. |
| # usage: first do a full build with "make check", then run this from $BUILDDIR |
| |
| # NOTE: by default gbuild does not generate dependencies for system headers |
| # (in particular the C++ standard library), so those will NOT be counted |
| |
| BEGIN { |
| cmd = "find workdir/Dep/CxxObject/ -name *.d | xargs cat" |
| while ((cmd | getline) > 0) { |
| if ($0 ~ /^ .*\\$/) { |
| gsub(/^ /, ""); |
| gsub(/ *\\$/, ""); |
| includes[$1]++ |
| if ($2) { |
| # GCC emits 2 per line if short enough! |
| includes[$2]++ |
| } |
| } |
| } |
| exit |
| } |
| |
| END { |
| for (inc in includes) { |
| cmd = "wc -c " inc |
| if ((cmd | getline) < 0) |
| print "ERROR on: " cmd |
| sizes[inc] = $1 # $0 is wc -c output, $1 is size |
| totals[inc] = $1 * includes[inc] |
| totalsize += totals[inc] |
| close(cmd) |
| } |
| PROCINFO["sorted_in"] = "@val_num_desc" |
| printf "Sum total bytes included (excluding system headers): %'d\n", totalsize |
| print "Total bytes\tSize\t Occurrences\tFilename" |
| OFS="\t" |
| for (inc in totals) { |
| printf "%'13d\t%'7d\t%'8d\t%s\n", totals[inc], sizes[inc], includes[inc], inc |
| } |
| } |
| |
| # vim: set noet sw=4 ts=4: |