[Bug 193499] [tests] usr.bin/yacc/err_syntax27.error failures with the latest kyua

Sun Oct 5 08:17:01 UTC 2014

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193499

--- Comment #7 from Craig Rodrigues <rodrigc at FreeBSD.org> ---
Some more info.  If I run this testcase under valgrind, I get some
warnings.

valgrind --track-origins=yes -v yacc -v -d -p err_syntax27_ -b
test-err_syntax27 ./err_syntax27.y

==57756== Memcheck, a memory error detector
==57756== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==57756== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==57756== Command: yacc -v -d -p err_syntax27_ -b test-err_syntax27
./err_syntax27.y
==57756== 
--57756-- Valgrind options:
--57756--    --track-origins=yes
--57756--    -v
--57756-- Contents of /proc/version:
--57756-- Arch and hwcaps: AMD64, amd64-sse3-cx16-avx
--57756-- Page sizes: currently 4096, max supported 4096
--57756-- Valgrind library directory: /usr/local/lib/valgrind
--57756-- Reading syms from /libexec/ld-elf.so.1
--57756--    object doesn't have a symbol table
--57756-- Reading syms from /usr/bin/byacc
--57756-- Reading syms from /usr/local/lib/valgrind/memcheck-amd64-freebsd
--57756--    object doesn't have a symbol table
--57756--    object doesn't have a dynamic symbol table
--57756-- Scheduler: using generic scheduler lock implementation.
--57756-- Reading suppressions file: /usr/local/lib/valgrind/default.supp
==57756== embedded gdbserver: reading from
/tmp/vgdb-pipe-from-vgdb-to-57756-by-rodrigc-on-???
==57756== embedded gdbserver: writing to  
/tmp/vgdb-pipe-to-vgdb-from-57756-by-rodrigc-on-???
==57756== embedded gdbserver: shared mem  
/tmp/vgdb-pipe-shared-mem-vgdb-57756-by-rodrigc-on-???
==57756== 
==57756== TO CONTROL THIS PROCESS USING vgdb (which you probably
==57756== don't want to do, unless you know exactly what you're doing,
==57756== or are doing some strange experiment):
==57756==   /usr/local/lib/valgrind/../../bin/vgdb --pid=57756 ...command...
==57756== 
==57756== TO DEBUG THIS PROCESS USING GDB: start GDB like this
==57756==   /path/to/gdb yacc
==57756== and then give GDB the following command
==57756==   target remote | /usr/local/lib/valgrind/../../bin/vgdb --pid=57756
==57756== --pid is optional if only one valgrind process is running
==57756== 
--57756-- Reading syms from
/usr/local/lib/valgrind/vgpreload_core-amd64-freebsd.so
--57756--    object doesn't have a symbol table
--57756-- Reading syms from
/usr/local/lib/valgrind/vgpreload_memcheck-amd64-freebsd.so
--57756--    object doesn't have a symbol table
--57756-- Reading syms from /lib/libc.so.7
--57756--    object doesn't have a symbol table
--57756-- REDIR: 0x136c1e0 (strncmp) redirected to 0x1025080 (strncmp)
--57756-- REDIR: 0x1371520 (memset) redirected to 0x1025e60 (memset)
--57756-- REDIR: 0x136c220 (strlen) redirected to 0x10247b0 (strlen)
--57756-- REDIR: 0x12d8e10 (malloc) redirected to 0x10211c0 (malloc)
--57756-- REDIR: 0x136b520 (strcpy) redirected to 0x1024810 (strcpy)
--57756-- REDIR: 0x1303d50 (rindex) redirected to 0x1023fe0 (rindex)
--57756-- REDIR: 0x1371580 (memcpy) redirected to 0x1025330 (memcpy)
--57756-- REDIR: 0x136c300 (index) redirected to 0x10240a0 (index)
--57756-- REDIR: 0x12dbdb0 (calloc) redirected to 0x10230e0 (calloc)
--57756-- REDIR: 0x136b600 (strcmp) redirected to 0x1025170 (strcmp)
==57756== Conditional jump or move depends on uninitialised value(s)
==57756==    at 0x4134B6: copy_param (reader.c:675)
==57756==    by 0x40CF9C: read_declarations (reader.c:1359)
==57756==    by 0x40CE02: reader (reader.c:3250)
==57756==    by 0x405ED1: main (main.c:692)
==57756==  Uninitialised value was created by a heap allocation
==57756==    at 0x1021293: malloc (in
/usr/local/lib/valgrind/vgpreload_memcheck-amd64-freebsd.so)
==57756==    by 0x410BDC: get_line (reader.c:128)
==57756==    by 0x40ECFE: nextc (reader.c:214)
==57756==    by 0x40CEC8: read_declarations (reader.c:1311)
==57756==    by 0x40CE02: reader (reader.c:3250)
==57756==    by 0x405ED1: main (main.c:692)
==57756== 
==57756== Conditional jump or move depends on uninitialised value(s)
==57756==    at 0x4134C3: copy_param (reader.c:677)
==57756==    by 0x40CF9C: read_declarations (reader.c:1359)
==57756==    by 0x40CE02: reader (reader.c:3250)
==57756==    by 0x405ED1: main (main.c:692)
==57756==  Uninitialised value was created by a heap allocation
==57756==    at 0x1021293: malloc (in
/usr/local/lib/valgrind/vgpreload_memcheck-amd64-freebsd.so)
==57756==    by 0x410BDC: get_line (reader.c:128)
==57756==    by 0x40ECFE: nextc (reader.c:214)
==57756==    by 0x40CEC8: read_declarations (reader.c:1311)
==57756==    by 0x40CE02: reader (reader.c:3250)
==57756==    by 0x405ED1: main (main.c:692)
==57756== 
yacc: e - line 3 of "./err_syntax27.y", missing '}'
--57756-- REDIR: 0x12df240 (free) redirected to 0x10223c0 (free)
==57756== 
==57756== HEAP SUMMARY:
==57756==     in use at exit: 8,769 bytes in 9 blocks
==57756==   total heap usage: 17 allocs, 8 frees, 17,084 bytes allocated
==57756== 
==57756== Searching for pointers to 9 not-freed blocks
==57756== Checked 4,540,024 bytes
==57756== 
==57756== LEAK SUMMARY:
==57756==    definitely lost: 0 bytes in 0 blocks
==57756==    indirectly lost: 0 bytes in 0 blocks
==57756==      possibly lost: 0 bytes in 0 blocks
==57756==    still reachable: 8,769 bytes in 9 blocks
==57756==         suppressed: 0 bytes in 0 blocks
==57756== Rerun with --leak-check=full to see details of leaked memory
==57756== 
==57756== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)
==57756== 
==57756== 1 errors in context 1 of 2:
==57756== Conditional jump or move depends on uninitialised value(s)
==57756==    at 0x4134C3: copy_param (reader.c:677)
==57756==    by 0x40CF9C: read_declarations (reader.c:1359)
==57756==    by 0x40CE02: reader (reader.c:3250)
==57756==    by 0x405ED1: main (main.c:692)
==57756==  Uninitialised value was created by a heap allocation
==57756==    at 0x1021293: malloc (in
/usr/local/lib/valgrind/vgpreload_memcheck-amd64-freebsd.so)
==57756==    by 0x410BDC: get_line (reader.c:128)
==57756==    by 0x40ECFE: nextc (reader.c:214)
==57756==    by 0x40CEC8: read_declarations (reader.c:1311)
==57756==    by 0x40CE02: reader (reader.c:3250)
==57756==    by 0x405ED1: main (main.c:692)
==57756== 
==57756== 
==57756== 1 errors in context 2 of 2:
==57756== Conditional jump or move depends on uninitialised value(s)
==57756==    at 0x4134B6: copy_param (reader.c:675)
==57756==    by 0x40CF9C: read_declarations (reader.c:1359)
==57756==    by 0x40CE02: reader (reader.c:3250)
==57756==    by 0x405ED1: main (main.c:692)
==57756==  Uninitialised value was created by a heap allocation
==57756==    at 0x1021293: malloc (in
/usr/local/lib/valgrind/vgpreload_memcheck-amd64-freebsd.so)
==57756==    by 0x410BDC: get_line (reader.c:128)
==57756==    by 0x40ECFE: nextc (reader.c:214)
==57756==    by 0x40CEC8: read_declarations (reader.c:1311)
==57756==    by 0x40CE02: reader (reader.c:3250)
==57756==    by 0x405ED1: main (main.c:692)
==57756== 
==57756== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)

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