search for: bnd0

...s idea in 64-bit mode using Intel MPX. MPX can be used both to enforce fine-grained per-object bounds and coarse-grained bounds. My patches use it for the latter purpose, so they make no use of the table-related instructions in MPX. The runtime library [1] simply initializes one bounds register, BND0, to have an upper bound that is set below all safe stacks and above all ordinary data. A pre-isel patch instruments stores that are not authorized to access the safe stack by preceding each such instruction with a BNDCU instruction. That checks whether the following store accesses memory that is...