forked from OSchip/llvm-project
bb3a3da38d
Unmapping and remapping is dangerous since another thread could touch the shadow memory while it is unmapped. But there is really no need to unmap anyway, since mmap(MAP_FIXED) will happily clobber the existing mapping with zeroes. This is thread-safe since the mmap() is done under the same kernel lock as page faults are done. Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D85947 |
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| CMakeLists.txt | ||