[compiler-rt] r202014 - [asan] Add a test for interceptors in shared libraries.

[Evgeniy Stepanov]

Author: eugenis
Date: Mon Feb 24 04:04:42 2014
New Revision: 202014

URL: http://llvm.org/viewvc/llvm-project?rev=202014&view=rev
Log:
[asan] Add a test for interceptors in shared libraries.

Added:
    compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc   (with props)
Modified:
    compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc
    compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc

Modified: compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc?rev=202014&r1=202013&r2=202014&view=diff
==============================================================================
--- compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc (original)
+++ compiler-rt/trunk/test/asan/TestCases/SharedLibs/shared-lib-test-so.cc Mon Feb 24 04:04:42 2014
@@ -11,6 +11,7 @@
 //
 //===----------------------------------------------------------------------===//
 #include <stdio.h>
+#include <string.h>
 
 int pad[10];
 int GLOB[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
@@ -24,3 +25,8 @@ extern "C"
 void inc2(int *a, int index) {
   a[index]++;
 }
+
+extern "C"
+void my_memset(void *p, size_t sz) {
+  memset(p, 0, sz);
+}

Modified: compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc?rev=202014&r1=202013&r2=202014&view=diff
==============================================================================
--- compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc (original)
+++ compiler-rt/trunk/test/asan/TestCases/asan-symbolize-sanity-test.cc Mon Feb 24 04:04:42 2014
@@ -30,7 +30,7 @@ int main(int argc, char *argv[]) {
   inc2(array, -1);  // BOOM
   // CHECK: ERROR: AddressSanitizer: heap-buffer-overflow
   // CHECK: READ of size 4 at 0x{{.*}}
-  // CHECK: #0 {{.*}} in inc2 {{.*}}shared-lib-test-so.cc:25
+  // CHECK: #0 {{.*}} in inc2 {{.*}}shared-lib-test-so.cc:26
   // CHECK: #1 {{.*}} in main {{.*}}asan-symbolize-sanity-test.cc:[[@LINE-4]]
   // CHECK: allocated by thread T{{.*}} here:
   // CHECK: #{{.*}} in {{(wrap_|__interceptor_)?}}malloc

Added: compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc?rev=202014&view=auto
==============================================================================
--- compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc (added)
+++ compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc Mon Feb 24 04:04:42 2014
@@ -0,0 +1,36 @@
+// Check that memset() call from a shared library gets intercepted.
+
+// RUN: %clangxx_asan -O0 %p/SharedLibs/shared-lib-test-so.cc \
+// RUN:     -shared -o %T/libinterception-in-shared-lib-test.so \
+// RUN:     -fPIC -Wl,--soname,libinterception-in-shared-lib-test.so
+// RUN: %clangxx_asan -O0 %s -o %t -Wl,-R,\$ORIGIN -L%T -linterception-in-shared-lib-test && \
+// RUN:     not %t 2>&1 | FileCheck %s
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <string>
+
+using std::string;
+
+typedef void (fun_t)(void *p, size_t sz);
+
+int main(int argc, char *argv[]) {
+  string path = string(argv[0]) + "-so.so";
+  printf("opening %s ... \n", path.c_str());
+  void *lib = dlopen(path.c_str(), RTLD_NOW);
+  if (!lib) {
+    printf("error in dlopen(): %s\n", dlerror());
+    return 1;
+  }
+  fun_t *my_memset = (fun_t*)dlsym(lib, "my_memset");
+  if (!my_memset) return 1;
+  printf("ok\n");
+  char buf[10];
+  my_memset(buf, 11);
+  // CHECK: {{.*ERROR: AddressSanitizer: stack-buffer-overflow}}
+  // CHECK: {{WRITE of size 11 at 0x.* thread T0}}
+  // CHECK: {{    #0 0x.* in my_memset .*shared-lib-test-so.cc:31}}
+  return 0;
+}

Propchange: compiler-rt/trunk/test/asan/TestCases/interception-in-shared-lib-test.cc
------------------------------------------------------------------------------
    svn:eol-style = LF