199 lines
8.9 KiB
EmacsLisp
199 lines
8.9 KiB
EmacsLisp
;;; gud-lldb.el --- Grand Unified Debugger mode for running LLDB
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;; Copyright (C) 1992-1996, 1998, 2000-2014 Free Software Foundation,
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;; Inc.
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;; Author: Eric S. Raymond <esr@snark.thyrsus.com>
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;; Maintainer: emacs-devel@gnu.org
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;; Keywords: unix, tools, osx
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This file contains an extract of the gud.el version from
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;; `http://opensource.apple.com/source/lldb/lldb-69/utils/emacs/gud.el'
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;;; Code:
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(require 'gud)
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;; History of argument lists passed to lldb.
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(defvar gud-lldb-history nil)
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;; Keeps track of breakpoint created. In the following case, the id is "1".
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;; It is used to implement temporary breakpoint.
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;; (lldb) b main.c:39
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;; breakpoint set --file 'main.c' --line 39
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;; Breakpoint created: 1: file ='main.c', line = 39, locations = 1
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(defvar gud-breakpoint-id nil)
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(defun lldb-extract-breakpoint-id (string)
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;; Search for "Breakpoint created: \\([^:\n]*\\):" pattern.
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;(message "gud-marker-acc string is: |%s|" string)
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(if (string-match "Breakpoint created: \\([^:\n]*\\):" string)
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(progn
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(setq gud-breakpoint-id (match-string 1 string))
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(message "breakpoint id: %s" gud-breakpoint-id)))
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)
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(defun gud-lldb-marker-filter (string)
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(setq gud-marker-acc
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(if gud-marker-acc (concat gud-marker-acc string) string))
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(lldb-extract-breakpoint-id gud-marker-acc)
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(let (start)
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;; Process all complete markers in this chunk
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(while (or
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;; (lldb) r
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;; Process 15408 launched: '/Volumes/data/lldb/svn/trunk/test/conditional_break/a.out' (x86_64)
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;; (lldb) Process 15408 stopped
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;; * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = breakpoint 1.1, queue = com.apple.main-thread
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(string-match " at \\([^:\n]*\\):\\([0-9]*\\), stop reason = .*\n"
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gud-marker-acc start)
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;; (lldb) frame select -r 1
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;; frame #1: 0x0000000100000e09 a.out`main + 25 at main.c:44
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(string-match "^[ ]*frame.* at \\([^:\n]*\\):\\([0-9]*\\)\n"
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gud-marker-acc start))
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;(message "gud-marker-acc matches our pattern....")
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(setq gud-last-frame
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(cons (match-string 1 gud-marker-acc)
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(string-to-number (match-string 2 gud-marker-acc)))
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start (match-end 0)))
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;; Search for the last incomplete line in this chunk
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(while (string-match "\n" gud-marker-acc start)
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(setq start (match-end 0)))
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;; If we have an incomplete line, store it in gud-marker-acc.
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(setq gud-marker-acc (substring gud-marker-acc (or start 0))))
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string)
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;; Keeps track of whether the Python lldb_oneshot_break function definition has
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;; been exec'ed.
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(defvar lldb-oneshot-break-defined nil)
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;;;###autoload
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(defun lldb (command-line)
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"Run lldb on program FILE in buffer *gud-FILE*.
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The directory containing FILE becomes the initial working directory
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and source-file directory for your debugger."
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(interactive (list (gud-query-cmdline 'lldb)))
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(gud-common-init command-line nil 'gud-lldb-marker-filter)
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(set (make-local-variable 'gud-minor-mode) 'lldb)
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(setq lldb-oneshot-break-defined nil)
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;; Make lldb dump fullpath instead of basename for a file.
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;; See also gud-lldb-marker-filter where gud-last-frame is grokked from lldb output.
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(progn
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(gud-call "settings set frame-format frame #${frame.index}: ${frame.pc}{ ${module.file.basename}{`${function.name}${function.pc-offset}}}{ at ${line.file.fullpath}:${line.number}}\\n")
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(sit-for 1)
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(gud-call "settings set thread-format thread #${thread.index}: tid = ${thread.id}{, ${frame.pc}}{ ${module.file.basename}{`${function.name}${function.pc-offset}}}{ at ${line.file.fullpath}:${line.number}}{, stop reason = ${thread.stop-reason}}\\n")
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(sit-for 1))
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(gud-def gud-listb "breakpoint list"
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"l" "List all breakpoints.")
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(gud-def gud-bt "thread backtrace"
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"b" "Show stack for the current thread.")
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(gud-def gud-bt-all "thread backtrace all"
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"B" "Show stacks for all the threads.")
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(gud-def gud-break "breakpoint set -f %f -l %l"
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"\C-b" "Set breakpoint at current line.")
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(gud-def gud-tbreak
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(progn (gud-call "breakpoint set -f %f -l %l")
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(sit-for 1)
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(if (not lldb-oneshot-break-defined)
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(progn
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;; The "\\n"'s are required to escape the newline chars
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;; passed to the lldb process.
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(gud-call (concat "script exec \"def lldb_oneshot_break(frame, bp_loc):\\n"
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" target=frame.GetThread().GetProcess().GetTarget()\\n"
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" bp=bp_loc.GetBreakpoint()\\n"
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" print 'Deleting oneshot breakpoint:', bp\\n"
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" target.BreakpointDelete(bp.GetID())\""))
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(sit-for 1)
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;; Set the flag since Python knows about the function def now.
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(setq lldb-oneshot-break-defined t)))
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(gud-call "breakpoint command add -p %b -o 'lldb_oneshot_break(frame, bp_loc)'"))
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"\C-t" "Set temporary breakpoint at current line.")
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(gud-def gud-remove "breakpoint clear -f %f -l %l"
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"\C-d" "Remove breakpoint at current line")
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(gud-def gud-step "thread step-in"
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"\C-s" "Step one source line with display.")
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(gud-def gud-stepi "thread step-inst"
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"\C-i" "Step one instruction with display.")
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(gud-def gud-next "thread step-over"
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"\C-n" "Step one line (skip functions).")
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(gud-def gud-nexti "thread step-inst-over"
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nil "Step one instruction (skip functions).")
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(gud-def gud-cont "process continue"
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"\C-r" "Continue with display.")
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(gud-def gud-finish "thread step-out"
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"\C-f" "Finish executing current function.")
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(gud-def gud-up
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(progn (gud-call "frame select -r 1")
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(sit-for 1))
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"<" "Up 1 stack frame.")
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(gud-def gud-down
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(progn (gud-call "frame select -r -1")
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(sit-for 1))
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">" "Down 1 stack frame.")
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(gud-def gud-print "expression -- %e"
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"\C-p" "Evaluate C expression at point.")
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(gud-def gud-pstar "expression -- *%e"
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nil "Evaluate C dereferenced pointer expression at point.")
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(gud-def gud-run "run"
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"r" "Run the program.")
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(gud-def gud-stop-subjob "process kill"
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"s" "Stop the program.")
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(setq comint-prompt-regexp "\\(^\\|\n\\)\\*")
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(setq paragraph-start comint-prompt-regexp)
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(run-hooks 'lldb-mode-hook)
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)
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;; ;; tooltip
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;; (defun gud-lldb-tooltip-print-command (expr)
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;; "Return a suitable command to print the expression EXPR."
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;; (pcase gud-minor-mode
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;; ;; '-o' to print the objc object description if available
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;; (`lldb (concat "expression -o -- " expr))
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;; (`gdbmi (concat "-data-evaluate-expression \"" expr "\""))
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;; (`guiler expr)
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;; (`dbx (concat "print " expr))
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;; ((or `xdb `pdb) (concat "p " expr))
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;; (`sdb (concat expr "/"))))
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;; (advice-add 'gud-tooltip-print-command :override #'gud-lldb-tooltip-print-command)
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;; menu
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(setcdr (nth 2 (nth 7 (assoc 'nexti gud-menu-map))) '((lldb gdbmi gdb dbx)))
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(setcdr (nth 2 (nth 7 (assoc 'stepi gud-menu-map))) '((lldb gdbmi gdb dbx)))
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(setcdr (nth 2 (nth 7 (assoc 'finish gud-menu-map))) '((lldb gdbmi gdb guiler xdb jdb pdb)))
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(setcdr (nth 2 (nth 7 (assoc 'print* gud-menu-map))) '((lldb gdbmi gdb jdb)))
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(setcdr (nth 2 (nth 7 (assoc 'down gud-menu-map))) '((lldb gdbmi gdb guiler dbx xdb jdb pdb)))
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(setcdr (nth 2 (nth 7 (assoc 'up gud-menu-map))) '((lldb gdbmi gdb guiler dbx xdb jdb pdb)))
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(setcdr (nth 2 (nth 7 (assoc 'tbreak gud-menu-map))) '((lldb gdbmi gdb sdb xdb)))
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(setcdr (nth 2 (nth 7 (assoc 'run gud-menu-map))) '((lldb gdbmi gdb dbx jdb)))
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;; (setcdr (nth 2 (nth 7 (assoc 'tooltips gud-menu-map))) '((lldb gdbmi guiler dbx sdb xdb pdb)))
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(provide 'gud-lldb)
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;;; gud-lldb.el ends here
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