[PATCH] D37788: [ARM] builtins: Do not abort in clear_cache.

[Manoj Gupta via Phabricator via llvm-commits]

manojgupta added a comment.

Just want to give an update on this.
The issue is being investigated by NaCL team but so far this is what they have told us:

"The addresses are correctly mapped. They start off as mmap()'d from a file as PROT_NONE, but they are mprotect()'d to PROT_READ|PROT_EXEC some time before calling cache flush on them."

Seaching on web, mprotect() + cache flush seems to be a common idiom in JITs.


https://reviews.llvm.org/D37788