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[profile] Support profiling runtime on Fuchsia

Description

[profile] Support profiling runtime on Fuchsia

This ports the profiling runtime on Fuchsia and enables the
instrumentation. Unlike on other platforms, Fuchsia doesn't use
files to dump the instrumentation data since on Fuchsia, filesystem
may not be accessible to the instrumented process. We instead use
the data sink to pass the profiling data to the system the same
sanitizer runtimes do.

Differential Revision: https://reviews.llvm.org/D47208

Details

Committed
phosekJul 24 2018, 8:01 PM
Differential Revision
D47208: [profile] Support profiling runtime on Fuchsia
Parents
rL337880: Add design docs for upcoming file_time_type change.
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