Hi guys,
I use valgrind to detect memory-leak of my module C. Application A use exec
to run application B, and then B will load my module C.so dynamically.
Just for test, I add some defects on purpose, following the quick guide in
http://valgrind.org/docs/manual/quick-start.html. There are two errors in
the C.so right now. (problem 1: heap block overrun and problem 2: memory
leak -- x not freed)
Then, C.so is compiled with the options -O1 and -g.
Here is the command line of valgrind:
valgrind --log-file=log1 --tool=memcheck --leak-check=full
--read-var-info=yes --trace-children=yes --error-limit=no A
And ps says
16497 pts/1 Sl 0:14 valgrind --log-file=log1 --tool=memcheck
--leak-check=full --read-var-info=yes --trace-children=yes --error-limit=no
B
The defects are caught successfully, but in the log file, it says like this:
==16497==
==16497== Invalid write of size 4
==16497== at 0x5FFF336: ???
==16497== by 0x5FFF541: ???
==16497== by 0x602994E: ???
==16497== by 0x832778C: TCFileioManager::loadFileioAdaptor() (in XXXXX)
...
...
==16497== Address 0x5d53d08 is 0 bytes after a block of size 40 alloc'd
==16497== at 0x4004A41: malloc (vg_replace_malloc.c:207)
==16497== by 0x5FFF335: ???
==16497== by 0x5FFF541: ???
==16497== by 0x602994E: ???
==16497== by 0x832778C: TCFileioManager::loadFileioAdaptor() (in XXXXX)
Because I don't have the source code of application B. So I don't know how B
load C.so. What I need to do is just put it at specific path so that B can
find it.
It seems like valgrind doesn't know what the symbols are.
Can valgrind load the symbol table of a dynamic loaded library? Or, what
option did I miss?
Thank you.
- Allen
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