Hi,
*Environment: 32 bit Valgrind (3.4) on FreeBSD 6.x*
We have a requirement that the application we run uses a specific UID
which is different from the original application. When we run the
application with valgrind to detect memory leaks, the application runs
with the uid as that of the valgrind. i.e. if valgrind runs as root, the
application will run as root (but we do not want my application to run
as root). Is there a way where I can run valgrind and my application
with different uids?
Since the application needs to run with a specific uid, we got valgrind
to run with a specific uid (non-root) but we see a difference in
behavior when we run this with non-root user - the memory analysis fails
since the below mentioned redirections do not happen in this case -
--69021:1:signals extending a stack base 0xbebed000 down by 4096
--69021-- REDIR: 0x31cd28 (calloc) redirected to 0x1d564 (calloc)
--69021:1:mallocfr newSuperblock at 0x364000 (pszB 4194288) owner
CLIENT/client
--69021-- REDIR: 0x2bc104 (malloc) redirected to 0x1bd54 (malloc)
--69021-- REDIR: 0x31fd04 (memcpy) redirected to 0x1e2f0 (memcpy)
--69021-- REDIR: 0x31fcc4 (memset) redirected to 0x1ea88 (memset)
--69021-- REDIR: 0x312250 (strchr) redirected to 0x1dc6c (strchr)
Search on the net revealed some issues with using Valgrind with
effective user id. Are there any such known issues (this version 3.4)?
if so how do we get around them.
Thanks,
Mayank
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