[PATCH] D40599: [XRay][compiler-rt][Darwin] Use dynamic initialisation as an alternative

[Dean Michael Berris via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rCRT319366: [XRay][compiler-rt][Darwin] Use dynamic initialisation as an alternative (authored by dberris).

Changed prior to commit:
  https://reviews.llvm.org/D40599?vs=124719&id=124813#toc

Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D40599

Files:
  lib/xray/xray_init.cc


Index: lib/xray/xray_init.cc
===================================================================
--- lib/xray/xray_init.cc
+++ lib/xray/xray_init.cc
@@ -88,8 +88,15 @@
 #endif
 }
 
-// Only add the preinit array initialization if the sanitizers can.
 #if !defined(XRAY_NO_PREINIT) && SANITIZER_CAN_USE_PREINIT_ARRAY
+// Only add the preinit array initialization if the sanitizers can.
 __attribute__((section(".preinit_array"),
                used)) void (*__local_xray_preinit)(void) = __xray_init;
+#else
+// If we cannot use the .preinit_array section, we should instead use dynamic
+// initialisation.
+static bool UNUSED __local_xray_dyninit = [] {
+  __xray_init();
+  return true;
+}();
 #endif


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