https://bugs.kde.org/show_bug.cgi?id=456171
Paul Floyd <pjfl...@wanadoo.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REPORTED |RESOLVED
Resolution|--- |FIXED
--- Comment #9 from Paul Floyd <pjfl...@wanadoo.fr> ---
commit 9f27d8fbc733165d7b1afbc86f1b3cdcd3837cd1
Author: Paul Floyd <pjfl...@wanadoo.fr>
Date: Sun Jul 3 13:05:54 2022 +0200
Bug-456171 [PATCH] FreeBSD: Don't record address errors when accessing the
'kern.ps_strings' sysctl struct
There is quite a lot of stuff here.
The problem is that setproctitle and kern.ps_strings were using the
Valgrind host auxv
rather than the guest. The proposed patch would have just ignored those
memory ranges.
I've gone a fair bit further than that
1. refactored the initimg code for building the client auxv. Previously we
were
simply ignoring any non-scalar entries. Now we copy most of thse as
well.
That means that 'strtab' built on the client stack no longet only
contains
strings, at can also now contain binary structures. Note I was a bit
concerned that there may be some alignment issues, but I haven't seen
any
problems so far.
2. Added intercepts to sysctl and sysctlbyname for kern.ps_strings, then
find
AT_PS_STRINGS from the client auxv that is now usable from step 1.
3. Some refactoring of sysctl and sysctlbyname syscall wrappers. More to do
there!
4. Added a setproctitle testcase (that also tests the sysctls).
5. Updated the auxv testcase now that more AT_* entries are handled.
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