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From: Paul Eggert <eggert@cs.ucla.edu>
To: Pieter van Oostrum <pieter-l@vanoostrum.org>
Cc: 39962@debbugs.gnu.org, Pieter van Oostrum <pieter@vanoostrum.org>
Subject: bug#39962: 27.0.90; Crash in Emacs 27.0.90
Date: Sun, 8 Mar 2020 03:05:42 -0700	[thread overview]
Message-ID: <ce8486f9-2be5-fb10-8107-8c408fb354d7@cs.ucla.edu> (raw)
In-Reply-To: <lxh7yz6vhf.fsf@cochabamba.vanoostrum.org>

On 3/8/20 1:34 AM, Pieter van Oostrum wrote:
> (gdb) p (char *)lispsym
> $34 = 0x198 <error: Cannot access memory at address 0x198>
> (gdb) p (char *)&lispsym[0]
> 'lispsym' has unknown type; cast it to its declared type

lispsym's type is not known?! Either your compiler or your debugger has got a 
serious bug.

What does this command do?

(gdb) p (char *) &lispsym

Also, what does 'objdump -g emacs.o' say about lispsym? Mine says this:

emacs.o:     file format elf64-x86-64

Contents of the .debug_info section:

   Compilation Unit @ offset 0x0:
    Length:        0x1a196 (32-bit)
    Version:       4
    Abbrev Offset: 0x0
    Pointer Size:  8
  ...
  <1><8c7>: Abbrev Number: 70 (DW_TAG_structure_type)
     <8c8>   DW_AT_name        : (indirect string, offset: 0xcb81d): Lisp_Symbol
     <8cc>   DW_AT_byte_size   : 48
     <8cd>   DW_AT_alignment   : 8
     <8ce>   DW_AT_decl_file   : 4
     <8cf>   DW_AT_decl_line   : 805
     <8d1>   DW_AT_sibling     : <0x8e2>
  ...
  <1><8e2>: Abbrev Number: 8 (DW_TAG_pointer_type)
     <8e3>   DW_AT_byte_size   : 8
     <8e4>   DW_AT_type        : <0x8c7>
  ...
  <1><2969>: Abbrev Number: 122 (DW_TAG_array_type)
     <296a>   DW_AT_type        : <0x8c7>
     <296e>   DW_AT_alignment   : 8
     <296f>   DW_AT_sibling     : <0x297b>
  <2><2973>: Abbrev Number: 96 (DW_TAG_subrange_type)
     <2974>   DW_AT_type        : <0x2d>
     <2978>   DW_AT_upper_bound : 1279
  <2><297a>: Abbrev Number: 0
  <1><297b>: Abbrev Number: 9 (DW_TAG_variable)
     <297c>   DW_AT_name        : (indirect string, offset: 0x3c788): lispsym
     <2980>   DW_AT_decl_file   : 29
     <2981>   DW_AT_decl_line   : 1170
     <2983>   DW_AT_type        : <0x2969>
     <2987>   DW_AT_external    : 1
     <2987>   DW_AT_declaration : 1
  ...





  reply	other threads:[~2020-03-08 10:05 UTC|newest]

Thread overview: 119+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-06 23:55 bug#39962: 27.0.90; Crash in Emacs 27.0.90 Pieter van Oostrum
2020-03-07  7:48 ` Eli Zaretskii
2020-03-07  8:40   ` Pieter van Oostrum
2020-03-07  8:41   ` Pieter van Oostrum
2020-03-07 10:51     ` Eli Zaretskii
2020-03-07 11:06   ` Pieter van Oostrum
2020-03-07 13:10     ` Eli Zaretskii
2020-03-07 15:06       ` Pieter van Oostrum
2020-03-07 15:17         ` Eli Zaretskii
2020-03-07 15:49           ` Pieter van Oostrum
2020-03-07 16:07             ` Eli Zaretskii
2020-03-07 17:21               ` Pieter van Oostrum
2020-03-07 18:01                 ` Eli Zaretskii
2020-03-07 19:14                   ` Pieter van Oostrum
2020-03-07 19:21                     ` Eli Zaretskii
2020-03-07 22:07                       ` Pieter van Oostrum
2020-03-09  4:00     ` Pip Cet
2020-03-08  7:42 ` Paul Eggert
2020-03-08  9:34   ` Pieter van Oostrum
2020-03-08 10:05     ` Paul Eggert [this message]
2020-03-08 21:37       ` Pieter van Oostrum
2020-03-08 21:58         ` Pieter van Oostrum
2020-03-08 22:34         ` Paul Eggert
2020-03-08 23:58           ` Pieter van Oostrum
2020-03-09  0:01             ` Paul Eggert
2020-03-09 13:26               ` Pieter van Oostrum
2020-03-09 17:10                 ` Eli Zaretskii
2020-03-09 19:48                   ` Pieter van Oostrum
2020-03-10 13:37                     ` Pieter van Oostrum
2020-03-09 19:51                   ` Paul Eggert
2020-03-09 21:32                     ` Pieter van Oostrum
2020-03-10 10:52                       ` Pieter van Oostrum
2020-03-10 14:19                         ` Pip Cet
2020-03-10 16:36                           ` Pieter van Oostrum
2020-03-11 14:32                             ` Pip Cet
2020-03-11 15:16                               ` Pieter van Oostrum
2020-03-11 15:43                                 ` Pip Cet
2020-03-11 15:51                                   ` Paul Eggert
2020-03-11 16:21                                     ` Eli Zaretskii
2020-03-11 17:52                                   ` Eli Zaretskii
2020-03-11 18:53                                     ` Pip Cet
2020-03-11 19:34                                       ` Eli Zaretskii
2020-03-12 10:32                                         ` Pip Cet
2020-03-12 15:23                                           ` Eli Zaretskii
2020-03-12 20:36                                             ` Pip Cet
2020-03-13  9:39                                               ` Eli Zaretskii
2020-03-13 13:56                                                 ` Pip Cet
2020-03-13 16:30                                                   ` Eli Zaretskii
2020-03-14  9:02                                                     ` Pip Cet
2020-03-14 15:39                                                       ` Pip Cet
2020-03-14 16:00                                                         ` Paul Eggert
2020-03-14 16:15                                                           ` Pip Cet
2020-03-14 16:57                                                             ` Eli Zaretskii
2020-03-14 18:34                                                               ` Pip Cet
2020-03-14 19:09                                                                 ` Paul Eggert
2020-03-14 20:10                                                                   ` Eli Zaretskii
2020-03-15 12:12                                                                     ` Pip Cet
2020-03-15 14:53                                                                       ` Eli Zaretskii
2020-03-15 12:09                                                                   ` Pip Cet
2020-03-15 14:50                                                                     ` Eli Zaretskii
2020-03-16 16:31                                                     ` Stefan Monnier
2020-03-11 20:03                                   ` Pieter van Oostrum
2020-03-12 13:55                                     ` Pip Cet
2020-03-12 18:13                                       ` Pieter van Oostrum
2020-03-12 20:00                                         ` Pip Cet
2020-03-13  8:09                                           ` Eli Zaretskii
2020-03-13  8:39                                             ` Pip Cet
2020-03-13  9:19                                               ` Eli Zaretskii
2020-03-13 17:43                                                 ` Pieter van Oostrum
2020-03-14  3:38                                                 ` Richard Stallman
2020-03-14  8:37                                                   ` Eli Zaretskii
2020-03-14  9:16                                                     ` Pip Cet
2020-03-14 15:34                                                       ` Pip Cet
2020-03-13 17:42                                             ` Pieter van Oostrum
2020-03-13 19:34                                               ` Eli Zaretskii
2020-03-13 21:35                                                 ` Pieter van Oostrum
2020-03-14  8:08                                                   ` Eli Zaretskii
2020-03-14 21:32                                                     ` Pieter van Oostrum
2020-03-15 19:49                                                       ` Pieter van Oostrum
2020-03-15 19:57                                                         ` Eli Zaretskii
2020-03-15 23:26                                                           ` Pieter van Oostrum
2020-03-16 10:44                                                             ` Pieter van Oostrum
2020-03-16 15:07                                                               ` Eli Zaretskii
2020-03-16 15:33                                                               ` Pip Cet
2020-03-16 17:19                                                                 ` Pip Cet
2020-03-17  3:29                                                                   ` Pieter van Oostrum
2020-03-17  4:54                                                                     ` Pip Cet
2020-03-17  5:20                                                                       ` Pip Cet
2020-03-17  8:45                                                                         ` Pieter van Oostrum
2020-03-17 13:54                                                                           ` Pip Cet
2020-03-17 15:27                                                                             ` Pieter van Oostrum
2020-03-17 20:16                                                                               ` Pip Cet
2020-03-17 23:32                                                                                 ` Pieter van Oostrum
2020-03-18 15:05                                                                                   ` Eli Zaretskii
2020-03-19 13:23                                                                                     ` Pieter van Oostrum
2020-03-19 13:57                                                                                       ` Pip Cet
2020-03-21 21:22                                                                                         ` Pieter van Oostrum
2020-03-22 14:21                                                                                           ` Eli Zaretskii
2020-03-22 15:48                                                                                           ` Pip Cet
2020-03-23 19:34                                                                                             ` Pip Cet
2020-03-17  8:40                                                                       ` Pieter van Oostrum
2020-03-17 15:33                                                                     ` Eli Zaretskii
2020-03-17 20:59                                                                       ` Paul Eggert
2020-03-18  6:17                                                                         ` Pip Cet
2020-03-18  9:22                                                                           ` Robert Pluim
2020-03-18 11:38                                                                             ` Pieter van Oostrum
2020-03-18 11:57                                                                               ` Paul Eggert
2020-03-18 14:08                                                                               ` Pip Cet
2020-03-19 19:17                                                                                 ` Pieter van Oostrum
2020-03-19 19:31                                                                                   ` Pip Cet
2020-03-19 21:30                                                                                     ` Pieter van Oostrum
2020-03-18 14:08                                                                           ` Eli Zaretskii
2020-03-16 18:36                                                                 ` Pieter van Oostrum
2020-03-13  7:58                                         ` Eli Zaretskii
2020-03-10 15:10                         ` Eli Zaretskii
2020-03-10 18:23                           ` Pieter van Oostrum
2020-03-11  8:22                         ` Paul Eggert
2022-04-30 12:38 ` Lars Ingebrigtsen
2022-05-29 13:19   ` Lars Ingebrigtsen

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