1 files changed, 92 insertions, 0 deletions
diff --git a/test/asan/TestCases/Linux/coverage-missing.cpp b/test/asan/TestCases/Linux/coverage-missing.cpp
new file mode 100644
index 000000000..10acef9af
--- /dev/null
+++ b/test/asan/TestCases/Linux/coverage-missing.cpp
@@ -0,0 +1,92 @@
+// Test for "sancov.py missing ...".
+
+// First case: coverage from executable. main() is called on every code path.
+// RUN: %clangxx_asan -fsanitize-coverage=func,trace-pc-guard %s -o %t -DFOOBAR -DMAIN
+// RUN: rm -rf %t-dir
+// RUN: mkdir -p %t-dir
+// RUN: cd %t-dir
+// RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t
+// RUN: %sancov print *.sancov > main.txt
+// RUN: rm *.sancov
+// RUN: count 1 < main.txt
+// RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t x
+// RUN: %sancov print *.sancov > foo.txt
+// RUN: rm *.sancov
+// RUN: count 3 < foo.txt
+// RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t x x
+// RUN: %sancov print *.sancov > bar.txt
+// RUN: rm *.sancov
+// RUN: count 4 < bar.txt
+// RUN: %sancov missing %t < foo.txt > foo-missing.txt
+// RUN: sort main.txt foo-missing.txt -o foo-missing-with-main.txt
+// The "missing from foo" set may contain a few bogus PCs from the sanitizer
+// runtime, but it must include the entire "bar" code path as a subset. Sorted
+// lists can be tested for set inclusion with diff + grep.
+// RUN: diff bar.txt foo-missing-with-main.txt > %t.log || true
+// RUN: not grep "^<" %t.log
+
+// Second case: coverage from DSO.
+// cd %t-dir
+// RUN: %clangxx_asan -fsanitize-coverage=func,trace-pc-guard %s -o %dynamiclib -DFOOBAR -shared -fPIC
+// RUN: %clangxx_asan -fsanitize-coverage=func,trace-pc-guard %s %dynamiclib -o %t -DMAIN
+// RUN: cd ..
+// RUN: rm -rf %t-dir
+// RUN: mkdir -p %t-dir
+// RUN: cd %t-dir
+// RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t x
+// RUN: %sancov print %xdynamiclib_filename.*.sancov > foo.txt
+// RUN: rm *.sancov
+// RUN: count 2 < foo.txt
+// RUN: %env_asan_opts=coverage=1:coverage_dir=%t-dir %run %t x x
+// RUN: %sancov print %xdynamiclib_filename.*.sancov > bar.txt
+// RUN: rm *.sancov
+// RUN: count 3 < bar.txt
+// RUN: %sancov missing %dynamiclib < foo.txt > foo-missing.txt
+// RUN: diff bar.txt foo-missing.txt > %t.log || true
+// RUN: not grep "^<" %t.log
+
+// FIXME %sancov GetInstrumentedPCs relies on objdump -d to
+// obtain the number of instrumented PCs.  The i386
+// %dynamiclib has .plt entries that are not recognized by
+// objdump,
+// "sancov.py: found 0 instrumented PCs in *.so",
+// causing AddressSanitizer-i386-linux to fail.
+// Change it back to x86-target-arch after %sancov switches to a more robust approach.
+
+// REQUIRES: x86_64-target-arch
+// XFAIL: android
+
+#include <stdio.h>
+
+void foo1();
+void foo2();
+void bar1();
+void bar2();
+void bar3();
+
+#if defined(FOOBAR)
+void foo1() { fprintf(stderr, "foo1\n"); }
+void foo2() { fprintf(stderr, "foo2\n"); }
+
+void bar1() { fprintf(stderr, "bar1\n"); }
+void bar2() { fprintf(stderr, "bar2\n"); }
+void bar3() { fprintf(stderr, "bar3\n"); }
+#endif
+
+#if defined(MAIN)
+int main(int argc, char **argv) {
+  switch (argc) {
+    case 1:
+      break;
+    case 2:
+      foo1();
+      foo2();
+      break;
+    case 3:
+      bar1();
+      bar2();
+      bar3();
+      break;
+  }
+}
+#endif