From 87f217d20bb24fa92a5882c2a565e1f14ad41e85 Mon Sep 17 00:00:00 2001
From: Dean Michael Berris <dberris@google.com>
Date: Mon, 31 Jul 2017 05:16:20 +0000
Subject: [XRay][compiler-rt] Do not print the warning when the binary is not
 XRay instrumented.

Summary:
Currently when the XRay runtime is linked into a binary that doesn't
have the instrumentation map, we print a warning unconditionally. This
change attempts to make this behaviour more quiet.

Reviewers: kpw, pelikan

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D35789

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@309534 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/xray/TestCases/Linux/quiet-start.cc | 22 ++++++++++++++++++++++
 test/xray/lit.cfg                        |  5 +++++
 2 files changed, 27 insertions(+)
 create mode 100644 test/xray/TestCases/Linux/quiet-start.cc

(limited to 'test')

diff --git a/test/xray/TestCases/Linux/quiet-start.cc b/test/xray/TestCases/Linux/quiet-start.cc
new file mode 100644
index 000000000..08d3a8acc
--- /dev/null
+++ b/test/xray/TestCases/Linux/quiet-start.cc
@@ -0,0 +1,22 @@
+// Ensure that we have a quiet startup when we don't have the XRay
+// instrumentation sleds.
+//
+// RUN: %clangxx -std=c++11 %s -o %t %xraylib
+// RUN: XRAY_OPTIONS="patch_premain=true verbosity=1" %run %t 2>&1 | \
+// RUN:    FileCheck %s --check-prefix NOISY
+// RUN: XRAY_OPTIONS="patch_premain=true verbosity=0" %run %t 2>&1 | \
+// RUN:    FileCheck %s --check-prefix QUIET
+// RUN: XRAY_OPTIONS="" %run %t 2>&1 | FileCheck %s --check-prefix DEFAULT
+#include <iostream>
+
+using namespace std;
+
+int main(int, char**) {
+  // NOISY: {{.*}}XRay instrumentation map missing. Not initializing XRay.
+  // QUIET-NOT: {{.*}}XRay instrumentation map missing. Not initializing XRay.
+  // DEFAULT-NOT: {{.*}}XRay instrumentation map missing. Not initializing XRay.
+  cout << "Hello, XRay!" << endl;
+  // NOISY-NEXT: Hello, XRay!
+  // QUIET: Hello, XRay!
+  // DEFAULT: Hello, XRay!
+}
diff --git a/test/xray/lit.cfg b/test/xray/lit.cfg
index b07dcbd79..2852bdb74 100644
--- a/test/xray/lit.cfg
+++ b/test/xray/lit.cfg
@@ -31,6 +31,11 @@ config.substitutions.append(
     ('%clangxx_xray', build_invocation(clang_xray_cxxflags)))
 config.substitutions.append(
     ('%llvm_xray', llvm_xray))
+config.substitutions.append(
+    ('%xraylib',
+        ('-lm -lpthread -ldl -lrt -L%s '
+         '-Wl,-whole-archive -lclang_rt.xray-%s -Wl,-no-whole-archive')
+        % (config.compiler_rt_libdir, config.host_arch)))
 
 # Default test suffixes.
 config.suffixes = ['.c', '.cc', '.cpp']
-- 
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