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authorMitch Phillips <31459023+hctim@users.noreply.github.com>2021-04-23 10:45:44 -0700
committerMitch Phillips <31459023+hctim@users.noreply.github.com>2021-04-23 11:04:36 -0700
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[hwasan] Remove untagging of kernel-consumed memory
Now that page aliasing for x64 has landed, we don't need to worry about passing tagged pointers to libc, and thus D98875 removed it. Unfortunately, we still test on aarch64 devices that don't have the kernel tagged address ABI (https://reviews.llvm.org/D98875#2649269). All the memory that we pass to the kernel in these tests is from global variables. Instead of having architecture-specific untagging mechanisms for this memory, let's just not tag the globals. Reviewed By: eugenis, morehouse Differential Revision: https://reviews.llvm.org/D101121
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