| 1 | ;; Verify that preprocessor symbols are defined in config.in. |
| 2 | |
| 3 | ;; Copyright (C) 2020 Free Software Foundation, Inc. |
| 4 | ;; |
| 5 | ;; This file is part of GDB. |
| 6 | ;; |
| 7 | ;; This program is free software; you can redistribute it and/or modify |
| 8 | ;; it under the terms of the GNU General Public License as published by |
| 9 | ;; the Free Software Foundation; either version 3 of the License, or |
| 10 | ;; (at your option) any later version. |
| 11 | ;; |
| 12 | ;; This program is distributed in the hope that it will be useful, |
| 13 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | ;; GNU General Public License for more details. |
| 16 | ;; |
| 17 | ;; You should have received a copy of the GNU General Public License |
| 18 | ;; along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 | |
| 20 | ;; To use: |
| 21 | ;; cd gdbsupport |
| 22 | ;; emacs --script check-defines.el |
| 23 | |
| 24 | (require 'cl-lib) |
| 25 | |
| 26 | (setq-default case-fold-search nil) |
| 27 | |
| 28 | ;; The currently recognized macros. |
| 29 | (defconst check-regexp "\\_<\\(\\(HAVE\\|PTRACE_TYPE\\|SIZEOF\\)_[a-zA-Z0-9_]+\\)\\_>") |
| 30 | |
| 31 | (defvar check-seen 0) |
| 32 | |
| 33 | ;; Whitelist. These are things that have names like autoconf-created |
| 34 | ;; macros, but that are managed directly in the code. |
| 35 | (put (intern "HAVE_USEFUL_SBRK") :check-ok t) |
| 36 | (put (intern "HAVE_SOCKETS") :check-ok t) |
| 37 | (put (intern "HAVE_F_GETFD") :check-ok t) |
| 38 | (put (intern "HAVE_IS_TRIVIALLY_COPYABLE") :check-ok t) |
| 39 | (put (intern "HAVE_IS_TRIVIALLY_CONSTRUCTIBLE") :check-ok t) |
| 40 | (put (intern "HAVE_DOS_BASED_FILE_SYSTEM") :check-ok t) |
| 41 | |
| 42 | (defun check-read-config.in (file) |
| 43 | (save-excursion |
| 44 | (find-file-read-only file) |
| 45 | (goto-char (point-min)) |
| 46 | (while (re-search-forward "^#undef \\(.+\\)$" nil t) |
| 47 | (let ((name (match-string 1))) |
| 48 | (put (intern name) :check-ok t))))) |
| 49 | |
| 50 | (defun check-one-file (file) |
| 51 | (save-excursion |
| 52 | (find-file-read-only file) |
| 53 | (goto-char (point-min)) |
| 54 | (while (re-search-forward check-regexp nil t) |
| 55 | (let ((name (match-string 1))) |
| 56 | (unless (get (intern name) :check-ok) |
| 57 | (save-excursion |
| 58 | (goto-char (match-beginning 0)) |
| 59 | (cl-incf check-seen) |
| 60 | (message "%s:%d:%d: error: name %s not defined" |
| 61 | file |
| 62 | (line-number-at-pos) |
| 63 | (current-column) |
| 64 | name))))))) |
| 65 | |
| 66 | (defun check-directory (dir) |
| 67 | (dolist (file (directory-files dir t "\\.[ch]$")) |
| 68 | (check-one-file file))) |
| 69 | |
| 70 | (check-read-config.in "config.in") |
| 71 | (check-read-config.in "../gnulib/config.in") |
| 72 | (check-directory ".") |
| 73 | (check-directory "../gdb/nat") |
| 74 | (check-directory "../gdb/target") |
| 75 | |
| 76 | (when (> check-seen 0) |
| 77 | (message "%d errors seen" check-seen)) |