;;; ld-script.el --- GNU linker script editing mode for Emacs ;; Copyright (C) 2001-2019 Free Software Foundation, Inc. ;; Author: Masatake YAMATO ;; Keywords: languages, faces ;; This file is part of GNU Emacs. ;; GNU Emacs is free software: you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation, either version 3 of the License, or ;; (at your option) any later version. ;; GNU Emacs is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with GNU Emacs. If not, see . ;;; Commentary: ;; Major mode for editing GNU linker (ld) scripts. ;;; Code: ;; Custom (defgroup ld-script nil "GNU linker script code editing commands for Emacs." :prefix "ld-script-" :group 'languages) (defvar ld-script-location-counter-face 'ld-script-location-counter) (defface ld-script-location-counter '((t :weight bold :inherit font-lock-builtin-face)) "Face for location counter in GNU ld script." :group 'ld-script) ;; Syntax rules (defvar ld-script-mode-syntax-table (let ((st (make-syntax-table))) (modify-syntax-entry ?\ "-" st) (modify-syntax-entry ?{ "(}" st) (modify-syntax-entry ?} "){" st) (modify-syntax-entry ?\( "()" st) (modify-syntax-entry ?\) ")(" st) (modify-syntax-entry ?\[ "(]" st) (modify-syntax-entry ?\] ")[" st) (modify-syntax-entry ?_ "_" st) (modify-syntax-entry ?. "_" st) (modify-syntax-entry ?\\ "\\" st) (modify-syntax-entry ?: "." st) (modify-syntax-entry ?, "." st) (modify-syntax-entry ?? "." st) (modify-syntax-entry ?= "." st) (modify-syntax-entry ?* ". 23" st) (modify-syntax-entry ?/ ". 14" st) (modify-syntax-entry ?+ "." st) (modify-syntax-entry ?- "." st) (modify-syntax-entry ?! "." st) (modify-syntax-entry ?~ "." st) (modify-syntax-entry ?% "." st) (modify-syntax-entry ?< "." st) (modify-syntax-entry ?> "." st) (modify-syntax-entry ?& "." st) (modify-syntax-entry ?| "." st) (modify-syntax-entry ?\" "\"" st) st) "Syntax table used while in `ld-script-mode'.") ;; Font lock keywords ;; (The section number comes from ld's info.) (defvar ld-script-keywords '( ;; 3.4.1 Setting the Entry Point "ENTRY" ;; 3.4.2 Commands Dealing with Files "INCLUDE" "INPUT" "GROUP" "AS_NEEDED" "OUTPUT" "SEARCH_DIR" "STARTUP" ;; 3.4.3 Commands Dealing with Object File Formats "OUTPUT_FORMAT" "TARGET" ;; 3.4.4 Assign alias names to memory regions "REGION_ALIAS" ;; 3.4.5 Other Linker Script Commands "ASSERT" "EXTERN" "FORCE_COMMON_ALLOCATION" "INHIBIT_COMMON_ALLOCATION" "INSERT" "AFTER" "BEFORE" "NOCROSSREFS" "NOCROSSREFS_TO" "OUTPUT_ARCH" "LD_FEATURE" ;; 3.5.2 HIDDEN "HIDDEN" ;; 3.5.3 PROVIDE "PROVIDE" ;; 3.5.4 PROVIDE_HIDDEN "PROVIDE_HIDDEN" ;; 3.6 SECTIONS Command "SECTIONS" ;; 3.6.4.2 Input Section Wildcard Patterns "SORT" "SORT_BY_NAME" "SORT_BY_ALIGNMENT" "SORT_BY_INIT_PRIORITY" ;; 3.6.4.3 Input Section for Common Symbols "COMMON" ;; 3.6.4.4 Input Section and Garbage Collection "KEEP" ;; 3.6.5 Output Section Data "BYTE" "SHORT" "LONG" "QUAD" "SQUAD" "FILL" ;; 3.6.6 Output Section Keywords "CREATE_OBJECT_SYMBOLS" "CONSTRUCTORS" "__CTOR_LIST__" "__CTOR_END__" "__DTOR_LIST__" "__DTOR_END__" ;; 3.6.7 Output Section Discarding ;; See `ld-script-font-lock-keywords' ;; 3.6.8.1 Output Section Type "NOLOAD" "DSECT" "COPY" "INFO" "OVERLAY" ;; 3.6.8.2 Output Section LMA "AT" ;; 3.6.8.4 Forced Input Alignment "SUBALIGN" ;; 3.6.8.5 Output Section Constraint "ONLY_IF_RO" "ONLY_IF_RW" ;; 3.6.8.7 Output Section Phdr ":PHDR" ;; 3.7 MEMORY Command "MEMORY" ;; 3.8 PHDRS Command "PHDRS" "FILEHDR" "FLAGS" "PT_NULL" "PT_LOAD" "PT_DYNAMIC" "PT_INTERP" "PT_NOTE" "PT_SHLIB" "PT_PHDR" ;; 3.9 VERSION Command "VERSION") "Keywords used of GNU ld script.") ;; 3.10.2 Symbolic Constants ;; 3.10.9 Builtin Functions (defvar ld-script-builtins '("CONSTANT" "MAXPAGESIZE" "COMMONPAGESIZE" "ABSOLUTE" "ADDR" "ALIGN" "ALIGNOF" "BLOCK" "DATA_SEGMENT_ALIGN" "DATA_SEGMENT_END" "DATA_SEGMENT_RELRO_END" "DEFINED" "LENGTH" "len" "l" "LOADADDR" "LOG2CEIL" "MAX" "MIN" "NEXT" "ORIGIN" "org" "o" "SEGMENT_START" "SIZEOF" "SIZEOF_HEADERS" "sizeof_headers") "Builtin functions of GNU ld script.") (defvar ld-script-font-lock-keywords (append `((,(concat "\\_<" (regexp-opt ld-script-keywords) "\\_>") 0 font-lock-keyword-face) (,(concat "\\_<" (regexp-opt ld-script-builtins) "\\_>") 0 font-lock-builtin-face) ;; 3.6.7 Output Section Discarding ;; 3.6.4.1 Input Section Basics ;; 3.6.8.7 Output Section Phdr ("/DISCARD/\\|EXCLUDE_FILE\\|:NONE" . font-lock-warning-face) ("\\W\\(\\.\\)\\W" 1 ld-script-location-counter-face) ) cpp-font-lock-keywords) "Default font-lock-keywords for `ld-script-mode'.") ;;;###autoload (define-derived-mode ld-script-mode prog-mode "LD-Script" "A major mode to edit GNU ld script files" (set (make-local-variable 'comment-start) "/* ") (set (make-local-variable 'comment-end) " */") (set (make-local-variable 'font-lock-defaults) '(ld-script-font-lock-keywords nil))) (provide 'ld-script) ;;; ld-script.el ends here