Jan Synacek
parent
357c7df734
commit
abc097541b
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@ -0,0 +1,70 @@
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--- emacs-24.5/lisp/progmodes/gdb-mi.el 2015-04-02 09:23:06.000000000 +0200
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+++ emacs-24.5-new/lisp/progmodes/gdb-mi.el 2016-02-02 12:40:28.635711182 +0100
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@@ -2305,10 +2305,67 @@ the end of the current result or async r
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; list ==>
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; "[]" | "[" value ( "," value )* "]" | "[" result ( "," result )* "]"
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+(defcustom gdb-mi-decode-strings nil
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+ "When non-nil, decode octal escapes in GDB output into non-ASCII text.
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+
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+If the value is a coding-system, use that coding-system to decode
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+the bytes reconstructed from octal escapes. Any other non-nil value
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+means to decode using the coding-system set for the GDB process.
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+
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+Warning: setting this non-nil might mangle strings reported by GDB
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+that have literal substrings which match the \\nnn octal escape
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+patterns, where nnn is an octal number between 200 and 377. So
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+we only recommend to set this variable non-nil if the program you
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+are debugging really reports non-ASCII text, or some of its source
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+file names include non-ASCII characters."
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+ :type '(choice
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+ (const :tag "Don't decode" nil)
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+ (const :tag "Decode using default coding-system" t)
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+ (coding-system :tag "Decode using this coding-system"))
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+ :group 'gdb
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+ :version "25.1")
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+
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+;; The idea of the following function was suggested
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+;; by Kenichi Handa <handa@gnu.org>.
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+;;
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+;; FIXME: This is fragile: it relies on the assumption that all the
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+;; non-ASCII strings output by GDB, including names of the source
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+;; files, values of string variables in the inferior, etc., are all
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+;; encoded in the same encoding. It also assumes that the \nnn
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+;; sequences are not split between chunks of output of the GDB process
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+;; due to buffering, and arrive together. Finally, if some string
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+;; included literal \nnn strings (as opposed to non-ASCII characters
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+;; converted by by GDB/MI to octal escapes), this decoding will mangle
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+;; those strings. When/if GDB acquires the ability to not
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+;; escape-protect non-ASCII characters in its MI output, this kludge
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+;; should be removed.
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+(defun gdb-mi-decode (string)
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+ "Decode octal escapes in MI output STRING into multibyte text."
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+ (let ((coding
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+ (if (coding-system-p gdb-mi-decode-strings)
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+ gdb-mi-decode-strings
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+ (with-current-buffer
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+ (gdb-get-buffer-create 'gdb-partial-output-buffer)
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+ buffer-file-coding-system))))
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+ (with-temp-buffer
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+ (set-buffer-multibyte nil)
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+ (prin1 string (current-buffer))
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+ (goto-char (point-min))
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+ ;; prin1 quotes the octal escapes as well, which interferes with
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+ ;; their interpretation by 'read' below. Remove the extra
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+ ;; backslashes to countermand that.
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+ (while (re-search-forward "\\\\\\(\\\\[2-3][0-7][0-7]\\)" nil t)
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+ (replace-match "\\1" nil nil))
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+ (goto-char (point-min))
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+ (decode-coding-string (read (current-buffer)) coding))))
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(defun gud-gdbmi-marker-filter (string)
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"Filter GDB/MI output."
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+ ;; If required, decode non-ASCII text encoded with octal escapes.
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+ (or (null gdb-mi-decode-strings)
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+ (setq string (gdb-mi-decode string)))
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+
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;; Record transactions if logging is enabled.
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(when gdb-enable-debug
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(push (cons 'recv string) gdb-debug-log)
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@ -29,6 +29,9 @@ Patch4: emacs-system-crypto-policies.patch
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Patch5: emacs-bbdb.patch
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# http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=06083cf41c473404d246de9b91a0116f38c5485f
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Patch6: emacs-mercurial.patch
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# http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=439f483be35a000e7a3bec6acf395ce4d54d6323
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# http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=9c86325b69d75e9b17ff468f5a2220597979635f
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Patch7: emacs-gdb-ascii.patch
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BuildRequires: atk-devel
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BuildRequires: cairo-devel
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@ -173,6 +176,7 @@ packages that add functionality to Emacs.
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%patch4 -p1 -b .system-crypto-policies
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%patch5 -p1 -b .bbdb
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%patch6 -p1
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%patch7 -p1
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autoconf
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# We prefer our emacs.desktop file
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@ -446,6 +450,7 @@ update-desktop-database &> /dev/null || :
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%changelog
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* Tue Feb 2 2016 Jan Synáček <jsynacek@redhat.com> - 1:24.5-9
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- emacs "deadlocked" after using mercurial with huge amounts of ignored files in the repository (#1232422)
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- GDB interface gets confused by non-ASCII (#1283412)
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* Tue Jan 5 2016 Jan Synáček <jsynacek@redhat.com> - 1:24.5-9
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- set default value for smime-CA-directory (#1131558)
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