code.delx.au - gnu-emacs/blob - lisp/progmodes/ld-script.el

   1 ;;; ld-script.el --- GNU linker script editing mode for Emacs
   2
   3 ;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
   4 ;; Free Software Foundation, Inc.
   5
   6 ;; Author: Masatake YAMATO<jet@gyve.org>
   7 ;; Keywords: languages, faces
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; This program is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 2, or (at your option)
  14 ;; any later version.
  15
  16 ;; This program is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with this program; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24 ;; Boston, MA 02110-1301, USA.
  25
  26 ;;; Commentary:
  27
  28 ;; Major mode for editing GNU linker (ld) scripts.
  29
  30 ;;; Code:
  31
  32 ;; Custom
  33 (defgroup ld-script nil
  34   "GNU linker script code editing commands for Emacs."
  35   :prefix "ld-script-"
  36   :group 'languages)
  37
  38 (defvar ld-script-location-counter-face 'ld-script-location-counter)
  39 (defface ld-script-location-counter
  40   '((t :weight bold :inherit font-lock-builtin-face))
  41   "Face for location counter in GNU ld script."
  42   :group 'ld-script)
  43
  44 ;; Syntax rules
  45 (defvar ld-script-mode-syntax-table
  46   (let ((st (make-syntax-table)))
  47     (modify-syntax-entry ?\  "-"   st)
  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 ?_ "w"   st)
  55     (modify-syntax-entry ?. "_"   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 ?* ". 23" st)
  62     (modify-syntax-entry ?/ ". 14" st)
  63     (modify-syntax-entry ?+ "." 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     st)
  74   "Syntax table used while in `ld-script-mode'.")
  75
  76 ;; Font lock keywords
  77 (defvar ld-script-keywords
  78   '("ENTRY" "INCLUDE" "INPUT" "GROUP"
  79     "OUTPUT" "SEARCH_DIR" "STARTUP"
  80     "OUTPUT_FORMAT" "TARGET"
  81     "ASSERT" "EXTERN" "FORCE_COMMON_ALLOCATION" "NOCROSSREFS" "OUTPUT_ARCH"
  82     "PROVIDE"
  83     "SECTIONS" "SORT" "COMMON" "KEEP"
  84     "BYTE" "SHORT" "LONG" "QUAD" "SQAD"
  85     "FILL"
  86     "CREATE_OBJECT_SYMBOLS"
  87     "CONSTRUCTORS"
  88     "NOLOAD" "DSECT" "COPY" "INFO" "OVERLAY"
  89     "AT"
  90     "MEMORY"
  91     "PHDRS" "FILEHDR" "FLAGS"
  92     "PT_NULL" "PT_LOAD" "PT_DYNAMIC" "PT_INTERP" "PT_NONE" "PT_SHLIB" "PT_PHDR"
  93     "VERSION")
  94   "Keywords used of GNU ld script.")
  95
  96 (defvar ld-script-builtins
  97   '("ABSOLUTE"
  98     "ADDR"
  99     "ALIGN"
 100     "BLOCK"
 101     "DATA_SEGMENT_ALIGN"
 102     "DATA_SEGMENT_END"
 103     "DATA_SEGMENT_RELRO_END"
 104     "DEFINED"
 105     "LENGTH"
 106     "LOADADDR"
 107     "MAX"
 108     "MIN"
 109     "NEXT"
 110     "ORIGIN"
 111     "SEGMENT_START"
 112     "SIZEOF"
 113     "SIZEOF_HEADERS"
 114     "sizeof_headers")
 115   "Builtin functions of GNU ld script.")
 116
 117 (defvar ld-script-font-lock-keywords
 118   (append
 119    `((,(regexp-opt ld-script-keywords 'words)
 120       1 font-lock-keyword-face)
 121      (,(regexp-opt ld-script-builtins 'words)
 122       1 font-lock-builtin-face)
 123      ("/DISCARD/" . font-lock-warning-face)
 124      ("\\W\\(\\.\\)\\W" 1 ld-script-location-counter-face)
 125      )
 126    cpp-font-lock-keywords)
 127   "Default font-lock-keywords for `ld-script-mode'.")
 128
 129 ;; Linux-2.6.9 uses some different suffix for linker scripts:
 130 ;; "ld", "lds", "lds.S", "lds.in", "ld.script", and "ld.script.balo".
 131 ;; eCos uses "ld" and "ldi".
 132 ;; Netbsd uses "ldscript.*".
 133 ;;;###autoload
 134 (add-to-list 'auto-mode-alist '("\\.ld[si]?\\>" . ld-script-mode))
 135 (add-to-list 'auto-mode-alist '("ld\\.?script\\>" . ld-script-mode))
 136
 137 ;;;###autoload
 138 (add-to-list 'auto-mode-alist '("\\.x[bdsru]?[cn]?\\'" . ld-script-mode))
 139
 140 ;;;###autoload
 141 (define-derived-mode ld-script-mode nil "LD-Script"
 142    "A major mode to edit GNU ld script files"
 143   (set (make-local-variable 'comment-start) "/* ")
 144   (set (make-local-variable 'comment-end)   " */")
 145   (set (make-local-variable 'font-lock-defaults)
 146        '(ld-script-font-lock-keywords nil)))
 147
 148 (provide 'ld-script)
 149
 150 ;; arch-tag: 83280b6b-e6fc-4d00-a630-922d7aec5593
 151 ;;; ld-script.el ends here