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need help with Pointer Bounds Checking documentation


The section "Pointer Bounds Checker builtins" in extend.texi is on my list for being in need of copy-editing, but reading through the existing text, I am quite confused. In several places it refers to turning the Pointer Bounds Checker off, but how do you do that? I don't see any documented command-line option.

It looks like the commit that added this feature (r217125) included a lot of x86-specific stuff. Is this whole feature specific to x86? If so, the documentation ought to say that. What is the relation of this feature to the -mmpx x86 option, which was added in the same commit? That option does have documentation in invoke.texi but nothing that suggests it's related to Pointer Bounds Checking.

-Sandra the clueless


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