This patch adds 48-bits VMA support for msan on aarch64. As current
mappings for aarch64, 48-bit VMA also supports PIE executable.
Tested on 39 and 48-bit VMA kernels on aarch64.
llvm-svn: 279753
This patch reorganize the platform specific mapping information to
export the application mask on a external variable. This exported
variable will be used by intrumentation phase to create code to be
used on architecture with multiple VMA range.
The patch creates a new header, dfsan_platform.h, and move all the
mapping information and also create function accessors to the
mapping value.
Also for aarch64 it initialize application exported mask to the
value based on runtime VMA detection.
llvm-svn: 254197
Adhemerval Zanella