[compiler-rt] [compiler-rt] Move sanitizer ignorelists to sanitizer-ignorelists target (PR #200518)

[Andrew Haberlandt via llvm-commits]

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@@ -0,0 +1,56 @@
+# The sanitizer ignorelists are default special-case lists that the Clang
+# driver passes to the compiler (via -fsanitize-system-ignorelist) when the
+# corresponding sanitizer is enabled. They are consumed by the compiler rather
+# than linked into any runtime library, so they are built by their own target
+# that does not depend on the sanitizer runtimes and can be built on its own.
+add_compiler_rt_component(sanitizer-ignorelists)
+
+set(SANITIZER_IGNORELIST_FILES
+  asan_ignorelist.txt
+  cfi_ignorelist.txt
+  hwasan_ignorelist.txt
+  msan_ignorelist.txt
+  )
+
+set(sanitizer_ignorelist_outputs)
+foreach(file_name ${SANITIZER_IGNORELIST_FILES})
+  set(src_file "${CMAKE_CURRENT_SOURCE_DIR}/${file_name}")
+  set(dst_file "${COMPILER_RT_OUTPUT_DIR}/share/${file_name}")
+  add_custom_command(OUTPUT ${dst_file}
+    DEPENDS ${src_file}
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src_file} ${dst_file}
+    COMMENT "Copying ${file_name}...")
+  list(APPEND sanitizer_ignorelist_outputs ${dst_file})
+endforeach()
+
+add_custom_target(sanitizer-ignorelist-files DEPENDS ${sanitizer_ignorelist_outputs})
+set_target_properties(sanitizer-ignorelist-files PROPERTIES FOLDER "Compiler-RT/Resources")
+add_dependencies(sanitizer-ignorelists sanitizer-ignorelist-files)
+
+# Install in the Clang resource directory. Each sanitizer runtime's install
+# target (install-asan, install-hwasan, ...) depends on
+# install-sanitizer-ignorelists, so installing or distributing any sanitizer
+# also installs the ignorelists. These install targets are created
+# unconditionally (like compiler-rt's other parent install targets) so the
+# runtime install targets can depend on them under multi-config generators too.
+install(FILES ${SANITIZER_IGNORELIST_FILES}
+  DESTINATION ${COMPILER_RT_INSTALL_DATA_DIR}
+  COMPONENT sanitizer-ignorelists)
+
+add_custom_target(install-sanitizer-ignorelists
+  DEPENDS sanitizer-ignorelists
+  COMMAND "${CMAKE_COMMAND}"
+          -DCMAKE_INSTALL_COMPONENT=sanitizer-ignorelists
+          -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
+add_custom_target(install-sanitizer-ignorelists-stripped
+  DEPENDS sanitizer-ignorelists
+  COMMAND "${CMAKE_COMMAND}"
+          -DCMAKE_INSTALL_COMPONENT=sanitizer-ignorelists
+          -DCMAKE_INSTALL_DO_STRIP=1
+          -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
----------------
ndrewh wrote:

I think you're right, we should just have `install-asan`, `install-asan-stripped`, etc. depend on a single `install-sanitizer-ignorelists` target.

https://github.com/llvm/llvm-project/pull/200518