scripts/check-local-headers.sh

   1 #!/bin/bash
   2 # Copyright (C) 2005-2021 Free Software Foundation, Inc.
   3 # This file is part of the GNU C Library.
   4
   5 # The GNU C Library is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU Lesser General Public
   7 # License as published by the Free Software Foundation; either
   8 # version 2.1 of the License, or (at your option) any later version.
   9
  10 # The GNU C Library is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # Lesser General Public License for more details.
  14
  15 # You should have received a copy of the GNU Lesser General Public
  16 # License along with the GNU C Library; if not, see
  17 # <https://www.gnu.org/licenses/>.
  18 #
  19 includedir="$1"
  20 objpfx="$2"
  21
  22 # To avoid long paths.
  23 cd "$objpfx"
  24
  25 # OK if *.os is missing.
  26 shopt -s nullglob
  27
  28 # Search all dependency files for file names in the include directory.
  29 # There are a few system headers we are known to use.
  30 # These include Linux kernel headers (asm*, arch, and linux),
  31 # and Mach kernel headers (mach).
  32 exec ${AWK} -v includedir="$includedir" '
  33 BEGIN {
  34   status = 0
  35   exclude = "^" includedir \
  36     "/(.*-.*-.*/|.*-.*/|)(asm[-/]|arch|linux/|selinux/|mach/|mach_debug/|device/|hurd/(((hurd|ioctl)_types|paths)\\.h|ioctls\\.defs|ihash\\.h|version\\.h)|gd|nss3/|nspr4?/|c\\+\\+/|sys/(capability|sdt(|-config))\\.h|libaudit\\.h)"
  37 }
  38 /^[^ ]/ && $1 ~ /.*:/ { obj = $1 }
  39 {
  40   for (i = 1; i <= NF; ++i) {
  41     if ($i ~ ("^" includedir) && $i !~ exclude) {
  42       print "***", obj, "uses", $i
  43       status = 1
  44     }
  45   }
  46 }
  47 END { exit status }' */*.{o,os,oS}.d