mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:51:15 +08:00
fd67aa1129
Adds two new external authors to etc/update-copyright.py to cover bfd/ax_tls.m4, and adds gprofng to dirs handled automatically, then updates copyright messages as follows: 1) Update cgen/utils.scm emitted copyrights. 2) Run "etc/update-copyright.py --this-year" with an extra external author I haven't committed, 'Kalray SA.', to cover gas testsuite files (which should have their copyright message removed). 3) Build with --enable-maintainer-mode --enable-cgen-maint=yes. 4) Check out */po/*.pot which we don't update frequently.
243 lines
8.4 KiB
EmacsLisp
243 lines
8.4 KiB
EmacsLisp
;;; dwarf-mode.el --- Browser for DWARF information. -*-lexical-binding:t-*-
|
|
|
|
;; Version: 1.8
|
|
|
|
;; Copyright (C) 2012-2024 Free Software Foundation, Inc.
|
|
|
|
;; This file is not part of GNU Emacs, but is distributed under the
|
|
;; same terms:
|
|
|
|
;; 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 <http://www.gnu.org/licenses/>.
|
|
|
|
;;; Code:
|
|
|
|
(defvar dwarf-objdump-program "objdump")
|
|
|
|
(defconst dwarf-font-lock-keywords
|
|
'(
|
|
;; Name and linkage name.
|
|
("DW_AT_[a-zA-Z_]*name\\s *:\\(?:\\s *(.*):\\)?\\s *\\(.*\\)\\s *$"
|
|
(1 font-lock-function-name-face))
|
|
|
|
("Compilation Unit @ offset 0x[0-9a-f]+"
|
|
(0 font-lock-string-face))
|
|
))
|
|
|
|
(defvar dwarf-file nil
|
|
"Buffer-local variable holding the file name passed to objdump.")
|
|
|
|
(defvar dwarf--process nil
|
|
"Running objdump process, or nil.")
|
|
|
|
(defvar dwarf--deletion-region nil
|
|
"Region to delete before inserting text in `dwarf--filter'.")
|
|
|
|
(defun dwarf--check-running ()
|
|
"Throw an exception if an objdump process is already running."
|
|
(when dwarf--process
|
|
(error "An objdump process is still running in this buffer")))
|
|
|
|
(defun dwarf--filter (proc string)
|
|
"Filter function for objdump processes."
|
|
(when (buffer-live-p (process-buffer proc))
|
|
(with-current-buffer (process-buffer proc)
|
|
(save-excursion
|
|
(let ((inhibit-read-only t))
|
|
(when dwarf--deletion-region
|
|
(apply #'delete-region dwarf--deletion-region)
|
|
(setq dwarf--deletion-region nil))
|
|
(goto-char (process-mark proc))
|
|
(insert string)
|
|
(set-marker (process-mark proc) (point))
|
|
(set-buffer-modified-p nil))))))
|
|
|
|
(defun dwarf--sentinel (proc _status)
|
|
(when (buffer-live-p (process-buffer proc))
|
|
(with-current-buffer (process-buffer proc)
|
|
(setq mode-line-process nil)
|
|
(setq dwarf--process nil))))
|
|
|
|
(defun dwarf--invoke (start end &rest command)
|
|
"Invoke a command and arrange to insert output into the current buffer."
|
|
(setq mode-line-process "[Running]")
|
|
(setq dwarf--deletion-region (list start end))
|
|
(setq dwarf--process (make-process :name "objdump"
|
|
:buffer (current-buffer)
|
|
:command command
|
|
:connection-type 'pipe
|
|
:noquery t
|
|
:filter #'dwarf--filter
|
|
:sentinel #'dwarf--sentinel))
|
|
(set-marker (process-mark dwarf--process) (point)))
|
|
|
|
;; Expand a "..." to show all the child DIES. NEW-DEPTH controls how
|
|
;; deep to display the new dies; `nil' means display all of them.
|
|
(defun dwarf-do-insert-substructure (new-depth die)
|
|
(dwarf--check-running)
|
|
(let ((inhibit-read-only t))
|
|
(beginning-of-line)
|
|
(apply #'dwarf--invoke
|
|
(point) (save-excursion
|
|
(end-of-line)
|
|
(forward-char)
|
|
(point))
|
|
dwarf-objdump-program "-Wi" (concat "--dwarf-start=0x" die)
|
|
(expand-file-name dwarf-file)
|
|
(if new-depth (list (concat "--dwarf-depth="
|
|
(int-to-string new-depth)))))
|
|
(set-buffer-modified-p nil)))
|
|
|
|
(defun dwarf-insert-substructure-button (die)
|
|
(beginning-of-line)
|
|
(unless (looking-at "^ <\\([0-9]+\\)>")
|
|
(error "Unrecognized line."))
|
|
(let ((new-depth (1+ (string-to-number (match-string 1)))))
|
|
(dwarf-do-insert-substructure new-depth die)))
|
|
|
|
(defun dwarf-insert-substructure (arg)
|
|
"Expand a `...' to show children of the current DIE.
|
|
By default, expands just one level of children.
|
|
A prefix argument means expand all children."
|
|
(interactive "P")
|
|
(beginning-of-line)
|
|
(unless (looking-at "^ <\\([0-9]+\\)><\\([0-9a-f]+\\)>: \\.\\.\\.")
|
|
(error "Unrecognized line."))
|
|
(let ((die (match-string 2)))
|
|
(if arg
|
|
(dwarf-do-insert-substructure nil die)
|
|
(dwarf-insert-substructure-button die))))
|
|
|
|
;; Called when a button is pressed.
|
|
;; Either follows a DIE reference, or expands a "...".
|
|
(defun dwarf-die-button-action (button)
|
|
(let* ((die (button-get button 'die))
|
|
;; Note that the first number can only be decimal. It is
|
|
;; included in this search because otherwise following a ref
|
|
;; might lead to a zero-length boolean attribute in the
|
|
;; previous DIE.
|
|
(die-rx (concat "^\\s *<[0-9]+><" die ">:"))
|
|
(old (point))
|
|
(is-ref (button-get button 'die-ref)))
|
|
(if is-ref
|
|
(progn
|
|
(goto-char (point-min))
|
|
(if (re-search-forward die-rx nil 'move)
|
|
(push-mark old)
|
|
(goto-char old)
|
|
(error "Could not find DIE <0x%s>" die)))
|
|
(dwarf-insert-substructure-button die))))
|
|
|
|
;; Button definition.
|
|
(define-button-type 'dwarf-die-button
|
|
'follow-link t
|
|
'action #'dwarf-die-button-action)
|
|
|
|
;; Helper regexp to match a DIE reference.
|
|
(defconst dwarf-die-reference "\\(<0x\\([0-9a-f]+\\)>\\)")
|
|
|
|
;; Helper regexp to match a `...' indicating that there are hidden
|
|
;; children.
|
|
(defconst dwarf-die-more "^ <[0-9]+><\\([0-9a-z]+\\)>: \\([.][.][.]\\)")
|
|
|
|
;; jit-lock callback function to fontify a region. This applies the
|
|
;; buttons, since AFAICT there is no good way to apply buttons via
|
|
;; font-lock.
|
|
(defun dwarf-fontify-region (start end)
|
|
(save-excursion
|
|
(let ((beg-line (progn (goto-char start) (line-beginning-position)))
|
|
(end-line (progn (goto-char end) (line-end-position))))
|
|
(goto-char beg-line)
|
|
(while (re-search-forward dwarf-die-reference end-line 'move)
|
|
(let ((b-start (match-beginning 1))
|
|
(b-end (match-end 1))
|
|
(hex (match-string-no-properties 2)))
|
|
(make-text-button b-start b-end :type 'dwarf-die-button
|
|
'die hex 'die-ref t)))
|
|
;; This is a bogus approach. Why can't we make buttons from the
|
|
;; font-lock defaults?
|
|
(goto-char beg-line)
|
|
(while (re-search-forward dwarf-die-more end-line 'move)
|
|
(let ((hex (match-string-no-properties 1))
|
|
(b-start (match-beginning 2))
|
|
(b-end (match-end 2)))
|
|
(make-text-button b-start b-end :type 'dwarf-die-button
|
|
'die hex 'die-ref nil))))))
|
|
|
|
;; Run objdump and insert the contents into the buffer. The arguments
|
|
;; are the way they are because this is also called as a
|
|
;; revert-buffer-function.
|
|
(defun dwarf-do-refresh (&rest _ignore)
|
|
(dwarf--check-running)
|
|
(let ((inhibit-read-only t))
|
|
(dwarf--invoke (point-min) (point-max)
|
|
dwarf-objdump-program "-Wi" "--dwarf-depth=1"
|
|
(expand-file-name dwarf-file))
|
|
(set-buffer-modified-p nil)))
|
|
|
|
(defun dwarf-refresh-all ()
|
|
"Refresh the current buffer without eliding substructure.
|
|
Note that this can result in very voluminous output."
|
|
(interactive)
|
|
(dwarf--check-running)
|
|
(let ((inhibit-read-only t))
|
|
(dwarf--invoke (point-min) (point-max)
|
|
dwarf-objdump-program "-Wi"
|
|
(expand-file-name dwarf-file))
|
|
(set-buffer-modified-p nil)))
|
|
|
|
(defvar dwarf-mode-syntax-table
|
|
(let ((table (make-syntax-table)))
|
|
;; This at least makes it so mark-sexp on some hex digits inside
|
|
;; <...> does not also copy the ">".
|
|
(modify-syntax-entry ?< "(>" table)
|
|
(modify-syntax-entry ?> ")<" table)
|
|
table)
|
|
"Syntax table for dwarf-mode buffers.")
|
|
|
|
(defvar dwarf-mode-map
|
|
(let ((map (make-sparse-keymap)))
|
|
(set-keymap-parent map special-mode-map)
|
|
(define-key map [(control ?m)] #'dwarf-insert-substructure)
|
|
(define-key map "A" #'dwarf-refresh-all)
|
|
map)
|
|
"Keymap for dwarf-mode buffers.")
|
|
|
|
(define-derived-mode dwarf-mode special-mode "DWARF"
|
|
"Major mode for browsing DWARF output.
|
|
|
|
\\{dwarf-mode-map}"
|
|
|
|
(set (make-local-variable 'font-lock-defaults) '(dwarf-font-lock-keywords))
|
|
(set (make-local-variable 'revert-buffer-function) #'dwarf-do-refresh)
|
|
(jit-lock-register #'dwarf-fontify-region))
|
|
|
|
;;;###autoload
|
|
(defun dwarf-browse (file)
|
|
"Invoke `objdump' and put output into a `dwarf-mode' buffer.
|
|
This is the main interface to `dwarf-mode'."
|
|
(interactive "fFile name: ")
|
|
(let* ((base-name (file-name-nondirectory file))
|
|
(buffer (generate-new-buffer (concat "*DWARF for " base-name "*"))))
|
|
(pop-to-buffer buffer)
|
|
(dwarf-mode)
|
|
(setq default-directory (file-name-directory file))
|
|
(set (make-local-variable 'dwarf-file) file)
|
|
(set (make-local-variable 'dwarf--process) nil)
|
|
(set (make-local-variable 'dwarf--deletion-region) nil)
|
|
(dwarf-do-refresh)))
|
|
|
|
(provide 'dwarf-mode)
|
|
|
|
;;; dwarf-mode.el ends here
|