Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/lib/asan/README.txt

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+AddressSanitizer RT
+================================
+This directory contains sources of the AddressSanitizer (ASan) runtime library.
+
+Directory structure:
+README.txt       : This file.
+Makefile.mk      : File for make-based build.
+CMakeLists.txt   : File for cmake-based build.
+asan_*.{cc,h}    : Sources of the asan runtime library.
+scripts/*        : Helper scripts.
+tests/*          : ASan unit tests.
+
+Also ASan runtime needs the following libraries:
+lib/interception/      : Machinery used to intercept function calls.
+lib/sanitizer_common/  : Code shared between various sanitizers.
+
+ASan runtime currently also embeds part of LeakSanitizer runtime for
+leak detection (lib/lsan/lsan_common.{cc,h}).
+
+ASan runtime can only be built by CMake. You can run ASan tests
+from the root of your CMake build tree:
+
+make check-asan
+
+For more instructions see:
+https://github.com/google/sanitizers/wiki/AddressSanitizerHowToBuild