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bug#12036: 24.1.50; xvectype and xpr broken by change in PVEC_TYPE_MASK


From: Eli Zaretskii
Subject: bug#12036: 24.1.50; xvectype and xpr broken by change in PVEC_TYPE_MASK when macro information not available
Date: Mon, 23 Jul 2012 21:13:07 +0300

This bug report will be sent to the Bug-GNU-Emacs mailing list
and the GNU bug tracker at debbugs.gnu.org.  Please check that
the From: line contains a valid email address.  After a delay of up
to one day, you should receive an acknowledgement at that address.

Please write in English if possible, as the Emacs maintainers
usually do not have translators for other languages.

Please describe exactly what actions triggered the bug, and
the precise symptoms of the bug.  If you can, give a recipe
starting from `emacs -Q':

 cd src
 gdb ./emacs
 (gdb) break decode_any_window
 (gdb) r -Q
 Breakpoint 3, decode_any_window (window=54912845) at window.c:149
 149       if (NILP (window))
 (gdb) n
 152       CHECK_WINDOW (window);
 (gdb) p window
 $1 = 54912845
 (gdb) xtype
 Lisp_Vectorlike
 No symbol "PVEC_TYPE_MASK" in current context.

AFAICS, this happens because PVEC_TYPE_MASK is now a macro, whereas it
was an enumerated type before.  Therefore, any GDB commands that use
it will not work unless the macro information is available to GDB,
which only happens with some GCC switches.

Please make these commands work without requiring -g3 again.

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
d:/gnu/bzr/emacs/trunk/etc/DEBUG.


In GNU Emacs 24.1.50.1 (i386-mingw-nt5.1.2600)
 of 2012-07-23 on HOME-C4E4A596F7
Bzr revision: 109194 address@hidden
Windowing system distributor `Microsoft Corp.', version 5.1.2600
Configured using:
 `configure --with-gcc (3.4) --no-opt --enable-checking --cflags
 -Id:/usr/include/libxml2 -DGLYPH_DEBUG=1'

Important settings:
  value of $EMACSDATA: D:/gnu/bzr/emacs/trunk/etc
  value of $EMACSDOC: D:/gnu/bzr/emacs/trunk/etc
  value of $EMACSLOADPATH: 
D:/gnu/bzr/emacs/trunk/lisp;D:/gnu/bzr/emacs/trunk/leim
  value of $EMACSPATH: D:/gnu/bzr/emacs/trunk/bin
  value of $LANG: ENU
  locale-coding-system: cp1255
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
M-x r e p o r t - e m <tab> <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils time-date tooltip ediff-hook vc-hooks
lisp-float-type mwheel dos-w32 disp-table ls-lisp w32-win w32-vars
tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment
lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minibuffer button faces cus-face files text-properties overlay sha1 md5
base64 format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process multi-tty emacs)





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