[xray][test] Test __xray_typedevent after D43668

Author: MaskRay

compiler-rt/test/xray/TestCases/Posix/typed-event-logging.cpp

@@ -0,0 +1,36 @@
+// RUN: %clangxx_xray %s -o %t
+// RUN: XRAY_OPTIONS=patch_premain=false:verbosity=1 %run %t 2>&1 | FileCheck %s
+
+// REQUIRES: target={{x86_64-.*linux.*}}
+
+#include <assert.h>
+#include <stdio.h>
+#include "xray/xray_interface.h"
+
+[[clang::xray_always_instrument]] void foo() {
+  static constexpr char CustomLogged[] = "hello custom logging!";
+  printf("before calling the custom logging...\n");
+  __xray_typedevent(42, CustomLogged, sizeof(CustomLogged));
+  printf("after calling the custom logging...\n");
+}
+
+static void myprinter(uint16_t type, const void *ptr, size_t size) {
+  assert(type == 42);
+  printf("%.*s\n", static_cast<int>(size), static_cast<const char*>(ptr));
+}
+
+int main() {
+  // CHECK: before calling the custom logging...
+  // CHECK-NEXT: after calling the custom logging...
+  foo();
+  __xray_set_typedevent_handler(myprinter);
+  __xray_patch();
+  // CHECK-NEXT: before calling the custom logging...
+  // CHECK-NEXT: hello custom logging!
+  // CHECK-NEXT: after calling the custom logging...
+  foo();
+  // CHECK-NEXT: before calling the custom logging...
+  // CHECK-NEXT: after calling the custom logging...
+  __xray_remove_typedevent_handler();
+  foo();
+}