Evgeniy Stepanov 8e9c70be7f Add descriptive names to sanitizer entries in /proc/self/maps. Helps debugging. ... This is done by creating a named shared memory region, unlinking it and setting up a private (i.e. copy-on-write) mapping of that instead of a regular anonymous mapping. I've experimented with regular (sparse) files, but they can not be scaled to the size of MSan shadow mapping, at least on Linux/X86_64 and ext3 fs. Controlled by a common flag, decorate_proc_maps, disabled by default. This patch has a few shortcomings: * not all mappings are annotated, especially in TSan. * our handling of memset() of shadow via mmap() puts small anonymous mappings inside larger named mappings, which looks ugly and can, in theory, hit the mapping number limit. llvm-svn: 238621		2015-05-29 22:31:28 +00:00
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Modules	Silence some CMake 3.3 dev warnings in compiler-rt	2015-05-20 16:56:17 +00:00
config-ix.cmake	Add descriptive names to sanitizer entries in /proc/self/maps. Helps debugging.	2015-05-29 22:31:28 +00:00