1 files changed, 64 insertions, 0 deletions
diff --git a/cmake/module/FindUSDT.cmake b/cmake/module/FindUSDT.cmake
new file mode 100644
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+++ b/cmake/module/FindUSDT.cmake
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+# Copyright (c) 2024-present The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or https://opensource.org/license/mit/.
+
+#[=======================================================================[
+FindUSDT
+--------
+
+Finds the Userspace, Statically Defined Tracing header(s).
+
+Imported Targets
+^^^^^^^^^^^^^^^^
+
+This module provides imported target ``USDT::headers``, if
+USDT has been found.
+
+Result Variables
+^^^^^^^^^^^^^^^^
+
+This module defines the following variables:
+
+``USDT_FOUND``
+  "True" if USDT found.
+
+#]=======================================================================]
+
+find_path(USDT_INCLUDE_DIR
+  NAMES sys/sdt.h
+)
+mark_as_advanced(USDT_INCLUDE_DIR)
+
+if(USDT_INCLUDE_DIR)
+  include(CMakePushCheckState)
+  cmake_push_check_state(RESET)
+
+  include(CheckCXXSourceCompiles)
+  set(CMAKE_REQUIRED_INCLUDES ${USDT_INCLUDE_DIR})
+  check_cxx_source_compiles("
+    #include <sys/sdt.h>
+
+    int main()
+    {
+      DTRACE_PROBE(context, event);
+      int a, b, c, d, e, f, g;
+      DTRACE_PROBE7(context, event, a, b, c, d, e, f, g);
+    }
+    " HAVE_USDT_H
+  )
+
+  cmake_pop_check_state()
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(USDT
+  REQUIRED_VARS USDT_INCLUDE_DIR HAVE_USDT_H
+)
+
+if(USDT_FOUND AND NOT TARGET USDT::headers)
+  add_library(USDT::headers INTERFACE IMPORTED)
+  set_target_properties(USDT::headers PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES "${USDT_INCLUDE_DIR}"
+  )
+  set(ENABLE_TRACING TRUE)
+endif()