lisp/progmodes/ld-script.el

   1 ;;; ld-script.el --- GNU linker script editing mode for Emacs
   2
   3 ;; Copyright (C) 2003, 2005 Free Software Foundation, Inc.
   4
   5 ;; Author: Masatake YAMATO<jet@gyve.org>
   6 ;; Keywords: languages, faces
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; This program is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; This program is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with this program; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  23 ;; Boston, MA 02110-1301, USA.
  24
  25 ;;; Commentary:
  26
  27 ;; Major mode for editing GNU linker (ld) scripts.
  28
  29 ;;; Code:
  30
  31 ;; Custom
  32 (defgroup ld-script nil
  33   "GNU linker script code editing commands for Emacs."
  34   :prefix "ld-script-"
  35   :group 'languages)
  36
  37 (defvar ld-script-location-counter-face 'ld-script-location-counter)
  38 (defface ld-script-location-counter
  39   '((t (:weight bold :inherit font-lock-builtin-face)))
  40   "Face for location counter in GNU ld script."
  41   :group 'ld-script)
  42 ;; backward-compatibility alias
  43 (put 'ld-script-location-counter-face 'face-alias 'ld-script-location-counter)
  44
  45 ;; Syntax rules
  46 (defvar ld-script-mode-syntax-table
  47   (let ((st (make-syntax-table)))
  48     (modify-syntax-entry ?\  "-"   st)
  49     (modify-syntax-entry ?{ "(}" st)
  50     (modify-syntax-entry ?} "){" st)
  51     (modify-syntax-entry ?\( "()" st)
  52     (modify-syntax-entry ?\) ")(" st)
  53     (modify-syntax-entry ?\[ "(]" st)
  54     (modify-syntax-entry ?\] ")[" st)
  55     (modify-syntax-entry ?_ "w"   st)
  56     (modify-syntax-entry ?. "_"   st)
  57     (modify-syntax-entry ?\\  "\\" st)
  58     (modify-syntax-entry ?: "." st)
  59     (modify-syntax-entry ?, "." st)
  60     (modify-syntax-entry ?? "." st)
  61     (modify-syntax-entry ?= "." st)
  62     (modify-syntax-entry ?* ". 23" st)
  63     (modify-syntax-entry ?/ ". 14" st)
  64     (modify-syntax-entry ?+ "." st)
  65     (modify-syntax-entry ?- "." st)
  66     (modify-syntax-entry ?! "." st)
  67     (modify-syntax-entry ?~ "." st)
  68     (modify-syntax-entry ?% "." st)
  69     (modify-syntax-entry ?< "." st)
  70     (modify-syntax-entry ?> "." st)
  71     (modify-syntax-entry ?& "." st)
  72     (modify-syntax-entry ?| "." st)
  73     (modify-syntax-entry ?\" "\"" st)
  74     st)
  75   "Syntax table used while in `ld-script-mode'.")
  76
  77 ;; Font lock keywords
  78 (defvar ld-script-keywords
  79   '("ENTRY" "INCLUDE" "INPUT" "GROUP"
  80     "OUTPUT" "SEARCH_DIR" "STARTUP"
  81     "OUTPUT_FORMAT" "TARGET"
  82     "ASSERT" "EXTERN" "FORCE_COMMON_ALLOCATION" "NOCROSSREFS" "OUTPUT_ARCH"
  83     "PROVIDE"
  84     "SECTIONS" "SORT" "COMMON" "KEEP"
  85     "BYTE" "SHORT" "LONG" "QUAD" "SQAD"
  86     "FILL"
  87     "CREATE_OBJECT_SYMBOLS"
  88     "CONSTRUCTORS"
  89     "NOLOAD" "DSECT" "COPY" "INFO" "OVERLAY"
  90     "AT"
  91     "MEMORY"
  92     "PHDRS" "FILEHDR" "FLAGS"
  93     "PT_NULL" "PT_LOAD" "PT_DYNAMIC" "PT_INTERP" "PT_NONE" "PT_SHLIB" "PT_PHDR"
  94     "VERSION")
  95   "Keywords used of GNU ld script.")
  96
  97 (defvar ld-script-builtins
  98   '("ABSOLUTE"
  99     "ADDR"
 100     "ALIGN"
 101     "BLOCK"
 102     "DEFINED"
 103     "LOADADDR"
 104     "MAX"
 105     "MIN"
 106     "NEXT"
 107     "SIZEOF"
 108     "SIZEOF_HEADERS"
 109     "sizeof_headers")
 110   "Builtin functions of GNU ld script.")
 111
 112 (defvar ld-script-font-lock-keywords
 113   `((,(regexp-opt ld-script-keywords 'words)
 114      1 font-lock-keyword-face)
 115     (,(regexp-opt ld-script-builtins 'words)
 116      1 font-lock-builtin-face)
 117     ("/DISCARD/" . font-lock-warning-face)
 118     ("##\\|#[^#\n]+$"  . font-lock-preprocessor-face)
 119     ("\\W\\(\\.\\)\\W" 1 ld-script-location-counter-face)
 120     )
 121   "Default font-lock-keywords for `ld-script-mode'.")
 122
 123 ;;;###autoload
 124 (add-to-list 'auto-mode-alist '("\\.lds" . ld-script-mode))
 125
 126 ;;;###autoload
 127 (define-derived-mode ld-script-mode nil "LD-Script"
 128    "A major mode to edit GNU ld script files"
 129   (set (make-local-variable 'comment-start) "/* ")
 130   (set (make-local-variable 'comment-end)   " */")
 131   (set (make-local-variable 'indent-line-function) #'indent-relative)
 132   (set (make-local-variable 'font-lock-defaults) '(ld-script-font-lock-keywords nil)))
 133
 134 (provide 'ld-script)
 135
 136 ;;; arch-tag: 83280b6b-e6fc-4d00-a630-922d7aec5593
 137 ;;; ld-script.el ends here