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Suspicious code in unexelf.c


From: David Kaelbling
Subject: Suspicious code in unexelf.c
Date: Tue, 20 Nov 2001 16:06:08 -0500 (EST)

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In GNU Emacs 21.1.1 (mips-sgi-irix6.5)
 of 2001-11-19 on orchietta.hudson.sgi.com
configured using `configure  mips-sgi-irix6.5 --prefix=/usr/freeware 
--libdir=/usr/freeware/lib32 --without-gcc --with-pop --with-x 
--with-x-toolkit=no'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Looking at unexelf.c, I see the following around line 1001:

          || !strcmp ((old_section_names + NEW_SECTION_H (n).sh_name),
                      ".sdata1")
          || !strcmp ((old_section_names + NEW_SECTION_H (n).sh_name),
                      ".data1")
          || !strcmp (old_section_names + NEW_SECTION_H (nn).sh_name,
                      ".sbss"))
        src = (caddr_t) OLD_SECTION_H (n).sh_addr;
      else
        src = old_base + OLD_SECTION_H (n).sh_offset;

Should .sbss really be using "nn" when all the other tests use "n"?


Recent input:
C-s C-a C-p C-x o C-h d t o o l - b a r - m o d e <return> 
<escape> x t o o l SPC b SPC m o SPC <return> C-l M-v 
M-v M-v M-v M-v C-x o C-x o C-x o C-x 1 C-x b <return> 
C-x k <return> <escape> x c l a <backspace> <backspace> 
a l SPC d SPC <backspace> e SPC <return> <escape> x 
t o o l SPC SPC SPC <return> C-x k <return> C-x 0 <escape> 
x r e p SPC <escape> p <escape> p <escape> p <escape> 
p <return>

Recent messages:
Mark saved where search started
Loading /usr/freeware/libexec/emacs/21.1/mips-sgi-irix6.5/fns-21.1.1.el 
(source)...done
Type C-x 4 b RET to restore the other window.  C-M-v to scroll the help.
Tool-Bar mode disabled
Making completion list...
Loading calendar...done
Loading mule-util...done
Loading cal-move...done
Tool-Bar mode enabled
Making completion list...



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