[liblouis-liblouisxml] Re: New Release?
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Thu, 6 Sep 2012 03:58:50 -0500
I am tracking down this bug. It appears to occur only if outputPos or
inputPos is not NULL.
John
On Thu, Sep 06, 2012 at 10:30:51AM +0200, Christian Egli wrote:
> Hi all
>
> James Teh <jamie@xxxxxxxxxxxx> writes:
>
> > I guess I'd have to write this test in C, but am not sure about the
> > harness for C tests now.
>
> It's pretty much the same as it was before.
>
> >> Do you have a recipe to reproduce it?
> > See my original post:
> > //www.freelists.org/post/liblouis-liblouisxml/lou-translate-causes-access-violation-with-pass1Only-mode
>
> I spent a bit of time to create a test case for this and run it through
> valgrind. See tests/pass1Only.c for the test case. Then I ran the test
> through valgrind as described in HACKING, i.e. as follows:
>
> $ libtool --mode=execute valgrind -v --tool=memcheck \
> > --leak-check=full --show-reachable=yes \
> > --leak-resolution=high --track-origins=yes \
> > --log-file=valgrind.log ./tests/pass1Only
>
> The resulting log file says that there are no problems (see attachment).
> James can you look at my test case and tell me if I did a correct
> translation from the Python code?
>
> Thanks
> Christian
>
Content-Description: Valgrind log file
> ==22193== Memcheck, a memory error detector
> ==22193== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
> ==22193== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
> ==22193== Command: /home/eglic/src/liblouis.clean/tests/.libs/lt-pass1Only
> ==22193== Parent PID: 32343
> ==22193==
> --22193--
> --22193-- Valgrind options:
> --22193-- --suppressions=/usr/lib/valgrind/debian-libc6-dbg.supp
> --22193-- -v
> --22193-- --tool=memcheck
> --22193-- --leak-check=full
> --22193-- --show-reachable=yes
> --22193-- --leak-resolution=high
> --22193-- --track-origins=yes
> --22193-- --log-file=valgrind.log
> --22193-- Contents of /proc/version:
> --22193-- Linux version 3.2.0-29-generic (buildd@allspice) (gcc version
> 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC
> 2012
> --22193-- Arch and hwcaps: AMD64, amd64-sse3-cx16
> --22193-- Page sizes: currently 4096, max supported 4096
> --22193-- Valgrind library directory: /usr/lib/valgrind
> --22193-- Reading syms from
> /home/eglic/src/liblouis.clean/tests/.libs/lt-pass1Only (0x400000)
> --22193-- Reading syms from /lib/x86_64-linux-gnu/ld-2.15.so (0x4000000)
> --22193-- Considering /lib/x86_64-linux-gnu/ld-2.15.so ..
> --22193-- .. CRC mismatch (computed c5d70380 wanted 7d4a76d0)
> --22193-- Considering /usr/lib/debug/lib/x86_64-linux-gnu/ld-2.15.so ..
> --22193-- .. CRC is valid
> --22193-- Reading syms from /usr/lib/valgrind/memcheck-amd64-linux
> (0x38000000)
> --22193-- Considering /usr/lib/valgrind/memcheck-amd64-linux ..
> --22193-- .. CRC mismatch (computed b9a585cc wanted 749d1a67)
> --22193-- object doesn't have a symbol table
> --22193-- object doesn't have a dynamic symbol table
> --22193-- Reading suppressions file: /usr/lib/valgrind/debian-libc6-dbg.supp
> --22193-- Reading suppressions file: /usr/lib/valgrind/default.supp
> ==22193== embedded gdbserver: reading from
> /tmp/vgdb-pipe-from-vgdb-to-22193-by-eglic-on-???
> ==22193== embedded gdbserver: writing to
> /tmp/vgdb-pipe-to-vgdb-from-22193-by-eglic-on-???
> ==22193== embedded gdbserver: shared mem
> /tmp/vgdb-pipe-shared-mem-vgdb-22193-by-eglic-on-???
> ==22193==
> ==22193== TO CONTROL THIS PROCESS USING vgdb (which you probably
> ==22193== don't want to do, unless you know exactly what you're doing,
> ==22193== or are doing some strange experiment):
> ==22193== /usr/lib/valgrind/../../bin/vgdb --pid=22193 ...command...
> ==22193==
> ==22193== TO DEBUG THIS PROCESS USING GDB: start GDB like this
> ==22193== /path/to/gdb
> /home/eglic/src/liblouis.clean/tests/.libs/lt-pass1Only
> ==22193== and then give GDB the following command
> ==22193== target remote | /usr/lib/valgrind/../../bin/vgdb --pid=22193
> ==22193== --pid is optional if only one valgrind process is running
> ==22193==
> --22193-- REDIR: 0x40189e0 (strlen) redirected to 0x380625c7 (???)
> --22193-- Reading syms from /usr/lib/valgrind/vgpreload_core-amd64-linux.so
> (0x4a25000)
> --22193-- Considering /usr/lib/valgrind/vgpreload_core-amd64-linux.so ..
> --22193-- .. CRC mismatch (computed c82927cb wanted 1861273b)
> --22193-- object doesn't have a symbol table
> --22193-- Reading syms from
> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so (0x4c27000)
> --22193-- Considering /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so ..
> --22193-- .. CRC mismatch (computed 72e29ec9 wanted f3ad49da)
> --22193-- object doesn't have a symbol table
> --22193-- REDIR: 0x4018850 (index) redirected to 0x4c2bc60 (index)
> --22193-- REDIR: 0x40188d0 (strcmp) redirected to 0x4c2cc20 (strcmp)
> --22193-- Reading syms from
> /home/eglic/src/liblouis.clean/liblouis/.libs/liblouis.so.2.3.0 (0x4e32000)
> --22193-- Reading syms from /lib/x86_64-linux-gnu/libc-2.15.so (0x5056000)
> --22193-- Considering /lib/x86_64-linux-gnu/libc-2.15.so ..
> --22193-- .. CRC mismatch (computed 0dfc7f92 wanted 306696b6)
> --22193-- Considering /usr/lib/debug/lib/x86_64-linux-gnu/libc-2.15.so ..
> --22193-- .. CRC is valid
> --22193-- REDIR: 0x50e28c0 (strcasecmp) redirected to 0x4a25610
> (_vgnU_ifunc_wrapper)
> --22193-- REDIR: 0x50dec60 (strnlen) redirected to 0x4a25610
> (_vgnU_ifunc_wrapper)
> --22193-- REDIR: 0x50e4b90 (strncasecmp) redirected to 0x4a25610
> (_vgnU_ifunc_wrapper)
> --22193-- REDIR: 0x50e0650 (__GI_strrchr) redirected to 0x4c2ba80
> (__GI_strrchr)
> --22193-- REDIR: 0x50d89d0 (malloc) redirected to 0x4c2b660 (malloc)
> --22193-- REDIR: 0x50deb80 (__GI_strlen) redirected to 0x4c2bfc0 (__GI_strlen)
> --22193-- REDIR: 0x50ded80 (__GI_strncmp) redirected to 0x4c2c480
> (__GI_strncmp)
> --22193-- REDIR: 0x50de4d0 (strcpy) redirected to 0x4a25610
> (_vgnU_ifunc_wrapper)
> --22193-- REDIR: 0x50ec5f0 (__strcpy_sse2_unaligned) redirected to 0x4c2bfe0
> (strcpy)
> --22193-- REDIR: 0x50e16a0 (memset) redirected to 0x4a25610
> (_vgnU_ifunc_wrapper)
> --22193-- REDIR: 0x50e16e0 (__GI_memset) redirected to 0x4c2e080 (memset)
> --22193-- REDIR: 0x50e7270 (memcpy@@GLIBC_2.14) redirected to 0x4a25610
> (_vgnU_ifunc_wrapper)
> --22193-- REDIR: 0x519c790 (__memcpy_ssse3_back) redirected to 0x4c2cf30
> (memcpy@@GLIBC_2.14)
> --22193-- REDIR: 0x50dcd80 (strcat) redirected to 0x4a25610
> (_vgnU_ifunc_wrapper)
> --22193-- REDIR: 0x50ef410 (__strcat_sse2_unaligned) redirected to 0x4c2bca0
> (strcat)
> --22193-- REDIR: 0x50d9010 (free) redirected to 0x4c2a7c0 (free)
> ==22193==
> ==22193== HEAP SUMMARY:
> ==22193== in use at exit: 0 bytes in 0 blocks
> ==22193== total heap usage: 17 allocs, 17 frees, 75,895 bytes allocated
> ==22193==
> ==22193== All heap blocks were freed -- no leaks are possible
> ==22193==
> ==22193== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 2 from 2)
> --22193--
> --22193-- used_suppression: 2 dl-hack3-cond-1
> ==22193==
> ==22193== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 2 from 2)
>
> --
> Christian Egli
> Swiss Library for the Blind, Visually Impaired and Print Disabled
> Grubenstrasse 12, CH-8045 Zürich, Switzerland
--
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities
For a description of the software, to download it and links to
project pages go to http://www.abilitiessoft.com
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