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9f27d8fbc7
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.