hctim wrote:
I talked with some folks internally and we came to the consensus that this'll
almost certainly break some debugging tools and such, it probably won't effect
the runtime of binaries, but I wouldn't say that this is a super
confidence-inspiring thing to do.
> AMD language runtimes provide queries for the size of device global symbols
> and functions to copy data to and from device global variables. Runtime gets
> the needed information form the ELF symbol table. So, when it querires the
> size of device global variable, it gets the padded size rather than actual
> size.
It's my understanding your problem is that you are asan-trapping on the
redzones when you copy data to/from the device. Is it possible instead to just
make those copy-from and copy-to functions in the runtime
`__attribute__((no_sanitize("address")))` and copy the padding as well?
https://github.com/llvm/llvm-project/pull/70166
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