[PATCH] D31379: [XRay][compiler-rt] Add a test for -fPIE

[Dean Michael Berris via Phabricator via llvm-commits]

dberris created this revision.

Ensure that builds using -fPIE and -mpie-copy-relocations and XRay work
just fine.


https://reviews.llvm.org/D31379

Files:
  test/xray/TestCases/Linux/pie_test.cc


Index: test/xray/TestCases/Linux/pie_test.cc
===================================================================
--- /dev/null
+++ test/xray/TestCases/Linux/pie_test.cc
@@ -0,0 +1,34 @@
+// Test to ensure if we handle PIE executables properly.
+
+// RUN: %clangxx_xray -fxray-instrument -std=c++11 -fPIE %s -o %t
+// RUN: XRAY_OPTIONS="patch_premain=true verbosity=1 xray_logfile_base=pie-test-logging-" %run %t 2>&1 | FileCheck %s
+//
+// RUN: %clangxx_xray -fxray-instrument -std=c++11 -fPIE -mpie-copy-relocations %s -o %t
+// RUN: XRAY_OPTIONS="patch_premain=true verbosity=1 xray_logfile_base=pie-test-logging-" %run %t 2>&1 | FileCheck %s
+// RUN: rm pie-test-logging-*
+
+#include <cstdio>
+
+[[clang::xray_always_instrument]]
+unsigned short foo (unsigned b);
+
+[[clang::xray_always_instrument]]
+unsigned short bar (unsigned short a)
+{
+  printf("bar() is always instrumented!\n");
+  return foo(a);
+}
+
+unsigned short foo (unsigned b)
+{
+  printf("foo() is always instrumented!\n");
+  return b + b + 5;
+}
+
+int main ()
+{
+  // CHECK: XRay: Log file in 'pie-test-logging-{{.*}}'
+  bar(10);
+  // CHECK: bar() is always instrumented!
+  // CHECK-NEXT: foo() is always instrumented!
+}


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