Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/test/profile/Inputs/instrprof-dlopen-main.c

@@ -0,0 +1,47 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef DLOPEN_FUNC_DIR
+#include <dlfcn.h>
+#else
+void func(int K);
+void func2(int K);
+#endif
+
+int main(int argc, char *argv[]) {
+#ifdef DLOPEN_FUNC_DIR
+  dlerror();
+  void *f1_handle = dlopen(DLOPEN_FUNC_DIR"/func.shared", DLOPEN_FLAGS);
+  if (f1_handle == NULL) {
+    fprintf(stderr, "unable to open '" DLOPEN_FUNC_DIR "/func.shared': %s\n",
+            dlerror());
+    return EXIT_FAILURE;
+  }
+
+  void (*func)(int) = (void (*)(int))dlsym(f1_handle, "func");
+  if (func == NULL) {
+    fprintf(stderr, "unable to lookup symbol 'func': %s\n", dlerror());
+    return EXIT_FAILURE;
+  }
+
+  void *f2_handle = dlopen(DLOPEN_FUNC_DIR"/func2.shared", DLOPEN_FLAGS);
+  if (f2_handle == NULL) {
+    fprintf(stderr, "unable to open '" DLOPEN_FUNC_DIR "/func2.shared': %s\n",
+            dlerror());
+    return EXIT_FAILURE;
+  }
+
+  void (*func2)(int) = (void (*)(int))dlsym(f2_handle, "func2");
+  if (func2 == NULL) {
+    fprintf(stderr, "unable to lookup symbol 'func2': %s\n", dlerror());
+    return EXIT_FAILURE;
+  }
+#endif
+
+  func(1);
+  func2(0);
+
+  return EXIT_SUCCESS;
+}
+