Contributed by tbert on from the loading-the-dice dept.
ld.so has a very basic malloc. This diff changes it to use a (somewhat stripped) libc malloc with all the randomization and other goodness.
The diff has malloc, free and calloc, no realloc. A next sweep would actually use calloc (and reallocarray) in ld.so. It currently only uses malloc (with zero filling!), but there's room for improvement here.
I only tested this on sparc64. Please help and test this on various platforms.
Keep a root shell and a copy of ld.so handy in case it blows up.
Note carefully the warnings about root shell and spare copy of ld.so around during testing. You can pull the raw patch here.
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