[bug #62078] [grops] option "-fsanitize=bounds" causes a run-time error

[Bjarni Ingi Gislason]

URL:
  <https://savannah.gnu.org/bugs/?62078>

                 Summary: [grops] option "-fsanitize=bounds" causes a run-time
error
                 Project: GNU troff
            Submitted by: bjarniig
            Submitted on: Fri 18 Feb 2022 03:46:22 PM UTC
                Category: Device grops
                Severity: 3 - Normal
              Item Group: Build/Installation
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:

Subject: [grops] option "-fsanitize=bounds" causes a run-time error

  CXXLD    grops
../src/devices/grops/ps.cpp: In member function 'special':
../src/devices/grops/ps.cpp:1567:28: warning: 'i.115' may be used
uninitialized [-Wmaybe-uninitialized]
 1567 |       (this->*(proc_table[i].proc))(p, env);
      |                            ^
../src/devices/grops/ps.cpp:1567:28: note: 'i.115' was declared here
 1567 |       (this->*(proc_table[i].proc))(p, env);
      |                            ^
[...]
fonts_n.roff: listing font 'ZDR'...
/home/bg/git/groff/build/groff: error: grops: Illegal instruction (core
dumped)
make[1]: *** [Makefile:13681: contrib/hdtbl/examples/fonts_n.ps] Error 2
make[1]: *** Waiting for unfinished jobs....
  GROFF    doc/pic.html
groff: error: grops: Illegal instruction (core dumped)
pstops: page range 2 is invalid
Calling 'psselect -q -p2 /tmp/groff-ps-tUdZtD /tmp/groff-ps-d9n3O0
' returned status 512
pnmtopng: Error reading magic number from Netpbm image stream.  Most
often, this means your input file is empty.
Calling 'pnmcut 108 495 583 52 < /tmp/groff-page-yp3kip | pnmcrop -quiet
2> /dev/null | pnmtopng -quiet -background rgb:f/f/f -transparent
rgb:f/f/f> img/pic-1.png
' returned status 256
pstops: page range 3 is invalid
[...] 


  See also bug #61643.






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